5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) Experimental support for use of HMAC via EVP_PKEY interface. This
8 allows HMAC to be handled via the EVP_DigestSign*() interface. The
9 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
10 ENGINE support for HMAC keys which are unextractable. New -mac and
11 -macopt options to dgst utility.
14 *) New option -sigopt to dgst utility. Update dgst to use
15 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
16 alternative signing paramaters such as X9.31 or PSS in the dgst
20 *) Change ssl_cipher_apply_rule(), the internal function that does
21 the work each time a ciphersuite string requests enabling
22 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
23 removing ("!foo+bar") a class of ciphersuites: Now it maintains
24 the order of disabled ciphersuites such that those ciphersuites
25 that most recently went from enabled to disabled not only stay
26 in order with respect to each other, but also have higher priority
27 than other disabled ciphersuites the next time ciphersuites are
30 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
31 the same ciphersuites as with "HIGH" alone, but in a specific
32 order where the PSK ciphersuites come first (since they are the
33 most recently disabled ciphersuites when "HIGH" is parsed).
35 Also, change ssl_create_cipher_list() (using this new
36 funcionality) such that between otherwise identical
37 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
41 *) Change ssl_create_cipher_list() so that it automatically
42 arranges the ciphersuites in reasonable order before starting
43 to process the rule string. Thus, the definition for "DEFAULT"
44 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
45 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
46 This makes it much easier to arrive at a reasonable default order
47 in applications for which anonymous ciphers are OK (meaning
48 that you can't actually use DEFAULT).
49 [Bodo Moeller; suggested by Victor Duchovni]
51 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
52 processing) into multiple integers instead of setting
53 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
54 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
55 (These masks as well as the individual bit definitions are hidden
56 away into the non-exported interface ssl/ssl_locl.h, so this
57 change to the definition of the SSL_CIPHER structure shouldn't
58 affect applications.) This give us more bits for each of these
59 categories, so there is no longer a need to coagulate AES128 and
60 AES256 into a single algorithm bit, and to coagulate Camellia128
61 and Camellia256 into a single algorithm bit, which has led to all
64 Thus, among other things, the kludge introduced in 0.9.7m and
65 0.9.8e for masking out AES256 independently of AES128 or masking
66 out Camellia256 independently of AES256 is not needed here in 0.9.9.
68 With the change, we also introduce new ciphersuite aliases that
69 so far were missing: "AES128", "AES256", "CAMELLIA128", and
73 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
74 Use the leftmost N bytes of the signature input if the input is
75 larger than the prime q (with N being the size in bytes of q).
78 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
79 it yet and it is largely untested.
82 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
85 *) Initial incomplete changes to avoid need for function casts in OpenSSL
86 when OPENSSL_NO_FCAST is set: some compilers (gcc 4.2 and later) reject
87 their use. Safestack is reimplemented using inline functions: tests show
88 that these calls are typically optimized away by compilers so they have
89 no additional overhead. Update ASN1 to avoid use of legacy functions.
92 *) Win32/64 targets are linked with Winsock2.
95 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
96 to external functions. This can be used to increase CRL handling
97 efficiency especially when CRLs are very large by (for example) storing
98 the CRL revoked certificates in a database.
101 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
102 new CRLs added to a directory can be used. New command line option
103 -verify_return_error to s_client and s_server. This causes real errors
104 to be returned by the verify callback instead of carrying on no matter
105 what. This reflects the way a "real world" verify callback would behave.
108 *) GOST engine, supporting several GOST algorithms and public key formats.
109 Kindly donated by Cryptocom.
112 *) Partial support for Issuing Distribution Point CRL extension. CRLs
113 partitioned by DP are handled but no indirect CRL or reason partitioning
114 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
115 selected via a scoring technique which handles IDP and AKID in CRLs.
118 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
119 will ultimately be used for all verify operations: this will remove the
120 X509_STORE dependency on certificate verification and allow alternative
121 lookup methods. X509_STORE based implementations of these two callbacks.
124 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
125 Modify get_crl() to find a valid (unexpired) CRL if possible.
128 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
129 this would be called X509_CRL_cmp() but that name is already used by
130 a function that just compares CRL issuer names. Cache several CRL
131 extensions in X509_CRL structure and cache CRLDP in X509.
134 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
135 this maps equivalent X509_NAME structures into a consistent structure.
136 Name comparison can then be performed rapidly using memcmp().
139 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
143 *) Allow digests to supply their own micalg string for S/MIME type using
144 the ctrl EVP_MD_CTRL_MICALG.
147 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
148 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
149 ctrl. It can then customise the structure before and/or after signing
153 *) New function OBJ_add_sigid() to allow application defined signature OIDs
154 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
155 to free up any added signature OIDs.
158 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
159 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
160 digest and cipher tables. New options added to openssl utility:
161 list-message-digest-algorithms and list-cipher-algorithms.
164 *) In addition to the numerical (unsigned long) thread ID, provide
165 for a pointer (void *) thread ID. This helps accomodate systems
166 that do not provide an unsigned long thread ID. OpenSSL assumes
167 it is in the same thread iff both the numerical and the pointer
168 thread ID agree; so applications are just required to define one
169 of them appropriately (e.g., by using a pointer to a per-thread
170 memory object malloc()ed by the application for the pointer-type
171 thread ID). Exactly analoguous to the existing functions
173 void CRYPTO_set_id_callback(unsigned long (*func)(void));
174 unsigned long (*CRYPTO_get_id_callback(void))(void);
175 unsigned long CRYPTO_thread_id(void);
177 we now have additional functions
179 void CRYPTO_set_idptr_callback(void *(*func)(void));
180 void *(*CRYPTO_get_idptr_callback(void))(void);
181 void *CRYPTO_thread_idptr(void);
183 also in <openssl/crypto.h>. The default value for
184 CRYPTO_thread_idptr() if the application has not provided its own
188 *) Change the array representation of binary polynomials: the list
189 of degrees of non-zero coefficients is now terminated with -1.
190 Previously it was terminated with 0, which was also part of the
191 value; thus, the array representation was not applicable to
192 polynomials where t^0 has coefficient zero. This change makes
193 the array representation useful in a more general context.
196 *) Various modifications and fixes to SSL/TLS cipher string
197 handling. For ECC, the code now distinguishes between fixed ECDH
198 with RSA certificates on the one hand and with ECDSA certificates
199 on the other hand, since these are separate ciphersuites. The
200 unused code for Fortezza ciphersuites has been removed.
202 For consistency with EDH, ephemeral ECDH is now called "EECDH"
203 (not "ECDHE"). For consistency with the code for DH
204 certificates, use of ECDH certificates is now considered ECDH
205 authentication, not RSA or ECDSA authentication (the latter is
206 merely the CA's signing algorithm and not actively used in the
209 The temporary ciphersuite alias "ECCdraft" is no longer
210 available, and ECC ciphersuites are no longer excluded from "ALL"
211 and "DEFAULT". The following aliases now exist for RFC 4492
212 ciphersuites, most of these by analogy with the DH case:
214 kECDHr - ECDH cert, signed with RSA
215 kECDHe - ECDH cert, signed with ECDSA
216 kECDH - ECDH cert (signed with either RSA or ECDSA)
217 kEECDH - ephemeral ECDH
218 ECDH - ECDH cert or ephemeral ECDH
224 AECDH - anonymous ECDH
225 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
229 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
230 Use correct micalg parameters depending on digest(s) in signed message.
233 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
234 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
237 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
238 an engine to register a method. Add ENGINE lookups for methods and
239 functional reference processing.
242 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
243 EVP_{Sign,Verify}* which allow an application to customise the signature
247 *) New -resign option to smime utility. This adds one or more signers
248 to an existing PKCS#7 signedData structure. Also -md option to use an
249 alternative message digest algorithm for signing.
252 *) Tidy up PKCS#7 routines and add new functions to make it easier to
253 create PKCS7 structures containing multiple signers. Update smime
254 application to support multiple signers.
257 *) New -macalg option to pkcs12 utility to allow setting of an alternative
261 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
262 Reorganize PBE internals to lookup from a static table using NIDs,
263 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
264 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
265 PRF which will be automatically used with PBES2.
268 *) Replace the algorithm specific calls to generate keys in "req" with the
272 *) Update PKCS#7 enveloped data routines to use new API. This is now
273 supported by any public key method supporting the encrypt operation. A
274 ctrl is added to allow the public key algorithm to examine or modify
275 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
279 *) Add a ctrl to asn1 method to allow a public key algorithm to express
280 a default digest type to use. In most cases this will be SHA1 but some
281 algorithms (such as GOST) need to specify an alternative digest. The
282 return value indicates how strong the prefernce is 1 means optional and
283 2 is mandatory (that is it is the only supported type). Modify
284 ASN1_item_sign() to accept a NULL digest argument to indicate it should
285 use the default md. Update openssl utilities to use the default digest
286 type for signing if it is not explicitly indicated.
289 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
290 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
291 signing method from the key type. This effectively removes the link
292 between digests and public key types.
295 *) Add an OID cross reference table and utility functions. Its purpose is to
296 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
297 rsaEncryption. This will allow some of the algorithm specific hackery
298 needed to use the correct OID to be removed.
301 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
302 structures for PKCS7_sign(). They are now set up by the relevant public
306 *) Add provisional EC pkey method with support for ECDSA and ECDH.
309 *) Add support for key derivation (agreement) in the API, DH method and
313 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
314 public and private key formats. As a side effect these add additional
315 command line functionality not previously available: DSA signatures can be
316 generated and verified using pkeyutl and DH key support and generation in
321 [Oliver Tappe <zooey@hirschkaefer.de>]
323 *) New make target "install_html_docs" installs HTML renditions of the
325 [Oliver Tappe <zooey@hirschkaefer.de>]
327 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
328 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
329 support key and parameter generation and add initial key generation
330 functionality for RSA.
333 *) Add functions for main EVP_PKEY_method operations. The undocumented
334 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
335 EVP_PKEY_{encrypt,decrypt}_old.
338 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
339 key API, doesn't do much yet.
342 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
343 public key algorithms. New option to openssl utility:
344 "list-public-key-algorithms" to print out info.
347 *) Implement the Supported Elliptic Curves Extension for
348 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
351 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
352 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
355 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
356 utilities such as rsa, dsa, dsaparam etc except they process any key
360 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
361 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
362 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
366 *) Initial support for pluggable public key ASN1.
367 De-spaghettify the public key ASN1 handling. Move public and private
368 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
369 algorithm specific handling to a single module within the relevant
370 algorithm directory. Add functions to allow (near) opaque processing
371 of public and private key structures.
374 *) Implement the Supported Point Formats Extension for
375 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
378 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
379 for the psk identity [hint] and the psk callback functions to the
380 SSL_SESSION, SSL and SSL_CTX structure.
383 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
387 SSL_CTX_use_psk_identity_hint
388 SSL_get_psk_identity_hint
390 SSL_use_psk_identity_hint
392 [Mika Kousa and Pasi Eronen of Nokia Corporation]
394 *) Add RFC 3161 compliant time stamp request creation, response generation
395 and response verification functionality.
396 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
398 *) Add initial support for TLS extensions, specifically for the server_name
399 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
400 have new members for a host name. The SSL data structure has an
401 additional member SSL_CTX *initial_ctx so that new sessions can be
402 stored in that context to allow for session resumption, even after the
403 SSL has been switched to a new SSL_CTX in reaction to a client's
404 server_name extension.
406 New functions (subject to change):
409 SSL_get_servername_type()
412 New CTRL codes and macros (subject to change):
414 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
415 - SSL_CTX_set_tlsext_servername_callback()
416 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
417 - SSL_CTX_set_tlsext_servername_arg()
418 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
420 openssl s_client has a new '-servername ...' option.
422 openssl s_server has new options '-servername_host ...', '-cert2 ...',
423 '-key2 ...', '-servername_fatal' (subject to change). This allows
424 testing the HostName extension for a specific single host name ('-cert'
425 and '-key' remain fallbacks for handshakes without HostName
426 negotiation). If the unrecogninzed_name alert has to be sent, this by
427 default is a warning; it becomes fatal with the '-servername_fatal'
430 [Peter Sylvester, Remy Allais, Christophe Renou]
432 *) Whirlpool hash implementation is added.
435 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
436 bn(64,32). Because of instruction set limitations it doesn't have
437 any negative impact on performance. This was done mostly in order
438 to make it possible to share assembler modules, such as bn_mul_mont
439 implementations, between 32- and 64-bit builds without hassle.
442 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
443 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
447 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
448 dedicated Montgomery multiplication procedure, is introduced.
449 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
450 "64-bit" performance on certain 32-bit targets.
453 *) New option SSL_OP_NO_COMP to disable use of compression selectively
454 in SSL structures. New SSL ctrl to set maximum send fragment size.
455 Save memory by seeting the I/O buffer sizes dynamically instead of
456 using the maximum available value.
459 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
460 in addition to the text details.
463 *) Very, very preliminary EXPERIMENTAL support for printing of general
464 ASN1 structures. This currently produces rather ugly output and doesn't
465 handle several customised structures at all.
468 *) Integrated support for PVK file format and some related formats such
469 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
470 these in the 'rsa' and 'dsa' utilities.
473 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
476 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
477 place for the (very old) "NETSCAPE" format certificates which are now
478 handled using new ASN1 code equivalents.
481 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
482 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
483 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
486 *) Modify CRL distribution points extension code to print out previously
487 unsupported fields. Enhance extension setting code to allow setting of
491 *) Add print and set support for Issuing Distribution Point CRL extension.
494 *) Change 'Configure' script to enable Camellia by default.
497 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
499 *) Mitigate branch prediction attacks, which can be practical if a
500 single processor is shared, allowing a spy process to extract
501 information. For detailed background information, see
502 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
503 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
504 and Necessary Software Countermeasures"). The core of the change
505 are new versions BN_div_no_branch() and
506 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
507 respectively, which are slower, but avoid the security-relevant
508 conditional branches. These are automatically called by BN_div()
509 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
510 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
511 remove a conditional branch.
513 BN_FLG_CONSTTIME is the new name for the previous
514 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
515 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
516 in the exponent causes BN_mod_exp_mont() to use the alternative
517 implementation in BN_mod_exp_mont_consttime().) The old name
518 remains as a deprecated alias.
520 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
521 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
522 constant-time implementations for more than just exponentiation.
523 Here too the old name is kept as a deprecated alias.
525 BN_BLINDING_new() will now use BN_dup() for the modulus so that
526 the BN_BLINDING structure gets an independent copy of the
527 modulus. This means that the previous "BIGNUM *m" argument to
528 BN_BLINDING_new() and to BN_BLINDING_create_param() now
529 essentially becomes "const BIGNUM *m", although we can't actually
530 change this in the header file before 0.9.9. It allows
531 RSA_setup_blinding() to use BN_with_flags() on the modulus to
532 enable BN_FLG_CONSTTIME.
534 [Matthew D Wood (Intel Corp)]
536 *) In the SSL/TLS server implementation, be strict about session ID
537 context matching (which matters if an application uses a single
538 external cache for different purposes). Previously,
539 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
540 set. This did ensure strict client verification, but meant that,
541 with applications using a single external cache for quite
542 different requirements, clients could circumvent ciphersuite
543 restrictions for a given session ID context by starting a session
544 in a different context.
547 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
548 a ciphersuite string such as "DEFAULT:RSA" cannot enable
549 authentication-only ciphersuites.
552 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
554 *) Since AES128 and AES256 (and similarly Camellia128 and
555 Camellia256) share a single mask bit in the logic of
556 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
557 kludge to work properly if AES128 is available and AES256 isn't
558 (or if Camellia128 is available and Camellia256 isn't).
561 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
562 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
563 When a point or a seed is encoded in a BIT STRING, we need to
564 prevent the removal of trailing zero bits to get the proper DER
565 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
566 of a NamedBitList, for which trailing 0 bits need to be removed.)
569 *) Have SSL/TLS server implementation tolerate "mismatched" record
570 protocol version while receiving ClientHello even if the
571 ClientHello is fragmented. (The server can't insist on the
572 particular protocol version it has chosen before the ServerHello
573 message has informed the client about his choice.)
576 *) Add RFC 3779 support.
577 [Rob Austein for ARIN, Ben Laurie]
579 *) Load error codes if they are not already present instead of using a
580 static variable. This allows them to be cleanly unloaded and reloaded.
581 Improve header file function name parsing.
584 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
585 or CAPABILITY handshake as required by RFCs.
588 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
590 *) Introduce limits to prevent malicious keys being able to
591 cause a denial of service. (CVE-2006-2940)
592 [Steve Henson, Bodo Moeller]
594 *) Fix ASN.1 parsing of certain invalid structures that can result
595 in a denial of service. (CVE-2006-2937) [Steve Henson]
597 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
598 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
600 *) Fix SSL client code which could crash if connecting to a
601 malicious SSLv2 server. (CVE-2006-4343)
602 [Tavis Ormandy and Will Drewry, Google Security Team]
604 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
605 match only those. Before that, "AES256-SHA" would be interpreted
606 as a pattern and match "AES128-SHA" too (since AES128-SHA got
607 the same strength classification in 0.9.7h) as we currently only
608 have a single AES bit in the ciphersuite description bitmap.
609 That change, however, also applied to ciphersuite strings such as
610 "RC4-MD5" that intentionally matched multiple ciphersuites --
611 namely, SSL 2.0 ciphersuites in addition to the more common ones
612 from SSL 3.0/TLS 1.0.
614 So we change the selection algorithm again: Naming an explicit
615 ciphersuite selects this one ciphersuite, and any other similar
616 ciphersuite (same bitmap) from *other* protocol versions.
617 Thus, "RC4-MD5" again will properly select both the SSL 2.0
618 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
620 Since SSL 2.0 does not have any ciphersuites for which the
621 128/256 bit distinction would be relevant, this works for now.
622 The proper fix will be to use different bits for AES128 and
623 AES256, which would have avoided the problems from the beginning;
624 however, bits are scarce, so we can only do this in a new release
625 (not just a patchlevel) when we can change the SSL_CIPHER
626 definition to split the single 'unsigned long mask' bitmap into
627 multiple values to extend the available space.
631 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
633 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
634 (CVE-2006-4339) [Ben Laurie and Google Security Team]
636 *) Add AES IGE and biIGE modes.
639 *) Change the Unix randomness entropy gathering to use poll() when
640 possible instead of select(), since the latter has some
641 undesirable limitations.
642 [Darryl Miles via Richard Levitte and Bodo Moeller]
644 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
645 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
646 cannot be implicitly activated as part of, e.g., the "AES" alias.
647 However, please upgrade to OpenSSL 0.9.9[-dev] for
648 non-experimental use of the ECC ciphersuites to get TLS extension
649 support, which is required for curve and point format negotiation
650 to avoid potential handshake problems.
653 *) Disable rogue ciphersuites:
655 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
656 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
657 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
659 The latter two were purportedly from
660 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
663 Also deactivate the remaining ciphersuites from
664 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
665 unofficial, and the ID has long expired.
668 *) Fix RSA blinding Heisenbug (problems sometimes occured on
669 dual-core machines) and other potential thread-safety issues.
672 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
673 versions), which is now available for royalty-free use
674 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
675 Also, add Camellia TLS ciphersuites from RFC 4132.
677 To minimize changes between patchlevels in the OpenSSL 0.9.8
678 series, Camellia remains excluded from compilation unless OpenSSL
679 is configured with 'enable-camellia'.
682 *) Disable the padding bug check when compression is in use. The padding
683 bug check assumes the first packet is of even length, this is not
684 necessarily true if compresssion is enabled and can result in false
685 positives causing handshake failure. The actual bug test is ancient
686 code so it is hoped that implementations will either have fixed it by
687 now or any which still have the bug do not support compression.
690 Changes between 0.9.8a and 0.9.8b [04 May 2006]
692 *) When applying a cipher rule check to see if string match is an explicit
693 cipher suite and only match that one cipher suite if it is.
696 *) Link in manifests for VC++ if needed.
697 [Austin Ziegler <halostatue@gmail.com>]
699 *) Update support for ECC-based TLS ciphersuites according to
700 draft-ietf-tls-ecc-12.txt with proposed changes (but without
701 TLS extensions, which are supported starting with the 0.9.9
702 branch, not in the OpenSSL 0.9.8 branch).
705 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
706 opaque EVP_CIPHER_CTX handling.
709 *) Fixes and enhancements to zlib compression code. We now only use
710 "zlib1.dll" and use the default __cdecl calling convention on Win32
711 to conform with the standards mentioned here:
712 http://www.zlib.net/DLL_FAQ.txt
713 Static zlib linking now works on Windows and the new --with-zlib-include
714 --with-zlib-lib options to Configure can be used to supply the location
715 of the headers and library. Gracefully handle case where zlib library
719 *) Several fixes and enhancements to the OID generation code. The old code
720 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
721 handle numbers larger than ULONG_MAX, truncated printing and had a
722 non standard OBJ_obj2txt() behaviour.
725 *) Add support for building of engines under engine/ as shared libraries
726 under VC++ build system.
729 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
730 Hopefully, we will not see any false combination of paths any more.
733 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
735 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
736 (part of SSL_OP_ALL). This option used to disable the
737 countermeasure against man-in-the-middle protocol-version
738 rollback in the SSL 2.0 server implementation, which is a bad
739 idea. (CVE-2005-2969)
741 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
742 for Information Security, National Institute of Advanced Industrial
743 Science and Technology [AIST], Japan)]
745 *) Add two function to clear and return the verify parameter flags.
748 *) Keep cipherlists sorted in the source instead of sorting them at
749 runtime, thus removing the need for a lock.
752 *) Avoid some small subgroup attacks in Diffie-Hellman.
753 [Nick Mathewson and Ben Laurie]
755 *) Add functions for well-known primes.
758 *) Extended Windows CE support.
759 [Satoshi Nakamura and Andy Polyakov]
761 *) Initialize SSL_METHOD structures at compile time instead of during
762 runtime, thus removing the need for a lock.
765 *) Make PKCS7_decrypt() work even if no certificate is supplied by
766 attempting to decrypt each encrypted key in turn. Add support to
770 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
772 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
775 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
778 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
779 key into the same file any more.
782 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
785 *) Add -utf8 command line and config file option to 'ca'.
786 [Stefan <stf@udoma.org]
788 *) Removed the macro des_crypt(), as it seems to conflict with some
789 libraries. Use DES_crypt().
792 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
793 involves renaming the source and generated shared-libs for
794 both. The engines will accept the corrected or legacy ids
795 ('ncipher' and '4758_cca' respectively) when binding. NB,
796 this only applies when building 'shared'.
797 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
799 *) Add attribute functions to EVP_PKEY structure. Modify
800 PKCS12_create() to recognize a CSP name attribute and
801 use it. Make -CSP option work again in pkcs12 utility.
804 *) Add new functionality to the bn blinding code:
805 - automatic re-creation of the BN_BLINDING parameters after
806 a fixed number of uses (currently 32)
807 - add new function for parameter creation
808 - introduce flags to control the update behaviour of the
809 BN_BLINDING parameters
810 - hide BN_BLINDING structure
811 Add a second BN_BLINDING slot to the RSA structure to improve
812 performance when a single RSA object is shared among several
816 *) Add support for DTLS.
817 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
819 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
820 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
823 *) Remove buggy and incompletet DH cert support from
824 ssl/ssl_rsa.c and ssl/s3_both.c
827 *) Use SHA-1 instead of MD5 as the default digest algorithm for
828 the apps/openssl applications.
831 *) Compile clean with "-Wall -Wmissing-prototypes
832 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
833 DEBUG_SAFESTACK must also be set.
836 *) Change ./Configure so that certain algorithms can be disabled by default.
837 The new counterpiece to "no-xxx" is "enable-xxx".
839 The patented RC5 and MDC2 algorithms will now be disabled unless
840 "enable-rc5" and "enable-mdc2", respectively, are specified.
842 (IDEA remains enabled despite being patented. This is because IDEA
843 is frequently required for interoperability, and there is no license
844 fee for non-commercial use. As before, "no-idea" can be used to
845 avoid this algorithm.)
849 *) Add processing of proxy certificates (see RFC 3820). This work was
850 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
851 EGEE (Enabling Grids for E-science in Europe).
854 *) RC4 performance overhaul on modern architectures/implementations, such
855 as Intel P4, IA-64 and AMD64.
858 *) New utility extract-section.pl. This can be used specify an alternative
859 section number in a pod file instead of having to treat each file as
860 a separate case in Makefile. This can be done by adding two lines to the
863 =for comment openssl_section:XXX
865 The blank line is mandatory.
869 *) New arguments -certform, -keyform and -pass for s_client and s_server
870 to allow alternative format key and certificate files and passphrase
874 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
875 update associated structures and add various utility functions.
877 Add new policy related verify parameters, include policy checking in
878 standard verify code. Enhance 'smime' application with extra parameters
879 to support policy checking and print out.
882 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
883 Nehemiah processors. These extensions support AES encryption in hardware
884 as well as RNG (though RNG support is currently disabled).
885 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
887 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
890 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
891 [Andy Polyakov and a number of other people]
893 *) Improved PowerPC platform support. Most notably BIGNUM assembler
894 implementation contributed by IBM.
895 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
897 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
898 exponent rather than 'unsigned long'. There is a corresponding change to
899 the new 'rsa_keygen' element of the RSA_METHOD structure.
900 [Jelte Jansen, Geoff Thorpe]
902 *) Functionality for creating the initial serial number file is now
903 moved from CA.pl to the 'ca' utility with a new option -create_serial.
905 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
906 number file to 1, which is bound to cause problems. To avoid
907 the problems while respecting compatibility between different 0.9.7
908 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
909 CA.pl for serial number initialization. With the new release 0.9.8,
910 we can fix the problem directly in the 'ca' utility.)
913 *) Reduced header interdepencies by declaring more opaque objects in
914 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
915 give fewer recursive includes, which could break lazy source code - so
916 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
917 developers should define this symbol when building and using openssl to
918 ensure they track the recommended behaviour, interfaces, [etc], but
919 backwards-compatible behaviour prevails when this isn't defined.
922 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
925 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
926 This will generate a random key of the appropriate length based on the
927 cipher context. The EVP_CIPHER can provide its own random key generation
928 routine to support keys of a specific form. This is used in the des and
929 3des routines to generate a key of the correct parity. Update S/MIME
930 code to use new functions and hence generate correct parity DES keys.
931 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
932 valid (weak or incorrect parity).
935 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
936 as looking them up. This is useful when the verified structure may contain
937 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
938 present unless the new PKCS7_NO_CRL flag is asserted.
941 *) Extend ASN1 oid configuration module. It now additionally accepts the
944 shortName = some long name, 1.2.3.4
947 *) Reimplemented the BN_CTX implementation. There is now no more static
948 limitation on the number of variables it can handle nor the depth of the
949 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
950 information can now expand as required, and rather than having a single
951 static array of bignums, BN_CTX now uses a linked-list of such arrays
952 allowing it to expand on demand whilst maintaining the usefulness of
956 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
957 to allow all RSA operations to function using a single BN_CTX.
960 *) Preliminary support for certificate policy evaluation and checking. This
961 is initially intended to pass the tests outlined in "Conformance Testing
962 of Relying Party Client Certificate Path Processing Logic" v1.07.
965 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
966 remained unused and not that useful. A variety of other little bignum
967 tweaks and fixes have also been made continuing on from the audit (see
971 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
972 associated ASN1, EVP and SSL functions and old ASN1 macros.
975 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
976 and this should never fail. So the return value from the use of
977 BN_set_word() (which can fail due to needless expansion) is now deprecated;
978 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
981 *) BN_CTX_get() should return zero-valued bignums, providing the same
982 initialised value as BN_new().
983 [Geoff Thorpe, suggested by Ulf Möller]
985 *) Support for inhibitAnyPolicy certificate extension.
988 *) An audit of the BIGNUM code is underway, for which debugging code is
989 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
990 is considered valid when processing BIGNUMs, and causes execution to
991 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
992 further steps are taken to deliberately pollute unused data in BIGNUM
993 structures to try and expose faulty code further on. For now, openssl will
994 (in its default mode of operation) continue to tolerate the inconsistent
995 forms that it has tolerated in the past, but authors and packagers should
996 consider trying openssl and their own applications when compiled with
997 these debugging symbols defined. It will help highlight potential bugs in
998 their own code, and will improve the test coverage for OpenSSL itself. At
999 some point, these tighter rules will become openssl's default to improve
1000 maintainability, though the assert()s and other overheads will remain only
1001 in debugging configurations. See bn.h for more details.
1002 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1004 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1005 that can only be obtained through BN_CTX_new() (which implicitly
1006 initialises it). The presence of this function only made it possible
1007 to overwrite an existing structure (and cause memory leaks).
1010 *) Because of the callback-based approach for implementing LHASH as a
1011 template type, lh_insert() adds opaque objects to hash-tables and
1012 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1013 to clean up those corresponding objects before destroying the hash table
1014 (and losing the object pointers). So some over-zealous constifications in
1015 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1016 objects as "const" and the lh_doall[_arg] callback wrappers are not
1017 prototyped to have "const" restrictions on the object pointers they are
1018 given (and so aren't required to cast them away any more).
1021 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1022 (speed) prefers to use its own implementation. The two implementations
1023 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1024 its object type properly exposed (MS_TM) instead of casting to/from "char
1025 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1026 aren't necessarily the greatest nomenclatures - but this is what was used
1027 internally to the implementation so I've used that for now.
1030 *) Ensure that deprecated functions do not get compiled when
1031 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1032 the self-tests were still using deprecated key-generation functions so
1033 these have been updated also.
1036 *) Reorganise PKCS#7 code to separate the digest location functionality
1037 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1038 New function PKCS7_set_digest() to set the digest type for PKCS#7
1039 digestedData type. Add additional code to correctly generate the
1040 digestedData type and add support for this type in PKCS7 initialization
1044 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1045 structure of type "other".
1048 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1049 sure the loop does correctly stop and breaking ("division by zero")
1050 modulus operations are not performed. The (pre-generated) prime
1051 table crypto/bn/bn_prime.h was already correct, but it could not be
1052 re-generated on some platforms because of the "division by zero"
1053 situation in the script.
1054 [Ralf S. Engelschall]
1056 *) Update support for ECC-based TLS ciphersuites according to
1057 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1058 SHA-1 now is only used for "small" curves (where the
1059 representation of a field element takes up to 24 bytes); for
1060 larger curves, the field element resulting from ECDH is directly
1061 used as premaster secret.
1062 [Douglas Stebila (Sun Microsystems Laboratories)]
1064 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1065 curve secp160r1 to the tests.
1066 [Douglas Stebila (Sun Microsystems Laboratories)]
1068 *) Add the possibility to load symbols globally with DSO.
1069 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1071 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1072 control of the error stack.
1075 *) Add support for STORE in ENGINE.
1078 *) Add the STORE type. The intention is to provide a common interface
1079 to certificate and key stores, be they simple file-based stores, or
1080 HSM-type store, or LDAP stores, or...
1081 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1084 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1085 pass a list of arguments to any function as well as provide a way
1086 for a function to pass data back to the caller.
1089 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1090 works like BUF_strdup() but can be used to duplicate a portion of
1091 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1095 *) Add the function sk_find_ex() which works like sk_find(), but will
1096 return an index to an element even if an exact match couldn't be
1097 found. The index is guaranteed to point at the element where the
1098 searched-for key would be inserted to preserve sorting order.
1101 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1102 takes an extra flags argument for optional functionality. Currently,
1103 the following flags are defined:
1105 OBJ_BSEARCH_VALUE_ON_NOMATCH
1106 This one gets OBJ_bsearch_ex() to return a pointer to the first
1107 element where the comparing function returns a negative or zero
1110 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1111 This one gets OBJ_bsearch_ex() to return a pointer to the first
1112 element where the comparing function returns zero. This is useful
1113 if there are more than one element where the comparing function
1117 *) Make it possible to create self-signed certificates with 'openssl ca'
1118 in such a way that the self-signed certificate becomes part of the
1119 CA database and uses the same mechanisms for serial number generation
1120 as all other certificate signing. The new flag '-selfsign' enables
1121 this functionality. Adapt CA.sh and CA.pl.in.
1124 *) Add functionality to check the public key of a certificate request
1125 against a given private. This is useful to check that a certificate
1126 request can be signed by that key (self-signing).
1129 *) Make it possible to have multiple active certificates with the same
1130 subject in the CA index file. This is done only if the keyword
1131 'unique_subject' is set to 'no' in the main CA section (default
1132 if 'CA_default') of the configuration file. The value is saved
1133 with the database itself in a separate index attribute file,
1134 named like the index file with '.attr' appended to the name.
1137 *) Generate muti valued AVAs using '+' notation in config files for
1141 *) Support for nameConstraints certificate extension.
1144 *) Support for policyConstraints certificate extension.
1147 *) Support for policyMappings certificate extension.
1150 *) Make sure the default DSA_METHOD implementation only uses its
1151 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1152 and change its own handlers to be NULL so as to remove unnecessary
1153 indirection. This lets alternative implementations fallback to the
1154 default implementation more easily.
1157 *) Support for directoryName in GeneralName related extensions
1161 *) Make it possible to link applications using Makefile.shared.
1162 Make that possible even when linking against static libraries!
1165 *) Support for single pass processing for S/MIME signing. This now
1166 means that S/MIME signing can be done from a pipe, in addition
1167 cleartext signing (multipart/signed type) is effectively streaming
1168 and the signed data does not need to be all held in memory.
1170 This is done with a new flag PKCS7_STREAM. When this flag is set
1171 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1172 is done after the data is output (and digests calculated) in
1173 SMIME_write_PKCS7().
1176 *) Add full support for -rpath/-R, both in shared libraries and
1177 applications, at least on the platforms where it's known how
1181 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1182 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1183 will now compute a table of multiples of the generator that
1184 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1185 faster (notably in the case of a single point multiplication,
1186 scalar * generator).
1187 [Nils Larsch, Bodo Moeller]
1189 *) IPv6 support for certificate extensions. The various extensions
1190 which use the IP:a.b.c.d can now take IPv6 addresses using the
1191 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1195 *) Added an ENGINE that implements RSA by performing private key
1196 exponentiations with the GMP library. The conversions to and from
1197 GMP's mpz_t format aren't optimised nor are any montgomery forms
1198 cached, and on x86 it appears OpenSSL's own performance has caught up.
1199 However there are likely to be other architectures where GMP could
1200 provide a boost. This ENGINE is not built in by default, but it can be
1201 specified at Configure time and should be accompanied by the necessary
1202 linker additions, eg;
1203 ./config -DOPENSSL_USE_GMP -lgmp
1206 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1207 testing availability of engines with "-t" - the old behaviour is
1208 produced by increasing the feature's verbosity with "-tt".
1211 *) ECDSA routines: under certain error conditions uninitialized BN objects
1212 could be freed. Solution: make sure initialization is performed early
1213 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1217 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1218 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1219 software implementations. For DSA and DH, parameter generation can
1220 also be overriden by providing the appropriate method callbacks.
1223 *) Change the "progress" mechanism used in key-generation and
1224 primality testing to functions that take a new BN_GENCB pointer in
1225 place of callback/argument pairs. The new API functions have "_ex"
1226 postfixes and the older functions are reimplemented as wrappers for
1227 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1228 declarations of the old functions to help (graceful) attempts to
1229 migrate to the new functions. Also, the new key-generation API
1230 functions operate on a caller-supplied key-structure and return
1231 success/failure rather than returning a key or NULL - this is to
1232 help make "keygen" another member function of RSA_METHOD etc.
1234 Example for using the new callback interface:
1236 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1240 BN_GENCB_set(&my_cb, my_callback, my_arg);
1242 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1243 /* For the meaning of a, b in calls to my_callback(), see the
1244 * documentation of the function that calls the callback.
1245 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1246 * my_callback should return 1 if it wants BN_is_prime_ex()
1247 * to continue, or 0 to stop.
1252 *) Change the ZLIB compression method to be stateful, and make it
1253 available to TLS with the number defined in
1254 draft-ietf-tls-compression-04.txt.
1257 *) Add the ASN.1 structures and functions for CertificatePair, which
1258 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1260 CertificatePair ::= SEQUENCE {
1261 forward [0] Certificate OPTIONAL,
1262 reverse [1] Certificate OPTIONAL,
1263 -- at least one of the pair shall be present -- }
1265 Also implement the PEM functions to read and write certificate
1266 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1268 This needed to be defined, mostly for the sake of the LDAP
1269 attribute crossCertificatePair, but may prove useful elsewhere as
1273 *) Make it possible to inhibit symlinking of shared libraries in
1274 Makefile.shared, for Cygwin's sake.
1277 *) Extend the BIGNUM API by creating a function
1278 void BN_set_negative(BIGNUM *a, int neg);
1279 and a macro that behave like
1280 int BN_is_negative(const BIGNUM *a);
1282 to avoid the need to access 'a->neg' directly in applications.
1285 *) Implement fast modular reduction for pseudo-Mersenne primes
1286 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1287 EC_GROUP_new_curve_GFp() will now automatically use this
1289 [Nils Larsch <nla@trustcenter.de>]
1291 *) Add new lock type (CRYPTO_LOCK_BN).
1294 *) Change the ENGINE framework to automatically load engines
1295 dynamically from specific directories unless they could be
1296 found to already be built in or loaded. Move all the
1297 current engines except for the cryptodev one to a new
1299 The engines in engines/ are built as shared libraries if
1300 the "shared" options was given to ./Configure or ./config.
1301 Otherwise, they are inserted in libcrypto.a.
1302 /usr/local/ssl/engines is the default directory for dynamic
1303 engines, but that can be overriden at configure time through
1304 the usual use of --prefix and/or --openssldir, and at run
1305 time with the environment variable OPENSSL_ENGINES.
1306 [Geoff Thorpe and Richard Levitte]
1308 *) Add Makefile.shared, a helper makefile to build shared
1309 libraries. Addapt Makefile.org.
1312 *) Add version info to Win32 DLLs.
1313 [Peter 'Luna' Runestig" <peter@runestig.com>]
1315 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1316 can be added using this API to created arbitrary PKCS#12
1317 files while avoiding the low level API.
1319 New options to PKCS12_create(), key or cert can be NULL and
1320 will then be omitted from the output file. The encryption
1321 algorithm NIDs can be set to -1 for no encryption, the mac
1322 iteration count can be set to 0 to omit the mac.
1324 Enhance pkcs12 utility by making the -nokeys and -nocerts
1325 options work when creating a PKCS#12 file. New option -nomac
1326 to omit the mac, NONE can be set for an encryption algorithm.
1327 New code is modified to use the enhanced PKCS12_create()
1328 instead of the low level API.
1331 *) Extend ASN1 encoder to support indefinite length constructed
1332 encoding. This can output sequences tags and octet strings in
1333 this form. Modify pk7_asn1.c to support indefinite length
1334 encoding. This is experimental and needs additional code to
1335 be useful, such as an ASN1 bio and some enhanced streaming
1338 Extend template encode functionality so that tagging is passed
1339 down to the template encoder.
1342 *) Let 'openssl req' fail if an argument to '-newkey' is not
1343 recognized instead of using RSA as a default.
1346 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1347 As these are not official, they are not included in "ALL";
1348 the "ECCdraft" ciphersuite group alias can be used to select them.
1349 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1351 *) Add ECDH engine support.
1352 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1354 *) Add ECDH in new directory crypto/ecdh/.
1355 [Douglas Stebila (Sun Microsystems Laboratories)]
1357 *) Let BN_rand_range() abort with an error after 100 iterations
1358 without success (which indicates a broken PRNG).
1361 *) Change BN_mod_sqrt() so that it verifies that the input value
1362 is really the square of the return value. (Previously,
1363 BN_mod_sqrt would show GIGO behaviour.)
1366 *) Add named elliptic curves over binary fields from X9.62, SECG,
1367 and WAP/WTLS; add OIDs that were still missing.
1369 [Sheueling Chang Shantz and Douglas Stebila
1370 (Sun Microsystems Laboratories)]
1372 *) Extend the EC library for elliptic curves over binary fields
1373 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1376 EC_GF2m_simple_method
1380 EC_GROUP_new_curve_GF2m
1381 EC_GROUP_set_curve_GF2m
1382 EC_GROUP_get_curve_GF2m
1383 EC_POINT_set_affine_coordinates_GF2m
1384 EC_POINT_get_affine_coordinates_GF2m
1385 EC_POINT_set_compressed_coordinates_GF2m
1387 Point compression for binary fields is disabled by default for
1388 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1391 As binary polynomials are represented as BIGNUMs, various members
1392 of the EC_GROUP and EC_POINT data structures can be shared
1393 between the implementations for prime fields and binary fields;
1394 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1395 are essentially identical to their ..._GFp counterparts.
1396 (For simplicity, the '..._GFp' prefix has been dropped from
1397 various internal method names.)
1399 An internal 'field_div' method (similar to 'field_mul' and
1400 'field_sqr') has been added; this is used only for binary fields.
1402 [Sheueling Chang Shantz and Douglas Stebila
1403 (Sun Microsystems Laboratories)]
1405 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1406 through methods ('mul', 'precompute_mult').
1408 The generic implementations (now internally called 'ec_wNAF_mul'
1409 and 'ec_wNAF_precomputed_mult') remain the default if these
1410 methods are undefined.
1412 [Sheueling Chang Shantz and Douglas Stebila
1413 (Sun Microsystems Laboratories)]
1415 *) New function EC_GROUP_get_degree, which is defined through
1416 EC_METHOD. For curves over prime fields, this returns the bit
1417 length of the modulus.
1419 [Sheueling Chang Shantz and Douglas Stebila
1420 (Sun Microsystems Laboratories)]
1422 *) New functions EC_GROUP_dup, EC_POINT_dup.
1423 (These simply call ..._new and ..._copy).
1425 [Sheueling Chang Shantz and Douglas Stebila
1426 (Sun Microsystems Laboratories)]
1428 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1429 Polynomials are represented as BIGNUMs (where the sign bit is not
1430 used) in the following functions [macros]:
1433 BN_GF2m_sub [= BN_GF2m_add]
1434 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1435 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1436 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1438 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1439 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1440 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1441 BN_GF2m_cmp [= BN_ucmp]
1443 (Note that only the 'mod' functions are actually for fields GF(2^m).
1444 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1446 For some functions, an the irreducible polynomial defining a
1447 field can be given as an 'unsigned int[]' with strictly
1448 decreasing elements giving the indices of those bits that are set;
1449 i.e., p[] represents the polynomial
1450 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1452 p[0] > p[1] > ... > p[k] = 0.
1453 This applies to the following functions:
1458 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1459 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1461 BN_GF2m_mod_sqrt_arr
1462 BN_GF2m_mod_solve_quad_arr
1466 Conversion can be performed by the following functions:
1471 bntest.c has additional tests for binary polynomial arithmetic.
1473 Two implementations for BN_GF2m_mod_div() are available.
1474 The default algorithm simply uses BN_GF2m_mod_inv() and
1475 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1476 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1477 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1479 [Sheueling Chang Shantz and Douglas Stebila
1480 (Sun Microsystems Laboratories)]
1482 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1483 functionality is disabled at compile-time.
1484 [Douglas Stebila <douglas.stebila@sun.com>]
1486 *) Change default behaviour of 'openssl asn1parse' so that more
1487 information is visible when viewing, e.g., a certificate:
1489 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1490 mode the content of non-printable OCTET STRINGs is output in a
1491 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1492 avoid the appearance of a printable string.
1493 [Nils Larsch <nla@trustcenter.de>]
1495 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1497 EC_GROUP_set_asn1_flag()
1498 EC_GROUP_get_asn1_flag()
1499 EC_GROUP_set_point_conversion_form()
1500 EC_GROUP_get_point_conversion_form()
1501 These control ASN1 encoding details:
1502 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1503 has been set to OPENSSL_EC_NAMED_CURVE.
1504 - Points are encoded in uncompressed form by default; options for
1505 asn1_for are as for point2oct, namely
1506 POINT_CONVERSION_COMPRESSED
1507 POINT_CONVERSION_UNCOMPRESSED
1508 POINT_CONVERSION_HYBRID
1510 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1513 EC_GROUP_get0_seed()
1514 EC_GROUP_get_seed_len()
1515 This is used only for ASN1 purposes (so far).
1516 [Nils Larsch <nla@trustcenter.de>]
1518 *) Add 'field_type' member to EC_METHOD, which holds the NID
1519 of the appropriate field type OID. The new function
1520 EC_METHOD_get_field_type() returns this value.
1521 [Nils Larsch <nla@trustcenter.de>]
1526 EC_POINT_point2hex()
1527 EC_POINT_hex2point()
1528 providing useful interfaces to EC_POINT_point2oct() and
1529 EC_POINT_oct2point().
1530 [Nils Larsch <nla@trustcenter.de>]
1532 *) Change internals of the EC library so that the functions
1533 EC_GROUP_set_generator()
1534 EC_GROUP_get_generator()
1535 EC_GROUP_get_order()
1536 EC_GROUP_get_cofactor()
1537 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1538 to methods, which would lead to unnecessary code duplication when
1539 adding different types of curves.
1540 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1542 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1543 arithmetic, and such that modified wNAFs are generated
1544 (which avoid length expansion in many cases).
1547 *) Add a function EC_GROUP_check_discriminant() (defined via
1548 EC_METHOD) that verifies that the curve discriminant is non-zero.
1550 Add a function EC_GROUP_check() that makes some sanity tests
1551 on a EC_GROUP, its generator and order. This includes
1552 EC_GROUP_check_discriminant().
1553 [Nils Larsch <nla@trustcenter.de>]
1555 *) Add ECDSA in new directory crypto/ecdsa/.
1557 Add applications 'openssl ecparam' and 'openssl ecdsa'
1558 (these are based on 'openssl dsaparam' and 'openssl dsa').
1560 ECDSA support is also included in various other files across the
1561 library. Most notably,
1562 - 'openssl req' now has a '-newkey ecdsa:file' option;
1563 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1564 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1565 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1566 them suitable for ECDSA where domain parameters must be
1567 extracted before the specific public key;
1568 - ECDSA engine support has been added.
1569 [Nils Larsch <nla@trustcenter.de>]
1571 *) Include some named elliptic curves, and add OIDs from X9.62,
1572 SECG, and WAP/WTLS. Each curve can be obtained from the new
1574 EC_GROUP_new_by_curve_name(),
1575 and the list of available named curves can be obtained with
1576 EC_get_builtin_curves().
1577 Also add a 'curve_name' member to EC_GROUP objects, which can be
1579 EC_GROUP_set_curve_name()
1580 EC_GROUP_get_curve_name()
1581 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1583 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1584 was actually never needed) and in BN_mul(). The removal in BN_mul()
1585 required a small change in bn_mul_part_recursive() and the addition
1586 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1587 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1588 bn_sub_words() and bn_add_words() except they take arrays with
1592 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1594 *) In the SSL/TLS server implementation, be strict about session ID
1595 context matching (which matters if an application uses a single
1596 external cache for different purposes). Previously,
1597 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1598 set. This did ensure strict client verification, but meant that,
1599 with applications using a single external cache for quite
1600 different requirements, clients could circumvent ciphersuite
1601 restrictions for a given session ID context by starting a session
1602 in a different context.
1605 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1607 *) Cleanse PEM buffers before freeing them since they may contain
1609 [Benjamin Bennett <ben@psc.edu>]
1611 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1612 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1613 authentication-only ciphersuites.
1616 *) Since AES128 and AES256 share a single mask bit in the logic of
1617 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1618 kludge to work properly if AES128 is available and AES256 isn't.
1621 *) Expand security boundary to match 1.1.1 module.
1624 *) Remove redundant features: hash file source, editing of test vectors
1625 modify fipsld to use external fips_premain.c signature.
1628 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1629 run algorithm test programs.
1632 *) Make algorithm test programs more tolerant of whitespace.
1635 *) Have SSL/TLS server implementation tolerate "mismatched" record
1636 protocol version while receiving ClientHello even if the
1637 ClientHello is fragmented. (The server can't insist on the
1638 particular protocol version it has chosen before the ServerHello
1639 message has informed the client about his choice.)
1642 *) Load error codes if they are not already present instead of using a
1643 static variable. This allows them to be cleanly unloaded and reloaded.
1646 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1648 *) Introduce limits to prevent malicious keys being able to
1649 cause a denial of service. (CVE-2006-2940)
1650 [Steve Henson, Bodo Moeller]
1652 *) Fix ASN.1 parsing of certain invalid structures that can result
1653 in a denial of service. (CVE-2006-2937) [Steve Henson]
1655 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1656 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1658 *) Fix SSL client code which could crash if connecting to a
1659 malicious SSLv2 server. (CVE-2006-4343)
1660 [Tavis Ormandy and Will Drewry, Google Security Team]
1662 *) Change ciphersuite string processing so that an explicit
1663 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1664 will no longer include "AES128-SHA"), and any other similar
1665 ciphersuite (same bitmap) from *other* protocol versions (so that
1666 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1667 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1668 changes from 0.9.8b and 0.9.8d.
1671 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1673 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1674 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1676 *) Change the Unix randomness entropy gathering to use poll() when
1677 possible instead of select(), since the latter has some
1678 undesirable limitations.
1679 [Darryl Miles via Richard Levitte and Bodo Moeller]
1681 *) Disable rogue ciphersuites:
1683 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1684 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1685 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1687 The latter two were purportedly from
1688 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1691 Also deactive the remaining ciphersuites from
1692 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1693 unofficial, and the ID has long expired.
1696 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1697 dual-core machines) and other potential thread-safety issues.
1700 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1702 *) Adapt fipsld and the build system to link against the validated FIPS
1703 module in FIPS mode.
1706 *) Fixes for VC++ 2005 build under Windows.
1709 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1710 from a Windows bash shell such as MSYS. It is autodetected from the
1711 "config" script when run from a VC++ environment. Modify standard VC++
1712 build to use fipscanister.o from the GNU make build.
1715 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1717 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1718 The value now differs depending on if you build for FIPS or not.
1719 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1720 safely run with a non-FIPSed libcrypto, as it may crash because of
1721 the difference induced by this change.
1724 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1726 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1727 (part of SSL_OP_ALL). This option used to disable the
1728 countermeasure against man-in-the-middle protocol-version
1729 rollback in the SSL 2.0 server implementation, which is a bad
1730 idea. (CVE-2005-2969)
1732 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1733 for Information Security, National Institute of Advanced Industrial
1734 Science and Technology [AIST], Japan)]
1736 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1737 mainly for FIPS compliance and not fully integrated at this stage.
1740 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1741 the exponentiation using a fixed-length exponent. (Otherwise,
1742 the information leaked through timing could expose the secret key
1743 after many signatures; cf. Bleichenbacher's attack on DSA with
1747 *) Make a new fixed-window mod_exp implementation the default for
1748 RSA, DSA, and DH private-key operations so that the sequence of
1749 squares and multiplies and the memory access pattern are
1750 independent of the particular secret key. This will mitigate
1751 cache-timing and potential related attacks.
1753 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1754 and this is automatically used by BN_mod_exp_mont() if the new flag
1755 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1756 will use this BN flag for private exponents unless the flag
1757 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1758 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1760 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1762 *) Change the client implementation for SSLv23_method() and
1763 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1764 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1765 (Previously, the SSL 2.0 backwards compatible Client Hello
1766 message format would be used even with SSL_OP_NO_SSLv2.)
1769 *) Add support for smime-type MIME parameter in S/MIME messages which some
1773 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1774 a threadsafe manner. Modify rsa code to use new function and add calls
1775 to dsa and dh code (which had race conditions before).
1778 *) Include the fixed error library code in the C error file definitions
1779 instead of fixing them up at runtime. This keeps the error code
1780 structures constant.
1783 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1785 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1788 *) Fixes for newer kerberos headers. NB: the casts are needed because
1789 the 'length' field is signed on one version and unsigned on another
1790 with no (?) obvious way to tell the difference, without these VC++
1791 complains. Also the "definition" of FAR (blank) is no longer included
1792 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1793 some needed definitions.
1796 *) Undo Cygwin change.
1799 *) Added support for proxy certificates according to RFC 3820.
1800 Because they may be a security thread to unaware applications,
1801 they must be explicitely allowed in run-time. See
1802 docs/HOWTO/proxy_certificates.txt for further information.
1805 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1807 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1808 server and client random values. Previously
1809 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1810 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1812 This change has negligible security impact because:
1814 1. Server and client random values still have 24 bytes of pseudo random
1817 2. Server and client random values are sent in the clear in the initial
1820 3. The master secret is derived using the premaster secret (48 bytes in
1821 size for static RSA ciphersuites) as well as client server and random
1824 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1827 [Stephen Henson, reported by UK NISCC]
1829 *) Use Windows randomness collection on Cygwin.
1832 *) Fix hang in EGD/PRNGD query when communication socket is closed
1833 prematurely by EGD/PRNGD.
1834 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1836 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1839 *) Back-port of selected performance improvements from development
1840 branch, as well as improved support for PowerPC platforms.
1843 *) Add lots of checks for memory allocation failure, error codes to indicate
1844 failure and freeing up memory if a failure occurs.
1845 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1847 *) Add new -passin argument to dgst.
1850 *) Perform some character comparisons of different types in X509_NAME_cmp:
1851 this is needed for some certificates that reencode DNs into UTF8Strings
1852 (in violation of RFC3280) and can't or wont issue name rollover
1856 *) Make an explicit check during certificate validation to see that
1857 the CA setting in each certificate on the chain is correct. As a
1858 side effect always do the following basic checks on extensions,
1859 not just when there's an associated purpose to the check:
1861 - if there is an unhandled critical extension (unless the user
1862 has chosen to ignore this fault)
1863 - if the path length has been exceeded (if one is set at all)
1864 - that certain extensions fit the associated purpose (if one has
1868 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1870 *) Avoid a race condition when CRLs are checked in a multi threaded
1871 environment. This would happen due to the reordering of the revoked
1872 entries during signature checking and serial number lookup. Now the
1873 encoding is cached and the serial number sort performed under a lock.
1874 Add new STACK function sk_is_sorted().
1877 *) Add Delta CRL to the extension code.
1880 *) Various fixes to s3_pkt.c so alerts are sent properly.
1881 [David Holmes <d.holmes@f5.com>]
1883 *) Reduce the chances of duplicate issuer name and serial numbers (in
1884 violation of RFC3280) using the OpenSSL certificate creation utilities.
1885 This is done by creating a random 64 bit value for the initial serial
1886 number when a serial number file is created or when a self signed
1887 certificate is created using 'openssl req -x509'. The initial serial
1888 number file is created using 'openssl x509 -next_serial' in CA.pl
1889 rather than being initialized to 1.
1892 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1894 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1895 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1896 [Joe Orton, Steve Henson]
1898 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1900 [Joe Orton, Steve Henson]
1902 *) Make it possible to have multiple active certificates with the same
1903 subject in the CA index file. This is done only if the keyword
1904 'unique_subject' is set to 'no' in the main CA section (default
1905 if 'CA_default') of the configuration file. The value is saved
1906 with the database itself in a separate index attribute file,
1907 named like the index file with '.attr' appended to the name.
1910 *) X509 verify fixes. Disable broken certificate workarounds when
1911 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1912 keyUsage extension present. Don't accept CRLs with unhandled critical
1913 extensions: since verify currently doesn't process CRL extensions this
1914 rejects a CRL with *any* critical extensions. Add new verify error codes
1918 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1919 A clarification of RFC2560 will require the use of OCTET STRINGs and
1920 some implementations cannot handle the current raw format. Since OpenSSL
1921 copies and compares OCSP nonces as opaque blobs without any attempt at
1922 parsing them this should not create any compatibility issues.
1925 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1926 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1927 this HMAC (and other) operations are several times slower than OpenSSL
1931 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1932 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1934 *) Use the correct content when signing type "other".
1937 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1939 *) Fix various bugs revealed by running the NISCC test suite:
1941 Stop out of bounds reads in the ASN1 code when presented with
1942 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1944 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1946 If verify callback ignores invalid public key errors don't try to check
1947 certificate signature with the NULL public key.
1951 *) New -ignore_err option in ocsp application to stop the server
1952 exiting on the first error in a request.
1955 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1956 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1960 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1961 extra data after the compression methods not only for TLS 1.0
1962 but also for SSL 3.0 (as required by the specification).
1963 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1965 *) Change X509_certificate_type() to mark the key as exported/exportable
1966 when it's 512 *bits* long, not 512 bytes.
1969 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1970 blocks during encryption.
1973 *) Various fixes to base64 BIO and non blocking I/O. On write
1974 flushes were not handled properly if the BIO retried. On read
1975 data was not being buffered properly and had various logic bugs.
1976 This also affects blocking I/O when the data being decoded is a
1980 *) Various S/MIME bugfixes and compatibility changes:
1981 output correct application/pkcs7 MIME type if
1982 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1983 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1984 of files as .eml work). Correctly handle very long lines in MIME
1988 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1990 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1991 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1992 a protocol version number mismatch like a decryption error
1993 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1996 *) Turn on RSA blinding by default in the default implementation
1997 to avoid a timing attack. Applications that don't want it can call
1998 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1999 They would be ill-advised to do so in most cases.
2000 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2002 *) Change RSA blinding code so that it works when the PRNG is not
2003 seeded (in this case, the secret RSA exponent is abused as
2004 an unpredictable seed -- if it is not unpredictable, there
2005 is no point in blinding anyway). Make RSA blinding thread-safe
2006 by remembering the creator's thread ID in rsa->blinding and
2007 having all other threads use local one-time blinding factors
2008 (this requires more computation than sharing rsa->blinding, but
2009 avoids excessive locking; and if an RSA object is not shared
2010 between threads, blinding will still be very fast).
2013 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2014 ENGINE as defaults for all supported algorithms irrespective of
2015 the 'flags' parameter. 'flags' is now honoured, so applications
2016 should make sure they are passing it correctly.
2019 *) Target "mingw" now allows native Windows code to be generated in
2020 the Cygwin environment as well as with the MinGW compiler.
2023 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2025 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2026 via timing by performing a MAC computation even if incorrrect
2027 block cipher padding has been found. This is a countermeasure
2028 against active attacks where the attacker has to distinguish
2029 between bad padding and a MAC verification error. (CVE-2003-0078)
2031 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2032 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2033 Martin Vuagnoux (EPFL, Ilion)]
2035 *) Make the no-err option work as intended. The intention with no-err
2036 is not to have the whole error stack handling routines removed from
2037 libcrypto, it's only intended to remove all the function name and
2038 reason texts, thereby removing some of the footprint that may not
2039 be interesting if those errors aren't displayed anyway.
2041 NOTE: it's still possible for any application or module to have it's
2042 own set of error texts inserted. The routines are there, just not
2043 used by default when no-err is given.
2046 *) Add support for FreeBSD on IA64.
2047 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2049 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2050 Kerberos function mit_des_cbc_cksum(). Before this change,
2051 the value returned by DES_cbc_cksum() was like the one from
2052 mit_des_cbc_cksum(), except the bytes were swapped.
2053 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2055 *) Allow an application to disable the automatic SSL chain building.
2056 Before this a rather primitive chain build was always performed in
2057 ssl3_output_cert_chain(): an application had no way to send the
2058 correct chain if the automatic operation produced an incorrect result.
2060 Now the chain builder is disabled if either:
2062 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2064 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2066 The reasoning behind this is that an application would not want the
2067 auto chain building to take place if extra chain certificates are
2068 present and it might also want a means of sending no additional
2069 certificates (for example the chain has two certificates and the
2073 *) Add the possibility to build without the ENGINE framework.
2074 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2076 *) Under Win32 gmtime() can return NULL: check return value in
2077 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2080 *) DSA routines: under certain error conditions uninitialized BN objects
2081 could be freed. Solution: make sure initialization is performed early
2082 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2083 Nils Larsch <nla@trustcenter.de> via PR#459)
2086 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2087 checked on reconnect on the client side, therefore session resumption
2088 could still fail with a "ssl session id is different" error. This
2089 behaviour is masked when SSL_OP_ALL is used due to
2090 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2091 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2092 followup to PR #377.
2095 *) IA-32 assembler support enhancements: unified ELF targets, support
2096 for SCO/Caldera platforms, fix for Cygwin shared build.
2099 *) Add support for FreeBSD on sparc64. As a consequence, support for
2100 FreeBSD on non-x86 processors is separate from x86 processors on
2101 the config script, much like the NetBSD support.
2102 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2104 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2106 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2109 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2110 code (06) was taken as the first octet of the session ID and the last
2111 octet was ignored consequently. As a result SSLv2 client side session
2112 caching could not have worked due to the session ID mismatch between
2114 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2118 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2119 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2123 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2124 seems that in spite of existing for more than a year, many application
2125 author have done nothing to provide the necessary callbacks, which
2126 means that this particular engine will not work properly anywhere.
2127 This is a very unfortunate situation which forces us, in the name
2128 of usability, to give the hw_ncipher.c a static lock, which is part
2130 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2131 appear in 0.9.8 or later. We EXPECT application authors to have
2132 dealt properly with this when 0.9.8 is released (unless we actually
2133 make such changes in the libcrypto locking code that changes will
2134 have to be made anyway).
2137 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2138 octets have been read, EOF or an error occurs. Without this change
2139 some truncated ASN1 structures will not produce an error.
2142 *) Disable Heimdal support, since it hasn't been fully implemented.
2143 Still give the possibility to force the use of Heimdal, but with
2144 warnings and a request that patches get sent to openssl-dev.
2147 *) Add the VC-CE target, introduce the WINCE sysname, and add
2148 INSTALL.WCE and appropriate conditionals to make it build.
2149 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2151 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2152 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2153 edit numbers of the version.
2154 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2156 *) Introduce safe string copy and catenation functions
2157 (BUF_strlcpy() and BUF_strlcat()).
2158 [Ben Laurie (CHATS) and Richard Levitte]
2160 *) Avoid using fixed-size buffers for one-line DNs.
2161 [Ben Laurie (CHATS)]
2163 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2164 resizing buffers containing secrets, and use where appropriate.
2165 [Ben Laurie (CHATS)]
2167 *) Avoid using fixed size buffers for configuration file location.
2168 [Ben Laurie (CHATS)]
2170 *) Avoid filename truncation for various CA files.
2171 [Ben Laurie (CHATS)]
2173 *) Use sizeof in preference to magic numbers.
2174 [Ben Laurie (CHATS)]
2176 *) Avoid filename truncation in cert requests.
2177 [Ben Laurie (CHATS)]
2179 *) Add assertions to check for (supposedly impossible) buffer
2181 [Ben Laurie (CHATS)]
2183 *) Don't cache truncated DNS entries in the local cache (this could
2184 potentially lead to a spoofing attack).
2185 [Ben Laurie (CHATS)]
2187 *) Fix various buffers to be large enough for hex/decimal
2188 representations in a platform independent manner.
2189 [Ben Laurie (CHATS)]
2191 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2192 resizing buffers containing secrets, and use where appropriate.
2193 [Ben Laurie (CHATS)]
2195 *) Add BIO_indent() to avoid much slightly worrying code to do
2197 [Ben Laurie (CHATS)]
2199 *) Convert sprintf()/BIO_puts() to BIO_printf().
2200 [Ben Laurie (CHATS)]
2202 *) buffer_gets() could terminate with the buffer only half
2204 [Ben Laurie (CHATS)]
2206 *) Add assertions to prevent user-supplied crypto functions from
2207 overflowing internal buffers by having large block sizes, etc.
2208 [Ben Laurie (CHATS)]
2210 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2212 [Ben Laurie (CHATS)]
2214 *) Eliminate unused copy of key in RC4.
2215 [Ben Laurie (CHATS)]
2217 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2218 [Ben Laurie (CHATS)]
2220 *) Fix off-by-one error in EGD path.
2221 [Ben Laurie (CHATS)]
2223 *) If RANDFILE path is too long, ignore instead of truncating.
2224 [Ben Laurie (CHATS)]
2226 *) Eliminate unused and incorrectly sized X.509 structure
2228 [Ben Laurie (CHATS)]
2230 *) Eliminate unused and dangerous function knumber().
2231 [Ben Laurie (CHATS)]
2233 *) Eliminate unused and dangerous structure, KSSL_ERR.
2234 [Ben Laurie (CHATS)]
2236 *) Protect against overlong session ID context length in an encoded
2237 session object. Since these are local, this does not appear to be
2239 [Ben Laurie (CHATS)]
2241 *) Change from security patch (see 0.9.6e below) that did not affect
2242 the 0.9.6 release series:
2244 Remote buffer overflow in SSL3 protocol - an attacker could
2245 supply an oversized master key in Kerberos-enabled versions.
2247 [Ben Laurie (CHATS)]
2249 *) Change the SSL kerb5 codes to match RFC 2712.
2252 *) Make -nameopt work fully for req and add -reqopt switch.
2253 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2255 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2256 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2258 *) Make sure tests can be performed even if the corresponding algorithms
2259 have been removed entirely. This was also the last step to make
2260 OpenSSL compilable with DJGPP under all reasonable conditions.
2261 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2263 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2264 to allow version independent disabling of normally unselected ciphers,
2265 which may be activated as a side-effect of selecting a single cipher.
2267 (E.g., cipher list string "RSA" enables ciphersuites that are left
2268 out of "ALL" because they do not provide symmetric encryption.
2269 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2270 [Lutz Jaenicke, Bodo Moeller]
2272 *) Add appropriate support for separate platform-dependent build
2273 directories. The recommended way to make a platform-dependent
2274 build directory is the following (tested on Linux), maybe with
2277 # Place yourself outside of the OpenSSL source tree. In
2278 # this example, the environment variable OPENSSL_SOURCE
2279 # is assumed to contain the absolute OpenSSL source directory.
2280 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2281 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2282 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2283 mkdir -p `dirname $F`
2284 ln -s $OPENSSL_SOURCE/$F $F
2287 To be absolutely sure not to disturb the source tree, a "make clean"
2288 is a good thing. If it isn't successfull, don't worry about it,
2289 it probably means the source directory is very clean.
2292 *) Make sure any ENGINE control commands make local copies of string
2293 pointers passed to them whenever necessary. Otherwise it is possible
2294 the caller may have overwritten (or deallocated) the original string
2295 data when a later ENGINE operation tries to use the stored values.
2296 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2298 *) Improve diagnostics in file reading and command-line digests.
2299 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2301 *) Add AES modes CFB and OFB to the object database. Correct an
2302 error in AES-CFB decryption.
2305 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2306 allows existing EVP_CIPHER_CTX structures to be reused after
2307 calling EVP_*Final(). This behaviour is used by encryption
2308 BIOs and some applications. This has the side effect that
2309 applications must explicitly clean up cipher contexts with
2310 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2313 *) Check the values of dna and dnb in bn_mul_recursive before calling
2314 bn_mul_comba (a non zero value means the a or b arrays do not contain
2315 n2 elements) and fallback to bn_mul_normal if either is not zero.
2318 *) Fix escaping of non-ASCII characters when using the -subj option
2319 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2322 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2323 form for "surname", serialNumber has no short form.
2324 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2325 therefore remove "mail" short name for "internet 7".
2326 The OID for unique identifiers in X509 certificates is
2327 x500UniqueIdentifier, not uniqueIdentifier.
2328 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2331 *) Add an "init" command to the ENGINE config module and auto initialize
2332 ENGINEs. Without any "init" command the ENGINE will be initialized
2333 after all ctrl commands have been executed on it. If init=1 the
2334 ENGINE is initailized at that point (ctrls before that point are run
2335 on the uninitialized ENGINE and after on the initialized one). If
2336 init=0 then the ENGINE will not be iniatialized at all.
2339 *) Fix the 'app_verify_callback' interface so that the user-defined
2340 argument is actually passed to the callback: In the
2341 SSL_CTX_set_cert_verify_callback() prototype, the callback
2342 declaration has been changed from
2345 int (*cb)(X509_STORE_CTX *,void *);
2346 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2347 i=s->ctx->app_verify_callback(&ctx)
2348 has been changed into
2349 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2351 To update applications using SSL_CTX_set_cert_verify_callback(),
2352 a dummy argument can be added to their callback functions.
2353 [D. K. Smetters <smetters@parc.xerox.com>]
2355 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2356 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2358 *) Add and OPENSSL_LOAD_CONF define which will cause
2359 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2360 This allows older applications to transparently support certain
2361 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2362 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2363 load the config file and OPENSSL_add_all_algorithms_conf() which will
2364 always load it have also been added.
2367 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2368 Adjust NIDs and EVP layer.
2369 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2371 *) Config modules support in openssl utility.
2373 Most commands now load modules from the config file,
2374 though in a few (such as version) this isn't done
2375 because it couldn't be used for anything.
2377 In the case of ca and req the config file used is
2378 the same as the utility itself: that is the -config
2379 command line option can be used to specify an
2383 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2384 use "openssl_conf" if filename is NULL use default openssl config file.
2387 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2388 config section name. Add a new flag to tolerate a missing config file
2389 and move code to CONF_modules_load_file().
2392 *) Support for crypto accelerator cards from Accelerated Encryption
2393 Processing, www.aep.ie. (Use engine 'aep')
2394 The support was copied from 0.9.6c [engine] and adapted/corrected
2395 to work with the new engine framework.
2396 [AEP Inc. and Richard Levitte]
2398 *) Support for SureWare crypto accelerator cards from Baltimore
2399 Technologies. (Use engine 'sureware')
2400 The support was copied from 0.9.6c [engine] and adapted
2401 to work with the new engine framework.
2404 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2405 make the newer ENGINE framework commands for the CHIL engine work.
2406 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2408 *) Make it possible to produce shared libraries on ReliantUNIX.
2409 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2411 *) Add the configuration target debug-linux-ppro.
2412 Make 'openssl rsa' use the general key loading routines
2413 implemented in apps.c, and make those routines able to
2414 handle the key format FORMAT_NETSCAPE and the variant
2416 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2418 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2419 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2421 *) Add -keyform to rsautl, and document -engine.
2422 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2424 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2425 BIO_R_NO_SUCH_FILE error code rather than the generic
2426 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2429 *) Add new functions
2431 ERR_peek_last_error_line
2432 ERR_peek_last_error_line_data.
2433 These are similar to
2436 ERR_peek_error_line_data,
2437 but report on the latest error recorded rather than the first one
2438 still in the error queue.
2439 [Ben Laurie, Bodo Moeller]
2441 *) default_algorithms option in ENGINE config module. This allows things
2443 default_algorithms = ALL
2444 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2447 *) Prelminary ENGINE config module.
2450 *) New experimental application configuration code.
2453 *) Change the AES code to follow the same name structure as all other
2454 symmetric ciphers, and behave the same way. Move everything to
2455 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2456 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2458 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2459 [Ben Laurie and Theo de Raadt]
2461 *) Add option to output public keys in req command.
2462 [Massimiliano Pala madwolf@openca.org]
2464 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2465 (up to about 10% better than before for P-192 and P-224).
2468 *) New functions/macros
2470 SSL_CTX_set_msg_callback(ctx, cb)
2471 SSL_CTX_set_msg_callback_arg(ctx, arg)
2472 SSL_set_msg_callback(ssl, cb)
2473 SSL_set_msg_callback_arg(ssl, arg)
2475 to request calling a callback function
2477 void cb(int write_p, int version, int content_type,
2478 const void *buf, size_t len, SSL *ssl, void *arg)
2480 whenever a protocol message has been completely received
2481 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2482 protocol version according to which the SSL library interprets
2483 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2484 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2485 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2486 specification (change_cipher_spec(20), alert(21), handshake(22)).
2487 'buf' and 'len' point to the actual message, 'ssl' to the
2488 SSL object, and 'arg' is the application-defined value set by
2489 SSL[_CTX]_set_msg_callback_arg().
2491 'openssl s_client' and 'openssl s_server' have new '-msg' options
2492 to enable a callback that displays all protocol messages.
2495 *) Change the shared library support so shared libraries are built as
2496 soon as the corresponding static library is finished, and thereby get
2497 openssl and the test programs linked against the shared library.
2498 This still only happens when the keyword "shard" has been given to
2499 the configuration scripts.
2501 NOTE: shared library support is still an experimental thing, and
2502 backward binary compatibility is still not guaranteed.
2503 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2505 *) Add support for Subject Information Access extension.
2506 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2508 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2509 additional bytes when new memory had to be allocated, not just
2510 when reusing an existing buffer.
2513 *) New command line and configuration option 'utf8' for the req command.
2514 This allows field values to be specified as UTF8 strings.
2517 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2518 runs for the former and machine-readable output for the latter.
2521 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2522 of the e-mail address in the DN (i.e., it will go into a certificate
2523 extension only). The new configuration file option 'email_in_dn = no'
2524 has the same effect.
2525 [Massimiliano Pala madwolf@openca.org]
2527 *) Change all functions with names starting with des_ to be starting
2528 with DES_ instead. Add wrappers that are compatible with libdes,
2529 but are named _ossl_old_des_*. Finally, add macros that map the
2530 des_* symbols to the corresponding _ossl_old_des_* if libdes
2531 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2532 desired, the des_* symbols will be mapped to DES_*, with one
2535 Since we provide two compatibility mappings, the user needs to
2536 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2537 compatibility is desired. The default (i.e., when that macro
2538 isn't defined) is OpenSSL 0.9.6c compatibility.
2540 There are also macros that enable and disable the support of old
2541 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2542 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2543 are defined, the default will apply: to support the old des routines.
2545 In either case, one must include openssl/des.h to get the correct
2546 definitions. Do not try to just include openssl/des_old.h, that
2549 NOTE: This is a major break of an old API into a new one. Software
2550 authors are encouraged to switch to the DES_ style functions. Some
2551 time in the future, des_old.h and the libdes compatibility functions
2552 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2553 default), and then completely removed.
2556 *) Test for certificates which contain unsupported critical extensions.
2557 If such a certificate is found during a verify operation it is
2558 rejected by default: this behaviour can be overridden by either
2559 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2560 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2561 X509_supported_extension() has also been added which returns 1 if a
2562 particular extension is supported.
2565 *) Modify the behaviour of EVP cipher functions in similar way to digests
2566 to retain compatibility with existing code.
2569 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2570 compatibility with existing code. In particular the 'ctx' parameter does
2571 not have to be to be initialized before the call to EVP_DigestInit() and
2572 it is tidied up after a call to EVP_DigestFinal(). New function
2573 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2574 EVP_MD_CTX_copy() changed to not require the destination to be
2575 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2576 requires the destination to be valid.
2578 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2579 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2582 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2583 so that complete 'Handshake' protocol structures are kept in memory
2584 instead of overwriting 'msg_type' and 'length' with 'body' data.
2587 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2588 [Massimo Santin via Richard Levitte]
2590 *) Major restructuring to the underlying ENGINE code. This includes
2591 reduction of linker bloat, separation of pure "ENGINE" manipulation
2592 (initialisation, etc) from functionality dealing with implementations
2593 of specific crypto iterfaces. This change also introduces integrated
2594 support for symmetric ciphers and digest implementations - so ENGINEs
2595 can now accelerate these by providing EVP_CIPHER and EVP_MD
2596 implementations of their own. This is detailed in crypto/engine/README
2597 as it couldn't be adequately described here. However, there are a few
2598 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2599 were changed in the original introduction of ENGINE code have now
2600 reverted back - the hooking from this code to ENGINE is now a good
2601 deal more passive and at run-time, operations deal directly with
2602 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2603 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2604 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2605 they were not being used by the framework as there is no concept of a
2606 BIGNUM_METHOD and they could not be generalised to the new
2607 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2608 ENGINE_cpy() has been removed as it cannot be consistently defined in
2612 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2615 *) Change mkdef.pl to sort symbols that get the same entry number,
2616 and make sure the automatically generated functions ERR_load_*
2617 become part of libeay.num as well.
2620 *) New function SSL_renegotiate_pending(). This returns true once
2621 renegotiation has been requested (either SSL_renegotiate() call
2622 or HelloRequest/ClientHello receveived from the peer) and becomes
2623 false once a handshake has been completed.
2624 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2625 sends a HelloRequest, but does not ensure that a handshake takes
2626 place. SSL_renegotiate_pending() is useful for checking if the
2627 client has followed the request.)
2630 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2631 By default, clients may request session resumption even during
2632 renegotiation (if session ID contexts permit); with this option,
2633 session resumption is possible only in the first handshake.
2635 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2636 more bits available for options that should not be part of
2637 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2640 *) Add some demos for certificate and certificate request creation.
2643 *) Make maximum certificate chain size accepted from the peer application
2644 settable (SSL*_get/set_max_cert_list()), as proposed by
2645 "Douglas E. Engert" <deengert@anl.gov>.
2648 *) Add support for shared libraries for Unixware-7
2649 (Boyd Lynn Gerber <gerberb@zenez.com>).
2652 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2653 be done prior to destruction. Use this to unload error strings from
2654 ENGINEs that load their own error strings. NB: This adds two new API
2655 functions to "get" and "set" this destroy handler in an ENGINE.
2658 *) Alter all existing ENGINE implementations (except "openssl" and
2659 "openbsd") to dynamically instantiate their own error strings. This
2660 makes them more flexible to be built both as statically-linked ENGINEs
2661 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2662 Also, add stub code to each that makes building them as self-contained
2663 shared-libraries easier (see README.ENGINE).
2666 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2667 implementations into applications that are completely implemented in
2668 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2669 commands that can be used to configure what shared-library to load and
2670 to control aspects of the way it is handled. Also, made an update to
2671 the README.ENGINE file that brings its information up-to-date and
2672 provides some information and instructions on the "dynamic" ENGINE
2673 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2676 *) Make it possible to unload ranges of ERR strings with a new
2677 "ERR_unload_strings" function.
2680 *) Add a copy() function to EVP_MD.
2683 *) Make EVP_MD routines take a context pointer instead of just the
2684 md_data void pointer.
2687 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2688 that the digest can only process a single chunk of data
2689 (typically because it is provided by a piece of
2690 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2691 is only going to provide a single chunk of data, and hence the
2692 framework needn't accumulate the data for oneshot drivers.
2695 *) As with "ERR", make it possible to replace the underlying "ex_data"
2696 functions. This change also alters the storage and management of global
2697 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2698 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2699 index counters. The API functions that use this state have been changed
2700 to take a "class_index" rather than pointers to the class's local STACK
2701 and counter, and there is now an API function to dynamically create new
2702 classes. This centralisation allows us to (a) plug a lot of the
2703 thread-safety problems that existed, and (b) makes it possible to clean
2704 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2705 such data would previously have always leaked in application code and
2706 workarounds were in place to make the memory debugging turn a blind eye
2707 to it. Application code that doesn't use this new function will still
2708 leak as before, but their memory debugging output will announce it now
2709 rather than letting it slide.
2711 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2712 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2713 has a return value to indicate success or failure.
2716 *) Make it possible to replace the underlying "ERR" functions such that the
2717 global state (2 LHASH tables and 2 locks) is only used by the "default"
2718 implementation. This change also adds two functions to "get" and "set"
2719 the implementation prior to it being automatically set the first time
2720 any other ERR function takes place. Ie. an application can call "get",
2721 pass the return value to a module it has just loaded, and that module
2722 can call its own "set" function using that value. This means the
2723 module's "ERR" operations will use (and modify) the error state in the
2724 application and not in its own statically linked copy of OpenSSL code.
2727 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2728 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2729 the operation, and provides a more encapsulated way for external code
2730 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2731 to use these functions rather than manually incrementing the counts.
2733 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2736 *) Add EVP test program.
2739 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2742 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2743 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2744 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2745 These allow a CRL to be built without having to access X509_CRL fields
2746 directly. Modify 'ca' application to use new functions.
2749 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2750 bug workarounds. Rollback attack detection is a security feature.
2751 The problem will only arise on OpenSSL servers when TLSv1 is not
2752 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2753 Software authors not wanting to support TLSv1 will have special reasons
2754 for their choice and can explicitly enable this option.
2755 [Bodo Moeller, Lutz Jaenicke]
2757 *) Rationalise EVP so it can be extended: don't include a union of
2758 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2759 (similar to those existing for EVP_CIPHER_CTX).
2764 EVP_MD_CTX_init(&md); /* new function call */
2765 EVP_DigestInit(&md, EVP_sha1());
2766 EVP_DigestUpdate(&md, in, len);
2767 EVP_DigestFinal(&md, out, NULL);
2768 EVP_MD_CTX_cleanup(&md); /* new function call */
2772 *) Make DES key schedule conform to the usual scheme, as well as
2773 correcting its structure. This means that calls to DES functions
2774 now have to pass a pointer to a des_key_schedule instead of a
2775 plain des_key_schedule (which was actually always a pointer
2778 des_key_schedule ks;
2780 des_set_key_checked(..., &ks);
2781 des_ncbc_encrypt(..., &ks, ...);
2783 (Note that a later change renames 'des_...' into 'DES_...'.)
2786 *) Initial reduction of linker bloat: the use of some functions, such as
2787 PEM causes large amounts of unused functions to be linked in due to
2788 poor organisation. For example pem_all.c contains every PEM function
2789 which has a knock on effect of linking in large amounts of (unused)
2790 ASN1 code. Grouping together similar functions and splitting unrelated
2791 functions prevents this.
2794 *) Cleanup of EVP macros.
2797 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2798 correct _ecb suffix.
2801 *) Add initial OCSP responder support to ocsp application. The
2802 revocation information is handled using the text based index
2803 use by the ca application. The responder can either handle
2804 requests generated internally, supplied in files (for example
2805 via a CGI script) or using an internal minimal server.
2808 *) Add configuration choices to get zlib compression for TLS.
2811 *) Changes to Kerberos SSL for RFC 2712 compliance:
2812 1. Implemented real KerberosWrapper, instead of just using
2813 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2814 2. Implemented optional authenticator field of KerberosWrapper.
2816 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2817 and authenticator structs; see crypto/krb5/.
2819 Generalized Kerberos calls to support multiple Kerberos libraries.
2820 [Vern Staats <staatsvr@asc.hpc.mil>,
2821 Jeffrey Altman <jaltman@columbia.edu>
2822 via Richard Levitte]
2824 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2825 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2826 values for each of the key sizes rather than having just
2827 parameters (and 'speed' generating keys each time).
2830 *) Speed up EVP routines.
2833 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2834 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2835 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2836 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2838 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2839 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2840 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2843 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2845 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2848 *) Added the OS2-EMX target.
2849 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2851 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2852 to support NCONF routines in extension code. New function CONF_set_nconf()
2853 to allow functions which take an NCONF to also handle the old LHASH
2854 structure: this means that the old CONF compatible routines can be
2855 retained (in particular wrt extensions) without having to duplicate the
2856 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2859 *) Enhance the general user interface with mechanisms for inner control
2860 and with possibilities to have yes/no kind of prompts.
2863 *) Change all calls to low level digest routines in the library and
2864 applications to use EVP. Add missing calls to HMAC_cleanup() and
2865 don't assume HMAC_CTX can be copied using memcpy().
2866 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2868 *) Add the possibility to control engines through control names but with
2869 arbitrary arguments instead of just a string.
2870 Change the key loaders to take a UI_METHOD instead of a callback
2871 function pointer. NOTE: this breaks binary compatibility with earlier
2872 versions of OpenSSL [engine].
2873 Adapt the nCipher code for these new conditions and add a card insertion
2877 *) Enhance the general user interface with mechanisms to better support
2878 dialog box interfaces, application-defined prompts, the possibility
2879 to use defaults (for example default passwords from somewhere else)
2880 and interrupts/cancellations.
2883 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2884 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2887 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2888 tidy up some unnecessarily weird code in 'sk_new()').
2889 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2891 *) Change the key loading routines for ENGINEs to use the same kind
2892 callback (pem_password_cb) as all other routines that need this
2896 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2897 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2898 than this minimum value is recommended.
2901 *) New random seeder for OpenVMS, using the system process statistics
2902 that are easily reachable.
2905 *) Windows apparently can't transparently handle global
2906 variables defined in DLLs. Initialisations such as:
2908 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2910 wont compile. This is used by the any applications that need to
2911 declare their own ASN1 modules. This was fixed by adding the option
2912 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2913 needed for static libraries under Win32.
2916 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2917 setting of purpose and trust fields. New X509_STORE trust and
2918 purpose functions and tidy up setting in other SSL functions.
2921 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2922 structure. These are inherited by X509_STORE_CTX when it is
2923 initialised. This allows various defaults to be set in the
2924 X509_STORE structure (such as flags for CRL checking and custom
2925 purpose or trust settings) for functions which only use X509_STORE_CTX
2926 internally such as S/MIME.
2928 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2929 trust settings if they are not set in X509_STORE. This allows X509_STORE
2930 purposes and trust (in S/MIME for example) to override any set by default.
2932 Add command line options for CRL checking to smime, s_client and s_server
2936 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2937 are set then the CRL is looked up in the X509_STORE structure and
2938 its validity and signature checked, then if the certificate is found
2939 in the CRL the verify fails with a revoked error.
2941 Various new CRL related callbacks added to X509_STORE_CTX structure.
2943 Command line options added to 'verify' application to support this.
2945 This needs some additional work, such as being able to handle multiple
2946 CRLs with different times, extension based lookup (rather than just
2947 by subject name) and ultimately more complete V2 CRL extension
2951 *) Add a general user interface API (crypto/ui/). This is designed
2952 to replace things like des_read_password and friends (backward
2953 compatibility functions using this new API are provided).
2954 The purpose is to remove prompting functions from the DES code
2955 section as well as provide for prompting through dialog boxes in
2956 a window system and the like.
2959 *) Add "ex_data" support to ENGINE so implementations can add state at a
2960 per-structure level rather than having to store it globally.
2963 *) Make it possible for ENGINE structures to be copied when retrieved by
2964 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2965 This causes the "original" ENGINE structure to act like a template,
2966 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2967 operational state can be localised to each ENGINE structure, despite the
2968 fact they all share the same "methods". New ENGINE structures returned in
2969 this case have no functional references and the return value is the single
2970 structural reference. This matches the single structural reference returned
2971 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2975 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2976 needs to match any other type at all we need to manually clear the
2980 *) Changes to the "openssl engine" utility to include;
2981 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2982 about an ENGINE's available control commands.
2983 - executing control commands from command line arguments using the
2984 '-pre' and '-post' switches. '-post' is only used if '-t' is
2985 specified and the ENGINE is successfully initialised. The syntax for
2986 the individual commands are colon-separated, for example;
2987 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2990 *) New dynamic control command support for ENGINEs. ENGINEs can now
2991 declare their own commands (numbers), names (strings), descriptions,
2992 and input types for run-time discovery by calling applications. A
2993 subset of these commands are implicitly classed as "executable"
2994 depending on their input type, and only these can be invoked through
2995 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2996 can be based on user input, config files, etc). The distinction is
2997 that "executable" commands cannot return anything other than a boolean
2998 result and can only support numeric or string input, whereas some
2999 discoverable commands may only be for direct use through
3000 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3001 pointers, or other custom uses. The "executable" commands are to
3002 support parameterisations of ENGINE behaviour that can be
3003 unambiguously defined by ENGINEs and used consistently across any
3004 OpenSSL-based application. Commands have been added to all the
3005 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3006 control over shared-library paths without source code alterations.
3009 *) Changed all ENGINE implementations to dynamically allocate their
3010 ENGINEs rather than declaring them statically. Apart from this being
3011 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3012 this also allows the implementations to compile without using the
3013 internal engine_int.h header.
3016 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3017 'const' value. Any code that should be able to modify a RAND_METHOD
3018 should already have non-const pointers to it (ie. they should only
3019 modify their own ones).
3022 *) Made a variety of little tweaks to the ENGINE code.
3023 - "atalla" and "ubsec" string definitions were moved from header files
3024 to C code. "nuron" string definitions were placed in variables
3025 rather than hard-coded - allowing parameterisation of these values
3026 later on via ctrl() commands.
3027 - Removed unused "#if 0"'d code.
3028 - Fixed engine list iteration code so it uses ENGINE_free() to release
3029 structural references.
3030 - Constified the RAND_METHOD element of ENGINE structures.
3031 - Constified various get/set functions as appropriate and added
3032 missing functions (including a catch-all ENGINE_cpy that duplicates
3033 all ENGINE values onto a new ENGINE except reference counts/state).
3034 - Removed NULL parameter checks in get/set functions. Setting a method
3035 or function to NULL is a way of cancelling out a previously set
3036 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3037 and doesn't justify the extra error symbols and code.
3038 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3039 flags from engine_int.h to engine.h.
3040 - Changed prototypes for ENGINE handler functions (init(), finish(),
3041 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3044 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3045 to the algorithm using long division. The binary algorithm can be
3046 used only if the modulus is odd. On 32-bit systems, it is faster
3047 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3048 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3049 up to 450 bits. In 64-bit environments, the binary algorithm
3050 appears to be advantageous for much longer moduli; here we use it
3051 for moduli up to 2048 bits.
3054 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3055 could not support the combine flag in choice fields.
3058 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3059 extensions from a certificate request to the certificate.
3062 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3063 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3064 file: this allows the display of the certificate about to be
3065 signed to be customised, to allow certain fields to be included
3066 or excluded and extension details. The old system didn't display
3067 multicharacter strings properly, omitted fields not in the policy
3068 and couldn't display additional details such as extensions.
3071 *) Function EC_POINTs_mul for multiple scalar multiplication
3072 of an arbitrary number of elliptic curve points
3073 \sum scalars[i]*points[i],
3074 optionally including the generator defined for the EC_GROUP:
3075 scalar*generator + \sum scalars[i]*points[i].
3077 EC_POINT_mul is a simple wrapper function for the typical case
3078 that the point list has just one item (besides the optional
3082 *) First EC_METHODs for curves over GF(p):
3084 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3085 operations and provides various method functions that can also
3086 operate with faster implementations of modular arithmetic.
3088 EC_GFp_mont_method() reuses most functions that are part of
3089 EC_GFp_simple_method, but uses Montgomery arithmetic.
3091 [Bodo Moeller; point addition and point doubling
3092 implementation directly derived from source code provided by
3093 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3095 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3096 crypto/ec/ec_lib.c):
3098 Curves are EC_GROUP objects (with an optional group generator)
3099 based on EC_METHODs that are built into the library.
3101 Points are EC_POINT objects based on EC_GROUP objects.
3103 Most of the framework would be able to handle curves over arbitrary
3104 finite fields, but as there are no obvious types for fields other
3105 than GF(p), some functions are limited to that for now.
3108 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3109 that the file contains a complete HTTP response.
3112 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3113 change the def and num file printf format specifier from "%-40sXXX"
3114 to "%-39s XXX". The latter will always guarantee a space after the
3115 field while the former will cause them to run together if the field
3116 is 40 of more characters long.
3119 *) Constify the cipher and digest 'method' functions and structures
3120 and modify related functions to take constant EVP_MD and EVP_CIPHER
3124 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3125 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3128 *) Modify EVP_Digest*() routines so they now return values. Although the
3129 internal software routines can never fail additional hardware versions
3133 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3135 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3136 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3139 ERR_R_NESTED_ASN1_ERROR
3141 ERR_R_MISSING_ASN1_EOS
3142 were 4 .. 9, conflicting with
3143 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3145 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3146 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3148 Add new error code 'ERR_R_INTERNAL_ERROR'.
3151 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3155 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3156 sets the subject name for a new request or supersedes the
3157 subject name in a given request. Formats that can be parsed are
3158 'CN=Some Name, OU=myOU, C=IT'
3160 'CN=Some Name/OU=myOU/C=IT'.
3162 Add options '-batch' and '-verbose' to 'openssl req'.
3163 [Massimiliano Pala <madwolf@hackmasters.net>]
3165 *) Introduce the possibility to access global variables through
3166 functions on platform were that's the best way to handle exporting
3167 global variables in shared libraries. To enable this functionality,
3168 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3169 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3170 is normally done by Configure or something similar).
3172 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3173 in the source file (foo.c) like this:
3175 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3176 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3178 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3179 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3181 OPENSSL_DECLARE_GLOBAL(int,foo);
3182 #define foo OPENSSL_GLOBAL_REF(foo)
3183 OPENSSL_DECLARE_GLOBAL(double,bar);
3184 #define bar OPENSSL_GLOBAL_REF(bar)
3186 The #defines are very important, and therefore so is including the
3187 header file everywhere where the defined globals are used.
3189 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3190 of ASN.1 items, but that structure is a bit different.
3192 The largest change is in util/mkdef.pl which has been enhanced with
3193 better and easier to understand logic to choose which symbols should
3194 go into the Windows .def files as well as a number of fixes and code
3195 cleanup (among others, algorithm keywords are now sorted
3196 lexicographically to avoid constant rewrites).
3199 *) In BN_div() keep a copy of the sign of 'num' before writing the
3200 result to 'rm' because if rm==num the value will be overwritten
3201 and produce the wrong result if 'num' is negative: this caused
3202 problems with BN_mod() and BN_nnmod().
3205 *) Function OCSP_request_verify(). This checks the signature on an
3206 OCSP request and verifies the signer certificate. The signer
3207 certificate is just checked for a generic purpose and OCSP request
3211 *) Add OCSP_check_validity() function to check the validity of OCSP
3212 responses. OCSP responses are prepared in real time and may only
3213 be a few seconds old. Simply checking that the current time lies
3214 between thisUpdate and nextUpdate max reject otherwise valid responses
3215 caused by either OCSP responder or client clock inaccuracy. Instead
3216 we allow thisUpdate and nextUpdate to fall within a certain period of
3217 the current time. The age of the response can also optionally be
3218 checked. Two new options -validity_period and -status_age added to
3222 *) If signature or public key algorithm is unrecognized print out its
3223 OID rather that just UNKNOWN.
3226 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3227 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3228 ID to be generated from the issuer certificate alone which can then be
3229 passed to OCSP_id_issuer_cmp().
3232 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3233 ASN1 modules to export functions returning ASN1_ITEM pointers
3234 instead of the ASN1_ITEM structures themselves. This adds several
3235 new macros which allow the underlying ASN1 function/structure to
3236 be accessed transparently. As a result code should not use ASN1_ITEM
3237 references directly (such as &X509_it) but instead use the relevant
3238 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3239 use of the new ASN1 code on platforms where exporting structures
3240 is problematical (for example in shared libraries) but exporting
3241 functions returning pointers to structures is not.
3244 *) Add support for overriding the generation of SSL/TLS session IDs.
3245 These callbacks can be registered either in an SSL_CTX or per SSL.
3246 The purpose of this is to allow applications to control, if they wish,
3247 the arbitrary values chosen for use as session IDs, particularly as it
3248 can be useful for session caching in multiple-server environments. A
3249 command-line switch for testing this (and any client code that wishes
3250 to use such a feature) has been added to "s_server".
3251 [Geoff Thorpe, Lutz Jaenicke]
3253 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3254 of the form '#if defined(...) || defined(...) || ...' and
3255 '#if !defined(...) && !defined(...) && ...'. This also avoids
3256 the growing number of special cases it was previously handling.
3259 *) Make all configuration macros available for application by making
3260 sure they are available in opensslconf.h, by giving them names starting
3261 with "OPENSSL_" to avoid conflicts with other packages and by making
3262 sure e_os2.h will cover all platform-specific cases together with
3264 Additionally, it is now possible to define configuration/platform-
3265 specific names (called "system identities"). In the C code, these
3266 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3267 macro with the name beginning with "OPENSSL_SYS_", which is determined
3268 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3272 *) New option -set_serial to 'req' and 'x509' this allows the serial
3273 number to use to be specified on the command line. Previously self
3274 signed certificates were hard coded with serial number 0 and the
3275 CA options of 'x509' had to use a serial number in a file which was
3279 *) New options to 'ca' utility to support V2 CRL entry extensions.
3280 Currently CRL reason, invalidity date and hold instruction are
3281 supported. Add new CRL extensions to V3 code and some new objects.
3284 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3285 disable standard block padding (aka PKCS#5 padding) in the EVP
3286 API, which was previously mandatory. This means that the data is
3287 not padded in any way and so the total length much be a multiple
3288 of the block size, otherwise an error occurs.
3291 *) Initial (incomplete) OCSP SSL support.
3294 *) New function OCSP_parse_url(). This splits up a URL into its host,
3295 port and path components: primarily to parse OCSP URLs. New -url
3296 option to ocsp utility.
3299 *) New nonce behavior. The return value of OCSP_check_nonce() now
3300 reflects the various checks performed. Applications can decide
3301 whether to tolerate certain situations such as an absent nonce
3302 in a response when one was present in a request: the ocsp application
3303 just prints out a warning. New function OCSP_add1_basic_nonce()
3304 this is to allow responders to include a nonce in a response even if
3305 the request is nonce-less.
3308 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3309 skipped when using openssl x509 multiple times on a single input file,
3310 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3313 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3314 set string type: to handle setting ASN1_TIME structures. Fix ca
3315 utility to correctly initialize revocation date of CRLs.
3318 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3319 the clients preferred ciphersuites and rather use its own preferences.
3320 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3321 Internet Explorer by ensuring unchanged hash method during stepup.
3322 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3325 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3326 to aes and add a new 'exist' option to print out symbols that don't
3330 *) Additional options to ocsp utility to allow flags to be set and
3331 additional certificates supplied.
3334 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3335 OCSP client a number of certificate to only verify the response
3339 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3340 handle the new API. Currently only ECB, CBC modes supported. Add new
3343 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3344 Encryption Standard (AES) Ciphersuites for Transport Layer
3345 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3346 not enabled by default and were not part of the "ALL" ciphersuite
3347 alias because they were not yet official; they could be
3348 explicitly requested by specifying the "AESdraft" ciphersuite
3349 group alias. In the final release of OpenSSL 0.9.7, the group
3350 alias is called "AES" and is part of "ALL".)
3351 [Ben Laurie, Steve Henson, Bodo Moeller]
3353 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3354 request to response.
3357 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3358 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3359 extract information from a certificate request. OCSP_response_create()
3360 creates a response and optionally adds a basic response structure.
3361 OCSP_basic_add1_status() adds a complete single response to a basic
3362 response and returns the OCSP_SINGLERESP structure just added (to allow
3363 extensions to be included for example). OCSP_basic_add1_cert() adds a
3364 certificate to a basic response and OCSP_basic_sign() signs a basic
3365 response with various flags. New helper functions ASN1_TIME_check()
3366 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3367 (converts ASN1_TIME to GeneralizedTime).
3370 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3371 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3372 structure from a certificate. X509_pubkey_digest() digests the public_key
3373 contents: this is used in various key identifiers.
3376 *) Make sk_sort() tolerate a NULL argument.
3377 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3379 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3380 passed by the function are trusted implicitly. If any of them signed the
3381 response then it is assumed to be valid and is not verified.
3384 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3385 to data. This was previously part of the PKCS7 ASN1 code. This
3386 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3387 [Steve Henson, reported by Kenneth R. Robinette
3388 <support@securenetterm.com>]
3390 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3391 routines: without these tracing memory leaks is very painful.
3392 Fix leaks in PKCS12 and PKCS7 routines.
3395 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3396 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3397 effectively meant GeneralizedTime would never be used. Now it
3398 is initialised to -1 but X509_time_adj() now has to check the value
3399 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3400 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3401 [Steve Henson, reported by Kenneth R. Robinette
3402 <support@securenetterm.com>]
3404 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3405 result in a zero length in the ASN1_INTEGER structure which was
3406 not consistent with the structure when d2i_ASN1_INTEGER() was used
3407 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3408 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3409 where it did not print out a minus for negative ASN1_INTEGER.
3412 *) Add summary printout to ocsp utility. The various functions which
3413 convert status values to strings have been renamed to:
3414 OCSP_response_status_str(), OCSP_cert_status_str() and
3415 OCSP_crl_reason_str() and are no longer static. New options
3416 to verify nonce values and to disable verification. OCSP response
3417 printout format cleaned up.
3420 *) Add additional OCSP certificate checks. These are those specified
3421 in RFC2560. This consists of two separate checks: the CA of the
3422 certificate being checked must either be the OCSP signer certificate
3423 or the issuer of the OCSP signer certificate. In the latter case the
3424 OCSP signer certificate must contain the OCSP signing extended key
3425 usage. This check is performed by attempting to match the OCSP
3426 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3427 in the OCSP_CERTID structures of the response.
3430 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3431 and related routines. This uses the standard OpenSSL certificate
3432 verify routines to perform initial checks (just CA validity) and
3433 to obtain the certificate chain. Then additional checks will be
3434 performed on the chain. Currently the root CA is checked to see
3435 if it is explicitly trusted for OCSP signing. This is used to set
3436 a root CA as a global signing root: that is any certificate that
3437 chains to that CA is an acceptable OCSP signing certificate.
3440 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3441 extensions from a separate configuration file.
3442 As when reading extensions from the main configuration file,
3443 the '-extensions ...' option may be used for specifying the
3445 [Massimiliano Pala <madwolf@comune.modena.it>]
3447 *) New OCSP utility. Allows OCSP requests to be generated or
3448 read. The request can be sent to a responder and the output
3449 parsed, outputed or printed in text form. Not complete yet:
3450 still needs to check the OCSP response validity.
3453 *) New subcommands for 'openssl ca':
3454 'openssl ca -status <serial>' prints the status of the cert with
3455 the given serial number (according to the index file).
3456 'openssl ca -updatedb' updates the expiry status of certificates
3458 [Massimiliano Pala <madwolf@comune.modena.it>]
3460 *) New '-newreq-nodes' command option to CA.pl. This is like
3461 '-newreq', but calls 'openssl req' with the '-nodes' option
3462 so that the resulting key is not encrypted.
3463 [Damien Miller <djm@mindrot.org>]
3465 *) New configuration for the GNU Hurd.
3466 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3468 *) Initial code to implement OCSP basic response verify. This
3469 is currently incomplete. Currently just finds the signer's
3470 certificate and verifies the signature on the response.
3473 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3474 value of OPENSSLDIR. This is available via the new '-d' option
3475 to 'openssl version', and is also included in 'openssl version -a'.
3478 *) Allowing defining memory allocation callbacks that will be given
3479 file name and line number information in additional arguments
3480 (a const char* and an int). The basic functionality remains, as
3481 well as the original possibility to just replace malloc(),
3482 realloc() and free() by functions that do not know about these
3483 additional arguments. To register and find out the current
3484 settings for extended allocation functions, the following
3485 functions are provided:
3487 CRYPTO_set_mem_ex_functions
3488 CRYPTO_set_locked_mem_ex_functions
3489 CRYPTO_get_mem_ex_functions
3490 CRYPTO_get_locked_mem_ex_functions
3492 These work the same way as CRYPTO_set_mem_functions and friends.
3493 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3494 extended allocation function is enabled.
3495 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3496 a conventional allocation function is enabled.
3497 [Richard Levitte, Bodo Moeller]
3499 *) Finish off removing the remaining LHASH function pointer casts.
3500 There should no longer be any prototype-casting required when using
3501 the LHASH abstraction, and any casts that remain are "bugs". See
3502 the callback types and macros at the head of lhash.h for details
3503 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3506 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3507 If /dev/[u]random devices are not available or do not return enough
3508 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3510 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3511 /etc/entropy will be queried once each in this sequence, quering stops
3512 when enough entropy was collected without querying more sockets.
3515 *) Change the Unix RAND_poll() variant to be able to poll several
3516 random devices, as specified by DEVRANDOM, until a sufficient amount
3517 of data has been collected. We spend at most 10 ms on each file
3518 (select timeout) and read in non-blocking mode. DEVRANDOM now
3519 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3520 (previously it was just the string "/dev/urandom"), so on typical
3521 platforms the 10 ms delay will never occur.
3522 Also separate out the Unix variant to its own file, rand_unix.c.
3523 For VMS, there's a currently-empty rand_vms.c.
3526 *) Move OCSP client related routines to ocsp_cl.c. These
3527 provide utility functions which an application needing
3528 to issue a request to an OCSP responder and analyse the
3529 response will typically need: as opposed to those which an
3530 OCSP responder itself would need which will be added later.
3532 OCSP_request_sign() signs an OCSP request with an API similar
3533 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3534 response. OCSP_response_get1_basic() extracts basic response
3535 from response. OCSP_resp_find_status(): finds and extracts status
3536 information from an OCSP_CERTID structure (which will be created
3537 when the request structure is built). These are built from lower
3538 level functions which work on OCSP_SINGLERESP structures but
3539 wont normally be used unless the application wishes to examine
3540 extensions in the OCSP response for example.
3542 Replace nonce routines with a pair of functions.
3543 OCSP_request_add1_nonce() adds a nonce value and optionally
3544 generates a random value. OCSP_check_nonce() checks the
3545 validity of the nonce in an OCSP response.
3548 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3549 This doesn't copy the supplied OCSP_CERTID and avoids the
3550 need to free up the newly created id. Change return type
3551 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3552 This can then be used to add extensions to the request.
3553 Deleted OCSP_request_new(), since most of its functionality
3554 is now in OCSP_REQUEST_new() (and the case insensitive name
3555 clash) apart from the ability to set the request name which
3556 will be added elsewhere.
3559 *) Update OCSP API. Remove obsolete extensions argument from
3560 various functions. Extensions are now handled using the new
3561 OCSP extension code. New simple OCSP HTTP function which
3562 can be used to send requests and parse the response.
3565 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3566 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3567 uses the special reorder version of SET OF to sort the attributes
3568 and reorder them to match the encoded order. This resolves a long
3569 standing problem: a verify on a PKCS7 structure just after signing
3570 it used to fail because the attribute order did not match the
3571 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3572 it uses the received order. This is necessary to tolerate some broken
3573 software that does not order SET OF. This is handled by encoding
3574 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3575 to produce the required SET OF.
3578 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3579 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3580 files to get correct declarations of the ASN.1 item variables.
3583 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3584 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3585 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3586 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3587 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3588 ASN1_ITEM and no wrapper functions.
3591 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3592 replace the old function pointer based I/O routines. Change most of
3593 the *_d2i_bio() and *_d2i_fp() functions to use these.
3596 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3597 lines, recognice more "algorithms" that can be deselected, and make
3598 it complain about algorithm deselection that isn't recognised.
3601 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3602 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3603 to use new functions. Add NO_ASN1_OLD which can be set to remove
3604 some old style ASN1 functions: this can be used to determine if old
3605 code will still work when these eventually go away.
3608 *) New extension functions for OCSP structures, these follow the
3609 same conventions as certificates and CRLs.
3612 *) New function X509V3_add1_i2d(). This automatically encodes and
3613 adds an extension. Its behaviour can be customised with various
3614 flags to append, replace or delete. Various wrappers added for
3615 certifcates and CRLs.
3618 *) Fix to avoid calling the underlying ASN1 print routine when
3619 an extension cannot be parsed. Correct a typo in the
3620 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3623 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3624 entries for variables.
3627 *) Add functionality to apps/openssl.c for detecting locking
3628 problems: As the program is single-threaded, all we have
3629 to do is register a locking callback using an array for
3630 storing which locks are currently held by the program.
3633 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3634 SSL_get_ex_data_X509_STORE_idx(), which is used in
3635 ssl_verify_cert_chain() and thus can be called at any time
3636 during TLS/SSL handshakes so that thread-safety is essential.
3637 Unfortunately, the ex_data design is not at all suited
3638 for multi-threaded use, so it probably should be abolished.
3641 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3642 [Broadcom, tweaked and integrated by Geoff Thorpe]
3644 *) Move common extension printing code to new function
3645 X509V3_print_extensions(). Reorganise OCSP print routines and
3646 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3649 *) New function X509_signature_print() to remove duplication in some
3653 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3654 set (this was treated exactly the same as SET OF previously). This
3655 is used to reorder the STACK representing the structure to match the
3656 encoding. This will be used to get round a problem where a PKCS7
3657 structure which was signed could not be verified because the STACK
3658 order did not reflect the encoded order.
3661 *) Reimplement the OCSP ASN1 module using the new code.
3664 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3665 for its ASN1 operations. The old style function pointers still exist
3666 for now but they will eventually go away.
3669 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3670 completely replaces the old ASN1 functionality with a table driven
3671 encoder and decoder which interprets an ASN1_ITEM structure describing
3672 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3673 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3674 has also been converted to the new form.
3677 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3678 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3679 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3680 for negative moduli.
3683 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3684 of not touching the result's sign bit.
3687 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3691 *) Changed the LHASH code to use prototypes for callbacks, and created
3692 macros to declare and implement thin (optionally static) functions
3693 that provide type-safety and avoid function pointer casting for the
3694 type-specific callbacks.
3697 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3699 [Veers Staats <staatsvr@asc.hpc.mil>,
3700 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3702 *) Reformat the FAQ so the different questions and answers can be divided
3703 in sections depending on the subject.
3706 *) Have the zlib compression code load ZLIB.DLL dynamically under
3710 *) New function BN_mod_sqrt for computing square roots modulo a prime
3711 (using the probabilistic Tonelli-Shanks algorithm unless
3712 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3713 be handled deterministically).
3714 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3716 *) Make BN_mod_inverse faster by explicitly handling small quotients
3717 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3718 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3721 *) New function BN_kronecker.
3724 *) Fix BN_gcd so that it works on negative inputs; the result is
3725 positive unless both parameters are zero.
3726 Previously something reasonably close to an infinite loop was
3727 possible because numbers could be growing instead of shrinking
3728 in the implementation of Euclid's algorithm.
3731 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3732 sign of the number in question.
3734 Fix BN_is_word(a,w) to work correctly for w == 0.
3736 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3737 because its test if the absolute value of 'a' equals 'w'.
3738 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3739 it exists mostly for use in the implementations of BN_is_zero(),
3740 BN_is_one(), and BN_is_word().
3743 *) New function BN_swap.
3746 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3747 the exponentiation functions are more likely to produce reasonable
3748 results on negative inputs.
3751 *) Change BN_mod_mul so that the result is always non-negative.
3752 Previously, it could be negative if one of the factors was negative;
3753 I don't think anyone really wanted that behaviour.
3756 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3757 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3758 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3759 and add new functions:
3768 BN_mod_lshift1_quick
3772 These functions always generate non-negative results.
3774 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3775 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3777 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3778 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3779 be reduced modulo m.
3780 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3783 The following entry accidentily appeared in the CHANGES file
3784 distributed with OpenSSL 0.9.7. The modifications described in
3785 it do *not* apply to OpenSSL 0.9.7.
3787 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3788 was actually never needed) and in BN_mul(). The removal in BN_mul()
3789 required a small change in bn_mul_part_recursive() and the addition
3790 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3791 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3792 bn_sub_words() and bn_add_words() except they take arrays with
3797 *) In 'openssl passwd', verify passwords read from the terminal
3798 unless the '-salt' option is used (which usually means that
3799 verification would just waste user's time since the resulting
3800 hash is going to be compared with some given password hash)
3801 or the new '-noverify' option is used.
3803 This is an incompatible change, but it does not affect
3804 non-interactive use of 'openssl passwd' (passwords on the command
3805 line, '-stdin' option, '-in ...' option) and thus should not
3809 *) Remove all references to RSAref, since there's no more need for it.
3812 *) Make DSO load along a path given through an environment variable
3813 (SHLIB_PATH) with shl_load().
3816 *) Constify the ENGINE code as a result of BIGNUM constification.
3817 Also constify the RSA code and most things related to it. In a
3818 few places, most notable in the depth of the ASN.1 code, ugly
3819 casts back to non-const were required (to be solved at a later
3823 *) Make it so the openssl application has all engines loaded by default.
3826 *) Constify the BIGNUM routines a little more.
3829 *) Add the following functions:
3831 ENGINE_load_cswift()
3833 ENGINE_load_atalla()
3835 ENGINE_load_builtin_engines()
3837 That way, an application can itself choose if external engines that
3838 are built-in in OpenSSL shall ever be used or not. The benefit is
3839 that applications won't have to be linked with libdl or other dso
3840 libraries unless it's really needed.
3842 Changed 'openssl engine' to load all engines on demand.
3843 Changed the engine header files to avoid the duplication of some
3844 declarations (they differed!).
3847 *) 'openssl engine' can now list capabilities.
3850 *) Better error reporting in 'openssl engine'.
3853 *) Never call load_dh_param(NULL) in s_server.
3856 *) Add engine application. It can currently list engines by name and
3857 identity, and test if they are actually available.
3860 *) Improve RPM specification file by forcing symbolic linking and making
3861 sure the installed documentation is also owned by root.root.
3862 [Damien Miller <djm@mindrot.org>]
3864 *) Give the OpenSSL applications more possibilities to make use of
3865 keys (public as well as private) handled by engines.
3868 *) Add OCSP code that comes from CertCo.
3871 *) Add VMS support for the Rijndael code.
3874 *) Added untested support for Nuron crypto accelerator.
3877 *) Add support for external cryptographic devices. This code was
3878 previously distributed separately as the "engine" branch.
3879 [Geoff Thorpe, Richard Levitte]
3881 *) Rework the filename-translation in the DSO code. It is now possible to
3882 have far greater control over how a "name" is turned into a filename
3883 depending on the operating environment and any oddities about the
3884 different shared library filenames on each system.
3887 *) Support threads on FreeBSD-elf in Configure.
3890 *) Fix for SHA1 assembly problem with MASM: it produces
3891 warnings about corrupt line number information when assembling
3892 with debugging information. This is caused by the overlapping
3894 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3897 NCONF_get_number() has no error checking at all. As a replacement,
3898 NCONF_get_number_e() is defined (_e for "error checking") and is
3899 promoted strongly. The old NCONF_get_number is kept around for
3900 binary backward compatibility.
3901 Make it possible for methods to load from something other than a BIO,
3902 by providing a function pointer that is given a name instead of a BIO.
3903 For example, this could be used to load configuration data from an
3907 *) Fix for non blocking accept BIOs. Added new I/O special reason
3908 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3909 with non blocking I/O was not possible because no retry code was
3910 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3914 *) Added the beginnings of Rijndael support.
3917 *) Fix for bug in DirectoryString mask setting. Add support for
3918 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3919 to allow certificate printing to more controllable, additional
3920 'certopt' option to 'x509' to allow new printing options to be
3924 *) Clean old EAY MD5 hack from e_os.h.
3927 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3929 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3930 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3931 [Joe Orton, Steve Henson]
3933 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3935 *) Fix additional bug revealed by the NISCC test suite:
3937 Stop bug triggering large recursion when presented with
3938 certain ASN.1 tags (CVE-2003-0851)
3941 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3943 *) Fix various bugs revealed by running the NISCC test suite:
3945 Stop out of bounds reads in the ASN1 code when presented with
3946 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3948 If verify callback ignores invalid public key errors don't try to check
3949 certificate signature with the NULL public key.
3953 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3954 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3958 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3959 extra data after the compression methods not only for TLS 1.0
3960 but also for SSL 3.0 (as required by the specification).
3961 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3963 *) Change X509_certificate_type() to mark the key as exported/exportable
3964 when it's 512 *bits* long, not 512 bytes.
3967 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3969 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3970 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3971 a protocol version number mismatch like a decryption error
3972 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3975 *) Turn on RSA blinding by default in the default implementation
3976 to avoid a timing attack. Applications that don't want it can call
3977 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3978 They would be ill-advised to do so in most cases.
3979 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3981 *) Change RSA blinding code so that it works when the PRNG is not
3982 seeded (in this case, the secret RSA exponent is abused as
3983 an unpredictable seed -- if it is not unpredictable, there
3984 is no point in blinding anyway). Make RSA blinding thread-safe
3985 by remembering the creator's thread ID in rsa->blinding and
3986 having all other threads use local one-time blinding factors
3987 (this requires more computation than sharing rsa->blinding, but
3988 avoids excessive locking; and if an RSA object is not shared
3989 between threads, blinding will still be very fast).
3992 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3994 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3995 via timing by performing a MAC computation even if incorrrect
3996 block cipher padding has been found. This is a countermeasure
3997 against active attacks where the attacker has to distinguish
3998 between bad padding and a MAC verification error. (CVE-2003-0078)
4000 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4001 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4002 Martin Vuagnoux (EPFL, Ilion)]
4004 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4006 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4007 memory from it's contents. This is done with a counter that will
4008 place alternating values in each byte. This can be used to solve
4009 two issues: 1) the removal of calls to memset() by highly optimizing
4010 compilers, and 2) cleansing with other values than 0, since those can
4011 be read through on certain media, for example a swap space on disk.
4014 *) Bugfix: client side session caching did not work with external caching,
4015 because the session->cipher setting was not restored when reloading
4016 from the external cache. This problem was masked, when
4017 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4018 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4021 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4022 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4023 [Zeev Lieber <zeev-l@yahoo.com>]
4025 *) Undo an undocumented change introduced in 0.9.6e which caused
4026 repeated calls to OpenSSL_add_all_ciphers() and
4027 OpenSSL_add_all_digests() to be ignored, even after calling
4031 *) Change the default configuration reader to deal with last line not
4032 being properly terminated.
4035 *) Change X509_NAME_cmp() so it applies the special rules on handling
4036 DN values that are of type PrintableString, as well as RDNs of type
4037 emailAddress where the value has the type ia5String.
4038 [stefank@valicert.com via Richard Levitte]
4040 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4041 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4042 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4043 the bitwise-OR of the two for use by the majority of applications
4044 wanting this behaviour, and update the docs. The documented
4045 behaviour and actual behaviour were inconsistent and had been
4046 changing anyway, so this is more a bug-fix than a behavioural
4048 [Geoff Thorpe, diagnosed by Nadav Har'El]
4050 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4051 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4054 *) Fix initialization code race conditions in
4055 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4056 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4057 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4058 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4059 ssl2_get_cipher_by_char(),
4060 ssl3_get_cipher_by_char().
4061 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4063 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4064 the cached sessions are flushed, as the remove_cb() might use ex_data
4065 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4066 (see [openssl.org #212]).
4067 [Geoff Thorpe, Lutz Jaenicke]
4069 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4070 length, instead of the encoding length to d2i_ASN1_OBJECT.
4073 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4075 *) [In 0.9.6g-engine release:]
4076 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4077 [Lynn Gazis <lgazis@rainbow.com>]
4079 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4081 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4082 and get fix the header length calculation.
4083 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4084 Alon Kantor <alonk@checkpoint.com> (and others),
4087 *) Use proper error handling instead of 'assertions' in buffer
4088 overflow checks added in 0.9.6e. This prevents DoS (the
4089 assertions could call abort()).
4090 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4092 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4094 *) Add various sanity checks to asn1_get_length() to reject
4095 the ASN1 length bytes if they exceed sizeof(long), will appear
4096 negative or the content length exceeds the length of the
4098 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4100 *) Fix cipher selection routines: ciphers without encryption had no flags
4101 for the cipher strength set and where therefore not handled correctly
4102 by the selection routines (PR #130).
4105 *) Fix EVP_dsa_sha macro.
4109 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4110 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4111 that was added in OpenSSL 0.9.6d.
4113 As the countermeasure turned out to be incompatible with some
4114 broken SSL implementations, the new option is part of SSL_OP_ALL.
4115 SSL_OP_ALL is usually employed when compatibility with weird SSL
4116 implementations is desired (e.g. '-bugs' option to 's_client' and
4117 's_server'), so the new option is automatically set in many
4121 *) Changes in security patch:
4123 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4124 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4125 Air Force Materiel Command, USAF, under agreement number
4128 *) Add various sanity checks to asn1_get_length() to reject
4129 the ASN1 length bytes if they exceed sizeof(long), will appear
4130 negative or the content length exceeds the length of the
4131 supplied buffer. (CVE-2002-0659)
4132 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4134 *) Assertions for various potential buffer overflows, not known to
4136 [Ben Laurie (CHATS)]
4138 *) Various temporary buffers to hold ASCII versions of integers were
4139 too small for 64 bit platforms. (CVE-2002-0655)
4140 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4142 *) Remote buffer overflow in SSL3 protocol - an attacker could
4143 supply an oversized session ID to a client. (CVE-2002-0656)
4144 [Ben Laurie (CHATS)]
4146 *) Remote buffer overflow in SSL2 protocol - an attacker could
4147 supply an oversized client master key. (CVE-2002-0656)
4148 [Ben Laurie (CHATS)]
4150 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4152 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4153 encoded as NULL) with id-dsa-with-sha1.
4154 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4156 *) Check various X509_...() return values in apps/req.c.
4157 [Nils Larsch <nla@trustcenter.de>]
4159 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4160 an end-of-file condition would erronously be flagged, when the CRLF
4161 was just at the end of a processed block. The bug was discovered when
4162 processing data through a buffering memory BIO handing the data to a
4163 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4164 <ptsekov@syntrex.com> and Nedelcho Stanev.
4167 *) Implement a countermeasure against a vulnerability recently found
4168 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4169 before application data chunks to avoid the use of known IVs
4170 with data potentially chosen by the attacker.
4173 *) Fix length checks in ssl3_get_client_hello().
4176 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4177 to prevent ssl3_read_internal() from incorrectly assuming that
4178 ssl3_read_bytes() found application data while handshake
4179 processing was enabled when in fact s->s3->in_read_app_data was
4180 merely automatically cleared during the initial handshake.
4181 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4183 *) Fix object definitions for Private and Enterprise: they were not
4184 recognized in their shortname (=lowercase) representation. Extend
4185 obj_dat.pl to issue an error when using undefined keywords instead
4186 of silently ignoring the problem (Svenning Sorensen
4187 <sss@sss.dnsalias.net>).
4190 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4191 generators, i.e. generators other than 2 and 5. (Previously, the
4192 code did not properly initialise the 'add' and 'rem' values to
4193 BN_generate_prime().)
4195 In the new general case, we do not insist that 'generator' is
4196 actually a primitive root: This requirement is rather pointless;
4197 a generator of the order-q subgroup is just as good, if not
4201 *) Map new X509 verification errors to alerts. Discovered and submitted by
4202 Tom Wu <tom@arcot.com>.
4205 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4206 returning non-zero before the data has been completely received
4207 when using non-blocking I/O.
4208 [Bodo Moeller; problem pointed out by John Hughes]
4210 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4211 [Ben Laurie, Lutz Jaenicke]
4213 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4214 Yoram Zahavi <YoramZ@gilian.com>).
4217 *) Add information about CygWin 1.3 and on, and preserve proper
4218 configuration for the versions before that.
4219 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4221 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4222 check whether we deal with a copy of a session and do not delete from
4223 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4224 <izhar@checkpoint.com>.
4227 *) Do not store session data into the internal session cache, if it
4228 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4229 flag is set). Proposed by Aslam <aslam@funk.com>.
4232 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4236 *) [In 0.9.6d-engine release:]
4237 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4238 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4240 *) Add the configuration target linux-s390x.
4241 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4243 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4244 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4245 variable as an indication that a ClientHello message has been
4246 received. As the flag value will be lost between multiple
4247 invocations of ssl3_accept when using non-blocking I/O, the
4248 function may not be aware that a handshake has actually taken
4249 place, thus preventing a new session from being added to the
4252 To avoid this problem, we now set s->new_session to 2 instead of
4253 using a local variable.
4254 [Lutz Jaenicke, Bodo Moeller]
4256 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4257 if the SSL_R_LENGTH_MISMATCH error is detected.
4258 [Geoff Thorpe, Bodo Moeller]
4260 *) New 'shared_ldflag' column in Configure platform table.
4263 *) Fix EVP_CIPHER_mode macro.
4264 ["Dan S. Camper" <dan@bti.net>]
4266 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4267 type, we must throw them away by setting rr->length to 0.
4268 [D P Chang <dpc@qualys.com>]
4270 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4272 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4273 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4274 worked incorrectly for those cases where range = 10..._2 and
4275 3*range is two bits longer than range.)
4278 *) Only add signing time to PKCS7 structures if it is not already
4282 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4283 OBJ_ld_ce should be OBJ_id_ce.
4284 Also some ip-pda OIDs in crypto/objects/objects.txt were
4285 incorrect (cf. RFC 3039).
4286 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4288 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4289 returns early because it has nothing to do.
4290 [Andy Schneider <andy.schneider@bjss.co.uk>]
4292 *) [In 0.9.6c-engine release:]
4293 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4294 [Andy Schneider <andy.schneider@bjss.co.uk>]
4296 *) [In 0.9.6c-engine release:]
4297 Add support for Cryptographic Appliance's keyserver technology.
4298 (Use engine 'keyclient')
4299 [Cryptographic Appliances and Geoff Thorpe]
4301 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4302 is called via tools/c89.sh because arguments have to be
4303 rearranged (all '-L' options must appear before the first object
4305 [Richard Shapiro <rshapiro@abinitio.com>]
4307 *) [In 0.9.6c-engine release:]
4308 Add support for Broadcom crypto accelerator cards, backported
4310 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4312 *) [In 0.9.6c-engine release:]
4313 Add support for SureWare crypto accelerator cards from
4314 Baltimore Technologies. (Use engine 'sureware')
4315 [Baltimore Technologies and Mark Cox]
4317 *) [In 0.9.6c-engine release:]
4318 Add support for crypto accelerator cards from Accelerated
4319 Encryption Processing, www.aep.ie. (Use engine 'aep')
4320 [AEP Inc. and Mark Cox]
4322 *) Add a configuration entry for gcc on UnixWare.
4323 [Gary Benson <gbenson@redhat.com>]
4325 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4326 messages are stored in a single piece (fixed-length part and
4327 variable-length part combined) and fix various bugs found on the way.
4330 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4331 instead. BIO_gethostbyname() does not know what timeouts are
4332 appropriate, so entries would stay in cache even when they have
4334 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4336 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4337 faced with a pathologically small ClientHello fragment that does
4338 not contain client_version: Instead of aborting with an error,
4339 simply choose the highest available protocol version (i.e.,
4340 TLS 1.0 unless it is disabled). In practice, ClientHello
4341 messages are never sent like this, but this change gives us
4342 strictly correct behaviour at least for TLS.
4345 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4346 never resets s->method to s->ctx->method when called from within
4347 one of the SSL handshake functions.
4348 [Bodo Moeller; problem pointed out by Niko Baric]
4350 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4351 (sent using the client's version number) if client_version is
4352 smaller than the protocol version in use. Also change
4353 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4354 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4355 the client will at least see that alert.
4358 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4362 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4363 client receives HelloRequest while in a handshake.
4364 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4366 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4367 should end in 'break', not 'goto end' which circuments various
4368 cleanups done in state SSL_ST_OK. But session related stuff
4369 must be disabled for SSL_ST_OK in the case that we just sent a
4372 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4373 before just sending a HelloRequest.
4374 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4376 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4377 reveal whether illegal block cipher padding was found or a MAC
4378 verification error occured. (Neither SSLerr() codes nor alerts
4379 are directly visible to potential attackers, but the information
4380 may leak via logfiles.)
4382 Similar changes are not required for the SSL 2.0 implementation
4383 because the number of padding bytes is sent in clear for SSL 2.0,
4384 and the extra bytes are just ignored. However ssl/s2_pkt.c
4385 failed to verify that the purported number of padding bytes is in
4389 *) Add OpenUNIX-8 support including shared libraries
4390 (Boyd Lynn Gerber <gerberb@zenez.com>).
4393 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4394 'wristwatch attack' using huge encoding parameters (cf.
4395 James H. Manger's CRYPTO 2001 paper). Note that the
4396 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4397 encoding parameters and hence was not vulnerable.
4400 *) BN_sqr() bug fix.
4401 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4403 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4404 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4405 followed by modular reduction.
4406 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4408 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4409 equivalent based on BN_pseudo_rand() instead of BN_rand().
4412 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4413 This function was broken, as the check for a new client hello message
4414 to handle SGC did not allow these large messages.
4415 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4418 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4421 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4422 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4425 *) Rework the configuration and shared library support for Tru64 Unix.
4426 The configuration part makes use of modern compiler features and
4427 still retains old compiler behavior for those that run older versions
4428 of the OS. The shared library support part includes a variant that
4429 uses the RPATH feature, and is available through the special
4430 configuration target "alpha-cc-rpath", which will never be selected
4432 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4434 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4435 with the same message size as in ssl3_get_certificate_request().
4436 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4437 messages might inadvertently be reject as too long.
4438 [Petr Lampa <lampa@fee.vutbr.cz>]
4440 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4443 *) Modified SSL library such that the verify_callback that has been set
4444 specificly for an SSL object with SSL_set_verify() is actually being
4445 used. Before the change, a verify_callback set with this function was
4446 ignored and the verify_callback() set in the SSL_CTX at the time of
4447 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4448 to allow the necessary settings.
4451 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4452 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4453 done automatically (in contradiction to the requirements of the C
4454 standard). This made problems when used from OpenSSH.
4457 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4458 dh->length and always used
4460 BN_rand_range(priv_key, dh->p).
4462 BN_rand_range() is not necessary for Diffie-Hellman, and this
4463 specific range makes Diffie-Hellman unnecessarily inefficient if
4464 dh->length (recommended exponent length) is much smaller than the
4465 length of dh->p. We could use BN_rand_range() if the order of
4466 the subgroup was stored in the DH structure, but we only have
4471 BN_rand(priv_key, l, ...)
4473 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4479 RSA_eay_public_encrypt
4480 RSA_eay_private_decrypt
4481 RSA_eay_private_encrypt (signing)
4482 RSA_eay_public_decrypt (signature verification)
4484 (default implementations for RSA_public_encrypt,
4485 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4486 always reject numbers >= n.
4489 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4490 to synchronize access to 'locking_thread'. This is necessary on
4491 systems where access to 'locking_thread' (an 'unsigned long'
4492 variable) is not atomic.
4495 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4496 *before* setting the 'crypto_lock_rand' flag. The previous code had
4497 a race condition if 0 is a valid thread ID.
4498 [Travis Vitek <vitek@roguewave.com>]
4500 *) Add support for shared libraries under Irix.
4501 [Albert Chin-A-Young <china@thewrittenword.com>]
4503 *) Add configuration option to build on Linux on both big-endian and
4505 [Ralf Baechle <ralf@uni-koblenz.de>]
4507 *) Add the possibility to create shared libraries on HP-UX.
4510 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4512 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4513 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4514 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4515 PRNG state recovery was possible based on the output of
4516 one PRNG request appropriately sized to gain knowledge on
4517 'md' followed by enough consecutive 1-byte PRNG requests
4518 to traverse all of 'state'.
4520 1. When updating 'md_local' (the current thread's copy of 'md')
4521 during PRNG output generation, hash all of the previous
4522 'md_local' value, not just the half used for PRNG output.
4524 2. Make the number of bytes from 'state' included into the hash
4525 independent from the number of PRNG bytes requested.
4527 The first measure alone would be sufficient to avoid
4528 Markku-Juhani's attack. (Actually it had never occurred
4529 to me that the half of 'md_local' used for chaining was the
4530 half from which PRNG output bytes were taken -- I had always
4531 assumed that the secret half would be used.) The second
4532 measure makes sure that additional data from 'state' is never
4533 mixed into 'md_local' in small portions; this heuristically
4534 further strengthens the PRNG.
4537 *) Fix crypto/bn/asm/mips3.s.
4540 *) When only the key is given to "enc", the IV is undefined. Print out
4541 an error message in this case.
4544 *) Handle special case when X509_NAME is empty in X509 printing routines.
4547 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4548 positive and less than q.
4551 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4552 used: it isn't thread safe and the add_lock_callback should handle
4554 [Paul Rose <Paul.Rose@bridge.com>]
4556 *) Verify that incoming data obeys the block size in
4557 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4561 [Ulf Möller, Bodo Möller]
4563 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4564 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4565 when fixing the server behaviour for backwards-compatible 'client
4566 hello' messages. (Note that the attack is impractical against
4567 SSL 3.0 and TLS 1.0 anyway because length and version checking
4568 means that the probability of guessing a valid ciphertext is
4569 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4572 Before 0.9.5, the countermeasure (hide the error by generating a
4573 random 'decryption result') did not work properly because
4574 ERR_clear_error() was missing, meaning that SSL_get_error() would
4575 detect the supposedly ignored error.
4577 Both problems are now fixed.
4580 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4581 (previously it was 1024).
4584 *) Fix for compatibility mode trust settings: ignore trust settings
4585 unless some valid trust or reject settings are present.
4588 *) Fix for blowfish EVP: its a variable length cipher.
4591 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4592 parameters in DSA public key structures and return an error in the
4593 DSA routines if parameters are absent.
4596 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4597 in the current directory if neither $RANDFILE nor $HOME was set.
4598 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4599 caused some confusion to Windows users who haven't defined $HOME.
4600 Thus RAND_file_name() is changed again: e_os.h can define a
4601 DEFAULT_HOME, which will be used if $HOME is not set.
4602 For Windows, we use "C:"; on other platforms, we still require
4603 environment variables.
4605 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4606 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4607 having multiple threads call RAND_poll() concurrently.
4610 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4611 combination of a flag and a thread ID variable.
4612 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4613 flag), *other* threads can enter ssleay_add_bytes without obeying
4614 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4615 that they do not hold after the first thread unsets add_do_not_lock).
4618 *) Change bctest again: '-x' expressions are not available in all
4622 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4624 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4625 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4627 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4628 the default extension for executables, if any. Also, make the perl
4629 scripts that use symlink() to test if it really exists and use "cp"
4630 if it doesn't. All this made OpenSSL compilable and installable in
4634 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4635 If SEQUENCE is length is indefinite just set c->slen to the total
4636 amount of data available.
4637 [Steve Henson, reported by shige@FreeBSD.org]
4638 [This change does not apply to 0.9.7.]
4640 *) Change bctest to avoid here-documents inside command substitution
4641 (workaround for FreeBSD /bin/sh bug).
4642 For compatibility with Ultrix, avoid shell functions (introduced
4643 in the bctest version that searches along $PATH).
4646 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4647 with des_encrypt() defined on some operating systems, like Solaris
4651 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4652 On the Importance of Eliminating Errors in Cryptographic
4653 Computations, J. Cryptology 14 (2001) 2, 101-119,
4654 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4657 *) MIPS assembler BIGNUM division bug fix.
4660 *) Disabled incorrect Alpha assembler code.
4663 *) Fix PKCS#7 decode routines so they correctly update the length
4664 after reading an EOC for the EXPLICIT tag.
4666 [This change does not apply to 0.9.7.]
4668 *) Fix bug in PKCS#12 key generation routines. This was triggered
4669 if a 3DES key was generated with a 0 initial byte. Include
4670 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4671 (but broken) behaviour.
4674 *) Enhance bctest to search for a working bc along $PATH and print
4676 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4678 *) Fix memory leaks in err.c: free err_data string if necessary;
4679 don't write to the wrong index in ERR_set_error_data.
4682 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4686 *) Replace rdtsc with _emit statements for VC++ version 5.
4687 [Jeremy Cooper <jeremy@baymoo.org>]
4689 *) Make it possible to reuse SSLv2 sessions.
4692 *) In copy_email() check for >= 0 as a return value for
4693 X509_NAME_get_index_by_NID() since 0 is a valid index.
4694 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4696 *) Avoid coredump with unsupported or invalid public keys by checking if
4697 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4698 PKCS7_verify() fails with non detached data.
4701 *) Don't use getenv in library functions when run as setuid/setgid.
4702 New function OPENSSL_issetugid().
4705 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4706 due to incorrect handling of multi-threading:
4708 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4710 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4712 3. Count how many times MemCheck_off() has been called so that
4713 nested use can be treated correctly. This also avoids
4714 inband-signalling in the previous code (which relied on the
4715 assumption that thread ID 0 is impossible).
4718 *) Add "-rand" option also to s_client and s_server.
4721 *) Fix CPU detection on Irix 6.x.
4722 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4723 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4725 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4728 [This change does not apply to 0.9.7.]
4730 *) Use the cached encoding of an X509_NAME structure rather than
4731 copying it. This is apparently the reason for the libsafe "errors"
4732 but the code is actually correct.
4735 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4736 Bleichenbacher's DSA attack.
4737 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4738 to be set and top=0 forces the highest bit to be set; top=-1 is new
4739 and leaves the highest bit random.
4740 [Ulf Moeller, Bodo Moeller]
4742 *) In the NCONF_...-based implementations for CONF_... queries
4743 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4744 a temporary CONF structure with the data component set to NULL
4745 (which gives segmentation faults in lh_retrieve).
4746 Instead, use NULL for the CONF pointer in CONF_get_string and
4747 CONF_get_number (which may use environment variables) and directly
4748 return NULL from CONF_get_section.
4751 *) Fix potential buffer overrun for EBCDIC.
4754 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4755 keyUsage if basicConstraints absent for a CA.
4758 *) Make SMIME_write_PKCS7() write mail header values with a format that
4759 is more generally accepted (no spaces before the semicolon), since
4760 some programs can't parse those values properly otherwise. Also make
4761 sure BIO's that break lines after each write do not create invalid
4765 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4766 macros previously used would not encode an empty SEQUENCE OF
4767 and break the signature.
4769 [This change does not apply to 0.9.7.]
4771 *) Zero the premaster secret after deriving the master secret in
4775 *) Add some EVP_add_digest_alias registrations (as found in
4776 OpenSSL_add_all_digests()) to SSL_library_init()
4777 aka OpenSSL_add_ssl_algorithms(). This provides improved
4778 compatibility with peers using X.509 certificates
4779 with unconventional AlgorithmIdentifier OIDs.
4782 *) Fix for Irix with NO_ASM.
4783 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4785 *) ./config script fixes.
4786 [Ulf Moeller, Richard Levitte]
4788 *) Fix 'openssl passwd -1'.
4791 *) Change PKCS12_key_gen_asc() so it can cope with non null
4792 terminated strings whose length is passed in the passlen
4793 parameter, for example from PEM callbacks. This was done
4794 by adding an extra length parameter to asc2uni().
4795 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4797 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4798 call failed, free the DSA structure.
4801 *) Fix to uni2asc() to cope with zero length Unicode strings.
4802 These are present in some PKCS#12 files.
4805 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4806 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4807 when writing a 32767 byte record.
4808 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4810 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4811 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4813 (RSA objects have a reference count access to which is protected
4814 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4815 so they are meant to be shared between threads.)
4816 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4817 "Reddie, Steven" <Steven.Reddie@ca.com>]
4819 *) Fix a deadlock in CRYPTO_mem_leaks().
4822 *) Use better test patterns in bntest.
4825 *) rand_win.c fix for Borland C.
4828 *) BN_rshift bugfix for n == 0.
4831 *) Add a 'bctest' script that checks for some known 'bc' bugs
4832 so that 'make test' does not abort just because 'bc' is broken.
4835 *) Store verify_result within SSL_SESSION also for client side to
4836 avoid potential security hole. (Re-used sessions on the client side
4837 always resulted in verify_result==X509_V_OK, not using the original
4838 result of the server certificate verification.)
4841 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4842 SSL3_RT_APPLICATION_DATA, return 0.
4843 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4847 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4848 releases, have been re-implemented by renaming the previous
4849 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4850 and ssl3_read_internal, respectively, and adding 'peek' parameters
4851 to them. The new ssl[23]_{read,peek} functions are calls to
4852 ssl[23]_read_internal with the 'peek' flag set appropriately.
4853 A 'peek' parameter has also been added to ssl3_read_bytes, which
4854 does the actual work for ssl3_read_internal.
4857 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4858 the method-specific "init()" handler. Also clean up ex_data after
4859 calling the method-specific "finish()" handler. Previously, this was
4860 happening the other way round.
4863 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4864 The previous value, 12, was not always sufficient for BN_mod_exp().
4867 *) Make sure that shared libraries get the internal name engine with
4868 the full version number and not just 0. This should mark the
4869 shared libraries as not backward compatible. Of course, this should
4870 be changed again when we can guarantee backward binary compatibility.
4873 *) Fix typo in get_cert_by_subject() in by_dir.c
4874 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4876 *) Rework the system to generate shared libraries:
4878 - Make note of the expected extension for the shared libraries and
4879 if there is a need for symbolic links from for example libcrypto.so.0
4880 to libcrypto.so.0.9.7. There is extended info in Configure for
4883 - Make as few rebuilds of the shared libraries as possible.
4885 - Still avoid linking the OpenSSL programs with the shared libraries.
4887 - When installing, install the shared libraries separately from the
4891 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4893 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4894 and not in SSL_clear because the latter is also used by the
4895 accept/connect functions; previously, the settings made by
4896 SSL_set_read_ahead would be lost during the handshake.
4897 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4899 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4900 Previously, it would create entries for disableed algorithms no
4904 *) Added several new manual pages for SSL_* function.
4907 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4909 *) In ssl23_get_client_hello, generate an error message when faced
4910 with an initial SSL 3.0/TLS record that is too small to contain the
4911 first two bytes of the ClientHello message, i.e. client_version.
4912 (Note that this is a pathologic case that probably has never happened
4913 in real life.) The previous approach was to use the version number
4914 from the record header as a substitute; but our protocol choice
4915 should not depend on that one because it is not authenticated
4916 by the Finished messages.
4919 *) More robust randomness gathering functions for Windows.
4920 [Jeffrey Altman <jaltman@columbia.edu>]
4922 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4923 not set then we don't setup the error code for issuer check errors
4924 to avoid possibly overwriting other errors which the callback does
4925 handle. If an application does set the flag then we assume it knows
4926 what it is doing and can handle the new informational codes
4930 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4931 a general "ANY" type, as such it should be able to decode anything
4932 including tagged types. However it didn't check the class so it would
4933 wrongly interpret tagged types in the same way as their universal
4934 counterpart and unknown types were just rejected. Changed so that the
4935 tagged and unknown types are handled in the same way as a SEQUENCE:
4936 that is the encoding is stored intact. There is also a new type
4937 "V_ASN1_OTHER" which is used when the class is not universal, in this
4938 case we have no idea what the actual type is so we just lump them all
4942 *) On VMS, stdout may very well lead to a file that is written to
4943 in a record-oriented fashion. That means that every write() will
4944 write a separate record, which will be read separately by the
4945 programs trying to read from it. This can be very confusing.
4947 The solution is to put a BIO filter in the way that will buffer
4948 text until a linefeed is reached, and then write everything a
4949 line at a time, so every record written will be an actual line,
4950 not chunks of lines and not (usually doesn't happen, but I've
4951 seen it once) several lines in one record. BIO_f_linebuffer() is
4954 Currently, it's a VMS-only method, because that's where it has
4955 been tested well enough.
4958 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4959 it can return incorrect results.
4960 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4961 but it was in 0.9.6-beta[12].)
4964 *) Disable the check for content being present when verifying detached
4965 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4966 include zero length content when signing messages.
4969 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4970 BIO_ctrl (for BIO pairs).
4973 *) Add DSO method for VMS.
4976 *) Bug fix: Montgomery multiplication could produce results with the
4980 *) Add RPM specification openssl.spec and modify it to build three
4981 packages. The default package contains applications, application
4982 documentation and run-time libraries. The devel package contains
4983 include files, static libraries and function documentation. The
4984 doc package contains the contents of the doc directory. The original
4985 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4988 *) Add a large number of documentation files for many SSL routines.
4989 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4991 *) Add a configuration entry for Sony News 4.
4992 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4994 *) Don't set the two most significant bits to one when generating a
4995 random number < q in the DSA library.
4998 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4999 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5000 the underlying transport is blocking) if a handshake took place.
5001 (The default behaviour is needed by applications such as s_client
5002 and s_server that use select() to determine when to use SSL_read;
5003 but for applications that know in advance when to expect data, it
5004 just makes things more complicated.)
5007 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5011 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5012 work better on such systems.
5013 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5015 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5016 Update PKCS12_parse() so it copies the friendlyName and the
5017 keyid to the certificates aux info.
5020 *) Fix bug in PKCS7_verify() which caused an infinite loop
5021 if there was more than one signature.
5022 [Sven Uszpelkat <su@celocom.de>]
5024 *) Major change in util/mkdef.pl to include extra information
5025 about each symbol, as well as presentig variables as well
5026 as functions. This change means that there's n more need
5027 to rebuild the .num files when some algorithms are excluded.
5030 *) Allow the verify time to be set by an application,
5031 rather than always using the current time.
5034 *) Phase 2 verify code reorganisation. The certificate
5035 verify code now looks up an issuer certificate by a
5036 number of criteria: subject name, authority key id
5037 and key usage. It also verifies self signed certificates
5038 by the same criteria. The main comparison function is
5039 X509_check_issued() which performs these checks.
5041 Lot of changes were necessary in order to support this
5042 without completely rewriting the lookup code.
5044 Authority and subject key identifier are now cached.
5046 The LHASH 'certs' is X509_STORE has now been replaced
5047 by a STACK_OF(X509_OBJECT). This is mainly because an
5048 LHASH can't store or retrieve multiple objects with
5049 the same hash value.
5051 As a result various functions (which were all internal
5052 use only) have changed to handle the new X509_STORE
5053 structure. This will break anything that messed round
5054 with X509_STORE internally.
5056 The functions X509_STORE_add_cert() now checks for an
5057 exact match, rather than just subject name.
5059 The X509_STORE API doesn't directly support the retrieval
5060 of multiple certificates matching a given criteria, however
5061 this can be worked round by performing a lookup first
5062 (which will fill the cache with candidate certificates)
5063 and then examining the cache for matches. This is probably
5064 the best we can do without throwing out X509_LOOKUP
5065 entirely (maybe later...).
5067 The X509_VERIFY_CTX structure has been enhanced considerably.
5069 All certificate lookup operations now go via a get_issuer()
5070 callback. Although this currently uses an X509_STORE it
5071 can be replaced by custom lookups. This is a simple way
5072 to bypass the X509_STORE hackery necessary to make this
5073 work and makes it possible to use more efficient techniques
5074 in future. A very simple version which uses a simple
5075 STACK for its trusted certificate store is also provided
5076 using X509_STORE_CTX_trusted_stack().
5078 The verify_cb() and verify() callbacks now have equivalents
5079 in the X509_STORE_CTX structure.
5081 X509_STORE_CTX also has a 'flags' field which can be used
5082 to customise the verify behaviour.
5085 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5086 excludes S/MIME capabilities.
5089 *) When a certificate request is read in keep a copy of the
5090 original encoding of the signed data and use it when outputing
5091 again. Signatures then use the original encoding rather than
5092 a decoded, encoded version which may cause problems if the
5093 request is improperly encoded.
5096 *) For consistency with other BIO_puts implementations, call
5097 buffer_write(b, ...) directly in buffer_puts instead of calling
5100 In BIO_puts, increment b->num_write as in BIO_write.
5101 [Peter.Sylvester@EdelWeb.fr]
5103 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5104 BN_zero, we may not return a BIGNUM with an array consisting of
5108 *) Avoid calling abort() from within the library when problems are
5109 detected, except if preprocessor symbols have been defined
5110 (such as REF_CHECK, BN_DEBUG etc.).
5113 *) New openssl application 'rsautl'. This utility can be
5114 used for low level RSA operations. DER public key
5115 BIO/fp routines also added.
5118 *) New Configure entry and patches for compiling on QNX 4.
5119 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5121 *) A demo state-machine implementation was sponsored by
5122 Nuron (http://www.nuron.com/) and is now available in
5123 demos/state_machine.
5126 *) New options added to the 'dgst' utility for signature
5127 generation and verification.
5130 *) Unrecognized PKCS#7 content types are now handled via a
5131 catch all ASN1_TYPE structure. This allows unsupported
5132 types to be stored as a "blob" and an application can
5133 encode and decode it manually.
5136 *) Fix various signed/unsigned issues to make a_strex.c
5138 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5140 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5141 length if passed a buffer. ASN1_INTEGER_to_BN failed
5142 if passed a NULL BN and its argument was negative.
5143 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5145 *) Modification to PKCS#7 encoding routines to output definite
5146 length encoding. Since currently the whole structures are in
5147 memory there's not real point in using indefinite length
5148 constructed encoding. However if OpenSSL is compiled with
5149 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5152 *) Added BIO_vprintf() and BIO_vsnprintf().
5155 *) Added more prefixes to parse for in the the strings written
5156 through a logging bio, to cover all the levels that are available
5157 through syslog. The prefixes are now:
5159 PANIC, EMERG, EMR => LOG_EMERG
5160 ALERT, ALR => LOG_ALERT
5161 CRIT, CRI => LOG_CRIT
5162 ERROR, ERR => LOG_ERR
5163 WARNING, WARN, WAR => LOG_WARNING
5164 NOTICE, NOTE, NOT => LOG_NOTICE
5165 INFO, INF => LOG_INFO
5166 DEBUG, DBG => LOG_DEBUG
5168 and as before, if none of those prefixes are present at the
5169 beginning of the string, LOG_ERR is chosen.
5171 On Win32, the LOG_* levels are mapped according to this:
5173 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5174 LOG_WARNING => EVENTLOG_WARNING_TYPE
5175 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5179 *) Made it possible to reconfigure with just the configuration
5180 argument "reconf" or "reconfigure". The command line arguments
5181 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5182 and are retrieved from there when reconfiguring.
5186 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5188 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5191 *) The obj_dat.pl script was messing up the sorting of object
5192 names. The reason was that it compared the quoted version
5193 of strings as a result "OCSP" > "OCSP Signing" because
5194 " > SPACE. Changed script to store unquoted versions of
5195 names and add quotes on output. It was also omitting some
5196 names from the lookup table if they were given a default
5197 value (that is if SN is missing it is given the same
5198 value as LN and vice versa), these are now added on the
5199 grounds that if an object has a name we should be able to
5200 look it up. Finally added warning output when duplicate
5201 short or long names are found.
5204 *) Changes needed for Tandem NSK.
5205 [Scott Uroff <scott@xypro.com>]
5207 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5208 RSA_padding_check_SSLv23(), special padding was never detected
5209 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5210 version rollback attacks was not effective.
5212 In s23_clnt.c, don't use special rollback-attack detection padding
5213 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5214 client; similarly, in s23_srvr.c, don't do the rollback check if
5215 SSL 2.0 is the only protocol enabled in the server.
5218 *) Make it possible to get hexdumps of unprintable data with 'openssl
5219 asn1parse'. By implication, the functions ASN1_parse_dump() and
5220 BIO_dump_indent() are added.
5223 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5224 these print out strings and name structures based on various
5225 flags including RFC2253 support and proper handling of
5226 multibyte characters. Added options to the 'x509' utility
5227 to allow the various flags to be set.
5230 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5231 Also change the functions X509_cmp_current_time() and
5232 X509_gmtime_adj() work with an ASN1_TIME structure,
5233 this will enable certificates using GeneralizedTime in validity
5234 dates to be checked.
5237 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5238 negative public key encodings) on by default,
5239 NO_NEG_PUBKEY_BUG can be set to disable it.
5242 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5243 content octets. An i2c_ASN1_OBJECT is unnecessary because
5244 the encoding can be trivially obtained from the structure.
5247 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5248 not read locks (CRYPTO_r_[un]lock).
5251 *) A first attempt at creating official support for shared
5252 libraries through configuration. I've kept it so the
5253 default is static libraries only, and the OpenSSL programs
5254 are always statically linked for now, but there are
5255 preparations for dynamic linking in place.
5256 This has been tested on Linux and Tru64.
5259 *) Randomness polling function for Win9x, as described in:
5260 Peter Gutmann, Software Generation of Practically Strong
5264 *) Fix so PRNG is seeded in req if using an already existing
5268 *) New options to smime application. -inform and -outform
5269 allow alternative formats for the S/MIME message including
5270 PEM and DER. The -content option allows the content to be
5271 specified separately. This should allow things like Netscape
5272 form signing output easier to verify.
5275 *) Fix the ASN1 encoding of tags using the 'long form'.
5278 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5279 STRING types. These convert content octets to and from the
5280 underlying type. The actual tag and length octets are
5281 already assumed to have been read in and checked. These
5282 are needed because all other string types have virtually
5283 identical handling apart from the tag. By having versions
5284 of the ASN1 functions that just operate on content octets
5285 IMPLICIT tagging can be handled properly. It also allows
5286 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5287 and ASN1_INTEGER are identical apart from the tag.
5290 *) Change the handling of OID objects as follows:
5292 - New object identifiers are inserted in objects.txt, following
5293 the syntax given in objects.README.
5294 - objects.pl is used to process obj_mac.num and create a new
5296 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5299 This is currently kind of a hack, and the perl code in objects.pl
5300 isn't very elegant, but it works as I intended. The simplest way
5301 to check that it worked correctly is to look in obj_dat.h and
5302 check the array nid_objs and make sure the objects haven't moved
5303 around (this is important!). Additions are OK, as well as
5304 consistent name changes.
5307 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5310 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5311 The given file adds to whatever has already been seeded into the
5312 random pool through the RANDFILE configuration file option or
5313 environment variable, or the default random state file.
5316 *) mkstack.pl now sorts each macro group into lexical order.
5317 Previously the output order depended on the order the files
5318 appeared in the directory, resulting in needless rewriting
5322 *) Patches to make OpenSSL compile under Win32 again. Mostly
5323 work arounds for the VC++ problem that it treats func() as
5324 func(void). Also stripped out the parts of mkdef.pl that
5325 added extra typesafe functions: these no longer exist.
5328 *) Reorganisation of the stack code. The macros are now all
5329 collected in safestack.h . Each macro is defined in terms of
5330 a "stack macro" of the form SKM_<name>(type, a, b). The
5331 DEBUG_SAFESTACK is now handled in terms of function casts,
5332 this has the advantage of retaining type safety without the
5333 use of additional functions. If DEBUG_SAFESTACK is not defined
5334 then the non typesafe macros are used instead. Also modified the
5335 mkstack.pl script to handle the new form. Needs testing to see
5336 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5337 the default if no major problems. Similar behaviour for ASN1_SET_OF
5338 and PKCS12_STACK_OF.
5341 *) When some versions of IIS use the 'NET' form of private key the
5342 key derivation algorithm is different. Normally MD5(password) is
5343 used as a 128 bit RC4 key. In the modified case
5344 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5345 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5346 as the old Netscape_RSA functions except they have an additional
5347 'sgckey' parameter which uses the modified algorithm. Also added
5348 an -sgckey command line option to the rsa utility. Thanks to
5349 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5350 algorithm to openssl-dev.
5353 *) The evp_local.h macros were using 'c.##kname' which resulted in
5354 invalid expansion on some systems (SCO 5.0.5 for example).
5355 Corrected to 'c.kname'.
5356 [Phillip Porch <root@theporch.com>]
5358 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5359 a STACK of email addresses from a certificate or request, these look
5360 in the subject name and the subject alternative name extensions and
5361 omit any duplicate addresses.
5364 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5365 This makes DSA verification about 2 % faster.
5368 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5369 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5370 plus overhead for 1024 bit moduli).
5371 This makes exponentiations about 0.5 % faster for 1024 bit
5372 exponents (as measured by "openssl speed rsa2048").
5375 *) Rename memory handling macros to avoid conflicts with other
5377 Malloc => OPENSSL_malloc
5378 Malloc_locked => OPENSSL_malloc_locked
5379 Realloc => OPENSSL_realloc
5380 Free => OPENSSL_free
5383 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5384 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5387 *) CygWin32 support.
5388 [John Jarvie <jjarvie@newsguy.com>]
5390 *) The type-safe stack code has been rejigged. It is now only compiled
5391 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5392 by default all type-specific stack functions are "#define"d back to
5393 standard stack functions. This results in more streamlined output
5394 but retains the type-safety checking possibilities of the original
5398 *) The STACK code has been cleaned up, and certain type declarations
5399 that didn't make a lot of sense have been brought in line. This has
5400 also involved a cleanup of sorts in safestack.h to more correctly
5401 map type-safe stack functions onto their plain stack counterparts.
5402 This work has also resulted in a variety of "const"ifications of
5403 lots of the code, especially "_cmp" operations which should normally
5404 be prototyped with "const" parameters anyway.
5407 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5408 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5409 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5410 where all of 'md' is used each time the PRNG is used, but 'state'
5411 is used only indexed by a cyclic counter. As entropy may not be
5412 well distributed from the beginning, 'md' is important as a
5413 chaining variable. However, the output function chains only half
5414 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5415 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5416 in all of 'state' being rewritten, with the new values depending
5417 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5420 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5421 the handshake is continued after ssl_verify_cert_chain();
5422 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5423 can lead to 'unexplainable' connection aborts later.
5424 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5426 *) Major EVP API cipher revision.
5427 Add hooks for extra EVP features. This allows various cipher
5428 parameters to be set in the EVP interface. Support added for variable
5429 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5430 setting of RC2 and RC5 parameters.
5432 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5435 Remove lots of duplicated code from the EVP library. For example *every*
5436 cipher init() function handles the 'iv' in the same way according to the
5437 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5438 for CFB and OFB modes they zero ctx->num.
5440 New functionality allows removal of S/MIME code RC2 hack.
5442 Most of the routines have the same form and so can be declared in terms
5445 By shifting this to the top level EVP_CipherInit() it can be removed from
5446 all individual ciphers. If the cipher wants to handle IVs or keys
5447 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5450 Change lots of functions like EVP_EncryptUpdate() to now return a
5451 value: although software versions of the algorithms cannot fail
5452 any installed hardware versions can.
5455 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5456 this option is set, tolerate broken clients that send the negotiated
5457 protocol version number instead of the requested protocol version
5461 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5462 i.e. non-zero for export ciphersuites, zero otherwise.
5463 Previous versions had this flag inverted, inconsistent with
5464 rsa_tmp_cb (..._TMP_RSA_CB).
5465 [Bodo Moeller; problem reported by Amit Chopra]
5467 *) Add missing DSA library text string. Work around for some IIS
5468 key files with invalid SEQUENCE encoding.
5471 *) Add a document (doc/standards.txt) that list all kinds of standards
5472 and so on that are implemented in OpenSSL.
5475 *) Enhance c_rehash script. Old version would mishandle certificates
5476 with the same subject name hash and wouldn't handle CRLs at all.
5477 Added -fingerprint option to crl utility, to support new c_rehash
5481 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5484 *) Fix for SSL server purpose checking. Server checking was
5485 rejecting certificates which had extended key usage present
5486 but no ssl client purpose.
5487 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5489 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5490 is a little unclear about how a blank password is handled.
5491 Since the password in encoded as a BMPString with terminating
5492 double NULL a zero length password would end up as just the
5493 double NULL. However no password at all is different and is
5494 handled differently in the PKCS#12 key generation code. NS
5495 treats a blank password as zero length. MSIE treats it as no
5496 password on export: but it will try both on import. We now do
5497 the same: PKCS12_parse() tries zero length and no password if
5498 the password is set to "" or NULL (NULL is now a valid password:
5499 it wasn't before) as does the pkcs12 application.
5502 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5503 perror when PEM_read_bio_X509_REQ fails, the error message must
5504 be obtained from the error queue.
5507 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5508 it in ERR_remove_state if appropriate, and change ERR_get_state
5509 accordingly to avoid race conditions (this is necessary because
5510 thread_hash is no longer constant once set).
5513 *) Bugfix for linux-elf makefile.one.
5516 *) RSA_get_default_method() will now cause a default
5517 RSA_METHOD to be chosen if one doesn't exist already.
5518 Previously this was only set during a call to RSA_new()
5519 or RSA_new_method(NULL) meaning it was possible for
5520 RSA_get_default_method() to return NULL.
5523 *) Added native name translation to the existing DSO code
5524 that will convert (if the flag to do so is set) filenames
5525 that are sufficiently small and have no path information
5526 into a canonical native form. Eg. "blah" converted to
5527 "libblah.so" or "blah.dll" etc.
5530 *) New function ERR_error_string_n(e, buf, len) which is like
5531 ERR_error_string(e, buf), but writes at most 'len' bytes
5532 including the 0 terminator. For ERR_error_string_n, 'buf'
5534 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5536 *) CONF library reworked to become more general. A new CONF
5537 configuration file reader "class" is implemented as well as a
5538 new functions (NCONF_*, for "New CONF") to handle it. The now
5539 old CONF_* functions are still there, but are reimplemented to
5540 work in terms of the new functions. Also, a set of functions
5541 to handle the internal storage of the configuration data is
5542 provided to make it easier to write new configuration file
5543 reader "classes" (I can definitely see something reading a
5544 configuration file in XML format, for example), called _CONF_*,
5545 or "the configuration storage API"...
5547 The new configuration file reading functions are:
5549 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5550 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5552 NCONF_default, NCONF_WIN32
5554 NCONF_dump_fp, NCONF_dump_bio
5556 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5557 NCONF_new creates a new CONF object. This works in the same way
5558 as other interfaces in OpenSSL, like the BIO interface.
5559 NCONF_dump_* dump the internal storage of the configuration file,
5560 which is useful for debugging. All other functions take the same
5561 arguments as the old CONF_* functions wth the exception of the
5562 first that must be a `CONF *' instead of a `LHASH *'.
5564 To make it easer to use the new classes with the old CONF_* functions,
5565 the function CONF_set_default_method is provided.
5568 *) Add '-tls1' option to 'openssl ciphers', which was already
5569 mentioned in the documentation but had not been implemented.
5570 (This option is not yet really useful because even the additional
5571 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5574 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5575 OpenSSL-based applications) load shared libraries and bind to
5576 them in a portable way.
5577 [Geoff Thorpe, with contributions from Richard Levitte]
5579 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5581 *) Make sure _lrotl and _lrotr are only used with MSVC.
5583 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5584 (the default implementation of RAND_status).
5586 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5587 to '-clrext' (= clear extensions), as intended and documented.
5588 [Bodo Moeller; inconsistency pointed out by Michael Attili
5591 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5592 was larger than the MD block size.
5593 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5595 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5596 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5597 using the passed key: if the passed key was a private key the result
5598 of X509_print(), for example, would be to print out all the private key
5602 *) des_quad_cksum() byte order bug fix.
5603 [Ulf Möller, using the problem description in krb4-0.9.7, where
5604 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5606 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5608 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5610 *) For easily testing in shell scripts whether some command
5611 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5612 returns with exit code 0 iff no command of the given name is available.
5613 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5614 the output goes to stdout and nothing is printed to stderr.
5615 Additional arguments are always ignored.
5617 Since for each cipher there is a command of the same name,
5618 the 'no-cipher' compilation switches can be tested this way.
5620 ('openssl no-XXX' is not able to detect pseudo-commands such
5621 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5624 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5627 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5628 is set; it will be thrown away anyway because each handshake creates
5630 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5631 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5632 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5633 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5636 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5637 'Q' and 'R' lose their special meanings (quit/renegotiate).
5638 This is part of what -quiet does; unlike -quiet, -ign_eof
5639 does not suppress any output.
5642 *) Add compatibility options to the purpose and trust code. The
5643 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5644 accepts a certificate or CA, this was the previous behaviour,
5645 with all the associated security issues.
5647 X509_TRUST_COMPAT is the old trust behaviour: only and
5648 automatically trust self signed roots in certificate store. A
5649 new trust setting X509_TRUST_DEFAULT is used to specify that
5650 a purpose has no associated trust setting and it should instead
5651 use the value in the default purpose.
5654 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5655 and fix a memory leak.
5658 *) In util/mkerr.pl (which implements 'make errors'), preserve
5659 reason strings from the previous version of the .c file, as
5660 the default to have only downcase letters (and digits) in
5661 automatically generated reasons codes is not always appropriate.
5664 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5665 using strerror. Previously, ERR_reason_error_string() returned
5666 library names as reason strings for SYSerr; but SYSerr is a special
5667 case where small numbers are errno values, not library numbers.
5670 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5671 converts DSA parameters into DH parameters. (When creating parameters,
5672 DSA_generate_parameters is used.)
5675 *) Include 'length' (recommended exponent length) in C code generated
5676 by 'openssl dhparam -C'.
5679 *) The second argument to set_label in perlasm was already being used
5680 so couldn't be used as a "file scope" flag. Moved to third argument
5684 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5685 instead of RAND_bytes for encryption IVs and salts.
5688 *) Include RAND_status() into RAND_METHOD instead of implementing
5689 it only for md_rand.c Otherwise replacing the PRNG by calling
5690 RAND_set_rand_method would be impossible.
5693 *) Don't let DSA_generate_key() enter an infinite loop if the random
5694 number generation fails.
5697 *) New 'rand' application for creating pseudo-random output.
5700 *) Added configuration support for Linux/IA64
5701 [Rolf Haberrecker <rolf@suse.de>]
5703 *) Assembler module support for Mingw32.
5706 *) Shared library support for HPUX (in shlib/).
5707 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5709 *) Shared library support for Solaris gcc.
5710 [Lutz Behnke <behnke@trustcenter.de>]
5712 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5714 *) PKCS7_encrypt() was adding text MIME headers twice because they
5715 were added manually and by SMIME_crlf_copy().
5718 *) In bntest.c don't call BN_rand with zero bits argument.
5719 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5721 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5722 case was implemented. This caused BN_div_recp() to fail occasionally.
5725 *) Add an optional second argument to the set_label() in the perl
5726 assembly language builder. If this argument exists and is set
5727 to 1 it signals that the assembler should use a symbol whose
5728 scope is the entire file, not just the current function. This
5729 is needed with MASM which uses the format label:: for this scope.
5730 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5732 *) Change the ASN1 types so they are typedefs by default. Before
5733 almost all types were #define'd to ASN1_STRING which was causing
5734 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5738 *) Change names of new functions to the new get1/get0 naming
5739 convention: After 'get1', the caller owns a reference count
5740 and has to call ..._free; 'get0' returns a pointer to some
5741 data structure without incrementing reference counters.
5742 (Some of the existing 'get' functions increment a reference
5743 counter, some don't.)
5744 Similarly, 'set1' and 'add1' functions increase reference
5745 counters or duplicate objects.
5748 *) Allow for the possibility of temp RSA key generation failure:
5749 the code used to assume it always worked and crashed on failure.
5752 *) Fix potential buffer overrun problem in BIO_printf().
5753 [Ulf Möller, using public domain code by Patrick Powell; problem
5754 pointed out by David Sacerdote <das33@cornell.edu>]
5756 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5757 RAND_egd() and RAND_status(). In the command line application,
5758 the EGD socket can be specified like a seed file using RANDFILE
5762 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5763 Some CAs (e.g. Verisign) distribute certificates in this form.
5766 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5767 list to exclude them. This means that no special compilation option
5768 is needed to use anonymous DH: it just needs to be included in the
5772 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5773 EVP_MD_type. The old functionality is available in a new macro called
5774 EVP_MD_md(). Change code that uses it and update docs.
5777 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5778 where the 'void *' argument is replaced by a function pointer argument.
5779 Previously 'void *' was abused to point to functions, which works on
5780 many platforms, but is not correct. As these functions are usually
5781 called by macros defined in OpenSSL header files, most source code
5782 should work without changes.
5785 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5786 sections with information on -D... compiler switches used for
5787 compiling the library so that applications can see them. To enable
5788 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5789 must be defined. E.g.,
5790 #define OPENSSL_ALGORITHM_DEFINES
5791 #include <openssl/opensslconf.h>
5792 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5793 [Richard Levitte, Ulf and Bodo Möller]
5795 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5799 *) Change the 'other' type in certificate aux info to a STACK_OF
5800 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5801 the required ASN1 format: arbitrary types determined by an OID.
5804 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5805 argument to 'req'. This is not because the function is newer or
5806 better than others it just uses the work 'NEW' in the certificate
5807 request header lines. Some software needs this.
5810 *) Reorganise password command line arguments: now passwords can be
5811 obtained from various sources. Delete the PEM_cb function and make
5812 it the default behaviour: i.e. if the callback is NULL and the
5813 usrdata argument is not NULL interpret it as a null terminated pass
5814 phrase. If usrdata and the callback are NULL then the pass phrase
5815 is prompted for as usual.
5818 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5819 the support is automatically enabled. The resulting binaries will
5820 autodetect the card and use it if present.
5821 [Ben Laurie and Compaq Inc.]
5823 *) Work around for Netscape hang bug. This sends certificate request
5824 and server done in one record. Since this is perfectly legal in the
5825 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5826 the bugs/SSLv3 entry for more info.
5829 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5832 *) Add -rand argument to smime and pkcs12 applications and read/write
5836 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5839 *) Add command line password options to the remaining applications.
5842 *) Bug fix for BN_div_recp() for numerators with an even number of
5846 *) More tests in bntest.c, and changed test_bn output.
5849 *) ./config recognizes MacOS X now.
5852 *) Bug fix for BN_div() when the first words of num and divsor are
5853 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5856 *) Add support for various broken PKCS#8 formats, and command line
5857 options to produce them.
5860 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5861 get temporary BIGNUMs from a BN_CTX.
5864 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5868 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5869 include a #define from the old name to the new. The original intent
5870 was that statically linked binaries could for example just call
5871 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5872 link with digests. This never worked becayse SSLeay_add_all_digests()
5873 and SSLeay_add_all_ciphers() were in the same source file so calling
5874 one would link with the other. They are now in separate source files.
5877 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5880 *) Use a less unusual form of the Miller-Rabin primality test (it used
5881 a binary algorithm for exponentiation integrated into the Miller-Rabin
5882 loop, our standard modexp algorithms are faster).
5885 *) Support for the EBCDIC character set completed.
5886 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5888 *) Source code cleanups: use const where appropriate, eliminate casts,
5889 use void * instead of char * in lhash.
5892 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5893 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5894 this the server could overwrite ephemeral keys that the client
5898 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5899 using 50 iterations of the Rabin-Miller test.
5901 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5902 iterations of the Rabin-Miller test as required by the appendix
5903 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5904 As BN_is_prime_fasttest includes trial division, DSA parameter
5905 generation becomes much faster.
5907 This implies a change for the callback functions in DSA_is_prime
5908 and DSA_generate_parameters: The callback function is called once
5909 for each positive witness in the Rabin-Miller test, not just
5910 occasionally in the inner loop; and the parameters to the
5911 callback function now provide an iteration count for the outer
5912 loop rather than for the current invocation of the inner loop.
5913 DSA_generate_parameters additionally can call the callback
5914 function with an 'iteration count' of -1, meaning that a
5915 candidate has passed the trial division test (when q is generated
5916 from an application-provided seed, trial division is skipped).
5919 *) New function BN_is_prime_fasttest that optionally does trial
5920 division before starting the Rabin-Miller test and has
5921 an additional BN_CTX * argument (whereas BN_is_prime always
5922 has to allocate at least one BN_CTX).
5923 'callback(1, -1, cb_arg)' is called when a number has passed the
5924 trial division stage.
5927 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5931 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5934 *) New function BN_pseudo_rand().
5937 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5938 bignum version of BN_from_montgomery() with the working code from
5939 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5943 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5944 made it impossible to use the same SSL_SESSION data structure in
5945 SSL2 clients in multiple threads.
5948 *) The return value of RAND_load_file() no longer counts bytes obtained
5949 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5950 to seed the PRNG (previously an explicit byte count was required).
5951 [Ulf Möller, Bodo Möller]
5953 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5954 used (char *) instead of (void *) and had casts all over the place.
5957 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5960 *) Retain source code compatibility for BN_prime_checks macro:
5961 BN_is_prime(..., BN_prime_checks, ...) now uses
5962 BN_prime_checks_for_size to determine the appropriate number of
5963 Rabin-Miller iterations.
5966 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5967 DH_CHECK_P_NOT_SAFE_PRIME.
5968 (Check if this is true? OpenPGP calls them "strong".)
5971 *) Merge the functionality of "dh" and "gendh" programs into a new program
5972 "dhparam". The old programs are retained for now but will handle DH keys
5973 (instead of parameters) in future.
5976 *) Make the ciphers, s_server and s_client programs check the return values
5977 when a new cipher list is set.
5980 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5981 ciphers. Before when the 56bit ciphers were enabled the sorting was
5984 The syntax for the cipher sorting has been extended to support sorting by
5985 cipher-strength (using the strength_bits hard coded in the tables).
5986 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5988 Fix a bug in the cipher-command parser: when supplying a cipher command
5989 string with an "undefined" symbol (neither command nor alphanumeric
5990 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5991 an error is flagged.
5993 Due to the strength-sorting extension, the code of the
5994 ssl_create_cipher_list() function was completely rearranged. I hope that
5995 the readability was also increased :-)
5996 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5998 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5999 for the first serial number and places 2 in the serial number file. This
6000 avoids problems when the root CA is created with serial number zero and
6001 the first user certificate has the same issuer name and serial number
6005 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6006 the new code. Add documentation for this stuff.
6009 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6010 X509_*() to X509at_*() on the grounds that they don't handle X509
6011 structures and behave in an analagous way to the X509v3 functions:
6012 they shouldn't be called directly but wrapper functions should be used
6015 So we also now have some wrapper functions that call the X509at functions
6016 when passed certificate requests. (TO DO: similar things can be done with
6017 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6018 things. Some of these need some d2i or i2d and print functionality
6019 because they handle more complex structures.)
6022 *) Add missing #ifndefs that caused missing symbols when building libssl
6023 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6024 NO_RSA in ssl/s2*.c.
6025 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6027 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6028 has a return value which indicates the quality of the random data
6029 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6030 error queue. New function RAND_pseudo_bytes() generates output that is
6031 guaranteed to be unique but not unpredictable. RAND_add is like
6032 RAND_seed, but takes an extra argument for an entropy estimate
6033 (RAND_seed always assumes full entropy).
6036 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6037 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6038 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6039 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6040 false-positive rate of at most 2^-80 for random input.
6043 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6046 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6047 in the 0.9.5 release), this returns the chain
6048 from an X509_CTX structure with a dup of the stack and all
6049 the X509 reference counts upped: so the stack will exist
6050 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6053 Also make SSL_SESSION_print() print out the verify return
6057 *) Add manpage for the pkcs12 command. Also change the default
6058 behaviour so MAC iteration counts are used unless the new
6059 -nomaciter option is used. This improves file security and
6060 only older versions of MSIE (4.0 for example) need it.
6063 *) Honor the no-xxx Configure options when creating .DEF files.
6066 *) Add PKCS#10 attributes to field table: challengePassword,
6067 unstructuredName and unstructuredAddress. These are taken from
6068 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6069 international characters are used.
6071 More changes to X509_ATTRIBUTE code: allow the setting of types
6072 based on strings. Remove the 'loc' parameter when adding
6073 attributes because these will be a SET OF encoding which is sorted
6077 *) Initial changes to the 'req' utility to allow request generation
6078 automation. This will allow an application to just generate a template
6079 file containing all the field values and have req construct the
6082 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6083 used all over the place including certificate requests and PKCS#7
6084 structures. They are currently handled manually where necessary with
6085 some primitive wrappers for PKCS#7. The new functions behave in a
6086 manner analogous to the X509 extension functions: they allow
6087 attributes to be looked up by NID and added.
6089 Later something similar to the X509V3 code would be desirable to
6090 automatically handle the encoding, decoding and printing of the
6091 more complex types. The string types like challengePassword can
6092 be handled by the string table functions.
6094 Also modified the multi byte string table handling. Now there is
6095 a 'global mask' which masks out certain types. The table itself
6096 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6097 is useful when for example there is only one permissible type
6098 (as in countryName) and using the mask might result in no valid
6102 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6103 SSL_get_peer_finished to allow applications to obtain the latest
6104 Finished messages sent to the peer or expected from the peer,
6105 respectively. (SSL_get_peer_finished is usually the Finished message
6106 actually received from the peer, otherwise the protocol will be aborted.)
6108 As the Finished message are message digests of the complete handshake
6109 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6110 be used for external authentication procedures when the authentication
6111 provided by SSL/TLS is not desired or is not enough.
6114 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6115 the host supports BWX extension and if Compaq C is present on the
6116 $PATH. Just exploiting of the BWX extension results in 20-30%
6117 performance kick for some algorithms, e.g. DES and RC4 to mention
6118 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6122 *) Add support for MS "fast SGC". This is arguably a violation of the
6123 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6124 weak crypto and after checking the certificate is SGC a second one
6125 with strong crypto. MS SGC stops the first handshake after receiving
6126 the server certificate message and sends a second client hello. Since
6127 a server will typically do all the time consuming operations before
6128 expecting any further messages from the client (server key exchange
6129 is the most expensive) there is little difference between the two.
6131 To get OpenSSL to support MS SGC we have to permit a second client
6132 hello message after we have sent server done. In addition we have to
6133 reset the MAC if we do get this second client hello.
6136 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6137 if a DER encoded private key is RSA or DSA traditional format. Changed
6138 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6139 format DER encoded private key. Newer code should use PKCS#8 format which
6140 has the key type encoded in the ASN1 structure. Added DER private key
6141 support to pkcs8 application.
6144 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6145 ciphersuites has been selected (as required by the SSL 3/TLS 1
6146 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6147 is set, we interpret this as a request to violate the specification
6148 (the worst that can happen is a handshake failure, and 'correct'
6149 behaviour would result in a handshake failure anyway).
6152 *) In SSL_CTX_add_session, take into account that there might be multiple
6153 SSL_SESSION structures with the same session ID (e.g. when two threads
6154 concurrently obtain them from an external cache).
6155 The internal cache can handle only one SSL_SESSION with a given ID,
6156 so if there's a conflict, we now throw out the old one to achieve
6160 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6161 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6162 some routines that use cipher OIDs: some ciphers do not have OIDs
6163 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6167 *) Simplify the trust setting structure and code. Now we just have
6168 two sequences of OIDs for trusted and rejected settings. These will
6169 typically have values the same as the extended key usage extension
6170 and any application specific purposes.
6172 The trust checking code now has a default behaviour: it will just
6173 check for an object with the same NID as the passed id. Functions can
6174 be provided to override either the default behaviour or the behaviour
6175 for a given id. SSL client, server and email already have functions
6176 in place for compatibility: they check the NID and also return "trusted"
6177 if the certificate is self signed.
6180 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6181 traditional format into an EVP_PKEY structure.
6184 *) Add a password callback function PEM_cb() which either prompts for
6185 a password if usr_data is NULL or otherwise assumes it is a null
6186 terminated password. Allow passwords to be passed on command line
6187 environment or config files in a few more utilities.
6190 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6191 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6192 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6193 Update documentation.
6196 *) Support for ASN1 "NULL" type. This could be handled before by using
6197 ASN1_TYPE but there wasn't any function that would try to read a NULL
6198 and produce an error if it couldn't. For compatibility we also have
6199 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6200 don't allocate anything because they don't need to.
6203 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6205 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6207 *) Rebuild of the memory allocation routines used by OpenSSL code and
6208 possibly others as well. The purpose is to make an interface that
6209 provide hooks so anyone can build a separate set of allocation and
6210 deallocation routines to be used by OpenSSL, for example memory
6211 pool implementations, or something else, which was previously hard
6212 since Malloc(), Realloc() and Free() were defined as macros having
6213 the values malloc, realloc and free, respectively (except for Win32
6214 compilations). The same is provided for memory debugging code.
6215 OpenSSL already comes with functionality to find memory leaks, but
6216 this gives people a chance to debug other memory problems.
6218 With these changes, a new set of functions and macros have appeared:
6220 CRYPTO_set_mem_debug_functions() [F]
6221 CRYPTO_get_mem_debug_functions() [F]
6222 CRYPTO_dbg_set_options() [F]
6223 CRYPTO_dbg_get_options() [F]
6224 CRYPTO_malloc_debug_init() [M]
6226 The memory debug functions are NULL by default, unless the library
6227 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6228 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6229 gives the standard debugging functions that come with OpenSSL) or
6230 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6231 provided by the library user) must be used. When the standard
6232 debugging functions are used, CRYPTO_dbg_set_options can be used to
6233 request additional information:
6234 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6235 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6237 Also, things like CRYPTO_set_mem_functions will always give the
6238 expected result (the new set of functions is used for allocation
6239 and deallocation) at all times, regardless of platform and compiler
6242 To finish it up, some functions that were never use in any other
6243 way than through macros have a new API and new semantic:
6246 CRYPTO_dbg_realloc()
6249 All macros of value have retained their old syntax.
6250 [Richard Levitte and Bodo Moeller]
6252 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6253 ordering of SMIMECapabilities wasn't in "strength order" and there
6254 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6258 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6259 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6260 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6262 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6263 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6264 functionality to handle multipart/signed properly) and a utility
6265 called 'smime' to call all this stuff. This is based on code I
6266 originally wrote for Celo who have kindly allowed it to be
6267 included in OpenSSL.
6270 *) Add variants des_set_key_checked and des_set_key_unchecked of
6271 des_set_key (aka des_key_sched). Global variable des_check_key
6272 decides which of these is called by des_set_key; this way
6273 des_check_key behaves as it always did, but applications and
6274 the library itself, which was buggy for des_check_key == 1,
6275 have a cleaner way to pick the version they need.
6278 *) New function PKCS12_newpass() which changes the password of a
6282 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6283 dynamic mix. In both cases the ids can be used as an index into the
6284 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6285 functions so they accept a list of the field values and the
6286 application doesn't need to directly manipulate the X509_TRUST
6290 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6294 *) Modify the way the V3 extension code looks up extensions. This now
6295 works in a similar way to the object code: we have some "standard"
6296 extensions in a static table which is searched with OBJ_bsearch()
6297 and the application can add dynamic ones if needed. The file
6298 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6299 updated whenever a new extension is added to the core code and kept
6300 in ext_nid order. There is a simple program 'tabtest.c' which checks
6301 this. New extensions are not added too often so this file can readily
6302 be maintained manually.
6304 There are two big advantages in doing things this way. The extensions
6305 can be looked up immediately and no longer need to be "added" using
6306 X509V3_add_standard_extensions(): this function now does nothing.
6307 [Side note: I get *lots* of email saying the extension code doesn't
6308 work because people forget to call this function]
6309 Also no dynamic allocation is done unless new extensions are added:
6310 so if we don't add custom extensions there is no need to call
6311 X509V3_EXT_cleanup().
6314 *) Modify enc utility's salting as follows: make salting the default. Add a
6315 magic header, so unsalted files fail gracefully instead of just decrypting
6316 to garbage. This is because not salting is a big security hole, so people
6317 should be discouraged from doing it.
6320 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6321 digest to be passed on the command line but it only used this
6322 parameter when signing a certificate. Modified so all relevant
6323 operations are affected by the digest parameter including the
6324 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6325 DSA key was used because it didn't fix the digest.
6328 *) Initial certificate chain verify code. Currently tests the untrusted
6329 certificates for consistency with the verify purpose (which is set
6330 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6332 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6333 this is because it will reject chains with invalid extensions whereas
6334 every previous version of OpenSSL and SSLeay made no checks at all.
6336 Trust code: checks the root CA for the relevant trust settings. Trust
6337 settings have an initial value consistent with the verify purpose: e.g.
6338 if the verify purpose is for SSL client use it expects the CA to be
6339 trusted for SSL client use. However the default value can be changed to
6340 permit custom trust settings: one example of this would be to only trust
6341 certificates from a specific "secure" set of CAs.
6343 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6344 which should be used for version portability: especially since the
6345 verify structure is likely to change more often now.
6347 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6348 to set them. If not set then assume SSL clients will verify SSL servers
6351 Two new options to the verify program: -untrusted allows a set of
6352 untrusted certificates to be passed in and -purpose which sets the
6353 intended purpose of the certificate. If a purpose is set then the
6354 new chain verify code is used to check extension consistency.
6357 *) Support for the authority information access extension.
6360 *) Modify RSA and DSA PEM read routines to transparently handle
6361 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6362 public keys in a format compatible with certificate
6363 SubjectPublicKeyInfo structures. Unfortunately there were already
6364 functions called *_PublicKey_* which used various odd formats so
6365 these are retained for compatibility: however the DSA variants were
6366 never in a public release so they have been deleted. Changed dsa/rsa
6367 utilities to handle the new format: note no releases ever handled public
6368 keys so we should be OK.
6370 The primary motivation for this change is to avoid the same fiasco
6371 that dogs private keys: there are several incompatible private key
6372 formats some of which are standard and some OpenSSL specific and
6373 require various evil hacks to allow partial transparent handling and
6374 even then it doesn't work with DER formats. Given the option anything
6375 other than PKCS#8 should be dumped: but the other formats have to
6376 stay in the name of compatibility.
6378 With public keys and the benefit of hindsight one standard format
6379 is used which works with EVP_PKEY, RSA or DSA structures: though
6380 it clearly returns an error if you try to read the wrong kind of key.
6382 Added a -pubkey option to the 'x509' utility to output the public key.
6383 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6384 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6385 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6386 that do the same as the EVP_PKEY_assign_*() except they up the
6387 reference count of the added key (they don't "swallow" the
6391 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6392 CRLs would fail if the file contained no certificates or no CRLs:
6393 added a new function to read in both types and return the number
6394 read: this means that if none are read it will be an error. The
6395 DER versions of the certificate and CRL reader would always fail
6396 because it isn't possible to mix certificates and CRLs in DER format
6397 without choking one or the other routine. Changed this to just read
6398 a certificate: this is the best we can do. Also modified the code
6399 in apps/verify.c to take notice of return codes: it was previously
6400 attempting to read in certificates from NULL pointers and ignoring
6401 any errors: this is one reason why the cert and CRL reader seemed
6402 to work. It doesn't check return codes from the default certificate
6403 routines: these may well fail if the certificates aren't installed.
6406 *) Code to support otherName option in GeneralName.
6409 *) First update to verify code. Change the verify utility
6410 so it warns if it is passed a self signed certificate:
6411 for consistency with the normal behaviour. X509_verify
6412 has been modified to it will now verify a self signed
6413 certificate if *exactly* the same certificate appears
6414 in the store: it was previously impossible to trust a
6415 single self signed certificate. This means that:
6416 openssl verify ss.pem
6417 now gives a warning about a self signed certificate but
6418 openssl verify -CAfile ss.pem ss.pem
6422 *) For servers, store verify_result in SSL_SESSION data structure
6423 (and add it to external session representation).
6424 This is needed when client certificate verifications fails,
6425 but an application-provided verification callback (set by
6426 SSL_CTX_set_cert_verify_callback) allows accepting the session
6427 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6428 but returns 1): When the session is reused, we have to set
6429 ssl->verify_result to the appropriate error code to avoid
6431 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6433 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6434 case in PKCS7_dataInit() where the signed PKCS7 structure
6435 didn't contain any existing data because it was being created.
6436 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6438 *) Add a salt to the key derivation routines in enc.c. This
6439 forms the first 8 bytes of the encrypted file. Also add a
6440 -S option to allow a salt to be input on the command line.
6443 *) New function X509_cmp(). Oddly enough there wasn't a function
6444 to compare two certificates. We do this by working out the SHA1
6445 hash and comparing that. X509_cmp() will be needed by the trust
6449 *) SSL_get1_session() is like SSL_get_session(), but increments
6450 the reference count in the SSL_SESSION returned.
6451 [Geoff Thorpe <geoff@eu.c2.net>]
6453 *) Fix for 'req': it was adding a null to request attributes.
6454 Also change the X509_LOOKUP and X509_INFO code to handle
6455 certificate auxiliary information.
6458 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6462 *) Add the possibility to add extra information to the memory leak
6463 detecting output, to form tracebacks, showing from where each
6464 allocation was originated: CRYPTO_push_info("constant string") adds
6465 the string plus current file name and line number to a per-thread
6466 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6467 is like calling CYRPTO_pop_info() until the stack is empty.
6468 Also updated memory leak detection code to be multi-thread-safe.
6471 *) Add options -text and -noout to pkcs7 utility and delete the
6472 encryption options which never did anything. Update docs.
6475 *) Add options to some of the utilities to allow the pass phrase
6476 to be included on either the command line (not recommended on
6477 OSes like Unix) or read from the environment. Update the
6478 manpages and fix a few bugs.
6481 *) Add a few manpages for some of the openssl commands.
6484 *) Fix the -revoke option in ca. It was freeing up memory twice,
6485 leaking and not finding already revoked certificates.
6488 *) Extensive changes to support certificate auxiliary information.
6489 This involves the use of X509_CERT_AUX structure and X509_AUX
6490 functions. An X509_AUX function such as PEM_read_X509_AUX()
6491 can still read in a certificate file in the usual way but it
6492 will also read in any additional "auxiliary information". By
6493 doing things this way a fair degree of compatibility can be
6494 retained: existing certificates can have this information added
6495 using the new 'x509' options.
6497 Current auxiliary information includes an "alias" and some trust
6498 settings. The trust settings will ultimately be used in enhanced
6499 certificate chain verification routines: currently a certificate
6500 can only be trusted if it is self signed and then it is trusted
6504 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6505 The problem was that one of the replacement routines had not been working
6506 since SSLeay releases. For now the offending routine has been replaced
6507 with non-optimised assembler. Even so, this now gives around 95%
6508 performance improvement for 1024 bit RSA signs.
6511 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6512 handling. Most clients have the effective key size in bits equal to
6513 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6514 A few however don't do this and instead use the size of the decrypted key
6515 to determine the RC2 key length and the AlgorithmIdentifier to determine
6516 the effective key length. In this case the effective key length can still
6517 be 40 bits but the key length can be 168 bits for example. This is fixed
6518 by manually forcing an RC2 key into the EVP_PKEY structure because the
6519 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6520 the key length and effective key length are equal.
6523 *) Add a bunch of functions that should simplify the creation of
6524 X509_NAME structures. Now you should be able to do:
6525 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6526 and have it automatically work out the correct field type and fill in
6527 the structures. The more adventurous can try:
6528 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6529 and it will (hopefully) work out the correct multibyte encoding.
6532 *) Change the 'req' utility to use the new field handling and multibyte
6533 copy routines. Before the DN field creation was handled in an ad hoc
6534 way in req, ca, and x509 which was rather broken and didn't support
6535 BMPStrings or UTF8Strings. Since some software doesn't implement
6536 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6537 using the dirstring_type option. See the new comment in the default
6538 openssl.cnf for more info.
6541 *) Make crypto/rand/md_rand.c more robust:
6542 - Assure unique random numbers after fork().
6543 - Make sure that concurrent threads access the global counter and
6544 md serializably so that we never lose entropy in them
6545 or use exactly the same state in multiple threads.
6546 Access to the large state is not always serializable because
6547 the additional locking could be a performance killer, and
6548 md should be large enough anyway.
6551 *) New file apps/app_rand.c with commonly needed functionality
6552 for handling the random seed file.
6554 Use the random seed file in some applications that previously did not:
6556 dsaparam -genkey (which also ignored its '-rand' option),
6559 x509 (when signing).
6560 Except on systems with /dev/urandom, it is crucial to have a random
6561 seed file at least for key creation, DSA signing, and for DH exchanges;
6562 for RSA signatures we could do without one.
6564 gendh and gendsa (unlike genrsa) used to read only the first byte
6565 of each file listed in the '-rand' option. The function as previously
6566 found in genrsa is now in app_rand.c and is used by all programs
6567 that support '-rand'.
6570 *) In RAND_write_file, use mode 0600 for creating files;
6571 don't just chmod when it may be too late.
6574 *) Report an error from X509_STORE_load_locations
6575 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6578 *) New function ASN1_mbstring_copy() this copies a string in either
6579 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6580 into an ASN1_STRING type. A mask of permissible types is passed
6581 and it chooses the "minimal" type to use or an error if not type
6585 *) Add function equivalents to the various macros in asn1.h. The old
6586 macros are retained with an M_ prefix. Code inside the library can
6587 use the M_ macros. External code (including the openssl utility)
6588 should *NOT* in order to be "shared library friendly".
6591 *) Add various functions that can check a certificate's extensions
6592 to see if it usable for various purposes such as SSL client,
6593 server or S/MIME and CAs of these types. This is currently
6594 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6595 verification. Also added a -purpose flag to x509 utility to
6596 print out all the purposes.
6599 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6603 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6604 for, obtain and decode and extension and obtain its critical flag.
6605 This allows all the necessary extension code to be handled in a
6606 single function call.
6609 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6610 platforms. See crypto/rc4/rc4_enc.c for further details.
6613 *) New -noout option to asn1parse. This causes no output to be produced
6614 its main use is when combined with -strparse and -out to extract data
6615 from a file (which may not be in ASN.1 format).
6618 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6619 when producing the local key id.
6620 [Richard Levitte <levitte@stacken.kth.se>]
6622 *) New option -dhparam in s_server. This allows a DH parameter file to be
6623 stated explicitly. If it is not stated then it tries the first server
6624 certificate file. The previous behaviour hard coded the filename
6628 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6629 a public key to be input or output. For example:
6630 openssl rsa -in key.pem -pubout -out pubkey.pem
6631 Also added necessary DSA public key functions to handle this.
6634 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6635 in the message. This was handled by allowing
6636 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6637 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6639 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6640 to the end of the strings whereas this didn't. This would cause problems
6641 if strings read with d2i_ASN1_bytes() were later modified.
6642 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6644 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6645 data and it contains EOF it will end up returning an error. This is
6646 caused by input 46 bytes long. The cause is due to the way base64
6647 BIOs find the start of base64 encoded data. They do this by trying a
6648 trial decode on each line until they find one that works. When they
6649 do a flag is set and it starts again knowing it can pass all the
6650 data directly through the decoder. Unfortunately it doesn't reset
6651 the context it uses. This means that if EOF is reached an attempt
6652 is made to pass two EOFs through the context and this causes the
6653 resulting error. This can also cause other problems as well. As is
6654 usual with these problems it takes *ages* to find and the fix is
6655 trivial: move one line.
6656 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6658 *) Ugly workaround to get s_client and s_server working under Windows. The
6659 old code wouldn't work because it needed to select() on sockets and the
6660 tty (for keypresses and to see if data could be written). Win32 only
6661 supports select() on sockets so we select() with a 1s timeout on the
6662 sockets and then see if any characters are waiting to be read, if none
6663 are present then we retry, we also assume we can always write data to
6664 the tty. This isn't nice because the code then blocks until we've
6665 received a complete line of data and it is effectively polling the
6666 keyboard at 1s intervals: however it's quite a bit better than not
6667 working at all :-) A dedicated Windows application might handle this
6668 with an event loop for example.
6671 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6672 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6673 will be called when RSA_sign() and RSA_verify() are used. This is useful
6674 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6675 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6676 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6677 This necessitated the support of an extra signature type NID_md5_sha1
6678 for SSL signatures and modifications to the SSL library to use it instead
6679 of calling RSA_public_decrypt() and RSA_private_encrypt().
6682 *) Add new -verify -CAfile and -CApath options to the crl program, these
6683 will lookup a CRL issuers certificate and verify the signature in a
6684 similar way to the verify program. Tidy up the crl program so it
6685 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6686 less strict. It will now permit CRL extensions even if it is not
6687 a V2 CRL: this will allow it to tolerate some broken CRLs.
6690 *) Initialize all non-automatic variables each time one of the openssl
6691 sub-programs is started (this is necessary as they may be started
6692 multiple times from the "OpenSSL>" prompt).
6693 [Lennart Bang, Bodo Moeller]
6695 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6696 removing all other RSA functionality (this is what NO_RSA does). This
6697 is so (for example) those in the US can disable those operations covered
6698 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6702 *) Non-copying interface to BIO pairs.
6703 (still largely untested)
6706 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6707 ASCII string. This was handled independently in various places before.
6710 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6711 UTF8 strings a character at a time.
6714 *) Use client_version from client hello to select the protocol
6715 (s23_srvr.c) and for RSA client key exchange verification
6716 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6719 *) Add various utility functions to handle SPKACs, these were previously
6720 handled by poking round in the structure internals. Added new function
6721 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6722 print, verify and generate SPKACs. Based on an original idea from
6723 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6726 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6729 *) Allow the config file extension section to be overwritten on the
6730 command line. Based on an original idea from Massimiliano Pala
6731 <madwolf@comune.modena.it>. The new option is called -extensions
6732 and can be applied to ca, req and x509. Also -reqexts to override
6733 the request extensions in req and -crlexts to override the crl extensions
6737 *) Add new feature to the SPKAC handling in ca. Now you can include
6738 the same field multiple times by preceding it by "XXXX." for example:
6741 this is the same syntax as used in the req config file.
6744 *) Allow certificate extensions to be added to certificate requests. These
6745 are specified in a 'req_extensions' option of the req section of the
6746 config file. They can be printed out with the -text option to req but
6747 are otherwise ignored at present.
6750 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6751 data read consists of only the final block it would not decrypted because
6752 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6753 A misplaced 'break' also meant the decrypted final block might not be
6754 copied until the next read.
6757 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6758 a few extra parameters to the DH structure: these will be useful if
6759 for example we want the value of 'q' or implement X9.42 DH.
6762 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6763 provides hooks that allow the default DSA functions or functions on a
6764 "per key" basis to be replaced. This allows hardware acceleration and
6765 hardware key storage to be handled without major modification to the
6766 library. Also added low level modexp hooks and CRYPTO_EX structure and
6767 associated functions.
6770 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6771 as "read only": it can't be written to and the buffer it points to will
6772 not be freed. Reading from a read only BIO is much more efficient than
6773 a normal memory BIO. This was added because there are several times when
6774 an area of memory needs to be read from a BIO. The previous method was
6775 to create a memory BIO and write the data to it, this results in two
6776 copies of the data and an O(n^2) reading algorithm. There is a new
6777 function BIO_new_mem_buf() which creates a read only memory BIO from
6778 an area of memory. Also modified the PKCS#7 routines to use read only
6782 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6783 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6784 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6785 but a retry condition occured while trying to read the rest.
6788 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6789 NID_pkcs7_encrypted by default: this was wrong since this should almost
6790 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6791 the encrypted data type: this is a more sensible place to put it and it
6792 allows the PKCS#12 code to be tidied up that duplicated this
6796 *) Changed obj_dat.pl script so it takes its input and output files on
6797 the command line. This should avoid shell escape redirection problems
6801 *) Initial support for certificate extension requests, these are included
6802 in things like Xenroll certificate requests. Included functions to allow
6803 extensions to be obtained and added.
6806 *) -crlf option to s_client and s_server for sending newlines as
6807 CRLF (as required by many protocols).
6810 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6812 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6813 [Ralf S. Engelschall]
6815 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6816 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6818 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6822 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6823 DH parameters/keys (q is lost during that conversion, but the resulting
6824 DH parameters contain its length).
6826 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6827 much faster than DH_generate_parameters (which creates parameters
6828 where p = 2*q + 1), and also the smaller q makes DH computations
6829 much more efficient (160-bit exponentiation instead of 1024-bit
6830 exponentiation); so this provides a convenient way to support DHE
6831 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6832 utter importance to use
6833 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6835 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6836 when such DH parameters are used, because otherwise small subgroup
6837 attacks may become possible!
6840 *) Avoid memory leak in i2d_DHparams.
6843 *) Allow the -k option to be used more than once in the enc program:
6844 this allows the same encrypted message to be read by multiple recipients.
6847 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6848 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6849 it will always use the numerical form of the OID, even if it has a short
6853 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6854 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6855 otherwise bn_mod_exp was called. In the case of hardware keys for example
6856 no private key components need be present and it might store extra data
6857 in the RSA structure, which cannot be accessed from bn_mod_exp.
6858 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6859 private key operations.
6862 *) Added support for SPARC Linux.
6865 *) pem_password_cb function type incompatibly changed from
6866 typedef int pem_password_cb(char *buf, int size, int rwflag);
6868 ....(char *buf, int size, int rwflag, void *userdata);
6869 so that applications can pass data to their callbacks:
6870 The PEM[_ASN1]_{read,write}... functions and macros now take an
6871 additional void * argument, which is just handed through whenever
6872 the password callback is called.
6873 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6875 New function SSL_CTX_set_default_passwd_cb_userdata.
6877 Compatibility note: As many C implementations push function arguments
6878 onto the stack in reverse order, the new library version is likely to
6879 interoperate with programs that have been compiled with the old
6880 pem_password_cb definition (PEM_whatever takes some data that
6881 happens to be on the stack as its last argument, and the callback
6882 just ignores this garbage); but there is no guarantee whatsoever that
6885 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6886 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6887 problems not only on Windows, but also on some Unix platforms.
6888 To avoid problematic command lines, these definitions are now in an
6889 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6890 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6893 *) MIPS III/IV assembler module is reimplemented.
6896 *) More DES library cleanups: remove references to srand/rand and
6897 delete an unused file.
6900 *) Add support for the the free Netwide assembler (NASM) under Win32,
6901 since not many people have MASM (ml) and it can be hard to obtain.
6902 This is currently experimental but it seems to work OK and pass all
6903 the tests. Check out INSTALL.W32 for info.
6906 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6907 without temporary keys kept an extra copy of the server key,
6908 and connections with temporary keys did not free everything in case
6912 *) New function RSA_check_key and new openssl rsa option -check
6913 for verifying the consistency of RSA keys.
6914 [Ulf Moeller, Bodo Moeller]
6916 *) Various changes to make Win32 compile work:
6917 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6918 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6919 comparison" warnings.
6920 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6923 *) Add a debugging option to PKCS#5 v2 key generation function: when
6924 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6925 derived keys are printed to stderr.
6928 *) Copy the flags in ASN1_STRING_dup().
6929 [Roman E. Pavlov <pre@mo.msk.ru>]
6931 *) The x509 application mishandled signing requests containing DSA
6932 keys when the signing key was also DSA and the parameters didn't match.
6934 It was supposed to omit the parameters when they matched the signing key:
6935 the verifying software was then supposed to automatically use the CA's
6936 parameters if they were absent from the end user certificate.
6938 Omitting parameters is no longer recommended. The test was also
6939 the wrong way round! This was probably due to unusual behaviour in
6940 EVP_cmp_parameters() which returns 1 if the parameters match.
6941 This meant that parameters were omitted when they *didn't* match and
6942 the certificate was useless. Certificates signed with 'ca' didn't have
6944 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6946 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6947 The interface is as follows:
6948 Applications can use
6949 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6950 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6951 "off" is now the default.
6952 The library internally uses
6953 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6954 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6955 to disable memory-checking temporarily.
6957 Some inconsistent states that previously were possible (and were
6958 even the default) are now avoided.
6960 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6961 with each memory chunk allocated; this is occasionally more helpful
6962 than just having a counter.
6964 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6966 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6970 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6971 which largely parallels "options", but is for changing API behaviour,
6972 whereas "options" are about protocol behaviour.
6973 Initial "mode" flags are:
6975 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6976 a single record has been written.
6977 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6978 retries use the same buffer location.
6979 (But all of the contents must be
6983 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6986 *) Fix problems with no-hmac etc.
6987 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6989 *) New functions RSA_get_default_method(), RSA_set_method() and
6990 RSA_get_method(). These allows replacement of RSA_METHODs without having
6991 to mess around with the internals of an RSA structure.
6994 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6995 Also really enable memory leak checks in openssl.c and in some
6997 [Chad C. Mulligan, Bodo Moeller]
6999 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7000 up the length of negative integers. This has now been simplified to just
7001 store the length when it is first determined and use it later, rather
7002 than trying to keep track of where data is copied and updating it to
7004 [Steve Henson, reported by Brien Wheeler
7005 <bwheeler@authentica-security.com>]
7007 *) Add a new function PKCS7_signatureVerify. This allows the verification
7008 of a PKCS#7 signature but with the signing certificate passed to the
7009 function itself. This contrasts with PKCS7_dataVerify which assumes the
7010 certificate is present in the PKCS#7 structure. This isn't always the
7011 case: certificates can be omitted from a PKCS#7 structure and be
7012 distributed by "out of band" means (such as a certificate database).
7015 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7016 function prototypes in pem.h, also change util/mkdef.pl to add the
7017 necessary function names.
7020 *) mk1mf.pl (used by Windows builds) did not properly read the
7021 options set by Configure in the top level Makefile, and Configure
7022 was not even able to write more than one option correctly.
7023 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7026 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7027 file to be loaded from a BIO or FILE pointer. The BIO version will
7028 for example allow memory BIOs to contain config info.
7031 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7032 Whoever hopes to achieve shared-library compatibility across versions
7033 must use this, not the compile-time macro.
7034 (Exercise 0.9.4: Which is the minimum library version required by
7036 Note: All this applies only to multi-threaded programs, others don't
7040 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7041 through a BIO pair triggered the default case, i.e.
7042 SSLerr(...,SSL_R_UNKNOWN_STATE).
7045 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7046 can use the SSL library even if none of the specific BIOs is
7050 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7051 for the encoded length.
7052 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7054 *) Add initial documentation of the X509V3 functions.
7057 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7058 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7059 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7060 secure PKCS#8 private key format with a high iteration count.
7063 *) Fix determination of Perl interpreter: A perl or perl5
7064 _directory_ in $PATH was also accepted as the interpreter.
7065 [Ralf S. Engelschall]
7067 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7068 wrong with it but it was very old and did things like calling
7069 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7073 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7074 to use the new extension code.
7077 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7078 with macros. This should make it easier to change their form, add extra
7079 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7083 *) Add to configuration table a new entry that can specify an alternative
7084 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7085 according to Mark Crispin <MRC@Panda.COM>.
7089 *) DES CBC did not update the IV. Weird.
7092 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7093 Changing the behaviour of the former might break existing programs --
7094 where IV updating is needed, des_ncbc_encrypt can be used.
7097 *) When bntest is run from "make test" it drives bc to check its
7098 calculations, as well as internally checking them. If an internal check
7099 fails, it needs to cause bc to give a non-zero result or make test carries
7100 on without noticing the failure. Fixed.
7103 *) DES library cleanups.
7106 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7107 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7108 ciphers. NOTE: although the key derivation function has been verified
7109 against some published test vectors it has not been extensively tested
7110 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7114 *) Instead of "mkdir -p", which is not fully portable, use new
7115 Perl script "util/mkdir-p.pl".
7118 *) Rewrite the way password based encryption (PBE) is handled. It used to
7119 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7120 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7121 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7122 the 'parameter' field of the AlgorithmIdentifier is passed to the
7123 underlying key generation function so it must do its own ASN1 parsing.
7124 This has also changed the EVP_PBE_CipherInit() function which now has a
7125 'parameter' argument instead of literal salt and iteration count values
7126 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7129 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7130 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7131 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7132 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7133 value was just used as a "magic string" and not used directly its
7134 value doesn't matter.
7137 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7141 *) "linux-sparc64" configuration (ultrapenguin).
7142 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7143 "linux-sparc" configuration.
7144 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7146 *) config now generates no-xxx options for missing ciphers.
7149 *) Support the EBCDIC character set (work in progress).
7150 File ebcdic.c not yet included because it has a different license.
7151 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7153 *) Support BS2000/OSD-POSIX.
7154 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7156 *) Make callbacks for key generation use void * instead of char *.
7159 *) Make S/MIME samples compile (not yet tested).
7162 *) Additional typesafe stacks.
7165 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7169 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7171 *) New configuration variant "sco5-gcc".
7173 *) Updated some demos.
7174 [Sean O Riordain, Wade Scholine]
7176 *) Add missing BIO_free at exit of pkcs12 application.
7179 *) Fix memory leak in conf.c.
7182 *) Updates for Win32 to assembler version of MD5.
7185 *) Set #! path to perl in apps/der_chop to where we found it
7186 instead of using a fixed path.
7189 *) SHA library changes for irix64-mips4-cc.
7192 *) Improvements for VMS support.
7196 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7198 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7199 This also avoids the problems with SC4.2 and unpatched SC5.
7200 [Andy Polyakov <appro@fy.chalmers.se>]
7202 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7203 These are required because of the typesafe stack would otherwise break
7204 existing code. If old code used a structure member which used to be STACK
7205 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7206 sk_num or sk_value it would produce an error because the num, data members
7207 are not present in STACK_OF. Now it just produces a warning. sk_set
7208 replaces the old method of assigning a value to sk_value
7209 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7210 that does this will no longer work (and should use sk_set instead) but
7211 this could be regarded as a "questionable" behaviour anyway.
7214 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7215 correctly handle encrypted S/MIME data.
7218 *) Change type of various DES function arguments from des_cblock
7219 (which means, in function argument declarations, pointer to char)
7220 to des_cblock * (meaning pointer to array with 8 char elements),
7221 which allows the compiler to do more typechecking; it was like
7222 that back in SSLeay, but with lots of ugly casts.
7224 Introduce new type const_des_cblock.
7227 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7228 problems: find RecipientInfo structure that matches recipient certificate
7229 and initialise the ASN1 structures properly based on passed cipher.
7232 *) Belatedly make the BN tests actually check the results.
7235 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7236 to and from BNs: it was completely broken. New compilation option
7237 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7238 key elements as negative integers.
7241 *) Reorganize and speed up MD5.
7242 [Andy Polyakov <appro@fy.chalmers.se>]
7245 [Richard Levitte <richard@levitte.org>]
7247 *) New option -out to asn1parse to allow the parsed structure to be
7248 output to a file. This is most useful when combined with the -strparse
7249 option to examine the output of things like OCTET STRINGS.
7252 *) Make SSL library a little more fool-proof by not requiring any longer
7253 that SSL_set_{accept,connect}_state be called before
7254 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7255 in many applications because usually everything *appeared* to work as
7256 intended anyway -- now it really works as intended).
7259 *) Move openssl.cnf out of lib/.
7262 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7263 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7264 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7265 [Ralf S. Engelschall]
7267 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7268 handle PKCS#7 enveloped data properly.
7269 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7271 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7272 copying pointers. The cert_st handling is changed by this in
7273 various ways (and thus what used to be known as ctx->default_cert
7274 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7275 any longer when s->cert does not give us what we need).
7276 ssl_cert_instantiate becomes obsolete by this change.
7277 As soon as we've got the new code right (possibly it already is?),
7278 we have solved a couple of bugs of the earlier code where s->cert
7279 was used as if it could not have been shared with other SSL structures.
7281 Note that using the SSL API in certain dirty ways now will result
7282 in different behaviour than observed with earlier library versions:
7283 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7284 does not influence s as it used to.
7286 In order to clean up things more thoroughly, inside SSL_SESSION
7287 we don't use CERT any longer, but a new structure SESS_CERT
7288 that holds per-session data (if available); currently, this is
7289 the peer's certificate chain and, for clients, the server's certificate
7290 and temporary key. CERT holds only those values that can have
7291 meaningful defaults in an SSL_CTX.
7294 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7295 from the internal representation. Various PKCS#7 fixes: remove some
7296 evil casts and set the enc_dig_alg field properly based on the signing
7300 *) Allow PKCS#12 password to be set from the command line or the
7301 environment. Let 'ca' get its config file name from the environment
7302 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7306 *) Allow certificate policies extension to use an IA5STRING for the
7307 organization field. This is contrary to the PKIX definition but
7308 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7312 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7313 without disallowing inline assembler and the like for non-pedantic builds.
7316 *) Support Borland C++ builder.
7317 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7322 *) SHA-1 cleanups and performance enhancements.
7323 [Andy Polyakov <appro@fy.chalmers.se>]
7325 *) Sparc v8plus assembler for the bignum library.
7326 [Andy Polyakov <appro@fy.chalmers.se>]
7328 *) Accept any -xxx and +xxx compiler options in Configure.
7331 *) Update HPUX configuration.
7334 *) Add missing sk_<type>_unshift() function to safestack.h
7335 [Ralf S. Engelschall]
7337 *) New function SSL_CTX_use_certificate_chain_file that sets the
7338 "extra_cert"s in addition to the certificate. (This makes sense
7339 only for "PEM" format files, as chains as a whole are not
7343 *) Support verify_depth from the SSL API.
7344 x509_vfy.c had what can be considered an off-by-one-error:
7345 Its depth (which was not part of the external interface)
7346 was actually counting the number of certificates in a chain;
7347 now it really counts the depth.
7350 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7351 instead of X509err, which often resulted in confusing error
7352 messages since the error codes are not globally unique
7353 (e.g. an alleged error in ssl3_accept when a certificate
7354 didn't match the private key).
7356 *) New function SSL_CTX_set_session_id_context that allows to set a default
7357 value (so that you don't need SSL_set_session_id_context for each
7358 connection using the SSL_CTX).
7361 *) OAEP decoding bug fix.
7364 *) Support INSTALL_PREFIX for package builders, as proposed by
7368 *) New Configure options "threads" and "no-threads". For systems
7369 where the proper compiler options are known (currently Solaris
7370 and Linux), "threads" is the default.
7373 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7376 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7377 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7378 such as /usr/local/bin.
7381 *) "make linux-shared" to build shared libraries.
7382 [Niels Poppe <niels@netbox.org>]
7384 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7387 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7388 extension adding in x509 utility.
7391 *) Remove NOPROTO sections and error code comments.
7394 *) Partial rewrite of the DEF file generator to now parse the ANSI
7398 *) New Configure options --prefix=DIR and --openssldir=DIR.
7401 *) Complete rewrite of the error code script(s). It is all now handled
7402 by one script at the top level which handles error code gathering,
7403 header rewriting and C source file generation. It should be much better
7404 than the old method: it now uses a modified version of Ulf's parser to
7405 read the ANSI prototypes in all header files (thus the old K&R definitions
7406 aren't needed for error creation any more) and do a better job of
7407 translating function codes into names. The old 'ASN1 error code imbedded
7408 in a comment' is no longer necessary and it doesn't use .err files which
7409 have now been deleted. Also the error code call doesn't have to appear all
7410 on one line (which resulted in some large lines...).
7413 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7416 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7417 0 (which usually indicates a closed connection), but continue reading.
7420 *) Fix some race conditions.
7423 *) Add support for CRL distribution points extension. Add Certificate
7424 Policies and CRL distribution points documentation.
7427 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7430 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7431 8 of keying material. Merlin has also confirmed interop with this fix
7432 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7433 [Merlin Hughes <merlin@baltimore.ie>]
7435 *) Fix lots of warnings.
7436 [Richard Levitte <levitte@stacken.kth.se>]
7438 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7439 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7440 [Richard Levitte <levitte@stacken.kth.se>]
7442 *) Fix problems with sizeof(long) == 8.
7443 [Andy Polyakov <appro@fy.chalmers.se>]
7445 *) Change functions to ANSI C.
7448 *) Fix typos in error codes.
7449 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7451 *) Remove defunct assembler files from Configure.
7454 *) SPARC v8 assembler BIGNUM implementation.
7455 [Andy Polyakov <appro@fy.chalmers.se>]
7457 *) Support for Certificate Policies extension: both print and set.
7458 Various additions to support the r2i method this uses.
7461 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7462 return a const string when you are expecting an allocated buffer.
7465 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7466 types DirectoryString and DisplayText.
7469 *) Add code to allow r2i extensions to access the configuration database,
7470 add an LHASH database driver and add several ctx helper functions.
7473 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7474 fail when they extended the size of a BIGNUM.
7477 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7478 support typesafe stack.
7481 *) Fix typo in SSL_[gs]et_options().
7482 [Nils Frostberg <nils@medcom.se>]
7484 *) Delete various functions and files that belonged to the (now obsolete)
7485 old X509V3 handling code.
7488 *) New Configure option "rsaref".
7491 *) Don't auto-generate pem.h.
7494 *) Introduce type-safe ASN.1 SETs.
7497 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7498 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7500 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7501 that links with OpenSSL (well at least cause lots of warnings), but fear
7502 not: the conversion is trivial, and it eliminates loads of evil casts. A
7503 few STACKed things have been converted already. Feel free to convert more.
7504 In the fullness of time, I'll do away with the STACK type altogether.
7507 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7508 specified in <certfile> by updating the entry in the index.txt file.
7509 This way one no longer has to edit the index.txt file manually for
7510 revoking a certificate. The -revoke option does the gory details now.
7511 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7513 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7514 `-text' option at all and this way the `-noout -text' combination was
7515 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7516 [Ralf S. Engelschall]
7518 *) Make sure a corresponding plain text error message exists for the
7519 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7520 verify callback function determined that a certificate was revoked.
7521 [Ralf S. Engelschall]
7523 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7524 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7525 all available cipers including rc5, which was forgotten until now.
7526 In order to let the testing shell script know which algorithms
7527 are available, a new (up to now undocumented) command
7528 "openssl list-cipher-commands" is used.
7531 *) Bugfix: s_client occasionally would sleep in select() when
7532 it should have checked SSL_pending() first.
7535 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7536 the raw DSA values prior to ASN.1 encoding.
7539 *) Tweaks to Configure
7540 [Niels Poppe <niels@netbox.org>]
7542 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7546 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7549 *) New config option to avoid instructions that are illegal on the 80386.
7550 The default code is faster, but requires at least a 486.
7553 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7554 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7555 same as SSL2_VERSION anyway.
7558 *) New "-showcerts" option for s_client.
7561 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7562 application. Various cleanups and fixes.
7565 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7566 modify error routines to work internally. Add error codes and PBE init
7567 to library startup routines.
7570 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7571 packing functions to asn1 and evp. Changed function names and error
7572 codes along the way.
7575 *) PKCS12 integration: and so it begins... First of several patches to
7576 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7577 objects to objects.h
7580 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7581 and display support for Thawte strong extranet extension.
7584 *) Add LinuxPPC support.
7585 [Jeff Dubrule <igor@pobox.org>]
7587 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7588 bn_div_words in alpha.s.
7589 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7591 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7592 OAEP isn't supported when OpenSSL is built with RSAref.
7593 [Ulf Moeller <ulf@fitug.de>]
7595 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7596 so they no longer are missing under -DNOPROTO.
7597 [Soren S. Jorvang <soren@t.dk>]
7600 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7602 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7603 doesn't work when the session is reused. Coming soon!
7606 *) Fix a security hole, that allows sessions to be reused in the wrong
7607 context thus bypassing client cert protection! All software that uses
7608 client certs and session caches in multiple contexts NEEDS PATCHING to
7609 allow session reuse! A fuller solution is in the works.
7610 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7612 *) Some more source tree cleanups (removed obsolete files
7613 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7614 permission on "config" script to be executable) and a fix for the INSTALL
7616 [Ulf Moeller <ulf@fitug.de>]
7618 *) Remove some legacy and erroneous uses of malloc, free instead of
7620 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7622 *) Make rsa_oaep_test return non-zero on error.
7623 [Ulf Moeller <ulf@fitug.de>]
7625 *) Add support for native Solaris shared libraries. Configure
7626 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7627 if someone would make that last step automatic.
7628 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7630 *) ctx_size was not built with the right compiler during "make links". Fixed.
7633 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7634 except NULL ciphers". This means the default cipher list will no longer
7635 enable NULL ciphers. They need to be specifically enabled e.g. with
7636 the string "DEFAULT:eNULL".
7639 *) Fix to RSA private encryption routines: if p < q then it would
7640 occasionally produce an invalid result. This will only happen with
7641 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7644 *) Be less restrictive and allow also `perl util/perlpath.pl
7645 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7646 because this way one can also use an interpreter named `perl5' (which is
7647 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7648 installed as `perl').
7649 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7651 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7652 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7654 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7655 advapi32.lib to Win32 build and change the pem test comparision
7656 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7657 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7658 and crypto/des/ede_cbcm_enc.c.
7661 *) DES quad checksum was broken on big-endian architectures. Fixed.
7664 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7665 Win32 test batch file so it (might) work again. The Win32 test batch file
7666 is horrible: I feel ill....
7669 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7670 in e_os.h. Audit of header files to check ANSI and non ANSI
7671 sections: 10 functions were absent from non ANSI section and not exported
7672 from Windows DLLs. Fixed up libeay.num for new functions.
7675 *) Make `openssl version' output lines consistent.
7676 [Ralf S. Engelschall]
7678 *) Fix Win32 symbol export lists for BIO functions: Added
7679 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7680 to ms/libeay{16,32}.def.
7681 [Ralf S. Engelschall]
7683 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7684 fine under Unix and passes some trivial tests I've now added. But the
7685 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7686 added to make sure no one expects that this stuff really works in the
7687 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7688 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7690 [Ralf S. Engelschall]
7692 *) Fix the generation of two part addresses in perl.
7693 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7695 *) Add config entry for Linux on MIPS.
7696 [John Tobey <jtobey@channel1.com>]
7698 *) Make links whenever Configure is run, unless we are on Windoze.
7701 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7702 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7706 *) Add a useful kludge to allow package maintainers to specify compiler and
7707 other platforms details on the command line without having to patch the
7708 Configure script everytime: One now can use ``perl Configure
7709 <id>:<details>'', i.e. platform ids are allowed to have details appended
7710 to them (seperated by colons). This is treated as there would be a static
7711 pre-configured entry in Configure's %table under key <id> with value
7712 <details> and ``perl Configure <id>'' is called. So, when you want to
7713 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7714 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7715 now, which overrides the FreeBSD-elf entry on-the-fly.
7716 [Ralf S. Engelschall]
7718 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7721 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7722 on the `perl Configure ...' command line. This way one can compile
7723 OpenSSL libraries with Position Independent Code (PIC) which is needed
7724 for linking it into DSOs.
7725 [Ralf S. Engelschall]
7727 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7731 *) Cleaned up the LICENSE document: The official contact for any license
7732 questions now is the OpenSSL core team under openssl-core@openssl.org.
7733 And add a paragraph about the dual-license situation to make sure people
7734 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7735 to the OpenSSL toolkit.
7736 [Ralf S. Engelschall]
7738 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7739 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7740 Additonally cleaned up the `make links' target: Remove unnecessary
7741 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7742 to speed processing and no longer clutter the display with confusing
7743 stuff. Instead only the actually done links are displayed.
7744 [Ralf S. Engelschall]
7746 *) Permit null encryption ciphersuites, used for authentication only. It used
7747 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7748 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7752 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7753 signed attributes when verifying signatures (this would break them),
7754 the detached data encoding was wrong and public keys obtained using
7755 X509_get_pubkey() weren't freed.
7758 *) Add text documentation for the BUFFER functions. Also added a work around
7759 to a Win95 console bug. This was triggered by the password read stuff: the
7760 last character typed gets carried over to the next fread(). If you were
7761 generating a new cert request using 'req' for example then the last
7762 character of the passphrase would be CR which would then enter the first
7766 *) Added the new `Includes OpenSSL Cryptography Software' button as
7767 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7768 button and can be used by applications based on OpenSSL to show the
7769 relationship to the OpenSSL project.
7770 [Ralf S. Engelschall]
7772 *) Remove confusing variables in function signatures in files
7773 ssl/ssl_lib.c and ssl/ssl.h.
7774 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7776 *) Don't install bss_file.c under PREFIX/include/
7777 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7779 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7780 functions that return function pointers and has support for NT specific
7781 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7782 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7783 unsigned to signed types: this was killing the Win32 compile.
7786 *) Add new certificate file to stack functions,
7787 SSL_add_dir_cert_subjects_to_stack() and
7788 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7789 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7790 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7791 This means that Apache-SSL and similar packages don't have to mess around
7792 to add as many CAs as they want to the preferred list.
7795 *) Experiment with doxygen documentation. Currently only partially applied to
7797 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7798 openssl.doxy as the configuration file.
7801 *) Get rid of remaining C++-style comments which strict C compilers hate.
7802 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7804 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7805 compiled in by default: it has problems with large keys.
7808 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7809 DH private keys and/or callback functions which directly correspond to
7810 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7811 is needed for applications which have to configure certificates on a
7812 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7814 For the RSA certificate situation is makes no difference, but
7815 for the DSA certificate situation this fixes the "no shared cipher"
7816 problem where the OpenSSL cipher selection procedure failed because the
7817 temporary keys were not overtaken from the context and the API provided
7818 no way to reconfigure them.
7819 The new functions now let applications reconfigure the stuff and they
7820 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7821 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7822 non-public-API function ssl_cert_instantiate() is used as a helper
7823 function and also to reduce code redundancy inside ssl_rsa.c.
7824 [Ralf S. Engelschall]
7826 *) Move s_server -dcert and -dkey options out of the undocumented feature
7827 area because they are useful for the DSA situation and should be
7828 recognized by the users.
7829 [Ralf S. Engelschall]
7831 *) Fix the cipher decision scheme for export ciphers: the export bits are
7832 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7833 SSL_EXP_MASK. So, the original variable has to be used instead of the
7834 already masked variable.
7835 [Richard Levitte <levitte@stacken.kth.se>]
7837 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7838 [Richard Levitte <levitte@stacken.kth.se>]
7840 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7841 from `int' to `unsigned int' because it's a length and initialized by
7842 EVP_DigestFinal() which expects an `unsigned int *'.
7843 [Richard Levitte <levitte@stacken.kth.se>]
7845 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7846 script. Instead use the usual Shell->Perl transition trick.
7847 [Ralf S. Engelschall]
7849 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7850 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7851 -noout -modulus' as it's already the case for `openssl rsa -noout
7852 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7853 currently the public key is printed (a decision which was already done by
7854 `openssl dsa -modulus' in the past) which serves a similar purpose.
7855 Additionally the NO_RSA no longer completely removes the whole -modulus
7856 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7858 [Ralf S. Engelschall]
7860 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7861 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7862 [Arne Ansper <arne@ats.cyber.ee>]
7864 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7865 to be added. Now both 'req' and 'ca' can use new objects defined in the
7869 *) Add cool BIO that does syslog (or event log on NT).
7870 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7872 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7873 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7874 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7875 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7878 *) Add preliminary config info for new extension code.
7881 *) Make RSA_NO_PADDING really use no padding.
7882 [Ulf Moeller <ulf@fitug.de>]
7884 *) Generate errors when private/public key check is done.
7887 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7888 for some CRL extensions and new objects added.
7891 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7892 key usage extension and fuller support for authority key id.
7895 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7896 padding method for RSA, which is recommended for new applications in PKCS
7897 #1 v2.0 (RFC 2437, October 1998).
7898 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7899 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7900 against Bleichbacher's attack on RSA.
7901 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7904 *) Updates to the new SSL compression code
7905 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7907 *) Fix so that the version number in the master secret, when passed
7908 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7909 (because the server will not accept higher), that the version number
7910 is 0x03,0x01, not 0x03,0x00
7911 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7913 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7914 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7915 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7918 *) Support for RAW extensions where an arbitrary extension can be
7919 created by including its DER encoding. See apps/openssl.cnf for
7923 *) Make sure latest Perl versions don't interpret some generated C array
7924 code as Perl array code in the crypto/err/err_genc.pl script.
7925 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7927 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7928 not many people have the assembler. Various Win32 compilation fixes and
7929 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7933 *) Modify configure script 'Configure' to automatically create crypto/date.h
7934 file under Win32 and also build pem.h from pem.org. New script
7935 util/mkfiles.pl to create the MINFO file on environments that can't do a
7936 'make files': perl util/mkfiles.pl >MINFO should work.
7939 *) Major rework of DES function declarations, in the pursuit of correctness
7940 and purity. As a result, many evil casts evaporated, and some weirdness,
7941 too. You may find this causes warnings in your code. Zapping your evil
7942 casts will probably fix them. Mostly.
7945 *) Fix for a typo in asn1.h. Bug fix to object creation script
7946 obj_dat.pl. It considered a zero in an object definition to mean
7947 "end of object": none of the objects in objects.h have any zeros
7948 so it wasn't spotted.
7949 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7951 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7952 Masking (CBCM). In the absence of test vectors, the best I have been able
7953 to do is check that the decrypt undoes the encrypt, so far. Send me test
7954 vectors if you have them.
7957 *) Correct calculation of key length for export ciphers (too much space was
7958 allocated for null ciphers). This has not been tested!
7961 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7962 message is now correct (it understands "crypto" and "ssl" on its
7963 command line). There is also now an "update" option. This will update
7964 the util/ssleay.num and util/libeay.num files with any new functions.
7966 perl util/mkdef.pl crypto ssl update
7967 it will update them.
7970 *) Overhauled the Perl interface (perl/*):
7971 - ported BN stuff to OpenSSL's different BN library
7972 - made the perl/ source tree CVS-aware
7973 - renamed the package from SSLeay to OpenSSL (the files still contain
7974 their history because I've copied them in the repository)
7975 - removed obsolete files (the test scripts will be replaced
7976 by better Test::Harness variants in the future)
7977 [Ralf S. Engelschall]
7979 *) First cut for a very conservative source tree cleanup:
7980 1. merge various obsolete readme texts into doc/ssleay.txt
7981 where we collect the old documents and readme texts.
7982 2. remove the first part of files where I'm already sure that we no
7983 longer need them because of three reasons: either they are just temporary
7984 files which were left by Eric or they are preserved original files where
7985 I've verified that the diff is also available in the CVS via "cvs diff
7986 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7987 the crypto/md/ stuff).
7988 [Ralf S. Engelschall]
7990 *) More extension code. Incomplete support for subject and issuer alt
7991 name, issuer and authority key id. Change the i2v function parameters
7992 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7993 what that's for :-) Fix to ASN1 macro which messed up
7994 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7997 *) Preliminary support for ENUMERATED type. This is largely copied from the
8001 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8002 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8004 *) Make sure `make rehash' target really finds the `openssl' program.
8005 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8007 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8008 like to hear about it if this slows down other processors.
8011 *) Add CygWin32 platform information to Configure script.
8012 [Alan Batie <batie@aahz.jf.intel.com>]
8014 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8015 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8017 *) New program nseq to manipulate netscape certificate sequences
8020 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8024 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8025 but the BN code had some problems that would cause failures when
8026 doing certificate verification and some other functions.
8027 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8029 *) Add ASN1 and PEM code to support netscape certificate sequences.
8032 *) Add ASN1 and PEM code to support netscape certificate sequences.
8035 *) Add several PKIX and private extended key usage OIDs.
8038 *) Modify the 'ca' program to handle the new extension code. Modify
8039 openssl.cnf for new extension format, add comments.
8042 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8043 and add a sample to openssl.cnf so req -x509 now adds appropriate
8047 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8048 error code, add initial support to X509_print() and x509 application.
8051 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8052 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8053 stuff is currently isolated and isn't even compiled yet.
8056 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8057 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8058 Removed the versions check from X509 routines when loading extensions:
8059 this allows certain broken certificates that don't set the version
8060 properly to be processed.
8063 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8064 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8065 can still be regenerated with "make depend".
8068 *) Spelling mistake in C version of CAST-128.
8069 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8071 *) Changes to the error generation code. The perl script err-code.pl
8072 now reads in the old error codes and retains the old numbers, only
8073 adding new ones if necessary. It also only changes the .err files if new
8074 codes are added. The makefiles have been modified to only insert errors
8075 when needed (to avoid needlessly modifying header files). This is done
8076 by only inserting errors if the .err file is newer than the auto generated
8077 C file. To rebuild all the error codes from scratch (the old behaviour)
8078 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8079 or delete all the .err files.
8082 *) CAST-128 was incorrectly implemented for short keys. The C version has
8083 been fixed, but is untested. The assembler versions are also fixed, but
8084 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8085 to regenerate it if needed.
8086 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8087 Hagino <itojun@kame.net>]
8089 *) File was opened incorrectly in randfile.c.
8090 [Ulf Möller <ulf@fitug.de>]
8092 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8093 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8094 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8095 al: it's just almost always a UTCTime. Note this patch adds new error
8096 codes so do a "make errors" if there are problems.
8099 *) Correct Linux 1 recognition in config.
8100 [Ulf Möller <ulf@fitug.de>]
8102 *) Remove pointless MD5 hash when using DSA keys in ca.
8103 [Anonymous <nobody@replay.com>]
8105 *) Generate an error if given an empty string as a cert directory. Also
8106 generate an error if handed NULL (previously returned 0 to indicate an
8107 error, but didn't set one).
8108 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8110 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8113 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8114 parameters. This was causing a warning which killed off the Win32 compile.
8117 *) Remove C++ style comments from crypto/bn/bn_local.h.
8118 [Neil Costigan <neil.costigan@celocom.com>]
8120 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8121 based on a text string, looking up short and long names and finally
8122 "dot" format. The "dot" format stuff didn't work. Added new function
8123 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8124 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8125 OID is not part of the table.
8128 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8129 X509_LOOKUP_by_alias().
8132 *) Sort openssl functions by name.
8135 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8136 encryption from sample DSA keys (in case anyone is interested the password
8140 *) Make _all_ *_free functions accept a NULL pointer.
8141 [Frans Heymans <fheymans@isaserver.be>]
8143 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8145 [Anonymous <nobody@replay.com>]
8147 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8148 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8150 *) Don't blow it for numeric -newkey arguments to apps/req.
8151 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8153 *) Temp key "for export" tests were wrong in s3_srvr.c.
8154 [Anonymous <nobody@replay.com>]
8156 *) Add prototype for temp key callback functions
8157 SSL_CTX_set_tmp_{rsa,dh}_callback().
8160 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8161 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8164 *) X509_name_add_entry() freed the wrong thing after an error.
8165 [Arne Ansper <arne@ats.cyber.ee>]
8167 *) rsa_eay.c would attempt to free a NULL context.
8168 [Arne Ansper <arne@ats.cyber.ee>]
8170 *) BIO_s_socket() had a broken should_retry() on Windoze.
8171 [Arne Ansper <arne@ats.cyber.ee>]
8173 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8174 [Arne Ansper <arne@ats.cyber.ee>]
8176 *) Make sure the already existing X509_STORE->depth variable is initialized
8177 in X509_STORE_new(), but document the fact that this variable is still
8178 unused in the certificate verification process.
8179 [Ralf S. Engelschall]
8181 *) Fix the various library and apps files to free up pkeys obtained from
8182 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8185 *) Fix reference counting in X509_PUBKEY_get(). This makes
8186 demos/maurice/example2.c work, amongst others, probably.
8187 [Steve Henson and Ben Laurie]
8189 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8190 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8191 are no longer created. This way we have a single and consistent command
8192 line interface `openssl <command>', similar to `cvs <command>'.
8193 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8195 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8196 BIT STRING wrapper always have zero unused bits.
8199 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8202 *) Make the top-level INSTALL documentation easier to understand.
8205 *) Makefiles updated to exit if an error occurs in a sub-directory
8206 make (including if user presses ^C) [Paul Sutton]
8208 *) Make Montgomery context stuff explicit in RSA data structure.
8211 *) Fix build order of pem and err to allow for generated pem.h.
8214 *) Fix renumbering bug in X509_NAME_delete_entry().
8217 *) Enhanced the err-ins.pl script so it makes the error library number
8218 global and can add a library name. This is needed for external ASN1 and
8219 other error libraries.
8222 *) Fixed sk_insert which never worked properly.
8225 *) Fix ASN1 macros so they can handle indefinite length construted
8226 EXPLICIT tags. Some non standard certificates use these: they can now
8230 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8231 into a single doc/ssleay.txt bundle. This way the information is still
8232 preserved but no longer messes up this directory. Now it's new room for
8233 the new set of documenation files.
8234 [Ralf S. Engelschall]
8236 *) SETs were incorrectly DER encoded. This was a major pain, because they
8237 shared code with SEQUENCEs, which aren't coded the same. This means that
8238 almost everything to do with SETs or SEQUENCEs has either changed name or
8239 number of arguments.
8240 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8242 *) Fix test data to work with the above.
8245 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8246 was already fixed by Eric for 0.9.1 it seems.
8247 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8249 *) Autodetect FreeBSD3.
8252 *) Fix various bugs in Configure. This affects the following platforms:
8256 unixware-2.0-pentium
8260 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8261 before they are needed.
8264 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8268 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8270 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8271 changed SSLeay to OpenSSL in version strings.
8272 [Ralf S. Engelschall]
8274 *) Some fixups to the top-level documents.
8277 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8278 because the symlink to include/ was missing.
8279 [Ralf S. Engelschall]
8281 *) Incorporated the popular no-RSA/DSA-only patches
8282 which allow to compile a RSA-free SSLeay.
8283 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8285 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8286 when "ssleay" is still not found.
8287 [Ralf S. Engelschall]
8289 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8290 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8292 *) Updated the README file.
8293 [Ralf S. Engelschall]
8295 *) Added various .cvsignore files in the CVS repository subdirs
8296 to make a "cvs update" really silent.
8297 [Ralf S. Engelschall]
8299 *) Recompiled the error-definition header files and added
8300 missing symbols to the Win32 linker tables.
8301 [Ralf S. Engelschall]
8303 *) Cleaned up the top-level documents;
8304 o new files: CHANGES and LICENSE
8305 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8306 o merged COPYRIGHT into LICENSE
8307 o removed obsolete TODO file
8308 o renamed MICROSOFT to INSTALL.W32
8309 [Ralf S. Engelschall]
8311 *) Removed dummy files from the 0.9.1b source tree:
8312 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8313 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8314 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8315 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8316 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8317 [Ralf S. Engelschall]
8319 *) Added various platform portability fixes.
8322 *) The Genesis of the OpenSSL rpject:
8323 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8324 Young and Tim J. Hudson created while they were working for C2Net until
8326 [The OpenSSL Project]
8329 Changes between 0.9.0b and 0.9.1b [not released]
8331 *) Updated a few CA certificates under certs/
8334 *) Changed some BIGNUM api stuff.
8337 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8338 DGUX x86, Linux Alpha, etc.
8341 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8342 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8346 *) Add -strparse option to asn1pars program which parses nested
8348 [Dr Stephen Henson <shenson@bigfoot.com>]
8350 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8353 *) DSA fix for "ca" program.
8356 *) Added "-genkey" option to "dsaparam" program.
8359 *) Added RIPE MD160 (rmd160) message digest.
8362 *) Added -a (all) option to "ssleay version" command.
8365 *) Added PLATFORM define which is the id given to Configure.
8368 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8371 *) Extended the ASN.1 parser routines.
8374 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8377 *) Added a BN_CTX to the BN library.
8380 *) Fixed the weak key values in DES library
8383 *) Changed API in EVP library for cipher aliases.
8386 *) Added support for RC2/64bit cipher.
8389 *) Converted the lhash library to the crypto/mem.c functions.
8392 *) Added more recognized ASN.1 object ids.
8395 *) Added more RSA padding checks for SSL/TLS.
8398 *) Added BIO proxy/filter functionality.
8401 *) Added extra_certs to SSL_CTX which can be used
8402 send extra CA certificates to the client in the CA cert chain sending
8403 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8406 *) Now Fortezza is denied in the authentication phase because
8407 this is key exchange mechanism is not supported by SSLeay at all.
8410 *) Additional PKCS1 checks.
8413 *) Support the string "TLSv1" for all TLS v1 ciphers.
8416 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8417 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8420 *) Fixed a few memory leaks.
8423 *) Fixed various code and comment typos.
8426 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8427 bytes sent in the client random.
8428 [Edward Bishop <ebishop@spyglass.com>]