5 Changes between 0.9.8f and 0.9.9 [xx XXX xxxx]
7 *) s390x assembler pack.
10 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
14 *) Implement Opaque PRF Input TLS extension as specified in
15 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
16 official specification yet and no extension type assignment by
17 IANA exists, this extension (for now) will have to be explicitly
18 enabled when building OpenSSL by providing the extension number
19 to use. For example, specify an option
21 -DTLSEXT_TYPE_opaque_prf_input=0x9527
23 to the "config" or "Configure" script to enable the extension,
24 assuming extension number 0x9527 (which is a completely arbitrary
25 and unofficial assignment based on the MD5 hash of the Internet
26 Draft). Note that by doing so, you potentially lose
27 interoperability with other TLS implementations since these might
28 be using the same extension number for other purposes.
30 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
31 opaque PRF input value to use in the handshake. This will create
32 an interal copy of the length-'len' string at 'src', and will
33 return non-zero for success.
35 To get more control and flexibility, provide a callback function
38 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
39 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
43 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
46 Callback function 'cb' will be called in handshakes, and is
47 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
48 Argument 'arg' is for application purposes (the value as given to
49 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
50 be provided to the callback function). The callback function
51 has to return non-zero to report success: usually 1 to use opaque
52 PRF input just if possible, or 2 to enforce use of the opaque PRF
53 input. In the latter case, the library will abort the handshake
54 if opaque PRF input is not successfully negotiated.
56 Arguments 'peerinput' and 'len' given to the callback function
57 will always be NULL and 0 in the case of a client. A server will
58 see the client's opaque PRF input through these variables if
59 available (NULL and 0 otherwise). Note that if the server
60 provides an opaque PRF input, the length must be the same as the
61 length of the client's opaque PRF input.
63 Note that the callback function will only be called when creating
64 a new session (session resumption can resume whatever was
65 previously negotiated), and will not be called in SSL 2.0
66 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
67 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
68 for applications that need to enforce opaque PRF input.
72 *) Update ssl code to support digests other than SHA1+MD5 for handshake
75 [Victor B. Wagner <vitus@cryptocom.ru>]
77 *) Add RFC4507 support to OpenSSL. This includes the corrections in
78 RFC4507bis. The encrypted ticket format is an encrypted encoded
79 SSL_SESSION structure, that way new session features are automatically
82 If a client application caches session in an SSL_SESSION structure
83 support is transparent because tickets are now stored in the encoded
86 The SSL_CTX structure automatically generates keys for ticket
87 protection in servers so again support should be possible
88 with no application modification.
90 If a client or server wishes to disable RFC4507 support then the option
91 SSL_OP_NO_TICKET can be set.
93 Add a TLS extension debugging callback to allow the contents of any client
94 or server extensions to be examined.
96 This work was sponsored by Google.
99 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
100 OpenSSL should now compile cleanly on gcc 4.2
101 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
103 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
104 support including streaming MAC support: this is required for GOST
106 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
108 *) Add option -stream to use PKCS#7 streaming in smime utility. New
109 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
110 to output in BER and PEM format.
113 *) Experimental support for use of HMAC via EVP_PKEY interface. This
114 allows HMAC to be handled via the EVP_DigestSign*() interface. The
115 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
116 ENGINE support for HMAC keys which are unextractable. New -mac and
117 -macopt options to dgst utility.
120 *) New option -sigopt to dgst utility. Update dgst to use
121 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
122 alternative signing paramaters such as X9.31 or PSS in the dgst
126 *) Change ssl_cipher_apply_rule(), the internal function that does
127 the work each time a ciphersuite string requests enabling
128 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
129 removing ("!foo+bar") a class of ciphersuites: Now it maintains
130 the order of disabled ciphersuites such that those ciphersuites
131 that most recently went from enabled to disabled not only stay
132 in order with respect to each other, but also have higher priority
133 than other disabled ciphersuites the next time ciphersuites are
136 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
137 the same ciphersuites as with "HIGH" alone, but in a specific
138 order where the PSK ciphersuites come first (since they are the
139 most recently disabled ciphersuites when "HIGH" is parsed).
141 Also, change ssl_create_cipher_list() (using this new
142 funcionality) such that between otherwise identical
143 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
147 *) Change ssl_create_cipher_list() so that it automatically
148 arranges the ciphersuites in reasonable order before starting
149 to process the rule string. Thus, the definition for "DEFAULT"
150 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
151 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
152 This makes it much easier to arrive at a reasonable default order
153 in applications for which anonymous ciphers are OK (meaning
154 that you can't actually use DEFAULT).
155 [Bodo Moeller; suggested by Victor Duchovni]
157 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
158 processing) into multiple integers instead of setting
159 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
160 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
161 (These masks as well as the individual bit definitions are hidden
162 away into the non-exported interface ssl/ssl_locl.h, so this
163 change to the definition of the SSL_CIPHER structure shouldn't
164 affect applications.) This give us more bits for each of these
165 categories, so there is no longer a need to coagulate AES128 and
166 AES256 into a single algorithm bit, and to coagulate Camellia128
167 and Camellia256 into a single algorithm bit, which has led to all
170 Thus, among other things, the kludge introduced in 0.9.7m and
171 0.9.8e for masking out AES256 independently of AES128 or masking
172 out Camellia256 independently of AES256 is not needed here in 0.9.9.
174 With the change, we also introduce new ciphersuite aliases that
175 so far were missing: "AES128", "AES256", "CAMELLIA128", and
179 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
180 Use the leftmost N bytes of the signature input if the input is
181 larger than the prime q (with N being the size in bytes of q).
184 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
185 it yet and it is largely untested.
188 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
191 *) Initial incomplete changes to avoid need for function casts in OpenSSL
192 some compilers (gcc 4.2 and later) reject their use. Safestack is
193 reimplemented. Update ASN1 to avoid use of legacy functions.
196 *) Win32/64 targets are linked with Winsock2.
199 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
200 to external functions. This can be used to increase CRL handling
201 efficiency especially when CRLs are very large by (for example) storing
202 the CRL revoked certificates in a database.
205 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
206 new CRLs added to a directory can be used. New command line option
207 -verify_return_error to s_client and s_server. This causes real errors
208 to be returned by the verify callback instead of carrying on no matter
209 what. This reflects the way a "real world" verify callback would behave.
212 *) GOST engine, supporting several GOST algorithms and public key formats.
213 Kindly donated by Cryptocom.
216 *) Partial support for Issuing Distribution Point CRL extension. CRLs
217 partitioned by DP are handled but no indirect CRL or reason partitioning
218 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
219 selected via a scoring technique which handles IDP and AKID in CRLs.
222 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
223 will ultimately be used for all verify operations: this will remove the
224 X509_STORE dependency on certificate verification and allow alternative
225 lookup methods. X509_STORE based implementations of these two callbacks.
228 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
229 Modify get_crl() to find a valid (unexpired) CRL if possible.
232 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
233 this would be called X509_CRL_cmp() but that name is already used by
234 a function that just compares CRL issuer names. Cache several CRL
235 extensions in X509_CRL structure and cache CRLDP in X509.
238 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
239 this maps equivalent X509_NAME structures into a consistent structure.
240 Name comparison can then be performed rapidly using memcmp().
243 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
247 *) Allow digests to supply their own micalg string for S/MIME type using
248 the ctrl EVP_MD_CTRL_MICALG.
251 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
252 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
253 ctrl. It can then customise the structure before and/or after signing
257 *) New function OBJ_add_sigid() to allow application defined signature OIDs
258 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
259 to free up any added signature OIDs.
262 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
263 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
264 digest and cipher tables. New options added to openssl utility:
265 list-message-digest-algorithms and list-cipher-algorithms.
268 *) In addition to the numerical (unsigned long) thread ID, provide
269 for a pointer (void *) thread ID. This helps accomodate systems
270 that do not provide an unsigned long thread ID. OpenSSL assumes
271 it is in the same thread iff both the numerical and the pointer
272 thread ID agree; so applications are just required to define one
273 of them appropriately (e.g., by using a pointer to a per-thread
274 memory object malloc()ed by the application for the pointer-type
275 thread ID). Exactly analoguous to the existing functions
277 void CRYPTO_set_id_callback(unsigned long (*func)(void));
278 unsigned long (*CRYPTO_get_id_callback(void))(void);
279 unsigned long CRYPTO_thread_id(void);
281 we now have additional functions
283 void CRYPTO_set_idptr_callback(void *(*func)(void));
284 void *(*CRYPTO_get_idptr_callback(void))(void);
285 void *CRYPTO_thread_idptr(void);
287 also in <openssl/crypto.h>. The default value for
288 CRYPTO_thread_idptr() if the application has not provided its own
292 *) Change the array representation of binary polynomials: the list
293 of degrees of non-zero coefficients is now terminated with -1.
294 Previously it was terminated with 0, which was also part of the
295 value; thus, the array representation was not applicable to
296 polynomials where t^0 has coefficient zero. This change makes
297 the array representation useful in a more general context.
300 *) Various modifications and fixes to SSL/TLS cipher string
301 handling. For ECC, the code now distinguishes between fixed ECDH
302 with RSA certificates on the one hand and with ECDSA certificates
303 on the other hand, since these are separate ciphersuites. The
304 unused code for Fortezza ciphersuites has been removed.
306 For consistency with EDH, ephemeral ECDH is now called "EECDH"
307 (not "ECDHE"). For consistency with the code for DH
308 certificates, use of ECDH certificates is now considered ECDH
309 authentication, not RSA or ECDSA authentication (the latter is
310 merely the CA's signing algorithm and not actively used in the
313 The temporary ciphersuite alias "ECCdraft" is no longer
314 available, and ECC ciphersuites are no longer excluded from "ALL"
315 and "DEFAULT". The following aliases now exist for RFC 4492
316 ciphersuites, most of these by analogy with the DH case:
318 kECDHr - ECDH cert, signed with RSA
319 kECDHe - ECDH cert, signed with ECDSA
320 kECDH - ECDH cert (signed with either RSA or ECDSA)
321 kEECDH - ephemeral ECDH
322 ECDH - ECDH cert or ephemeral ECDH
328 AECDH - anonymous ECDH
329 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
333 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
334 Use correct micalg parameters depending on digest(s) in signed message.
337 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
338 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
341 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
342 an engine to register a method. Add ENGINE lookups for methods and
343 functional reference processing.
346 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
347 EVP_{Sign,Verify}* which allow an application to customise the signature
351 *) New -resign option to smime utility. This adds one or more signers
352 to an existing PKCS#7 signedData structure. Also -md option to use an
353 alternative message digest algorithm for signing.
356 *) Tidy up PKCS#7 routines and add new functions to make it easier to
357 create PKCS7 structures containing multiple signers. Update smime
358 application to support multiple signers.
361 *) New -macalg option to pkcs12 utility to allow setting of an alternative
365 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
366 Reorganize PBE internals to lookup from a static table using NIDs,
367 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
368 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
369 PRF which will be automatically used with PBES2.
372 *) Replace the algorithm specific calls to generate keys in "req" with the
376 *) Update PKCS#7 enveloped data routines to use new API. This is now
377 supported by any public key method supporting the encrypt operation. A
378 ctrl is added to allow the public key algorithm to examine or modify
379 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
383 *) Add a ctrl to asn1 method to allow a public key algorithm to express
384 a default digest type to use. In most cases this will be SHA1 but some
385 algorithms (such as GOST) need to specify an alternative digest. The
386 return value indicates how strong the prefernce is 1 means optional and
387 2 is mandatory (that is it is the only supported type). Modify
388 ASN1_item_sign() to accept a NULL digest argument to indicate it should
389 use the default md. Update openssl utilities to use the default digest
390 type for signing if it is not explicitly indicated.
393 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
394 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
395 signing method from the key type. This effectively removes the link
396 between digests and public key types.
399 *) Add an OID cross reference table and utility functions. Its purpose is to
400 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
401 rsaEncryption. This will allow some of the algorithm specific hackery
402 needed to use the correct OID to be removed.
405 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
406 structures for PKCS7_sign(). They are now set up by the relevant public
410 *) Add provisional EC pkey method with support for ECDSA and ECDH.
413 *) Add support for key derivation (agreement) in the API, DH method and
417 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
418 public and private key formats. As a side effect these add additional
419 command line functionality not previously available: DSA signatures can be
420 generated and verified using pkeyutl and DH key support and generation in
425 [Oliver Tappe <zooey@hirschkaefer.de>]
427 *) New make target "install_html_docs" installs HTML renditions of the
429 [Oliver Tappe <zooey@hirschkaefer.de>]
431 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
432 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
433 support key and parameter generation and add initial key generation
434 functionality for RSA.
437 *) Add functions for main EVP_PKEY_method operations. The undocumented
438 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
439 EVP_PKEY_{encrypt,decrypt}_old.
442 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
443 key API, doesn't do much yet.
446 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
447 public key algorithms. New option to openssl utility:
448 "list-public-key-algorithms" to print out info.
451 *) Implement the Supported Elliptic Curves Extension for
452 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
455 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
456 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
459 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
460 utilities such as rsa, dsa, dsaparam etc except they process any key
464 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
465 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
466 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
470 *) Initial support for pluggable public key ASN1.
471 De-spaghettify the public key ASN1 handling. Move public and private
472 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
473 algorithm specific handling to a single module within the relevant
474 algorithm directory. Add functions to allow (near) opaque processing
475 of public and private key structures.
478 *) Implement the Supported Point Formats Extension for
479 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
482 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
483 for the psk identity [hint] and the psk callback functions to the
484 SSL_SESSION, SSL and SSL_CTX structure.
487 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
491 SSL_CTX_use_psk_identity_hint
492 SSL_get_psk_identity_hint
494 SSL_use_psk_identity_hint
496 [Mika Kousa and Pasi Eronen of Nokia Corporation]
498 *) Add RFC 3161 compliant time stamp request creation, response generation
499 and response verification functionality.
500 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
502 *) Add initial support for TLS extensions, specifically for the server_name
503 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
504 have new members for a host name. The SSL data structure has an
505 additional member SSL_CTX *initial_ctx so that new sessions can be
506 stored in that context to allow for session resumption, even after the
507 SSL has been switched to a new SSL_CTX in reaction to a client's
508 server_name extension.
510 New functions (subject to change):
513 SSL_get_servername_type()
516 New CTRL codes and macros (subject to change):
518 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
519 - SSL_CTX_set_tlsext_servername_callback()
520 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
521 - SSL_CTX_set_tlsext_servername_arg()
522 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
524 openssl s_client has a new '-servername ...' option.
526 openssl s_server has new options '-servername_host ...', '-cert2 ...',
527 '-key2 ...', '-servername_fatal' (subject to change). This allows
528 testing the HostName extension for a specific single host name ('-cert'
529 and '-key' remain fallbacks for handshakes without HostName
530 negotiation). If the unrecogninzed_name alert has to be sent, this by
531 default is a warning; it becomes fatal with the '-servername_fatal'
534 [Peter Sylvester, Remy Allais, Christophe Renou]
536 *) Whirlpool hash implementation is added.
539 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
540 bn(64,32). Because of instruction set limitations it doesn't have
541 any negative impact on performance. This was done mostly in order
542 to make it possible to share assembler modules, such as bn_mul_mont
543 implementations, between 32- and 64-bit builds without hassle.
546 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
547 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
551 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
552 dedicated Montgomery multiplication procedure, is introduced.
553 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
554 "64-bit" performance on certain 32-bit targets.
557 *) New option SSL_OP_NO_COMP to disable use of compression selectively
558 in SSL structures. New SSL ctrl to set maximum send fragment size.
559 Save memory by seeting the I/O buffer sizes dynamically instead of
560 using the maximum available value.
563 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
564 in addition to the text details.
567 *) Very, very preliminary EXPERIMENTAL support for printing of general
568 ASN1 structures. This currently produces rather ugly output and doesn't
569 handle several customised structures at all.
572 *) Integrated support for PVK file format and some related formats such
573 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
574 these in the 'rsa' and 'dsa' utilities.
577 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
580 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
581 place for the (very old) "NETSCAPE" format certificates which are now
582 handled using new ASN1 code equivalents.
585 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
586 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
587 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
590 *) Modify CRL distribution points extension code to print out previously
591 unsupported fields. Enhance extension setting code to allow setting of
595 *) Add print and set support for Issuing Distribution Point CRL extension.
598 *) Change 'Configure' script to enable Camellia by default.
601 Changes between 0.9.8f and 0.9.8g [xx XXX xxxx]
603 *) Implement certificate status request TLS extension defined in RFC3546.
604 A client can set the appropriate parameters and receive the encoded
605 OCSP response via a callback. A server can query the supplied parameters
606 and set the encoded OCSP response in the callback. Add simplified examples
607 to s_client and s_server.
610 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
612 *) DTLS Handshake overhaul. There were longstanding issues with
613 OpenSSL DTLS implementation, which were making it impossible for
614 RFC 4347 compliant client to communicate with OpenSSL server.
615 Unfortunately just fixing these incompatibilities would "cut off"
616 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
617 server keeps tolerating non RFC compliant syntax. The opposite is
618 not true, 0.9.8f client can not communicate with earlier server.
619 This update even addresses CVE-2007-4995.
622 *) Changes to avoid need for function casts in OpenSSL: some compilers
623 (gcc 4.2 and later) reject their use.
624 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
627 *) Add RFC4507 support to OpenSSL. This includes the corrections in
628 RFC4507bis. The encrypted ticket format is an encrypted encoded
629 SSL_SESSION structure, that way new session features are automatically
632 If a client application caches session in an SSL_SESSION structure
633 support is transparent because tickets are now stored in the encoded
636 The SSL_CTX structure automatically generates keys for ticket
637 protection in servers so again support should be possible
638 with no application modification.
640 If a client or server wishes to disable RFC4507 support then the option
641 SSL_OP_NO_TICKET can be set.
643 Add a TLS extension debugging callback to allow the contents of any client
644 or server extensions to be examined.
646 This work was sponsored by Google.
649 *) Add initial support for TLS extensions, specifically for the server_name
650 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
651 have new members for a host name. The SSL data structure has an
652 additional member SSL_CTX *initial_ctx so that new sessions can be
653 stored in that context to allow for session resumption, even after the
654 SSL has been switched to a new SSL_CTX in reaction to a client's
655 server_name extension.
657 New functions (subject to change):
660 SSL_get_servername_type()
663 New CTRL codes and macros (subject to change):
665 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
666 - SSL_CTX_set_tlsext_servername_callback()
667 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
668 - SSL_CTX_set_tlsext_servername_arg()
669 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
671 openssl s_client has a new '-servername ...' option.
673 openssl s_server has new options '-servername_host ...', '-cert2 ...',
674 '-key2 ...', '-servername_fatal' (subject to change). This allows
675 testing the HostName extension for a specific single host name ('-cert'
676 and '-key' remain fallbacks for handshakes without HostName
677 negotiation). If the unrecogninzed_name alert has to be sent, this by
678 default is a warning; it becomes fatal with the '-servername_fatal'
681 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
683 *) Add AES and SSE2 assembly language support to VC++ build.
686 *) Mitigate attack on final subtraction in Montgomery reduction.
689 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
690 (which previously caused an internal error).
693 *) Squeeze another 10% out of IGE mode when in != out.
696 *) AES IGE mode speedup.
697 [Dean Gaudet (Google)]
699 *) Add the Korean symmetric 128-bit cipher SEED (see
700 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
701 add SEED ciphersuites from RFC 4162:
703 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
704 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
705 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
706 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
708 To minimize changes between patchlevels in the OpenSSL 0.9.8
709 series, SEED remains excluded from compilation unless OpenSSL
710 is configured with 'enable-seed'.
713 *) Mitigate branch prediction attacks, which can be practical if a
714 single processor is shared, allowing a spy process to extract
715 information. For detailed background information, see
716 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
717 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
718 and Necessary Software Countermeasures"). The core of the change
719 are new versions BN_div_no_branch() and
720 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
721 respectively, which are slower, but avoid the security-relevant
722 conditional branches. These are automatically called by BN_div()
723 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
724 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
725 remove a conditional branch.
727 BN_FLG_CONSTTIME is the new name for the previous
728 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
729 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
730 in the exponent causes BN_mod_exp_mont() to use the alternative
731 implementation in BN_mod_exp_mont_consttime().) The old name
732 remains as a deprecated alias.
734 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
735 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
736 constant-time implementations for more than just exponentiation.
737 Here too the old name is kept as a deprecated alias.
739 BN_BLINDING_new() will now use BN_dup() for the modulus so that
740 the BN_BLINDING structure gets an independent copy of the
741 modulus. This means that the previous "BIGNUM *m" argument to
742 BN_BLINDING_new() and to BN_BLINDING_create_param() now
743 essentially becomes "const BIGNUM *m", although we can't actually
744 change this in the header file before 0.9.9. It allows
745 RSA_setup_blinding() to use BN_with_flags() on the modulus to
746 enable BN_FLG_CONSTTIME.
748 [Matthew D Wood (Intel Corp)]
750 *) In the SSL/TLS server implementation, be strict about session ID
751 context matching (which matters if an application uses a single
752 external cache for different purposes). Previously,
753 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
754 set. This did ensure strict client verification, but meant that,
755 with applications using a single external cache for quite
756 different requirements, clients could circumvent ciphersuite
757 restrictions for a given session ID context by starting a session
758 in a different context.
761 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
762 a ciphersuite string such as "DEFAULT:RSA" cannot enable
763 authentication-only ciphersuites.
766 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
768 *) Since AES128 and AES256 (and similarly Camellia128 and
769 Camellia256) share a single mask bit in the logic of
770 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
771 kludge to work properly if AES128 is available and AES256 isn't
772 (or if Camellia128 is available and Camellia256 isn't).
775 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
776 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
777 When a point or a seed is encoded in a BIT STRING, we need to
778 prevent the removal of trailing zero bits to get the proper DER
779 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
780 of a NamedBitList, for which trailing 0 bits need to be removed.)
783 *) Have SSL/TLS server implementation tolerate "mismatched" record
784 protocol version while receiving ClientHello even if the
785 ClientHello is fragmented. (The server can't insist on the
786 particular protocol version it has chosen before the ServerHello
787 message has informed the client about his choice.)
790 *) Add RFC 3779 support.
791 [Rob Austein for ARIN, Ben Laurie]
793 *) Load error codes if they are not already present instead of using a
794 static variable. This allows them to be cleanly unloaded and reloaded.
795 Improve header file function name parsing.
798 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
799 or CAPABILITY handshake as required by RFCs.
802 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
804 *) Introduce limits to prevent malicious keys being able to
805 cause a denial of service. (CVE-2006-2940)
806 [Steve Henson, Bodo Moeller]
808 *) Fix ASN.1 parsing of certain invalid structures that can result
809 in a denial of service. (CVE-2006-2937) [Steve Henson]
811 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
812 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
814 *) Fix SSL client code which could crash if connecting to a
815 malicious SSLv2 server. (CVE-2006-4343)
816 [Tavis Ormandy and Will Drewry, Google Security Team]
818 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
819 match only those. Before that, "AES256-SHA" would be interpreted
820 as a pattern and match "AES128-SHA" too (since AES128-SHA got
821 the same strength classification in 0.9.7h) as we currently only
822 have a single AES bit in the ciphersuite description bitmap.
823 That change, however, also applied to ciphersuite strings such as
824 "RC4-MD5" that intentionally matched multiple ciphersuites --
825 namely, SSL 2.0 ciphersuites in addition to the more common ones
826 from SSL 3.0/TLS 1.0.
828 So we change the selection algorithm again: Naming an explicit
829 ciphersuite selects this one ciphersuite, and any other similar
830 ciphersuite (same bitmap) from *other* protocol versions.
831 Thus, "RC4-MD5" again will properly select both the SSL 2.0
832 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
834 Since SSL 2.0 does not have any ciphersuites for which the
835 128/256 bit distinction would be relevant, this works for now.
836 The proper fix will be to use different bits for AES128 and
837 AES256, which would have avoided the problems from the beginning;
838 however, bits are scarce, so we can only do this in a new release
839 (not just a patchlevel) when we can change the SSL_CIPHER
840 definition to split the single 'unsigned long mask' bitmap into
841 multiple values to extend the available space.
845 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
847 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
848 (CVE-2006-4339) [Ben Laurie and Google Security Team]
850 *) Add AES IGE and biIGE modes.
853 *) Change the Unix randomness entropy gathering to use poll() when
854 possible instead of select(), since the latter has some
855 undesirable limitations.
856 [Darryl Miles via Richard Levitte and Bodo Moeller]
858 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
859 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
860 cannot be implicitly activated as part of, e.g., the "AES" alias.
861 However, please upgrade to OpenSSL 0.9.9[-dev] for
862 non-experimental use of the ECC ciphersuites to get TLS extension
863 support, which is required for curve and point format negotiation
864 to avoid potential handshake problems.
867 *) Disable rogue ciphersuites:
869 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
870 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
871 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
873 The latter two were purportedly from
874 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
877 Also deactivate the remaining ciphersuites from
878 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
879 unofficial, and the ID has long expired.
882 *) Fix RSA blinding Heisenbug (problems sometimes occured on
883 dual-core machines) and other potential thread-safety issues.
886 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
887 versions), which is now available for royalty-free use
888 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
889 Also, add Camellia TLS ciphersuites from RFC 4132.
891 To minimize changes between patchlevels in the OpenSSL 0.9.8
892 series, Camellia remains excluded from compilation unless OpenSSL
893 is configured with 'enable-camellia'.
896 *) Disable the padding bug check when compression is in use. The padding
897 bug check assumes the first packet is of even length, this is not
898 necessarily true if compresssion is enabled and can result in false
899 positives causing handshake failure. The actual bug test is ancient
900 code so it is hoped that implementations will either have fixed it by
901 now or any which still have the bug do not support compression.
904 Changes between 0.9.8a and 0.9.8b [04 May 2006]
906 *) When applying a cipher rule check to see if string match is an explicit
907 cipher suite and only match that one cipher suite if it is.
910 *) Link in manifests for VC++ if needed.
911 [Austin Ziegler <halostatue@gmail.com>]
913 *) Update support for ECC-based TLS ciphersuites according to
914 draft-ietf-tls-ecc-12.txt with proposed changes (but without
915 TLS extensions, which are supported starting with the 0.9.9
916 branch, not in the OpenSSL 0.9.8 branch).
919 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
920 opaque EVP_CIPHER_CTX handling.
923 *) Fixes and enhancements to zlib compression code. We now only use
924 "zlib1.dll" and use the default __cdecl calling convention on Win32
925 to conform with the standards mentioned here:
926 http://www.zlib.net/DLL_FAQ.txt
927 Static zlib linking now works on Windows and the new --with-zlib-include
928 --with-zlib-lib options to Configure can be used to supply the location
929 of the headers and library. Gracefully handle case where zlib library
933 *) Several fixes and enhancements to the OID generation code. The old code
934 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
935 handle numbers larger than ULONG_MAX, truncated printing and had a
936 non standard OBJ_obj2txt() behaviour.
939 *) Add support for building of engines under engine/ as shared libraries
940 under VC++ build system.
943 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
944 Hopefully, we will not see any false combination of paths any more.
947 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
949 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
950 (part of SSL_OP_ALL). This option used to disable the
951 countermeasure against man-in-the-middle protocol-version
952 rollback in the SSL 2.0 server implementation, which is a bad
953 idea. (CVE-2005-2969)
955 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
956 for Information Security, National Institute of Advanced Industrial
957 Science and Technology [AIST], Japan)]
959 *) Add two function to clear and return the verify parameter flags.
962 *) Keep cipherlists sorted in the source instead of sorting them at
963 runtime, thus removing the need for a lock.
966 *) Avoid some small subgroup attacks in Diffie-Hellman.
967 [Nick Mathewson and Ben Laurie]
969 *) Add functions for well-known primes.
972 *) Extended Windows CE support.
973 [Satoshi Nakamura and Andy Polyakov]
975 *) Initialize SSL_METHOD structures at compile time instead of during
976 runtime, thus removing the need for a lock.
979 *) Make PKCS7_decrypt() work even if no certificate is supplied by
980 attempting to decrypt each encrypted key in turn. Add support to
984 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
986 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
989 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
992 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
993 key into the same file any more.
996 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
999 *) Add -utf8 command line and config file option to 'ca'.
1000 [Stefan <stf@udoma.org]
1002 *) Removed the macro des_crypt(), as it seems to conflict with some
1003 libraries. Use DES_crypt().
1006 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1007 involves renaming the source and generated shared-libs for
1008 both. The engines will accept the corrected or legacy ids
1009 ('ncipher' and '4758_cca' respectively) when binding. NB,
1010 this only applies when building 'shared'.
1011 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1013 *) Add attribute functions to EVP_PKEY structure. Modify
1014 PKCS12_create() to recognize a CSP name attribute and
1015 use it. Make -CSP option work again in pkcs12 utility.
1018 *) Add new functionality to the bn blinding code:
1019 - automatic re-creation of the BN_BLINDING parameters after
1020 a fixed number of uses (currently 32)
1021 - add new function for parameter creation
1022 - introduce flags to control the update behaviour of the
1023 BN_BLINDING parameters
1024 - hide BN_BLINDING structure
1025 Add a second BN_BLINDING slot to the RSA structure to improve
1026 performance when a single RSA object is shared among several
1030 *) Add support for DTLS.
1031 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1033 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1034 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1037 *) Remove buggy and incompletet DH cert support from
1038 ssl/ssl_rsa.c and ssl/s3_both.c
1041 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1042 the apps/openssl applications.
1045 *) Compile clean with "-Wall -Wmissing-prototypes
1046 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1047 DEBUG_SAFESTACK must also be set.
1050 *) Change ./Configure so that certain algorithms can be disabled by default.
1051 The new counterpiece to "no-xxx" is "enable-xxx".
1053 The patented RC5 and MDC2 algorithms will now be disabled unless
1054 "enable-rc5" and "enable-mdc2", respectively, are specified.
1056 (IDEA remains enabled despite being patented. This is because IDEA
1057 is frequently required for interoperability, and there is no license
1058 fee for non-commercial use. As before, "no-idea" can be used to
1059 avoid this algorithm.)
1063 *) Add processing of proxy certificates (see RFC 3820). This work was
1064 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1065 EGEE (Enabling Grids for E-science in Europe).
1068 *) RC4 performance overhaul on modern architectures/implementations, such
1069 as Intel P4, IA-64 and AMD64.
1072 *) New utility extract-section.pl. This can be used specify an alternative
1073 section number in a pod file instead of having to treat each file as
1074 a separate case in Makefile. This can be done by adding two lines to the
1077 =for comment openssl_section:XXX
1079 The blank line is mandatory.
1083 *) New arguments -certform, -keyform and -pass for s_client and s_server
1084 to allow alternative format key and certificate files and passphrase
1088 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1089 update associated structures and add various utility functions.
1091 Add new policy related verify parameters, include policy checking in
1092 standard verify code. Enhance 'smime' application with extra parameters
1093 to support policy checking and print out.
1096 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1097 Nehemiah processors. These extensions support AES encryption in hardware
1098 as well as RNG (though RNG support is currently disabled).
1099 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1101 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1104 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1105 [Andy Polyakov and a number of other people]
1107 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1108 implementation contributed by IBM.
1109 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1111 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1112 exponent rather than 'unsigned long'. There is a corresponding change to
1113 the new 'rsa_keygen' element of the RSA_METHOD structure.
1114 [Jelte Jansen, Geoff Thorpe]
1116 *) Functionality for creating the initial serial number file is now
1117 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1119 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1120 number file to 1, which is bound to cause problems. To avoid
1121 the problems while respecting compatibility between different 0.9.7
1122 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1123 CA.pl for serial number initialization. With the new release 0.9.8,
1124 we can fix the problem directly in the 'ca' utility.)
1127 *) Reduced header interdepencies by declaring more opaque objects in
1128 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1129 give fewer recursive includes, which could break lazy source code - so
1130 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1131 developers should define this symbol when building and using openssl to
1132 ensure they track the recommended behaviour, interfaces, [etc], but
1133 backwards-compatible behaviour prevails when this isn't defined.
1136 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1139 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1140 This will generate a random key of the appropriate length based on the
1141 cipher context. The EVP_CIPHER can provide its own random key generation
1142 routine to support keys of a specific form. This is used in the des and
1143 3des routines to generate a key of the correct parity. Update S/MIME
1144 code to use new functions and hence generate correct parity DES keys.
1145 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1146 valid (weak or incorrect parity).
1149 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1150 as looking them up. This is useful when the verified structure may contain
1151 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1152 present unless the new PKCS7_NO_CRL flag is asserted.
1155 *) Extend ASN1 oid configuration module. It now additionally accepts the
1158 shortName = some long name, 1.2.3.4
1161 *) Reimplemented the BN_CTX implementation. There is now no more static
1162 limitation on the number of variables it can handle nor the depth of the
1163 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1164 information can now expand as required, and rather than having a single
1165 static array of bignums, BN_CTX now uses a linked-list of such arrays
1166 allowing it to expand on demand whilst maintaining the usefulness of
1167 BN_CTX's "bundling".
1170 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1171 to allow all RSA operations to function using a single BN_CTX.
1174 *) Preliminary support for certificate policy evaluation and checking. This
1175 is initially intended to pass the tests outlined in "Conformance Testing
1176 of Relying Party Client Certificate Path Processing Logic" v1.07.
1179 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1180 remained unused and not that useful. A variety of other little bignum
1181 tweaks and fixes have also been made continuing on from the audit (see
1185 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1186 associated ASN1, EVP and SSL functions and old ASN1 macros.
1189 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1190 and this should never fail. So the return value from the use of
1191 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1192 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1195 *) BN_CTX_get() should return zero-valued bignums, providing the same
1196 initialised value as BN_new().
1197 [Geoff Thorpe, suggested by Ulf Möller]
1199 *) Support for inhibitAnyPolicy certificate extension.
1202 *) An audit of the BIGNUM code is underway, for which debugging code is
1203 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1204 is considered valid when processing BIGNUMs, and causes execution to
1205 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1206 further steps are taken to deliberately pollute unused data in BIGNUM
1207 structures to try and expose faulty code further on. For now, openssl will
1208 (in its default mode of operation) continue to tolerate the inconsistent
1209 forms that it has tolerated in the past, but authors and packagers should
1210 consider trying openssl and their own applications when compiled with
1211 these debugging symbols defined. It will help highlight potential bugs in
1212 their own code, and will improve the test coverage for OpenSSL itself. At
1213 some point, these tighter rules will become openssl's default to improve
1214 maintainability, though the assert()s and other overheads will remain only
1215 in debugging configurations. See bn.h for more details.
1216 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1218 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1219 that can only be obtained through BN_CTX_new() (which implicitly
1220 initialises it). The presence of this function only made it possible
1221 to overwrite an existing structure (and cause memory leaks).
1224 *) Because of the callback-based approach for implementing LHASH as a
1225 template type, lh_insert() adds opaque objects to hash-tables and
1226 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1227 to clean up those corresponding objects before destroying the hash table
1228 (and losing the object pointers). So some over-zealous constifications in
1229 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1230 objects as "const" and the lh_doall[_arg] callback wrappers are not
1231 prototyped to have "const" restrictions on the object pointers they are
1232 given (and so aren't required to cast them away any more).
1235 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1236 (speed) prefers to use its own implementation. The two implementations
1237 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1238 its object type properly exposed (MS_TM) instead of casting to/from "char
1239 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1240 aren't necessarily the greatest nomenclatures - but this is what was used
1241 internally to the implementation so I've used that for now.
1244 *) Ensure that deprecated functions do not get compiled when
1245 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1246 the self-tests were still using deprecated key-generation functions so
1247 these have been updated also.
1250 *) Reorganise PKCS#7 code to separate the digest location functionality
1251 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1252 New function PKCS7_set_digest() to set the digest type for PKCS#7
1253 digestedData type. Add additional code to correctly generate the
1254 digestedData type and add support for this type in PKCS7 initialization
1258 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1259 structure of type "other".
1262 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1263 sure the loop does correctly stop and breaking ("division by zero")
1264 modulus operations are not performed. The (pre-generated) prime
1265 table crypto/bn/bn_prime.h was already correct, but it could not be
1266 re-generated on some platforms because of the "division by zero"
1267 situation in the script.
1268 [Ralf S. Engelschall]
1270 *) Update support for ECC-based TLS ciphersuites according to
1271 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1272 SHA-1 now is only used for "small" curves (where the
1273 representation of a field element takes up to 24 bytes); for
1274 larger curves, the field element resulting from ECDH is directly
1275 used as premaster secret.
1276 [Douglas Stebila (Sun Microsystems Laboratories)]
1278 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1279 curve secp160r1 to the tests.
1280 [Douglas Stebila (Sun Microsystems Laboratories)]
1282 *) Add the possibility to load symbols globally with DSO.
1283 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1285 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1286 control of the error stack.
1289 *) Add support for STORE in ENGINE.
1292 *) Add the STORE type. The intention is to provide a common interface
1293 to certificate and key stores, be they simple file-based stores, or
1294 HSM-type store, or LDAP stores, or...
1295 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1298 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1299 pass a list of arguments to any function as well as provide a way
1300 for a function to pass data back to the caller.
1303 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1304 works like BUF_strdup() but can be used to duplicate a portion of
1305 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1309 *) Add the function sk_find_ex() which works like sk_find(), but will
1310 return an index to an element even if an exact match couldn't be
1311 found. The index is guaranteed to point at the element where the
1312 searched-for key would be inserted to preserve sorting order.
1315 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1316 takes an extra flags argument for optional functionality. Currently,
1317 the following flags are defined:
1319 OBJ_BSEARCH_VALUE_ON_NOMATCH
1320 This one gets OBJ_bsearch_ex() to return a pointer to the first
1321 element where the comparing function returns a negative or zero
1324 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1325 This one gets OBJ_bsearch_ex() to return a pointer to the first
1326 element where the comparing function returns zero. This is useful
1327 if there are more than one element where the comparing function
1331 *) Make it possible to create self-signed certificates with 'openssl ca'
1332 in such a way that the self-signed certificate becomes part of the
1333 CA database and uses the same mechanisms for serial number generation
1334 as all other certificate signing. The new flag '-selfsign' enables
1335 this functionality. Adapt CA.sh and CA.pl.in.
1338 *) Add functionality to check the public key of a certificate request
1339 against a given private. This is useful to check that a certificate
1340 request can be signed by that key (self-signing).
1343 *) Make it possible to have multiple active certificates with the same
1344 subject in the CA index file. This is done only if the keyword
1345 'unique_subject' is set to 'no' in the main CA section (default
1346 if 'CA_default') of the configuration file. The value is saved
1347 with the database itself in a separate index attribute file,
1348 named like the index file with '.attr' appended to the name.
1351 *) Generate muti valued AVAs using '+' notation in config files for
1355 *) Support for nameConstraints certificate extension.
1358 *) Support for policyConstraints certificate extension.
1361 *) Support for policyMappings certificate extension.
1364 *) Make sure the default DSA_METHOD implementation only uses its
1365 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1366 and change its own handlers to be NULL so as to remove unnecessary
1367 indirection. This lets alternative implementations fallback to the
1368 default implementation more easily.
1371 *) Support for directoryName in GeneralName related extensions
1375 *) Make it possible to link applications using Makefile.shared.
1376 Make that possible even when linking against static libraries!
1379 *) Support for single pass processing for S/MIME signing. This now
1380 means that S/MIME signing can be done from a pipe, in addition
1381 cleartext signing (multipart/signed type) is effectively streaming
1382 and the signed data does not need to be all held in memory.
1384 This is done with a new flag PKCS7_STREAM. When this flag is set
1385 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1386 is done after the data is output (and digests calculated) in
1387 SMIME_write_PKCS7().
1390 *) Add full support for -rpath/-R, both in shared libraries and
1391 applications, at least on the platforms where it's known how
1395 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1396 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1397 will now compute a table of multiples of the generator that
1398 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1399 faster (notably in the case of a single point multiplication,
1400 scalar * generator).
1401 [Nils Larsch, Bodo Moeller]
1403 *) IPv6 support for certificate extensions. The various extensions
1404 which use the IP:a.b.c.d can now take IPv6 addresses using the
1405 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1409 *) Added an ENGINE that implements RSA by performing private key
1410 exponentiations with the GMP library. The conversions to and from
1411 GMP's mpz_t format aren't optimised nor are any montgomery forms
1412 cached, and on x86 it appears OpenSSL's own performance has caught up.
1413 However there are likely to be other architectures where GMP could
1414 provide a boost. This ENGINE is not built in by default, but it can be
1415 specified at Configure time and should be accompanied by the necessary
1416 linker additions, eg;
1417 ./config -DOPENSSL_USE_GMP -lgmp
1420 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1421 testing availability of engines with "-t" - the old behaviour is
1422 produced by increasing the feature's verbosity with "-tt".
1425 *) ECDSA routines: under certain error conditions uninitialized BN objects
1426 could be freed. Solution: make sure initialization is performed early
1427 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1431 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1432 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1433 software implementations. For DSA and DH, parameter generation can
1434 also be overriden by providing the appropriate method callbacks.
1437 *) Change the "progress" mechanism used in key-generation and
1438 primality testing to functions that take a new BN_GENCB pointer in
1439 place of callback/argument pairs. The new API functions have "_ex"
1440 postfixes and the older functions are reimplemented as wrappers for
1441 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1442 declarations of the old functions to help (graceful) attempts to
1443 migrate to the new functions. Also, the new key-generation API
1444 functions operate on a caller-supplied key-structure and return
1445 success/failure rather than returning a key or NULL - this is to
1446 help make "keygen" another member function of RSA_METHOD etc.
1448 Example for using the new callback interface:
1450 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1454 BN_GENCB_set(&my_cb, my_callback, my_arg);
1456 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1457 /* For the meaning of a, b in calls to my_callback(), see the
1458 * documentation of the function that calls the callback.
1459 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1460 * my_callback should return 1 if it wants BN_is_prime_ex()
1461 * to continue, or 0 to stop.
1466 *) Change the ZLIB compression method to be stateful, and make it
1467 available to TLS with the number defined in
1468 draft-ietf-tls-compression-04.txt.
1471 *) Add the ASN.1 structures and functions for CertificatePair, which
1472 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1474 CertificatePair ::= SEQUENCE {
1475 forward [0] Certificate OPTIONAL,
1476 reverse [1] Certificate OPTIONAL,
1477 -- at least one of the pair shall be present -- }
1479 Also implement the PEM functions to read and write certificate
1480 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1482 This needed to be defined, mostly for the sake of the LDAP
1483 attribute crossCertificatePair, but may prove useful elsewhere as
1487 *) Make it possible to inhibit symlinking of shared libraries in
1488 Makefile.shared, for Cygwin's sake.
1491 *) Extend the BIGNUM API by creating a function
1492 void BN_set_negative(BIGNUM *a, int neg);
1493 and a macro that behave like
1494 int BN_is_negative(const BIGNUM *a);
1496 to avoid the need to access 'a->neg' directly in applications.
1499 *) Implement fast modular reduction for pseudo-Mersenne primes
1500 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1501 EC_GROUP_new_curve_GFp() will now automatically use this
1503 [Nils Larsch <nla@trustcenter.de>]
1505 *) Add new lock type (CRYPTO_LOCK_BN).
1508 *) Change the ENGINE framework to automatically load engines
1509 dynamically from specific directories unless they could be
1510 found to already be built in or loaded. Move all the
1511 current engines except for the cryptodev one to a new
1513 The engines in engines/ are built as shared libraries if
1514 the "shared" options was given to ./Configure or ./config.
1515 Otherwise, they are inserted in libcrypto.a.
1516 /usr/local/ssl/engines is the default directory for dynamic
1517 engines, but that can be overriden at configure time through
1518 the usual use of --prefix and/or --openssldir, and at run
1519 time with the environment variable OPENSSL_ENGINES.
1520 [Geoff Thorpe and Richard Levitte]
1522 *) Add Makefile.shared, a helper makefile to build shared
1523 libraries. Addapt Makefile.org.
1526 *) Add version info to Win32 DLLs.
1527 [Peter 'Luna' Runestig" <peter@runestig.com>]
1529 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1530 can be added using this API to created arbitrary PKCS#12
1531 files while avoiding the low level API.
1533 New options to PKCS12_create(), key or cert can be NULL and
1534 will then be omitted from the output file. The encryption
1535 algorithm NIDs can be set to -1 for no encryption, the mac
1536 iteration count can be set to 0 to omit the mac.
1538 Enhance pkcs12 utility by making the -nokeys and -nocerts
1539 options work when creating a PKCS#12 file. New option -nomac
1540 to omit the mac, NONE can be set for an encryption algorithm.
1541 New code is modified to use the enhanced PKCS12_create()
1542 instead of the low level API.
1545 *) Extend ASN1 encoder to support indefinite length constructed
1546 encoding. This can output sequences tags and octet strings in
1547 this form. Modify pk7_asn1.c to support indefinite length
1548 encoding. This is experimental and needs additional code to
1549 be useful, such as an ASN1 bio and some enhanced streaming
1552 Extend template encode functionality so that tagging is passed
1553 down to the template encoder.
1556 *) Let 'openssl req' fail if an argument to '-newkey' is not
1557 recognized instead of using RSA as a default.
1560 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1561 As these are not official, they are not included in "ALL";
1562 the "ECCdraft" ciphersuite group alias can be used to select them.
1563 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1565 *) Add ECDH engine support.
1566 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1568 *) Add ECDH in new directory crypto/ecdh/.
1569 [Douglas Stebila (Sun Microsystems Laboratories)]
1571 *) Let BN_rand_range() abort with an error after 100 iterations
1572 without success (which indicates a broken PRNG).
1575 *) Change BN_mod_sqrt() so that it verifies that the input value
1576 is really the square of the return value. (Previously,
1577 BN_mod_sqrt would show GIGO behaviour.)
1580 *) Add named elliptic curves over binary fields from X9.62, SECG,
1581 and WAP/WTLS; add OIDs that were still missing.
1583 [Sheueling Chang Shantz and Douglas Stebila
1584 (Sun Microsystems Laboratories)]
1586 *) Extend the EC library for elliptic curves over binary fields
1587 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1590 EC_GF2m_simple_method
1594 EC_GROUP_new_curve_GF2m
1595 EC_GROUP_set_curve_GF2m
1596 EC_GROUP_get_curve_GF2m
1597 EC_POINT_set_affine_coordinates_GF2m
1598 EC_POINT_get_affine_coordinates_GF2m
1599 EC_POINT_set_compressed_coordinates_GF2m
1601 Point compression for binary fields is disabled by default for
1602 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1605 As binary polynomials are represented as BIGNUMs, various members
1606 of the EC_GROUP and EC_POINT data structures can be shared
1607 between the implementations for prime fields and binary fields;
1608 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1609 are essentially identical to their ..._GFp counterparts.
1610 (For simplicity, the '..._GFp' prefix has been dropped from
1611 various internal method names.)
1613 An internal 'field_div' method (similar to 'field_mul' and
1614 'field_sqr') has been added; this is used only for binary fields.
1616 [Sheueling Chang Shantz and Douglas Stebila
1617 (Sun Microsystems Laboratories)]
1619 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1620 through methods ('mul', 'precompute_mult').
1622 The generic implementations (now internally called 'ec_wNAF_mul'
1623 and 'ec_wNAF_precomputed_mult') remain the default if these
1624 methods are undefined.
1626 [Sheueling Chang Shantz and Douglas Stebila
1627 (Sun Microsystems Laboratories)]
1629 *) New function EC_GROUP_get_degree, which is defined through
1630 EC_METHOD. For curves over prime fields, this returns the bit
1631 length of the modulus.
1633 [Sheueling Chang Shantz and Douglas Stebila
1634 (Sun Microsystems Laboratories)]
1636 *) New functions EC_GROUP_dup, EC_POINT_dup.
1637 (These simply call ..._new and ..._copy).
1639 [Sheueling Chang Shantz and Douglas Stebila
1640 (Sun Microsystems Laboratories)]
1642 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1643 Polynomials are represented as BIGNUMs (where the sign bit is not
1644 used) in the following functions [macros]:
1647 BN_GF2m_sub [= BN_GF2m_add]
1648 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1649 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1650 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1652 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1653 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1654 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1655 BN_GF2m_cmp [= BN_ucmp]
1657 (Note that only the 'mod' functions are actually for fields GF(2^m).
1658 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1660 For some functions, an the irreducible polynomial defining a
1661 field can be given as an 'unsigned int[]' with strictly
1662 decreasing elements giving the indices of those bits that are set;
1663 i.e., p[] represents the polynomial
1664 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1666 p[0] > p[1] > ... > p[k] = 0.
1667 This applies to the following functions:
1672 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1673 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1675 BN_GF2m_mod_sqrt_arr
1676 BN_GF2m_mod_solve_quad_arr
1680 Conversion can be performed by the following functions:
1685 bntest.c has additional tests for binary polynomial arithmetic.
1687 Two implementations for BN_GF2m_mod_div() are available.
1688 The default algorithm simply uses BN_GF2m_mod_inv() and
1689 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1690 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1691 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1693 [Sheueling Chang Shantz and Douglas Stebila
1694 (Sun Microsystems Laboratories)]
1696 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1697 functionality is disabled at compile-time.
1698 [Douglas Stebila <douglas.stebila@sun.com>]
1700 *) Change default behaviour of 'openssl asn1parse' so that more
1701 information is visible when viewing, e.g., a certificate:
1703 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1704 mode the content of non-printable OCTET STRINGs is output in a
1705 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1706 avoid the appearance of a printable string.
1707 [Nils Larsch <nla@trustcenter.de>]
1709 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1711 EC_GROUP_set_asn1_flag()
1712 EC_GROUP_get_asn1_flag()
1713 EC_GROUP_set_point_conversion_form()
1714 EC_GROUP_get_point_conversion_form()
1715 These control ASN1 encoding details:
1716 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1717 has been set to OPENSSL_EC_NAMED_CURVE.
1718 - Points are encoded in uncompressed form by default; options for
1719 asn1_for are as for point2oct, namely
1720 POINT_CONVERSION_COMPRESSED
1721 POINT_CONVERSION_UNCOMPRESSED
1722 POINT_CONVERSION_HYBRID
1724 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1727 EC_GROUP_get0_seed()
1728 EC_GROUP_get_seed_len()
1729 This is used only for ASN1 purposes (so far).
1730 [Nils Larsch <nla@trustcenter.de>]
1732 *) Add 'field_type' member to EC_METHOD, which holds the NID
1733 of the appropriate field type OID. The new function
1734 EC_METHOD_get_field_type() returns this value.
1735 [Nils Larsch <nla@trustcenter.de>]
1740 EC_POINT_point2hex()
1741 EC_POINT_hex2point()
1742 providing useful interfaces to EC_POINT_point2oct() and
1743 EC_POINT_oct2point().
1744 [Nils Larsch <nla@trustcenter.de>]
1746 *) Change internals of the EC library so that the functions
1747 EC_GROUP_set_generator()
1748 EC_GROUP_get_generator()
1749 EC_GROUP_get_order()
1750 EC_GROUP_get_cofactor()
1751 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1752 to methods, which would lead to unnecessary code duplication when
1753 adding different types of curves.
1754 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1756 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1757 arithmetic, and such that modified wNAFs are generated
1758 (which avoid length expansion in many cases).
1761 *) Add a function EC_GROUP_check_discriminant() (defined via
1762 EC_METHOD) that verifies that the curve discriminant is non-zero.
1764 Add a function EC_GROUP_check() that makes some sanity tests
1765 on a EC_GROUP, its generator and order. This includes
1766 EC_GROUP_check_discriminant().
1767 [Nils Larsch <nla@trustcenter.de>]
1769 *) Add ECDSA in new directory crypto/ecdsa/.
1771 Add applications 'openssl ecparam' and 'openssl ecdsa'
1772 (these are based on 'openssl dsaparam' and 'openssl dsa').
1774 ECDSA support is also included in various other files across the
1775 library. Most notably,
1776 - 'openssl req' now has a '-newkey ecdsa:file' option;
1777 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1778 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1779 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1780 them suitable for ECDSA where domain parameters must be
1781 extracted before the specific public key;
1782 - ECDSA engine support has been added.
1783 [Nils Larsch <nla@trustcenter.de>]
1785 *) Include some named elliptic curves, and add OIDs from X9.62,
1786 SECG, and WAP/WTLS. Each curve can be obtained from the new
1788 EC_GROUP_new_by_curve_name(),
1789 and the list of available named curves can be obtained with
1790 EC_get_builtin_curves().
1791 Also add a 'curve_name' member to EC_GROUP objects, which can be
1793 EC_GROUP_set_curve_name()
1794 EC_GROUP_get_curve_name()
1795 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1797 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1798 was actually never needed) and in BN_mul(). The removal in BN_mul()
1799 required a small change in bn_mul_part_recursive() and the addition
1800 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1801 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1802 bn_sub_words() and bn_add_words() except they take arrays with
1806 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1808 *) In the SSL/TLS server implementation, be strict about session ID
1809 context matching (which matters if an application uses a single
1810 external cache for different purposes). Previously,
1811 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1812 set. This did ensure strict client verification, but meant that,
1813 with applications using a single external cache for quite
1814 different requirements, clients could circumvent ciphersuite
1815 restrictions for a given session ID context by starting a session
1816 in a different context.
1819 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1821 *) Cleanse PEM buffers before freeing them since they may contain
1823 [Benjamin Bennett <ben@psc.edu>]
1825 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1826 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1827 authentication-only ciphersuites.
1830 *) Since AES128 and AES256 share a single mask bit in the logic of
1831 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1832 kludge to work properly if AES128 is available and AES256 isn't.
1835 *) Expand security boundary to match 1.1.1 module.
1838 *) Remove redundant features: hash file source, editing of test vectors
1839 modify fipsld to use external fips_premain.c signature.
1842 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1843 run algorithm test programs.
1846 *) Make algorithm test programs more tolerant of whitespace.
1849 *) Have SSL/TLS server implementation tolerate "mismatched" record
1850 protocol version while receiving ClientHello even if the
1851 ClientHello is fragmented. (The server can't insist on the
1852 particular protocol version it has chosen before the ServerHello
1853 message has informed the client about his choice.)
1856 *) Load error codes if they are not already present instead of using a
1857 static variable. This allows them to be cleanly unloaded and reloaded.
1860 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1862 *) Introduce limits to prevent malicious keys being able to
1863 cause a denial of service. (CVE-2006-2940)
1864 [Steve Henson, Bodo Moeller]
1866 *) Fix ASN.1 parsing of certain invalid structures that can result
1867 in a denial of service. (CVE-2006-2937) [Steve Henson]
1869 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1870 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1872 *) Fix SSL client code which could crash if connecting to a
1873 malicious SSLv2 server. (CVE-2006-4343)
1874 [Tavis Ormandy and Will Drewry, Google Security Team]
1876 *) Change ciphersuite string processing so that an explicit
1877 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1878 will no longer include "AES128-SHA"), and any other similar
1879 ciphersuite (same bitmap) from *other* protocol versions (so that
1880 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1881 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1882 changes from 0.9.8b and 0.9.8d.
1885 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1887 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1888 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1890 *) Change the Unix randomness entropy gathering to use poll() when
1891 possible instead of select(), since the latter has some
1892 undesirable limitations.
1893 [Darryl Miles via Richard Levitte and Bodo Moeller]
1895 *) Disable rogue ciphersuites:
1897 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1898 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1899 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1901 The latter two were purportedly from
1902 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1905 Also deactive the remaining ciphersuites from
1906 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1907 unofficial, and the ID has long expired.
1910 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1911 dual-core machines) and other potential thread-safety issues.
1914 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1916 *) Adapt fipsld and the build system to link against the validated FIPS
1917 module in FIPS mode.
1920 *) Fixes for VC++ 2005 build under Windows.
1923 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1924 from a Windows bash shell such as MSYS. It is autodetected from the
1925 "config" script when run from a VC++ environment. Modify standard VC++
1926 build to use fipscanister.o from the GNU make build.
1929 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1931 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1932 The value now differs depending on if you build for FIPS or not.
1933 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1934 safely run with a non-FIPSed libcrypto, as it may crash because of
1935 the difference induced by this change.
1938 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1940 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1941 (part of SSL_OP_ALL). This option used to disable the
1942 countermeasure against man-in-the-middle protocol-version
1943 rollback in the SSL 2.0 server implementation, which is a bad
1944 idea. (CVE-2005-2969)
1946 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1947 for Information Security, National Institute of Advanced Industrial
1948 Science and Technology [AIST], Japan)]
1950 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1951 mainly for FIPS compliance and not fully integrated at this stage.
1954 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1955 the exponentiation using a fixed-length exponent. (Otherwise,
1956 the information leaked through timing could expose the secret key
1957 after many signatures; cf. Bleichenbacher's attack on DSA with
1961 *) Make a new fixed-window mod_exp implementation the default for
1962 RSA, DSA, and DH private-key operations so that the sequence of
1963 squares and multiplies and the memory access pattern are
1964 independent of the particular secret key. This will mitigate
1965 cache-timing and potential related attacks.
1967 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1968 and this is automatically used by BN_mod_exp_mont() if the new flag
1969 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1970 will use this BN flag for private exponents unless the flag
1971 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1972 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1974 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1976 *) Change the client implementation for SSLv23_method() and
1977 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1978 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1979 (Previously, the SSL 2.0 backwards compatible Client Hello
1980 message format would be used even with SSL_OP_NO_SSLv2.)
1983 *) Add support for smime-type MIME parameter in S/MIME messages which some
1987 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1988 a threadsafe manner. Modify rsa code to use new function and add calls
1989 to dsa and dh code (which had race conditions before).
1992 *) Include the fixed error library code in the C error file definitions
1993 instead of fixing them up at runtime. This keeps the error code
1994 structures constant.
1997 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1999 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2002 *) Fixes for newer kerberos headers. NB: the casts are needed because
2003 the 'length' field is signed on one version and unsigned on another
2004 with no (?) obvious way to tell the difference, without these VC++
2005 complains. Also the "definition" of FAR (blank) is no longer included
2006 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2007 some needed definitions.
2010 *) Undo Cygwin change.
2013 *) Added support for proxy certificates according to RFC 3820.
2014 Because they may be a security thread to unaware applications,
2015 they must be explicitely allowed in run-time. See
2016 docs/HOWTO/proxy_certificates.txt for further information.
2019 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2021 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2022 server and client random values. Previously
2023 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2024 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2026 This change has negligible security impact because:
2028 1. Server and client random values still have 24 bytes of pseudo random
2031 2. Server and client random values are sent in the clear in the initial
2034 3. The master secret is derived using the premaster secret (48 bytes in
2035 size for static RSA ciphersuites) as well as client server and random
2038 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2041 [Stephen Henson, reported by UK NISCC]
2043 *) Use Windows randomness collection on Cygwin.
2046 *) Fix hang in EGD/PRNGD query when communication socket is closed
2047 prematurely by EGD/PRNGD.
2048 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2050 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2053 *) Back-port of selected performance improvements from development
2054 branch, as well as improved support for PowerPC platforms.
2057 *) Add lots of checks for memory allocation failure, error codes to indicate
2058 failure and freeing up memory if a failure occurs.
2059 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2061 *) Add new -passin argument to dgst.
2064 *) Perform some character comparisons of different types in X509_NAME_cmp:
2065 this is needed for some certificates that reencode DNs into UTF8Strings
2066 (in violation of RFC3280) and can't or wont issue name rollover
2070 *) Make an explicit check during certificate validation to see that
2071 the CA setting in each certificate on the chain is correct. As a
2072 side effect always do the following basic checks on extensions,
2073 not just when there's an associated purpose to the check:
2075 - if there is an unhandled critical extension (unless the user
2076 has chosen to ignore this fault)
2077 - if the path length has been exceeded (if one is set at all)
2078 - that certain extensions fit the associated purpose (if one has
2082 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2084 *) Avoid a race condition when CRLs are checked in a multi threaded
2085 environment. This would happen due to the reordering of the revoked
2086 entries during signature checking and serial number lookup. Now the
2087 encoding is cached and the serial number sort performed under a lock.
2088 Add new STACK function sk_is_sorted().
2091 *) Add Delta CRL to the extension code.
2094 *) Various fixes to s3_pkt.c so alerts are sent properly.
2095 [David Holmes <d.holmes@f5.com>]
2097 *) Reduce the chances of duplicate issuer name and serial numbers (in
2098 violation of RFC3280) using the OpenSSL certificate creation utilities.
2099 This is done by creating a random 64 bit value for the initial serial
2100 number when a serial number file is created or when a self signed
2101 certificate is created using 'openssl req -x509'. The initial serial
2102 number file is created using 'openssl x509 -next_serial' in CA.pl
2103 rather than being initialized to 1.
2106 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2108 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2109 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2110 [Joe Orton, Steve Henson]
2112 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2114 [Joe Orton, Steve Henson]
2116 *) Make it possible to have multiple active certificates with the same
2117 subject in the CA index file. This is done only if the keyword
2118 'unique_subject' is set to 'no' in the main CA section (default
2119 if 'CA_default') of the configuration file. The value is saved
2120 with the database itself in a separate index attribute file,
2121 named like the index file with '.attr' appended to the name.
2124 *) X509 verify fixes. Disable broken certificate workarounds when
2125 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2126 keyUsage extension present. Don't accept CRLs with unhandled critical
2127 extensions: since verify currently doesn't process CRL extensions this
2128 rejects a CRL with *any* critical extensions. Add new verify error codes
2132 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2133 A clarification of RFC2560 will require the use of OCTET STRINGs and
2134 some implementations cannot handle the current raw format. Since OpenSSL
2135 copies and compares OCSP nonces as opaque blobs without any attempt at
2136 parsing them this should not create any compatibility issues.
2139 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2140 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2141 this HMAC (and other) operations are several times slower than OpenSSL
2145 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2146 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2148 *) Use the correct content when signing type "other".
2151 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2153 *) Fix various bugs revealed by running the NISCC test suite:
2155 Stop out of bounds reads in the ASN1 code when presented with
2156 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2158 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2160 If verify callback ignores invalid public key errors don't try to check
2161 certificate signature with the NULL public key.
2165 *) New -ignore_err option in ocsp application to stop the server
2166 exiting on the first error in a request.
2169 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2170 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2174 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2175 extra data after the compression methods not only for TLS 1.0
2176 but also for SSL 3.0 (as required by the specification).
2177 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2179 *) Change X509_certificate_type() to mark the key as exported/exportable
2180 when it's 512 *bits* long, not 512 bytes.
2183 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2184 blocks during encryption.
2187 *) Various fixes to base64 BIO and non blocking I/O. On write
2188 flushes were not handled properly if the BIO retried. On read
2189 data was not being buffered properly and had various logic bugs.
2190 This also affects blocking I/O when the data being decoded is a
2194 *) Various S/MIME bugfixes and compatibility changes:
2195 output correct application/pkcs7 MIME type if
2196 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2197 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2198 of files as .eml work). Correctly handle very long lines in MIME
2202 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2204 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2205 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2206 a protocol version number mismatch like a decryption error
2207 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2210 *) Turn on RSA blinding by default in the default implementation
2211 to avoid a timing attack. Applications that don't want it can call
2212 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2213 They would be ill-advised to do so in most cases.
2214 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2216 *) Change RSA blinding code so that it works when the PRNG is not
2217 seeded (in this case, the secret RSA exponent is abused as
2218 an unpredictable seed -- if it is not unpredictable, there
2219 is no point in blinding anyway). Make RSA blinding thread-safe
2220 by remembering the creator's thread ID in rsa->blinding and
2221 having all other threads use local one-time blinding factors
2222 (this requires more computation than sharing rsa->blinding, but
2223 avoids excessive locking; and if an RSA object is not shared
2224 between threads, blinding will still be very fast).
2227 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2228 ENGINE as defaults for all supported algorithms irrespective of
2229 the 'flags' parameter. 'flags' is now honoured, so applications
2230 should make sure they are passing it correctly.
2233 *) Target "mingw" now allows native Windows code to be generated in
2234 the Cygwin environment as well as with the MinGW compiler.
2237 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2239 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2240 via timing by performing a MAC computation even if incorrrect
2241 block cipher padding has been found. This is a countermeasure
2242 against active attacks where the attacker has to distinguish
2243 between bad padding and a MAC verification error. (CVE-2003-0078)
2245 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2246 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2247 Martin Vuagnoux (EPFL, Ilion)]
2249 *) Make the no-err option work as intended. The intention with no-err
2250 is not to have the whole error stack handling routines removed from
2251 libcrypto, it's only intended to remove all the function name and
2252 reason texts, thereby removing some of the footprint that may not
2253 be interesting if those errors aren't displayed anyway.
2255 NOTE: it's still possible for any application or module to have it's
2256 own set of error texts inserted. The routines are there, just not
2257 used by default when no-err is given.
2260 *) Add support for FreeBSD on IA64.
2261 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2263 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2264 Kerberos function mit_des_cbc_cksum(). Before this change,
2265 the value returned by DES_cbc_cksum() was like the one from
2266 mit_des_cbc_cksum(), except the bytes were swapped.
2267 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2269 *) Allow an application to disable the automatic SSL chain building.
2270 Before this a rather primitive chain build was always performed in
2271 ssl3_output_cert_chain(): an application had no way to send the
2272 correct chain if the automatic operation produced an incorrect result.
2274 Now the chain builder is disabled if either:
2276 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2278 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2280 The reasoning behind this is that an application would not want the
2281 auto chain building to take place if extra chain certificates are
2282 present and it might also want a means of sending no additional
2283 certificates (for example the chain has two certificates and the
2287 *) Add the possibility to build without the ENGINE framework.
2288 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2290 *) Under Win32 gmtime() can return NULL: check return value in
2291 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2294 *) DSA routines: under certain error conditions uninitialized BN objects
2295 could be freed. Solution: make sure initialization is performed early
2296 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2297 Nils Larsch <nla@trustcenter.de> via PR#459)
2300 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2301 checked on reconnect on the client side, therefore session resumption
2302 could still fail with a "ssl session id is different" error. This
2303 behaviour is masked when SSL_OP_ALL is used due to
2304 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2305 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2306 followup to PR #377.
2309 *) IA-32 assembler support enhancements: unified ELF targets, support
2310 for SCO/Caldera platforms, fix for Cygwin shared build.
2313 *) Add support for FreeBSD on sparc64. As a consequence, support for
2314 FreeBSD on non-x86 processors is separate from x86 processors on
2315 the config script, much like the NetBSD support.
2316 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2318 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2320 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2323 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2324 code (06) was taken as the first octet of the session ID and the last
2325 octet was ignored consequently. As a result SSLv2 client side session
2326 caching could not have worked due to the session ID mismatch between
2328 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2332 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2333 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2337 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2338 seems that in spite of existing for more than a year, many application
2339 author have done nothing to provide the necessary callbacks, which
2340 means that this particular engine will not work properly anywhere.
2341 This is a very unfortunate situation which forces us, in the name
2342 of usability, to give the hw_ncipher.c a static lock, which is part
2344 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2345 appear in 0.9.8 or later. We EXPECT application authors to have
2346 dealt properly with this when 0.9.8 is released (unless we actually
2347 make such changes in the libcrypto locking code that changes will
2348 have to be made anyway).
2351 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2352 octets have been read, EOF or an error occurs. Without this change
2353 some truncated ASN1 structures will not produce an error.
2356 *) Disable Heimdal support, since it hasn't been fully implemented.
2357 Still give the possibility to force the use of Heimdal, but with
2358 warnings and a request that patches get sent to openssl-dev.
2361 *) Add the VC-CE target, introduce the WINCE sysname, and add
2362 INSTALL.WCE and appropriate conditionals to make it build.
2363 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2365 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2366 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2367 edit numbers of the version.
2368 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2370 *) Introduce safe string copy and catenation functions
2371 (BUF_strlcpy() and BUF_strlcat()).
2372 [Ben Laurie (CHATS) and Richard Levitte]
2374 *) Avoid using fixed-size buffers for one-line DNs.
2375 [Ben Laurie (CHATS)]
2377 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2378 resizing buffers containing secrets, and use where appropriate.
2379 [Ben Laurie (CHATS)]
2381 *) Avoid using fixed size buffers for configuration file location.
2382 [Ben Laurie (CHATS)]
2384 *) Avoid filename truncation for various CA files.
2385 [Ben Laurie (CHATS)]
2387 *) Use sizeof in preference to magic numbers.
2388 [Ben Laurie (CHATS)]
2390 *) Avoid filename truncation in cert requests.
2391 [Ben Laurie (CHATS)]
2393 *) Add assertions to check for (supposedly impossible) buffer
2395 [Ben Laurie (CHATS)]
2397 *) Don't cache truncated DNS entries in the local cache (this could
2398 potentially lead to a spoofing attack).
2399 [Ben Laurie (CHATS)]
2401 *) Fix various buffers to be large enough for hex/decimal
2402 representations in a platform independent manner.
2403 [Ben Laurie (CHATS)]
2405 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2406 resizing buffers containing secrets, and use where appropriate.
2407 [Ben Laurie (CHATS)]
2409 *) Add BIO_indent() to avoid much slightly worrying code to do
2411 [Ben Laurie (CHATS)]
2413 *) Convert sprintf()/BIO_puts() to BIO_printf().
2414 [Ben Laurie (CHATS)]
2416 *) buffer_gets() could terminate with the buffer only half
2418 [Ben Laurie (CHATS)]
2420 *) Add assertions to prevent user-supplied crypto functions from
2421 overflowing internal buffers by having large block sizes, etc.
2422 [Ben Laurie (CHATS)]
2424 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2426 [Ben Laurie (CHATS)]
2428 *) Eliminate unused copy of key in RC4.
2429 [Ben Laurie (CHATS)]
2431 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2432 [Ben Laurie (CHATS)]
2434 *) Fix off-by-one error in EGD path.
2435 [Ben Laurie (CHATS)]
2437 *) If RANDFILE path is too long, ignore instead of truncating.
2438 [Ben Laurie (CHATS)]
2440 *) Eliminate unused and incorrectly sized X.509 structure
2442 [Ben Laurie (CHATS)]
2444 *) Eliminate unused and dangerous function knumber().
2445 [Ben Laurie (CHATS)]
2447 *) Eliminate unused and dangerous structure, KSSL_ERR.
2448 [Ben Laurie (CHATS)]
2450 *) Protect against overlong session ID context length in an encoded
2451 session object. Since these are local, this does not appear to be
2453 [Ben Laurie (CHATS)]
2455 *) Change from security patch (see 0.9.6e below) that did not affect
2456 the 0.9.6 release series:
2458 Remote buffer overflow in SSL3 protocol - an attacker could
2459 supply an oversized master key in Kerberos-enabled versions.
2461 [Ben Laurie (CHATS)]
2463 *) Change the SSL kerb5 codes to match RFC 2712.
2466 *) Make -nameopt work fully for req and add -reqopt switch.
2467 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2469 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2470 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2472 *) Make sure tests can be performed even if the corresponding algorithms
2473 have been removed entirely. This was also the last step to make
2474 OpenSSL compilable with DJGPP under all reasonable conditions.
2475 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2477 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2478 to allow version independent disabling of normally unselected ciphers,
2479 which may be activated as a side-effect of selecting a single cipher.
2481 (E.g., cipher list string "RSA" enables ciphersuites that are left
2482 out of "ALL" because they do not provide symmetric encryption.
2483 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2484 [Lutz Jaenicke, Bodo Moeller]
2486 *) Add appropriate support for separate platform-dependent build
2487 directories. The recommended way to make a platform-dependent
2488 build directory is the following (tested on Linux), maybe with
2491 # Place yourself outside of the OpenSSL source tree. In
2492 # this example, the environment variable OPENSSL_SOURCE
2493 # is assumed to contain the absolute OpenSSL source directory.
2494 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2495 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2496 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2497 mkdir -p `dirname $F`
2498 ln -s $OPENSSL_SOURCE/$F $F
2501 To be absolutely sure not to disturb the source tree, a "make clean"
2502 is a good thing. If it isn't successfull, don't worry about it,
2503 it probably means the source directory is very clean.
2506 *) Make sure any ENGINE control commands make local copies of string
2507 pointers passed to them whenever necessary. Otherwise it is possible
2508 the caller may have overwritten (or deallocated) the original string
2509 data when a later ENGINE operation tries to use the stored values.
2510 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2512 *) Improve diagnostics in file reading and command-line digests.
2513 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2515 *) Add AES modes CFB and OFB to the object database. Correct an
2516 error in AES-CFB decryption.
2519 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2520 allows existing EVP_CIPHER_CTX structures to be reused after
2521 calling EVP_*Final(). This behaviour is used by encryption
2522 BIOs and some applications. This has the side effect that
2523 applications must explicitly clean up cipher contexts with
2524 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2527 *) Check the values of dna and dnb in bn_mul_recursive before calling
2528 bn_mul_comba (a non zero value means the a or b arrays do not contain
2529 n2 elements) and fallback to bn_mul_normal if either is not zero.
2532 *) Fix escaping of non-ASCII characters when using the -subj option
2533 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2536 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2537 form for "surname", serialNumber has no short form.
2538 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2539 therefore remove "mail" short name for "internet 7".
2540 The OID for unique identifiers in X509 certificates is
2541 x500UniqueIdentifier, not uniqueIdentifier.
2542 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2545 *) Add an "init" command to the ENGINE config module and auto initialize
2546 ENGINEs. Without any "init" command the ENGINE will be initialized
2547 after all ctrl commands have been executed on it. If init=1 the
2548 ENGINE is initailized at that point (ctrls before that point are run
2549 on the uninitialized ENGINE and after on the initialized one). If
2550 init=0 then the ENGINE will not be iniatialized at all.
2553 *) Fix the 'app_verify_callback' interface so that the user-defined
2554 argument is actually passed to the callback: In the
2555 SSL_CTX_set_cert_verify_callback() prototype, the callback
2556 declaration has been changed from
2559 int (*cb)(X509_STORE_CTX *,void *);
2560 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2561 i=s->ctx->app_verify_callback(&ctx)
2562 has been changed into
2563 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2565 To update applications using SSL_CTX_set_cert_verify_callback(),
2566 a dummy argument can be added to their callback functions.
2567 [D. K. Smetters <smetters@parc.xerox.com>]
2569 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2570 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2572 *) Add and OPENSSL_LOAD_CONF define which will cause
2573 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2574 This allows older applications to transparently support certain
2575 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2576 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2577 load the config file and OPENSSL_add_all_algorithms_conf() which will
2578 always load it have also been added.
2581 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2582 Adjust NIDs and EVP layer.
2583 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2585 *) Config modules support in openssl utility.
2587 Most commands now load modules from the config file,
2588 though in a few (such as version) this isn't done
2589 because it couldn't be used for anything.
2591 In the case of ca and req the config file used is
2592 the same as the utility itself: that is the -config
2593 command line option can be used to specify an
2597 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2598 use "openssl_conf" if filename is NULL use default openssl config file.
2601 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2602 config section name. Add a new flag to tolerate a missing config file
2603 and move code to CONF_modules_load_file().
2606 *) Support for crypto accelerator cards from Accelerated Encryption
2607 Processing, www.aep.ie. (Use engine 'aep')
2608 The support was copied from 0.9.6c [engine] and adapted/corrected
2609 to work with the new engine framework.
2610 [AEP Inc. and Richard Levitte]
2612 *) Support for SureWare crypto accelerator cards from Baltimore
2613 Technologies. (Use engine 'sureware')
2614 The support was copied from 0.9.6c [engine] and adapted
2615 to work with the new engine framework.
2618 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2619 make the newer ENGINE framework commands for the CHIL engine work.
2620 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2622 *) Make it possible to produce shared libraries on ReliantUNIX.
2623 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2625 *) Add the configuration target debug-linux-ppro.
2626 Make 'openssl rsa' use the general key loading routines
2627 implemented in apps.c, and make those routines able to
2628 handle the key format FORMAT_NETSCAPE and the variant
2630 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2632 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2633 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2635 *) Add -keyform to rsautl, and document -engine.
2636 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2638 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2639 BIO_R_NO_SUCH_FILE error code rather than the generic
2640 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2643 *) Add new functions
2645 ERR_peek_last_error_line
2646 ERR_peek_last_error_line_data.
2647 These are similar to
2650 ERR_peek_error_line_data,
2651 but report on the latest error recorded rather than the first one
2652 still in the error queue.
2653 [Ben Laurie, Bodo Moeller]
2655 *) default_algorithms option in ENGINE config module. This allows things
2657 default_algorithms = ALL
2658 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2661 *) Prelminary ENGINE config module.
2664 *) New experimental application configuration code.
2667 *) Change the AES code to follow the same name structure as all other
2668 symmetric ciphers, and behave the same way. Move everything to
2669 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2670 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2672 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2673 [Ben Laurie and Theo de Raadt]
2675 *) Add option to output public keys in req command.
2676 [Massimiliano Pala madwolf@openca.org]
2678 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2679 (up to about 10% better than before for P-192 and P-224).
2682 *) New functions/macros
2684 SSL_CTX_set_msg_callback(ctx, cb)
2685 SSL_CTX_set_msg_callback_arg(ctx, arg)
2686 SSL_set_msg_callback(ssl, cb)
2687 SSL_set_msg_callback_arg(ssl, arg)
2689 to request calling a callback function
2691 void cb(int write_p, int version, int content_type,
2692 const void *buf, size_t len, SSL *ssl, void *arg)
2694 whenever a protocol message has been completely received
2695 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2696 protocol version according to which the SSL library interprets
2697 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2698 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2699 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2700 specification (change_cipher_spec(20), alert(21), handshake(22)).
2701 'buf' and 'len' point to the actual message, 'ssl' to the
2702 SSL object, and 'arg' is the application-defined value set by
2703 SSL[_CTX]_set_msg_callback_arg().
2705 'openssl s_client' and 'openssl s_server' have new '-msg' options
2706 to enable a callback that displays all protocol messages.
2709 *) Change the shared library support so shared libraries are built as
2710 soon as the corresponding static library is finished, and thereby get
2711 openssl and the test programs linked against the shared library.
2712 This still only happens when the keyword "shard" has been given to
2713 the configuration scripts.
2715 NOTE: shared library support is still an experimental thing, and
2716 backward binary compatibility is still not guaranteed.
2717 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2719 *) Add support for Subject Information Access extension.
2720 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2722 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2723 additional bytes when new memory had to be allocated, not just
2724 when reusing an existing buffer.
2727 *) New command line and configuration option 'utf8' for the req command.
2728 This allows field values to be specified as UTF8 strings.
2731 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2732 runs for the former and machine-readable output for the latter.
2735 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2736 of the e-mail address in the DN (i.e., it will go into a certificate
2737 extension only). The new configuration file option 'email_in_dn = no'
2738 has the same effect.
2739 [Massimiliano Pala madwolf@openca.org]
2741 *) Change all functions with names starting with des_ to be starting
2742 with DES_ instead. Add wrappers that are compatible with libdes,
2743 but are named _ossl_old_des_*. Finally, add macros that map the
2744 des_* symbols to the corresponding _ossl_old_des_* if libdes
2745 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2746 desired, the des_* symbols will be mapped to DES_*, with one
2749 Since we provide two compatibility mappings, the user needs to
2750 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2751 compatibility is desired. The default (i.e., when that macro
2752 isn't defined) is OpenSSL 0.9.6c compatibility.
2754 There are also macros that enable and disable the support of old
2755 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2756 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2757 are defined, the default will apply: to support the old des routines.
2759 In either case, one must include openssl/des.h to get the correct
2760 definitions. Do not try to just include openssl/des_old.h, that
2763 NOTE: This is a major break of an old API into a new one. Software
2764 authors are encouraged to switch to the DES_ style functions. Some
2765 time in the future, des_old.h and the libdes compatibility functions
2766 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2767 default), and then completely removed.
2770 *) Test for certificates which contain unsupported critical extensions.
2771 If such a certificate is found during a verify operation it is
2772 rejected by default: this behaviour can be overridden by either
2773 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2774 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2775 X509_supported_extension() has also been added which returns 1 if a
2776 particular extension is supported.
2779 *) Modify the behaviour of EVP cipher functions in similar way to digests
2780 to retain compatibility with existing code.
2783 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2784 compatibility with existing code. In particular the 'ctx' parameter does
2785 not have to be to be initialized before the call to EVP_DigestInit() and
2786 it is tidied up after a call to EVP_DigestFinal(). New function
2787 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2788 EVP_MD_CTX_copy() changed to not require the destination to be
2789 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2790 requires the destination to be valid.
2792 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2793 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2796 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2797 so that complete 'Handshake' protocol structures are kept in memory
2798 instead of overwriting 'msg_type' and 'length' with 'body' data.
2801 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2802 [Massimo Santin via Richard Levitte]
2804 *) Major restructuring to the underlying ENGINE code. This includes
2805 reduction of linker bloat, separation of pure "ENGINE" manipulation
2806 (initialisation, etc) from functionality dealing with implementations
2807 of specific crypto iterfaces. This change also introduces integrated
2808 support for symmetric ciphers and digest implementations - so ENGINEs
2809 can now accelerate these by providing EVP_CIPHER and EVP_MD
2810 implementations of their own. This is detailed in crypto/engine/README
2811 as it couldn't be adequately described here. However, there are a few
2812 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2813 were changed in the original introduction of ENGINE code have now
2814 reverted back - the hooking from this code to ENGINE is now a good
2815 deal more passive and at run-time, operations deal directly with
2816 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2817 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2818 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2819 they were not being used by the framework as there is no concept of a
2820 BIGNUM_METHOD and they could not be generalised to the new
2821 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2822 ENGINE_cpy() has been removed as it cannot be consistently defined in
2826 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2829 *) Change mkdef.pl to sort symbols that get the same entry number,
2830 and make sure the automatically generated functions ERR_load_*
2831 become part of libeay.num as well.
2834 *) New function SSL_renegotiate_pending(). This returns true once
2835 renegotiation has been requested (either SSL_renegotiate() call
2836 or HelloRequest/ClientHello receveived from the peer) and becomes
2837 false once a handshake has been completed.
2838 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2839 sends a HelloRequest, but does not ensure that a handshake takes
2840 place. SSL_renegotiate_pending() is useful for checking if the
2841 client has followed the request.)
2844 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2845 By default, clients may request session resumption even during
2846 renegotiation (if session ID contexts permit); with this option,
2847 session resumption is possible only in the first handshake.
2849 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2850 more bits available for options that should not be part of
2851 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2854 *) Add some demos for certificate and certificate request creation.
2857 *) Make maximum certificate chain size accepted from the peer application
2858 settable (SSL*_get/set_max_cert_list()), as proposed by
2859 "Douglas E. Engert" <deengert@anl.gov>.
2862 *) Add support for shared libraries for Unixware-7
2863 (Boyd Lynn Gerber <gerberb@zenez.com>).
2866 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2867 be done prior to destruction. Use this to unload error strings from
2868 ENGINEs that load their own error strings. NB: This adds two new API
2869 functions to "get" and "set" this destroy handler in an ENGINE.
2872 *) Alter all existing ENGINE implementations (except "openssl" and
2873 "openbsd") to dynamically instantiate their own error strings. This
2874 makes them more flexible to be built both as statically-linked ENGINEs
2875 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2876 Also, add stub code to each that makes building them as self-contained
2877 shared-libraries easier (see README.ENGINE).
2880 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2881 implementations into applications that are completely implemented in
2882 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2883 commands that can be used to configure what shared-library to load and
2884 to control aspects of the way it is handled. Also, made an update to
2885 the README.ENGINE file that brings its information up-to-date and
2886 provides some information and instructions on the "dynamic" ENGINE
2887 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2890 *) Make it possible to unload ranges of ERR strings with a new
2891 "ERR_unload_strings" function.
2894 *) Add a copy() function to EVP_MD.
2897 *) Make EVP_MD routines take a context pointer instead of just the
2898 md_data void pointer.
2901 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2902 that the digest can only process a single chunk of data
2903 (typically because it is provided by a piece of
2904 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2905 is only going to provide a single chunk of data, and hence the
2906 framework needn't accumulate the data for oneshot drivers.
2909 *) As with "ERR", make it possible to replace the underlying "ex_data"
2910 functions. This change also alters the storage and management of global
2911 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2912 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2913 index counters. The API functions that use this state have been changed
2914 to take a "class_index" rather than pointers to the class's local STACK
2915 and counter, and there is now an API function to dynamically create new
2916 classes. This centralisation allows us to (a) plug a lot of the
2917 thread-safety problems that existed, and (b) makes it possible to clean
2918 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2919 such data would previously have always leaked in application code and
2920 workarounds were in place to make the memory debugging turn a blind eye
2921 to it. Application code that doesn't use this new function will still
2922 leak as before, but their memory debugging output will announce it now
2923 rather than letting it slide.
2925 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2926 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2927 has a return value to indicate success or failure.
2930 *) Make it possible to replace the underlying "ERR" functions such that the
2931 global state (2 LHASH tables and 2 locks) is only used by the "default"
2932 implementation. This change also adds two functions to "get" and "set"
2933 the implementation prior to it being automatically set the first time
2934 any other ERR function takes place. Ie. an application can call "get",
2935 pass the return value to a module it has just loaded, and that module
2936 can call its own "set" function using that value. This means the
2937 module's "ERR" operations will use (and modify) the error state in the
2938 application and not in its own statically linked copy of OpenSSL code.
2941 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2942 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2943 the operation, and provides a more encapsulated way for external code
2944 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2945 to use these functions rather than manually incrementing the counts.
2947 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2950 *) Add EVP test program.
2953 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2956 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2957 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2958 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2959 These allow a CRL to be built without having to access X509_CRL fields
2960 directly. Modify 'ca' application to use new functions.
2963 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2964 bug workarounds. Rollback attack detection is a security feature.
2965 The problem will only arise on OpenSSL servers when TLSv1 is not
2966 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2967 Software authors not wanting to support TLSv1 will have special reasons
2968 for their choice and can explicitly enable this option.
2969 [Bodo Moeller, Lutz Jaenicke]
2971 *) Rationalise EVP so it can be extended: don't include a union of
2972 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2973 (similar to those existing for EVP_CIPHER_CTX).
2978 EVP_MD_CTX_init(&md); /* new function call */
2979 EVP_DigestInit(&md, EVP_sha1());
2980 EVP_DigestUpdate(&md, in, len);
2981 EVP_DigestFinal(&md, out, NULL);
2982 EVP_MD_CTX_cleanup(&md); /* new function call */
2986 *) Make DES key schedule conform to the usual scheme, as well as
2987 correcting its structure. This means that calls to DES functions
2988 now have to pass a pointer to a des_key_schedule instead of a
2989 plain des_key_schedule (which was actually always a pointer
2992 des_key_schedule ks;
2994 des_set_key_checked(..., &ks);
2995 des_ncbc_encrypt(..., &ks, ...);
2997 (Note that a later change renames 'des_...' into 'DES_...'.)
3000 *) Initial reduction of linker bloat: the use of some functions, such as
3001 PEM causes large amounts of unused functions to be linked in due to
3002 poor organisation. For example pem_all.c contains every PEM function
3003 which has a knock on effect of linking in large amounts of (unused)
3004 ASN1 code. Grouping together similar functions and splitting unrelated
3005 functions prevents this.
3008 *) Cleanup of EVP macros.
3011 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3012 correct _ecb suffix.
3015 *) Add initial OCSP responder support to ocsp application. The
3016 revocation information is handled using the text based index
3017 use by the ca application. The responder can either handle
3018 requests generated internally, supplied in files (for example
3019 via a CGI script) or using an internal minimal server.
3022 *) Add configuration choices to get zlib compression for TLS.
3025 *) Changes to Kerberos SSL for RFC 2712 compliance:
3026 1. Implemented real KerberosWrapper, instead of just using
3027 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3028 2. Implemented optional authenticator field of KerberosWrapper.
3030 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3031 and authenticator structs; see crypto/krb5/.
3033 Generalized Kerberos calls to support multiple Kerberos libraries.
3034 [Vern Staats <staatsvr@asc.hpc.mil>,
3035 Jeffrey Altman <jaltman@columbia.edu>
3036 via Richard Levitte]
3038 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3039 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3040 values for each of the key sizes rather than having just
3041 parameters (and 'speed' generating keys each time).
3044 *) Speed up EVP routines.
3047 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3048 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3049 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3050 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3052 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3053 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3054 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3057 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3059 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3062 *) Added the OS2-EMX target.
3063 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3065 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3066 to support NCONF routines in extension code. New function CONF_set_nconf()
3067 to allow functions which take an NCONF to also handle the old LHASH
3068 structure: this means that the old CONF compatible routines can be
3069 retained (in particular wrt extensions) without having to duplicate the
3070 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3073 *) Enhance the general user interface with mechanisms for inner control
3074 and with possibilities to have yes/no kind of prompts.
3077 *) Change all calls to low level digest routines in the library and
3078 applications to use EVP. Add missing calls to HMAC_cleanup() and
3079 don't assume HMAC_CTX can be copied using memcpy().
3080 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3082 *) Add the possibility to control engines through control names but with
3083 arbitrary arguments instead of just a string.
3084 Change the key loaders to take a UI_METHOD instead of a callback
3085 function pointer. NOTE: this breaks binary compatibility with earlier
3086 versions of OpenSSL [engine].
3087 Adapt the nCipher code for these new conditions and add a card insertion
3091 *) Enhance the general user interface with mechanisms to better support
3092 dialog box interfaces, application-defined prompts, the possibility
3093 to use defaults (for example default passwords from somewhere else)
3094 and interrupts/cancellations.
3097 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3098 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3101 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3102 tidy up some unnecessarily weird code in 'sk_new()').
3103 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3105 *) Change the key loading routines for ENGINEs to use the same kind
3106 callback (pem_password_cb) as all other routines that need this
3110 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3111 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3112 than this minimum value is recommended.
3115 *) New random seeder for OpenVMS, using the system process statistics
3116 that are easily reachable.
3119 *) Windows apparently can't transparently handle global
3120 variables defined in DLLs. Initialisations such as:
3122 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3124 wont compile. This is used by the any applications that need to
3125 declare their own ASN1 modules. This was fixed by adding the option
3126 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3127 needed for static libraries under Win32.
3130 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3131 setting of purpose and trust fields. New X509_STORE trust and
3132 purpose functions and tidy up setting in other SSL functions.
3135 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3136 structure. These are inherited by X509_STORE_CTX when it is
3137 initialised. This allows various defaults to be set in the
3138 X509_STORE structure (such as flags for CRL checking and custom
3139 purpose or trust settings) for functions which only use X509_STORE_CTX
3140 internally such as S/MIME.
3142 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3143 trust settings if they are not set in X509_STORE. This allows X509_STORE
3144 purposes and trust (in S/MIME for example) to override any set by default.
3146 Add command line options for CRL checking to smime, s_client and s_server
3150 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3151 are set then the CRL is looked up in the X509_STORE structure and
3152 its validity and signature checked, then if the certificate is found
3153 in the CRL the verify fails with a revoked error.
3155 Various new CRL related callbacks added to X509_STORE_CTX structure.
3157 Command line options added to 'verify' application to support this.
3159 This needs some additional work, such as being able to handle multiple
3160 CRLs with different times, extension based lookup (rather than just
3161 by subject name) and ultimately more complete V2 CRL extension
3165 *) Add a general user interface API (crypto/ui/). This is designed
3166 to replace things like des_read_password and friends (backward
3167 compatibility functions using this new API are provided).
3168 The purpose is to remove prompting functions from the DES code
3169 section as well as provide for prompting through dialog boxes in
3170 a window system and the like.
3173 *) Add "ex_data" support to ENGINE so implementations can add state at a
3174 per-structure level rather than having to store it globally.
3177 *) Make it possible for ENGINE structures to be copied when retrieved by
3178 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3179 This causes the "original" ENGINE structure to act like a template,
3180 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3181 operational state can be localised to each ENGINE structure, despite the
3182 fact they all share the same "methods". New ENGINE structures returned in
3183 this case have no functional references and the return value is the single
3184 structural reference. This matches the single structural reference returned
3185 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3189 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3190 needs to match any other type at all we need to manually clear the
3194 *) Changes to the "openssl engine" utility to include;
3195 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3196 about an ENGINE's available control commands.
3197 - executing control commands from command line arguments using the
3198 '-pre' and '-post' switches. '-post' is only used if '-t' is
3199 specified and the ENGINE is successfully initialised. The syntax for
3200 the individual commands are colon-separated, for example;
3201 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3204 *) New dynamic control command support for ENGINEs. ENGINEs can now
3205 declare their own commands (numbers), names (strings), descriptions,
3206 and input types for run-time discovery by calling applications. A
3207 subset of these commands are implicitly classed as "executable"
3208 depending on their input type, and only these can be invoked through
3209 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3210 can be based on user input, config files, etc). The distinction is
3211 that "executable" commands cannot return anything other than a boolean
3212 result and can only support numeric or string input, whereas some
3213 discoverable commands may only be for direct use through
3214 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3215 pointers, or other custom uses. The "executable" commands are to
3216 support parameterisations of ENGINE behaviour that can be
3217 unambiguously defined by ENGINEs and used consistently across any
3218 OpenSSL-based application. Commands have been added to all the
3219 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3220 control over shared-library paths without source code alterations.
3223 *) Changed all ENGINE implementations to dynamically allocate their
3224 ENGINEs rather than declaring them statically. Apart from this being
3225 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3226 this also allows the implementations to compile without using the
3227 internal engine_int.h header.
3230 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3231 'const' value. Any code that should be able to modify a RAND_METHOD
3232 should already have non-const pointers to it (ie. they should only
3233 modify their own ones).
3236 *) Made a variety of little tweaks to the ENGINE code.
3237 - "atalla" and "ubsec" string definitions were moved from header files
3238 to C code. "nuron" string definitions were placed in variables
3239 rather than hard-coded - allowing parameterisation of these values
3240 later on via ctrl() commands.
3241 - Removed unused "#if 0"'d code.
3242 - Fixed engine list iteration code so it uses ENGINE_free() to release
3243 structural references.
3244 - Constified the RAND_METHOD element of ENGINE structures.
3245 - Constified various get/set functions as appropriate and added
3246 missing functions (including a catch-all ENGINE_cpy that duplicates
3247 all ENGINE values onto a new ENGINE except reference counts/state).
3248 - Removed NULL parameter checks in get/set functions. Setting a method
3249 or function to NULL is a way of cancelling out a previously set
3250 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3251 and doesn't justify the extra error symbols and code.
3252 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3253 flags from engine_int.h to engine.h.
3254 - Changed prototypes for ENGINE handler functions (init(), finish(),
3255 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3258 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3259 to the algorithm using long division. The binary algorithm can be
3260 used only if the modulus is odd. On 32-bit systems, it is faster
3261 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3262 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3263 up to 450 bits. In 64-bit environments, the binary algorithm
3264 appears to be advantageous for much longer moduli; here we use it
3265 for moduli up to 2048 bits.
3268 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3269 could not support the combine flag in choice fields.
3272 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3273 extensions from a certificate request to the certificate.
3276 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3277 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3278 file: this allows the display of the certificate about to be
3279 signed to be customised, to allow certain fields to be included
3280 or excluded and extension details. The old system didn't display
3281 multicharacter strings properly, omitted fields not in the policy
3282 and couldn't display additional details such as extensions.
3285 *) Function EC_POINTs_mul for multiple scalar multiplication
3286 of an arbitrary number of elliptic curve points
3287 \sum scalars[i]*points[i],
3288 optionally including the generator defined for the EC_GROUP:
3289 scalar*generator + \sum scalars[i]*points[i].
3291 EC_POINT_mul is a simple wrapper function for the typical case
3292 that the point list has just one item (besides the optional
3296 *) First EC_METHODs for curves over GF(p):
3298 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3299 operations and provides various method functions that can also
3300 operate with faster implementations of modular arithmetic.
3302 EC_GFp_mont_method() reuses most functions that are part of
3303 EC_GFp_simple_method, but uses Montgomery arithmetic.
3305 [Bodo Moeller; point addition and point doubling
3306 implementation directly derived from source code provided by
3307 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3309 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3310 crypto/ec/ec_lib.c):
3312 Curves are EC_GROUP objects (with an optional group generator)
3313 based on EC_METHODs that are built into the library.
3315 Points are EC_POINT objects based on EC_GROUP objects.
3317 Most of the framework would be able to handle curves over arbitrary
3318 finite fields, but as there are no obvious types for fields other
3319 than GF(p), some functions are limited to that for now.
3322 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3323 that the file contains a complete HTTP response.
3326 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3327 change the def and num file printf format specifier from "%-40sXXX"
3328 to "%-39s XXX". The latter will always guarantee a space after the
3329 field while the former will cause them to run together if the field
3330 is 40 of more characters long.
3333 *) Constify the cipher and digest 'method' functions and structures
3334 and modify related functions to take constant EVP_MD and EVP_CIPHER
3338 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3339 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3342 *) Modify EVP_Digest*() routines so they now return values. Although the
3343 internal software routines can never fail additional hardware versions
3347 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3349 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3350 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3353 ERR_R_NESTED_ASN1_ERROR
3355 ERR_R_MISSING_ASN1_EOS
3356 were 4 .. 9, conflicting with
3357 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3359 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3360 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3362 Add new error code 'ERR_R_INTERNAL_ERROR'.
3365 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3369 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3370 sets the subject name for a new request or supersedes the
3371 subject name in a given request. Formats that can be parsed are
3372 'CN=Some Name, OU=myOU, C=IT'
3374 'CN=Some Name/OU=myOU/C=IT'.
3376 Add options '-batch' and '-verbose' to 'openssl req'.
3377 [Massimiliano Pala <madwolf@hackmasters.net>]
3379 *) Introduce the possibility to access global variables through
3380 functions on platform were that's the best way to handle exporting
3381 global variables in shared libraries. To enable this functionality,
3382 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3383 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3384 is normally done by Configure or something similar).
3386 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3387 in the source file (foo.c) like this:
3389 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3390 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3392 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3393 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3395 OPENSSL_DECLARE_GLOBAL(int,foo);
3396 #define foo OPENSSL_GLOBAL_REF(foo)
3397 OPENSSL_DECLARE_GLOBAL(double,bar);
3398 #define bar OPENSSL_GLOBAL_REF(bar)
3400 The #defines are very important, and therefore so is including the
3401 header file everywhere where the defined globals are used.
3403 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3404 of ASN.1 items, but that structure is a bit different.
3406 The largest change is in util/mkdef.pl which has been enhanced with
3407 better and easier to understand logic to choose which symbols should
3408 go into the Windows .def files as well as a number of fixes and code
3409 cleanup (among others, algorithm keywords are now sorted
3410 lexicographically to avoid constant rewrites).
3413 *) In BN_div() keep a copy of the sign of 'num' before writing the
3414 result to 'rm' because if rm==num the value will be overwritten
3415 and produce the wrong result if 'num' is negative: this caused
3416 problems with BN_mod() and BN_nnmod().
3419 *) Function OCSP_request_verify(). This checks the signature on an
3420 OCSP request and verifies the signer certificate. The signer
3421 certificate is just checked for a generic purpose and OCSP request
3425 *) Add OCSP_check_validity() function to check the validity of OCSP
3426 responses. OCSP responses are prepared in real time and may only
3427 be a few seconds old. Simply checking that the current time lies
3428 between thisUpdate and nextUpdate max reject otherwise valid responses
3429 caused by either OCSP responder or client clock inaccuracy. Instead
3430 we allow thisUpdate and nextUpdate to fall within a certain period of
3431 the current time. The age of the response can also optionally be
3432 checked. Two new options -validity_period and -status_age added to
3436 *) If signature or public key algorithm is unrecognized print out its
3437 OID rather that just UNKNOWN.
3440 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3441 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3442 ID to be generated from the issuer certificate alone which can then be
3443 passed to OCSP_id_issuer_cmp().
3446 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3447 ASN1 modules to export functions returning ASN1_ITEM pointers
3448 instead of the ASN1_ITEM structures themselves. This adds several
3449 new macros which allow the underlying ASN1 function/structure to
3450 be accessed transparently. As a result code should not use ASN1_ITEM
3451 references directly (such as &X509_it) but instead use the relevant
3452 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3453 use of the new ASN1 code on platforms where exporting structures
3454 is problematical (for example in shared libraries) but exporting
3455 functions returning pointers to structures is not.
3458 *) Add support for overriding the generation of SSL/TLS session IDs.
3459 These callbacks can be registered either in an SSL_CTX or per SSL.
3460 The purpose of this is to allow applications to control, if they wish,
3461 the arbitrary values chosen for use as session IDs, particularly as it
3462 can be useful for session caching in multiple-server environments. A
3463 command-line switch for testing this (and any client code that wishes
3464 to use such a feature) has been added to "s_server".
3465 [Geoff Thorpe, Lutz Jaenicke]
3467 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3468 of the form '#if defined(...) || defined(...) || ...' and
3469 '#if !defined(...) && !defined(...) && ...'. This also avoids
3470 the growing number of special cases it was previously handling.
3473 *) Make all configuration macros available for application by making
3474 sure they are available in opensslconf.h, by giving them names starting
3475 with "OPENSSL_" to avoid conflicts with other packages and by making
3476 sure e_os2.h will cover all platform-specific cases together with
3478 Additionally, it is now possible to define configuration/platform-
3479 specific names (called "system identities"). In the C code, these
3480 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3481 macro with the name beginning with "OPENSSL_SYS_", which is determined
3482 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3486 *) New option -set_serial to 'req' and 'x509' this allows the serial
3487 number to use to be specified on the command line. Previously self
3488 signed certificates were hard coded with serial number 0 and the
3489 CA options of 'x509' had to use a serial number in a file which was
3493 *) New options to 'ca' utility to support V2 CRL entry extensions.
3494 Currently CRL reason, invalidity date and hold instruction are
3495 supported. Add new CRL extensions to V3 code and some new objects.
3498 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3499 disable standard block padding (aka PKCS#5 padding) in the EVP
3500 API, which was previously mandatory. This means that the data is
3501 not padded in any way and so the total length much be a multiple
3502 of the block size, otherwise an error occurs.
3505 *) Initial (incomplete) OCSP SSL support.
3508 *) New function OCSP_parse_url(). This splits up a URL into its host,
3509 port and path components: primarily to parse OCSP URLs. New -url
3510 option to ocsp utility.
3513 *) New nonce behavior. The return value of OCSP_check_nonce() now
3514 reflects the various checks performed. Applications can decide
3515 whether to tolerate certain situations such as an absent nonce
3516 in a response when one was present in a request: the ocsp application
3517 just prints out a warning. New function OCSP_add1_basic_nonce()
3518 this is to allow responders to include a nonce in a response even if
3519 the request is nonce-less.
3522 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3523 skipped when using openssl x509 multiple times on a single input file,
3524 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3527 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3528 set string type: to handle setting ASN1_TIME structures. Fix ca
3529 utility to correctly initialize revocation date of CRLs.
3532 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3533 the clients preferred ciphersuites and rather use its own preferences.
3534 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3535 Internet Explorer by ensuring unchanged hash method during stepup.
3536 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3539 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3540 to aes and add a new 'exist' option to print out symbols that don't
3544 *) Additional options to ocsp utility to allow flags to be set and
3545 additional certificates supplied.
3548 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3549 OCSP client a number of certificate to only verify the response
3553 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3554 handle the new API. Currently only ECB, CBC modes supported. Add new
3557 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3558 Encryption Standard (AES) Ciphersuites for Transport Layer
3559 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3560 not enabled by default and were not part of the "ALL" ciphersuite
3561 alias because they were not yet official; they could be
3562 explicitly requested by specifying the "AESdraft" ciphersuite
3563 group alias. In the final release of OpenSSL 0.9.7, the group
3564 alias is called "AES" and is part of "ALL".)
3565 [Ben Laurie, Steve Henson, Bodo Moeller]
3567 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3568 request to response.
3571 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3572 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3573 extract information from a certificate request. OCSP_response_create()
3574 creates a response and optionally adds a basic response structure.
3575 OCSP_basic_add1_status() adds a complete single response to a basic
3576 response and returns the OCSP_SINGLERESP structure just added (to allow
3577 extensions to be included for example). OCSP_basic_add1_cert() adds a
3578 certificate to a basic response and OCSP_basic_sign() signs a basic
3579 response with various flags. New helper functions ASN1_TIME_check()
3580 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3581 (converts ASN1_TIME to GeneralizedTime).
3584 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3585 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3586 structure from a certificate. X509_pubkey_digest() digests the public_key
3587 contents: this is used in various key identifiers.
3590 *) Make sk_sort() tolerate a NULL argument.
3591 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3593 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3594 passed by the function are trusted implicitly. If any of them signed the
3595 response then it is assumed to be valid and is not verified.
3598 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3599 to data. This was previously part of the PKCS7 ASN1 code. This
3600 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3601 [Steve Henson, reported by Kenneth R. Robinette
3602 <support@securenetterm.com>]
3604 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3605 routines: without these tracing memory leaks is very painful.
3606 Fix leaks in PKCS12 and PKCS7 routines.
3609 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3610 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3611 effectively meant GeneralizedTime would never be used. Now it
3612 is initialised to -1 but X509_time_adj() now has to check the value
3613 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3614 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3615 [Steve Henson, reported by Kenneth R. Robinette
3616 <support@securenetterm.com>]
3618 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3619 result in a zero length in the ASN1_INTEGER structure which was
3620 not consistent with the structure when d2i_ASN1_INTEGER() was used
3621 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3622 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3623 where it did not print out a minus for negative ASN1_INTEGER.
3626 *) Add summary printout to ocsp utility. The various functions which
3627 convert status values to strings have been renamed to:
3628 OCSP_response_status_str(), OCSP_cert_status_str() and
3629 OCSP_crl_reason_str() and are no longer static. New options
3630 to verify nonce values and to disable verification. OCSP response
3631 printout format cleaned up.
3634 *) Add additional OCSP certificate checks. These are those specified
3635 in RFC2560. This consists of two separate checks: the CA of the
3636 certificate being checked must either be the OCSP signer certificate
3637 or the issuer of the OCSP signer certificate. In the latter case the
3638 OCSP signer certificate must contain the OCSP signing extended key
3639 usage. This check is performed by attempting to match the OCSP
3640 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3641 in the OCSP_CERTID structures of the response.
3644 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3645 and related routines. This uses the standard OpenSSL certificate
3646 verify routines to perform initial checks (just CA validity) and
3647 to obtain the certificate chain. Then additional checks will be
3648 performed on the chain. Currently the root CA is checked to see
3649 if it is explicitly trusted for OCSP signing. This is used to set
3650 a root CA as a global signing root: that is any certificate that
3651 chains to that CA is an acceptable OCSP signing certificate.
3654 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3655 extensions from a separate configuration file.
3656 As when reading extensions from the main configuration file,
3657 the '-extensions ...' option may be used for specifying the
3659 [Massimiliano Pala <madwolf@comune.modena.it>]
3661 *) New OCSP utility. Allows OCSP requests to be generated or
3662 read. The request can be sent to a responder and the output
3663 parsed, outputed or printed in text form. Not complete yet:
3664 still needs to check the OCSP response validity.
3667 *) New subcommands for 'openssl ca':
3668 'openssl ca -status <serial>' prints the status of the cert with
3669 the given serial number (according to the index file).
3670 'openssl ca -updatedb' updates the expiry status of certificates
3672 [Massimiliano Pala <madwolf@comune.modena.it>]
projects / openssl.git / blob