5 Changes between 0.9.8k and 0.9.9 [xx XXX xxxx]
7 *) Update Gost ENGINE to support parameter files.
8 [Victor B. Wagner <vitus@cryptocom.ru>]
10 *) Support GeneralizedTime in ca utility.
11 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
13 *) Enhance the hash format used for certificate directory links. The new
14 form uses the canonical encoding (meaning equivalent names will work
15 even if they aren't identical) and uses SHA1 instead of MD5. This form
16 is incompatible with the older format and as a result c_rehash should
17 be used to rebuild symbolic links.
20 *) Make PKCS#8 the default write format for private keys, replacing the
21 traditional format. This form is standardised, more secure and doesn't
22 include an implicit MD5 dependency.
25 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
26 committed to OpenSSL should pass this lot as a minimum.
29 *) Add session ticket override functionality for use by EAP-FAST.
30 [Jouni Malinen <j@w1.fi>]
32 *) Modify HMAC functions to return a value. Since these can be implemented
33 in an ENGINE errors can occur.
36 *) Type-checked OBJ_bsearch_ex.
39 *) Type-checked OBJ_bsearch. Also some constification necessitated
40 by type-checking. Still to come: TXT_DB, bsearch(?),
41 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
45 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
46 seconds to a tm structure directly, instead of going through OS
47 specific date routines. This avoids any issues with OS routines such
48 as the year 2038 bug. New *_adj() functions for ASN1 time structures
49 and X509_time_adj_ex() to cover the extended range. The existing
50 X509_time_adj() is still usable and will no longer have any date issues.
53 *) Delta CRL support. New use deltas option which will attempt to locate
54 and search any appropriate delta CRLs available.
56 This work was sponsored by Google.
59 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
60 code and add additional score elements. Validate alternate CRL paths
61 as part of the CRL checking and indicate a new error "CRL path validation
62 error" in this case. Applications wanting additional details can use
63 the verify callback and check the new "parent" field. If this is not
64 NULL CRL path validation is taking place. Existing applications wont
65 see this because it requires extended CRL support which is off by
68 This work was sponsored by Google.
71 *) Support for freshest CRL extension.
73 This work was sponsored by Google.
76 *) Initial indirect CRL support. Currently only supported in the CRLs
77 passed directly and not via lookup. Process certificate issuer
78 CRL entry extension and lookup CRL entries by bother issuer name
79 and serial number. Check and process CRL issuer entry in IDP extension.
81 This work was sponsored by Google.
84 *) Add support for distinct certificate and CRL paths. The CRL issuer
85 certificate is validated separately in this case. Only enabled if
86 an extended CRL support flag is set: this flag will enable additional
87 CRL functionality in future.
89 This work was sponsored by Google.
92 *) Add support for policy mappings extension.
94 This work was sponsored by Google.
97 *) Fixes to pathlength constraint, self issued certificate handling,
98 policy processing to align with RFC3280 and PKITS tests.
100 This work was sponsored by Google.
103 *) Support for name constraints certificate extension. DN, email, DNS
104 and URI types are currently supported.
106 This work was sponsored by Google.
109 *) To cater for systems that provide a pointer-based thread ID rather
110 than numeric, deprecate the current numeric thread ID mechanism and
111 replace it with a structure and associated callback type. This
112 mechanism allows a numeric "hash" to be extracted from a thread ID in
113 either case, and on platforms where pointers are larger than 'long',
114 mixing is done to help ensure the numeric 'hash' is usable even if it
115 can't be guaranteed unique. The default mechanism is to use "&errno"
116 as a pointer-based thread ID to distinguish between threads.
118 Applications that want to provide their own thread IDs should now use
119 CRYPTO_THREADID_set_callback() to register a callback that will call
120 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
122 Note that ERR_remove_state() is now deprecated, because it is tied
123 to the assumption that thread IDs are numeric. ERR_remove_state(0)
124 to free the current thread's error state should be replaced by
125 ERR_remove_thread_state(NULL).
127 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
128 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
129 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
130 application was previously providing a numeric thread callback that
131 was inappropriate for distinguishing threads, then uniqueness might
132 have been obtained with &errno that happened immediately in the
133 intermediate development versions of OpenSSL; this is no longer the
134 case, the numeric thread callback will now override the automatic use
136 [Geoff Thorpe, with help from Bodo Moeller]
138 *) Initial support for different CRL issuing certificates. This covers a
139 simple case where the self issued certificates in the chain exist and
140 the real CRL issuer is higher in the existing chain.
142 This work was sponsored by Google.
145 *) Removed effectively defunct crypto/store from the build.
148 *) Revamp of STACK to provide stronger type-checking. Still to come:
149 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
150 ASN1_STRING, CONF_VALUE.
153 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
154 RAM on SSL connections. This option can save about 34k per idle SSL.
157 *) Revamp of LHASH to provide stronger type-checking. Still to come:
158 STACK, TXT_DB, bsearch, qsort.
161 *) Initial support for Cryptographic Message Syntax (aka CMS) based
162 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
163 support for data, signedData, compressedData, digestedData and
164 encryptedData, envelopedData types included. Scripts to check against
165 RFC4134 examples draft and interop and consistency checks of many
166 content types and variants.
169 *) Add options to enc utility to support use of zlib compression BIO.
172 *) Extend mk1mf to support importing of options and assembly language
173 files from Configure script, currently only included in VC-WIN32.
174 The assembly language rules can now optionally generate the source
175 files from the associated perl scripts.
178 *) Implement remaining functionality needed to support GOST ciphersuites.
179 Interop testing has been performed using CryptoPro implementations.
180 [Victor B. Wagner <vitus@cryptocom.ru>]
182 *) s390x assembler pack.
185 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
189 *) Implement Opaque PRF Input TLS extension as specified in
190 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
191 official specification yet and no extension type assignment by
192 IANA exists, this extension (for now) will have to be explicitly
193 enabled when building OpenSSL by providing the extension number
194 to use. For example, specify an option
196 -DTLSEXT_TYPE_opaque_prf_input=0x9527
198 to the "config" or "Configure" script to enable the extension,
199 assuming extension number 0x9527 (which is a completely arbitrary
200 and unofficial assignment based on the MD5 hash of the Internet
201 Draft). Note that by doing so, you potentially lose
202 interoperability with other TLS implementations since these might
203 be using the same extension number for other purposes.
205 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
206 opaque PRF input value to use in the handshake. This will create
207 an interal copy of the length-'len' string at 'src', and will
208 return non-zero for success.
210 To get more control and flexibility, provide a callback function
213 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
214 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
218 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
221 Callback function 'cb' will be called in handshakes, and is
222 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
223 Argument 'arg' is for application purposes (the value as given to
224 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
225 be provided to the callback function). The callback function
226 has to return non-zero to report success: usually 1 to use opaque
227 PRF input just if possible, or 2 to enforce use of the opaque PRF
228 input. In the latter case, the library will abort the handshake
229 if opaque PRF input is not successfully negotiated.
231 Arguments 'peerinput' and 'len' given to the callback function
232 will always be NULL and 0 in the case of a client. A server will
233 see the client's opaque PRF input through these variables if
234 available (NULL and 0 otherwise). Note that if the server
235 provides an opaque PRF input, the length must be the same as the
236 length of the client's opaque PRF input.
238 Note that the callback function will only be called when creating
239 a new session (session resumption can resume whatever was
240 previously negotiated), and will not be called in SSL 2.0
241 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
242 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
243 for applications that need to enforce opaque PRF input.
247 *) Update ssl code to support digests other than SHA1+MD5 for handshake
250 [Victor B. Wagner <vitus@cryptocom.ru>]
252 *) Add RFC4507 support to OpenSSL. This includes the corrections in
253 RFC4507bis. The encrypted ticket format is an encrypted encoded
254 SSL_SESSION structure, that way new session features are automatically
257 If a client application caches session in an SSL_SESSION structure
258 support is transparent because tickets are now stored in the encoded
261 The SSL_CTX structure automatically generates keys for ticket
262 protection in servers so again support should be possible
263 with no application modification.
265 If a client or server wishes to disable RFC4507 support then the option
266 SSL_OP_NO_TICKET can be set.
268 Add a TLS extension debugging callback to allow the contents of any client
269 or server extensions to be examined.
271 This work was sponsored by Google.
274 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
275 OpenSSL should now compile cleanly on gcc 4.2
276 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
278 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
279 support including streaming MAC support: this is required for GOST
281 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
283 *) Add option -stream to use PKCS#7 streaming in smime utility. New
284 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
285 to output in BER and PEM format.
288 *) Experimental support for use of HMAC via EVP_PKEY interface. This
289 allows HMAC to be handled via the EVP_DigestSign*() interface. The
290 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
291 ENGINE support for HMAC keys which are unextractable. New -mac and
292 -macopt options to dgst utility.
295 *) New option -sigopt to dgst utility. Update dgst to use
296 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
297 alternative signing paramaters such as X9.31 or PSS in the dgst
301 *) Change ssl_cipher_apply_rule(), the internal function that does
302 the work each time a ciphersuite string requests enabling
303 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
304 removing ("!foo+bar") a class of ciphersuites: Now it maintains
305 the order of disabled ciphersuites such that those ciphersuites
306 that most recently went from enabled to disabled not only stay
307 in order with respect to each other, but also have higher priority
308 than other disabled ciphersuites the next time ciphersuites are
311 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
312 the same ciphersuites as with "HIGH" alone, but in a specific
313 order where the PSK ciphersuites come first (since they are the
314 most recently disabled ciphersuites when "HIGH" is parsed).
316 Also, change ssl_create_cipher_list() (using this new
317 funcionality) such that between otherwise identical
318 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
322 *) Change ssl_create_cipher_list() so that it automatically
323 arranges the ciphersuites in reasonable order before starting
324 to process the rule string. Thus, the definition for "DEFAULT"
325 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
326 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
327 This makes it much easier to arrive at a reasonable default order
328 in applications for which anonymous ciphers are OK (meaning
329 that you can't actually use DEFAULT).
330 [Bodo Moeller; suggested by Victor Duchovni]
332 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
333 processing) into multiple integers instead of setting
334 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
335 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
336 (These masks as well as the individual bit definitions are hidden
337 away into the non-exported interface ssl/ssl_locl.h, so this
338 change to the definition of the SSL_CIPHER structure shouldn't
339 affect applications.) This give us more bits for each of these
340 categories, so there is no longer a need to coagulate AES128 and
341 AES256 into a single algorithm bit, and to coagulate Camellia128
342 and Camellia256 into a single algorithm bit, which has led to all
345 Thus, among other things, the kludge introduced in 0.9.7m and
346 0.9.8e for masking out AES256 independently of AES128 or masking
347 out Camellia256 independently of AES256 is not needed here in 0.9.9.
349 With the change, we also introduce new ciphersuite aliases that
350 so far were missing: "AES128", "AES256", "CAMELLIA128", and
354 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
355 Use the leftmost N bytes of the signature input if the input is
356 larger than the prime q (with N being the size in bytes of q).
359 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
360 it yet and it is largely untested.
363 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
366 *) Initial incomplete changes to avoid need for function casts in OpenSSL
367 some compilers (gcc 4.2 and later) reject their use. Safestack is
368 reimplemented. Update ASN1 to avoid use of legacy functions.
371 *) Win32/64 targets are linked with Winsock2.
374 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
375 to external functions. This can be used to increase CRL handling
376 efficiency especially when CRLs are very large by (for example) storing
377 the CRL revoked certificates in a database.
380 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
381 new CRLs added to a directory can be used. New command line option
382 -verify_return_error to s_client and s_server. This causes real errors
383 to be returned by the verify callback instead of carrying on no matter
384 what. This reflects the way a "real world" verify callback would behave.
387 *) GOST engine, supporting several GOST algorithms and public key formats.
388 Kindly donated by Cryptocom.
391 *) Partial support for Issuing Distribution Point CRL extension. CRLs
392 partitioned by DP are handled but no indirect CRL or reason partitioning
393 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
394 selected via a scoring technique which handles IDP and AKID in CRLs.
397 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
398 will ultimately be used for all verify operations: this will remove the
399 X509_STORE dependency on certificate verification and allow alternative
400 lookup methods. X509_STORE based implementations of these two callbacks.
403 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
404 Modify get_crl() to find a valid (unexpired) CRL if possible.
407 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
408 this would be called X509_CRL_cmp() but that name is already used by
409 a function that just compares CRL issuer names. Cache several CRL
410 extensions in X509_CRL structure and cache CRLDP in X509.
413 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
414 this maps equivalent X509_NAME structures into a consistent structure.
415 Name comparison can then be performed rapidly using memcmp().
418 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
422 *) Allow digests to supply their own micalg string for S/MIME type using
423 the ctrl EVP_MD_CTRL_MICALG.
426 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
427 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
428 ctrl. It can then customise the structure before and/or after signing
432 *) New function OBJ_add_sigid() to allow application defined signature OIDs
433 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
434 to free up any added signature OIDs.
437 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
438 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
439 digest and cipher tables. New options added to openssl utility:
440 list-message-digest-algorithms and list-cipher-algorithms.
443 *) Change the array representation of binary polynomials: the list
444 of degrees of non-zero coefficients is now terminated with -1.
445 Previously it was terminated with 0, which was also part of the
446 value; thus, the array representation was not applicable to
447 polynomials where t^0 has coefficient zero. This change makes
448 the array representation useful in a more general context.
451 *) Various modifications and fixes to SSL/TLS cipher string
452 handling. For ECC, the code now distinguishes between fixed ECDH
453 with RSA certificates on the one hand and with ECDSA certificates
454 on the other hand, since these are separate ciphersuites. The
455 unused code for Fortezza ciphersuites has been removed.
457 For consistency with EDH, ephemeral ECDH is now called "EECDH"
458 (not "ECDHE"). For consistency with the code for DH
459 certificates, use of ECDH certificates is now considered ECDH
460 authentication, not RSA or ECDSA authentication (the latter is
461 merely the CA's signing algorithm and not actively used in the
464 The temporary ciphersuite alias "ECCdraft" is no longer
465 available, and ECC ciphersuites are no longer excluded from "ALL"
466 and "DEFAULT". The following aliases now exist for RFC 4492
467 ciphersuites, most of these by analogy with the DH case:
469 kECDHr - ECDH cert, signed with RSA
470 kECDHe - ECDH cert, signed with ECDSA
471 kECDH - ECDH cert (signed with either RSA or ECDSA)
472 kEECDH - ephemeral ECDH
473 ECDH - ECDH cert or ephemeral ECDH
479 AECDH - anonymous ECDH
480 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
484 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
485 Use correct micalg parameters depending on digest(s) in signed message.
488 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
489 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
492 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
493 an engine to register a method. Add ENGINE lookups for methods and
494 functional reference processing.
497 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
498 EVP_{Sign,Verify}* which allow an application to customise the signature
502 *) New -resign option to smime utility. This adds one or more signers
503 to an existing PKCS#7 signedData structure. Also -md option to use an
504 alternative message digest algorithm for signing.
507 *) Tidy up PKCS#7 routines and add new functions to make it easier to
508 create PKCS7 structures containing multiple signers. Update smime
509 application to support multiple signers.
512 *) New -macalg option to pkcs12 utility to allow setting of an alternative
516 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
517 Reorganize PBE internals to lookup from a static table using NIDs,
518 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
519 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
520 PRF which will be automatically used with PBES2.
523 *) Replace the algorithm specific calls to generate keys in "req" with the
527 *) Update PKCS#7 enveloped data routines to use new API. This is now
528 supported by any public key method supporting the encrypt operation. A
529 ctrl is added to allow the public key algorithm to examine or modify
530 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
534 *) Add a ctrl to asn1 method to allow a public key algorithm to express
535 a default digest type to use. In most cases this will be SHA1 but some
536 algorithms (such as GOST) need to specify an alternative digest. The
537 return value indicates how strong the prefernce is 1 means optional and
538 2 is mandatory (that is it is the only supported type). Modify
539 ASN1_item_sign() to accept a NULL digest argument to indicate it should
540 use the default md. Update openssl utilities to use the default digest
541 type for signing if it is not explicitly indicated.
544 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
545 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
546 signing method from the key type. This effectively removes the link
547 between digests and public key types.
550 *) Add an OID cross reference table and utility functions. Its purpose is to
551 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
552 rsaEncryption. This will allow some of the algorithm specific hackery
553 needed to use the correct OID to be removed.
556 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
557 structures for PKCS7_sign(). They are now set up by the relevant public
561 *) Add provisional EC pkey method with support for ECDSA and ECDH.
564 *) Add support for key derivation (agreement) in the API, DH method and
568 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
569 public and private key formats. As a side effect these add additional
570 command line functionality not previously available: DSA signatures can be
571 generated and verified using pkeyutl and DH key support and generation in
576 [Oliver Tappe <zooey@hirschkaefer.de>]
578 *) New make target "install_html_docs" installs HTML renditions of the
580 [Oliver Tappe <zooey@hirschkaefer.de>]
582 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
583 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
584 support key and parameter generation and add initial key generation
585 functionality for RSA.
588 *) Add functions for main EVP_PKEY_method operations. The undocumented
589 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
590 EVP_PKEY_{encrypt,decrypt}_old.
593 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
594 key API, doesn't do much yet.
597 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
598 public key algorithms. New option to openssl utility:
599 "list-public-key-algorithms" to print out info.
602 *) Implement the Supported Elliptic Curves Extension for
603 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
606 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
607 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
610 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
611 utilities such as rsa, dsa, dsaparam etc except they process any key
615 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
616 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
617 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
621 *) Initial support for pluggable public key ASN1.
622 De-spaghettify the public key ASN1 handling. Move public and private
623 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
624 algorithm specific handling to a single module within the relevant
625 algorithm directory. Add functions to allow (near) opaque processing
626 of public and private key structures.
629 *) Implement the Supported Point Formats Extension for
630 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
633 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
634 for the psk identity [hint] and the psk callback functions to the
635 SSL_SESSION, SSL and SSL_CTX structure.
638 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
642 SSL_CTX_use_psk_identity_hint
643 SSL_get_psk_identity_hint
645 SSL_use_psk_identity_hint
647 [Mika Kousa and Pasi Eronen of Nokia Corporation]
649 *) Add RFC 3161 compliant time stamp request creation, response generation
650 and response verification functionality.
651 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
653 *) Add initial support for TLS extensions, specifically for the server_name
654 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
655 have new members for a host name. The SSL data structure has an
656 additional member SSL_CTX *initial_ctx so that new sessions can be
657 stored in that context to allow for session resumption, even after the
658 SSL has been switched to a new SSL_CTX in reaction to a client's
659 server_name extension.
661 New functions (subject to change):
664 SSL_get_servername_type()
667 New CTRL codes and macros (subject to change):
669 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
670 - SSL_CTX_set_tlsext_servername_callback()
671 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
672 - SSL_CTX_set_tlsext_servername_arg()
673 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
675 openssl s_client has a new '-servername ...' option.
677 openssl s_server has new options '-servername_host ...', '-cert2 ...',
678 '-key2 ...', '-servername_fatal' (subject to change). This allows
679 testing the HostName extension for a specific single host name ('-cert'
680 and '-key' remain fallbacks for handshakes without HostName
681 negotiation). If the unrecogninzed_name alert has to be sent, this by
682 default is a warning; it becomes fatal with the '-servername_fatal'
685 [Peter Sylvester, Remy Allais, Christophe Renou]
687 *) Whirlpool hash implementation is added.
690 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
691 bn(64,32). Because of instruction set limitations it doesn't have
692 any negative impact on performance. This was done mostly in order
693 to make it possible to share assembler modules, such as bn_mul_mont
694 implementations, between 32- and 64-bit builds without hassle.
697 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
698 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
702 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
703 dedicated Montgomery multiplication procedure, is introduced.
704 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
705 "64-bit" performance on certain 32-bit targets.
708 *) New option SSL_OP_NO_COMP to disable use of compression selectively
709 in SSL structures. New SSL ctrl to set maximum send fragment size.
710 Save memory by seeting the I/O buffer sizes dynamically instead of
711 using the maximum available value.
714 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
715 in addition to the text details.
718 *) Very, very preliminary EXPERIMENTAL support for printing of general
719 ASN1 structures. This currently produces rather ugly output and doesn't
720 handle several customised structures at all.
723 *) Integrated support for PVK file format and some related formats such
724 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
725 these in the 'rsa' and 'dsa' utilities.
728 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
731 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
732 place for the (very old) "NETSCAPE" format certificates which are now
733 handled using new ASN1 code equivalents.
736 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
737 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
738 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
741 *) Modify CRL distribution points extension code to print out previously
742 unsupported fields. Enhance extension setting code to allow setting of
746 *) Add print and set support for Issuing Distribution Point CRL extension.
749 *) Change 'Configure' script to enable Camellia by default.
752 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
755 [Ilya O. <vrghost@gmail.com>]
757 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
759 *) Don't set val to NULL when freeing up structures, it is freed up by
760 underlying code. If sizeof(void *) > sizeof(long) this can result in
761 zeroing past the valid field. (CVE-2009-0789)
762 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
764 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
765 checked correctly. This would allow some invalid signed attributes to
766 appear to verify correctly. (CVE-2009-0591)
767 [Ivan Nestlerode <inestlerode@us.ibm.com>]
769 *) Reject UniversalString and BMPString types with invalid lengths. This
770 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
771 a legal length. (CVE-2009-0590)
774 *) Set S/MIME signing as the default purpose rather than setting it
775 unconditionally. This allows applications to override it at the store
779 *) Permit restricted recursion of ASN1 strings. This is needed in practice
780 to handle some structures.
783 *) Improve efficiency of mem_gets: don't search whole buffer each time
785 [Jeremy Shapiro <jnshapir@us.ibm.com>]
787 *) New -hex option for openssl rand.
790 *) Print out UTF8String and NumericString when parsing ASN1.
793 *) Support NumericString type for name components.
796 *) Allow CC in the environment to override the automatically chosen
797 compiler. Note that nothing is done to ensure flags work with the
801 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
803 *) Properly check EVP_VerifyFinal() and similar return values
805 [Ben Laurie, Bodo Moeller, Google Security Team]
807 *) Enable TLS extensions by default.
810 *) Allow the CHIL engine to be loaded, whether the application is
811 multithreaded or not. (This does not release the developer from the
812 obligation to set up the dynamic locking callbacks.)
813 [Sander Temme <sander@temme.net>]
815 *) Use correct exit code if there is an error in dgst command.
816 [Steve Henson; problem pointed out by Roland Dirlewanger]
818 *) Tweak Configure so that you need to say "experimental-jpake" to enable
819 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
822 *) Add experimental JPAKE support, including demo authentication in
823 s_client and s_server.
826 *) Set the comparison function in v3_addr_canonize().
827 [Rob Austein <sra@hactrn.net>]
829 *) Add support for XMPP STARTTLS in s_client.
830 [Philip Paeps <philip@freebsd.org>]
832 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
833 to ensure that even with this option, only ciphersuites in the
834 server's preference list will be accepted. (Note that the option
835 applies only when resuming a session, so the earlier behavior was
836 just about the algorithm choice for symmetric cryptography.)
839 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
841 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
842 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
845 *) The fix in 0.9.8c that supposedly got rid of unsafe
846 double-checked locking was incomplete for RSA blinding,
847 addressing just one layer of what turns out to have been
848 doubly unsafe triple-checked locking.
850 So now fix this for real by retiring the MONT_HELPER macro
851 in crypto/rsa/rsa_eay.c.
853 [Bodo Moeller; problem pointed out by Marius Schilder]
855 *) Various precautionary measures:
857 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
859 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
860 (NB: This would require knowledge of the secret session ticket key
861 to exploit, in which case you'd be SOL either way.)
863 - Change bn_nist.c so that it will properly handle input BIGNUMs
864 outside the expected range.
866 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
869 [Neel Mehta, Bodo Moeller]
871 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
872 the load fails. Useful for distros.
873 [Ben Laurie and the FreeBSD team]
875 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
878 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
881 *) Expand ENGINE to support engine supplied SSL client certificate functions.
883 This work was sponsored by Logica.
886 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
887 keystores. Support for SSL/TLS client authentication too.
888 Not compiled unless enable-capieng specified to Configure.
890 This work was sponsored by Logica.
893 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
894 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
895 attribute creation routines such as certifcate requests and PKCS#12
899 Changes between 0.9.8g and 0.9.8h [28 May 2008]
901 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
902 handshake which could lead to a cilent crash as found using the
903 Codenomicon TLS test suite (CVE-2008-1672)
904 [Steve Henson, Mark Cox]
906 *) Fix double free in TLS server name extensions which could lead to
907 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
910 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
912 Clear the error queue to ensure that error entries left from
913 older function calls do not interfere with the correct operation.
914 [Lutz Jaenicke, Erik de Castro Lopo]
916 *) Remove root CA certificates of commercial CAs:
918 The OpenSSL project does not recommend any specific CA and does not
919 have any policy with respect to including or excluding any CA.
920 Therefore it does not make any sense to ship an arbitrary selection
921 of root CA certificates with the OpenSSL software.
924 *) RSA OAEP patches to fix two separate invalid memory reads.
925 The first one involves inputs when 'lzero' is greater than
926 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
927 before the beginning of from). The second one involves inputs where
928 the 'db' section contains nothing but zeroes (there is a one-byte
929 invalid read after the end of 'db').
930 [Ivan Nestlerode <inestlerode@us.ibm.com>]
932 *) Partial backport from 0.9.9-dev:
934 Introduce bn_mul_mont (dedicated Montgomery multiplication
935 procedure) as a candidate for BIGNUM assembler implementation.
936 While 0.9.9-dev uses assembler for various architectures, only
937 x86_64 is available by default here in the 0.9.8 branch, and
938 32-bit x86 is available through a compile-time setting.
940 To try the 32-bit x86 assembler implementation, use Configure
941 option "enable-montasm" (which exists only for this backport).
943 As "enable-montasm" for 32-bit x86 disclaims code stability
944 anyway, in this constellation we activate additional code
945 backported from 0.9.9-dev for further performance improvements,
946 namely BN_from_montgomery_word. (To enable this otherwise,
947 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
949 [Andy Polyakov (backport partially by Bodo Moeller)]
951 *) Add TLS session ticket callback. This allows an application to set
952 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
953 values. This is useful for key rollover for example where several key
954 sets may exist with different names.
957 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
958 This was broken until now in 0.9.8 releases, such that the only way
959 a registered ENGINE could be used (assuming it initialises
960 successfully on the host) was to explicitly set it as the default
961 for the relevant algorithms. This is in contradiction with 0.9.7
962 behaviour and the documentation. With this fix, when an ENGINE is
963 registered into a given algorithm's table of implementations, the
964 'uptodate' flag is reset so that auto-discovery will be used next
965 time a new context for that algorithm attempts to select an
967 [Ian Lister (tweaked by Geoff Thorpe)]
969 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
970 implemention in the following ways:
972 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
975 Lack of BER streaming support means one pass streaming processing is
976 only supported if data is detached: setting the streaming flag is
977 ignored for embedded content.
979 CMS support is disabled by default and must be explicitly enabled
980 with the enable-cms configuration option.
983 *) Update the GMP engine glue to do direct copies between BIGNUM and
984 mpz_t when openssl and GMP use the same limb size. Otherwise the
985 existing "conversion via a text string export" trick is still used.
986 [Paul Sheer <paulsheer@gmail.com>]
988 *) Zlib compression BIO. This is a filter BIO which compressed and
989 uncompresses any data passed through it.
992 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
993 RFC3394 compatible AES key wrapping.
996 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
997 sets string data without copying. X509_ALGOR_set0() and
998 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
999 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1000 from an X509_ATTRIBUTE structure optionally checking it occurs only
1001 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1005 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1006 to get the expected BN_FLG_CONSTTIME behavior.
1007 [Bodo Moeller (Google)]
1011 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1012 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1013 - added some more tests to do_tests.pl
1014 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1015 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1016 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1017 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1018 - various changes to netware.pl to enable gcc-cross builds on Win32
1020 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1021 - various changes to fix missing prototype warnings
1022 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1023 - added AES, WHIRLPOOL and CPUID assembler code to build files
1024 - added missing AES assembler make rules to mk1mf.pl
1025 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1026 [Guenter Knauf <eflash@gmx.net>]
1028 *) Implement certificate status request TLS extension defined in RFC3546.
1029 A client can set the appropriate parameters and receive the encoded
1030 OCSP response via a callback. A server can query the supplied parameters
1031 and set the encoded OCSP response in the callback. Add simplified examples
1032 to s_client and s_server.
1035 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1037 *) Fix various bugs:
1038 + Binary incompatibility of ssl_ctx_st structure
1039 + DTLS interoperation with non-compliant servers
1040 + Don't call get_session_cb() without proposed session
1041 + Fix ia64 assembler code
1042 [Andy Polyakov, Steve Henson]
1044 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1046 *) DTLS Handshake overhaul. There were longstanding issues with
1047 OpenSSL DTLS implementation, which were making it impossible for
1048 RFC 4347 compliant client to communicate with OpenSSL server.
1049 Unfortunately just fixing these incompatibilities would "cut off"
1050 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1051 server keeps tolerating non RFC compliant syntax. The opposite is
1052 not true, 0.9.8f client can not communicate with earlier server.
1053 This update even addresses CVE-2007-4995.
1056 *) Changes to avoid need for function casts in OpenSSL: some compilers
1057 (gcc 4.2 and later) reject their use.
1058 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1061 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1062 RFC4507bis. The encrypted ticket format is an encrypted encoded
1063 SSL_SESSION structure, that way new session features are automatically
1066 If a client application caches session in an SSL_SESSION structure
1067 support is transparent because tickets are now stored in the encoded
1070 The SSL_CTX structure automatically generates keys for ticket
1071 protection in servers so again support should be possible
1072 with no application modification.
1074 If a client or server wishes to disable RFC4507 support then the option
1075 SSL_OP_NO_TICKET can be set.
1077 Add a TLS extension debugging callback to allow the contents of any client
1078 or server extensions to be examined.
1080 This work was sponsored by Google.
1083 *) Add initial support for TLS extensions, specifically for the server_name
1084 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1085 have new members for a host name. The SSL data structure has an
1086 additional member SSL_CTX *initial_ctx so that new sessions can be
1087 stored in that context to allow for session resumption, even after the
1088 SSL has been switched to a new SSL_CTX in reaction to a client's
1089 server_name extension.
1091 New functions (subject to change):
1093 SSL_get_servername()
1094 SSL_get_servername_type()
1097 New CTRL codes and macros (subject to change):
1099 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1100 - SSL_CTX_set_tlsext_servername_callback()
1101 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1102 - SSL_CTX_set_tlsext_servername_arg()
1103 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1105 openssl s_client has a new '-servername ...' option.
1107 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1108 '-key2 ...', '-servername_fatal' (subject to change). This allows
1109 testing the HostName extension for a specific single host name ('-cert'
1110 and '-key' remain fallbacks for handshakes without HostName
1111 negotiation). If the unrecogninzed_name alert has to be sent, this by
1112 default is a warning; it becomes fatal with the '-servername_fatal'
1115 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1117 *) Add AES and SSE2 assembly language support to VC++ build.
1120 *) Mitigate attack on final subtraction in Montgomery reduction.
1123 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1124 (which previously caused an internal error).
1127 *) Squeeze another 10% out of IGE mode when in != out.
1130 *) AES IGE mode speedup.
1131 [Dean Gaudet (Google)]
1133 *) Add the Korean symmetric 128-bit cipher SEED (see
1134 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1135 add SEED ciphersuites from RFC 4162:
1137 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1138 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1139 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1140 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1142 To minimize changes between patchlevels in the OpenSSL 0.9.8
1143 series, SEED remains excluded from compilation unless OpenSSL
1144 is configured with 'enable-seed'.
1145 [KISA, Bodo Moeller]
1147 *) Mitigate branch prediction attacks, which can be practical if a
1148 single processor is shared, allowing a spy process to extract
1149 information. For detailed background information, see
1150 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1151 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1152 and Necessary Software Countermeasures"). The core of the change
1153 are new versions BN_div_no_branch() and
1154 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1155 respectively, which are slower, but avoid the security-relevant
1156 conditional branches. These are automatically called by BN_div()
1157 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1158 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1159 remove a conditional branch.
1161 BN_FLG_CONSTTIME is the new name for the previous
1162 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1163 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1164 in the exponent causes BN_mod_exp_mont() to use the alternative
1165 implementation in BN_mod_exp_mont_consttime().) The old name
1166 remains as a deprecated alias.
1168 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1169 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1170 constant-time implementations for more than just exponentiation.
1171 Here too the old name is kept as a deprecated alias.
1173 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1174 the BN_BLINDING structure gets an independent copy of the
1175 modulus. This means that the previous "BIGNUM *m" argument to
1176 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1177 essentially becomes "const BIGNUM *m", although we can't actually
1178 change this in the header file before 0.9.9. It allows
1179 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1180 enable BN_FLG_CONSTTIME.
1182 [Matthew D Wood (Intel Corp)]
1184 *) In the SSL/TLS server implementation, be strict about session ID
1185 context matching (which matters if an application uses a single
1186 external cache for different purposes). Previously,
1187 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1188 set. This did ensure strict client verification, but meant that,
1189 with applications using a single external cache for quite
1190 different requirements, clients could circumvent ciphersuite
1191 restrictions for a given session ID context by starting a session
1192 in a different context.
1195 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1196 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1197 authentication-only ciphersuites.
1200 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1201 not complete and could lead to a possible single byte overflow
1202 (CVE-2007-5135) [Ben Laurie]
1204 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1206 *) Since AES128 and AES256 (and similarly Camellia128 and
1207 Camellia256) share a single mask bit in the logic of
1208 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1209 kludge to work properly if AES128 is available and AES256 isn't
1210 (or if Camellia128 is available and Camellia256 isn't).
1213 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1214 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1215 When a point or a seed is encoded in a BIT STRING, we need to
1216 prevent the removal of trailing zero bits to get the proper DER
1217 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1218 of a NamedBitList, for which trailing 0 bits need to be removed.)
1221 *) Have SSL/TLS server implementation tolerate "mismatched" record
1222 protocol version while receiving ClientHello even if the
1223 ClientHello is fragmented. (The server can't insist on the
1224 particular protocol version it has chosen before the ServerHello
1225 message has informed the client about his choice.)
1228 *) Add RFC 3779 support.
1229 [Rob Austein for ARIN, Ben Laurie]
1231 *) Load error codes if they are not already present instead of using a
1232 static variable. This allows them to be cleanly unloaded and reloaded.
1233 Improve header file function name parsing.
1236 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1237 or CAPABILITY handshake as required by RFCs.
1240 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1242 *) Introduce limits to prevent malicious keys being able to
1243 cause a denial of service. (CVE-2006-2940)
1244 [Steve Henson, Bodo Moeller]
1246 *) Fix ASN.1 parsing of certain invalid structures that can result
1247 in a denial of service. (CVE-2006-2937) [Steve Henson]
1249 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1250 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1252 *) Fix SSL client code which could crash if connecting to a
1253 malicious SSLv2 server. (CVE-2006-4343)
1254 [Tavis Ormandy and Will Drewry, Google Security Team]
1256 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1257 match only those. Before that, "AES256-SHA" would be interpreted
1258 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1259 the same strength classification in 0.9.7h) as we currently only
1260 have a single AES bit in the ciphersuite description bitmap.
1261 That change, however, also applied to ciphersuite strings such as
1262 "RC4-MD5" that intentionally matched multiple ciphersuites --
1263 namely, SSL 2.0 ciphersuites in addition to the more common ones
1264 from SSL 3.0/TLS 1.0.
1266 So we change the selection algorithm again: Naming an explicit
1267 ciphersuite selects this one ciphersuite, and any other similar
1268 ciphersuite (same bitmap) from *other* protocol versions.
1269 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1270 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1272 Since SSL 2.0 does not have any ciphersuites for which the
1273 128/256 bit distinction would be relevant, this works for now.
1274 The proper fix will be to use different bits for AES128 and
1275 AES256, which would have avoided the problems from the beginning;
1276 however, bits are scarce, so we can only do this in a new release
1277 (not just a patchlevel) when we can change the SSL_CIPHER
1278 definition to split the single 'unsigned long mask' bitmap into
1279 multiple values to extend the available space.
1283 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1285 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1286 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1288 *) Add AES IGE and biIGE modes.
1291 *) Change the Unix randomness entropy gathering to use poll() when
1292 possible instead of select(), since the latter has some
1293 undesirable limitations.
1294 [Darryl Miles via Richard Levitte and Bodo Moeller]
1296 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1297 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1298 cannot be implicitly activated as part of, e.g., the "AES" alias.
1299 However, please upgrade to OpenSSL 0.9.9[-dev] for
1300 non-experimental use of the ECC ciphersuites to get TLS extension
1301 support, which is required for curve and point format negotiation
1302 to avoid potential handshake problems.
1305 *) Disable rogue ciphersuites:
1307 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1308 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1309 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1311 The latter two were purportedly from
1312 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1315 Also deactivate the remaining ciphersuites from
1316 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1317 unofficial, and the ID has long expired.
1320 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1321 dual-core machines) and other potential thread-safety issues.
1324 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1325 versions), which is now available for royalty-free use
1326 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1327 Also, add Camellia TLS ciphersuites from RFC 4132.
1329 To minimize changes between patchlevels in the OpenSSL 0.9.8
1330 series, Camellia remains excluded from compilation unless OpenSSL
1331 is configured with 'enable-camellia'.
1334 *) Disable the padding bug check when compression is in use. The padding
1335 bug check assumes the first packet is of even length, this is not
1336 necessarily true if compresssion is enabled and can result in false
1337 positives causing handshake failure. The actual bug test is ancient
1338 code so it is hoped that implementations will either have fixed it by
1339 now or any which still have the bug do not support compression.
1342 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1344 *) When applying a cipher rule check to see if string match is an explicit
1345 cipher suite and only match that one cipher suite if it is.
1348 *) Link in manifests for VC++ if needed.
1349 [Austin Ziegler <halostatue@gmail.com>]
1351 *) Update support for ECC-based TLS ciphersuites according to
1352 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1353 TLS extensions, which are supported starting with the 0.9.9
1354 branch, not in the OpenSSL 0.9.8 branch).
1357 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1358 opaque EVP_CIPHER_CTX handling.
1361 *) Fixes and enhancements to zlib compression code. We now only use
1362 "zlib1.dll" and use the default __cdecl calling convention on Win32
1363 to conform with the standards mentioned here:
1364 http://www.zlib.net/DLL_FAQ.txt
1365 Static zlib linking now works on Windows and the new --with-zlib-include
1366 --with-zlib-lib options to Configure can be used to supply the location
1367 of the headers and library. Gracefully handle case where zlib library
1371 *) Several fixes and enhancements to the OID generation code. The old code
1372 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1373 handle numbers larger than ULONG_MAX, truncated printing and had a
1374 non standard OBJ_obj2txt() behaviour.
1377 *) Add support for building of engines under engine/ as shared libraries
1378 under VC++ build system.
1381 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1382 Hopefully, we will not see any false combination of paths any more.
1385 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1387 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1388 (part of SSL_OP_ALL). This option used to disable the
1389 countermeasure against man-in-the-middle protocol-version
1390 rollback in the SSL 2.0 server implementation, which is a bad
1391 idea. (CVE-2005-2969)
1393 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1394 for Information Security, National Institute of Advanced Industrial
1395 Science and Technology [AIST], Japan)]
1397 *) Add two function to clear and return the verify parameter flags.
1400 *) Keep cipherlists sorted in the source instead of sorting them at
1401 runtime, thus removing the need for a lock.
1404 *) Avoid some small subgroup attacks in Diffie-Hellman.
1405 [Nick Mathewson and Ben Laurie]
1407 *) Add functions for well-known primes.
1410 *) Extended Windows CE support.
1411 [Satoshi Nakamura and Andy Polyakov]
1413 *) Initialize SSL_METHOD structures at compile time instead of during
1414 runtime, thus removing the need for a lock.
1417 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1418 attempting to decrypt each encrypted key in turn. Add support to
1422 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1424 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1427 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1430 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1431 key into the same file any more.
1434 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1437 *) Add -utf8 command line and config file option to 'ca'.
1438 [Stefan <stf@udoma.org]
1440 *) Removed the macro des_crypt(), as it seems to conflict with some
1441 libraries. Use DES_crypt().
1444 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1445 involves renaming the source and generated shared-libs for
1446 both. The engines will accept the corrected or legacy ids
1447 ('ncipher' and '4758_cca' respectively) when binding. NB,
1448 this only applies when building 'shared'.
1449 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1451 *) Add attribute functions to EVP_PKEY structure. Modify
1452 PKCS12_create() to recognize a CSP name attribute and
1453 use it. Make -CSP option work again in pkcs12 utility.
1456 *) Add new functionality to the bn blinding code:
1457 - automatic re-creation of the BN_BLINDING parameters after
1458 a fixed number of uses (currently 32)
1459 - add new function for parameter creation
1460 - introduce flags to control the update behaviour of the
1461 BN_BLINDING parameters
1462 - hide BN_BLINDING structure
1463 Add a second BN_BLINDING slot to the RSA structure to improve
1464 performance when a single RSA object is shared among several
1468 *) Add support for DTLS.
1469 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1471 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1472 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1475 *) Remove buggy and incompletet DH cert support from
1476 ssl/ssl_rsa.c and ssl/s3_both.c
1479 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1480 the apps/openssl applications.
1483 *) Compile clean with "-Wall -Wmissing-prototypes
1484 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1485 DEBUG_SAFESTACK must also be set.
1488 *) Change ./Configure so that certain algorithms can be disabled by default.
1489 The new counterpiece to "no-xxx" is "enable-xxx".
1491 The patented RC5 and MDC2 algorithms will now be disabled unless
1492 "enable-rc5" and "enable-mdc2", respectively, are specified.
1494 (IDEA remains enabled despite being patented. This is because IDEA
1495 is frequently required for interoperability, and there is no license
1496 fee for non-commercial use. As before, "no-idea" can be used to
1497 avoid this algorithm.)
1501 *) Add processing of proxy certificates (see RFC 3820). This work was
1502 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1503 EGEE (Enabling Grids for E-science in Europe).
1506 *) RC4 performance overhaul on modern architectures/implementations, such
1507 as Intel P4, IA-64 and AMD64.
1510 *) New utility extract-section.pl. This can be used specify an alternative
1511 section number in a pod file instead of having to treat each file as
1512 a separate case in Makefile. This can be done by adding two lines to the
1515 =for comment openssl_section:XXX
1517 The blank line is mandatory.
1521 *) New arguments -certform, -keyform and -pass for s_client and s_server
1522 to allow alternative format key and certificate files and passphrase
1526 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1527 update associated structures and add various utility functions.
1529 Add new policy related verify parameters, include policy checking in
1530 standard verify code. Enhance 'smime' application with extra parameters
1531 to support policy checking and print out.
1534 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1535 Nehemiah processors. These extensions support AES encryption in hardware
1536 as well as RNG (though RNG support is currently disabled).
1537 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1539 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1542 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1543 [Andy Polyakov and a number of other people]
1545 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1546 implementation contributed by IBM.
1547 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1549 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1550 exponent rather than 'unsigned long'. There is a corresponding change to
1551 the new 'rsa_keygen' element of the RSA_METHOD structure.
1552 [Jelte Jansen, Geoff Thorpe]
1554 *) Functionality for creating the initial serial number file is now
1555 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1557 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1558 number file to 1, which is bound to cause problems. To avoid
1559 the problems while respecting compatibility between different 0.9.7
1560 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1561 CA.pl for serial number initialization. With the new release 0.9.8,
1562 we can fix the problem directly in the 'ca' utility.)
1565 *) Reduced header interdepencies by declaring more opaque objects in
1566 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1567 give fewer recursive includes, which could break lazy source code - so
1568 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1569 developers should define this symbol when building and using openssl to
1570 ensure they track the recommended behaviour, interfaces, [etc], but
1571 backwards-compatible behaviour prevails when this isn't defined.
1574 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1577 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1578 This will generate a random key of the appropriate length based on the
1579 cipher context. The EVP_CIPHER can provide its own random key generation
1580 routine to support keys of a specific form. This is used in the des and
1581 3des routines to generate a key of the correct parity. Update S/MIME
1582 code to use new functions and hence generate correct parity DES keys.
1583 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1584 valid (weak or incorrect parity).
1587 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1588 as looking them up. This is useful when the verified structure may contain
1589 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1590 present unless the new PKCS7_NO_CRL flag is asserted.
1593 *) Extend ASN1 oid configuration module. It now additionally accepts the
1596 shortName = some long name, 1.2.3.4
1599 *) Reimplemented the BN_CTX implementation. There is now no more static
1600 limitation on the number of variables it can handle nor the depth of the
1601 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1602 information can now expand as required, and rather than having a single
1603 static array of bignums, BN_CTX now uses a linked-list of such arrays
1604 allowing it to expand on demand whilst maintaining the usefulness of
1605 BN_CTX's "bundling".
1608 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1609 to allow all RSA operations to function using a single BN_CTX.
1612 *) Preliminary support for certificate policy evaluation and checking. This
1613 is initially intended to pass the tests outlined in "Conformance Testing
1614 of Relying Party Client Certificate Path Processing Logic" v1.07.
1617 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1618 remained unused and not that useful. A variety of other little bignum
1619 tweaks and fixes have also been made continuing on from the audit (see
1623 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1624 associated ASN1, EVP and SSL functions and old ASN1 macros.
1627 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1628 and this should never fail. So the return value from the use of
1629 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1630 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1633 *) BN_CTX_get() should return zero-valued bignums, providing the same
1634 initialised value as BN_new().
1635 [Geoff Thorpe, suggested by Ulf Möller]
1637 *) Support for inhibitAnyPolicy certificate extension.
1640 *) An audit of the BIGNUM code is underway, for which debugging code is
1641 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1642 is considered valid when processing BIGNUMs, and causes execution to
1643 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1644 further steps are taken to deliberately pollute unused data in BIGNUM
1645 structures to try and expose faulty code further on. For now, openssl will
1646 (in its default mode of operation) continue to tolerate the inconsistent
1647 forms that it has tolerated in the past, but authors and packagers should
1648 consider trying openssl and their own applications when compiled with
1649 these debugging symbols defined. It will help highlight potential bugs in
1650 their own code, and will improve the test coverage for OpenSSL itself. At
1651 some point, these tighter rules will become openssl's default to improve
1652 maintainability, though the assert()s and other overheads will remain only
1653 in debugging configurations. See bn.h for more details.
1654 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1656 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1657 that can only be obtained through BN_CTX_new() (which implicitly
1658 initialises it). The presence of this function only made it possible
1659 to overwrite an existing structure (and cause memory leaks).
1662 *) Because of the callback-based approach for implementing LHASH as a
1663 template type, lh_insert() adds opaque objects to hash-tables and
1664 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1665 to clean up those corresponding objects before destroying the hash table
1666 (and losing the object pointers). So some over-zealous constifications in
1667 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1668 objects as "const" and the lh_doall[_arg] callback wrappers are not
1669 prototyped to have "const" restrictions on the object pointers they are
1670 given (and so aren't required to cast them away any more).
1673 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1674 (speed) prefers to use its own implementation. The two implementations
1675 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1676 its object type properly exposed (MS_TM) instead of casting to/from "char
1677 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1678 aren't necessarily the greatest nomenclatures - but this is what was used
1679 internally to the implementation so I've used that for now.
1682 *) Ensure that deprecated functions do not get compiled when
1683 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1684 the self-tests were still using deprecated key-generation functions so
1685 these have been updated also.
1688 *) Reorganise PKCS#7 code to separate the digest location functionality
1689 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1690 New function PKCS7_set_digest() to set the digest type for PKCS#7
1691 digestedData type. Add additional code to correctly generate the
1692 digestedData type and add support for this type in PKCS7 initialization
1696 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1697 structure of type "other".
1700 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1701 sure the loop does correctly stop and breaking ("division by zero")
1702 modulus operations are not performed. The (pre-generated) prime
1703 table crypto/bn/bn_prime.h was already correct, but it could not be
1704 re-generated on some platforms because of the "division by zero"
1705 situation in the script.
1706 [Ralf S. Engelschall]
1708 *) Update support for ECC-based TLS ciphersuites according to
1709 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1710 SHA-1 now is only used for "small" curves (where the
1711 representation of a field element takes up to 24 bytes); for
1712 larger curves, the field element resulting from ECDH is directly
1713 used as premaster secret.
1714 [Douglas Stebila (Sun Microsystems Laboratories)]
1716 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1717 curve secp160r1 to the tests.
1718 [Douglas Stebila (Sun Microsystems Laboratories)]
1720 *) Add the possibility to load symbols globally with DSO.
1721 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1723 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1724 control of the error stack.
1727 *) Add support for STORE in ENGINE.
1730 *) Add the STORE type. The intention is to provide a common interface
1731 to certificate and key stores, be they simple file-based stores, or
1732 HSM-type store, or LDAP stores, or...
1733 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1736 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1737 pass a list of arguments to any function as well as provide a way
1738 for a function to pass data back to the caller.
1741 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1742 works like BUF_strdup() but can be used to duplicate a portion of
1743 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1747 *) Add the function sk_find_ex() which works like sk_find(), but will
1748 return an index to an element even if an exact match couldn't be
1749 found. The index is guaranteed to point at the element where the
1750 searched-for key would be inserted to preserve sorting order.
1753 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1754 takes an extra flags argument for optional functionality. Currently,
1755 the following flags are defined:
1757 OBJ_BSEARCH_VALUE_ON_NOMATCH
1758 This one gets OBJ_bsearch_ex() to return a pointer to the first
1759 element where the comparing function returns a negative or zero
1762 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1763 This one gets OBJ_bsearch_ex() to return a pointer to the first
1764 element where the comparing function returns zero. This is useful
1765 if there are more than one element where the comparing function
1769 *) Make it possible to create self-signed certificates with 'openssl ca'
1770 in such a way that the self-signed certificate becomes part of the
1771 CA database and uses the same mechanisms for serial number generation
1772 as all other certificate signing. The new flag '-selfsign' enables
1773 this functionality. Adapt CA.sh and CA.pl.in.
1776 *) Add functionality to check the public key of a certificate request
1777 against a given private. This is useful to check that a certificate
1778 request can be signed by that key (self-signing).
1781 *) Make it possible to have multiple active certificates with the same
1782 subject in the CA index file. This is done only if the keyword
1783 'unique_subject' is set to 'no' in the main CA section (default
1784 if 'CA_default') of the configuration file. The value is saved
1785 with the database itself in a separate index attribute file,
1786 named like the index file with '.attr' appended to the name.
1789 *) Generate muti valued AVAs using '+' notation in config files for
1793 *) Support for nameConstraints certificate extension.
1796 *) Support for policyConstraints certificate extension.
1799 *) Support for policyMappings certificate extension.
1802 *) Make sure the default DSA_METHOD implementation only uses its
1803 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1804 and change its own handlers to be NULL so as to remove unnecessary
1805 indirection. This lets alternative implementations fallback to the
1806 default implementation more easily.
1809 *) Support for directoryName in GeneralName related extensions
1813 *) Make it possible to link applications using Makefile.shared.
1814 Make that possible even when linking against static libraries!
1817 *) Support for single pass processing for S/MIME signing. This now
1818 means that S/MIME signing can be done from a pipe, in addition
1819 cleartext signing (multipart/signed type) is effectively streaming
1820 and the signed data does not need to be all held in memory.
1822 This is done with a new flag PKCS7_STREAM. When this flag is set
1823 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1824 is done after the data is output (and digests calculated) in
1825 SMIME_write_PKCS7().
1828 *) Add full support for -rpath/-R, both in shared libraries and
1829 applications, at least on the platforms where it's known how
1833 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1834 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1835 will now compute a table of multiples of the generator that
1836 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1837 faster (notably in the case of a single point multiplication,
1838 scalar * generator).
1839 [Nils Larsch, Bodo Moeller]
1841 *) IPv6 support for certificate extensions. The various extensions
1842 which use the IP:a.b.c.d can now take IPv6 addresses using the
1843 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1847 *) Added an ENGINE that implements RSA by performing private key
1848 exponentiations with the GMP library. The conversions to and from
1849 GMP's mpz_t format aren't optimised nor are any montgomery forms
1850 cached, and on x86 it appears OpenSSL's own performance has caught up.
1851 However there are likely to be other architectures where GMP could
1852 provide a boost. This ENGINE is not built in by default, but it can be
1853 specified at Configure time and should be accompanied by the necessary
1854 linker additions, eg;
1855 ./config -DOPENSSL_USE_GMP -lgmp
1858 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1859 testing availability of engines with "-t" - the old behaviour is
1860 produced by increasing the feature's verbosity with "-tt".
1863 *) ECDSA routines: under certain error conditions uninitialized BN objects
1864 could be freed. Solution: make sure initialization is performed early
1865 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1869 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1870 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1871 software implementations. For DSA and DH, parameter generation can
1872 also be overriden by providing the appropriate method callbacks.
1875 *) Change the "progress" mechanism used in key-generation and
1876 primality testing to functions that take a new BN_GENCB pointer in
1877 place of callback/argument pairs. The new API functions have "_ex"
1878 postfixes and the older functions are reimplemented as wrappers for
1879 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1880 declarations of the old functions to help (graceful) attempts to
1881 migrate to the new functions. Also, the new key-generation API
1882 functions operate on a caller-supplied key-structure and return
1883 success/failure rather than returning a key or NULL - this is to
1884 help make "keygen" another member function of RSA_METHOD etc.
1886 Example for using the new callback interface:
1888 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1892 BN_GENCB_set(&my_cb, my_callback, my_arg);
1894 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1895 /* For the meaning of a, b in calls to my_callback(), see the
1896 * documentation of the function that calls the callback.
1897 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1898 * my_callback should return 1 if it wants BN_is_prime_ex()
1899 * to continue, or 0 to stop.
1904 *) Change the ZLIB compression method to be stateful, and make it
1905 available to TLS with the number defined in
1906 draft-ietf-tls-compression-04.txt.
1909 *) Add the ASN.1 structures and functions for CertificatePair, which
1910 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1912 CertificatePair ::= SEQUENCE {
1913 forward [0] Certificate OPTIONAL,
1914 reverse [1] Certificate OPTIONAL,
1915 -- at least one of the pair shall be present -- }
1917 Also implement the PEM functions to read and write certificate
1918 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1920 This needed to be defined, mostly for the sake of the LDAP
1921 attribute crossCertificatePair, but may prove useful elsewhere as
1925 *) Make it possible to inhibit symlinking of shared libraries in
1926 Makefile.shared, for Cygwin's sake.
1929 *) Extend the BIGNUM API by creating a function
1930 void BN_set_negative(BIGNUM *a, int neg);
1931 and a macro that behave like
1932 int BN_is_negative(const BIGNUM *a);
1934 to avoid the need to access 'a->neg' directly in applications.
1937 *) Implement fast modular reduction for pseudo-Mersenne primes
1938 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1939 EC_GROUP_new_curve_GFp() will now automatically use this
1941 [Nils Larsch <nla@trustcenter.de>]
1943 *) Add new lock type (CRYPTO_LOCK_BN).
1946 *) Change the ENGINE framework to automatically load engines
1947 dynamically from specific directories unless they could be
1948 found to already be built in or loaded. Move all the
1949 current engines except for the cryptodev one to a new
1951 The engines in engines/ are built as shared libraries if
1952 the "shared" options was given to ./Configure or ./config.
1953 Otherwise, they are inserted in libcrypto.a.
1954 /usr/local/ssl/engines is the default directory for dynamic
1955 engines, but that can be overriden at configure time through
1956 the usual use of --prefix and/or --openssldir, and at run
1957 time with the environment variable OPENSSL_ENGINES.
1958 [Geoff Thorpe and Richard Levitte]
1960 *) Add Makefile.shared, a helper makefile to build shared
1961 libraries. Addapt Makefile.org.
1964 *) Add version info to Win32 DLLs.
1965 [Peter 'Luna' Runestig" <peter@runestig.com>]
1967 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1968 can be added using this API to created arbitrary PKCS#12
1969 files while avoiding the low level API.
1971 New options to PKCS12_create(), key or cert can be NULL and
1972 will then be omitted from the output file. The encryption
1973 algorithm NIDs can be set to -1 for no encryption, the mac
1974 iteration count can be set to 0 to omit the mac.
1976 Enhance pkcs12 utility by making the -nokeys and -nocerts
1977 options work when creating a PKCS#12 file. New option -nomac
1978 to omit the mac, NONE can be set for an encryption algorithm.
1979 New code is modified to use the enhanced PKCS12_create()
1980 instead of the low level API.
1983 *) Extend ASN1 encoder to support indefinite length constructed
1984 encoding. This can output sequences tags and octet strings in
1985 this form. Modify pk7_asn1.c to support indefinite length
1986 encoding. This is experimental and needs additional code to
1987 be useful, such as an ASN1 bio and some enhanced streaming
1990 Extend template encode functionality so that tagging is passed
1991 down to the template encoder.
1994 *) Let 'openssl req' fail if an argument to '-newkey' is not
1995 recognized instead of using RSA as a default.
1998 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1999 As these are not official, they are not included in "ALL";
2000 the "ECCdraft" ciphersuite group alias can be used to select them.
2001 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2003 *) Add ECDH engine support.
2004 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2006 *) Add ECDH in new directory crypto/ecdh/.
2007 [Douglas Stebila (Sun Microsystems Laboratories)]
2009 *) Let BN_rand_range() abort with an error after 100 iterations
2010 without success (which indicates a broken PRNG).
2013 *) Change BN_mod_sqrt() so that it verifies that the input value
2014 is really the square of the return value. (Previously,
2015 BN_mod_sqrt would show GIGO behaviour.)
2018 *) Add named elliptic curves over binary fields from X9.62, SECG,
2019 and WAP/WTLS; add OIDs that were still missing.
2021 [Sheueling Chang Shantz and Douglas Stebila
2022 (Sun Microsystems Laboratories)]
2024 *) Extend the EC library for elliptic curves over binary fields
2025 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2028 EC_GF2m_simple_method
2032 EC_GROUP_new_curve_GF2m
2033 EC_GROUP_set_curve_GF2m
2034 EC_GROUP_get_curve_GF2m
2035 EC_POINT_set_affine_coordinates_GF2m
2036 EC_POINT_get_affine_coordinates_GF2m
2037 EC_POINT_set_compressed_coordinates_GF2m
2039 Point compression for binary fields is disabled by default for
2040 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2043 As binary polynomials are represented as BIGNUMs, various members
2044 of the EC_GROUP and EC_POINT data structures can be shared
2045 between the implementations for prime fields and binary fields;
2046 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2047 are essentially identical to their ..._GFp counterparts.
2048 (For simplicity, the '..._GFp' prefix has been dropped from
2049 various internal method names.)
2051 An internal 'field_div' method (similar to 'field_mul' and
2052 'field_sqr') has been added; this is used only for binary fields.
2054 [Sheueling Chang Shantz and Douglas Stebila
2055 (Sun Microsystems Laboratories)]
2057 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2058 through methods ('mul', 'precompute_mult').
2060 The generic implementations (now internally called 'ec_wNAF_mul'
2061 and 'ec_wNAF_precomputed_mult') remain the default if these
2062 methods are undefined.
2064 [Sheueling Chang Shantz and Douglas Stebila
2065 (Sun Microsystems Laboratories)]
2067 *) New function EC_GROUP_get_degree, which is defined through
2068 EC_METHOD. For curves over prime fields, this returns the bit
2069 length of the modulus.
2071 [Sheueling Chang Shantz and Douglas Stebila
2072 (Sun Microsystems Laboratories)]
2074 *) New functions EC_GROUP_dup, EC_POINT_dup.
2075 (These simply call ..._new and ..._copy).
2077 [Sheueling Chang Shantz and Douglas Stebila
2078 (Sun Microsystems Laboratories)]
2080 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2081 Polynomials are represented as BIGNUMs (where the sign bit is not
2082 used) in the following functions [macros]:
2085 BN_GF2m_sub [= BN_GF2m_add]
2086 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2087 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2088 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2090 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2091 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2092 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2093 BN_GF2m_cmp [= BN_ucmp]
2095 (Note that only the 'mod' functions are actually for fields GF(2^m).
2096 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2098 For some functions, an the irreducible polynomial defining a
2099 field can be given as an 'unsigned int[]' with strictly
2100 decreasing elements giving the indices of those bits that are set;
2101 i.e., p[] represents the polynomial
2102 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2104 p[0] > p[1] > ... > p[k] = 0.
2105 This applies to the following functions:
2110 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2111 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2113 BN_GF2m_mod_sqrt_arr
2114 BN_GF2m_mod_solve_quad_arr
2118 Conversion can be performed by the following functions:
2123 bntest.c has additional tests for binary polynomial arithmetic.
2125 Two implementations for BN_GF2m_mod_div() are available.
2126 The default algorithm simply uses BN_GF2m_mod_inv() and
2127 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2128 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2129 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2131 [Sheueling Chang Shantz and Douglas Stebila
2132 (Sun Microsystems Laboratories)]
2134 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2135 functionality is disabled at compile-time.
2136 [Douglas Stebila <douglas.stebila@sun.com>]
2138 *) Change default behaviour of 'openssl asn1parse' so that more
2139 information is visible when viewing, e.g., a certificate:
2141 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2142 mode the content of non-printable OCTET STRINGs is output in a
2143 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2144 avoid the appearance of a printable string.
2145 [Nils Larsch <nla@trustcenter.de>]
2147 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2149 EC_GROUP_set_asn1_flag()
2150 EC_GROUP_get_asn1_flag()
2151 EC_GROUP_set_point_conversion_form()
2152 EC_GROUP_get_point_conversion_form()
2153 These control ASN1 encoding details:
2154 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2155 has been set to OPENSSL_EC_NAMED_CURVE.
2156 - Points are encoded in uncompressed form by default; options for
2157 asn1_for are as for point2oct, namely
2158 POINT_CONVERSION_COMPRESSED
2159 POINT_CONVERSION_UNCOMPRESSED
2160 POINT_CONVERSION_HYBRID
2162 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2165 EC_GROUP_get0_seed()
2166 EC_GROUP_get_seed_len()
2167 This is used only for ASN1 purposes (so far).
2168 [Nils Larsch <nla@trustcenter.de>]
2170 *) Add 'field_type' member to EC_METHOD, which holds the NID
2171 of the appropriate field type OID. The new function
2172 EC_METHOD_get_field_type() returns this value.
2173 [Nils Larsch <nla@trustcenter.de>]
2178 EC_POINT_point2hex()
2179 EC_POINT_hex2point()
2180 providing useful interfaces to EC_POINT_point2oct() and
2181 EC_POINT_oct2point().
2182 [Nils Larsch <nla@trustcenter.de>]
2184 *) Change internals of the EC library so that the functions
2185 EC_GROUP_set_generator()
2186 EC_GROUP_get_generator()
2187 EC_GROUP_get_order()
2188 EC_GROUP_get_cofactor()
2189 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2190 to methods, which would lead to unnecessary code duplication when
2191 adding different types of curves.
2192 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2194 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2195 arithmetic, and such that modified wNAFs are generated
2196 (which avoid length expansion in many cases).
2199 *) Add a function EC_GROUP_check_discriminant() (defined via
2200 EC_METHOD) that verifies that the curve discriminant is non-zero.
2202 Add a function EC_GROUP_check() that makes some sanity tests
2203 on a EC_GROUP, its generator and order. This includes
2204 EC_GROUP_check_discriminant().
2205 [Nils Larsch <nla@trustcenter.de>]
2207 *) Add ECDSA in new directory crypto/ecdsa/.
2209 Add applications 'openssl ecparam' and 'openssl ecdsa'
2210 (these are based on 'openssl dsaparam' and 'openssl dsa').
2212 ECDSA support is also included in various other files across the
2213 library. Most notably,
2214 - 'openssl req' now has a '-newkey ecdsa:file' option;
2215 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2216 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2217 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2218 them suitable for ECDSA where domain parameters must be
2219 extracted before the specific public key;
2220 - ECDSA engine support has been added.
2221 [Nils Larsch <nla@trustcenter.de>]
2223 *) Include some named elliptic curves, and add OIDs from X9.62,
2224 SECG, and WAP/WTLS. Each curve can be obtained from the new
2226 EC_GROUP_new_by_curve_name(),
2227 and the list of available named curves can be obtained with
2228 EC_get_builtin_curves().
2229 Also add a 'curve_name' member to EC_GROUP objects, which can be
2231 EC_GROUP_set_curve_name()
2232 EC_GROUP_get_curve_name()
2233 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2235 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2236 was actually never needed) and in BN_mul(). The removal in BN_mul()
2237 required a small change in bn_mul_part_recursive() and the addition
2238 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2239 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2240 bn_sub_words() and bn_add_words() except they take arrays with
2244 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
2246 *) In the SSL/TLS server implementation, be strict about session ID
2247 context matching (which matters if an application uses a single
2248 external cache for different purposes). Previously,
2249 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2250 set. This did ensure strict client verification, but meant that,
2251 with applications using a single external cache for quite
2252 different requirements, clients could circumvent ciphersuite
2253 restrictions for a given session ID context by starting a session
2254 in a different context.
2257 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2259 *) Cleanse PEM buffers before freeing them since they may contain
2261 [Benjamin Bennett <ben@psc.edu>]
2263 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2264 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2265 authentication-only ciphersuites.
2268 *) Since AES128 and AES256 share a single mask bit in the logic of
2269 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2270 kludge to work properly if AES128 is available and AES256 isn't.
2273 *) Expand security boundary to match 1.1.1 module.
2276 *) Remove redundant features: hash file source, editing of test vectors
2277 modify fipsld to use external fips_premain.c signature.
2280 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2281 run algorithm test programs.
2284 *) Make algorithm test programs more tolerant of whitespace.
2287 *) Have SSL/TLS server implementation tolerate "mismatched" record
2288 protocol version while receiving ClientHello even if the
2289 ClientHello is fragmented. (The server can't insist on the
2290 particular protocol version it has chosen before the ServerHello
2291 message has informed the client about his choice.)
2294 *) Load error codes if they are not already present instead of using a
2295 static variable. This allows them to be cleanly unloaded and reloaded.
2298 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2300 *) Introduce limits to prevent malicious keys being able to
2301 cause a denial of service. (CVE-2006-2940)
2302 [Steve Henson, Bodo Moeller]
2304 *) Fix ASN.1 parsing of certain invalid structures that can result
2305 in a denial of service. (CVE-2006-2937) [Steve Henson]
2307 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2308 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2310 *) Fix SSL client code which could crash if connecting to a
2311 malicious SSLv2 server. (CVE-2006-4343)
2312 [Tavis Ormandy and Will Drewry, Google Security Team]
2314 *) Change ciphersuite string processing so that an explicit
2315 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2316 will no longer include "AES128-SHA"), and any other similar
2317 ciphersuite (same bitmap) from *other* protocol versions (so that
2318 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2319 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2320 changes from 0.9.8b and 0.9.8d.
2323 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2325 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2326 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2328 *) Change the Unix randomness entropy gathering to use poll() when
2329 possible instead of select(), since the latter has some
2330 undesirable limitations.
2331 [Darryl Miles via Richard Levitte and Bodo Moeller]
2333 *) Disable rogue ciphersuites:
2335 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2336 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2337 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2339 The latter two were purportedly from
2340 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2343 Also deactive the remaining ciphersuites from
2344 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2345 unofficial, and the ID has long expired.
2348 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2349 dual-core machines) and other potential thread-safety issues.
2352 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2354 *) Adapt fipsld and the build system to link against the validated FIPS
2355 module in FIPS mode.
2358 *) Fixes for VC++ 2005 build under Windows.
2361 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2362 from a Windows bash shell such as MSYS. It is autodetected from the
2363 "config" script when run from a VC++ environment. Modify standard VC++
2364 build to use fipscanister.o from the GNU make build.
2367 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2369 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2370 The value now differs depending on if you build for FIPS or not.
2371 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2372 safely run with a non-FIPSed libcrypto, as it may crash because of
2373 the difference induced by this change.
2376 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2378 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2379 (part of SSL_OP_ALL). This option used to disable the
2380 countermeasure against man-in-the-middle protocol-version
2381 rollback in the SSL 2.0 server implementation, which is a bad
2382 idea. (CVE-2005-2969)
2384 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2385 for Information Security, National Institute of Advanced Industrial
2386 Science and Technology [AIST], Japan)]
2388 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2389 mainly for FIPS compliance and not fully integrated at this stage.
2392 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2393 the exponentiation using a fixed-length exponent. (Otherwise,
2394 the information leaked through timing could expose the secret key
2395 after many signatures; cf. Bleichenbacher's attack on DSA with
2399 *) Make a new fixed-window mod_exp implementation the default for
2400 RSA, DSA, and DH private-key operations so that the sequence of
2401 squares and multiplies and the memory access pattern are
2402 independent of the particular secret key. This will mitigate
2403 cache-timing and potential related attacks.
2405 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2406 and this is automatically used by BN_mod_exp_mont() if the new flag
2407 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2408 will use this BN flag for private exponents unless the flag
2409 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2410 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2412 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2414 *) Change the client implementation for SSLv23_method() and
2415 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2416 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2417 (Previously, the SSL 2.0 backwards compatible Client Hello
2418 message format would be used even with SSL_OP_NO_SSLv2.)
2421 *) Add support for smime-type MIME parameter in S/MIME messages which some
2425 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2426 a threadsafe manner. Modify rsa code to use new function and add calls
2427 to dsa and dh code (which had race conditions before).
2430 *) Include the fixed error library code in the C error file definitions
2431 instead of fixing them up at runtime. This keeps the error code
2432 structures constant.
2435 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2437 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2440 *) Fixes for newer kerberos headers. NB: the casts are needed because
2441 the 'length' field is signed on one version and unsigned on another
2442 with no (?) obvious way to tell the difference, without these VC++
2443 complains. Also the "definition" of FAR (blank) is no longer included
2444 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2445 some needed definitions.
2448 *) Undo Cygwin change.
2451 *) Added support for proxy certificates according to RFC 3820.
2452 Because they may be a security thread to unaware applications,
2453 they must be explicitely allowed in run-time. See
2454 docs/HOWTO/proxy_certificates.txt for further information.
2457 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2459 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2460 server and client random values. Previously
2461 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2462 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2464 This change has negligible security impact because:
2466 1. Server and client random values still have 24 bytes of pseudo random
2469 2. Server and client random values are sent in the clear in the initial
2472 3. The master secret is derived using the premaster secret (48 bytes in
2473 size for static RSA ciphersuites) as well as client server and random
2476 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2479 [Stephen Henson, reported by UK NISCC]
2481 *) Use Windows randomness collection on Cygwin.
2484 *) Fix hang in EGD/PRNGD query when communication socket is closed
2485 prematurely by EGD/PRNGD.
2486 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2488 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2491 *) Back-port of selected performance improvements from development
2492 branch, as well as improved support for PowerPC platforms.
2495 *) Add lots of checks for memory allocation failure, error codes to indicate
2496 failure and freeing up memory if a failure occurs.
2497 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2499 *) Add new -passin argument to dgst.
2502 *) Perform some character comparisons of different types in X509_NAME_cmp:
2503 this is needed for some certificates that reencode DNs into UTF8Strings
2504 (in violation of RFC3280) and can't or wont issue name rollover
2508 *) Make an explicit check during certificate validation to see that
2509 the CA setting in each certificate on the chain is correct. As a
2510 side effect always do the following basic checks on extensions,
2511 not just when there's an associated purpose to the check:
2513 - if there is an unhandled critical extension (unless the user
2514 has chosen to ignore this fault)
2515 - if the path length has been exceeded (if one is set at all)
2516 - that certain extensions fit the associated purpose (if one has
2520 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2522 *) Avoid a race condition when CRLs are checked in a multi threaded
2523 environment. This would happen due to the reordering of the revoked
2524 entries during signature checking and serial number lookup. Now the
2525 encoding is cached and the serial number sort performed under a lock.
2526 Add new STACK function sk_is_sorted().
2529 *) Add Delta CRL to the extension code.
2532 *) Various fixes to s3_pkt.c so alerts are sent properly.
2533 [David Holmes <d.holmes@f5.com>]
2535 *) Reduce the chances of duplicate issuer name and serial numbers (in
2536 violation of RFC3280) using the OpenSSL certificate creation utilities.
2537 This is done by creating a random 64 bit value for the initial serial
2538 number when a serial number file is created or when a self signed
2539 certificate is created using 'openssl req -x509'. The initial serial
2540 number file is created using 'openssl x509 -next_serial' in CA.pl
2541 rather than being initialized to 1.
2544 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2546 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2547 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2548 [Joe Orton, Steve Henson]
2550 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2552 [Joe Orton, Steve Henson]
2554 *) Make it possible to have multiple active certificates with the same
2555 subject in the CA index file. This is done only if the keyword
2556 'unique_subject' is set to 'no' in the main CA section (default
2557 if 'CA_default') of the configuration file. The value is saved
2558 with the database itself in a separate index attribute file,
2559 named like the index file with '.attr' appended to the name.
2562 *) X509 verify fixes. Disable broken certificate workarounds when
2563 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2564 keyUsage extension present. Don't accept CRLs with unhandled critical
2565 extensions: since verify currently doesn't process CRL extensions this
2566 rejects a CRL with *any* critical extensions. Add new verify error codes
2570 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2571 A clarification of RFC2560 will require the use of OCTET STRINGs and
2572 some implementations cannot handle the current raw format. Since OpenSSL
2573 copies and compares OCSP nonces as opaque blobs without any attempt at
2574 parsing them this should not create any compatibility issues.
2577 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2578 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2579 this HMAC (and other) operations are several times slower than OpenSSL
2583 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2584 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2586 *) Use the correct content when signing type "other".
2589 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2591 *) Fix various bugs revealed by running the NISCC test suite:
2593 Stop out of bounds reads in the ASN1 code when presented with
2594 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2596 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2598 If verify callback ignores invalid public key errors don't try to check
2599 certificate signature with the NULL public key.
2603 *) New -ignore_err option in ocsp application to stop the server
2604 exiting on the first error in a request.
2607 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2608 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2612 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2613 extra data after the compression methods not only for TLS 1.0
2614 but also for SSL 3.0 (as required by the specification).
2615 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2617 *) Change X509_certificate_type() to mark the key as exported/exportable
2618 when it's 512 *bits* long, not 512 bytes.
2621 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2622 blocks during encryption.
2625 *) Various fixes to base64 BIO and non blocking I/O. On write
2626 flushes were not handled properly if the BIO retried. On read
2627 data was not being buffered properly and had various logic bugs.
2628 This also affects blocking I/O when the data being decoded is a
2632 *) Various S/MIME bugfixes and compatibility changes:
2633 output correct application/pkcs7 MIME type if
2634 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2635 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2636 of files as .eml work). Correctly handle very long lines in MIME
2640 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2642 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2643 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2644 a protocol version number mismatch like a decryption error
2645 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2648 *) Turn on RSA blinding by default in the default implementation
2649 to avoid a timing attack. Applications that don't want it can call
2650 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2651 They would be ill-advised to do so in most cases.
2652 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2654 *) Change RSA blinding code so that it works when the PRNG is not
2655 seeded (in this case, the secret RSA exponent is abused as
2656 an unpredictable seed -- if it is not unpredictable, there
2657 is no point in blinding anyway). Make RSA blinding thread-safe
2658 by remembering the creator's thread ID in rsa->blinding and
2659 having all other threads use local one-time blinding factors
2660 (this requires more computation than sharing rsa->blinding, but
2661 avoids excessive locking; and if an RSA object is not shared
2662 between threads, blinding will still be very fast).
2665 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2666 ENGINE as defaults for all supported algorithms irrespective of
2667 the 'flags' parameter. 'flags' is now honoured, so applications
2668 should make sure they are passing it correctly.
2671 *) Target "mingw" now allows native Windows code to be generated in
2672 the Cygwin environment as well as with the MinGW compiler.
2675 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2677 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2678 via timing by performing a MAC computation even if incorrrect
2679 block cipher padding has been found. This is a countermeasure
2680 against active attacks where the attacker has to distinguish
2681 between bad padding and a MAC verification error. (CVE-2003-0078)
2683 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2684 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2685 Martin Vuagnoux (EPFL, Ilion)]
2687 *) Make the no-err option work as intended. The intention with no-err
2688 is not to have the whole error stack handling routines removed from
2689 libcrypto, it's only intended to remove all the function name and
2690 reason texts, thereby removing some of the footprint that may not
2691 be interesting if those errors aren't displayed anyway.
2693 NOTE: it's still possible for any application or module to have it's
2694 own set of error texts inserted. The routines are there, just not
2695 used by default when no-err is given.
2698 *) Add support for FreeBSD on IA64.
2699 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2701 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2702 Kerberos function mit_des_cbc_cksum(). Before this change,
2703 the value returned by DES_cbc_cksum() was like the one from
2704 mit_des_cbc_cksum(), except the bytes were swapped.
2705 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2707 *) Allow an application to disable the automatic SSL chain building.
2708 Before this a rather primitive chain build was always performed in
2709 ssl3_output_cert_chain(): an application had no way to send the
2710 correct chain if the automatic operation produced an incorrect result.
2712 Now the chain builder is disabled if either:
2714 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2716 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2718 The reasoning behind this is that an application would not want the
2719 auto chain building to take place if extra chain certificates are
2720 present and it might also want a means of sending no additional
2721 certificates (for example the chain has two certificates and the
2725 *) Add the possibility to build without the ENGINE framework.
2726 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2728 *) Under Win32 gmtime() can return NULL: check return value in
2729 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2732 *) DSA routines: under certain error conditions uninitialized BN objects
2733 could be freed. Solution: make sure initialization is performed early
2734 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2735 Nils Larsch <nla@trustcenter.de> via PR#459)
2738 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2739 checked on reconnect on the client side, therefore session resumption
2740 could still fail with a "ssl session id is different" error. This
2741 behaviour is masked when SSL_OP_ALL is used due to
2742 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2743 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2744 followup to PR #377.
2747 *) IA-32 assembler support enhancements: unified ELF targets, support
2748 for SCO/Caldera platforms, fix for Cygwin shared build.
2751 *) Add support for FreeBSD on sparc64. As a consequence, support for
2752 FreeBSD on non-x86 processors is separate from x86 processors on
2753 the config script, much like the NetBSD support.
2754 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2756 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2758 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2761 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2762 code (06) was taken as the first octet of the session ID and the last
2763 octet was ignored consequently. As a result SSLv2 client side session
2764 caching could not have worked due to the session ID mismatch between
2766 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2770 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2771 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2775 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2776 seems that in spite of existing for more than a year, many application
2777 author have done nothing to provide the necessary callbacks, which
2778 means that this particular engine will not work properly anywhere.
2779 This is a very unfortunate situation which forces us, in the name
2780 of usability, to give the hw_ncipher.c a static lock, which is part
2782 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2783 appear in 0.9.8 or later. We EXPECT application authors to have
2784 dealt properly with this when 0.9.8 is released (unless we actually
2785 make such changes in the libcrypto locking code that changes will
2786 have to be made anyway).
2789 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2790 octets have been read, EOF or an error occurs. Without this change
2791 some truncated ASN1 structures will not produce an error.
2794 *) Disable Heimdal support, since it hasn't been fully implemented.
2795 Still give the possibility to force the use of Heimdal, but with
2796 warnings and a request that patches get sent to openssl-dev.
2799 *) Add the VC-CE target, introduce the WINCE sysname, and add
2800 INSTALL.WCE and appropriate conditionals to make it build.
2801 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2803 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2804 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2805 edit numbers of the version.
2806 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2808 *) Introduce safe string copy and catenation functions
2809 (BUF_strlcpy() and BUF_strlcat()).
2810 [Ben Laurie (CHATS) and Richard Levitte]
2812 *) Avoid using fixed-size buffers for one-line DNs.
2813 [Ben Laurie (CHATS)]
2815 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2816 resizing buffers containing secrets, and use where appropriate.
2817 [Ben Laurie (CHATS)]
2819 *) Avoid using fixed size buffers for configuration file location.
2820 [Ben Laurie (CHATS)]
2822 *) Avoid filename truncation for various CA files.
2823 [Ben Laurie (CHATS)]
2825 *) Use sizeof in preference to magic numbers.
2826 [Ben Laurie (CHATS)]
2828 *) Avoid filename truncation in cert requests.
2829 [Ben Laurie (CHATS)]
2831 *) Add assertions to check for (supposedly impossible) buffer
2833 [Ben Laurie (CHATS)]
2835 *) Don't cache truncated DNS entries in the local cache (this could
2836 potentially lead to a spoofing attack).
2837 [Ben Laurie (CHATS)]
2839 *) Fix various buffers to be large enough for hex/decimal
2840 representations in a platform independent manner.
2841 [Ben Laurie (CHATS)]
2843 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2844 resizing buffers containing secrets, and use where appropriate.
2845 [Ben Laurie (CHATS)]
2847 *) Add BIO_indent() to avoid much slightly worrying code to do
2849 [Ben Laurie (CHATS)]
2851 *) Convert sprintf()/BIO_puts() to BIO_printf().
2852 [Ben Laurie (CHATS)]
2854 *) buffer_gets() could terminate with the buffer only half
2856 [Ben Laurie (CHATS)]
2858 *) Add assertions to prevent user-supplied crypto functions from
2859 overflowing internal buffers by having large block sizes, etc.
2860 [Ben Laurie (CHATS)]
2862 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2864 [Ben Laurie (CHATS)]
2866 *) Eliminate unused copy of key in RC4.
2867 [Ben Laurie (CHATS)]
2869 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2870 [Ben Laurie (CHATS)]
2872 *) Fix off-by-one error in EGD path.
2873 [Ben Laurie (CHATS)]
2875 *) If RANDFILE path is too long, ignore instead of truncating.
2876 [Ben Laurie (CHATS)]
2878 *) Eliminate unused and incorrectly sized X.509 structure
2880 [Ben Laurie (CHATS)]
2882 *) Eliminate unused and dangerous function knumber().
2883 [Ben Laurie (CHATS)]
2885 *) Eliminate unused and dangerous structure, KSSL_ERR.
2886 [Ben Laurie (CHATS)]
2888 *) Protect against overlong session ID context length in an encoded
2889 session object. Since these are local, this does not appear to be
2891 [Ben Laurie (CHATS)]
2893 *) Change from security patch (see 0.9.6e below) that did not affect
2894 the 0.9.6 release series:
2896 Remote buffer overflow in SSL3 protocol - an attacker could
2897 supply an oversized master key in Kerberos-enabled versions.
2899 [Ben Laurie (CHATS)]
2901 *) Change the SSL kerb5 codes to match RFC 2712.
2904 *) Make -nameopt work fully for req and add -reqopt switch.
2905 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2907 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2908 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2910 *) Make sure tests can be performed even if the corresponding algorithms
2911 have been removed entirely. This was also the last step to make
2912 OpenSSL compilable with DJGPP under all reasonable conditions.
2913 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2915 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2916 to allow version independent disabling of normally unselected ciphers,
2917 which may be activated as a side-effect of selecting a single cipher.
2919 (E.g., cipher list string "RSA" enables ciphersuites that are left
2920 out of "ALL" because they do not provide symmetric encryption.
2921 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2922 [Lutz Jaenicke, Bodo Moeller]
2924 *) Add appropriate support for separate platform-dependent build
2925 directories. The recommended way to make a platform-dependent
2926 build directory is the following (tested on Linux), maybe with
2929 # Place yourself outside of the OpenSSL source tree. In
2930 # this example, the environment variable OPENSSL_SOURCE
2931 # is assumed to contain the absolute OpenSSL source directory.
2932 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2933 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2934 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2935 mkdir -p `dirname $F`
2936 ln -s $OPENSSL_SOURCE/$F $F
2939 To be absolutely sure not to disturb the source tree, a "make clean"
2940 is a good thing. If it isn't successfull, don't worry about it,
2941 it probably means the source directory is very clean.
2944 *) Make sure any ENGINE control commands make local copies of string
2945 pointers passed to them whenever necessary. Otherwise it is possible
2946 the caller may have overwritten (or deallocated) the original string
2947 data when a later ENGINE operation tries to use the stored values.
2948 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2950 *) Improve diagnostics in file reading and command-line digests.
2951 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2953 *) Add AES modes CFB and OFB to the object database. Correct an
2954 error in AES-CFB decryption.
2957 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2958 allows existing EVP_CIPHER_CTX structures to be reused after
2959 calling EVP_*Final(). This behaviour is used by encryption
2960 BIOs and some applications. This has the side effect that
2961 applications must explicitly clean up cipher contexts with
2962 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2965 *) Check the values of dna and dnb in bn_mul_recursive before calling
2966 bn_mul_comba (a non zero value means the a or b arrays do not contain
2967 n2 elements) and fallback to bn_mul_normal if either is not zero.
2970 *) Fix escaping of non-ASCII characters when using the -subj option
2971 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2974 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2975 form for "surname", serialNumber has no short form.
2976 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2977 therefore remove "mail" short name for "internet 7".
2978 The OID for unique identifiers in X509 certificates is
2979 x500UniqueIdentifier, not uniqueIdentifier.
2980 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2983 *) Add an "init" command to the ENGINE config module and auto initialize
2984 ENGINEs. Without any "init" command the ENGINE will be initialized
2985 after all ctrl commands have been executed on it. If init=1 the
2986 ENGINE is initailized at that point (ctrls before that point are run
2987 on the uninitialized ENGINE and after on the initialized one). If
2988 init=0 then the ENGINE will not be iniatialized at all.
2991 *) Fix the 'app_verify_callback' interface so that the user-defined
2992 argument is actually passed to the callback: In the
2993 SSL_CTX_set_cert_verify_callback() prototype, the callback
2994 declaration has been changed from
2997 int (*cb)(X509_STORE_CTX *,void *);
2998 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2999 i=s->ctx->app_verify_callback(&ctx)
3000 has been changed into
3001 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3003 To update applications using SSL_CTX_set_cert_verify_callback(),
3004 a dummy argument can be added to their callback functions.
3005 [D. K. Smetters <smetters@parc.xerox.com>]
3007 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3008 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3010 *) Add and OPENSSL_LOAD_CONF define which will cause
3011 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3012 This allows older applications to transparently support certain
3013 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3014 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3015 load the config file and OPENSSL_add_all_algorithms_conf() which will
3016 always load it have also been added.
3019 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3020 Adjust NIDs and EVP layer.
3021 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3023 *) Config modules support in openssl utility.
3025 Most commands now load modules from the config file,
3026 though in a few (such as version) this isn't done
3027 because it couldn't be used for anything.
3029 In the case of ca and req the config file used is
3030 the same as the utility itself: that is the -config
3031 command line option can be used to specify an
3035 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3036 use "openssl_conf" if filename is NULL use default openssl config file.
3039 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3040 config section name. Add a new flag to tolerate a missing config file
3041 and move code to CONF_modules_load_file().
3044 *) Support for crypto accelerator cards from Accelerated Encryption
3045 Processing, www.aep.ie. (Use engine 'aep')
3046 The support was copied from 0.9.6c [engine] and adapted/corrected
3047 to work with the new engine framework.
3048 [AEP Inc. and Richard Levitte]
3050 *) Support for SureWare crypto accelerator cards from Baltimore
3051 Technologies. (Use engine 'sureware')
3052 The support was copied from 0.9.6c [engine] and adapted
3053 to work with the new engine framework.
3056 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3057 make the newer ENGINE framework commands for the CHIL engine work.
3058 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3060 *) Make it possible to produce shared libraries on ReliantUNIX.
3061 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3063 *) Add the configuration target debug-linux-ppro.
3064 Make 'openssl rsa' use the general key loading routines
3065 implemented in apps.c, and make those routines able to
3066 handle the key format FORMAT_NETSCAPE and the variant
3068 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3070 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3071 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3073 *) Add -keyform to rsautl, and document -engine.
3074 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3076 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3077 BIO_R_NO_SUCH_FILE error code rather than the generic
3078 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3081 *) Add new functions
3083 ERR_peek_last_error_line
3084 ERR_peek_last_error_line_data.
3085 These are similar to
3088 ERR_peek_error_line_data,
3089 but report on the latest error recorded rather than the first one
3090 still in the error queue.
3091 [Ben Laurie, Bodo Moeller]
3093 *) default_algorithms option in ENGINE config module. This allows things
3095 default_algorithms = ALL
3096 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3099 *) Prelminary ENGINE config module.
3102 *) New experimental application configuration code.
3105 *) Change the AES code to follow the same name structure as all other
3106 symmetric ciphers, and behave the same way. Move everything to
3107 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3108 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3110 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3111 [Ben Laurie and Theo de Raadt]
3113 *) Add option to output public keys in req command.
3114 [Massimiliano Pala madwolf@openca.org]
3116 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3117 (up to about 10% better than before for P-192 and P-224).
3120 *) New functions/macros
3122 SSL_CTX_set_msg_callback(ctx, cb)
3123 SSL_CTX_set_msg_callback_arg(ctx, arg)
3124 SSL_set_msg_callback(ssl, cb)
3125 SSL_set_msg_callback_arg(ssl, arg)
3127 to request calling a callback function
3129 void cb(int write_p, int version, int content_type,
3130 const void *buf, size_t len, SSL *ssl, void *arg)
3132 whenever a protocol message has been completely received
3133 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3134 protocol version according to which the SSL library interprets
3135 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3136 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3137 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3138 specification (change_cipher_spec(20), alert(21), handshake(22)).
3139 'buf' and 'len' point to the actual message, 'ssl' to the
3140 SSL object, and 'arg' is the application-defined value set by
3141 SSL[_CTX]_set_msg_callback_arg().
3143 'openssl s_client' and 'openssl s_server' have new '-msg' options
3144 to enable a callback that displays all protocol messages.
3147 *) Change the shared library support so shared libraries are built as
3148 soon as the corresponding static library is finished, and thereby get
3149 openssl and the test programs linked against the shared library.
3150 This still only happens when the keyword "shard" has been given to
3151 the configuration scripts.
3153 NOTE: shared library support is still an experimental thing, and
3154 backward binary compatibility is still not guaranteed.
3155 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3157 *) Add support for Subject Information Access extension.
3158 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3160 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3161 additional bytes when new memory had to be allocated, not just
3162 when reusing an existing buffer.
3165 *) New command line and configuration option 'utf8' for the req command.
3166 This allows field values to be specified as UTF8 strings.
3169 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3170 runs for the former and machine-readable output for the latter.
3173 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3174 of the e-mail address in the DN (i.e., it will go into a certificate
3175 extension only). The new configuration file option 'email_in_dn = no'
3176 has the same effect.
3177 [Massimiliano Pala madwolf@openca.org]
3179 *) Change all functions with names starting with des_ to be starting
3180 with DES_ instead. Add wrappers that are compatible with libdes,
3181 but are named _ossl_old_des_*. Finally, add macros that map the
3182 des_* symbols to the corresponding _ossl_old_des_* if libdes
3183 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3184 desired, the des_* symbols will be mapped to DES_*, with one
3187 Since we provide two compatibility mappings, the user needs to
3188 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3189 compatibility is desired. The default (i.e., when that macro
3190 isn't defined) is OpenSSL 0.9.6c compatibility.
3192 There are also macros that enable and disable the support of old
3193 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3194 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3195 are defined, the default will apply: to support the old des routines.
3197 In either case, one must include openssl/des.h to get the correct
3198 definitions. Do not try to just include openssl/des_old.h, that
3201 NOTE: This is a major break of an old API into a new one. Software
3202 authors are encouraged to switch to the DES_ style functions. Some
3203 time in the future, des_old.h and the libdes compatibility functions
3204 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3205 default), and then completely removed.
3208 *) Test for certificates which contain unsupported critical extensions.
3209 If such a certificate is found during a verify operation it is
3210 rejected by default: this behaviour can be overridden by either
3211 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3212 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3213 X509_supported_extension() has also been added which returns 1 if a
3214 particular extension is supported.
3217 *) Modify the behaviour of EVP cipher functions in similar way to digests
3218 to retain compatibility with existing code.
3221 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3222 compatibility with existing code. In particular the 'ctx' parameter does
3223 not have to be to be initialized before the call to EVP_DigestInit() and
3224 it is tidied up after a call to EVP_DigestFinal(). New function
3225 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3226 EVP_MD_CTX_copy() changed to not require the destination to be
3227 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3228 requires the destination to be valid.
3230 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3231 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3234 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3235 so that complete 'Handshake' protocol structures are kept in memory
3236 instead of overwriting 'msg_type' and 'length' with 'body' data.
3239 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3240 [Massimo Santin via Richard Levitte]
3242 *) Major restructuring to the underlying ENGINE code. This includes
3243 reduction of linker bloat, separation of pure "ENGINE" manipulation
3244 (initialisation, etc) from functionality dealing with implementations
3245 of specific crypto iterfaces. This change also introduces integrated
3246 support for symmetric ciphers and digest implementations - so ENGINEs
3247 can now accelerate these by providing EVP_CIPHER and EVP_MD
3248 implementations of their own. This is detailed in crypto/engine/README
3249 as it couldn't be adequately described here. However, there are a few
3250 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3251 were changed in the original introduction of ENGINE code have now
3252 reverted back - the hooking from this code to ENGINE is now a good
3253 deal more passive and at run-time, operations deal directly with
3254 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3255 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3256 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3257 they were not being used by the framework as there is no concept of a
3258 BIGNUM_METHOD and they could not be generalised to the new
3259 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3260 ENGINE_cpy() has been removed as it cannot be consistently defined in
3264 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3267 *) Change mkdef.pl to sort symbols that get the same entry number,
3268 and make sure the automatically generated functions ERR_load_*
3269 become part of libeay.num as well.
3272 *) New function SSL_renegotiate_pending(). This returns true once
3273 renegotiation has been requested (either SSL_renegotiate() call
3274 or HelloRequest/ClientHello receveived from the peer) and becomes
3275 false once a handshake has been completed.
3276 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3277 sends a HelloRequest, but does not ensure that a handshake takes
3278 place. SSL_renegotiate_pending() is useful for checking if the
3279 client has followed the request.)
3282 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3283 By default, clients may request session resumption even during
3284 renegotiation (if session ID contexts permit); with this option,
3285 session resumption is possible only in the first handshake.
3287 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3288 more bits available for options that should not be part of
3289 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3292 *) Add some demos for certificate and certificate request creation.
3295 *) Make maximum certificate chain size accepted from the peer application
3296 settable (SSL*_get/set_max_cert_list()), as proposed by
3297 "Douglas E. Engert" <deengert@anl.gov>.
3300 *) Add support for shared libraries for Unixware-7
3301 (Boyd Lynn Gerber <gerberb@zenez.com>).
3304 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3305 be done prior to destruction. Use this to unload error strings from
3306 ENGINEs that load their own error strings. NB: This adds two new API
3307 functions to "get" and "set" this destroy handler in an ENGINE.
3310 *) Alter all existing ENGINE implementations (except "openssl" and
3311 "openbsd") to dynamically instantiate their own error strings. This
3312 makes them more flexible to be built both as statically-linked ENGINEs
3313 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3314 Also, add stub code to each that makes building them as self-contained
3315 shared-libraries easier (see README.ENGINE).
3318 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3319 implementations into applications that are completely implemented in
3320 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3321 commands that can be used to configure what shared-library to load and
3322 to control aspects of the way it is handled. Also, made an update to
3323 the README.ENGINE file that brings its information up-to-date and
3324 provides some information and instructions on the "dynamic" ENGINE
3325 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3328 *) Make it possible to unload ranges of ERR strings with a new
3329 "ERR_unload_strings" function.
3332 *) Add a copy() function to EVP_MD.
3335 *) Make EVP_MD routines take a context pointer instead of just the
3336 md_data void pointer.
3339 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3340 that the digest can only process a single chunk of data
3341 (typically because it is provided by a piece of
3342 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3343 is only going to provide a single chunk of data, and hence the
3344 framework needn't accumulate the data for oneshot drivers.
3347 *) As with "ERR", make it possible to replace the underlying "ex_data"
3348 functions. This change also alters the storage and management of global
3349 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3350 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3351 index counters. The API functions that use this state have been changed
3352 to take a "class_index" rather than pointers to the class's local STACK
3353 and counter, and there is now an API function to dynamically create new
3354 classes. This centralisation allows us to (a) plug a lot of the
3355 thread-safety problems that existed, and (b) makes it possible to clean
3356 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3357 such data would previously have always leaked in application code and
3358 workarounds were in place to make the memory debugging turn a blind eye
3359 to it. Application code that doesn't use this new function will still
3360 leak as before, but their memory debugging output will announce it now
3361 rather than letting it slide.
3363 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3364 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3365 has a return value to indicate success or failure.
3368 *) Make it possible to replace the underlying "ERR" functions such that the
3369 global state (2 LHASH tables and 2 locks) is only used by the "default"
3370 implementation. This change also adds two functions to "get" and "set"
3371 the implementation prior to it being automatically set the first time
3372 any other ERR function takes place. Ie. an application can call "get",
3373 pass the return value to a module it has just loaded, and that module
3374 can call its own "set" function using that value. This means the
3375 module's "ERR" operations will use (and modify) the error state in the
3376 application and not in its own statically linked copy of OpenSSL code.
3379 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3380 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3381 the operation, and provides a more encapsulated way for external code
3382 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3383 to use these functions rather than manually incrementing the counts.
3385 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3388 *) Add EVP test program.
3391 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3394 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3395 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3396 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3397 These allow a CRL to be built without having to access X509_CRL fields
3398 directly. Modify 'ca' application to use new functions.
3401 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3402 bug workarounds. Rollback attack detection is a security feature.
3403 The problem will only arise on OpenSSL servers when TLSv1 is not
3404 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3405 Software authors not wanting to support TLSv1 will have special reasons
3406 for their choice and can explicitly enable this option.
3407 [Bodo Moeller, Lutz Jaenicke]
3409 *) Rationalise EVP so it can be extended: don't include a union of
3410 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3411 (similar to those existing for EVP_CIPHER_CTX).
3416 EVP_MD_CTX_init(&md); /* new function call */
3417 EVP_DigestInit(&md, EVP_sha1());
3418 EVP_DigestUpdate(&md, in, len);
3419 EVP_DigestFinal(&md, out, NULL);
3420 EVP_MD_CTX_cleanup(&md); /* new function call */
3424 *) Make DES key schedule conform to the usual scheme, as well as
3425 correcting its structure. This means that calls to DES functions
3426 now have to pass a pointer to a des_key_schedule instead of a
3427 plain des_key_schedule (which was actually always a pointer
3430 des_key_schedule ks;
3432 des_set_key_checked(..., &ks);
3433 des_ncbc_encrypt(..., &ks, ...);
3435 (Note that a later change renames 'des_...' into 'DES_...'.)
3438 *) Initial reduction of linker bloat: the use of some functions, such as
3439 PEM causes large amounts of unused functions to be linked in due to
3440 poor organisation. For example pem_all.c contains every PEM function
3441 which has a knock on effect of linking in large amounts of (unused)
3442 ASN1 code. Grouping together similar functions and splitting unrelated
3443 functions prevents this.
3446 *) Cleanup of EVP macros.
3449 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3450 correct _ecb suffix.
3453 *) Add initial OCSP responder support to ocsp application. The
3454 revocation information is handled using the text based index
3455 use by the ca application. The responder can either handle
3456 requests generated internally, supplied in files (for example
3457 via a CGI script) or using an internal minimal server.
3460 *) Add configuration choices to get zlib compression for TLS.
3463 *) Changes to Kerberos SSL for RFC 2712 compliance:
3464 1. Implemented real KerberosWrapper, instead of just using
3465 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3466 2. Implemented optional authenticator field of KerberosWrapper.
3468 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3469 and authenticator structs; see crypto/krb5/.
3471 Generalized Kerberos calls to support multiple Kerberos libraries.
3472 [Vern Staats <staatsvr@asc.hpc.mil>,
3473 Jeffrey Altman <jaltman@columbia.edu>
3474 via Richard Levitte]
3476 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3477 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3478 values for each of the key sizes rather than having just
3479 parameters (and 'speed' generating keys each time).
3482 *) Speed up EVP routines.
3485 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3486 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3487 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3488 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3490 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3491 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3492 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3495 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3497 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3500 *) Added the OS2-EMX target.
3501 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3503 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3504 to support NCONF routines in extension code. New function CONF_set_nconf()
3505 to allow functions which take an NCONF to also handle the old LHASH
3506 structure: this means that the old CONF compatible routines can be
3507 retained (in particular wrt extensions) without having to duplicate the
3508 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3511 *) Enhance the general user interface with mechanisms for inner control
3512 and with possibilities to have yes/no kind of prompts.
3515 *) Change all calls to low level digest routines in the library and
3516 applications to use EVP. Add missing calls to HMAC_cleanup() and
3517 don't assume HMAC_CTX can be copied using memcpy().
3518 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3520 *) Add the possibility to control engines through control names but with
3521 arbitrary arguments instead of just a string.
3522 Change the key loaders to take a UI_METHOD instead of a callback
3523 function pointer. NOTE: this breaks binary compatibility with earlier
3524 versions of OpenSSL [engine].
3525 Adapt the nCipher code for these new conditions and add a card insertion
3529 *) Enhance the general user interface with mechanisms to better support
3530 dialog box interfaces, application-defined prompts, the possibility
3531 to use defaults (for example default passwords from somewhere else)
3532 and interrupts/cancellations.
3535 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3536 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3539 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3540 tidy up some unnecessarily weird code in 'sk_new()').
3541 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3543 *) Change the key loading routines for ENGINEs to use the same kind
3544 callback (pem_password_cb) as all other routines that need this
3548 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3549 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3550 than this minimum value is recommended.
3553 *) New random seeder for OpenVMS, using the system process statistics
3554 that are easily reachable.
3557 *) Windows apparently can't transparently handle global
3558 variables defined in DLLs. Initialisations such as:
3560 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3562 wont compile. This is used by the any applications that need to
3563 declare their own ASN1 modules. This was fixed by adding the option
3564 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3565 needed for static libraries under Win32.
3568 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3569 setting of purpose and trust fields. New X509_STORE trust and
3570 purpose functions and tidy up setting in other SSL functions.
3573 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3574 structure. These are inherited by X509_STORE_CTX when it is
3575 initialised. This allows various defaults to be set in the
3576 X509_STORE structure (such as flags for CRL checking and custom
3577 purpose or trust settings) for functions which only use X509_STORE_CTX
3578 internally such as S/MIME.
3580 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3581 trust settings if they are not set in X509_STORE. This allows X509_STORE
3582 purposes and trust (in S/MIME for example) to override any set by default.
3584 Add command line options for CRL checking to smime, s_client and s_server
3588 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3589 are set then the CRL is looked up in the X509_STORE structure and
3590 its validity and signature checked, then if the certificate is found
3591 in the CRL the verify fails with a revoked error.
3593 Various new CRL related callbacks added to X509_STORE_CTX structure.
3595 Command line options added to 'verify' application to support this.
3597 This needs some additional work, such as being able to handle multiple
3598 CRLs with different times, extension based lookup (rather than just
3599 by subject name) and ultimately more complete V2 CRL extension
3603 *) Add a general user interface API (crypto/ui/). This is designed
3604 to replace things like des_read_password and friends (backward
3605 compatibility functions using this new API are provided).
3606 The purpose is to remove prompting functions from the DES code
3607 section as well as provide for prompting through dialog boxes in
3608 a window system and the like.
3611 *) Add "ex_data" support to ENGINE so implementations can add state at a
3612 per-structure level rather than having to store it globally.
3615 *) Make it possible for ENGINE structures to be copied when retrieved by
3616 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3617 This causes the "original" ENGINE structure to act like a template,
3618 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3619 operational state can be localised to each ENGINE structure, despite the
3620 fact they all share the same "methods". New ENGINE structures returned in
3621 this case have no functional references and the return value is the single
3622 structural reference. This matches the single structural reference returned
3623 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3627 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3628 needs to match any other type at all we need to manually clear the
3632 *) Changes to the "openssl engine" utility to include;
3633 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3634 about an ENGINE's available control commands.
3635 - executing control commands from command line arguments using the
3636 '-pre' and '-post' switches. '-post' is only used if '-t' is
3637 specified and the ENGINE is successfully initialised. The syntax for
3638 the individual commands are colon-separated, for example;
3639 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3642 *) New dynamic control command support for ENGINEs. ENGINEs can now
3643 declare their own commands (numbers), names (strings), descriptions,
3644 and input types for run-time discovery by calling applications. A
3645 subset of these commands are implicitly classed as "executable"
3646 depending on their input type, and only these can be invoked through
3647 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3648 can be based on user input, config files, etc). The distinction is
3649 that "executable" commands cannot return anything other than a boolean
3650 result and can only support numeric or string input, whereas some
3651 discoverable commands may only be for direct use through
3652 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3653 pointers, or other custom uses. The "executable" commands are to
3654 support parameterisations of ENGINE behaviour that can be
3655 unambiguously defined by ENGINEs and used consistently across any
3656 OpenSSL-based application. Commands have been added to all the
3657 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3658 control over shared-library paths without source code alterations.
3661 *) Changed all ENGINE implementations to dynamically allocate their
3662 ENGINEs rather than declaring them statically. Apart from this being
3663 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3664 this also allows the implementations to compile without using the
3665 internal engine_int.h header.
3668 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3669 'const' value. Any code that should be able to modify a RAND_METHOD
3670 should already have non-const pointers to it (ie. they should only
3671 modify their own ones).
3674 *) Made a variety of little tweaks to the ENGINE code.
3675 - "atalla" and "ubsec" string definitions were moved from header files
3676 to C code. "nuron" string definitions were placed in variables
3677 rather than hard-coded - allowing parameterisation of these values
3678 later on via ctrl() commands.
3679 - Removed unused "#if 0"'d code.
3680 - Fixed engine list iteration code so it uses ENGINE_free() to release
3681 structural references.
3682 - Constified the RAND_METHOD element of ENGINE structures.
3683 - Constified various get/set functions as appropriate and added
3684 missing functions (including a catch-all ENGINE_cpy that duplicates
3685 all ENGINE values onto a new ENGINE except reference counts/state).
3686 - Removed NULL parameter checks in get/set functions. Setting a method
3687 or function to NULL is a way of cancelling out a previously set
3688 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3689 and doesn't justify the extra error symbols and code.
3690 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3691 flags from engine_int.h to engine.h.
3692 - Changed prototypes for ENGINE handler functions (init(), finish(),
3693 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3696 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3697 to the algorithm using long division. The binary algorithm can be
3698 used only if the modulus is odd. On 32-bit systems, it is faster
3699 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3700 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3701 up to 450 bits. In 64-bit environments, the binary algorithm
3702 appears to be advantageous for much longer moduli; here we use it
3703 for moduli up to 2048 bits.
3706 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3707 could not support the combine flag in choice fields.
3710 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3711 extensions from a certificate request to the certificate.
3714 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3715 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3716 file: this allows the display of the certificate about to be
3717 signed to be customised, to allow certain fields to be included
3718 or excluded and extension details. The old system didn't display
3719 multicharacter strings properly, omitted fields not in the policy
3720 and couldn't display additional details such as extensions.
3723 *) Function EC_POINTs_mul for multiple scalar multiplication
3724 of an arbitrary number of elliptic curve points
3725 \sum scalars[i]*points[i],
3726 optionally including the generator defined for the EC_GROUP:
3727 scalar*generator + \sum scalars[i]*points[i].
3729 EC_POINT_mul is a simple wrapper function for the typical case
3730 that the point list has just one item (besides the optional
3734 *) First EC_METHODs for curves over GF(p):
3736 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3737 operations and provides various method functions that can also
3738 operate with faster implementations of modular arithmetic.
3740 EC_GFp_mont_method() reuses most functions that are part of
3741 EC_GFp_simple_method, but uses Montgomery arithmetic.
3743 [Bodo Moeller; point addition and point doubling
3744 implementation directly derived from source code provided by
3745 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3747 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3748 crypto/ec/ec_lib.c):
3750 Curves are EC_GROUP objects (with an optional group generator)
3751 based on EC_METHODs that are built into the library.
3753 Points are EC_POINT objects based on EC_GROUP objects.
3755 Most of the framework would be able to handle curves over arbitrary
3756 finite fields, but as there are no obvious types for fields other
3757 than GF(p), some functions are limited to that for now.
3760 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3761 that the file contains a complete HTTP response.
3764 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3765 change the def and num file printf format specifier from "%-40sXXX"
3766 to "%-39s XXX". The latter will always guarantee a space after the
3767 field while the former will cause them to run together if the field
3768 is 40 of more characters long.
3771 *) Constify the cipher and digest 'method' functions and structures
3772 and modify related functions to take constant EVP_MD and EVP_CIPHER
3776 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3777 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3780 *) Modify EVP_Digest*() routines so they now return values. Although the
3781 internal software routines can never fail additional hardware versions
3785 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3787 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3788 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3791 ERR_R_NESTED_ASN1_ERROR
3793 ERR_R_MISSING_ASN1_EOS
3794 were 4 .. 9, conflicting with
3795 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3797 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3798 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3800 Add new error code 'ERR_R_INTERNAL_ERROR'.
3803 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3807 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3808 sets the subject name for a new request or supersedes the
3809 subject name in a given request. Formats that can be parsed are
3810 'CN=Some Name, OU=myOU, C=IT'
3812 'CN=Some Name/OU=myOU/C=IT'.
3814 Add options '-batch' and '-verbose' to 'openssl req'.
3815 [Massimiliano Pala <madwolf@hackmasters.net>]
3817 *) Introduce the possibility to access global variables through
3818 functions on platform were that's the best way to handle exporting
3819 global variables in shared libraries. To enable this functionality,
3820 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3821 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3822 is normally done by Configure or something similar).
3824 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3825 in the source file (foo.c) like this:
3827 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3828 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3830 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3831 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3833 OPENSSL_DECLARE_GLOBAL(int,foo);
3834 #define foo OPENSSL_GLOBAL_REF(foo)
3835 OPENSSL_DECLARE_GLOBAL(double,bar);
3836 #define bar OPENSSL_GLOBAL_REF(bar)
3838 The #defines are very important, and therefore so is including the
3839 header file everywhere where the defined globals are used.
3841 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3842 of ASN.1 items, but that structure is a bit different.
3844 The largest change is in util/mkdef.pl which has been enhanced with
3845 better and easier to understand logic to choose which symbols should
3846 go into the Windows .def files as well as a number of fixes and code
3847 cleanup (among others, algorithm keywords are now sorted
3848 lexicographically to avoid constant rewrites).
3851 *) In BN_div() keep a copy of the sign of 'num' before writing the
3852 result to 'rm' because if rm==num the value will be overwritten
3853 and produce the wrong result if 'num' is negative: this caused
3854 problems with BN_mod() and BN_nnmod().
3857 *) Function OCSP_request_verify(). This checks the signature on an
3858 OCSP request and verifies the signer certificate. The signer
3859 certificate is just checked for a generic purpose and OCSP request
3863 *) Add OCSP_check_validity() function to check the validity of OCSP
3864 responses. OCSP responses are prepared in real time and may only
3865 be a few seconds old. Simply checking that the current time lies
3866 between thisUpdate and nextUpdate max reject otherwise valid responses
3867 caused by either OCSP responder or client clock inaccuracy. Instead
3868 we allow thisUpdate and nextUpdate to fall within a certain period of
3869 the current time. The age of the response can also optionally be
3870 checked. Two new options -validity_period and -status_age added to
3874 *) If signature or public key algorithm is unrecognized print out its
3875 OID rather that just UNKNOWN.
3878 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3879 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3880 ID to be generated from the issuer certificate alone which can then be
3881 passed to OCSP_id_issuer_cmp().
3884 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3885 ASN1 modules to export functions returning ASN1_ITEM pointers
3886 instead of the ASN1_ITEM structures themselves. This adds several
3887 new macros which allow the underlying ASN1 function/structure to
3888 be accessed transparently. As a result code should not use ASN1_ITEM
3889 references directly (such as &X509_it) but instead use the relevant
3890 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3891 use of the new ASN1 code on platforms where exporting structures
3892 is problematical (for example in shared libraries) but exporting
3893 functions returning pointers to structures is not.
3896 *) Add support for overriding the generation of SSL/TLS session IDs.
3897 These callbacks can be registered either in an SSL_CTX or per SSL.
3898 The purpose of this is to allow applications to control, if they wish,
3899 the arbitrary values chosen for use as session IDs, particularly as it
3900 can be useful for session caching in multiple-server environments. A
3901 command-line switch for testing this (and any client code that wishes
3902 to use such a feature) has been added to "s_server".
3903 [Geoff Thorpe, Lutz Jaenicke]
3905 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3906 of the form '#if defined(...) || defined(...) || ...' and
3907 '#if !defined(...) && !defined(...) && ...'. This also avoids
3908 the growing number of special cases it was previously handling.
3911 *) Make all configuration macros available for application by making
3912 sure they are available in opensslconf.h, by giving them names starting
3913 with "OPENSSL_" to avoid conflicts with other packages and by making
3914 sure e_os2.h will cover all platform-specific cases together with
3916 Additionally, it is now possible to define configuration/platform-
3917 specific names (called "system identities"). In the C code, these
3918 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3919 macro with the name beginning with "OPENSSL_SYS_", which is determined
3920 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3924 *) New option -set_serial to 'req' and 'x509' this allows the serial
3925 number to use to be specified on the command line. Previously self
3926 signed certificates were hard coded with serial number 0 and the
3927 CA options of 'x509' had to use a serial number in a file which was
3931 *) New options to 'ca' utility to support V2 CRL entry extensions.
3932 Currently CRL reason, invalidity date and hold instruction are
3933 supported. Add new CRL extensions to V3 code and some new objects.
3936 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3937 disable standard block padding (aka PKCS#5 padding) in the EVP
3938 API, which was previously mandatory. This means that the data is
3939 not padded in any way and so the total length much be a multiple
3940 of the block size, otherwise an error occurs.
3943 *) Initial (incomplete) OCSP SSL support.
3946 *) New function OCSP_parse_url(). This splits up a URL into its host,
3947 port and path components: primarily to parse OCSP URLs. New -url
3948 option to ocsp utility.
3951 *) New nonce behavior. The return value of OCSP_check_nonce() now
3952 reflects the various checks performed. Applications can decide
3953 whether to tolerate certain situations such as an absent nonce
3954 in a response when one was present in a request: the ocsp application
3955 just prints out a warning. New function OCSP_add1_basic_nonce()
3956 this is to allow responders to include a nonce in a response even if
3957 the request is nonce-less.
3960 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3961 skipped when using openssl x509 multiple times on a single input file,
3962 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3965 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3966 set string type: to handle setting ASN1_TIME structures. Fix ca
3967 utility to correctly initialize revocation date of CRLs.
3970 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3971 the clients preferred ciphersuites and rather use its own preferences.
3972 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3973 Internet Explorer by ensuring unchanged hash method during stepup.
3974 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3977 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3978 to aes and add a new 'exist' option to print out symbols that don't
3982 *) Additional options to ocsp utility to allow flags to be set and
3983 additional certificates supplied.
3986 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3987 OCSP client a number of certificate to only verify the response
3991 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3992 handle the new API. Currently only ECB, CBC modes supported. Add new
3995 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3996 Encryption Standard (AES) Ciphersuites for Transport Layer
3997 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3998 not enabled by default and were not part of the "ALL" ciphersuite
3999 alias because they were not yet official; they could be
4000 explicitly requested by specifying the "AESdraft" ciphersuite
4001 group alias. In the final release of OpenSSL 0.9.7, the group
4002 alias is called "AES" and is part of "ALL".)
4003 [Ben Laurie, Steve Henson, Bodo Moeller]
4005 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4006 request to response.
4009 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4010 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4011 extract information from a certificate request. OCSP_response_create()
4012 creates a response and optionally adds a basic response structure.
4013 OCSP_basic_add1_status() adds a complete single response to a basic
4014 response and returns the OCSP_SINGLERESP structure just added (to allow
4015 extensions to be included for example). OCSP_basic_add1_cert() adds a
4016 certificate to a basic response and OCSP_basic_sign() signs a basic
4017 response with various flags. New helper functions ASN1_TIME_check()
4018 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4019 (converts ASN1_TIME to GeneralizedTime).
4022 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4023 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4024 structure from a certificate. X509_pubkey_digest() digests the public_key
4025 contents: this is used in various key identifiers.
4028 *) Make sk_sort() tolerate a NULL argument.
4029 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4031 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4032 passed by the function are trusted implicitly. If any of them signed the
4033 response then it is assumed to be valid and is not verified.
4036 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4037 to data. This was previously part of the PKCS7 ASN1 code. This
4038 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4039 [Steve Henson, reported by Kenneth R. Robinette
4040 <support@securenetterm.com>]
4042 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4043 routines: without these tracing memory leaks is very painful.
4044 Fix leaks in PKCS12 and PKCS7 routines.
4047 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4048 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4049 effectively meant GeneralizedTime would never be used. Now it
4050 is initialised to -1 but X509_time_adj() now has to check the value
4051 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4052 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4053 [Steve Henson, reported by Kenneth R. Robinette
4054 <support@securenetterm.com>]
4056 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4057 result in a zero length in the ASN1_INTEGER structure which was
4058 not consistent with the structure when d2i_ASN1_INTEGER() was used
4059 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4060 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4061 where it did not print out a minus for negative ASN1_INTEGER.
4064 *) Add summary printout to ocsp utility. The various functions which
4065 convert status values to strings have been renamed to:
4066 OCSP_response_status_str(), OCSP_cert_status_str() and
4067 OCSP_crl_reason_str() and are no longer static. New options
4068 to verify nonce values and to disable verification. OCSP response
4069 printout format cleaned up.
4072 *) Add additional OCSP certificate checks. These are those specified
4073 in RFC2560. This consists of two separate checks: the CA of the
4074 certificate being checked must either be the OCSP signer certificate
4075 or the issuer of the OCSP signer certificate. In the latter case the
4076 OCSP signer certificate must contain the OCSP signing extended key
4077 usage. This check is performed by attempting to match the OCSP
4078 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4079 in the OCSP_CERTID structures of the response.
4082 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4083 and related routines. This uses the standard OpenSSL certificate
4084 verify routines to perform initial checks (just CA validity) and
4085 to obtain the certificate chain. Then additional checks will be
4086 performed on the chain. Currently the root CA is checked to see
4087 if it is explicitly trusted for OCSP signing. This is used to set
4088 a root CA as a global signing root: that is any certificate that
4089 chains to that CA is an acceptable OCSP signing certificate.
4092 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4093 extensions from a separate configuration file.
4094 As when reading extensions from the main configuration file,
4095 the '-extensions ...' option may be used for specifying the
4097 [Massimiliano Pala <madwolf@comune.modena.it>]
4099 *) New OCSP utility. Allows OCSP requests to be generated or
4100 read. The request can be sent to a responder and the output
4101 parsed, outputed or printed in text form. Not complete yet:
4102 still needs to check the OCSP response validity.
4105 *) New subcommands for 'openssl ca':
4106 'openssl ca -status <serial>' prints the status of the cert with
4107 the given serial number (according to the index file).
4108 'openssl ca -updatedb' updates the expiry status of certificates
4110 [Massimiliano Pala <madwolf@comune.modena.it>]
4112 *) New '-newreq-nodes' command option to CA.pl. This is like
4113 '-newreq', but calls 'openssl req' with the '-nodes' option
4114 so that the resulting key is not encrypted.
4115 [Damien Miller <djm@mindrot.org>]
4117 *) New configuration for the GNU Hurd.
4118 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4120 *) Initial code to implement OCSP basic response verify. This
4121 is currently incomplete. Currently just finds the signer's
4122 certificate and verifies the signature on the response.
4125 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4126 value of OPENSSLDIR. This is available via the new '-d' option
4127 to 'openssl version', and is also included in 'openssl version -a'.
4130 *) Allowing defining memory allocation callbacks that will be given
4131 file name and line number information in additional arguments
4132 (a const char* and an int). The basic functionality remains, as
4133 well as the original possibility to just replace malloc(),
4134 realloc() and free() by functions that do not know about these
4135 additional arguments. To register and find out the current
4136 settings for extended allocation functions, the following
4137 functions are provided:
4139 CRYPTO_set_mem_ex_functions
4140 CRYPTO_set_locked_mem_ex_functions
4141 CRYPTO_get_mem_ex_functions
4142 CRYPTO_get_locked_mem_ex_functions
4144 These work the same way as CRYPTO_set_mem_functions and friends.
4145 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4146 extended allocation function is enabled.
4147 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4148 a conventional allocation function is enabled.
4149 [Richard Levitte, Bodo Moeller]
4151 *) Finish off removing the remaining LHASH function pointer casts.
4152 There should no longer be any prototype-casting required when using
4153 the LHASH abstraction, and any casts that remain are "bugs". See
4154 the callback types and macros at the head of lhash.h for details
4155 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4158 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4159 If /dev/[u]random devices are not available or do not return enough
4160 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4162 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4163 /etc/entropy will be queried once each in this sequence, quering stops
4164 when enough entropy was collected without querying more sockets.
4167 *) Change the Unix RAND_poll() variant to be able to poll several
4168 random devices, as specified by DEVRANDOM, until a sufficient amount
4169 of data has been collected. We spend at most 10 ms on each file
4170 (select timeout) and read in non-blocking mode. DEVRANDOM now
4171 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4172 (previously it was just the string "/dev/urandom"), so on typical
4173 platforms the 10 ms delay will never occur.
4174 Also separate out the Unix variant to its own file, rand_unix.c.
4175 For VMS, there's a currently-empty rand_vms.c.
4178 *) Move OCSP client related routines to ocsp_cl.c. These
4179 provide utility functions which an application needing
4180 to issue a request to an OCSP responder and analyse the
4181 response will typically need: as opposed to those which an
4182 OCSP responder itself would need which will be added later.
4184 OCSP_request_sign() signs an OCSP request with an API similar
4185 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4186 response. OCSP_response_get1_basic() extracts basic response
4187 from response. OCSP_resp_find_status(): finds and extracts status
4188 information from an OCSP_CERTID structure (which will be created
4189 when the request structure is built). These are built from lower
4190 level functions which work on OCSP_SINGLERESP structures but
4191 wont normally be used unless the application wishes to examine
4192 extensions in the OCSP response for example.
4194 Replace nonce routines with a pair of functions.
4195 OCSP_request_add1_nonce() adds a nonce value and optionally
4196 generates a random value. OCSP_check_nonce() checks the
4197 validity of the nonce in an OCSP response.
4200 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4201 This doesn't copy the supplied OCSP_CERTID and avoids the
4202 need to free up the newly created id. Change return type
4203 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4204 This can then be used to add extensions to the request.
4205 Deleted OCSP_request_new(), since most of its functionality
4206 is now in OCSP_REQUEST_new() (and the case insensitive name
4207 clash) apart from the ability to set the request name which
4208 will be added elsewhere.
4211 *) Update OCSP API. Remove obsolete extensions argument from
4212 various functions. Extensions are now handled using the new
4213 OCSP extension code. New simple OCSP HTTP function which
4214 can be used to send requests and parse the response.
4217 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4218 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4219 uses the special reorder version of SET OF to sort the attributes
4220 and reorder them to match the encoded order. This resolves a long
4221 standing problem: a verify on a PKCS7 structure just after signing
4222 it used to fail because the attribute order did not match the
4223 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4224 it uses the received order. This is necessary to tolerate some broken
4225 software that does not order SET OF. This is handled by encoding
4226 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4227 to produce the required SET OF.
4230 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4231 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4232 files to get correct declarations of the ASN.1 item variables.
4235 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4236 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4237 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4238 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4239 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4240 ASN1_ITEM and no wrapper functions.
4243 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4244 replace the old function pointer based I/O routines. Change most of
4245 the *_d2i_bio() and *_d2i_fp() functions to use these.
4248 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4249 lines, recognice more "algorithms" that can be deselected, and make
4250 it complain about algorithm deselection that isn't recognised.
4253 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4254 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4255 to use new functions. Add NO_ASN1_OLD which can be set to remove
4256 some old style ASN1 functions: this can be used to determine if old
4257 code will still work when these eventually go away.
4260 *) New extension functions for OCSP structures, these follow the
4261 same conventions as certificates and CRLs.
4264 *) New function X509V3_add1_i2d(). This automatically encodes and
4265 adds an extension. Its behaviour can be customised with various
4266 flags to append, replace or delete. Various wrappers added for
4267 certifcates and CRLs.
4270 *) Fix to avoid calling the underlying ASN1 print routine when
4271 an extension cannot be parsed. Correct a typo in the
4272 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4275 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4276 entries for variables.
4279 *) Add functionality to apps/openssl.c for detecting locking
4280 problems: As the program is single-threaded, all we have
4281 to do is register a locking callback using an array for
4282 storing which locks are currently held by the program.
4285 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4286 SSL_get_ex_data_X509_STORE_idx(), which is used in
4287 ssl_verify_cert_chain() and thus can be called at any time
4288 during TLS/SSL handshakes so that thread-safety is essential.
4289 Unfortunately, the ex_data design is not at all suited
4290 for multi-threaded use, so it probably should be abolished.
4293 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4294 [Broadcom, tweaked and integrated by Geoff Thorpe]
4296 *) Move common extension printing code to new function
4297 X509V3_print_extensions(). Reorganise OCSP print routines and
4298 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4301 *) New function X509_signature_print() to remove duplication in some
4305 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4306 set (this was treated exactly the same as SET OF previously). This
4307 is used to reorder the STACK representing the structure to match the
4308 encoding. This will be used to get round a problem where a PKCS7
4309 structure which was signed could not be verified because the STACK
4310 order did not reflect the encoded order.
4313 *) Reimplement the OCSP ASN1 module using the new code.
4316 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4317 for its ASN1 operations. The old style function pointers still exist
4318 for now but they will eventually go away.
4321 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4322 completely replaces the old ASN1 functionality with a table driven
4323 encoder and decoder which interprets an ASN1_ITEM structure describing
4324 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4325 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4326 has also been converted to the new form.
4329 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4330 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4331 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4332 for negative moduli.
4335 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4336 of not touching the result's sign bit.
4339 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4343 *) Changed the LHASH code to use prototypes for callbacks, and created
4344 macros to declare and implement thin (optionally static) functions
4345 that provide type-safety and avoid function pointer casting for the
4346 type-specific callbacks.
4349 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4351 [Veers Staats <staatsvr@asc.hpc.mil>,
4352 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4354 *) Reformat the FAQ so the different questions and answers can be divided
4355 in sections depending on the subject.
4358 *) Have the zlib compression code load ZLIB.DLL dynamically under
projects / openssl.git / blob