5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Initial TLS v1.2 client support. Add a default signature algorithms
8 extension including all the algorithms we support. Parse new signature
9 format in client key exchange. Relax some ECC signing restrictions for
10 TLS v1.2 as indicated in RFC5246.
13 *) Add server support for TLS v1.2 signature algorithms extension. Switch
14 to new signature format when needed using client digest preference.
15 All server ciphersuites should now work correctly in TLS v1.2. No client
16 support yet and no support for client certificates.
19 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
20 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
21 ciphersuites. At present only RSA key exchange ciphersuites work with
22 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
23 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
27 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
28 with this defined it will not be affected by any changes to ssl internal
29 structures. Add several utility functions to allow openssl application
30 to work with OPENSSL_NO_SSL_INTERN defined.
33 *) Minor change to DRBG entropy callback semantics. In some cases
34 there is no mutiple of the block length between min_len and
35 max_len. Allow the callback to return more than max_len bytes
36 of entropy but discard any extra: it is the callback's responsibility
37 to ensure that the extra data discarded does not impact the
38 requested amount of entropy.
41 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
42 information in FIPS186-3, SP800-57 and SP800-131A.
45 *) CCM support via EVP. Interface is very similar to GCM case except we
46 must supply all data in one chunk (i.e. no update, final) and the
47 message length must be supplied if AAD is used. Add algorithm test
51 *) Initial version of POST overhaul. Add POST callback to allow the status
52 of POST to be monitored and/or failures induced. Modify fips_test_suite
53 to use callback. Always run all selftests even if one fails.
56 *) XTS support including algorithm test driver in the fips_gcmtest program.
57 Note: this does increase the maximum key length from 32 to 64 bytes but
58 there should be no binary compatibility issues as existing applications
59 will never use XTS mode.
62 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
63 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
64 performs algorithm blocking for unapproved PRNG types. Also do not
65 set PRNG type in FIPS_mode_set(): leave this to the application.
66 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
67 the standard OpenSSL PRNG: set additional data to a date time vector.
70 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
71 This shouldn't present any incompatibility problems because applications
72 shouldn't be using these directly and any that are will need to rethink
73 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
76 *) Extensive self tests and health checking required by SP800-90 DRBG.
77 Remove strength parameter from FIPS_drbg_instantiate and always
78 instantiate at maximum supported strength.
82 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
84 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
87 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
90 *) New function DH_compute_key_padded() to compute a DH key and pad with
91 leading zeroes if needed: this complies with SP800-56A et al.
94 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
95 anything, incomplete, subject to change and largely untested at present.
98 *) Modify fipscanisteronly build option to only build the necessary object
99 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
102 *) Add experimental option FIPSSYMS to give all symbols in
103 fipscanister.o and FIPS or fips prefix. This will avoid
104 conflicts with future versions of OpenSSL. Add perl script
105 util/fipsas.pl to preprocess assembly language source files
106 and rename any affected symbols.
109 *) Add selftest checks and algorithm block of non-fips algorithms in
110 FIPS mode. Remove DES2 from selftests.
113 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
114 return internal method without any ENGINE dependencies. Add new
115 tiny fips sign and verify functions.
118 *) New build option no-ec2m to disable characteristic 2 code.
121 *) New build option "fipscanisteronly". This only builds fipscanister.o
122 and (currently) associated fips utilities. Uses the file Makefile.fips
123 instead of Makefile.org as the prototype.
126 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
127 Update fips_gcmtest to use IV generator.
130 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
131 setting output buffer to NULL. The *Final function must be
132 called although it will not retrieve any additional data. The tag
133 can be set or retrieved with a ctrl. The IV length is by default 12
134 bytes (96 bits) but can be set to an alternative value. If the IV
135 length exceeds the maximum IV length (currently 16 bytes) it cannot be
139 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
140 underlying do_cipher function handles all cipher semantics itself
141 including padding and finalisation. This is useful if (for example)
142 an ENGINE cipher handles block padding itself. The behaviour of
143 do_cipher is subtly changed if this flag is set: the return value
144 is the number of characters written to the output buffer (zero is
145 no longer an error code) or a negative error code. Also if the
146 input buffer is NULL and length 0 finalisation should be performed.
149 *) If a candidate issuer certificate is already part of the constructed
150 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
153 *) Improve forward-security support: add functions
155 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
156 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
158 for use by SSL/TLS servers; the callback function will be called whenever a
159 new session is created, and gets to decide whether the session may be
160 cached to make it resumable (return 0) or not (return 1). (As by the
161 SSL/TLS protocol specifications, the session_id sent by the server will be
162 empty to indicate that the session is not resumable; also, the server will
163 not generate RFC 4507 (RFC 5077) session tickets.)
165 A simple reasonable callback implementation is to return is_forward_secure.
166 This parameter will be set to 1 or 0 depending on the ciphersuite selected
167 by the SSL/TLS server library, indicating whether it can provide forward
169 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
171 *) Add Next Protocol Negotiation,
172 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
173 disabled with a no-npn flag to config or Configure. Code donated
175 [Adam Langley <agl@google.com> and Ben Laurie]
177 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
178 all platforms. Move ssize_t definition from e_os.h to the public
179 header file e_os2.h as it now appears in public header file cms.h
182 *) New function OPENSSL_gmtime_diff to find the difference in days
183 and seconds between two tm structures. This will be used to provide
184 additional functionality for ASN1_TIME.
187 *) New -sigopt option to the ca, req and x509 utilities. Additional
188 signature parameters can be passed using this option and in
192 *) Add RSA PSS signing function. This will generate and set the
193 appropriate AlgorithmIdentifiers for PSS based on those in the
194 corresponding EVP_MD_CTX structure. No application support yet.
197 *) Support for companion algorithm specific ASN1 signing routines.
198 New function ASN1_item_sign_ctx() signs a pre-initialised
199 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
200 the appropriate parameters.
203 *) Add new algorithm specific ASN1 verification initialisation function
204 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
205 handling will be the same no matter what EVP_PKEY_METHOD is used.
206 Add a PSS handler to support verification of PSS signatures: checked
207 against a number of sample certificates.
210 *) Add signature printing for PSS. Add PSS OIDs.
211 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
213 *) Add algorithm specific signature printing. An individual ASN1 method
214 can now print out signatures instead of the standard hex dump.
216 More complex signatures (e.g. PSS) can print out more meaningful
217 information. Include DSA version that prints out the signature
221 *) Add -trusted_first option which attempts to find certificates in the
222 trusted store even if an untrusted chain is also supplied.
225 *) Initial experimental support for explicitly trusted non-root CAs.
226 OpenSSL still tries to build a complete chain to a root but if an
227 intermediate CA has a trust setting included that is used. The first
228 setting is used: whether to trust or reject.
231 *) New -verify_name option in command line utilities to set verification
235 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
236 Add CMAC pkey methods.
239 *) Experiemental regnegotiation in s_server -www mode. If the client
240 browses /reneg connection is renegotiated. If /renegcert it is
241 renegotiated requesting a certificate.
244 *) Add an "external" session cache for debugging purposes to s_server. This
245 should help trace issues which normally are only apparent in deployed
246 multi-process servers.
249 *) Experiemental password based recipient info support for CMS library:
250 implementing RFC3211.
253 *) Split password based encryption into PBES2 and PBKDF2 functions. This
254 neatly separates the code into cipher and PBE sections and is required
255 for some algorithms that split PBES2 into separate pieces (such as
259 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
260 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
261 BIO_set_cipher() and some obscure PEM functions were changed so they
262 can now return an error. The RAND changes required a change to the
263 RAND_METHOD structure.
266 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
267 a gcc attribute to warn if the result of a function is ignored. This
268 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
269 whose return value is often ignored.
272 Changes between 1.0.0d and 1.0.1 [xx XXX xxxx]
274 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
277 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
278 elliptic curve NIST-P224 with constant-time single point multiplication on
279 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
280 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
281 flexible implementations).
283 The implementation requires support for the nonstandard type __uint128_t,
284 and so is disabled by default. To include this in your build of OpenSSL,
285 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
286 and run "make depend" (or "make update").
287 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
289 *) Permit abbreviated handshakes when renegotiating using the function
290 SSL_renegotiate_abbreviated().
291 [Robin Seggelmann <seggelmann@fh-muenster.de>]
293 *) Add call to ENGINE_register_all_complete() to
294 ENGINE_load_builtin_engines(), so some implementations get used
295 automatically instead of needing explicit application support.
298 *) Add support for TLS key exporter as described in RFC5705.
299 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
301 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
302 a few changes are required:
304 Add SSL_OP_NO_TLSv1_1 flag.
306 Update version checking logic to handle version 1.1.
307 Add explicit IV handling (ported from DTLS code).
308 Add command line options to s_client/s_server.
311 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
313 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
314 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
316 *) Fix bug in string printing code: if *any* escaping is enabled we must
317 escape the escape character (backslash) or the resulting string is
321 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
323 *) Disable code workaround for ancient and obsolete Netscape browsers
324 and servers: an attacker can use it in a ciphersuite downgrade attack.
325 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
328 *) Fixed J-PAKE implementation error, originally discovered by
329 Sebastien Martini, further info and confirmation from Stefan
330 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
333 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
335 *) Fix extension code to avoid race conditions which can result in a buffer
336 overrun vulnerability: resumed sessions must not be modified as they can
337 be shared by multiple threads. CVE-2010-3864
340 *) Fix WIN32 build system to correctly link an ENGINE directory into
344 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
346 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
348 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
350 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
352 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
353 context. The operation can be customised via the ctrl mechanism in
354 case ENGINEs want to include additional functionality.
357 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
360 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
361 output hashes compatible with older versions of OpenSSL.
362 [Willy Weisz <weisz@vcpc.univie.ac.at>]
364 *) Fix compression algorithm handling: if resuming a session use the
365 compression algorithm of the resumed session instead of determining
366 it from client hello again. Don't allow server to change algorithm.
369 *) Add load_crls() function to apps tidying load_certs() too. Add option
370 to verify utility to allow additional CRLs to be included.
373 *) Update OCSP request code to permit adding custom headers to the request:
374 some responders need this.
377 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
379 [Julia Lawall <julia@diku.dk>]
381 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
382 needlessly dereferenced structures, used obsolete functions and
383 didn't handle all updated verify codes correctly.
386 *) Disable MD2 in the default configuration.
389 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
390 indicate the initial BIO being pushed or popped. This makes it possible
391 to determine whether the BIO is the one explicitly called or as a result
392 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
393 it handles reference counts correctly and doesn't zero out the I/O bio
394 when it is not being explicitly popped. WARNING: applications which
395 included workarounds for the old buggy behaviour will need to be modified
396 or they could free up already freed BIOs.
399 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
400 renaming to all platforms (within the 0.9.8 branch, this was
401 done conditionally on Netware platforms to avoid a name clash).
402 [Guenter <lists@gknw.net>]
404 *) Add ECDHE and PSK support to DTLS.
405 [Michael Tuexen <tuexen@fh-muenster.de>]
407 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
411 *) Add "missing" function EVP_MD_flags() (without this the only way to
412 retrieve a digest flags is by accessing the structure directly. Update
413 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
414 or cipher is registered as in the "from" argument. Print out all
415 registered digests in the dgst usage message instead of manually
416 attempting to work them out.
419 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
420 this allows the use of compression and extensions. Change default cipher
421 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
422 by default unless an application cipher string requests it.
425 *) Alter match criteria in PKCS12_parse(). It used to try to use local
426 key ids to find matching certificates and keys but some PKCS#12 files
427 don't follow the (somewhat unwritten) rules and this strategy fails.
428 Now just gather all certificates together and the first private key
429 then look for the first certificate that matches the key.
432 *) Support use of registered digest and cipher names for dgst and cipher
433 commands instead of having to add each one as a special case. So now
440 openssl dgst -sha256 foo
442 and this works for ENGINE based algorithms too.
446 *) Update Gost ENGINE to support parameter files.
447 [Victor B. Wagner <vitus@cryptocom.ru>]
449 *) Support GeneralizedTime in ca utility.
450 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
452 *) Enhance the hash format used for certificate directory links. The new
453 form uses the canonical encoding (meaning equivalent names will work
454 even if they aren't identical) and uses SHA1 instead of MD5. This form
455 is incompatible with the older format and as a result c_rehash should
456 be used to rebuild symbolic links.
459 *) Make PKCS#8 the default write format for private keys, replacing the
460 traditional format. This form is standardised, more secure and doesn't
461 include an implicit MD5 dependency.
464 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
465 committed to OpenSSL should pass this lot as a minimum.
468 *) Add session ticket override functionality for use by EAP-FAST.
469 [Jouni Malinen <j@w1.fi>]
471 *) Modify HMAC functions to return a value. Since these can be implemented
472 in an ENGINE errors can occur.
475 *) Type-checked OBJ_bsearch_ex.
478 *) Type-checked OBJ_bsearch. Also some constification necessitated
479 by type-checking. Still to come: TXT_DB, bsearch(?),
480 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
484 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
485 seconds to a tm structure directly, instead of going through OS
486 specific date routines. This avoids any issues with OS routines such
487 as the year 2038 bug. New *_adj() functions for ASN1 time structures
488 and X509_time_adj_ex() to cover the extended range. The existing
489 X509_time_adj() is still usable and will no longer have any date issues.
492 *) Delta CRL support. New use deltas option which will attempt to locate
493 and search any appropriate delta CRLs available.
495 This work was sponsored by Google.
498 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
499 code and add additional score elements. Validate alternate CRL paths
500 as part of the CRL checking and indicate a new error "CRL path validation
501 error" in this case. Applications wanting additional details can use
502 the verify callback and check the new "parent" field. If this is not
503 NULL CRL path validation is taking place. Existing applications wont
504 see this because it requires extended CRL support which is off by
507 This work was sponsored by Google.
510 *) Support for freshest CRL extension.
512 This work was sponsored by Google.
515 *) Initial indirect CRL support. Currently only supported in the CRLs
516 passed directly and not via lookup. Process certificate issuer
517 CRL entry extension and lookup CRL entries by bother issuer name
518 and serial number. Check and process CRL issuer entry in IDP extension.
520 This work was sponsored by Google.
523 *) Add support for distinct certificate and CRL paths. The CRL issuer
524 certificate is validated separately in this case. Only enabled if
525 an extended CRL support flag is set: this flag will enable additional
526 CRL functionality in future.
528 This work was sponsored by Google.
531 *) Add support for policy mappings extension.
533 This work was sponsored by Google.
536 *) Fixes to pathlength constraint, self issued certificate handling,
537 policy processing to align with RFC3280 and PKITS tests.
539 This work was sponsored by Google.
542 *) Support for name constraints certificate extension. DN, email, DNS
543 and URI types are currently supported.
545 This work was sponsored by Google.
548 *) To cater for systems that provide a pointer-based thread ID rather
549 than numeric, deprecate the current numeric thread ID mechanism and
550 replace it with a structure and associated callback type. This
551 mechanism allows a numeric "hash" to be extracted from a thread ID in
552 either case, and on platforms where pointers are larger than 'long',
553 mixing is done to help ensure the numeric 'hash' is usable even if it
554 can't be guaranteed unique. The default mechanism is to use "&errno"
555 as a pointer-based thread ID to distinguish between threads.
557 Applications that want to provide their own thread IDs should now use
558 CRYPTO_THREADID_set_callback() to register a callback that will call
559 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
561 Note that ERR_remove_state() is now deprecated, because it is tied
562 to the assumption that thread IDs are numeric. ERR_remove_state(0)
563 to free the current thread's error state should be replaced by
564 ERR_remove_thread_state(NULL).
566 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
567 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
568 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
569 application was previously providing a numeric thread callback that
570 was inappropriate for distinguishing threads, then uniqueness might
571 have been obtained with &errno that happened immediately in the
572 intermediate development versions of OpenSSL; this is no longer the
573 case, the numeric thread callback will now override the automatic use
575 [Geoff Thorpe, with help from Bodo Moeller]
577 *) Initial support for different CRL issuing certificates. This covers a
578 simple case where the self issued certificates in the chain exist and
579 the real CRL issuer is higher in the existing chain.
581 This work was sponsored by Google.
584 *) Removed effectively defunct crypto/store from the build.
587 *) Revamp of STACK to provide stronger type-checking. Still to come:
588 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
589 ASN1_STRING, CONF_VALUE.
592 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
593 RAM on SSL connections. This option can save about 34k per idle SSL.
596 *) Revamp of LHASH to provide stronger type-checking. Still to come:
597 STACK, TXT_DB, bsearch, qsort.
600 *) Initial support for Cryptographic Message Syntax (aka CMS) based
601 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
602 support for data, signedData, compressedData, digestedData and
603 encryptedData, envelopedData types included. Scripts to check against
604 RFC4134 examples draft and interop and consistency checks of many
605 content types and variants.
608 *) Add options to enc utility to support use of zlib compression BIO.
611 *) Extend mk1mf to support importing of options and assembly language
612 files from Configure script, currently only included in VC-WIN32.
613 The assembly language rules can now optionally generate the source
614 files from the associated perl scripts.
617 *) Implement remaining functionality needed to support GOST ciphersuites.
618 Interop testing has been performed using CryptoPro implementations.
619 [Victor B. Wagner <vitus@cryptocom.ru>]
621 *) s390x assembler pack.
624 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
628 *) Implement Opaque PRF Input TLS extension as specified in
629 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
630 official specification yet and no extension type assignment by
631 IANA exists, this extension (for now) will have to be explicitly
632 enabled when building OpenSSL by providing the extension number
633 to use. For example, specify an option
635 -DTLSEXT_TYPE_opaque_prf_input=0x9527
637 to the "config" or "Configure" script to enable the extension,
638 assuming extension number 0x9527 (which is a completely arbitrary
639 and unofficial assignment based on the MD5 hash of the Internet
640 Draft). Note that by doing so, you potentially lose
641 interoperability with other TLS implementations since these might
642 be using the same extension number for other purposes.
644 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
645 opaque PRF input value to use in the handshake. This will create
646 an interal copy of the length-'len' string at 'src', and will
647 return non-zero for success.
649 To get more control and flexibility, provide a callback function
652 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
653 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
657 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
660 Callback function 'cb' will be called in handshakes, and is
661 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
662 Argument 'arg' is for application purposes (the value as given to
663 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
664 be provided to the callback function). The callback function
665 has to return non-zero to report success: usually 1 to use opaque
666 PRF input just if possible, or 2 to enforce use of the opaque PRF
667 input. In the latter case, the library will abort the handshake
668 if opaque PRF input is not successfully negotiated.
670 Arguments 'peerinput' and 'len' given to the callback function
671 will always be NULL and 0 in the case of a client. A server will
672 see the client's opaque PRF input through these variables if
673 available (NULL and 0 otherwise). Note that if the server
674 provides an opaque PRF input, the length must be the same as the
675 length of the client's opaque PRF input.
677 Note that the callback function will only be called when creating
678 a new session (session resumption can resume whatever was
679 previously negotiated), and will not be called in SSL 2.0
680 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
681 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
682 for applications that need to enforce opaque PRF input.
686 *) Update ssl code to support digests other than SHA1+MD5 for handshake
689 [Victor B. Wagner <vitus@cryptocom.ru>]
691 *) Add RFC4507 support to OpenSSL. This includes the corrections in
692 RFC4507bis. The encrypted ticket format is an encrypted encoded
693 SSL_SESSION structure, that way new session features are automatically
696 If a client application caches session in an SSL_SESSION structure
697 support is transparent because tickets are now stored in the encoded
700 The SSL_CTX structure automatically generates keys for ticket
701 protection in servers so again support should be possible
702 with no application modification.
704 If a client or server wishes to disable RFC4507 support then the option
705 SSL_OP_NO_TICKET can be set.
707 Add a TLS extension debugging callback to allow the contents of any client
708 or server extensions to be examined.
710 This work was sponsored by Google.
713 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
714 OpenSSL should now compile cleanly on gcc 4.2
715 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
717 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
718 support including streaming MAC support: this is required for GOST
720 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
722 *) Add option -stream to use PKCS#7 streaming in smime utility. New
723 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
724 to output in BER and PEM format.
727 *) Experimental support for use of HMAC via EVP_PKEY interface. This
728 allows HMAC to be handled via the EVP_DigestSign*() interface. The
729 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
730 ENGINE support for HMAC keys which are unextractable. New -mac and
731 -macopt options to dgst utility.
734 *) New option -sigopt to dgst utility. Update dgst to use
735 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
736 alternative signing paramaters such as X9.31 or PSS in the dgst
740 *) Change ssl_cipher_apply_rule(), the internal function that does
741 the work each time a ciphersuite string requests enabling
742 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
743 removing ("!foo+bar") a class of ciphersuites: Now it maintains
744 the order of disabled ciphersuites such that those ciphersuites
745 that most recently went from enabled to disabled not only stay
746 in order with respect to each other, but also have higher priority
747 than other disabled ciphersuites the next time ciphersuites are
750 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
751 the same ciphersuites as with "HIGH" alone, but in a specific
752 order where the PSK ciphersuites come first (since they are the
753 most recently disabled ciphersuites when "HIGH" is parsed).
755 Also, change ssl_create_cipher_list() (using this new
756 funcionality) such that between otherwise identical
757 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
761 *) Change ssl_create_cipher_list() so that it automatically
762 arranges the ciphersuites in reasonable order before starting
763 to process the rule string. Thus, the definition for "DEFAULT"
764 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
765 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
766 This makes it much easier to arrive at a reasonable default order
767 in applications for which anonymous ciphers are OK (meaning
768 that you can't actually use DEFAULT).
769 [Bodo Moeller; suggested by Victor Duchovni]
771 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
772 processing) into multiple integers instead of setting
773 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
774 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
775 (These masks as well as the individual bit definitions are hidden
776 away into the non-exported interface ssl/ssl_locl.h, so this
777 change to the definition of the SSL_CIPHER structure shouldn't
778 affect applications.) This give us more bits for each of these
779 categories, so there is no longer a need to coagulate AES128 and
780 AES256 into a single algorithm bit, and to coagulate Camellia128
781 and Camellia256 into a single algorithm bit, which has led to all
784 Thus, among other things, the kludge introduced in 0.9.7m and
785 0.9.8e for masking out AES256 independently of AES128 or masking
786 out Camellia256 independently of AES256 is not needed here in 0.9.9.
788 With the change, we also introduce new ciphersuite aliases that
789 so far were missing: "AES128", "AES256", "CAMELLIA128", and
793 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
794 Use the leftmost N bytes of the signature input if the input is
795 larger than the prime q (with N being the size in bytes of q).
798 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
799 it yet and it is largely untested.
802 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
805 *) Initial incomplete changes to avoid need for function casts in OpenSSL
806 some compilers (gcc 4.2 and later) reject their use. Safestack is
807 reimplemented. Update ASN1 to avoid use of legacy functions.
810 *) Win32/64 targets are linked with Winsock2.
813 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
814 to external functions. This can be used to increase CRL handling
815 efficiency especially when CRLs are very large by (for example) storing
816 the CRL revoked certificates in a database.
819 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
820 new CRLs added to a directory can be used. New command line option
821 -verify_return_error to s_client and s_server. This causes real errors
822 to be returned by the verify callback instead of carrying on no matter
823 what. This reflects the way a "real world" verify callback would behave.
826 *) GOST engine, supporting several GOST algorithms and public key formats.
827 Kindly donated by Cryptocom.
830 *) Partial support for Issuing Distribution Point CRL extension. CRLs
831 partitioned by DP are handled but no indirect CRL or reason partitioning
832 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
833 selected via a scoring technique which handles IDP and AKID in CRLs.
836 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
837 will ultimately be used for all verify operations: this will remove the
838 X509_STORE dependency on certificate verification and allow alternative
839 lookup methods. X509_STORE based implementations of these two callbacks.
842 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
843 Modify get_crl() to find a valid (unexpired) CRL if possible.
846 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
847 this would be called X509_CRL_cmp() but that name is already used by
848 a function that just compares CRL issuer names. Cache several CRL
849 extensions in X509_CRL structure and cache CRLDP in X509.
852 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
853 this maps equivalent X509_NAME structures into a consistent structure.
854 Name comparison can then be performed rapidly using memcmp().
857 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
861 *) Allow digests to supply their own micalg string for S/MIME type using
862 the ctrl EVP_MD_CTRL_MICALG.
865 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
866 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
867 ctrl. It can then customise the structure before and/or after signing
871 *) New function OBJ_add_sigid() to allow application defined signature OIDs
872 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
873 to free up any added signature OIDs.
876 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
877 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
878 digest and cipher tables. New options added to openssl utility:
879 list-message-digest-algorithms and list-cipher-algorithms.
882 *) Change the array representation of binary polynomials: the list
883 of degrees of non-zero coefficients is now terminated with -1.
884 Previously it was terminated with 0, which was also part of the
885 value; thus, the array representation was not applicable to
886 polynomials where t^0 has coefficient zero. This change makes
887 the array representation useful in a more general context.
890 *) Various modifications and fixes to SSL/TLS cipher string
891 handling. For ECC, the code now distinguishes between fixed ECDH
892 with RSA certificates on the one hand and with ECDSA certificates
893 on the other hand, since these are separate ciphersuites. The
894 unused code for Fortezza ciphersuites has been removed.
896 For consistency with EDH, ephemeral ECDH is now called "EECDH"
897 (not "ECDHE"). For consistency with the code for DH
898 certificates, use of ECDH certificates is now considered ECDH
899 authentication, not RSA or ECDSA authentication (the latter is
900 merely the CA's signing algorithm and not actively used in the
903 The temporary ciphersuite alias "ECCdraft" is no longer
904 available, and ECC ciphersuites are no longer excluded from "ALL"
905 and "DEFAULT". The following aliases now exist for RFC 4492
906 ciphersuites, most of these by analogy with the DH case:
908 kECDHr - ECDH cert, signed with RSA
909 kECDHe - ECDH cert, signed with ECDSA
910 kECDH - ECDH cert (signed with either RSA or ECDSA)
911 kEECDH - ephemeral ECDH
912 ECDH - ECDH cert or ephemeral ECDH
918 AECDH - anonymous ECDH
919 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
923 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
924 Use correct micalg parameters depending on digest(s) in signed message.
927 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
928 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
931 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
932 an engine to register a method. Add ENGINE lookups for methods and
933 functional reference processing.
936 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
937 EVP_{Sign,Verify}* which allow an application to customise the signature
941 *) New -resign option to smime utility. This adds one or more signers
942 to an existing PKCS#7 signedData structure. Also -md option to use an
943 alternative message digest algorithm for signing.
946 *) Tidy up PKCS#7 routines and add new functions to make it easier to
947 create PKCS7 structures containing multiple signers. Update smime
948 application to support multiple signers.
951 *) New -macalg option to pkcs12 utility to allow setting of an alternative
955 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
956 Reorganize PBE internals to lookup from a static table using NIDs,
957 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
958 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
959 PRF which will be automatically used with PBES2.
962 *) Replace the algorithm specific calls to generate keys in "req" with the
966 *) Update PKCS#7 enveloped data routines to use new API. This is now
967 supported by any public key method supporting the encrypt operation. A
968 ctrl is added to allow the public key algorithm to examine or modify
969 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
973 *) Add a ctrl to asn1 method to allow a public key algorithm to express
974 a default digest type to use. In most cases this will be SHA1 but some
975 algorithms (such as GOST) need to specify an alternative digest. The
976 return value indicates how strong the prefernce is 1 means optional and
977 2 is mandatory (that is it is the only supported type). Modify
978 ASN1_item_sign() to accept a NULL digest argument to indicate it should
979 use the default md. Update openssl utilities to use the default digest
980 type for signing if it is not explicitly indicated.
983 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
984 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
985 signing method from the key type. This effectively removes the link
986 between digests and public key types.
989 *) Add an OID cross reference table and utility functions. Its purpose is to
990 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
991 rsaEncryption. This will allow some of the algorithm specific hackery
992 needed to use the correct OID to be removed.
995 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
996 structures for PKCS7_sign(). They are now set up by the relevant public
1000 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1003 *) Add support for key derivation (agreement) in the API, DH method and
1007 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1008 public and private key formats. As a side effect these add additional
1009 command line functionality not previously available: DSA signatures can be
1010 generated and verified using pkeyutl and DH key support and generation in
1015 [Oliver Tappe <zooey@hirschkaefer.de>]
1017 *) New make target "install_html_docs" installs HTML renditions of the
1019 [Oliver Tappe <zooey@hirschkaefer.de>]
1021 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1022 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1023 support key and parameter generation and add initial key generation
1024 functionality for RSA.
1027 *) Add functions for main EVP_PKEY_method operations. The undocumented
1028 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1029 EVP_PKEY_{encrypt,decrypt}_old.
1032 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1033 key API, doesn't do much yet.
1036 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1037 public key algorithms. New option to openssl utility:
1038 "list-public-key-algorithms" to print out info.
1041 *) Implement the Supported Elliptic Curves Extension for
1042 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1045 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1046 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1049 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1050 utilities such as rsa, dsa, dsaparam etc except they process any key
1054 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1055 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1056 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1060 *) Initial support for pluggable public key ASN1.
1061 De-spaghettify the public key ASN1 handling. Move public and private
1062 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1063 algorithm specific handling to a single module within the relevant
1064 algorithm directory. Add functions to allow (near) opaque processing
1065 of public and private key structures.
1068 *) Implement the Supported Point Formats Extension for
1069 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1072 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1073 for the psk identity [hint] and the psk callback functions to the
1074 SSL_SESSION, SSL and SSL_CTX structure.
1077 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1081 SSL_CTX_use_psk_identity_hint
1082 SSL_get_psk_identity_hint
1083 SSL_get_psk_identity
1084 SSL_use_psk_identity_hint
1086 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1088 *) Add RFC 3161 compliant time stamp request creation, response generation
1089 and response verification functionality.
1090 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1092 *) Add initial support for TLS extensions, specifically for the server_name
1093 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1094 have new members for a host name. The SSL data structure has an
1095 additional member SSL_CTX *initial_ctx so that new sessions can be
1096 stored in that context to allow for session resumption, even after the
1097 SSL has been switched to a new SSL_CTX in reaction to a client's
1098 server_name extension.
1100 New functions (subject to change):
1102 SSL_get_servername()
1103 SSL_get_servername_type()
1106 New CTRL codes and macros (subject to change):
1108 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1109 - SSL_CTX_set_tlsext_servername_callback()
1110 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1111 - SSL_CTX_set_tlsext_servername_arg()
1112 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1114 openssl s_client has a new '-servername ...' option.
1116 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1117 '-key2 ...', '-servername_fatal' (subject to change). This allows
1118 testing the HostName extension for a specific single host name ('-cert'
1119 and '-key' remain fallbacks for handshakes without HostName
1120 negotiation). If the unrecogninzed_name alert has to be sent, this by
1121 default is a warning; it becomes fatal with the '-servername_fatal'
1124 [Peter Sylvester, Remy Allais, Christophe Renou]
1126 *) Whirlpool hash implementation is added.
1129 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1130 bn(64,32). Because of instruction set limitations it doesn't have
1131 any negative impact on performance. This was done mostly in order
1132 to make it possible to share assembler modules, such as bn_mul_mont
1133 implementations, between 32- and 64-bit builds without hassle.
1136 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1137 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1141 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1142 dedicated Montgomery multiplication procedure, is introduced.
1143 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1144 "64-bit" performance on certain 32-bit targets.
1147 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1148 in SSL structures. New SSL ctrl to set maximum send fragment size.
1149 Save memory by seeting the I/O buffer sizes dynamically instead of
1150 using the maximum available value.
1153 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1154 in addition to the text details.
1157 *) Very, very preliminary EXPERIMENTAL support for printing of general
1158 ASN1 structures. This currently produces rather ugly output and doesn't
1159 handle several customised structures at all.
1162 *) Integrated support for PVK file format and some related formats such
1163 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1164 these in the 'rsa' and 'dsa' utilities.
1167 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1170 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1171 place for the (very old) "NETSCAPE" format certificates which are now
1172 handled using new ASN1 code equivalents.
1175 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1176 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1177 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1180 *) Modify CRL distribution points extension code to print out previously
1181 unsupported fields. Enhance extension setting code to allow setting of
1185 *) Add print and set support for Issuing Distribution Point CRL extension.
1188 *) Change 'Configure' script to enable Camellia by default.
1191 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1193 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1194 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1196 *) Fix bug in string printing code: if *any* escaping is enabled we must
1197 escape the escape character (backslash) or the resulting string is
1201 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1203 *) Disable code workaround for ancient and obsolete Netscape browsers
1204 and servers: an attacker can use it in a ciphersuite downgrade attack.
1205 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1208 *) Fixed J-PAKE implementation error, originally discovered by
1209 Sebastien Martini, further info and confirmation from Stefan
1210 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1213 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1215 *) Fix extension code to avoid race conditions which can result in a buffer
1216 overrun vulnerability: resumed sessions must not be modified as they can
1217 be shared by multiple threads. CVE-2010-3864
1220 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1223 *) Don't reencode certificate when calculating signature: cache and use
1224 the original encoding instead. This makes signature verification of
1225 some broken encodings work correctly.
1228 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1229 is also one of the inputs.
1230 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1232 *) Don't repeatedly append PBE algorithms to table if they already exist.
1233 Sort table on each new add. This effectively makes the table read only
1234 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1238 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1240 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1243 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1244 access or freeing data twice (CVE-2010-0742)
1245 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1247 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1248 common in certificates and some applications which only call
1249 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1253 Reduce copying into .apps and .test in makevms.com
1254 Don't try to use blank CA certificate in CA.com
1255 Allow use of C files from original directories in maketests.com
1256 [Steven M. Schweda" <sms@antinode.info>]
1258 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1260 *) When rejecting SSL/TLS records due to an incorrect version number, never
1261 update s->server with a new major version number. As of
1262 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1263 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1264 the previous behavior could result in a read attempt at NULL when
1265 receiving specific incorrect SSL/TLS records once record payload
1266 protection is active. (CVE-2010-0740)
1267 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1269 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1270 could be crashed if the relevant tables were not present (e.g. chrooted).
1271 [Tomas Hoger <thoger@redhat.com>]
1273 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1275 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1276 [Martin Olsson, Neel Mehta]
1278 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1279 accommodate for stack sorting, always a write lock!).
1282 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1283 excessive delays in the RAND_poll(): over a minute. As a workaround
1284 include a time check in the inner Heap32Next loop too.
1287 *) The code that handled flushing of data in SSL/TLS originally used the
1288 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1289 the problem outlined in PR#1949. The fix suggested there however can
1290 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1291 of Apache). So instead simplify the code to flush unconditionally.
1292 This should be fine since flushing with no data to flush is a no op.
1295 *) Handle TLS versions 2.0 and later properly and correctly use the
1296 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1297 off ancient servers have a habit of sticking around for a while...
1300 *) Modify compression code so it frees up structures without using the
1301 ex_data callbacks. This works around a problem where some applications
1302 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1303 restarting) then use compression (e.g. SSL with compression) later.
1304 This results in significant per-connection memory leaks and
1305 has caused some security issues including CVE-2008-1678 and
1309 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1310 change when encrypting or decrypting.
1313 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1314 connect and renegotiate with servers which do not support RI.
1315 Until RI is more widely deployed this option is enabled by default.
1318 *) Add "missing" ssl ctrls to clear options and mode.
1321 *) If client attempts to renegotiate and doesn't support RI respond with
1322 a no_renegotiation alert as required by RFC5746. Some renegotiating
1323 TLS clients will continue a connection gracefully when they receive
1324 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1325 waiting for a server hello which it will never receive. Now we treat a
1326 received no_renegotiation alert as a fatal error. This is because
1327 applications requesting a renegotiation might well expect it to succeed
1328 and would have no code in place to handle the server denying it so the
1329 only safe thing to do is to terminate the connection.
1332 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1333 peer supports secure renegotiation and 0 otherwise. Print out peer
1334 renegotiation support in s_client/s_server.
1337 *) Replace the highly broken and deprecated SPKAC certification method with
1338 the updated NID creation version. This should correctly handle UTF8.
1341 *) Implement RFC5746. Re-enable renegotiation but require the extension
1342 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1343 turns out to be a bad idea. It has been replaced by
1344 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1345 SSL_CTX_set_options(). This is really not recommended unless you
1346 know what you are doing.
1347 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1349 *) Fixes to stateless session resumption handling. Use initial_ctx when
1350 issuing and attempting to decrypt tickets in case it has changed during
1351 servername handling. Use a non-zero length session ID when attempting
1352 stateless session resumption: this makes it possible to determine if
1353 a resumption has occurred immediately after receiving server hello
1354 (several places in OpenSSL subtly assume this) instead of later in
1358 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1359 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1360 fixes for a few places where the return code is not checked
1362 [Julia Lawall <julia@diku.dk>]
1364 *) Add --strict-warnings option to Configure script to include devteam
1365 warnings in other configurations.
1368 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1369 makes it possible to install openssl libraries in locations which
1370 have names other than "lib", for example "/usr/lib64" which some
1372 [Steve Henson, based on patch from Jeremy Utley]
1374 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1375 X690 8.9.12 and can produce some misleading textual output of OIDs.
1376 [Steve Henson, reported by Dan Kaminsky]
1378 *) Delete MD2 from algorithm tables. This follows the recommendation in
1379 several standards that it is not used in new applications due to
1380 several cryptographic weaknesses. For binary compatibility reasons
1381 the MD2 API is still compiled in by default.
1384 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1388 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1389 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1391 [Guenter <lists@gknw.net>]
1393 *) Fix the server certificate chain building code to use X509_verify_cert(),
1394 it used to have an ad-hoc builder which was unable to cope with anything
1395 other than a simple chain.
1396 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1398 *) Don't check self signed certificate signatures in X509_verify_cert()
1399 by default (a flag can override this): it just wastes time without
1400 adding any security. As a useful side effect self signed root CAs
1401 with non-FIPS digests are now usable in FIPS mode.
1404 *) In dtls1_process_out_of_seq_message() the check if the current message
1405 is already buffered was missing. For every new message was memory
1406 allocated, allowing an attacker to perform an denial of service attack
1407 with sending out of seq handshake messages until there is no memory
1408 left. Additionally every future messege was buffered, even if the
1409 sequence number made no sense and would be part of another handshake.
1410 So only messages with sequence numbers less than 10 in advance will be
1411 buffered. (CVE-2009-1378)
1412 [Robin Seggelmann, discovered by Daniel Mentz]
1414 *) Records are buffered if they arrive with a future epoch to be
1415 processed after finishing the corresponding handshake. There is
1416 currently no limitation to this buffer allowing an attacker to perform
1417 a DOS attack with sending records with future epochs until there is no
1418 memory left. This patch adds the pqueue_size() function to detemine
1419 the size of a buffer and limits the record buffer to 100 entries.
1421 [Robin Seggelmann, discovered by Daniel Mentz]
1423 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1424 parent structure is freed. (CVE-2009-1379)
1427 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1428 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1431 [Ilya O. <vrghost@gmail.com>]
1433 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1435 *) Disable renegotiation completely - this fixes a severe security
1436 problem (CVE-2009-3555) at the cost of breaking all
1437 renegotiation. Renegotiation can be re-enabled by setting
1438 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1439 run-time. This is really not recommended unless you know what
1443 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1445 *) Don't set val to NULL when freeing up structures, it is freed up by
1446 underlying code. If sizeof(void *) > sizeof(long) this can result in
1447 zeroing past the valid field. (CVE-2009-0789)
1448 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1450 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1451 checked correctly. This would allow some invalid signed attributes to
1452 appear to verify correctly. (CVE-2009-0591)
1453 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1455 *) Reject UniversalString and BMPString types with invalid lengths. This
1456 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1457 a legal length. (CVE-2009-0590)
1460 *) Set S/MIME signing as the default purpose rather than setting it
1461 unconditionally. This allows applications to override it at the store
1465 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1466 to handle some structures.
1469 *) Improve efficiency of mem_gets: don't search whole buffer each time
1471 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1473 *) New -hex option for openssl rand.
1476 *) Print out UTF8String and NumericString when parsing ASN1.
1479 *) Support NumericString type for name components.
1482 *) Allow CC in the environment to override the automatically chosen
1483 compiler. Note that nothing is done to ensure flags work with the
1487 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1489 *) Properly check EVP_VerifyFinal() and similar return values
1491 [Ben Laurie, Bodo Moeller, Google Security Team]
1493 *) Enable TLS extensions by default.
1496 *) Allow the CHIL engine to be loaded, whether the application is
1497 multithreaded or not. (This does not release the developer from the
1498 obligation to set up the dynamic locking callbacks.)
1499 [Sander Temme <sander@temme.net>]
1501 *) Use correct exit code if there is an error in dgst command.
1502 [Steve Henson; problem pointed out by Roland Dirlewanger]
1504 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1505 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1508 *) Add experimental JPAKE support, including demo authentication in
1509 s_client and s_server.
1512 *) Set the comparison function in v3_addr_canonize().
1513 [Rob Austein <sra@hactrn.net>]
1515 *) Add support for XMPP STARTTLS in s_client.
1516 [Philip Paeps <philip@freebsd.org>]
1518 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1519 to ensure that even with this option, only ciphersuites in the
1520 server's preference list will be accepted. (Note that the option
1521 applies only when resuming a session, so the earlier behavior was
1522 just about the algorithm choice for symmetric cryptography.)
1525 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1527 *) Fix NULL pointer dereference if a DTLS server received
1528 ChangeCipherSpec as first record (CVE-2009-1386).
1531 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1532 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1535 *) The fix in 0.9.8c that supposedly got rid of unsafe
1536 double-checked locking was incomplete for RSA blinding,
1537 addressing just one layer of what turns out to have been
1538 doubly unsafe triple-checked locking.
1540 So now fix this for real by retiring the MONT_HELPER macro
1541 in crypto/rsa/rsa_eay.c.
1543 [Bodo Moeller; problem pointed out by Marius Schilder]
1545 *) Various precautionary measures:
1547 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1549 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1550 (NB: This would require knowledge of the secret session ticket key
1551 to exploit, in which case you'd be SOL either way.)
1553 - Change bn_nist.c so that it will properly handle input BIGNUMs
1554 outside the expected range.
1556 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1559 [Neel Mehta, Bodo Moeller]
1561 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1562 the load fails. Useful for distros.
1563 [Ben Laurie and the FreeBSD team]
1565 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1568 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1571 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1573 This work was sponsored by Logica.
1576 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1577 keystores. Support for SSL/TLS client authentication too.
1578 Not compiled unless enable-capieng specified to Configure.
1580 This work was sponsored by Logica.
1583 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1584 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1585 attribute creation routines such as certifcate requests and PKCS#12
1589 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1591 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1592 handshake which could lead to a cilent crash as found using the
1593 Codenomicon TLS test suite (CVE-2008-1672)
1594 [Steve Henson, Mark Cox]
1596 *) Fix double free in TLS server name extensions which could lead to
1597 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1600 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1602 Clear the error queue to ensure that error entries left from
1603 older function calls do not interfere with the correct operation.
1604 [Lutz Jaenicke, Erik de Castro Lopo]
1606 *) Remove root CA certificates of commercial CAs:
1608 The OpenSSL project does not recommend any specific CA and does not
1609 have any policy with respect to including or excluding any CA.
1610 Therefore it does not make any sense to ship an arbitrary selection
1611 of root CA certificates with the OpenSSL software.
1614 *) RSA OAEP patches to fix two separate invalid memory reads.
1615 The first one involves inputs when 'lzero' is greater than
1616 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1617 before the beginning of from). The second one involves inputs where
1618 the 'db' section contains nothing but zeroes (there is a one-byte
1619 invalid read after the end of 'db').
1620 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1622 *) Partial backport from 0.9.9-dev:
1624 Introduce bn_mul_mont (dedicated Montgomery multiplication
1625 procedure) as a candidate for BIGNUM assembler implementation.
1626 While 0.9.9-dev uses assembler for various architectures, only
1627 x86_64 is available by default here in the 0.9.8 branch, and
1628 32-bit x86 is available through a compile-time setting.
1630 To try the 32-bit x86 assembler implementation, use Configure
1631 option "enable-montasm" (which exists only for this backport).
1633 As "enable-montasm" for 32-bit x86 disclaims code stability
1634 anyway, in this constellation we activate additional code
1635 backported from 0.9.9-dev for further performance improvements,
1636 namely BN_from_montgomery_word. (To enable this otherwise,
1637 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1639 [Andy Polyakov (backport partially by Bodo Moeller)]
1641 *) Add TLS session ticket callback. This allows an application to set
1642 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1643 values. This is useful for key rollover for example where several key
1644 sets may exist with different names.
1647 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1648 This was broken until now in 0.9.8 releases, such that the only way
1649 a registered ENGINE could be used (assuming it initialises
1650 successfully on the host) was to explicitly set it as the default
1651 for the relevant algorithms. This is in contradiction with 0.9.7
1652 behaviour and the documentation. With this fix, when an ENGINE is
1653 registered into a given algorithm's table of implementations, the
1654 'uptodate' flag is reset so that auto-discovery will be used next
1655 time a new context for that algorithm attempts to select an
1657 [Ian Lister (tweaked by Geoff Thorpe)]
1659 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1660 implemention in the following ways:
1662 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1665 Lack of BER streaming support means one pass streaming processing is
1666 only supported if data is detached: setting the streaming flag is
1667 ignored for embedded content.
1669 CMS support is disabled by default and must be explicitly enabled
1670 with the enable-cms configuration option.
1673 *) Update the GMP engine glue to do direct copies between BIGNUM and
1674 mpz_t when openssl and GMP use the same limb size. Otherwise the
1675 existing "conversion via a text string export" trick is still used.
1676 [Paul Sheer <paulsheer@gmail.com>]
1678 *) Zlib compression BIO. This is a filter BIO which compressed and
1679 uncompresses any data passed through it.
1682 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1683 RFC3394 compatible AES key wrapping.
1686 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1687 sets string data without copying. X509_ALGOR_set0() and
1688 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1689 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1690 from an X509_ATTRIBUTE structure optionally checking it occurs only
1691 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1695 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1696 to get the expected BN_FLG_CONSTTIME behavior.
1697 [Bodo Moeller (Google)]
1701 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1702 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1703 - added some more tests to do_tests.pl
1704 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1705 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1706 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1707 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1708 - various changes to netware.pl to enable gcc-cross builds on Win32
1710 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1711 - various changes to fix missing prototype warnings
1712 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1713 - added AES, WHIRLPOOL and CPUID assembler code to build files
1714 - added missing AES assembler make rules to mk1mf.pl
1715 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1716 [Guenter Knauf <eflash@gmx.net>]
1718 *) Implement certificate status request TLS extension defined in RFC3546.
1719 A client can set the appropriate parameters and receive the encoded
1720 OCSP response via a callback. A server can query the supplied parameters
1721 and set the encoded OCSP response in the callback. Add simplified examples
1722 to s_client and s_server.
1725 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1727 *) Fix various bugs:
1728 + Binary incompatibility of ssl_ctx_st structure
1729 + DTLS interoperation with non-compliant servers
1730 + Don't call get_session_cb() without proposed session
1731 + Fix ia64 assembler code
1732 [Andy Polyakov, Steve Henson]
1734 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1736 *) DTLS Handshake overhaul. There were longstanding issues with
1737 OpenSSL DTLS implementation, which were making it impossible for
1738 RFC 4347 compliant client to communicate with OpenSSL server.
1739 Unfortunately just fixing these incompatibilities would "cut off"
1740 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1741 server keeps tolerating non RFC compliant syntax. The opposite is
1742 not true, 0.9.8f client can not communicate with earlier server.
1743 This update even addresses CVE-2007-4995.
1746 *) Changes to avoid need for function casts in OpenSSL: some compilers
1747 (gcc 4.2 and later) reject their use.
1748 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1751 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1752 RFC4507bis. The encrypted ticket format is an encrypted encoded
1753 SSL_SESSION structure, that way new session features are automatically
1756 If a client application caches session in an SSL_SESSION structure
1757 support is transparent because tickets are now stored in the encoded
1760 The SSL_CTX structure automatically generates keys for ticket
1761 protection in servers so again support should be possible
1762 with no application modification.
1764 If a client or server wishes to disable RFC4507 support then the option
1765 SSL_OP_NO_TICKET can be set.
1767 Add a TLS extension debugging callback to allow the contents of any client
1768 or server extensions to be examined.
1770 This work was sponsored by Google.
1773 *) Add initial support for TLS extensions, specifically for the server_name
1774 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1775 have new members for a host name. The SSL data structure has an
1776 additional member SSL_CTX *initial_ctx so that new sessions can be
1777 stored in that context to allow for session resumption, even after the
1778 SSL has been switched to a new SSL_CTX in reaction to a client's
1779 server_name extension.
1781 New functions (subject to change):
1783 SSL_get_servername()
1784 SSL_get_servername_type()
1787 New CTRL codes and macros (subject to change):
1789 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1790 - SSL_CTX_set_tlsext_servername_callback()
1791 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1792 - SSL_CTX_set_tlsext_servername_arg()
1793 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1795 openssl s_client has a new '-servername ...' option.
1797 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1798 '-key2 ...', '-servername_fatal' (subject to change). This allows
1799 testing the HostName extension for a specific single host name ('-cert'
1800 and '-key' remain fallbacks for handshakes without HostName
1801 negotiation). If the unrecogninzed_name alert has to be sent, this by
1802 default is a warning; it becomes fatal with the '-servername_fatal'
1805 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1807 *) Add AES and SSE2 assembly language support to VC++ build.
1810 *) Mitigate attack on final subtraction in Montgomery reduction.
1813 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1814 (which previously caused an internal error).
1817 *) Squeeze another 10% out of IGE mode when in != out.
1820 *) AES IGE mode speedup.
1821 [Dean Gaudet (Google)]
1823 *) Add the Korean symmetric 128-bit cipher SEED (see
1824 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1825 add SEED ciphersuites from RFC 4162:
1827 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1828 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1829 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1830 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1832 To minimize changes between patchlevels in the OpenSSL 0.9.8
1833 series, SEED remains excluded from compilation unless OpenSSL
1834 is configured with 'enable-seed'.
1835 [KISA, Bodo Moeller]
1837 *) Mitigate branch prediction attacks, which can be practical if a
1838 single processor is shared, allowing a spy process to extract
1839 information. For detailed background information, see
1840 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1841 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1842 and Necessary Software Countermeasures"). The core of the change
1843 are new versions BN_div_no_branch() and
1844 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1845 respectively, which are slower, but avoid the security-relevant
1846 conditional branches. These are automatically called by BN_div()
1847 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1848 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1849 remove a conditional branch.
1851 BN_FLG_CONSTTIME is the new name for the previous
1852 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1853 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1854 in the exponent causes BN_mod_exp_mont() to use the alternative
1855 implementation in BN_mod_exp_mont_consttime().) The old name
1856 remains as a deprecated alias.
1858 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1859 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1860 constant-time implementations for more than just exponentiation.
1861 Here too the old name is kept as a deprecated alias.
1863 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1864 the BN_BLINDING structure gets an independent copy of the
1865 modulus. This means that the previous "BIGNUM *m" argument to
1866 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1867 essentially becomes "const BIGNUM *m", although we can't actually
1868 change this in the header file before 0.9.9. It allows
1869 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1870 enable BN_FLG_CONSTTIME.
1872 [Matthew D Wood (Intel Corp)]
1874 *) In the SSL/TLS server implementation, be strict about session ID
1875 context matching (which matters if an application uses a single
1876 external cache for different purposes). Previously,
1877 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1878 set. This did ensure strict client verification, but meant that,
1879 with applications using a single external cache for quite
1880 different requirements, clients could circumvent ciphersuite
1881 restrictions for a given session ID context by starting a session
1882 in a different context.
1885 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1886 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1887 authentication-only ciphersuites.
1890 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1891 not complete and could lead to a possible single byte overflow
1892 (CVE-2007-5135) [Ben Laurie]
1894 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1896 *) Since AES128 and AES256 (and similarly Camellia128 and
1897 Camellia256) share a single mask bit in the logic of
1898 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1899 kludge to work properly if AES128 is available and AES256 isn't
1900 (or if Camellia128 is available and Camellia256 isn't).
1903 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1904 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1905 When a point or a seed is encoded in a BIT STRING, we need to
1906 prevent the removal of trailing zero bits to get the proper DER
1907 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1908 of a NamedBitList, for which trailing 0 bits need to be removed.)
1911 *) Have SSL/TLS server implementation tolerate "mismatched" record
1912 protocol version while receiving ClientHello even if the
1913 ClientHello is fragmented. (The server can't insist on the
1914 particular protocol version it has chosen before the ServerHello
1915 message has informed the client about his choice.)
1918 *) Add RFC 3779 support.
1919 [Rob Austein for ARIN, Ben Laurie]
1921 *) Load error codes if they are not already present instead of using a
1922 static variable. This allows them to be cleanly unloaded and reloaded.
1923 Improve header file function name parsing.
1926 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1927 or CAPABILITY handshake as required by RFCs.
1930 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1932 *) Introduce limits to prevent malicious keys being able to
1933 cause a denial of service. (CVE-2006-2940)
1934 [Steve Henson, Bodo Moeller]
1936 *) Fix ASN.1 parsing of certain invalid structures that can result
1937 in a denial of service. (CVE-2006-2937) [Steve Henson]
1939 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1940 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1942 *) Fix SSL client code which could crash if connecting to a
1943 malicious SSLv2 server. (CVE-2006-4343)
1944 [Tavis Ormandy and Will Drewry, Google Security Team]
1946 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1947 match only those. Before that, "AES256-SHA" would be interpreted
1948 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1949 the same strength classification in 0.9.7h) as we currently only
1950 have a single AES bit in the ciphersuite description bitmap.
1951 That change, however, also applied to ciphersuite strings such as
1952 "RC4-MD5" that intentionally matched multiple ciphersuites --
1953 namely, SSL 2.0 ciphersuites in addition to the more common ones
1954 from SSL 3.0/TLS 1.0.
1956 So we change the selection algorithm again: Naming an explicit
1957 ciphersuite selects this one ciphersuite, and any other similar
1958 ciphersuite (same bitmap) from *other* protocol versions.
1959 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1960 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1962 Since SSL 2.0 does not have any ciphersuites for which the
1963 128/256 bit distinction would be relevant, this works for now.
1964 The proper fix will be to use different bits for AES128 and
1965 AES256, which would have avoided the problems from the beginning;
1966 however, bits are scarce, so we can only do this in a new release
1967 (not just a patchlevel) when we can change the SSL_CIPHER
1968 definition to split the single 'unsigned long mask' bitmap into
1969 multiple values to extend the available space.
1973 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1975 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1976 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1978 *) Add AES IGE and biIGE modes.
1981 *) Change the Unix randomness entropy gathering to use poll() when
1982 possible instead of select(), since the latter has some
1983 undesirable limitations.
1984 [Darryl Miles via Richard Levitte and Bodo Moeller]
1986 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1987 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1988 cannot be implicitly activated as part of, e.g., the "AES" alias.
1989 However, please upgrade to OpenSSL 0.9.9[-dev] for
1990 non-experimental use of the ECC ciphersuites to get TLS extension
1991 support, which is required for curve and point format negotiation
1992 to avoid potential handshake problems.
1995 *) Disable rogue ciphersuites:
1997 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1998 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1999 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2001 The latter two were purportedly from
2002 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2005 Also deactivate the remaining ciphersuites from
2006 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2007 unofficial, and the ID has long expired.
2010 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2011 dual-core machines) and other potential thread-safety issues.
2014 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2015 versions), which is now available for royalty-free use
2016 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2017 Also, add Camellia TLS ciphersuites from RFC 4132.
2019 To minimize changes between patchlevels in the OpenSSL 0.9.8
2020 series, Camellia remains excluded from compilation unless OpenSSL
2021 is configured with 'enable-camellia'.
2024 *) Disable the padding bug check when compression is in use. The padding
2025 bug check assumes the first packet is of even length, this is not
2026 necessarily true if compresssion is enabled and can result in false
2027 positives causing handshake failure. The actual bug test is ancient
2028 code so it is hoped that implementations will either have fixed it by
2029 now or any which still have the bug do not support compression.
2032 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2034 *) When applying a cipher rule check to see if string match is an explicit
2035 cipher suite and only match that one cipher suite if it is.
2038 *) Link in manifests for VC++ if needed.
2039 [Austin Ziegler <halostatue@gmail.com>]
2041 *) Update support for ECC-based TLS ciphersuites according to
2042 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2043 TLS extensions, which are supported starting with the 0.9.9
2044 branch, not in the OpenSSL 0.9.8 branch).
2047 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2048 opaque EVP_CIPHER_CTX handling.
2051 *) Fixes and enhancements to zlib compression code. We now only use
2052 "zlib1.dll" and use the default __cdecl calling convention on Win32
2053 to conform with the standards mentioned here:
2054 http://www.zlib.net/DLL_FAQ.txt
2055 Static zlib linking now works on Windows and the new --with-zlib-include
2056 --with-zlib-lib options to Configure can be used to supply the location
2057 of the headers and library. Gracefully handle case where zlib library
2061 *) Several fixes and enhancements to the OID generation code. The old code
2062 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2063 handle numbers larger than ULONG_MAX, truncated printing and had a
2064 non standard OBJ_obj2txt() behaviour.
2067 *) Add support for building of engines under engine/ as shared libraries
2068 under VC++ build system.
2071 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2072 Hopefully, we will not see any false combination of paths any more.
2075 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2077 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2078 (part of SSL_OP_ALL). This option used to disable the
2079 countermeasure against man-in-the-middle protocol-version
2080 rollback in the SSL 2.0 server implementation, which is a bad
2081 idea. (CVE-2005-2969)
2083 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2084 for Information Security, National Institute of Advanced Industrial
2085 Science and Technology [AIST], Japan)]
2087 *) Add two function to clear and return the verify parameter flags.
2090 *) Keep cipherlists sorted in the source instead of sorting them at
2091 runtime, thus removing the need for a lock.
2094 *) Avoid some small subgroup attacks in Diffie-Hellman.
2095 [Nick Mathewson and Ben Laurie]
2097 *) Add functions for well-known primes.
2100 *) Extended Windows CE support.
2101 [Satoshi Nakamura and Andy Polyakov]
2103 *) Initialize SSL_METHOD structures at compile time instead of during
2104 runtime, thus removing the need for a lock.
2107 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2108 attempting to decrypt each encrypted key in turn. Add support to
2112 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2114 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2117 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2120 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2121 key into the same file any more.
2124 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2127 *) Add -utf8 command line and config file option to 'ca'.
2128 [Stefan <stf@udoma.org]
2130 *) Removed the macro des_crypt(), as it seems to conflict with some
2131 libraries. Use DES_crypt().
2134 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2135 involves renaming the source and generated shared-libs for
2136 both. The engines will accept the corrected or legacy ids
2137 ('ncipher' and '4758_cca' respectively) when binding. NB,
2138 this only applies when building 'shared'.
2139 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2141 *) Add attribute functions to EVP_PKEY structure. Modify
2142 PKCS12_create() to recognize a CSP name attribute and
2143 use it. Make -CSP option work again in pkcs12 utility.
2146 *) Add new functionality to the bn blinding code:
2147 - automatic re-creation of the BN_BLINDING parameters after
2148 a fixed number of uses (currently 32)
2149 - add new function for parameter creation
2150 - introduce flags to control the update behaviour of the
2151 BN_BLINDING parameters
2152 - hide BN_BLINDING structure
2153 Add a second BN_BLINDING slot to the RSA structure to improve
2154 performance when a single RSA object is shared among several
2158 *) Add support for DTLS.
2159 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2161 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2162 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2165 *) Remove buggy and incompletet DH cert support from
2166 ssl/ssl_rsa.c and ssl/s3_both.c
2169 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2170 the apps/openssl applications.
2173 *) Compile clean with "-Wall -Wmissing-prototypes
2174 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2175 DEBUG_SAFESTACK must also be set.
2178 *) Change ./Configure so that certain algorithms can be disabled by default.
2179 The new counterpiece to "no-xxx" is "enable-xxx".
2181 The patented RC5 and MDC2 algorithms will now be disabled unless
2182 "enable-rc5" and "enable-mdc2", respectively, are specified.
2184 (IDEA remains enabled despite being patented. This is because IDEA
2185 is frequently required for interoperability, and there is no license
2186 fee for non-commercial use. As before, "no-idea" can be used to
2187 avoid this algorithm.)
2191 *) Add processing of proxy certificates (see RFC 3820). This work was
2192 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2193 EGEE (Enabling Grids for E-science in Europe).
2196 *) RC4 performance overhaul on modern architectures/implementations, such
2197 as Intel P4, IA-64 and AMD64.
2200 *) New utility extract-section.pl. This can be used specify an alternative
2201 section number in a pod file instead of having to treat each file as
2202 a separate case in Makefile. This can be done by adding two lines to the
2205 =for comment openssl_section:XXX
2207 The blank line is mandatory.
2211 *) New arguments -certform, -keyform and -pass for s_client and s_server
2212 to allow alternative format key and certificate files and passphrase
2216 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2217 update associated structures and add various utility functions.
2219 Add new policy related verify parameters, include policy checking in
2220 standard verify code. Enhance 'smime' application with extra parameters
2221 to support policy checking and print out.
2224 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2225 Nehemiah processors. These extensions support AES encryption in hardware
2226 as well as RNG (though RNG support is currently disabled).
2227 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2229 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2232 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2233 [Andy Polyakov and a number of other people]
2235 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2236 implementation contributed by IBM.
2237 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2239 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2240 exponent rather than 'unsigned long'. There is a corresponding change to
2241 the new 'rsa_keygen' element of the RSA_METHOD structure.
2242 [Jelte Jansen, Geoff Thorpe]
2244 *) Functionality for creating the initial serial number file is now
2245 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2247 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2248 number file to 1, which is bound to cause problems. To avoid
2249 the problems while respecting compatibility between different 0.9.7
2250 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2251 CA.pl for serial number initialization. With the new release 0.9.8,
2252 we can fix the problem directly in the 'ca' utility.)
2255 *) Reduced header interdepencies by declaring more opaque objects in
2256 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2257 give fewer recursive includes, which could break lazy source code - so
2258 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2259 developers should define this symbol when building and using openssl to
2260 ensure they track the recommended behaviour, interfaces, [etc], but
2261 backwards-compatible behaviour prevails when this isn't defined.
2264 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2267 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2268 This will generate a random key of the appropriate length based on the
2269 cipher context. The EVP_CIPHER can provide its own random key generation
2270 routine to support keys of a specific form. This is used in the des and
2271 3des routines to generate a key of the correct parity. Update S/MIME
2272 code to use new functions and hence generate correct parity DES keys.
2273 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2274 valid (weak or incorrect parity).
2277 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2278 as looking them up. This is useful when the verified structure may contain
2279 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2280 present unless the new PKCS7_NO_CRL flag is asserted.
2283 *) Extend ASN1 oid configuration module. It now additionally accepts the
2286 shortName = some long name, 1.2.3.4
2289 *) Reimplemented the BN_CTX implementation. There is now no more static
2290 limitation on the number of variables it can handle nor the depth of the
2291 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2292 information can now expand as required, and rather than having a single
2293 static array of bignums, BN_CTX now uses a linked-list of such arrays
2294 allowing it to expand on demand whilst maintaining the usefulness of
2295 BN_CTX's "bundling".
2298 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2299 to allow all RSA operations to function using a single BN_CTX.
2302 *) Preliminary support for certificate policy evaluation and checking. This
2303 is initially intended to pass the tests outlined in "Conformance Testing
2304 of Relying Party Client Certificate Path Processing Logic" v1.07.
2307 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2308 remained unused and not that useful. A variety of other little bignum
2309 tweaks and fixes have also been made continuing on from the audit (see
2313 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2314 associated ASN1, EVP and SSL functions and old ASN1 macros.
2317 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2318 and this should never fail. So the return value from the use of
2319 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2320 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2323 *) BN_CTX_get() should return zero-valued bignums, providing the same
2324 initialised value as BN_new().
2325 [Geoff Thorpe, suggested by Ulf Möller]
2327 *) Support for inhibitAnyPolicy certificate extension.
2330 *) An audit of the BIGNUM code is underway, for which debugging code is
2331 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2332 is considered valid when processing BIGNUMs, and causes execution to
2333 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2334 further steps are taken to deliberately pollute unused data in BIGNUM
2335 structures to try and expose faulty code further on. For now, openssl will
2336 (in its default mode of operation) continue to tolerate the inconsistent
2337 forms that it has tolerated in the past, but authors and packagers should
2338 consider trying openssl and their own applications when compiled with
2339 these debugging symbols defined. It will help highlight potential bugs in
2340 their own code, and will improve the test coverage for OpenSSL itself. At
2341 some point, these tighter rules will become openssl's default to improve
2342 maintainability, though the assert()s and other overheads will remain only
2343 in debugging configurations. See bn.h for more details.
2344 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2346 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2347 that can only be obtained through BN_CTX_new() (which implicitly
2348 initialises it). The presence of this function only made it possible
2349 to overwrite an existing structure (and cause memory leaks).
2352 *) Because of the callback-based approach for implementing LHASH as a
2353 template type, lh_insert() adds opaque objects to hash-tables and
2354 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2355 to clean up those corresponding objects before destroying the hash table
2356 (and losing the object pointers). So some over-zealous constifications in
2357 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2358 objects as "const" and the lh_doall[_arg] callback wrappers are not
2359 prototyped to have "const" restrictions on the object pointers they are
2360 given (and so aren't required to cast them away any more).
2363 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2364 (speed) prefers to use its own implementation. The two implementations
2365 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2366 its object type properly exposed (MS_TM) instead of casting to/from "char
2367 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2368 aren't necessarily the greatest nomenclatures - but this is what was used
2369 internally to the implementation so I've used that for now.
2372 *) Ensure that deprecated functions do not get compiled when
2373 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2374 the self-tests were still using deprecated key-generation functions so
2375 these have been updated also.
2378 *) Reorganise PKCS#7 code to separate the digest location functionality
2379 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2380 New function PKCS7_set_digest() to set the digest type for PKCS#7
2381 digestedData type. Add additional code to correctly generate the
2382 digestedData type and add support for this type in PKCS7 initialization
2386 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2387 structure of type "other".
2390 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2391 sure the loop does correctly stop and breaking ("division by zero")
2392 modulus operations are not performed. The (pre-generated) prime
2393 table crypto/bn/bn_prime.h was already correct, but it could not be
2394 re-generated on some platforms because of the "division by zero"
2395 situation in the script.
2396 [Ralf S. Engelschall]
2398 *) Update support for ECC-based TLS ciphersuites according to
2399 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2400 SHA-1 now is only used for "small" curves (where the
2401 representation of a field element takes up to 24 bytes); for
2402 larger curves, the field element resulting from ECDH is directly
2403 used as premaster secret.
2404 [Douglas Stebila (Sun Microsystems Laboratories)]
2406 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2407 curve secp160r1 to the tests.
2408 [Douglas Stebila (Sun Microsystems Laboratories)]
2410 *) Add the possibility to load symbols globally with DSO.
2411 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2413 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2414 control of the error stack.
2417 *) Add support for STORE in ENGINE.
2420 *) Add the STORE type. The intention is to provide a common interface
2421 to certificate and key stores, be they simple file-based stores, or
2422 HSM-type store, or LDAP stores, or...
2423 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2426 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2427 pass a list of arguments to any function as well as provide a way
2428 for a function to pass data back to the caller.
2431 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2432 works like BUF_strdup() but can be used to duplicate a portion of
2433 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2437 *) Add the function sk_find_ex() which works like sk_find(), but will
2438 return an index to an element even if an exact match couldn't be
2439 found. The index is guaranteed to point at the element where the
2440 searched-for key would be inserted to preserve sorting order.
2443 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2444 takes an extra flags argument for optional functionality. Currently,
2445 the following flags are defined:
2447 OBJ_BSEARCH_VALUE_ON_NOMATCH
2448 This one gets OBJ_bsearch_ex() to return a pointer to the first
2449 element where the comparing function returns a negative or zero
2452 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2453 This one gets OBJ_bsearch_ex() to return a pointer to the first
2454 element where the comparing function returns zero. This is useful
2455 if there are more than one element where the comparing function
2459 *) Make it possible to create self-signed certificates with 'openssl ca'
2460 in such a way that the self-signed certificate becomes part of the
2461 CA database and uses the same mechanisms for serial number generation
2462 as all other certificate signing. The new flag '-selfsign' enables
2463 this functionality. Adapt CA.sh and CA.pl.in.
2466 *) Add functionality to check the public key of a certificate request
2467 against a given private. This is useful to check that a certificate
2468 request can be signed by that key (self-signing).
2471 *) Make it possible to have multiple active certificates with the same
2472 subject in the CA index file. This is done only if the keyword
2473 'unique_subject' is set to 'no' in the main CA section (default
2474 if 'CA_default') of the configuration file. The value is saved
2475 with the database itself in a separate index attribute file,
2476 named like the index file with '.attr' appended to the name.
2479 *) Generate muti valued AVAs using '+' notation in config files for
2483 *) Support for nameConstraints certificate extension.
2486 *) Support for policyConstraints certificate extension.
2489 *) Support for policyMappings certificate extension.
2492 *) Make sure the default DSA_METHOD implementation only uses its
2493 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2494 and change its own handlers to be NULL so as to remove unnecessary
2495 indirection. This lets alternative implementations fallback to the
2496 default implementation more easily.
2499 *) Support for directoryName in GeneralName related extensions
2503 *) Make it possible to link applications using Makefile.shared.
2504 Make that possible even when linking against static libraries!
2507 *) Support for single pass processing for S/MIME signing. This now
2508 means that S/MIME signing can be done from a pipe, in addition
2509 cleartext signing (multipart/signed type) is effectively streaming
2510 and the signed data does not need to be all held in memory.
2512 This is done with a new flag PKCS7_STREAM. When this flag is set
2513 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2514 is done after the data is output (and digests calculated) in
2515 SMIME_write_PKCS7().
2518 *) Add full support for -rpath/-R, both in shared libraries and
2519 applications, at least on the platforms where it's known how
2523 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2524 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2525 will now compute a table of multiples of the generator that
2526 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2527 faster (notably in the case of a single point multiplication,
2528 scalar * generator).
2529 [Nils Larsch, Bodo Moeller]
2531 *) IPv6 support for certificate extensions. The various extensions
2532 which use the IP:a.b.c.d can now take IPv6 addresses using the
2533 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2537 *) Added an ENGINE that implements RSA by performing private key
2538 exponentiations with the GMP library. The conversions to and from
2539 GMP's mpz_t format aren't optimised nor are any montgomery forms
2540 cached, and on x86 it appears OpenSSL's own performance has caught up.
2541 However there are likely to be other architectures where GMP could
2542 provide a boost. This ENGINE is not built in by default, but it can be
2543 specified at Configure time and should be accompanied by the necessary
2544 linker additions, eg;
2545 ./config -DOPENSSL_USE_GMP -lgmp
2548 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2549 testing availability of engines with "-t" - the old behaviour is
2550 produced by increasing the feature's verbosity with "-tt".
2553 *) ECDSA routines: under certain error conditions uninitialized BN objects
2554 could be freed. Solution: make sure initialization is performed early
2555 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2559 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2560 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2561 software implementations. For DSA and DH, parameter generation can
2562 also be overriden by providing the appropriate method callbacks.
2565 *) Change the "progress" mechanism used in key-generation and
2566 primality testing to functions that take a new BN_GENCB pointer in
2567 place of callback/argument pairs. The new API functions have "_ex"
2568 postfixes and the older functions are reimplemented as wrappers for
2569 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2570 declarations of the old functions to help (graceful) attempts to
2571 migrate to the new functions. Also, the new key-generation API
2572 functions operate on a caller-supplied key-structure and return
2573 success/failure rather than returning a key or NULL - this is to
2574 help make "keygen" another member function of RSA_METHOD etc.
2576 Example for using the new callback interface:
2578 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2582 BN_GENCB_set(&my_cb, my_callback, my_arg);
2584 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2585 /* For the meaning of a, b in calls to my_callback(), see the
2586 * documentation of the function that calls the callback.
2587 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2588 * my_callback should return 1 if it wants BN_is_prime_ex()
2589 * to continue, or 0 to stop.
2594 *) Change the ZLIB compression method to be stateful, and make it
2595 available to TLS with the number defined in
2596 draft-ietf-tls-compression-04.txt.
2599 *) Add the ASN.1 structures and functions for CertificatePair, which
2600 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2602 CertificatePair ::= SEQUENCE {
2603 forward [0] Certificate OPTIONAL,
2604 reverse [1] Certificate OPTIONAL,
2605 -- at least one of the pair shall be present -- }
2607 Also implement the PEM functions to read and write certificate
2608 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2610 This needed to be defined, mostly for the sake of the LDAP
2611 attribute crossCertificatePair, but may prove useful elsewhere as
2615 *) Make it possible to inhibit symlinking of shared libraries in
2616 Makefile.shared, for Cygwin's sake.
2619 *) Extend the BIGNUM API by creating a function
2620 void BN_set_negative(BIGNUM *a, int neg);
2621 and a macro that behave like
2622 int BN_is_negative(const BIGNUM *a);
2624 to avoid the need to access 'a->neg' directly in applications.
2627 *) Implement fast modular reduction for pseudo-Mersenne primes
2628 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2629 EC_GROUP_new_curve_GFp() will now automatically use this
2631 [Nils Larsch <nla@trustcenter.de>]
2633 *) Add new lock type (CRYPTO_LOCK_BN).
2636 *) Change the ENGINE framework to automatically load engines
2637 dynamically from specific directories unless they could be
2638 found to already be built in or loaded. Move all the
2639 current engines except for the cryptodev one to a new
2641 The engines in engines/ are built as shared libraries if
2642 the "shared" options was given to ./Configure or ./config.
2643 Otherwise, they are inserted in libcrypto.a.
2644 /usr/local/ssl/engines is the default directory for dynamic
2645 engines, but that can be overriden at configure time through
2646 the usual use of --prefix and/or --openssldir, and at run
2647 time with the environment variable OPENSSL_ENGINES.
2648 [Geoff Thorpe and Richard Levitte]
2650 *) Add Makefile.shared, a helper makefile to build shared
2651 libraries. Addapt Makefile.org.
2654 *) Add version info to Win32 DLLs.
2655 [Peter 'Luna' Runestig" <peter@runestig.com>]
2657 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2658 can be added using this API to created arbitrary PKCS#12
2659 files while avoiding the low level API.
2661 New options to PKCS12_create(), key or cert can be NULL and
2662 will then be omitted from the output file. The encryption
2663 algorithm NIDs can be set to -1 for no encryption, the mac
2664 iteration count can be set to 0 to omit the mac.
2666 Enhance pkcs12 utility by making the -nokeys and -nocerts
2667 options work when creating a PKCS#12 file. New option -nomac
2668 to omit the mac, NONE can be set for an encryption algorithm.
2669 New code is modified to use the enhanced PKCS12_create()
2670 instead of the low level API.
2673 *) Extend ASN1 encoder to support indefinite length constructed
2674 encoding. This can output sequences tags and octet strings in
2675 this form. Modify pk7_asn1.c to support indefinite length
2676 encoding. This is experimental and needs additional code to
2677 be useful, such as an ASN1 bio and some enhanced streaming
2680 Extend template encode functionality so that tagging is passed
2681 down to the template encoder.
2684 *) Let 'openssl req' fail if an argument to '-newkey' is not
2685 recognized instead of using RSA as a default.
2688 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2689 As these are not official, they are not included in "ALL";
2690 the "ECCdraft" ciphersuite group alias can be used to select them.
2691 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2693 *) Add ECDH engine support.
2694 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2696 *) Add ECDH in new directory crypto/ecdh/.
2697 [Douglas Stebila (Sun Microsystems Laboratories)]
2699 *) Let BN_rand_range() abort with an error after 100 iterations
2700 without success (which indicates a broken PRNG).
2703 *) Change BN_mod_sqrt() so that it verifies that the input value
2704 is really the square of the return value. (Previously,
2705 BN_mod_sqrt would show GIGO behaviour.)
2708 *) Add named elliptic curves over binary fields from X9.62, SECG,
2709 and WAP/WTLS; add OIDs that were still missing.
2711 [Sheueling Chang Shantz and Douglas Stebila
2712 (Sun Microsystems Laboratories)]
2714 *) Extend the EC library for elliptic curves over binary fields
2715 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2718 EC_GF2m_simple_method
2722 EC_GROUP_new_curve_GF2m
2723 EC_GROUP_set_curve_GF2m
2724 EC_GROUP_get_curve_GF2m
2725 EC_POINT_set_affine_coordinates_GF2m
2726 EC_POINT_get_affine_coordinates_GF2m
2727 EC_POINT_set_compressed_coordinates_GF2m
2729 Point compression for binary fields is disabled by default for
2730 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2733 As binary polynomials are represented as BIGNUMs, various members
2734 of the EC_GROUP and EC_POINT data structures can be shared
2735 between the implementations for prime fields and binary fields;
2736 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2737 are essentially identical to their ..._GFp counterparts.
2738 (For simplicity, the '..._GFp' prefix has been dropped from
2739 various internal method names.)
2741 An internal 'field_div' method (similar to 'field_mul' and
2742 'field_sqr') has been added; this is used only for binary fields.
2744 [Sheueling Chang Shantz and Douglas Stebila
2745 (Sun Microsystems Laboratories)]
2747 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2748 through methods ('mul', 'precompute_mult').
2750 The generic implementations (now internally called 'ec_wNAF_mul'
2751 and 'ec_wNAF_precomputed_mult') remain the default if these
2752 methods are undefined.
2754 [Sheueling Chang Shantz and Douglas Stebila
2755 (Sun Microsystems Laboratories)]
2757 *) New function EC_GROUP_get_degree, which is defined through
2758 EC_METHOD. For curves over prime fields, this returns the bit
2759 length of the modulus.
2761 [Sheueling Chang Shantz and Douglas Stebila
2762 (Sun Microsystems Laboratories)]
2764 *) New functions EC_GROUP_dup, EC_POINT_dup.
2765 (These simply call ..._new and ..._copy).
2767 [Sheueling Chang Shantz and Douglas Stebila
2768 (Sun Microsystems Laboratories)]
2770 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2771 Polynomials are represented as BIGNUMs (where the sign bit is not
2772 used) in the following functions [macros]:
2775 BN_GF2m_sub [= BN_GF2m_add]
2776 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2777 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2778 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2780 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2781 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2782 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2783 BN_GF2m_cmp [= BN_ucmp]
2785 (Note that only the 'mod' functions are actually for fields GF(2^m).
2786 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2788 For some functions, an the irreducible polynomial defining a
2789 field can be given as an 'unsigned int[]' with strictly
2790 decreasing elements giving the indices of those bits that are set;
2791 i.e., p[] represents the polynomial
2792 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2794 p[0] > p[1] > ... > p[k] = 0.
2795 This applies to the following functions:
2800 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2801 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2803 BN_GF2m_mod_sqrt_arr
2804 BN_GF2m_mod_solve_quad_arr
2808 Conversion can be performed by the following functions:
2813 bntest.c has additional tests for binary polynomial arithmetic.
2815 Two implementations for BN_GF2m_mod_div() are available.
2816 The default algorithm simply uses BN_GF2m_mod_inv() and
2817 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2818 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2819 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2821 [Sheueling Chang Shantz and Douglas Stebila
2822 (Sun Microsystems Laboratories)]
2824 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2825 functionality is disabled at compile-time.
2826 [Douglas Stebila <douglas.stebila@sun.com>]
2828 *) Change default behaviour of 'openssl asn1parse' so that more
2829 information is visible when viewing, e.g., a certificate:
2831 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2832 mode the content of non-printable OCTET STRINGs is output in a
2833 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2834 avoid the appearance of a printable string.
2835 [Nils Larsch <nla@trustcenter.de>]
2837 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2839 EC_GROUP_set_asn1_flag()
2840 EC_GROUP_get_asn1_flag()
2841 EC_GROUP_set_point_conversion_form()
2842 EC_GROUP_get_point_conversion_form()
2843 These control ASN1 encoding details:
2844 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2845 has been set to OPENSSL_EC_NAMED_CURVE.
2846 - Points are encoded in uncompressed form by default; options for
2847 asn1_for are as for point2oct, namely
2848 POINT_CONVERSION_COMPRESSED
2849 POINT_CONVERSION_UNCOMPRESSED
2850 POINT_CONVERSION_HYBRID
2852 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2855 EC_GROUP_get0_seed()
2856 EC_GROUP_get_seed_len()
2857 This is used only for ASN1 purposes (so far).
2858 [Nils Larsch <nla@trustcenter.de>]
2860 *) Add 'field_type' member to EC_METHOD, which holds the NID
2861 of the appropriate field type OID. The new function
2862 EC_METHOD_get_field_type() returns this value.
2863 [Nils Larsch <nla@trustcenter.de>]
2868 EC_POINT_point2hex()
2869 EC_POINT_hex2point()
2870 providing useful interfaces to EC_POINT_point2oct() and
2871 EC_POINT_oct2point().
2872 [Nils Larsch <nla@trustcenter.de>]
2874 *) Change internals of the EC library so that the functions
2875 EC_GROUP_set_generator()
2876 EC_GROUP_get_generator()
2877 EC_GROUP_get_order()
2878 EC_GROUP_get_cofactor()
2879 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2880 to methods, which would lead to unnecessary code duplication when
2881 adding different types of curves.
2882 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2884 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2885 arithmetic, and such that modified wNAFs are generated
2886 (which avoid length expansion in many cases).
2889 *) Add a function EC_GROUP_check_discriminant() (defined via
2890 EC_METHOD) that verifies that the curve discriminant is non-zero.
2892 Add a function EC_GROUP_check() that makes some sanity tests
2893 on a EC_GROUP, its generator and order. This includes
2894 EC_GROUP_check_discriminant().
2895 [Nils Larsch <nla@trustcenter.de>]
2897 *) Add ECDSA in new directory crypto/ecdsa/.
2899 Add applications 'openssl ecparam' and 'openssl ecdsa'
2900 (these are based on 'openssl dsaparam' and 'openssl dsa').
2902 ECDSA support is also included in various other files across the
2903 library. Most notably,
2904 - 'openssl req' now has a '-newkey ecdsa:file' option;
2905 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2906 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2907 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2908 them suitable for ECDSA where domain parameters must be
2909 extracted before the specific public key;
2910 - ECDSA engine support has been added.
2911 [Nils Larsch <nla@trustcenter.de>]
2913 *) Include some named elliptic curves, and add OIDs from X9.62,
2914 SECG, and WAP/WTLS. Each curve can be obtained from the new
2916 EC_GROUP_new_by_curve_name(),
2917 and the list of available named curves can be obtained with
2918 EC_get_builtin_curves().
2919 Also add a 'curve_name' member to EC_GROUP objects, which can be
2921 EC_GROUP_set_curve_name()
2922 EC_GROUP_get_curve_name()
2923 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2925 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2926 was actually never needed) and in BN_mul(). The removal in BN_mul()
2927 required a small change in bn_mul_part_recursive() and the addition
2928 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2929 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2930 bn_sub_words() and bn_add_words() except they take arrays with
2934 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2936 *) Cleanse PEM buffers before freeing them since they may contain
2938 [Benjamin Bennett <ben@psc.edu>]
2940 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2941 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2942 authentication-only ciphersuites.
2945 *) Since AES128 and AES256 share a single mask bit in the logic of
2946 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2947 kludge to work properly if AES128 is available and AES256 isn't.
2950 *) Expand security boundary to match 1.1.1 module.
2953 *) Remove redundant features: hash file source, editing of test vectors
2954 modify fipsld to use external fips_premain.c signature.
2957 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2958 run algorithm test programs.
2961 *) Make algorithm test programs more tolerant of whitespace.
2964 *) Have SSL/TLS server implementation tolerate "mismatched" record
2965 protocol version while receiving ClientHello even if the
2966 ClientHello is fragmented. (The server can't insist on the
2967 particular protocol version it has chosen before the ServerHello
2968 message has informed the client about his choice.)
2971 *) Load error codes if they are not already present instead of using a
2972 static variable. This allows them to be cleanly unloaded and reloaded.
2975 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2977 *) Introduce limits to prevent malicious keys being able to
2978 cause a denial of service. (CVE-2006-2940)
2979 [Steve Henson, Bodo Moeller]
2981 *) Fix ASN.1 parsing of certain invalid structures that can result
2982 in a denial of service. (CVE-2006-2937) [Steve Henson]
2984 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2985 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2987 *) Fix SSL client code which could crash if connecting to a
2988 malicious SSLv2 server. (CVE-2006-4343)
2989 [Tavis Ormandy and Will Drewry, Google Security Team]
2991 *) Change ciphersuite string processing so that an explicit
2992 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2993 will no longer include "AES128-SHA"), and any other similar
2994 ciphersuite (same bitmap) from *other* protocol versions (so that
2995 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2996 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2997 changes from 0.9.8b and 0.9.8d.
3000 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3002 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3003 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3005 *) Change the Unix randomness entropy gathering to use poll() when
3006 possible instead of select(), since the latter has some
3007 undesirable limitations.
3008 [Darryl Miles via Richard Levitte and Bodo Moeller]
3010 *) Disable rogue ciphersuites:
3012 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3013 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3014 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3016 The latter two were purportedly from
3017 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3020 Also deactive the remaining ciphersuites from
3021 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3022 unofficial, and the ID has long expired.
3025 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3026 dual-core machines) and other potential thread-safety issues.
3029 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3031 *) Adapt fipsld and the build system to link against the validated FIPS
3032 module in FIPS mode.
3035 *) Fixes for VC++ 2005 build under Windows.
3038 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3039 from a Windows bash shell such as MSYS. It is autodetected from the
3040 "config" script when run from a VC++ environment. Modify standard VC++
3041 build to use fipscanister.o from the GNU make build.
3044 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3046 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3047 The value now differs depending on if you build for FIPS or not.
3048 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3049 safely run with a non-FIPSed libcrypto, as it may crash because of
3050 the difference induced by this change.
3053 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3055 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3056 (part of SSL_OP_ALL). This option used to disable the
3057 countermeasure against man-in-the-middle protocol-version
3058 rollback in the SSL 2.0 server implementation, which is a bad
3059 idea. (CVE-2005-2969)
3061 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3062 for Information Security, National Institute of Advanced Industrial
3063 Science and Technology [AIST], Japan)]
3065 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3066 mainly for FIPS compliance and not fully integrated at this stage.
3069 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3070 the exponentiation using a fixed-length exponent. (Otherwise,
3071 the information leaked through timing could expose the secret key
3072 after many signatures; cf. Bleichenbacher's attack on DSA with
3076 *) Make a new fixed-window mod_exp implementation the default for
3077 RSA, DSA, and DH private-key operations so that the sequence of
3078 squares and multiplies and the memory access pattern are
3079 independent of the particular secret key. This will mitigate
3080 cache-timing and potential related attacks.
3082 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3083 and this is automatically used by BN_mod_exp_mont() if the new flag
3084 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3085 will use this BN flag for private exponents unless the flag
3086 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3087 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3089 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3091 *) Change the client implementation for SSLv23_method() and
3092 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3093 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3094 (Previously, the SSL 2.0 backwards compatible Client Hello
3095 message format would be used even with SSL_OP_NO_SSLv2.)
3098 *) Add support for smime-type MIME parameter in S/MIME messages which some
3102 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3103 a threadsafe manner. Modify rsa code to use new function and add calls
3104 to dsa and dh code (which had race conditions before).
3107 *) Include the fixed error library code in the C error file definitions
3108 instead of fixing them up at runtime. This keeps the error code
3109 structures constant.
3112 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3114 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3117 *) Fixes for newer kerberos headers. NB: the casts are needed because
3118 the 'length' field is signed on one version and unsigned on another
3119 with no (?) obvious way to tell the difference, without these VC++
3120 complains. Also the "definition" of FAR (blank) is no longer included
3121 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3122 some needed definitions.
3125 *) Undo Cygwin change.
3128 *) Added support for proxy certificates according to RFC 3820.
3129 Because they may be a security thread to unaware applications,
3130 they must be explicitely allowed in run-time. See
3131 docs/HOWTO/proxy_certificates.txt for further information.
3134 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3136 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3137 server and client random values. Previously
3138 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3139 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3141 This change has negligible security impact because:
3143 1. Server and client random values still have 24 bytes of pseudo random
3146 2. Server and client random values are sent in the clear in the initial
3149 3. The master secret is derived using the premaster secret (48 bytes in
3150 size for static RSA ciphersuites) as well as client server and random
3153 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3156 [Stephen Henson, reported by UK NISCC]
3158 *) Use Windows randomness collection on Cygwin.
3161 *) Fix hang in EGD/PRNGD query when communication socket is closed
3162 prematurely by EGD/PRNGD.
3163 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3165 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3168 *) Back-port of selected performance improvements from development
3169 branch, as well as improved support for PowerPC platforms.
3172 *) Add lots of checks for memory allocation failure, error codes to indicate
3173 failure and freeing up memory if a failure occurs.
3174 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3176 *) Add new -passin argument to dgst.
3179 *) Perform some character comparisons of different types in X509_NAME_cmp:
3180 this is needed for some certificates that reencode DNs into UTF8Strings
3181 (in violation of RFC3280) and can't or wont issue name rollover
3185 *) Make an explicit check during certificate validation to see that
3186 the CA setting in each certificate on the chain is correct. As a
3187 side effect always do the following basic checks on extensions,
3188 not just when there's an associated purpose to the check:
3190 - if there is an unhandled critical extension (unless the user
3191 has chosen to ignore this fault)
3192 - if the path length has been exceeded (if one is set at all)
3193 - that certain extensions fit the associated purpose (if one has
3197 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3199 *) Avoid a race condition when CRLs are checked in a multi threaded
3200 environment. This would happen due to the reordering of the revoked
3201 entries during signature checking and serial number lookup. Now the
3202 encoding is cached and the serial number sort performed under a lock.
3203 Add new STACK function sk_is_sorted().
3206 *) Add Delta CRL to the extension code.
3209 *) Various fixes to s3_pkt.c so alerts are sent properly.
3210 [David Holmes <d.holmes@f5.com>]
3212 *) Reduce the chances of duplicate issuer name and serial numbers (in
3213 violation of RFC3280) using the OpenSSL certificate creation utilities.
3214 This is done by creating a random 64 bit value for the initial serial
3215 number when a serial number file is created or when a self signed
3216 certificate is created using 'openssl req -x509'. The initial serial
3217 number file is created using 'openssl x509 -next_serial' in CA.pl
3218 rather than being initialized to 1.
3221 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3223 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3224 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3225 [Joe Orton, Steve Henson]
3227 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3229 [Joe Orton, Steve Henson]
3231 *) Make it possible to have multiple active certificates with the same
3232 subject in the CA index file. This is done only if the keyword
3233 'unique_subject' is set to 'no' in the main CA section (default
3234 if 'CA_default') of the configuration file. The value is saved
3235 with the database itself in a separate index attribute file,
3236 named like the index file with '.attr' appended to the name.
3239 *) X509 verify fixes. Disable broken certificate workarounds when
3240 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3241 keyUsage extension present. Don't accept CRLs with unhandled critical
3242 extensions: since verify currently doesn't process CRL extensions this
3243 rejects a CRL with *any* critical extensions. Add new verify error codes
3247 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3248 A clarification of RFC2560 will require the use of OCTET STRINGs and
3249 some implementations cannot handle the current raw format. Since OpenSSL
3250 copies and compares OCSP nonces as opaque blobs without any attempt at
3251 parsing them this should not create any compatibility issues.
3254 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3255 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3256 this HMAC (and other) operations are several times slower than OpenSSL
3260 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3261 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3263 *) Use the correct content when signing type "other".
3266 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3268 *) Fix various bugs revealed by running the NISCC test suite:
3270 Stop out of bounds reads in the ASN1 code when presented with
3271 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3273 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3275 If verify callback ignores invalid public key errors don't try to check
3276 certificate signature with the NULL public key.
3280 *) New -ignore_err option in ocsp application to stop the server
3281 exiting on the first error in a request.
3284 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3285 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3289 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3290 extra data after the compression methods not only for TLS 1.0
3291 but also for SSL 3.0 (as required by the specification).
3292 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3294 *) Change X509_certificate_type() to mark the key as exported/exportable
3295 when it's 512 *bits* long, not 512 bytes.
3298 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3299 blocks during encryption.
3302 *) Various fixes to base64 BIO and non blocking I/O. On write
3303 flushes were not handled properly if the BIO retried. On read
3304 data was not being buffered properly and had various logic bugs.
3305 This also affects blocking I/O when the data being decoded is a
3309 *) Various S/MIME bugfixes and compatibility changes:
3310 output correct application/pkcs7 MIME type if
3311 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3312 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3313 of files as .eml work). Correctly handle very long lines in MIME
3317 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3319 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3320 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3321 a protocol version number mismatch like a decryption error
3322 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3325 *) Turn on RSA blinding by default in the default implementation
3326 to avoid a timing attack. Applications that don't want it can call
3327 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3328 They would be ill-advised to do so in most cases.
3329 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3331 *) Change RSA blinding code so that it works when the PRNG is not
3332 seeded (in this case, the secret RSA exponent is abused as
3333 an unpredictable seed -- if it is not unpredictable, there
3334 is no point in blinding anyway). Make RSA blinding thread-safe
3335 by remembering the creator's thread ID in rsa->blinding and
3336 having all other threads use local one-time blinding factors
3337 (this requires more computation than sharing rsa->blinding, but
3338 avoids excessive locking; and if an RSA object is not shared
3339 between threads, blinding will still be very fast).
3342 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3343 ENGINE as defaults for all supported algorithms irrespective of
3344 the 'flags' parameter. 'flags' is now honoured, so applications
3345 should make sure they are passing it correctly.
3348 *) Target "mingw" now allows native Windows code to be generated in
3349 the Cygwin environment as well as with the MinGW compiler.
3352 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3354 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3355 via timing by performing a MAC computation even if incorrrect
3356 block cipher padding has been found. This is a countermeasure
3357 against active attacks where the attacker has to distinguish
3358 between bad padding and a MAC verification error. (CVE-2003-0078)
3360 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3361 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3362 Martin Vuagnoux (EPFL, Ilion)]
3364 *) Make the no-err option work as intended. The intention with no-err
3365 is not to have the whole error stack handling routines removed from
3366 libcrypto, it's only intended to remove all the function name and
3367 reason texts, thereby removing some of the footprint that may not
3368 be interesting if those errors aren't displayed anyway.
3370 NOTE: it's still possible for any application or module to have it's
3371 own set of error texts inserted. The routines are there, just not
3372 used by default when no-err is given.
3375 *) Add support for FreeBSD on IA64.
3376 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3378 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3379 Kerberos function mit_des_cbc_cksum(). Before this change,
3380 the value returned by DES_cbc_cksum() was like the one from
3381 mit_des_cbc_cksum(), except the bytes were swapped.
3382 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3384 *) Allow an application to disable the automatic SSL chain building.
3385 Before this a rather primitive chain build was always performed in
3386 ssl3_output_cert_chain(): an application had no way to send the
3387 correct chain if the automatic operation produced an incorrect result.
3389 Now the chain builder is disabled if either:
3391 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3393 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3395 The reasoning behind this is that an application would not want the
3396 auto chain building to take place if extra chain certificates are
3397 present and it might also want a means of sending no additional
3398 certificates (for example the chain has two certificates and the
3402 *) Add the possibility to build without the ENGINE framework.
3403 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3405 *) Under Win32 gmtime() can return NULL: check return value in
3406 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3409 *) DSA routines: under certain error conditions uninitialized BN objects
3410 could be freed. Solution: make sure initialization is performed early
3411 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3412 Nils Larsch <nla@trustcenter.de> via PR#459)
3415 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3416 checked on reconnect on the client side, therefore session resumption
3417 could still fail with a "ssl session id is different" error. This
3418 behaviour is masked when SSL_OP_ALL is used due to
3419 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3420 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3421 followup to PR #377.
3424 *) IA-32 assembler support enhancements: unified ELF targets, support
3425 for SCO/Caldera platforms, fix for Cygwin shared build.
3428 *) Add support for FreeBSD on sparc64. As a consequence, support for
3429 FreeBSD on non-x86 processors is separate from x86 processors on
3430 the config script, much like the NetBSD support.
3431 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3433 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3435 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3438 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3439 code (06) was taken as the first octet of the session ID and the last
3440 octet was ignored consequently. As a result SSLv2 client side session
3441 caching could not have worked due to the session ID mismatch between
3443 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3447 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3448 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3452 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3453 seems that in spite of existing for more than a year, many application
3454 author have done nothing to provide the necessary callbacks, which
3455 means that this particular engine will not work properly anywhere.
3456 This is a very unfortunate situation which forces us, in the name
3457 of usability, to give the hw_ncipher.c a static lock, which is part
3459 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3460 appear in 0.9.8 or later. We EXPECT application authors to have
3461 dealt properly with this when 0.9.8 is released (unless we actually
3462 make such changes in the libcrypto locking code that changes will
3463 have to be made anyway).
3466 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3467 octets have been read, EOF or an error occurs. Without this change
3468 some truncated ASN1 structures will not produce an error.
3471 *) Disable Heimdal support, since it hasn't been fully implemented.
3472 Still give the possibility to force the use of Heimdal, but with
3473 warnings and a request that patches get sent to openssl-dev.
3476 *) Add the VC-CE target, introduce the WINCE sysname, and add
3477 INSTALL.WCE and appropriate conditionals to make it build.
3478 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3480 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3481 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3482 edit numbers of the version.
3483 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3485 *) Introduce safe string copy and catenation functions
3486 (BUF_strlcpy() and BUF_strlcat()).
3487 [Ben Laurie (CHATS) and Richard Levitte]
3489 *) Avoid using fixed-size buffers for one-line DNs.
3490 [Ben Laurie (CHATS)]
3492 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3493 resizing buffers containing secrets, and use where appropriate.
3494 [Ben Laurie (CHATS)]
3496 *) Avoid using fixed size buffers for configuration file location.
3497 [Ben Laurie (CHATS)]
3499 *) Avoid filename truncation for various CA files.
3500 [Ben Laurie (CHATS)]
3502 *) Use sizeof in preference to magic numbers.
3503 [Ben Laurie (CHATS)]
3505 *) Avoid filename truncation in cert requests.
3506 [Ben Laurie (CHATS)]
3508 *) Add assertions to check for (supposedly impossible) buffer
3510 [Ben Laurie (CHATS)]
3512 *) Don't cache truncated DNS entries in the local cache (this could
3513 potentially lead to a spoofing attack).
3514 [Ben Laurie (CHATS)]
3516 *) Fix various buffers to be large enough for hex/decimal
3517 representations in a platform independent manner.
3518 [Ben Laurie (CHATS)]
3520 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3521 resizing buffers containing secrets, and use where appropriate.
3522 [Ben Laurie (CHATS)]
3524 *) Add BIO_indent() to avoid much slightly worrying code to do
3526 [Ben Laurie (CHATS)]
3528 *) Convert sprintf()/BIO_puts() to BIO_printf().
3529 [Ben Laurie (CHATS)]
3531 *) buffer_gets() could terminate with the buffer only half
3533 [Ben Laurie (CHATS)]
3535 *) Add assertions to prevent user-supplied crypto functions from
3536 overflowing internal buffers by having large block sizes, etc.
3537 [Ben Laurie (CHATS)]
3539 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3541 [Ben Laurie (CHATS)]
3543 *) Eliminate unused copy of key in RC4.
3544 [Ben Laurie (CHATS)]
3546 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3547 [Ben Laurie (CHATS)]
3549 *) Fix off-by-one error in EGD path.
3550 [Ben Laurie (CHATS)]
3552 *) If RANDFILE path is too long, ignore instead of truncating.
3553 [Ben Laurie (CHATS)]
3555 *) Eliminate unused and incorrectly sized X.509 structure
3557 [Ben Laurie (CHATS)]
3559 *) Eliminate unused and dangerous function knumber().
3560 [Ben Laurie (CHATS)]
3562 *) Eliminate unused and dangerous structure, KSSL_ERR.
3563 [Ben Laurie (CHATS)]
3565 *) Protect against overlong session ID context length in an encoded
3566 session object. Since these are local, this does not appear to be
3568 [Ben Laurie (CHATS)]
3570 *) Change from security patch (see 0.9.6e below) that did not affect
3571 the 0.9.6 release series:
3573 Remote buffer overflow in SSL3 protocol - an attacker could
3574 supply an oversized master key in Kerberos-enabled versions.
3576 [Ben Laurie (CHATS)]
3578 *) Change the SSL kerb5 codes to match RFC 2712.
3581 *) Make -nameopt work fully for req and add -reqopt switch.
3582 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3584 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3585 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3587 *) Make sure tests can be performed even if the corresponding algorithms
3588 have been removed entirely. This was also the last step to make
3589 OpenSSL compilable with DJGPP under all reasonable conditions.
3590 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3592 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3593 to allow version independent disabling of normally unselected ciphers,
3594 which may be activated as a side-effect of selecting a single cipher.
3596 (E.g., cipher list string "RSA" enables ciphersuites that are left
3597 out of "ALL" because they do not provide symmetric encryption.
3598 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3599 [Lutz Jaenicke, Bodo Moeller]
3601 *) Add appropriate support for separate platform-dependent build
3602 directories. The recommended way to make a platform-dependent
3603 build directory is the following (tested on Linux), maybe with
3606 # Place yourself outside of the OpenSSL source tree. In
3607 # this example, the environment variable OPENSSL_SOURCE
3608 # is assumed to contain the absolute OpenSSL source directory.
3609 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3610 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3611 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3612 mkdir -p `dirname $F`
3613 ln -s $OPENSSL_SOURCE/$F $F
3616 To be absolutely sure not to disturb the source tree, a "make clean"
3617 is a good thing. If it isn't successfull, don't worry about it,
3618 it probably means the source directory is very clean.
3621 *) Make sure any ENGINE control commands make local copies of string
3622 pointers passed to them whenever necessary. Otherwise it is possible
3623 the caller may have overwritten (or deallocated) the original string
3624 data when a later ENGINE operation tries to use the stored values.
3625 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3627 *) Improve diagnostics in file reading and command-line digests.
3628 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3630 *) Add AES modes CFB and OFB to the object database. Correct an
3631 error in AES-CFB decryption.
3634 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3635 allows existing EVP_CIPHER_CTX structures to be reused after
3636 calling EVP_*Final(). This behaviour is used by encryption
3637 BIOs and some applications. This has the side effect that
3638 applications must explicitly clean up cipher contexts with
3639 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3642 *) Check the values of dna and dnb in bn_mul_recursive before calling
3643 bn_mul_comba (a non zero value means the a or b arrays do not contain
3644 n2 elements) and fallback to bn_mul_normal if either is not zero.
3647 *) Fix escaping of non-ASCII characters when using the -subj option
3648 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3651 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3652 form for "surname", serialNumber has no short form.
3653 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3654 therefore remove "mail" short name for "internet 7".
3655 The OID for unique identifiers in X509 certificates is
3656 x500UniqueIdentifier, not uniqueIdentifier.
3657 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3660 *) Add an "init" command to the ENGINE config module and auto initialize
3661 ENGINEs. Without any "init" command the ENGINE will be initialized
3662 after all ctrl commands have been executed on it. If init=1 the
3663 ENGINE is initailized at that point (ctrls before that point are run
3664 on the uninitialized ENGINE and after on the initialized one). If
3665 init=0 then the ENGINE will not be iniatialized at all.
3668 *) Fix the 'app_verify_callback' interface so that the user-defined
3669 argument is actually passed to the callback: In the
3670 SSL_CTX_set_cert_verify_callback() prototype, the callback
3671 declaration has been changed from
3674 int (*cb)(X509_STORE_CTX *,void *);
3675 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3676 i=s->ctx->app_verify_callback(&ctx)
3677 has been changed into
3678 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3680 To update applications using SSL_CTX_set_cert_verify_callback(),
3681 a dummy argument can be added to their callback functions.
3682 [D. K. Smetters <smetters@parc.xerox.com>]
3684 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3685 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3687 *) Add and OPENSSL_LOAD_CONF define which will cause
3688 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3689 This allows older applications to transparently support certain
3690 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3691 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3692 load the config file and OPENSSL_add_all_algorithms_conf() which will
3693 always load it have also been added.
3696 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3697 Adjust NIDs and EVP layer.
3698 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3700 *) Config modules support in openssl utility.
3702 Most commands now load modules from the config file,
3703 though in a few (such as version) this isn't done
3704 because it couldn't be used for anything.
3706 In the case of ca and req the config file used is
3707 the same as the utility itself: that is the -config
3708 command line option can be used to specify an
3712 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3713 use "openssl_conf" if filename is NULL use default openssl config file.
3716 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3717 config section name. Add a new flag to tolerate a missing config file
3718 and move code to CONF_modules_load_file().
3721 *) Support for crypto accelerator cards from Accelerated Encryption
3722 Processing, www.aep.ie. (Use engine 'aep')
3723 The support was copied from 0.9.6c [engine] and adapted/corrected
3724 to work with the new engine framework.
3725 [AEP Inc. and Richard Levitte]
3727 *) Support for SureWare crypto accelerator cards from Baltimore
3728 Technologies. (Use engine 'sureware')
3729 The support was copied from 0.9.6c [engine] and adapted
3730 to work with the new engine framework.
3733 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3734 make the newer ENGINE framework commands for the CHIL engine work.
3735 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3737 *) Make it possible to produce shared libraries on ReliantUNIX.
3738 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3740 *) Add the configuration target debug-linux-ppro.
3741 Make 'openssl rsa' use the general key loading routines
3742 implemented in apps.c, and make those routines able to
3743 handle the key format FORMAT_NETSCAPE and the variant
3745 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3747 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3748 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3750 *) Add -keyform to rsautl, and document -engine.
3751 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3753 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3754 BIO_R_NO_SUCH_FILE error code rather than the generic
3755 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3758 *) Add new functions
3760 ERR_peek_last_error_line
3761 ERR_peek_last_error_line_data.
3762 These are similar to
3765 ERR_peek_error_line_data,
3766 but report on the latest error recorded rather than the first one
3767 still in the error queue.
3768 [Ben Laurie, Bodo Moeller]
3770 *) default_algorithms option in ENGINE config module. This allows things
3772 default_algorithms = ALL
3773 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3776 *) Prelminary ENGINE config module.
3779 *) New experimental application configuration code.
3782 *) Change the AES code to follow the same name structure as all other
3783 symmetric ciphers, and behave the same way. Move everything to
3784 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3785 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3787 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3788 [Ben Laurie and Theo de Raadt]
3790 *) Add option to output public keys in req command.
3791 [Massimiliano Pala madwolf@openca.org]
3793 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3794 (up to about 10% better than before for P-192 and P-224).
3797 *) New functions/macros
3799 SSL_CTX_set_msg_callback(ctx, cb)
3800 SSL_CTX_set_msg_callback_arg(ctx, arg)
3801 SSL_set_msg_callback(ssl, cb)
3802 SSL_set_msg_callback_arg(ssl, arg)
3804 to request calling a callback function
3806 void cb(int write_p, int version, int content_type,
3807 const void *buf, size_t len, SSL *ssl, void *arg)
3809 whenever a protocol message has been completely received
3810 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3811 protocol version according to which the SSL library interprets
3812 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3813 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3814 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3815 specification (change_cipher_spec(20), alert(21), handshake(22)).
3816 'buf' and 'len' point to the actual message, 'ssl' to the
3817 SSL object, and 'arg' is the application-defined value set by
3818 SSL[_CTX]_set_msg_callback_arg().
3820 'openssl s_client' and 'openssl s_server' have new '-msg' options
3821 to enable a callback that displays all protocol messages.
3824 *) Change the shared library support so shared libraries are built as
3825 soon as the corresponding static library is finished, and thereby get
3826 openssl and the test programs linked against the shared library.
3827 This still only happens when the keyword "shard" has been given to
3828 the configuration scripts.
3830 NOTE: shared library support is still an experimental thing, and
3831 backward binary compatibility is still not guaranteed.
3832 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3834 *) Add support for Subject Information Access extension.
3835 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3837 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3838 additional bytes when new memory had to be allocated, not just
3839 when reusing an existing buffer.
3842 *) New command line and configuration option 'utf8' for the req command.
3843 This allows field values to be specified as UTF8 strings.
3846 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3847 runs for the former and machine-readable output for the latter.
3850 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3851 of the e-mail address in the DN (i.e., it will go into a certificate
3852 extension only). The new configuration file option 'email_in_dn = no'
3853 has the same effect.
3854 [Massimiliano Pala madwolf@openca.org]
3856 *) Change all functions with names starting with des_ to be starting
3857 with DES_ instead. Add wrappers that are compatible with libdes,
3858 but are named _ossl_old_des_*. Finally, add macros that map the
3859 des_* symbols to the corresponding _ossl_old_des_* if libdes
3860 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3861 desired, the des_* symbols will be mapped to DES_*, with one
3864 Since we provide two compatibility mappings, the user needs to
3865 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3866 compatibility is desired. The default (i.e., when that macro
3867 isn't defined) is OpenSSL 0.9.6c compatibility.
3869 There are also macros that enable and disable the support of old
3870 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3871 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3872 are defined, the default will apply: to support the old des routines.
3874 In either case, one must include openssl/des.h to get the correct
3875 definitions. Do not try to just include openssl/des_old.h, that
3878 NOTE: This is a major break of an old API into a new one. Software
3879 authors are encouraged to switch to the DES_ style functions. Some
3880 time in the future, des_old.h and the libdes compatibility functions
3881 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3882 default), and then completely removed.
3885 *) Test for certificates which contain unsupported critical extensions.
3886 If such a certificate is found during a verify operation it is
3887 rejected by default: this behaviour can be overridden by either
3888 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3889 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3890 X509_supported_extension() has also been added which returns 1 if a
3891 particular extension is supported.
3894 *) Modify the behaviour of EVP cipher functions in similar way to digests
3895 to retain compatibility with existing code.
3898 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3899 compatibility with existing code. In particular the 'ctx' parameter does
3900 not have to be to be initialized before the call to EVP_DigestInit() and
3901 it is tidied up after a call to EVP_DigestFinal(). New function
3902 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3903 EVP_MD_CTX_copy() changed to not require the destination to be
3904 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3905 requires the destination to be valid.
3907 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3908 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3911 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3912 so that complete 'Handshake' protocol structures are kept in memory
3913 instead of overwriting 'msg_type' and 'length' with 'body' data.
3916 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3917 [Massimo Santin via Richard Levitte]
3919 *) Major restructuring to the underlying ENGINE code. This includes
3920 reduction of linker bloat, separation of pure "ENGINE" manipulation
3921 (initialisation, etc) from functionality dealing with implementations
3922 of specific crypto iterfaces. This change also introduces integrated
3923 support for symmetric ciphers and digest implementations - so ENGINEs
3924 can now accelerate these by providing EVP_CIPHER and EVP_MD
3925 implementations of their own. This is detailed in crypto/engine/README
3926 as it couldn't be adequately described here. However, there are a few
3927 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3928 were changed in the original introduction of ENGINE code have now
3929 reverted back - the hooking from this code to ENGINE is now a good
3930 deal more passive and at run-time, operations deal directly with
3931 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3932 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3933 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3934 they were not being used by the framework as there is no concept of a
3935 BIGNUM_METHOD and they could not be generalised to the new
3936 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3937 ENGINE_cpy() has been removed as it cannot be consistently defined in
3941 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3944 *) Change mkdef.pl to sort symbols that get the same entry number,
3945 and make sure the automatically generated functions ERR_load_*
3946 become part of libeay.num as well.
3949 *) New function SSL_renegotiate_pending(). This returns true once
3950 renegotiation has been requested (either SSL_renegotiate() call
3951 or HelloRequest/ClientHello receveived from the peer) and becomes
3952 false once a handshake has been completed.
3953 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3954 sends a HelloRequest, but does not ensure that a handshake takes
3955 place. SSL_renegotiate_pending() is useful for checking if the
3956 client has followed the request.)
3959 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3960 By default, clients may request session resumption even during
3961 renegotiation (if session ID contexts permit); with this option,
3962 session resumption is possible only in the first handshake.
3964 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3965 more bits available for options that should not be part of
3966 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3969 *) Add some demos for certificate and certificate request creation.
3972 *) Make maximum certificate chain size accepted from the peer application
3973 settable (SSL*_get/set_max_cert_list()), as proposed by
3974 "Douglas E. Engert" <deengert@anl.gov>.
3977 *) Add support for shared libraries for Unixware-7
3978 (Boyd Lynn Gerber <gerberb@zenez.com>).
3981 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3982 be done prior to destruction. Use this to unload error strings from
3983 ENGINEs that load their own error strings. NB: This adds two new API
3984 functions to "get" and "set" this destroy handler in an ENGINE.
3987 *) Alter all existing ENGINE implementations (except "openssl" and
3988 "openbsd") to dynamically instantiate their own error strings. This
3989 makes them more flexible to be built both as statically-linked ENGINEs
3990 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3991 Also, add stub code to each that makes building them as self-contained
3992 shared-libraries easier (see README.ENGINE).
3995 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3996 implementations into applications that are completely implemented in
3997 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3998 commands that can be used to configure what shared-library to load and
3999 to control aspects of the way it is handled. Also, made an update to
4000 the README.ENGINE file that brings its information up-to-date and
4001 provides some information and instructions on the "dynamic" ENGINE
4002 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4005 *) Make it possible to unload ranges of ERR strings with a new
4006 "ERR_unload_strings" function.
4009 *) Add a copy() function to EVP_MD.
4012 *) Make EVP_MD routines take a context pointer instead of just the
4013 md_data void pointer.
4016 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4017 that the digest can only process a single chunk of data
4018 (typically because it is provided by a piece of
4019 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4020 is only going to provide a single chunk of data, and hence the
4021 framework needn't accumulate the data for oneshot drivers.
4024 *) As with "ERR", make it possible to replace the underlying "ex_data"
4025 functions. This change also alters the storage and management of global
4026 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4027 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4028 index counters. The API functions that use this state have been changed
4029 to take a "class_index" rather than pointers to the class's local STACK
4030 and counter, and there is now an API function to dynamically create new
4031 classes. This centralisation allows us to (a) plug a lot of the
4032 thread-safety problems that existed, and (b) makes it possible to clean
4033 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4034 such data would previously have always leaked in application code and
4035 workarounds were in place to make the memory debugging turn a blind eye
4036 to it. Application code that doesn't use this new function will still
4037 leak as before, but their memory debugging output will announce it now
4038 rather than letting it slide.
4040 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4041 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4042 has a return value to indicate success or failure.
4045 *) Make it possible to replace the underlying "ERR" functions such that the
4046 global state (2 LHASH tables and 2 locks) is only used by the "default"
4047 implementation. This change also adds two functions to "get" and "set"
4048 the implementation prior to it being automatically set the first time
4049 any other ERR function takes place. Ie. an application can call "get",
4050 pass the return value to a module it has just loaded, and that module
4051 can call its own "set" function using that value. This means the
4052 module's "ERR" operations will use (and modify) the error state in the
4053 application and not in its own statically linked copy of OpenSSL code.
4056 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4057 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4058 the operation, and provides a more encapsulated way for external code
4059 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4060 to use these functions rather than manually incrementing the counts.
4062 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4065 *) Add EVP test program.
4068 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4071 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4072 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4073 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4074 These allow a CRL to be built without having to access X509_CRL fields
4075 directly. Modify 'ca' application to use new functions.
4078 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4079 bug workarounds. Rollback attack detection is a security feature.
4080 The problem will only arise on OpenSSL servers when TLSv1 is not
4081 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4082 Software authors not wanting to support TLSv1 will have special reasons
4083 for their choice and can explicitly enable this option.
4084 [Bodo Moeller, Lutz Jaenicke]
4086 *) Rationalise EVP so it can be extended: don't include a union of
4087 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4088 (similar to those existing for EVP_CIPHER_CTX).
4093 EVP_MD_CTX_init(&md); /* new function call */
4094 EVP_DigestInit(&md, EVP_sha1());
4095 EVP_DigestUpdate(&md, in, len);
4096 EVP_DigestFinal(&md, out, NULL);
4097 EVP_MD_CTX_cleanup(&md); /* new function call */
4101 *) Make DES key schedule conform to the usual scheme, as well as
4102 correcting its structure. This means that calls to DES functions
4103 now have to pass a pointer to a des_key_schedule instead of a
4104 plain des_key_schedule (which was actually always a pointer
4107 des_key_schedule ks;
4109 des_set_key_checked(..., &ks);
4110 des_ncbc_encrypt(..., &ks, ...);
4112 (Note that a later change renames 'des_...' into 'DES_...'.)
4115 *) Initial reduction of linker bloat: the use of some functions, such as
4116 PEM causes large amounts of unused functions to be linked in due to
4117 poor organisation. For example pem_all.c contains every PEM function
4118 which has a knock on effect of linking in large amounts of (unused)
4119 ASN1 code. Grouping together similar functions and splitting unrelated
4120 functions prevents this.
4123 *) Cleanup of EVP macros.
4126 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4127 correct _ecb suffix.
4130 *) Add initial OCSP responder support to ocsp application. The
4131 revocation information is handled using the text based index
4132 use by the ca application. The responder can either handle
4133 requests generated internally, supplied in files (for example
4134 via a CGI script) or using an internal minimal server.
4137 *) Add configuration choices to get zlib compression for TLS.
4140 *) Changes to Kerberos SSL for RFC 2712 compliance:
4141 1. Implemented real KerberosWrapper, instead of just using
4142 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4143 2. Implemented optional authenticator field of KerberosWrapper.
4145 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4146 and authenticator structs; see crypto/krb5/.
4148 Generalized Kerberos calls to support multiple Kerberos libraries.
4149 [Vern Staats <staatsvr@asc.hpc.mil>,
4150 Jeffrey Altman <jaltman@columbia.edu>
4151 via Richard Levitte]
4153 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4154 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4155 values for each of the key sizes rather than having just
4156 parameters (and 'speed' generating keys each time).
4159 *) Speed up EVP routines.
4162 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4163 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4164 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4165 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4167 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4168 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4169 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4172 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4174 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4177 *) Added the OS2-EMX target.
4178 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4180 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4181 to support NCONF routines in extension code. New function CONF_set_nconf()
4182 to allow functions which take an NCONF to also handle the old LHASH
4183 structure: this means that the old CONF compatible routines can be
4184 retained (in particular wrt extensions) without having to duplicate the
4185 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4188 *) Enhance the general user interface with mechanisms for inner control
4189 and with possibilities to have yes/no kind of prompts.
4192 *) Change all calls to low level digest routines in the library and
4193 applications to use EVP. Add missing calls to HMAC_cleanup() and
4194 don't assume HMAC_CTX can be copied using memcpy().
4195 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4197 *) Add the possibility to control engines through control names but with
4198 arbitrary arguments instead of just a string.
4199 Change the key loaders to take a UI_METHOD instead of a callback
4200 function pointer. NOTE: this breaks binary compatibility with earlier
4201 versions of OpenSSL [engine].
4202 Adapt the nCipher code for these new conditions and add a card insertion
4206 *) Enhance the general user interface with mechanisms to better support
4207 dialog box interfaces, application-defined prompts, the possibility
4208 to use defaults (for example default passwords from somewhere else)
4209 and interrupts/cancellations.
4212 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4213 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4216 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4217 tidy up some unnecessarily weird code in 'sk_new()').
4218 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4220 *) Change the key loading routines for ENGINEs to use the same kind
4221 callback (pem_password_cb) as all other routines that need this
4225 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4226 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4227 than this minimum value is recommended.
4230 *) New random seeder for OpenVMS, using the system process statistics
4231 that are easily reachable.
4234 *) Windows apparently can't transparently handle global
4235 variables defined in DLLs. Initialisations such as:
4237 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4239 wont compile. This is used by the any applications that need to
4240 declare their own ASN1 modules. This was fixed by adding the option
4241 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4242 needed for static libraries under Win32.
4245 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4246 setting of purpose and trust fields. New X509_STORE trust and
4247 purpose functions and tidy up setting in other SSL functions.
4250 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4251 structure. These are inherited by X509_STORE_CTX when it is
4252 initialised. This allows various defaults to be set in the
4253 X509_STORE structure (such as flags for CRL checking and custom
4254 purpose or trust settings) for functions which only use X509_STORE_CTX
4255 internally such as S/MIME.
4257 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4258 trust settings if they are not set in X509_STORE. This allows X509_STORE
4259 purposes and trust (in S/MIME for example) to override any set by default.
4261 Add command line options for CRL checking to smime, s_client and s_server
4265 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4266 are set then the CRL is looked up in the X509_STORE structure and
4267 its validity and signature checked, then if the certificate is found
4268 in the CRL the verify fails with a revoked error.
4270 Various new CRL related callbacks added to X509_STORE_CTX structure.
4272 Command line options added to 'verify' application to support this.
4274 This needs some additional work, such as being able to handle multiple
4275 CRLs with different times, extension based lookup (rather than just
4276 by subject name) and ultimately more complete V2 CRL extension
4280 *) Add a general user interface API (crypto/ui/). This is designed
4281 to replace things like des_read_password and friends (backward
4282 compatibility functions using this new API are provided).
4283 The purpose is to remove prompting functions from the DES code
4284 section as well as provide for prompting through dialog boxes in
4285 a window system and the like.
4288 *) Add "ex_data" support to ENGINE so implementations can add state at a
4289 per-structure level rather than having to store it globally.
4292 *) Make it possible for ENGINE structures to be copied when retrieved by
4293 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4294 This causes the "original" ENGINE structure to act like a template,
4295 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4296 operational state can be localised to each ENGINE structure, despite the
4297 fact they all share the same "methods". New ENGINE structures returned in
4298 this case have no functional references and the return value is the single
4299 structural reference. This matches the single structural reference returned
4300 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4304 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4305 needs to match any other type at all we need to manually clear the
4309 *) Changes to the "openssl engine" utility to include;
4310 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4311 about an ENGINE's available control commands.
4312 - executing control commands from command line arguments using the
4313 '-pre' and '-post' switches. '-post' is only used if '-t' is
4314 specified and the ENGINE is successfully initialised. The syntax for
4315 the individual commands are colon-separated, for example;
4316 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4319 *) New dynamic control command support for ENGINEs. ENGINEs can now
4320 declare their own commands (numbers), names (strings), descriptions,
4321 and input types for run-time discovery by calling applications. A
4322 subset of these commands are implicitly classed as "executable"
4323 depending on their input type, and only these can be invoked through
4324 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4325 can be based on user input, config files, etc). The distinction is
4326 that "executable" commands cannot return anything other than a boolean
4327 result and can only support numeric or string input, whereas some
4328 discoverable commands may only be for direct use through
4329 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4330 pointers, or other custom uses. The "executable" commands are to
4331 support parameterisations of ENGINE behaviour that can be
4332 unambiguously defined by ENGINEs and used consistently across any
4333 OpenSSL-based application. Commands have been added to all the
4334 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4335 control over shared-library paths without source code alterations.
4338 *) Changed all ENGINE implementations to dynamically allocate their
4339 ENGINEs rather than declaring them statically. Apart from this being
4340 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4341 this also allows the implementations to compile without using the
4342 internal engine_int.h header.
4345 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4346 'const' value. Any code that should be able to modify a RAND_METHOD
4347 should already have non-const pointers to it (ie. they should only
4348 modify their own ones).
4351 *) Made a variety of little tweaks to the ENGINE code.
4352 - "atalla" and "ubsec" string definitions were moved from header files
4353 to C code. "nuron" string definitions were placed in variables
4354 rather than hard-coded - allowing parameterisation of these values
4355 later on via ctrl() commands.
4356 - Removed unused "#if 0"'d code.
4357 - Fixed engine list iteration code so it uses ENGINE_free() to release
4358 structural references.
4359 - Constified the RAND_METHOD element of ENGINE structures.
4360 - Constified various get/set functions as appropriate and added
4361 missing functions (including a catch-all ENGINE_cpy that duplicates
4362 all ENGINE values onto a new ENGINE except reference counts/state).
4363 - Removed NULL parameter checks in get/set functions. Setting a method
4364 or function to NULL is a way of cancelling out a previously set
4365 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4366 and doesn't justify the extra error symbols and code.
4367 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4368 flags from engine_int.h to engine.h.
4369 - Changed prototypes for ENGINE handler functions (init(), finish(),
4370 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4373 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4374 to the algorithm using long division. The binary algorithm can be
4375 used only if the modulus is odd. On 32-bit systems, it is faster
4376 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4377 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4378 up to 450 bits. In 64-bit environments, the binary algorithm
4379 appears to be advantageous for much longer moduli; here we use it
4380 for moduli up to 2048 bits.
4383 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4384 could not support the combine flag in choice fields.
4387 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4388 extensions from a certificate request to the certificate.
4391 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4392 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4393 file: this allows the display of the certificate about to be
4394 signed to be customised, to allow certain fields to be included
4395 or excluded and extension details. The old system didn't display
4396 multicharacter strings properly, omitted fields not in the policy
4397 and couldn't display additional details such as extensions.
4400 *) Function EC_POINTs_mul for multiple scalar multiplication
4401 of an arbitrary number of elliptic curve points
4402 \sum scalars[i]*points[i],
4403 optionally including the generator defined for the EC_GROUP:
4404 scalar*generator + \sum scalars[i]*points[i].
4406 EC_POINT_mul is a simple wrapper function for the typical case
4407 that the point list has just one item (besides the optional
4411 *) First EC_METHODs for curves over GF(p):
4413 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4414 operations and provides various method functions that can also
4415 operate with faster implementations of modular arithmetic.
4417 EC_GFp_mont_method() reuses most functions that are part of
4418 EC_GFp_simple_method, but uses Montgomery arithmetic.
4420 [Bodo Moeller; point addition and point doubling
4421 implementation directly derived from source code provided by
4422 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4424 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4425 crypto/ec/ec_lib.c):
4427 Curves are EC_GROUP objects (with an optional group generator)
4428 based on EC_METHODs that are built into the library.
4430 Points are EC_POINT objects based on EC_GROUP objects.
4432 Most of the framework would be able to handle curves over arbitrary
4433 finite fields, but as there are no obvious types for fields other
4434 than GF(p), some functions are limited to that for now.
4437 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4438 that the file contains a complete HTTP response.
4441 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4442 change the def and num file printf format specifier from "%-40sXXX"
4443 to "%-39s XXX". The latter will always guarantee a space after the
4444 field while the former will cause them to run together if the field
4445 is 40 of more characters long.
4448 *) Constify the cipher and digest 'method' functions and structures
4449 and modify related functions to take constant EVP_MD and EVP_CIPHER
4453 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4454 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4457 *) Modify EVP_Digest*() routines so they now return values. Although the
4458 internal software routines can never fail additional hardware versions
4462 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4464 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4465 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4468 ERR_R_NESTED_ASN1_ERROR
4470 ERR_R_MISSING_ASN1_EOS
4471 were 4 .. 9, conflicting with
4472 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4474 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4475 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4477 Add new error code 'ERR_R_INTERNAL_ERROR'.
4480 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4484 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4485 sets the subject name for a new request or supersedes the
4486 subject name in a given request. Formats that can be parsed are
4487 'CN=Some Name, OU=myOU, C=IT'
4489 'CN=Some Name/OU=myOU/C=IT'.
4491 Add options '-batch' and '-verbose' to 'openssl req'.
4492 [Massimiliano Pala <madwolf@hackmasters.net>]
4494 *) Introduce the possibility to access global variables through
4495 functions on platform were that's the best way to handle exporting
4496 global variables in shared libraries. To enable this functionality,
4497 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4498 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4499 is normally done by Configure or something similar).
4501 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4502 in the source file (foo.c) like this:
4504 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4505 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4507 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4508 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4510 OPENSSL_DECLARE_GLOBAL(int,foo);
4511 #define foo OPENSSL_GLOBAL_REF(foo)
4512 OPENSSL_DECLARE_GLOBAL(double,bar);
4513 #define bar OPENSSL_GLOBAL_REF(bar)
4515 The #defines are very important, and therefore so is including the
4516 header file everywhere where the defined globals are used.
4518 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4519 of ASN.1 items, but that structure is a bit different.
4521 The largest change is in util/mkdef.pl which has been enhanced with
4522 better and easier to understand logic to choose which symbols should
4523 go into the Windows .def files as well as a number of fixes and code
4524 cleanup (among others, algorithm keywords are now sorted
4525 lexicographically to avoid constant rewrites).
4528 *) In BN_div() keep a copy of the sign of 'num' before writing the
4529 result to 'rm' because if rm==num the value will be overwritten
4530 and produce the wrong result if 'num' is negative: this caused
4531 problems with BN_mod() and BN_nnmod().
4534 *) Function OCSP_request_verify(). This checks the signature on an
4535 OCSP request and verifies the signer certificate. The signer
4536 certificate is just checked for a generic purpose and OCSP request
4540 *) Add OCSP_check_validity() function to check the validity of OCSP
4541 responses. OCSP responses are prepared in real time and may only
4542 be a few seconds old. Simply checking that the current time lies
4543 between thisUpdate and nextUpdate max reject otherwise valid responses
4544 caused by either OCSP responder or client clock inaccuracy. Instead
4545 we allow thisUpdate and nextUpdate to fall within a certain period of
4546 the current time. The age of the response can also optionally be
4547 checked. Two new options -validity_period and -status_age added to
4551 *) If signature or public key algorithm is unrecognized print out its
4552 OID rather that just UNKNOWN.
4555 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4556 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4557 ID to be generated from the issuer certificate alone which can then be
4558 passed to OCSP_id_issuer_cmp().
4561 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4562 ASN1 modules to export functions returning ASN1_ITEM pointers
4563 instead of the ASN1_ITEM structures themselves. This adds several
4564 new macros which allow the underlying ASN1 function/structure to
4565 be accessed transparently. As a result code should not use ASN1_ITEM
4566 references directly (such as &X509_it) but instead use the relevant
4567 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4568 use of the new ASN1 code on platforms where exporting structures
4569 is problematical (for example in shared libraries) but exporting
4570 functions returning pointers to structures is not.
4573 *) Add support for overriding the generation of SSL/TLS session IDs.
4574 These callbacks can be registered either in an SSL_CTX or per SSL.
4575 The purpose of this is to allow applications to control, if they wish,
4576 the arbitrary values chosen for use as session IDs, particularly as it
4577 can be useful for session caching in multiple-server environments. A
4578 command-line switch for testing this (and any client code that wishes
4579 to use such a feature) has been added to "s_server".
4580 [Geoff Thorpe, Lutz Jaenicke]
4582 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4583 of the form '#if defined(...) || defined(...) || ...' and
4584 '#if !defined(...) && !defined(...) && ...'. This also avoids
4585 the growing number of special cases it was previously handling.
4588 *) Make all configuration macros available for application by making
4589 sure they are available in opensslconf.h, by giving them names starting
4590 with "OPENSSL_" to avoid conflicts with other packages and by making
4591 sure e_os2.h will cover all platform-specific cases together with
4593 Additionally, it is now possible to define configuration/platform-
4594 specific names (called "system identities"). In the C code, these
4595 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4596 macro with the name beginning with "OPENSSL_SYS_", which is determined
4597 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4601 *) New option -set_serial to 'req' and 'x509' this allows the serial
4602 number to use to be specified on the command line. Previously self
4603 signed certificates were hard coded with serial number 0 and the
4604 CA options of 'x509' had to use a serial number in a file which was
4608 *) New options to 'ca' utility to support V2 CRL entry extensions.
4609 Currently CRL reason, invalidity date and hold instruction are
4610 supported. Add new CRL extensions to V3 code and some new objects.
4613 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4614 disable standard block padding (aka PKCS#5 padding) in the EVP
4615 API, which was previously mandatory. This means that the data is
4616 not padded in any way and so the total length much be a multiple
4617 of the block size, otherwise an error occurs.
4620 *) Initial (incomplete) OCSP SSL support.
4623 *) New function OCSP_parse_url(). This splits up a URL into its host,
4624 port and path components: primarily to parse OCSP URLs. New -url
4625 option to ocsp utility.
4628 *) New nonce behavior. The return value of OCSP_check_nonce() now
4629 reflects the various checks performed. Applications can decide
4630 whether to tolerate certain situations such as an absent nonce
4631 in a response when one was present in a request: the ocsp application
4632 just prints out a warning. New function OCSP_add1_basic_nonce()
4633 this is to allow responders to include a nonce in a response even if
4634 the request is nonce-less.
4637 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4638 skipped when using openssl x509 multiple times on a single input file,
4639 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4642 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4643 set string type: to handle setting ASN1_TIME structures. Fix ca
4644 utility to correctly initialize revocation date of CRLs.
4647 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4648 the clients preferred ciphersuites and rather use its own preferences.
4649 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4650 Internet Explorer by ensuring unchanged hash method during stepup.
4651 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4654 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4655 to aes and add a new 'exist' option to print out symbols that don't
4659 *) Additional options to ocsp utility to allow flags to be set and
4660 additional certificates supplied.
4663 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4664 OCSP client a number of certificate to only verify the response
4668 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4669 handle the new API. Currently only ECB, CBC modes supported. Add new
4672 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4673 Encryption Standard (AES) Ciphersuites for Transport Layer
4674 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4675 not enabled by default and were not part of the "ALL" ciphersuite
4676 alias because they were not yet official; they could be
4677 explicitly requested by specifying the "AESdraft" ciphersuite
4678 group alias. In the final release of OpenSSL 0.9.7, the group
4679 alias is called "AES" and is part of "ALL".)
4680 [Ben Laurie, Steve Henson, Bodo Moeller]
4682 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4683 request to response.
4686 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4687 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4688 extract information from a certificate request. OCSP_response_create()
4689 creates a response and optionally adds a basic response structure.
4690 OCSP_basic_add1_status() adds a complete single response to a basic
4691 response and returns the OCSP_SINGLERESP structure just added (to allow
4692 extensions to be included for example). OCSP_basic_add1_cert() adds a
4693 certificate to a basic response and OCSP_basic_sign() signs a basic
4694 response with various flags. New helper functions ASN1_TIME_check()
4695 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4696 (converts ASN1_TIME to GeneralizedTime).
4699 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4700 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4701 structure from a certificate. X509_pubkey_digest() digests the public_key
4702 contents: this is used in various key identifiers.
4705 *) Make sk_sort() tolerate a NULL argument.
4706 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4708 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4709 passed by the function are trusted implicitly. If any of them signed the
4710 response then it is assumed to be valid and is not verified.
4713 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4714 to data. This was previously part of the PKCS7 ASN1 code. This
4715 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4716 [Steve Henson, reported by Kenneth R. Robinette
4717 <support@securenetterm.com>]
4719 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4720 routines: without these tracing memory leaks is very painful.
4721 Fix leaks in PKCS12 and PKCS7 routines.
4724 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4725 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4726 effectively meant GeneralizedTime would never be used. Now it
4727 is initialised to -1 but X509_time_adj() now has to check the value
4728 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4729 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4730 [Steve Henson, reported by Kenneth R. Robinette
4731 <support@securenetterm.com>]
4733 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4734 result in a zero length in the ASN1_INTEGER structure which was
4735 not consistent with the structure when d2i_ASN1_INTEGER() was used
4736 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4737 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4738 where it did not print out a minus for negative ASN1_INTEGER.
4741 *) Add summary printout to ocsp utility. The various functions which
4742 convert status values to strings have been renamed to:
4743 OCSP_response_status_str(), OCSP_cert_status_str() and
4744 OCSP_crl_reason_str() and are no longer static. New options
4745 to verify nonce values and to disable verification. OCSP response
4746 printout format cleaned up.
4749 *) Add additional OCSP certificate checks. These are those specified
4750 in RFC2560. This consists of two separate checks: the CA of the
4751 certificate being checked must either be the OCSP signer certificate
4752 or the issuer of the OCSP signer certificate. In the latter case the
4753 OCSP signer certificate must contain the OCSP signing extended key
4754 usage. This check is performed by attempting to match the OCSP
4755 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4756 in the OCSP_CERTID structures of the response.
4759 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4760 and related routines. This uses the standard OpenSSL certificate
4761 verify routines to perform initial checks (just CA validity) and
4762 to obtain the certificate chain. Then additional checks will be
4763 performed on the chain. Currently the root CA is checked to see
4764 if it is explicitly trusted for OCSP signing. This is used to set
4765 a root CA as a global signing root: that is any certificate that
4766 chains to that CA is an acceptable OCSP signing certificate.
4769 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4770 extensions from a separate configuration file.
4771 As when reading extensions from the main configuration file,
4772 the '-extensions ...' option may be used for specifying the
4774 [Massimiliano Pala <madwolf@comune.modena.it>]
4776 *) New OCSP utility. Allows OCSP requests to be generated or
4777 read. The request can be sent to a responder and the output
4778 parsed, outputed or printed in text form. Not complete yet:
4779 still needs to check the OCSP response validity.
4782 *) New subcommands for 'openssl ca':
4783 'openssl ca -status <serial>' prints the status of the cert with
4784 the given serial number (according to the index file).
4785 'openssl ca -updatedb' updates the expiry status of certificates
4787 [Massimiliano Pala <madwolf@comune.modena.it>]
4789 *) New '-newreq-nodes' command option to CA.pl. This is like
4790 '-newreq', but calls 'openssl req' with the '-nodes' option
4791 so that the resulting key is not encrypted.
4792 [Damien Miller <djm@mindrot.org>]
4794 *) New configuration for the GNU Hurd.
4795 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4797 *) Initial code to implement OCSP basic response verify. This
4798 is currently incomplete. Currently just finds the signer's
4799 certificate and verifies the signature on the response.
4802 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4803 value of OPENSSLDIR. This is available via the new '-d' option
4804 to 'openssl version', and is also included in 'openssl version -a'.
4807 *) Allowing defining memory allocation callbacks that will be given
4808 file name and line number information in additional arguments
4809 (a const char* and an int). The basic functionality remains, as
4810 well as the original possibility to just replace malloc(),
4811 realloc() and free() by functions that do not know about these
4812 additional arguments. To register and find out the current
4813 settings for extended allocation functions, the following
4814 functions are provided:
4816 CRYPTO_set_mem_ex_functions
4817 CRYPTO_set_locked_mem_ex_functions
4818 CRYPTO_get_mem_ex_functions
4819 CRYPTO_get_locked_mem_ex_functions
4821 These work the same way as CRYPTO_set_mem_functions and friends.
4822 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4823 extended allocation function is enabled.
4824 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4825 a conventional allocation function is enabled.
4826 [Richard Levitte, Bodo Moeller]
4828 *) Finish off removing the remaining LHASH function pointer casts.
4829 There should no longer be any prototype-casting required when using
4830 the LHASH abstraction, and any casts that remain are "bugs". See
4831 the callback types and macros at the head of lhash.h for details
4832 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4835 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4836 If /dev/[u]random devices are not available or do not return enough
4837 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4839 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4840 /etc/entropy will be queried once each in this sequence, quering stops
4841 when enough entropy was collected without querying more sockets.
4844 *) Change the Unix RAND_poll() variant to be able to poll several
4845 random devices, as specified by DEVRANDOM, until a sufficient amount
4846 of data has been collected. We spend at most 10 ms on each file
4847 (select timeout) and read in non-blocking mode. DEVRANDOM now
4848 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4849 (previously it was just the string "/dev/urandom"), so on typical
4850 platforms the 10 ms delay will never occur.
4851 Also separate out the Unix variant to its own file, rand_unix.c.
4852 For VMS, there's a currently-empty rand_vms.c.
4855 *) Move OCSP client related routines to ocsp_cl.c. These
4856 provide utility functions which an application needing
4857 to issue a request to an OCSP responder and analyse the
4858 response will typically need: as opposed to those which an
4859 OCSP responder itself would need which will be added later.
4861 OCSP_request_sign() signs an OCSP request with an API similar
4862 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4863 response. OCSP_response_get1_basic() extracts basic response
4864 from response. OCSP_resp_find_status(): finds and extracts status
4865 information from an OCSP_CERTID structure (which will be created
4866 when the request structure is built). These are built from lower
4867 level functions which work on OCSP_SINGLERESP structures but
4868 wont normally be used unless the application wishes to examine
4869 extensions in the OCSP response for example.
4871 Replace nonce routines with a pair of functions.
4872 OCSP_request_add1_nonce() adds a nonce value and optionally
4873 generates a random value. OCSP_check_nonce() checks the
4874 validity of the nonce in an OCSP response.
4877 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4878 This doesn't copy the supplied OCSP_CERTID and avoids the
4879 need to free up the newly created id. Change return type
4880 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4881 This can then be used to add extensions to the request.
4882 Deleted OCSP_request_new(), since most of its functionality
4883 is now in OCSP_REQUEST_new() (and the case insensitive name
4884 clash) apart from the ability to set the request name which
4885 will be added elsewhere.
4888 *) Update OCSP API. Remove obsolete extensions argument from
4889 various functions. Extensions are now handled using the new
4890 OCSP extension code. New simple OCSP HTTP function which
4891 can be used to send requests and parse the response.
4894 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4895 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4896 uses the special reorder version of SET OF to sort the attributes
4897 and reorder them to match the encoded order. This resolves a long
4898 standing problem: a verify on a PKCS7 structure just after signing
4899 it used to fail because the attribute order did not match the
4900 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4901 it uses the received order. This is necessary to tolerate some broken
4902 software that does not order SET OF. This is handled by encoding
4903 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4904 to produce the required SET OF.
4907 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4908 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4909 files to get correct declarations of the ASN.1 item variables.
4912 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4913 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4914 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4915 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4916 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4917 ASN1_ITEM and no wrapper functions.
4920 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4921 replace the old function pointer based I/O routines. Change most of
4922 the *_d2i_bio() and *_d2i_fp() functions to use these.
4925 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4926 lines, recognice more "algorithms" that can be deselected, and make
4927 it complain about algorithm deselection that isn't recognised.
4930 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4931 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4932 to use new functions. Add NO_ASN1_OLD which can be set to remove
4933 some old style ASN1 functions: this can be used to determine if old
4934 code will still work when these eventually go away.
4937 *) New extension functions for OCSP structures, these follow the
4938 same conventions as certificates and CRLs.
4941 *) New function X509V3_add1_i2d(). This automatically encodes and
4942 adds an extension. Its behaviour can be customised with various
4943 flags to append, replace or delete. Various wrappers added for
4944 certifcates and CRLs.
4947 *) Fix to avoid calling the underlying ASN1 print routine when
4948 an extension cannot be parsed. Correct a typo in the
4949 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4952 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4953 entries for variables.
4956 *) Add functionality to apps/openssl.c for detecting locking
4957 problems: As the program is single-threaded, all we have
4958 to do is register a locking callback using an array for
4959 storing which locks are currently held by the program.
4962 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4963 SSL_get_ex_data_X509_STORE_idx(), which is used in
4964 ssl_verify_cert_chain() and thus can be called at any time
4965 during TLS/SSL handshakes so that thread-safety is essential.
4966 Unfortunately, the ex_data design is not at all suited
4967 for multi-threaded use, so it probably should be abolished.
4970 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4971 [Broadcom, tweaked and integrated by Geoff Thorpe]
4973 *) Move common extension printing code to new function
4974 X509V3_print_extensions(). Reorganise OCSP print routines and
4975 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4978 *) New function X509_signature_print() to remove duplication in some
4982 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4983 set (this was treated exactly the same as SET OF previously). This
4984 is used to reorder the STACK representing the structure to match the
4985 encoding. This will be used to get round a problem where a PKCS7
4986 structure which was signed could not be verified because the STACK
4987 order did not reflect the encoded order.
4990 *) Reimplement the OCSP ASN1 module using the new code.
4993 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4994 for its ASN1 operations. The old style function pointers still exist
4995 for now but they will eventually go away.
4998 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4999 completely replaces the old ASN1 functionality with a table driven
5000 encoder and decoder which interprets an ASN1_ITEM structure describing
5001 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5002 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5003 has also been converted to the new form.
5006 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5007 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5008 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5009 for negative moduli.
5012 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5013 of not touching the result's sign bit.
5016 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5020 *) Changed the LHASH code to use prototypes for callbacks, and created
5021 macros to declare and implement thin (optionally static) functions
5022 that provide type-safety and avoid function pointer casting for the
5023 type-specific callbacks.
5026 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5028 [Veers Staats <staatsvr@asc.hpc.mil>,
5029 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5031 *) Reformat the FAQ so the different questions and answers can be divided
5032 in sections depending on the subject.
5035 *) Have the zlib compression code load ZLIB.DLL dynamically under
5039 *) New function BN_mod_sqrt for computing square roots modulo a prime
5040 (using the probabilistic Tonelli-Shanks algorithm unless
5041 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5042 be handled deterministically).
5043 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5045 *) Make BN_mod_inverse faster by explicitly handling small quotients
5046 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5047 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5050 *) New function BN_kronecker.
5053 *) Fix BN_gcd so that it works on negative inputs; the result is
5054 positive unless both parameters are zero.
5055 Previously something reasonably close to an infinite loop was
5056 possible because numbers could be growing instead of shrinking
5057 in the implementation of Euclid's algorithm.
5060 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5061 sign of the number in question.
5063 Fix BN_is_word(a,w) to work correctly for w == 0.
5065 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5066 because its test if the absolute value of 'a' equals 'w'.
5067 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5068 it exists mostly for use in the implementations of BN_is_zero(),
5069 BN_is_one(), and BN_is_word().
5072 *) New function BN_swap.
5075 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5076 the exponentiation functions are more likely to produce reasonable
5077 results on negative inputs.
5080 *) Change BN_mod_mul so that the result is always non-negative.
5081 Previously, it could be negative if one of the factors was negative;
5082 I don't think anyone really wanted that behaviour.
5085 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5086 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5087 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5088 and add new functions:
5097 BN_mod_lshift1_quick
5101 These functions always generate non-negative results.
5103 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5104 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5106 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5107 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5108 be reduced modulo m.
5109 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5112 The following entry accidentily appeared in the CHANGES file
5113 distributed with OpenSSL 0.9.7. The modifications described in
5114 it do *not* apply to OpenSSL 0.9.7.
5116 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5117 was actually never needed) and in BN_mul(). The removal in BN_mul()
5118 required a small change in bn_mul_part_recursive() and the addition
5119 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5120 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5121 bn_sub_words() and bn_add_words() except they take arrays with
5126 *) In 'openssl passwd', verify passwords read from the terminal
5127 unless the '-salt' option is used (which usually means that
5128 verification would just waste user's time since the resulting
5129 hash is going to be compared with some given password hash)
5130 or the new '-noverify' option is used.
5132 This is an incompatible change, but it does not affect
5133 non-interactive use of 'openssl passwd' (passwords on the command
5134 line, '-stdin' option, '-in ...' option) and thus should not
5138 *) Remove all references to RSAref, since there's no more need for it.
5141 *) Make DSO load along a path given through an environment variable
5142 (SHLIB_PATH) with shl_load().
5145 *) Constify the ENGINE code as a result of BIGNUM constification.
5146 Also constify the RSA code and most things related to it. In a
5147 few places, most notable in the depth of the ASN.1 code, ugly
5148 casts back to non-const were required (to be solved at a later
5152 *) Make it so the openssl application has all engines loaded by default.
5155 *) Constify the BIGNUM routines a little more.
5158 *) Add the following functions:
5160 ENGINE_load_cswift()
5162 ENGINE_load_atalla()
5164 ENGINE_load_builtin_engines()
5166 That way, an application can itself choose if external engines that
5167 are built-in in OpenSSL shall ever be used or not. The benefit is
5168 that applications won't have to be linked with libdl or other dso
5169 libraries unless it's really needed.
5171 Changed 'openssl engine' to load all engines on demand.
5172 Changed the engine header files to avoid the duplication of some
5173 declarations (they differed!).
5176 *) 'openssl engine' can now list capabilities.
5179 *) Better error reporting in 'openssl engine'.
5182 *) Never call load_dh_param(NULL) in s_server.
5185 *) Add engine application. It can currently list engines by name and
5186 identity, and test if they are actually available.
5189 *) Improve RPM specification file by forcing symbolic linking and making
5190 sure the installed documentation is also owned by root.root.
5191 [Damien Miller <djm@mindrot.org>]
5193 *) Give the OpenSSL applications more possibilities to make use of
5194 keys (public as well as private) handled by engines.
5197 *) Add OCSP code that comes from CertCo.
5200 *) Add VMS support for the Rijndael code.
5203 *) Added untested support for Nuron crypto accelerator.
5206 *) Add support for external cryptographic devices. This code was
5207 previously distributed separately as the "engine" branch.
5208 [Geoff Thorpe, Richard Levitte]
5210 *) Rework the filename-translation in the DSO code. It is now possible to
5211 have far greater control over how a "name" is turned into a filename
5212 depending on the operating environment and any oddities about the
5213 different shared library filenames on each system.
5216 *) Support threads on FreeBSD-elf in Configure.
5219 *) Fix for SHA1 assembly problem with MASM: it produces
5220 warnings about corrupt line number information when assembling
5221 with debugging information. This is caused by the overlapping
5223 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5226 NCONF_get_number() has no error checking at all. As a replacement,
5227 NCONF_get_number_e() is defined (_e for "error checking") and is
5228 promoted strongly. The old NCONF_get_number is kept around for
5229 binary backward compatibility.
5230 Make it possible for methods to load from something other than a BIO,
5231 by providing a function pointer that is given a name instead of a BIO.
5232 For example, this could be used to load configuration data from an
5236 *) Fix for non blocking accept BIOs. Added new I/O special reason
5237 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5238 with non blocking I/O was not possible because no retry code was
5239 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5243 *) Added the beginnings of Rijndael support.
5246 *) Fix for bug in DirectoryString mask setting. Add support for
5247 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5248 to allow certificate printing to more controllable, additional
5249 'certopt' option to 'x509' to allow new printing options to be
5253 *) Clean old EAY MD5 hack from e_os.h.
5256 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5258 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5259 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5260 [Joe Orton, Steve Henson]
5262 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5264 *) Fix additional bug revealed by the NISCC test suite:
5266 Stop bug triggering large recursion when presented with
5267 certain ASN.1 tags (CVE-2003-0851)
5270 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5272 *) Fix various bugs revealed by running the NISCC test suite:
5274 Stop out of bounds reads in the ASN1 code when presented with
5275 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5277 If verify callback ignores invalid public key errors don't try to check
5278 certificate signature with the NULL public key.
5282 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5283 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5287 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5288 extra data after the compression methods not only for TLS 1.0
5289 but also for SSL 3.0 (as required by the specification).
5290 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5292 *) Change X509_certificate_type() to mark the key as exported/exportable
5293 when it's 512 *bits* long, not 512 bytes.
5296 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5298 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5299 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5300 a protocol version number mismatch like a decryption error
5301 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5304 *) Turn on RSA blinding by default in the default implementation
5305 to avoid a timing attack. Applications that don't want it can call
5306 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5307 They would be ill-advised to do so in most cases.
5308 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5310 *) Change RSA blinding code so that it works when the PRNG is not
5311 seeded (in this case, the secret RSA exponent is abused as
5312 an unpredictable seed -- if it is not unpredictable, there
5313 is no point in blinding anyway). Make RSA blinding thread-safe
5314 by remembering the creator's thread ID in rsa->blinding and
5315 having all other threads use local one-time blinding factors
5316 (this requires more computation than sharing rsa->blinding, but
5317 avoids excessive locking; and if an RSA object is not shared
5318 between threads, blinding will still be very fast).
5321 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5323 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5324 via timing by performing a MAC computation even if incorrrect
5325 block cipher padding has been found. This is a countermeasure
5326 against active attacks where the attacker has to distinguish
5327 between bad padding and a MAC verification error. (CVE-2003-0078)
5329 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5330 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5331 Martin Vuagnoux (EPFL, Ilion)]
5333 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5335 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5336 memory from it's contents. This is done with a counter that will
5337 place alternating values in each byte. This can be used to solve
5338 two issues: 1) the removal of calls to memset() by highly optimizing
5339 compilers, and 2) cleansing with other values than 0, since those can
5340 be read through on certain media, for example a swap space on disk.
5343 *) Bugfix: client side session caching did not work with external caching,
5344 because the session->cipher setting was not restored when reloading
5345 from the external cache. This problem was masked, when
5346 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5347 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5350 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5351 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5352 [Zeev Lieber <zeev-l@yahoo.com>]
5354 *) Undo an undocumented change introduced in 0.9.6e which caused
5355 repeated calls to OpenSSL_add_all_ciphers() and
5356 OpenSSL_add_all_digests() to be ignored, even after calling
5360 *) Change the default configuration reader to deal with last line not
5361 being properly terminated.
5364 *) Change X509_NAME_cmp() so it applies the special rules on handling
5365 DN values that are of type PrintableString, as well as RDNs of type
5366 emailAddress where the value has the type ia5String.
5367 [stefank@valicert.com via Richard Levitte]
5369 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5370 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5371 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5372 the bitwise-OR of the two for use by the majority of applications
5373 wanting this behaviour, and update the docs. The documented
5374 behaviour and actual behaviour were inconsistent and had been
5375 changing anyway, so this is more a bug-fix than a behavioural
5377 [Geoff Thorpe, diagnosed by Nadav Har'El]
5379 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5380 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5383 *) Fix initialization code race conditions in
5384 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5385 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5386 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5387 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5388 ssl2_get_cipher_by_char(),
5389 ssl3_get_cipher_by_char().
5390 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5392 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5393 the cached sessions are flushed, as the remove_cb() might use ex_data
5394 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5395 (see [openssl.org #212]).
5396 [Geoff Thorpe, Lutz Jaenicke]
5398 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5399 length, instead of the encoding length to d2i_ASN1_OBJECT.
5402 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5404 *) [In 0.9.6g-engine release:]
5405 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5406 [Lynn Gazis <lgazis@rainbow.com>]
5408 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5410 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5411 and get fix the header length calculation.
5412 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5413 Alon Kantor <alonk@checkpoint.com> (and others),
5416 *) Use proper error handling instead of 'assertions' in buffer
5417 overflow checks added in 0.9.6e. This prevents DoS (the
5418 assertions could call abort()).
5419 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5421 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5423 *) Add various sanity checks to asn1_get_length() to reject
5424 the ASN1 length bytes if they exceed sizeof(long), will appear
5425 negative or the content length exceeds the length of the
5427 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5429 *) Fix cipher selection routines: ciphers without encryption had no flags
5430 for the cipher strength set and where therefore not handled correctly
5431 by the selection routines (PR #130).
5434 *) Fix EVP_dsa_sha macro.
5438 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5439 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5440 that was added in OpenSSL 0.9.6d.
5442 As the countermeasure turned out to be incompatible with some
5443 broken SSL implementations, the new option is part of SSL_OP_ALL.
5444 SSL_OP_ALL is usually employed when compatibility with weird SSL
5445 implementations is desired (e.g. '-bugs' option to 's_client' and
5446 's_server'), so the new option is automatically set in many
5450 *) Changes in security patch:
5452 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5453 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5454 Air Force Materiel Command, USAF, under agreement number
5457 *) Add various sanity checks to asn1_get_length() to reject
5458 the ASN1 length bytes if they exceed sizeof(long), will appear
5459 negative or the content length exceeds the length of the
5460 supplied buffer. (CVE-2002-0659)
5461 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5463 *) Assertions for various potential buffer overflows, not known to
5465 [Ben Laurie (CHATS)]
5467 *) Various temporary buffers to hold ASCII versions of integers were
5468 too small for 64 bit platforms. (CVE-2002-0655)
5469 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5471 *) Remote buffer overflow in SSL3 protocol - an attacker could
5472 supply an oversized session ID to a client. (CVE-2002-0656)
5473 [Ben Laurie (CHATS)]
5475 *) Remote buffer overflow in SSL2 protocol - an attacker could
5476 supply an oversized client master key. (CVE-2002-0656)
5477 [Ben Laurie (CHATS)]
5479 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5481 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5482 encoded as NULL) with id-dsa-with-sha1.
5483 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5485 *) Check various X509_...() return values in apps/req.c.
5486 [Nils Larsch <nla@trustcenter.de>]
5488 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5489 an end-of-file condition would erronously be flagged, when the CRLF
5490 was just at the end of a processed block. The bug was discovered when
5491 processing data through a buffering memory BIO handing the data to a
5492 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5493 <ptsekov@syntrex.com> and Nedelcho Stanev.
5496 *) Implement a countermeasure against a vulnerability recently found
5497 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5498 before application data chunks to avoid the use of known IVs
5499 with data potentially chosen by the attacker.
5502 *) Fix length checks in ssl3_get_client_hello().
5505 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5506 to prevent ssl3_read_internal() from incorrectly assuming that
5507 ssl3_read_bytes() found application data while handshake
5508 processing was enabled when in fact s->s3->in_read_app_data was
5509 merely automatically cleared during the initial handshake.
5510 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5512 *) Fix object definitions for Private and Enterprise: they were not
5513 recognized in their shortname (=lowercase) representation. Extend
5514 obj_dat.pl to issue an error when using undefined keywords instead
5515 of silently ignoring the problem (Svenning Sorensen
5516 <sss@sss.dnsalias.net>).
5519 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5520 generators, i.e. generators other than 2 and 5. (Previously, the
5521 code did not properly initialise the 'add' and 'rem' values to
5522 BN_generate_prime().)
5524 In the new general case, we do not insist that 'generator' is
5525 actually a primitive root: This requirement is rather pointless;
5526 a generator of the order-q subgroup is just as good, if not
5530 *) Map new X509 verification errors to alerts. Discovered and submitted by
5531 Tom Wu <tom@arcot.com>.
5534 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5535 returning non-zero before the data has been completely received
5536 when using non-blocking I/O.
5537 [Bodo Moeller; problem pointed out by John Hughes]
5539 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5540 [Ben Laurie, Lutz Jaenicke]
5542 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5543 Yoram Zahavi <YoramZ@gilian.com>).
5546 *) Add information about CygWin 1.3 and on, and preserve proper
5547 configuration for the versions before that.
5548 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5550 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5551 check whether we deal with a copy of a session and do not delete from
5552 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5553 <izhar@checkpoint.com>.
5556 *) Do not store session data into the internal session cache, if it
5557 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5558 flag is set). Proposed by Aslam <aslam@funk.com>.
5561 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5565 *) [In 0.9.6d-engine release:]
5566 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5567 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5569 *) Add the configuration target linux-s390x.
5570 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5572 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5573 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5574 variable as an indication that a ClientHello message has been
5575 received. As the flag value will be lost between multiple
5576 invocations of ssl3_accept when using non-blocking I/O, the
5577 function may not be aware that a handshake has actually taken
5578 place, thus preventing a new session from being added to the
5581 To avoid this problem, we now set s->new_session to 2 instead of
5582 using a local variable.
5583 [Lutz Jaenicke, Bodo Moeller]
5585 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5586 if the SSL_R_LENGTH_MISMATCH error is detected.
5587 [Geoff Thorpe, Bodo Moeller]
5589 *) New 'shared_ldflag' column in Configure platform table.
5592 *) Fix EVP_CIPHER_mode macro.
5593 ["Dan S. Camper" <dan@bti.net>]
5595 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5596 type, we must throw them away by setting rr->length to 0.
5597 [D P Chang <dpc@qualys.com>]
5599 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5601 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5602 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5603 worked incorrectly for those cases where range = 10..._2 and
5604 3*range is two bits longer than range.)
5607 *) Only add signing time to PKCS7 structures if it is not already
5611 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5612 OBJ_ld_ce should be OBJ_id_ce.
5613 Also some ip-pda OIDs in crypto/objects/objects.txt were
5614 incorrect (cf. RFC 3039).
5615 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5617 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5618 returns early because it has nothing to do.
5619 [Andy Schneider <andy.schneider@bjss.co.uk>]
5621 *) [In 0.9.6c-engine release:]
5622 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5623 [Andy Schneider <andy.schneider@bjss.co.uk>]
5625 *) [In 0.9.6c-engine release:]
5626 Add support for Cryptographic Appliance's keyserver technology.
5627 (Use engine 'keyclient')
5628 [Cryptographic Appliances and Geoff Thorpe]
5630 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5631 is called via tools/c89.sh because arguments have to be
5632 rearranged (all '-L' options must appear before the first object
5634 [Richard Shapiro <rshapiro@abinitio.com>]
5636 *) [In 0.9.6c-engine release:]
5637 Add support for Broadcom crypto accelerator cards, backported
5639 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5641 *) [In 0.9.6c-engine release:]
5642 Add support for SureWare crypto accelerator cards from
5643 Baltimore Technologies. (Use engine 'sureware')
5644 [Baltimore Technologies and Mark Cox]
5646 *) [In 0.9.6c-engine release:]
5647 Add support for crypto accelerator cards from Accelerated
5648 Encryption Processing, www.aep.ie. (Use engine 'aep')
5649 [AEP Inc. and Mark Cox]
5651 *) Add a configuration entry for gcc on UnixWare.
5652 [Gary Benson <gbenson@redhat.com>]
5654 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5655 messages are stored in a single piece (fixed-length part and
5656 variable-length part combined) and fix various bugs found on the way.
5659 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5660 instead. BIO_gethostbyname() does not know what timeouts are
5661 appropriate, so entries would stay in cache even when they have
5663 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5665 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5666 faced with a pathologically small ClientHello fragment that does
5667 not contain client_version: Instead of aborting with an error,
5668 simply choose the highest available protocol version (i.e.,
5669 TLS 1.0 unless it is disabled). In practice, ClientHello
5670 messages are never sent like this, but this change gives us
5671 strictly correct behaviour at least for TLS.
5674 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5675 never resets s->method to s->ctx->method when called from within
5676 one of the SSL handshake functions.
5677 [Bodo Moeller; problem pointed out by Niko Baric]
5679 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5680 (sent using the client's version number) if client_version is
5681 smaller than the protocol version in use. Also change
5682 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5683 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5684 the client will at least see that alert.
5687 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5691 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5692 client receives HelloRequest while in a handshake.
5693 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5695 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5696 should end in 'break', not 'goto end' which circuments various
5697 cleanups done in state SSL_ST_OK. But session related stuff
5698 must be disabled for SSL_ST_OK in the case that we just sent a
5701 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5702 before just sending a HelloRequest.
5703 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5705 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5706 reveal whether illegal block cipher padding was found or a MAC
5707 verification error occured. (Neither SSLerr() codes nor alerts
5708 are directly visible to potential attackers, but the information
5709 may leak via logfiles.)
5711 Similar changes are not required for the SSL 2.0 implementation
5712 because the number of padding bytes is sent in clear for SSL 2.0,
5713 and the extra bytes are just ignored. However ssl/s2_pkt.c
5714 failed to verify that the purported number of padding bytes is in
5718 *) Add OpenUNIX-8 support including shared libraries
5719 (Boyd Lynn Gerber <gerberb@zenez.com>).
5722 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5723 'wristwatch attack' using huge encoding parameters (cf.
5724 James H. Manger's CRYPTO 2001 paper). Note that the
5725 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5726 encoding parameters and hence was not vulnerable.
5729 *) BN_sqr() bug fix.
5730 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5732 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5733 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5734 followed by modular reduction.
5735 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5737 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5738 equivalent based on BN_pseudo_rand() instead of BN_rand().
5741 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5742 This function was broken, as the check for a new client hello message
5743 to handle SGC did not allow these large messages.
5744 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5747 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5750 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5751 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5754 *) Rework the configuration and shared library support for Tru64 Unix.
5755 The configuration part makes use of modern compiler features and
5756 still retains old compiler behavior for those that run older versions
5757 of the OS. The shared library support part includes a variant that
5758 uses the RPATH feature, and is available through the special
5759 configuration target "alpha-cc-rpath", which will never be selected
5761 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5763 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5764 with the same message size as in ssl3_get_certificate_request().
5765 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5766 messages might inadvertently be reject as too long.
5767 [Petr Lampa <lampa@fee.vutbr.cz>]
5769 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5772 *) Modified SSL library such that the verify_callback that has been set
5773 specificly for an SSL object with SSL_set_verify() is actually being
5774 used. Before the change, a verify_callback set with this function was
5775 ignored and the verify_callback() set in the SSL_CTX at the time of
5776 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5777 to allow the necessary settings.
5780 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5781 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5782 done automatically (in contradiction to the requirements of the C
5783 standard). This made problems when used from OpenSSH.
5786 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5787 dh->length and always used
5789 BN_rand_range(priv_key, dh->p).
5791 BN_rand_range() is not necessary for Diffie-Hellman, and this
5792 specific range makes Diffie-Hellman unnecessarily inefficient if
5793 dh->length (recommended exponent length) is much smaller than the
5794 length of dh->p. We could use BN_rand_range() if the order of
5795 the subgroup was stored in the DH structure, but we only have
5800 BN_rand(priv_key, l, ...)
5802 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5808 RSA_eay_public_encrypt
5809 RSA_eay_private_decrypt
5810 RSA_eay_private_encrypt (signing)
5811 RSA_eay_public_decrypt (signature verification)
5813 (default implementations for RSA_public_encrypt,
5814 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5815 always reject numbers >= n.
5818 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5819 to synchronize access to 'locking_thread'. This is necessary on
5820 systems where access to 'locking_thread' (an 'unsigned long'
5821 variable) is not atomic.
5824 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5825 *before* setting the 'crypto_lock_rand' flag. The previous code had
5826 a race condition if 0 is a valid thread ID.
5827 [Travis Vitek <vitek@roguewave.com>]
5829 *) Add support for shared libraries under Irix.
5830 [Albert Chin-A-Young <china@thewrittenword.com>]
5832 *) Add configuration option to build on Linux on both big-endian and
5834 [Ralf Baechle <ralf@uni-koblenz.de>]
5836 *) Add the possibility to create shared libraries on HP-UX.
5839 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5841 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5842 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5843 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5844 PRNG state recovery was possible based on the output of
5845 one PRNG request appropriately sized to gain knowledge on
5846 'md' followed by enough consecutive 1-byte PRNG requests
5847 to traverse all of 'state'.
5849 1. When updating 'md_local' (the current thread's copy of 'md')
5850 during PRNG output generation, hash all of the previous
5851 'md_local' value, not just the half used for PRNG output.
5853 2. Make the number of bytes from 'state' included into the hash
5854 independent from the number of PRNG bytes requested.
5856 The first measure alone would be sufficient to avoid
5857 Markku-Juhani's attack. (Actually it had never occurred
5858 to me that the half of 'md_local' used for chaining was the
5859 half from which PRNG output bytes were taken -- I had always
5860 assumed that the secret half would be used.) The second
5861 measure makes sure that additional data from 'state' is never
5862 mixed into 'md_local' in small portions; this heuristically
5863 further strengthens the PRNG.
5866 *) Fix crypto/bn/asm/mips3.s.
5869 *) When only the key is given to "enc", the IV is undefined. Print out
5870 an error message in this case.
5873 *) Handle special case when X509_NAME is empty in X509 printing routines.
5876 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5877 positive and less than q.
5880 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5881 used: it isn't thread safe and the add_lock_callback should handle
5883 [Paul Rose <Paul.Rose@bridge.com>]
5885 *) Verify that incoming data obeys the block size in
5886 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5890 [Ulf Möller, Bodo Möller]
5892 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5893 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5894 when fixing the server behaviour for backwards-compatible 'client
5895 hello' messages. (Note that the attack is impractical against
5896 SSL 3.0 and TLS 1.0 anyway because length and version checking
5897 means that the probability of guessing a valid ciphertext is
5898 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5901 Before 0.9.5, the countermeasure (hide the error by generating a
5902 random 'decryption result') did not work properly because
5903 ERR_clear_error() was missing, meaning that SSL_get_error() would
5904 detect the supposedly ignored error.
5906 Both problems are now fixed.
5909 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5910 (previously it was 1024).
5913 *) Fix for compatibility mode trust settings: ignore trust settings
5914 unless some valid trust or reject settings are present.
5917 *) Fix for blowfish EVP: its a variable length cipher.
5920 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5921 parameters in DSA public key structures and return an error in the
5922 DSA routines if parameters are absent.
5925 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5926 in the current directory if neither $RANDFILE nor $HOME was set.
5927 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5928 caused some confusion to Windows users who haven't defined $HOME.
5929 Thus RAND_file_name() is changed again: e_os.h can define a
5930 DEFAULT_HOME, which will be used if $HOME is not set.
5931 For Windows, we use "C:"; on other platforms, we still require
5932 environment variables.
5934 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5935 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5936 having multiple threads call RAND_poll() concurrently.
5939 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5940 combination of a flag and a thread ID variable.
5941 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5942 flag), *other* threads can enter ssleay_add_bytes without obeying
5943 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5944 that they do not hold after the first thread unsets add_do_not_lock).
5947 *) Change bctest again: '-x' expressions are not available in all
5951 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5953 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5954 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5956 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5957 the default extension for executables, if any. Also, make the perl
5958 scripts that use symlink() to test if it really exists and use "cp"
5959 if it doesn't. All this made OpenSSL compilable and installable in
5963 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5964 If SEQUENCE is length is indefinite just set c->slen to the total
5965 amount of data available.
5966 [Steve Henson, reported by shige@FreeBSD.org]
5967 [This change does not apply to 0.9.7.]
5969 *) Change bctest to avoid here-documents inside command substitution
5970 (workaround for FreeBSD /bin/sh bug).
5971 For compatibility with Ultrix, avoid shell functions (introduced
5972 in the bctest version that searches along $PATH).
5975 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5976 with des_encrypt() defined on some operating systems, like Solaris
5980 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5981 On the Importance of Eliminating Errors in Cryptographic
5982 Computations, J. Cryptology 14 (2001) 2, 101-119,
5983 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5986 *) MIPS assembler BIGNUM division bug fix.
5989 *) Disabled incorrect Alpha assembler code.
5992 *) Fix PKCS#7 decode routines so they correctly update the length
5993 after reading an EOC for the EXPLICIT tag.
5995 [This change does not apply to 0.9.7.]
5997 *) Fix bug in PKCS#12 key generation routines. This was triggered
5998 if a 3DES key was generated with a 0 initial byte. Include
5999 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6000 (but broken) behaviour.
6003 *) Enhance bctest to search for a working bc along $PATH and print
6005 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6007 *) Fix memory leaks in err.c: free err_data string if necessary;
6008 don't write to the wrong index in ERR_set_error_data.
6011 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6015 *) Replace rdtsc with _emit statements for VC++ version 5.
6016 [Jeremy Cooper <jeremy@baymoo.org>]
6018 *) Make it possible to reuse SSLv2 sessions.
6021 *) In copy_email() check for >= 0 as a return value for
6022 X509_NAME_get_index_by_NID() since 0 is a valid index.
6023 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6025 *) Avoid coredump with unsupported or invalid public keys by checking if
6026 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6027 PKCS7_verify() fails with non detached data.
6030 *) Don't use getenv in library functions when run as setuid/setgid.
6031 New function OPENSSL_issetugid().
6034 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6035 due to incorrect handling of multi-threading:
6037 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6039 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6041 3. Count how many times MemCheck_off() has been called so that
6042 nested use can be treated correctly. This also avoids
6043 inband-signalling in the previous code (which relied on the
6044 assumption that thread ID 0 is impossible).
6047 *) Add "-rand" option also to s_client and s_server.
6050 *) Fix CPU detection on Irix 6.x.
6051 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6052 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6054 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6057 [This change does not apply to 0.9.7.]
6059 *) Use the cached encoding of an X509_NAME structure rather than
6060 copying it. This is apparently the reason for the libsafe "errors"
6061 but the code is actually correct.
6064 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6065 Bleichenbacher's DSA attack.
6066 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6067 to be set and top=0 forces the highest bit to be set; top=-1 is new
6068 and leaves the highest bit random.
6069 [Ulf Moeller, Bodo Moeller]
6071 *) In the NCONF_...-based implementations for CONF_... queries
6072 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6073 a temporary CONF structure with the data component set to NULL
6074 (which gives segmentation faults in lh_retrieve).
6075 Instead, use NULL for the CONF pointer in CONF_get_string and
6076 CONF_get_number (which may use environment variables) and directly
6077 return NULL from CONF_get_section.
6080 *) Fix potential buffer overrun for EBCDIC.
6083 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6084 keyUsage if basicConstraints absent for a CA.
6087 *) Make SMIME_write_PKCS7() write mail header values with a format that
6088 is more generally accepted (no spaces before the semicolon), since
6089 some programs can't parse those values properly otherwise. Also make
6090 sure BIO's that break lines after each write do not create invalid
6094 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6095 macros previously used would not encode an empty SEQUENCE OF
6096 and break the signature.
6098 [This change does not apply to 0.9.7.]
6100 *) Zero the premaster secret after deriving the master secret in
6104 *) Add some EVP_add_digest_alias registrations (as found in
6105 OpenSSL_add_all_digests()) to SSL_library_init()
6106 aka OpenSSL_add_ssl_algorithms(). This provides improved
6107 compatibility with peers using X.509 certificates
6108 with unconventional AlgorithmIdentifier OIDs.
6111 *) Fix for Irix with NO_ASM.
6112 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6114 *) ./config script fixes.
6115 [Ulf Moeller, Richard Levitte]
6117 *) Fix 'openssl passwd -1'.
6120 *) Change PKCS12_key_gen_asc() so it can cope with non null
6121 terminated strings whose length is passed in the passlen
6122 parameter, for example from PEM callbacks. This was done
6123 by adding an extra length parameter to asc2uni().
6124 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6126 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6127 call failed, free the DSA structure.
6130 *) Fix to uni2asc() to cope with zero length Unicode strings.
6131 These are present in some PKCS#12 files.
6134 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6135 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6136 when writing a 32767 byte record.
6137 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6139 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6140 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6142 (RSA objects have a reference count access to which is protected
6143 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6144 so they are meant to be shared between threads.)
6145 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6146 "Reddie, Steven" <Steven.Reddie@ca.com>]
6148 *) Fix a deadlock in CRYPTO_mem_leaks().
6151 *) Use better test patterns in bntest.
6154 *) rand_win.c fix for Borland C.
6157 *) BN_rshift bugfix for n == 0.
6160 *) Add a 'bctest' script that checks for some known 'bc' bugs
6161 so that 'make test' does not abort just because 'bc' is broken.
6164 *) Store verify_result within SSL_SESSION also for client side to
6165 avoid potential security hole. (Re-used sessions on the client side
6166 always resulted in verify_result==X509_V_OK, not using the original
6167 result of the server certificate verification.)
6170 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6171 SSL3_RT_APPLICATION_DATA, return 0.
6172 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6176 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6177 releases, have been re-implemented by renaming the previous
6178 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6179 and ssl3_read_internal, respectively, and adding 'peek' parameters
6180 to them. The new ssl[23]_{read,peek} functions are calls to
6181 ssl[23]_read_internal with the 'peek' flag set appropriately.
6182 A 'peek' parameter has also been added to ssl3_read_bytes, which
6183 does the actual work for ssl3_read_internal.
6186 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6187 the method-specific "init()" handler. Also clean up ex_data after
6188 calling the method-specific "finish()" handler. Previously, this was
6189 happening the other way round.
6192 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6193 The previous value, 12, was not always sufficient for BN_mod_exp().
6196 *) Make sure that shared libraries get the internal name engine with
6197 the full version number and not just 0. This should mark the
6198 shared libraries as not backward compatible. Of course, this should
6199 be changed again when we can guarantee backward binary compatibility.
6202 *) Fix typo in get_cert_by_subject() in by_dir.c
6203 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6205 *) Rework the system to generate shared libraries:
6207 - Make note of the expected extension for the shared libraries and
6208 if there is a need for symbolic links from for example libcrypto.so.0
6209 to libcrypto.so.0.9.7. There is extended info in Configure for
6212 - Make as few rebuilds of the shared libraries as possible.
6214 - Still avoid linking the OpenSSL programs with the shared libraries.
6216 - When installing, install the shared libraries separately from the
6220 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6222 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6223 and not in SSL_clear because the latter is also used by the
6224 accept/connect functions; previously, the settings made by
6225 SSL_set_read_ahead would be lost during the handshake.
6226 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6228 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6229 Previously, it would create entries for disableed algorithms no
6233 *) Added several new manual pages for SSL_* function.
6236 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6238 *) In ssl23_get_client_hello, generate an error message when faced
6239 with an initial SSL 3.0/TLS record that is too small to contain the
6240 first two bytes of the ClientHello message, i.e. client_version.
6241 (Note that this is a pathologic case that probably has never happened
6242 in real life.) The previous approach was to use the version number
6243 from the record header as a substitute; but our protocol choice
6244 should not depend on that one because it is not authenticated
6245 by the Finished messages.
6248 *) More robust randomness gathering functions for Windows.
6249 [Jeffrey Altman <jaltman@columbia.edu>]
6251 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6252 not set then we don't setup the error code for issuer check errors
6253 to avoid possibly overwriting other errors which the callback does
6254 handle. If an application does set the flag then we assume it knows
6255 what it is doing and can handle the new informational codes
6259 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6260 a general "ANY" type, as such it should be able to decode anything
6261 including tagged types. However it didn't check the class so it would
6262 wrongly interpret tagged types in the same way as their universal
6263 counterpart and unknown types were just rejected. Changed so that the
6264 tagged and unknown types are handled in the same way as a SEQUENCE:
6265 that is the encoding is stored intact. There is also a new type
6266 "V_ASN1_OTHER" which is used when the class is not universal, in this
6267 case we have no idea what the actual type is so we just lump them all
6271 *) On VMS, stdout may very well lead to a file that is written to
6272 in a record-oriented fashion. That means that every write() will
6273 write a separate record, which will be read separately by the
6274 programs trying to read from it. This can be very confusing.
6276 The solution is to put a BIO filter in the way that will buffer
6277 text until a linefeed is reached, and then write everything a
6278 line at a time, so every record written will be an actual line,
6279 not chunks of lines and not (usually doesn't happen, but I've
6280 seen it once) several lines in one record. BIO_f_linebuffer() is
6283 Currently, it's a VMS-only method, because that's where it has
6284 been tested well enough.
6287 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6288 it can return incorrect results.
6289 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6290 but it was in 0.9.6-beta[12].)
6293 *) Disable the check for content being present when verifying detached
6294 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6295 include zero length content when signing messages.
6298 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6299 BIO_ctrl (for BIO pairs).
6302 *) Add DSO method for VMS.
6305 *) Bug fix: Montgomery multiplication could produce results with the
6309 *) Add RPM specification openssl.spec and modify it to build three
6310 packages. The default package contains applications, application
6311 documentation and run-time libraries. The devel package contains
6312 include files, static libraries and function documentation. The
6313 doc package contains the contents of the doc directory. The original
6314 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6317 *) Add a large number of documentation files for many SSL routines.
6318 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6320 *) Add a configuration entry for Sony News 4.
6321 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6323 *) Don't set the two most significant bits to one when generating a
6324 random number < q in the DSA library.
6327 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6328 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6329 the underlying transport is blocking) if a handshake took place.
6330 (The default behaviour is needed by applications such as s_client
6331 and s_server that use select() to determine when to use SSL_read;
6332 but for applications that know in advance when to expect data, it
6333 just makes things more complicated.)
6336 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6340 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6341 work better on such systems.
6342 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6344 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6345 Update PKCS12_parse() so it copies the friendlyName and the
6346 keyid to the certificates aux info.
6349 *) Fix bug in PKCS7_verify() which caused an infinite loop
6350 if there was more than one signature.
6351 [Sven Uszpelkat <su@celocom.de>]
6353 *) Major change in util/mkdef.pl to include extra information
6354 about each symbol, as well as presentig variables as well
6355 as functions. This change means that there's n more need
6356 to rebuild the .num files when some algorithms are excluded.
6359 *) Allow the verify time to be set by an application,
6360 rather than always using the current time.
6363 *) Phase 2 verify code reorganisation. The certificate
6364 verify code now looks up an issuer certificate by a
6365 number of criteria: subject name, authority key id
6366 and key usage. It also verifies self signed certificates
6367 by the same criteria. The main comparison function is
6368 X509_check_issued() which performs these checks.
6370 Lot of changes were necessary in order to support this
6371 without completely rewriting the lookup code.
6373 Authority and subject key identifier are now cached.
6375 The LHASH 'certs' is X509_STORE has now been replaced
6376 by a STACK_OF(X509_OBJECT). This is mainly because an
6377 LHASH can't store or retrieve multiple objects with
6378 the same hash value.
6380 As a result various functions (which were all internal
6381 use only) have changed to handle the new X509_STORE
6382 structure. This will break anything that messed round
6383 with X509_STORE internally.
6385 The functions X509_STORE_add_cert() now checks for an
6386 exact match, rather than just subject name.
6388 The X509_STORE API doesn't directly support the retrieval
6389 of multiple certificates matching a given criteria, however
6390 this can be worked round by performing a lookup first
6391 (which will fill the cache with candidate certificates)
6392 and then examining the cache for matches. This is probably
6393 the best we can do without throwing out X509_LOOKUP
6394 entirely (maybe later...).
6396 The X509_VERIFY_CTX structure has been enhanced considerably.
6398 All certificate lookup operations now go via a get_issuer()
6399 callback. Although this currently uses an X509_STORE it
6400 can be replaced by custom lookups. This is a simple way
6401 to bypass the X509_STORE hackery necessary to make this
6402 work and makes it possible to use more efficient techniques
6403 in future. A very simple version which uses a simple
6404 STACK for its trusted certificate store is also provided
6405 using X509_STORE_CTX_trusted_stack().
6407 The verify_cb() and verify() callbacks now have equivalents
6408 in the X509_STORE_CTX structure.
6410 X509_STORE_CTX also has a 'flags' field which can be used
6411 to customise the verify behaviour.
6414 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6415 excludes S/MIME capabilities.
6418 *) When a certificate request is read in keep a copy of the
6419 original encoding of the signed data and use it when outputing
6420 again. Signatures then use the original encoding rather than
6421 a decoded, encoded version which may cause problems if the
6422 request is improperly encoded.
6425 *) For consistency with other BIO_puts implementations, call
6426 buffer_write(b, ...) directly in buffer_puts instead of calling
6429 In BIO_puts, increment b->num_write as in BIO_write.
6430 [Peter.Sylvester@EdelWeb.fr]
6432 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6433 BN_zero, we may not return a BIGNUM with an array consisting of
6437 *) Avoid calling abort() from within the library when problems are
6438 detected, except if preprocessor symbols have been defined
6439 (such as REF_CHECK, BN_DEBUG etc.).
6442 *) New openssl application 'rsautl'. This utility can be
6443 used for low level RSA operations. DER public key
6444 BIO/fp routines also added.
6447 *) New Configure entry and patches for compiling on QNX 4.
6448 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6450 *) A demo state-machine implementation was sponsored by
6451 Nuron (http://www.nuron.com/) and is now available in
6452 demos/state_machine.
6455 *) New options added to the 'dgst' utility for signature
6456 generation and verification.
6459 *) Unrecognized PKCS#7 content types are now handled via a
6460 catch all ASN1_TYPE structure. This allows unsupported
6461 types to be stored as a "blob" and an application can
6462 encode and decode it manually.
6465 *) Fix various signed/unsigned issues to make a_strex.c
6467 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6469 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6470 length if passed a buffer. ASN1_INTEGER_to_BN failed
6471 if passed a NULL BN and its argument was negative.
6472 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6474 *) Modification to PKCS#7 encoding routines to output definite
6475 length encoding. Since currently the whole structures are in
6476 memory there's not real point in using indefinite length
6477 constructed encoding. However if OpenSSL is compiled with
6478 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6481 *) Added BIO_vprintf() and BIO_vsnprintf().
6484 *) Added more prefixes to parse for in the the strings written
6485 through a logging bio, to cover all the levels that are available
6486 through syslog. The prefixes are now:
6488 PANIC, EMERG, EMR => LOG_EMERG
6489 ALERT, ALR => LOG_ALERT
6490 CRIT, CRI => LOG_CRIT
6491 ERROR, ERR => LOG_ERR
6492 WARNING, WARN, WAR => LOG_WARNING
6493 NOTICE, NOTE, NOT => LOG_NOTICE
6494 INFO, INF => LOG_INFO
6495 DEBUG, DBG => LOG_DEBUG
6497 and as before, if none of those prefixes are present at the
6498 beginning of the string, LOG_ERR is chosen.
6500 On Win32, the LOG_* levels are mapped according to this:
6502 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6503 LOG_WARNING => EVENTLOG_WARNING_TYPE
6504 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6508 *) Made it possible to reconfigure with just the configuration
6509 argument "reconf" or "reconfigure". The command line arguments
6510 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6511 and are retrieved from there when reconfiguring.
6515 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6517 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6520 *) The obj_dat.pl script was messing up the sorting of object
6521 names. The reason was that it compared the quoted version
6522 of strings as a result "OCSP" > "OCSP Signing" because
6523 " > SPACE. Changed script to store unquoted versions of
6524 names and add quotes on output. It was also omitting some
6525 names from the lookup table if they were given a default
6526 value (that is if SN is missing it is given the same
6527 value as LN and vice versa), these are now added on the
6528 grounds that if an object has a name we should be able to
6529 look it up. Finally added warning output when duplicate
6530 short or long names are found.
6533 *) Changes needed for Tandem NSK.
6534 [Scott Uroff <scott@xypro.com>]
6536 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6537 RSA_padding_check_SSLv23(), special padding was never detected
6538 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6539 version rollback attacks was not effective.
6541 In s23_clnt.c, don't use special rollback-attack detection padding
6542 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6543 client; similarly, in s23_srvr.c, don't do the rollback check if
6544 SSL 2.0 is the only protocol enabled in the server.
6547 *) Make it possible to get hexdumps of unprintable data with 'openssl
6548 asn1parse'. By implication, the functions ASN1_parse_dump() and
6549 BIO_dump_indent() are added.
6552 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6553 these print out strings and name structures based on various
6554 flags including RFC2253 support and proper handling of
6555 multibyte characters. Added options to the 'x509' utility
6556 to allow the various flags to be set.
6559 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6560 Also change the functions X509_cmp_current_time() and
6561 X509_gmtime_adj() work with an ASN1_TIME structure,
6562 this will enable certificates using GeneralizedTime in validity
6563 dates to be checked.
6566 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6567 negative public key encodings) on by default,
6568 NO_NEG_PUBKEY_BUG can be set to disable it.
6571 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6572 content octets. An i2c_ASN1_OBJECT is unnecessary because
6573 the encoding can be trivially obtained from the structure.
6576 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6577 not read locks (CRYPTO_r_[un]lock).
6580 *) A first attempt at creating official support for shared
6581 libraries through configuration. I've kept it so the
6582 default is static libraries only, and the OpenSSL programs
6583 are always statically linked for now, but there are
6584 preparations for dynamic linking in place.
6585 This has been tested on Linux and Tru64.
6588 *) Randomness polling function for Win9x, as described in:
6589 Peter Gutmann, Software Generation of Practically Strong
6593 *) Fix so PRNG is seeded in req if using an already existing
6597 *) New options to smime application. -inform and -outform
6598 allow alternative formats for the S/MIME message including
6599 PEM and DER. The -content option allows the content to be
6600 specified separately. This should allow things like Netscape
6601 form signing output easier to verify.
6604 *) Fix the ASN1 encoding of tags using the 'long form'.
6607 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6608 STRING types. These convert content octets to and from the
6609 underlying type. The actual tag and length octets are
6610 already assumed to have been read in and checked. These
6611 are needed because all other string types have virtually
6612 identical handling apart from the tag. By having versions
6613 of the ASN1 functions that just operate on content octets
6614 IMPLICIT tagging can be handled properly. It also allows
6615 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6616 and ASN1_INTEGER are identical apart from the tag.
6619 *) Change the handling of OID objects as follows:
6621 - New object identifiers are inserted in objects.txt, following
6622 the syntax given in objects.README.
6623 - objects.pl is used to process obj_mac.num and create a new
6625 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6628 This is currently kind of a hack, and the perl code in objects.pl
6629 isn't very elegant, but it works as I intended. The simplest way
6630 to check that it worked correctly is to look in obj_dat.h and
6631 check the array nid_objs and make sure the objects haven't moved
6632 around (this is important!). Additions are OK, as well as
6633 consistent name changes.
6636 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6639 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6640 The given file adds to whatever has already been seeded into the
6641 random pool through the RANDFILE configuration file option or
6642 environment variable, or the default random state file.
6645 *) mkstack.pl now sorts each macro group into lexical order.
6646 Previously the output order depended on the order the files
6647 appeared in the directory, resulting in needless rewriting
6651 *) Patches to make OpenSSL compile under Win32 again. Mostly
6652 work arounds for the VC++ problem that it treats func() as
6653 func(void). Also stripped out the parts of mkdef.pl that
6654 added extra typesafe functions: these no longer exist.
6657 *) Reorganisation of the stack code. The macros are now all
6658 collected in safestack.h . Each macro is defined in terms of
6659 a "stack macro" of the form SKM_<name>(type, a, b). The
6660 DEBUG_SAFESTACK is now handled in terms of function casts,
6661 this has the advantage of retaining type safety without the
6662 use of additional functions. If DEBUG_SAFESTACK is not defined
6663 then the non typesafe macros are used instead. Also modified the
6664 mkstack.pl script to handle the new form. Needs testing to see
6665 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6666 the default if no major problems. Similar behaviour for ASN1_SET_OF
6667 and PKCS12_STACK_OF.
6670 *) When some versions of IIS use the 'NET' form of private key the
6671 key derivation algorithm is different. Normally MD5(password) is
6672 used as a 128 bit RC4 key. In the modified case
6673 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6674 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6675 as the old Netscape_RSA functions except they have an additional
6676 'sgckey' parameter which uses the modified algorithm. Also added
6677 an -sgckey command line option to the rsa utility. Thanks to
6678 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6679 algorithm to openssl-dev.
6682 *) The evp_local.h macros were using 'c.##kname' which resulted in
6683 invalid expansion on some systems (SCO 5.0.5 for example).
6684 Corrected to 'c.kname'.
6685 [Phillip Porch <root@theporch.com>]
6687 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6688 a STACK of email addresses from a certificate or request, these look
6689 in the subject name and the subject alternative name extensions and
6690 omit any duplicate addresses.
6693 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6694 This makes DSA verification about 2 % faster.
6697 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6698 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6699 plus overhead for 1024 bit moduli).
6700 This makes exponentiations about 0.5 % faster for 1024 bit
6701 exponents (as measured by "openssl speed rsa2048").
6704 *) Rename memory handling macros to avoid conflicts with other
6706 Malloc => OPENSSL_malloc
6707 Malloc_locked => OPENSSL_malloc_locked
6708 Realloc => OPENSSL_realloc
6709 Free => OPENSSL_free
6712 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6713 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6716 *) CygWin32 support.
6717 [John Jarvie <jjarvie@newsguy.com>]
6719 *) The type-safe stack code has been rejigged. It is now only compiled
6720 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6721 by default all type-specific stack functions are "#define"d back to
6722 standard stack functions. This results in more streamlined output
6723 but retains the type-safety checking possibilities of the original
6727 *) The STACK code has been cleaned up, and certain type declarations
6728 that didn't make a lot of sense have been brought in line. This has
6729 also involved a cleanup of sorts in safestack.h to more correctly
6730 map type-safe stack functions onto their plain stack counterparts.
6731 This work has also resulted in a variety of "const"ifications of
6732 lots of the code, especially "_cmp" operations which should normally
6733 be prototyped with "const" parameters anyway.
6736 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6737 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6738 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6739 where all of 'md' is used each time the PRNG is used, but 'state'
6740 is used only indexed by a cyclic counter. As entropy may not be
6741 well distributed from the beginning, 'md' is important as a
6742 chaining variable. However, the output function chains only half
6743 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6744 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6745 in all of 'state' being rewritten, with the new values depending
6746 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6749 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6750 the handshake is continued after ssl_verify_cert_chain();
6751 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6752 can lead to 'unexplainable' connection aborts later.
6753 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6755 *) Major EVP API cipher revision.
6756 Add hooks for extra EVP features. This allows various cipher
6757 parameters to be set in the EVP interface. Support added for variable
6758 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6759 setting of RC2 and RC5 parameters.
6761 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6764 Remove lots of duplicated code from the EVP library. For example *every*
6765 cipher init() function handles the 'iv' in the same way according to the
6766 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6767 for CFB and OFB modes they zero ctx->num.
6769 New functionality allows removal of S/MIME code RC2 hack.
6771 Most of the routines have the same form and so can be declared in terms
6774 By shifting this to the top level EVP_CipherInit() it can be removed from
6775 all individual ciphers. If the cipher wants to handle IVs or keys
6776 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6779 Change lots of functions like EVP_EncryptUpdate() to now return a
6780 value: although software versions of the algorithms cannot fail
6781 any installed hardware versions can.
6784 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6785 this option is set, tolerate broken clients that send the negotiated
6786 protocol version number instead of the requested protocol version
6790 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6791 i.e. non-zero for export ciphersuites, zero otherwise.
6792 Previous versions had this flag inverted, inconsistent with
6793 rsa_tmp_cb (..._TMP_RSA_CB).
6794 [Bodo Moeller; problem reported by Amit Chopra]
6796 *) Add missing DSA library text string. Work around for some IIS
6797 key files with invalid SEQUENCE encoding.
6800 *) Add a document (doc/standards.txt) that list all kinds of standards
6801 and so on that are implemented in OpenSSL.
6804 *) Enhance c_rehash script. Old version would mishandle certificates
6805 with the same subject name hash and wouldn't handle CRLs at all.
6806 Added -fingerprint option to crl utility, to support new c_rehash
6810 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6813 *) Fix for SSL server purpose checking. Server checking was
6814 rejecting certificates which had extended key usage present
6815 but no ssl client purpose.
6816 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6818 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6819 is a little unclear about how a blank password is handled.
6820 Since the password in encoded as a BMPString with terminating
6821 double NULL a zero length password would end up as just the
6822 double NULL. However no password at all is different and is
6823 handled differently in the PKCS#12 key generation code. NS
6824 treats a blank password as zero length. MSIE treats it as no
6825 password on export: but it will try both on import. We now do
6826 the same: PKCS12_parse() tries zero length and no password if
6827 the password is set to "" or NULL (NULL is now a valid password:
6828 it wasn't before) as does the pkcs12 application.
6831 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6832 perror when PEM_read_bio_X509_REQ fails, the error message must
6833 be obtained from the error queue.
6836 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6837 it in ERR_remove_state if appropriate, and change ERR_get_state
6838 accordingly to avoid race conditions (this is necessary because
6839 thread_hash is no longer constant once set).
6842 *) Bugfix for linux-elf makefile.one.
6845 *) RSA_get_default_method() will now cause a default
6846 RSA_METHOD to be chosen if one doesn't exist already.
6847 Previously this was only set during a call to RSA_new()
6848 or RSA_new_method(NULL) meaning it was possible for
6849 RSA_get_default_method() to return NULL.
6852 *) Added native name translation to the existing DSO code
6853 that will convert (if the flag to do so is set) filenames
6854 that are sufficiently small and have no path information
6855 into a canonical native form. Eg. "blah" converted to
6856 "libblah.so" or "blah.dll" etc.
6859 *) New function ERR_error_string_n(e, buf, len) which is like
6860 ERR_error_string(e, buf), but writes at most 'len' bytes
6861 including the 0 terminator. For ERR_error_string_n, 'buf'
6863 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6865 *) CONF library reworked to become more general. A new CONF
6866 configuration file reader "class" is implemented as well as a
6867 new functions (NCONF_*, for "New CONF") to handle it. The now
6868 old CONF_* functions are still there, but are reimplemented to
6869 work in terms of the new functions. Also, a set of functions
6870 to handle the internal storage of the configuration data is
6871 provided to make it easier to write new configuration file
6872 reader "classes" (I can definitely see something reading a
6873 configuration file in XML format, for example), called _CONF_*,
6874 or "the configuration storage API"...
6876 The new configuration file reading functions are:
6878 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6879 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6881 NCONF_default, NCONF_WIN32
6883 NCONF_dump_fp, NCONF_dump_bio
6885 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6886 NCONF_new creates a new CONF object. This works in the same way
6887 as other interfaces in OpenSSL, like the BIO interface.
6888 NCONF_dump_* dump the internal storage of the configuration file,
6889 which is useful for debugging. All other functions take the same
6890 arguments as the old CONF_* functions wth the exception of the
6891 first that must be a `CONF *' instead of a `LHASH *'.
6893 To make it easer to use the new classes with the old CONF_* functions,
6894 the function CONF_set_default_method is provided.
6897 *) Add '-tls1' option to 'openssl ciphers', which was already
6898 mentioned in the documentation but had not been implemented.
6899 (This option is not yet really useful because even the additional
6900 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6903 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6904 OpenSSL-based applications) load shared libraries and bind to
6905 them in a portable way.
6906 [Geoff Thorpe, with contributions from Richard Levitte]
6908 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6910 *) Make sure _lrotl and _lrotr are only used with MSVC.
6912 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6913 (the default implementation of RAND_status).
6915 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6916 to '-clrext' (= clear extensions), as intended and documented.
6917 [Bodo Moeller; inconsistency pointed out by Michael Attili
6920 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6921 was larger than the MD block size.
6922 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6924 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6925 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6926 using the passed key: if the passed key was a private key the result
6927 of X509_print(), for example, would be to print out all the private key
6931 *) des_quad_cksum() byte order bug fix.
6932 [Ulf Möller, using the problem description in krb4-0.9.7, where
6933 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6935 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6937 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6939 *) For easily testing in shell scripts whether some command
6940 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6941 returns with exit code 0 iff no command of the given name is available.
6942 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6943 the output goes to stdout and nothing is printed to stderr.
6944 Additional arguments are always ignored.
6946 Since for each cipher there is a command of the same name,
6947 the 'no-cipher' compilation switches can be tested this way.
6949 ('openssl no-XXX' is not able to detect pseudo-commands such
6950 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6953 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6956 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6957 is set; it will be thrown away anyway because each handshake creates
6959 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6960 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6961 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6962 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6965 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6966 'Q' and 'R' lose their special meanings (quit/renegotiate).
6967 This is part of what -quiet does; unlike -quiet, -ign_eof
6968 does not suppress any output.
6971 *) Add compatibility options to the purpose and trust code. The
6972 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6973 accepts a certificate or CA, this was the previous behaviour,
6974 with all the associated security issues.
6976 X509_TRUST_COMPAT is the old trust behaviour: only and
6977 automatically trust self signed roots in certificate store. A
6978 new trust setting X509_TRUST_DEFAULT is used to specify that
6979 a purpose has no associated trust setting and it should instead
6980 use the value in the default purpose.
6983 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6984 and fix a memory leak.
6987 *) In util/mkerr.pl (which implements 'make errors'), preserve
6988 reason strings from the previous version of the .c file, as
6989 the default to have only downcase letters (and digits) in
6990 automatically generated reasons codes is not always appropriate.
6993 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6994 using strerror. Previously, ERR_reason_error_string() returned
6995 library names as reason strings for SYSerr; but SYSerr is a special
6996 case where small numbers are errno values, not library numbers.
6999 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7000 converts DSA parameters into DH parameters. (When creating parameters,
7001 DSA_generate_parameters is used.)
7004 *) Include 'length' (recommended exponent length) in C code generated
7005 by 'openssl dhparam -C'.
7008 *) The second argument to set_label in perlasm was already being used
7009 so couldn't be used as a "file scope" flag. Moved to third argument
7013 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7014 instead of RAND_bytes for encryption IVs and salts.
7017 *) Include RAND_status() into RAND_METHOD instead of implementing
7018 it only for md_rand.c Otherwise replacing the PRNG by calling
7019 RAND_set_rand_method would be impossible.
7022 *) Don't let DSA_generate_key() enter an infinite loop if the random
7023 number generation fails.
7026 *) New 'rand' application for creating pseudo-random output.
7029 *) Added configuration support for Linux/IA64
7030 [Rolf Haberrecker <rolf@suse.de>]
7032 *) Assembler module support for Mingw32.
7035 *) Shared library support for HPUX (in shlib/).
7036 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7038 *) Shared library support for Solaris gcc.
7039 [Lutz Behnke <behnke@trustcenter.de>]
7041 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7043 *) PKCS7_encrypt() was adding text MIME headers twice because they
7044 were added manually and by SMIME_crlf_copy().
7047 *) In bntest.c don't call BN_rand with zero bits argument.
7048 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7050 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7051 case was implemented. This caused BN_div_recp() to fail occasionally.
7054 *) Add an optional second argument to the set_label() in the perl
7055 assembly language builder. If this argument exists and is set
7056 to 1 it signals that the assembler should use a symbol whose
7057 scope is the entire file, not just the current function. This
7058 is needed with MASM which uses the format label:: for this scope.
7059 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7061 *) Change the ASN1 types so they are typedefs by default. Before
7062 almost all types were #define'd to ASN1_STRING which was causing
7063 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7067 *) Change names of new functions to the new get1/get0 naming
7068 convention: After 'get1', the caller owns a reference count
7069 and has to call ..._free; 'get0' returns a pointer to some
7070 data structure without incrementing reference counters.
7071 (Some of the existing 'get' functions increment a reference
7072 counter, some don't.)
7073 Similarly, 'set1' and 'add1' functions increase reference
7074 counters or duplicate objects.
7077 *) Allow for the possibility of temp RSA key generation failure:
7078 the code used to assume it always worked and crashed on failure.
7081 *) Fix potential buffer overrun problem in BIO_printf().
7082 [Ulf Möller, using public domain code by Patrick Powell; problem
7083 pointed out by David Sacerdote <das33@cornell.edu>]
7085 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7086 RAND_egd() and RAND_status(). In the command line application,
7087 the EGD socket can be specified like a seed file using RANDFILE
7091 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7092 Some CAs (e.g. Verisign) distribute certificates in this form.
7095 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7096 list to exclude them. This means that no special compilation option
7097 is needed to use anonymous DH: it just needs to be included in the
7101 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7102 EVP_MD_type. The old functionality is available in a new macro called
7103 EVP_MD_md(). Change code that uses it and update docs.
7106 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7107 where the 'void *' argument is replaced by a function pointer argument.
7108 Previously 'void *' was abused to point to functions, which works on
7109 many platforms, but is not correct. As these functions are usually
7110 called by macros defined in OpenSSL header files, most source code
7111 should work without changes.
7114 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7115 sections with information on -D... compiler switches used for
7116 compiling the library so that applications can see them. To enable
7117 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7118 must be defined. E.g.,
7119 #define OPENSSL_ALGORITHM_DEFINES
7120 #include <openssl/opensslconf.h>
7121 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7122 [Richard Levitte, Ulf and Bodo Möller]
7124 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7128 *) Change the 'other' type in certificate aux info to a STACK_OF
7129 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7130 the required ASN1 format: arbitrary types determined by an OID.
7133 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7134 argument to 'req'. This is not because the function is newer or
7135 better than others it just uses the work 'NEW' in the certificate
7136 request header lines. Some software needs this.
7139 *) Reorganise password command line arguments: now passwords can be
7140 obtained from various sources. Delete the PEM_cb function and make
7141 it the default behaviour: i.e. if the callback is NULL and the
7142 usrdata argument is not NULL interpret it as a null terminated pass
7143 phrase. If usrdata and the callback are NULL then the pass phrase
7144 is prompted for as usual.
7147 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7148 the support is automatically enabled. The resulting binaries will
7149 autodetect the card and use it if present.
7150 [Ben Laurie and Compaq Inc.]
7152 *) Work around for Netscape hang bug. This sends certificate request
7153 and server done in one record. Since this is perfectly legal in the
7154 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7155 the bugs/SSLv3 entry for more info.
7158 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7161 *) Add -rand argument to smime and pkcs12 applications and read/write
7165 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7168 *) Add command line password options to the remaining applications.
7171 *) Bug fix for BN_div_recp() for numerators with an even number of
7175 *) More tests in bntest.c, and changed test_bn output.
7178 *) ./config recognizes MacOS X now.
7181 *) Bug fix for BN_div() when the first words of num and divsor are
7182 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7185 *) Add support for various broken PKCS#8 formats, and command line
7186 options to produce them.
7189 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7190 get temporary BIGNUMs from a BN_CTX.
7193 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7197 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7198 include a #define from the old name to the new. The original intent
7199 was that statically linked binaries could for example just call
7200 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7201 link with digests. This never worked becayse SSLeay_add_all_digests()
7202 and SSLeay_add_all_ciphers() were in the same source file so calling
7203 one would link with the other. They are now in separate source files.
7206 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7209 *) Use a less unusual form of the Miller-Rabin primality test (it used
7210 a binary algorithm for exponentiation integrated into the Miller-Rabin
7211 loop, our standard modexp algorithms are faster).
7214 *) Support for the EBCDIC character set completed.
7215 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7217 *) Source code cleanups: use const where appropriate, eliminate casts,
7218 use void * instead of char * in lhash.
7221 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7222 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7223 this the server could overwrite ephemeral keys that the client
7227 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7228 using 50 iterations of the Rabin-Miller test.
7230 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7231 iterations of the Rabin-Miller test as required by the appendix
7232 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7233 As BN_is_prime_fasttest includes trial division, DSA parameter
7234 generation becomes much faster.
7236 This implies a change for the callback functions in DSA_is_prime
7237 and DSA_generate_parameters: The callback function is called once
7238 for each positive witness in the Rabin-Miller test, not just
7239 occasionally in the inner loop; and the parameters to the
7240 callback function now provide an iteration count for the outer
7241 loop rather than for the current invocation of the inner loop.
7242 DSA_generate_parameters additionally can call the callback
7243 function with an 'iteration count' of -1, meaning that a
7244 candidate has passed the trial division test (when q is generated
7245 from an application-provided seed, trial division is skipped).
7248 *) New function BN_is_prime_fasttest that optionally does trial
7249 division before starting the Rabin-Miller test and has
7250 an additional BN_CTX * argument (whereas BN_is_prime always
7251 has to allocate at least one BN_CTX).
7252 'callback(1, -1, cb_arg)' is called when a number has passed the
7253 trial division stage.
7256 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7260 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7263 *) New function BN_pseudo_rand().
7266 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7267 bignum version of BN_from_montgomery() with the working code from
7268 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7272 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7273 made it impossible to use the same SSL_SESSION data structure in
7274 SSL2 clients in multiple threads.
7277 *) The return value of RAND_load_file() no longer counts bytes obtained
7278 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7279 to seed the PRNG (previously an explicit byte count was required).
7280 [Ulf Möller, Bodo Möller]
7282 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7283 used (char *) instead of (void *) and had casts all over the place.
7286 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7289 *) Retain source code compatibility for BN_prime_checks macro:
7290 BN_is_prime(..., BN_prime_checks, ...) now uses
7291 BN_prime_checks_for_size to determine the appropriate number of
7292 Rabin-Miller iterations.
7295 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7296 DH_CHECK_P_NOT_SAFE_PRIME.
7297 (Check if this is true? OpenPGP calls them "strong".)
7300 *) Merge the functionality of "dh" and "gendh" programs into a new program
7301 "dhparam". The old programs are retained for now but will handle DH keys
7302 (instead of parameters) in future.
7305 *) Make the ciphers, s_server and s_client programs check the return values
7306 when a new cipher list is set.
7309 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7310 ciphers. Before when the 56bit ciphers were enabled the sorting was
7313 The syntax for the cipher sorting has been extended to support sorting by
7314 cipher-strength (using the strength_bits hard coded in the tables).
7315 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7317 Fix a bug in the cipher-command parser: when supplying a cipher command
7318 string with an "undefined" symbol (neither command nor alphanumeric
7319 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7320 an error is flagged.
7322 Due to the strength-sorting extension, the code of the
7323 ssl_create_cipher_list() function was completely rearranged. I hope that
7324 the readability was also increased :-)
7325 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7327 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7328 for the first serial number and places 2 in the serial number file. This
7329 avoids problems when the root CA is created with serial number zero and
7330 the first user certificate has the same issuer name and serial number
7334 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7335 the new code. Add documentation for this stuff.
7338 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7339 X509_*() to X509at_*() on the grounds that they don't handle X509
7340 structures and behave in an analagous way to the X509v3 functions:
7341 they shouldn't be called directly but wrapper functions should be used
7344 So we also now have some wrapper functions that call the X509at functions
7345 when passed certificate requests. (TO DO: similar things can be done with
7346 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7347 things. Some of these need some d2i or i2d and print functionality
7348 because they handle more complex structures.)
7351 *) Add missing #ifndefs that caused missing symbols when building libssl
7352 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7353 NO_RSA in ssl/s2*.c.
7354 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7356 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7357 has a return value which indicates the quality of the random data
7358 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7359 error queue. New function RAND_pseudo_bytes() generates output that is
7360 guaranteed to be unique but not unpredictable. RAND_add is like
7361 RAND_seed, but takes an extra argument for an entropy estimate
7362 (RAND_seed always assumes full entropy).
7365 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7366 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7367 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7368 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7369 false-positive rate of at most 2^-80 for random input.
7372 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7375 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7376 in the 0.9.5 release), this returns the chain
7377 from an X509_CTX structure with a dup of the stack and all
7378 the X509 reference counts upped: so the stack will exist
7379 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7382 Also make SSL_SESSION_print() print out the verify return
7386 *) Add manpage for the pkcs12 command. Also change the default
7387 behaviour so MAC iteration counts are used unless the new
7388 -nomaciter option is used. This improves file security and
7389 only older versions of MSIE (4.0 for example) need it.
7392 *) Honor the no-xxx Configure options when creating .DEF files.
7395 *) Add PKCS#10 attributes to field table: challengePassword,
7396 unstructuredName and unstructuredAddress. These are taken from
7397 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7398 international characters are used.
7400 More changes to X509_ATTRIBUTE code: allow the setting of types
7401 based on strings. Remove the 'loc' parameter when adding
7402 attributes because these will be a SET OF encoding which is sorted
7406 *) Initial changes to the 'req' utility to allow request generation
7407 automation. This will allow an application to just generate a template
7408 file containing all the field values and have req construct the
7411 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7412 used all over the place including certificate requests and PKCS#7
7413 structures. They are currently handled manually where necessary with
7414 some primitive wrappers for PKCS#7. The new functions behave in a
7415 manner analogous to the X509 extension functions: they allow
7416 attributes to be looked up by NID and added.
7418 Later something similar to the X509V3 code would be desirable to
7419 automatically handle the encoding, decoding and printing of the
7420 more complex types. The string types like challengePassword can
7421 be handled by the string table functions.
7423 Also modified the multi byte string table handling. Now there is
7424 a 'global mask' which masks out certain types. The table itself
7425 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7426 is useful when for example there is only one permissible type
7427 (as in countryName) and using the mask might result in no valid
7431 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7432 SSL_get_peer_finished to allow applications to obtain the latest
7433 Finished messages sent to the peer or expected from the peer,
7434 respectively. (SSL_get_peer_finished is usually the Finished message
7435 actually received from the peer, otherwise the protocol will be aborted.)
7437 As the Finished message are message digests of the complete handshake
7438 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7439 be used for external authentication procedures when the authentication
7440 provided by SSL/TLS is not desired or is not enough.
7443 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7444 the host supports BWX extension and if Compaq C is present on the
7445 $PATH. Just exploiting of the BWX extension results in 20-30%
7446 performance kick for some algorithms, e.g. DES and RC4 to mention
7447 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7451 *) Add support for MS "fast SGC". This is arguably a violation of the
7452 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7453 weak crypto and after checking the certificate is SGC a second one
7454 with strong crypto. MS SGC stops the first handshake after receiving
7455 the server certificate message and sends a second client hello. Since
7456 a server will typically do all the time consuming operations before
7457 expecting any further messages from the client (server key exchange
7458 is the most expensive) there is little difference between the two.
7460 To get OpenSSL to support MS SGC we have to permit a second client
7461 hello message after we have sent server done. In addition we have to
7462 reset the MAC if we do get this second client hello.
7465 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7466 if a DER encoded private key is RSA or DSA traditional format. Changed
7467 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7468 format DER encoded private key. Newer code should use PKCS#8 format which
7469 has the key type encoded in the ASN1 structure. Added DER private key
7470 support to pkcs8 application.
7473 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7474 ciphersuites has been selected (as required by the SSL 3/TLS 1
7475 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7476 is set, we interpret this as a request to violate the specification
7477 (the worst that can happen is a handshake failure, and 'correct'
7478 behaviour would result in a handshake failure anyway).
7481 *) In SSL_CTX_add_session, take into account that there might be multiple
7482 SSL_SESSION structures with the same session ID (e.g. when two threads
7483 concurrently obtain them from an external cache).
7484 The internal cache can handle only one SSL_SESSION with a given ID,
7485 so if there's a conflict, we now throw out the old one to achieve
7489 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7490 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7491 some routines that use cipher OIDs: some ciphers do not have OIDs
7492 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7496 *) Simplify the trust setting structure and code. Now we just have
7497 two sequences of OIDs for trusted and rejected settings. These will
7498 typically have values the same as the extended key usage extension
7499 and any application specific purposes.
7501 The trust checking code now has a default behaviour: it will just
7502 check for an object with the same NID as the passed id. Functions can
7503 be provided to override either the default behaviour or the behaviour
7504 for a given id. SSL client, server and email already have functions
7505 in place for compatibility: they check the NID and also return "trusted"
7506 if the certificate is self signed.
7509 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7510 traditional format into an EVP_PKEY structure.
7513 *) Add a password callback function PEM_cb() which either prompts for
7514 a password if usr_data is NULL or otherwise assumes it is a null
7515 terminated password. Allow passwords to be passed on command line
7516 environment or config files in a few more utilities.
7519 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7520 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7521 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7522 Update documentation.
7525 *) Support for ASN1 "NULL" type. This could be handled before by using
7526 ASN1_TYPE but there wasn't any function that would try to read a NULL
7527 and produce an error if it couldn't. For compatibility we also have
7528 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7529 don't allocate anything because they don't need to.
7532 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7534 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7536 *) Rebuild of the memory allocation routines used by OpenSSL code and
7537 possibly others as well. The purpose is to make an interface that
7538 provide hooks so anyone can build a separate set of allocation and
7539 deallocation routines to be used by OpenSSL, for example memory
7540 pool implementations, or something else, which was previously hard
7541 since Malloc(), Realloc() and Free() were defined as macros having
7542 the values malloc, realloc and free, respectively (except for Win32
7543 compilations). The same is provided for memory debugging code.
7544 OpenSSL already comes with functionality to find memory leaks, but
7545 this gives people a chance to debug other memory problems.
7547 With these changes, a new set of functions and macros have appeared:
7549 CRYPTO_set_mem_debug_functions() [F]
7550 CRYPTO_get_mem_debug_functions() [F]
7551 CRYPTO_dbg_set_options() [F]
7552 CRYPTO_dbg_get_options() [F]
7553 CRYPTO_malloc_debug_init() [M]
7555 The memory debug functions are NULL by default, unless the library
7556 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7557 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7558 gives the standard debugging functions that come with OpenSSL) or
7559 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7560 provided by the library user) must be used. When the standard
7561 debugging functions are used, CRYPTO_dbg_set_options can be used to
7562 request additional information:
7563 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7564 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7566 Also, things like CRYPTO_set_mem_functions will always give the
7567 expected result (the new set of functions is used for allocation
7568 and deallocation) at all times, regardless of platform and compiler
7571 To finish it up, some functions that were never use in any other
7572 way than through macros have a new API and new semantic:
7575 CRYPTO_dbg_realloc()
7578 All macros of value have retained their old syntax.
7579 [Richard Levitte and Bodo Moeller]
7581 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7582 ordering of SMIMECapabilities wasn't in "strength order" and there
7583 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7587 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7588 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7589 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7591 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7592 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7593 functionality to handle multipart/signed properly) and a utility
7594 called 'smime' to call all this stuff. This is based on code I
7595 originally wrote for Celo who have kindly allowed it to be
7596 included in OpenSSL.
7599 *) Add variants des_set_key_checked and des_set_key_unchecked of
7600 des_set_key (aka des_key_sched). Global variable des_check_key
7601 decides which of these is called by des_set_key; this way
7602 des_check_key behaves as it always did, but applications and
7603 the library itself, which was buggy for des_check_key == 1,
7604 have a cleaner way to pick the version they need.
7607 *) New function PKCS12_newpass() which changes the password of a
7611 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7612 dynamic mix. In both cases the ids can be used as an index into the
7613 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7614 functions so they accept a list of the field values and the
7615 application doesn't need to directly manipulate the X509_TRUST
7619 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7623 *) Modify the way the V3 extension code looks up extensions. This now
7624 works in a similar way to the object code: we have some "standard"
7625 extensions in a static table which is searched with OBJ_bsearch()
7626 and the application can add dynamic ones if needed. The file
7627 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7628 updated whenever a new extension is added to the core code and kept
7629 in ext_nid order. There is a simple program 'tabtest.c' which checks
7630 this. New extensions are not added too often so this file can readily
7631 be maintained manually.
7633 There are two big advantages in doing things this way. The extensions
7634 can be looked up immediately and no longer need to be "added" using
7635 X509V3_add_standard_extensions(): this function now does nothing.
7636 [Side note: I get *lots* of email saying the extension code doesn't
7637 work because people forget to call this function]
7638 Also no dynamic allocation is done unless new extensions are added:
7639 so if we don't add custom extensions there is no need to call
7640 X509V3_EXT_cleanup().
7643 *) Modify enc utility's salting as follows: make salting the default. Add a
7644 magic header, so unsalted files fail gracefully instead of just decrypting
7645 to garbage. This is because not salting is a big security hole, so people
7646 should be discouraged from doing it.
7649 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7650 digest to be passed on the command line but it only used this
7651 parameter when signing a certificate. Modified so all relevant
7652 operations are affected by the digest parameter including the
7653 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7654 DSA key was used because it didn't fix the digest.
7657 *) Initial certificate chain verify code. Currently tests the untrusted
7658 certificates for consistency with the verify purpose (which is set
7659 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7661 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7662 this is because it will reject chains with invalid extensions whereas
7663 every previous version of OpenSSL and SSLeay made no checks at all.
7665 Trust code: checks the root CA for the relevant trust settings. Trust
7666 settings have an initial value consistent with the verify purpose: e.g.
7667 if the verify purpose is for SSL client use it expects the CA to be
7668 trusted for SSL client use. However the default value can be changed to
7669 permit custom trust settings: one example of this would be to only trust
7670 certificates from a specific "secure" set of CAs.
7672 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7673 which should be used for version portability: especially since the
7674 verify structure is likely to change more often now.
7676 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7677 to set them. If not set then assume SSL clients will verify SSL servers
7680 Two new options to the verify program: -untrusted allows a set of
7681 untrusted certificates to be passed in and -purpose which sets the
7682 intended purpose of the certificate. If a purpose is set then the
7683 new chain verify code is used to check extension consistency.
7686 *) Support for the authority information access extension.
7689 *) Modify RSA and DSA PEM read routines to transparently handle
7690 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7691 public keys in a format compatible with certificate
7692 SubjectPublicKeyInfo structures. Unfortunately there were already
7693 functions called *_PublicKey_* which used various odd formats so
7694 these are retained for compatibility: however the DSA variants were
7695 never in a public release so they have been deleted. Changed dsa/rsa
7696 utilities to handle the new format: note no releases ever handled public
7697 keys so we should be OK.
7699 The primary motivation for this change is to avoid the same fiasco
7700 that dogs private keys: there are several incompatible private key
7701 formats some of which are standard and some OpenSSL specific and
7702 require various evil hacks to allow partial transparent handling and
7703 even then it doesn't work with DER formats. Given the option anything
7704 other than PKCS#8 should be dumped: but the other formats have to
7705 stay in the name of compatibility.
7707 With public keys and the benefit of hindsight one standard format
7708 is used which works with EVP_PKEY, RSA or DSA structures: though
7709 it clearly returns an error if you try to read the wrong kind of key.
7711 Added a -pubkey option to the 'x509' utility to output the public key.
7712 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7713 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7714 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7715 that do the same as the EVP_PKEY_assign_*() except they up the
7716 reference count of the added key (they don't "swallow" the
7720 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7721 CRLs would fail if the file contained no certificates or no CRLs:
7722 added a new function to read in both types and return the number
7723 read: this means that if none are read it will be an error. The
7724 DER versions of the certificate and CRL reader would always fail
7725 because it isn't possible to mix certificates and CRLs in DER format
7726 without choking one or the other routine. Changed this to just read
7727 a certificate: this is the best we can do. Also modified the code
7728 in apps/verify.c to take notice of return codes: it was previously
7729 attempting to read in certificates from NULL pointers and ignoring
7730 any errors: this is one reason why the cert and CRL reader seemed
7731 to work. It doesn't check return codes from the default certificate
7732 routines: these may well fail if the certificates aren't installed.
7735 *) Code to support otherName option in GeneralName.
7738 *) First update to verify code. Change the verify utility
7739 so it warns if it is passed a self signed certificate:
7740 for consistency with the normal behaviour. X509_verify
7741 has been modified to it will now verify a self signed
7742 certificate if *exactly* the same certificate appears
7743 in the store: it was previously impossible to trust a
7744 single self signed certificate. This means that:
7745 openssl verify ss.pem
7746 now gives a warning about a self signed certificate but
7747 openssl verify -CAfile ss.pem ss.pem
7751 *) For servers, store verify_result in SSL_SESSION data structure
7752 (and add it to external session representation).
7753 This is needed when client certificate verifications fails,
7754 but an application-provided verification callback (set by
7755 SSL_CTX_set_cert_verify_callback) allows accepting the session
7756 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7757 but returns 1): When the session is reused, we have to set
7758 ssl->verify_result to the appropriate error code to avoid
7760 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7762 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7763 case in PKCS7_dataInit() where the signed PKCS7 structure
7764 didn't contain any existing data because it was being created.
7765 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7767 *) Add a salt to the key derivation routines in enc.c. This
7768 forms the first 8 bytes of the encrypted file. Also add a
7769 -S option to allow a salt to be input on the command line.
7772 *) New function X509_cmp(). Oddly enough there wasn't a function
7773 to compare two certificates. We do this by working out the SHA1
7774 hash and comparing that. X509_cmp() will be needed by the trust
7778 *) SSL_get1_session() is like SSL_get_session(), but increments
7779 the reference count in the SSL_SESSION returned.
7780 [Geoff Thorpe <geoff@eu.c2.net>]
7782 *) Fix for 'req': it was adding a null to request attributes.
7783 Also change the X509_LOOKUP and X509_INFO code to handle
7784 certificate auxiliary information.
7787 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7791 *) Add the possibility to add extra information to the memory leak
7792 detecting output, to form tracebacks, showing from where each
7793 allocation was originated: CRYPTO_push_info("constant string") adds
7794 the string plus current file name and line number to a per-thread
7795 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7796 is like calling CYRPTO_pop_info() until the stack is empty.
7797 Also updated memory leak detection code to be multi-thread-safe.
7800 *) Add options -text and -noout to pkcs7 utility and delete the
7801 encryption options which never did anything. Update docs.
7804 *) Add options to some of the utilities to allow the pass phrase
7805 to be included on either the command line (not recommended on
7806 OSes like Unix) or read from the environment. Update the
7807 manpages and fix a few bugs.
7810 *) Add a few manpages for some of the openssl commands.
7813 *) Fix the -revoke option in ca. It was freeing up memory twice,
7814 leaking and not finding already revoked certificates.
7817 *) Extensive changes to support certificate auxiliary information.
7818 This involves the use of X509_CERT_AUX structure and X509_AUX
7819 functions. An X509_AUX function such as PEM_read_X509_AUX()
7820 can still read in a certificate file in the usual way but it
7821 will also read in any additional "auxiliary information". By
7822 doing things this way a fair degree of compatibility can be
7823 retained: existing certificates can have this information added
7824 using the new 'x509' options.
7826 Current auxiliary information includes an "alias" and some trust
7827 settings. The trust settings will ultimately be used in enhanced
7828 certificate chain verification routines: currently a certificate
7829 can only be trusted if it is self signed and then it is trusted
7833 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7834 The problem was that one of the replacement routines had not been working
7835 since SSLeay releases. For now the offending routine has been replaced
7836 with non-optimised assembler. Even so, this now gives around 95%
7837 performance improvement for 1024 bit RSA signs.
7840 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7841 handling. Most clients have the effective key size in bits equal to
7842 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7843 A few however don't do this and instead use the size of the decrypted key
7844 to determine the RC2 key length and the AlgorithmIdentifier to determine
7845 the effective key length. In this case the effective key length can still
7846 be 40 bits but the key length can be 168 bits for example. This is fixed
7847 by manually forcing an RC2 key into the EVP_PKEY structure because the
7848 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7849 the key length and effective key length are equal.
7852 *) Add a bunch of functions that should simplify the creation of
7853 X509_NAME structures. Now you should be able to do:
7854 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7855 and have it automatically work out the correct field type and fill in
7856 the structures. The more adventurous can try:
7857 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7858 and it will (hopefully) work out the correct multibyte encoding.
7861 *) Change the 'req' utility to use the new field handling and multibyte
7862 copy routines. Before the DN field creation was handled in an ad hoc
7863 way in req, ca, and x509 which was rather broken and didn't support
7864 BMPStrings or UTF8Strings. Since some software doesn't implement
7865 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7866 using the dirstring_type option. See the new comment in the default
7867 openssl.cnf for more info.
7870 *) Make crypto/rand/md_rand.c more robust:
7871 - Assure unique random numbers after fork().
7872 - Make sure that concurrent threads access the global counter and
7873 md serializably so that we never lose entropy in them
7874 or use exactly the same state in multiple threads.
7875 Access to the large state is not always serializable because
7876 the additional locking could be a performance killer, and
7877 md should be large enough anyway.
7880 *) New file apps/app_rand.c with commonly needed functionality
7881 for handling the random seed file.
7883 Use the random seed file in some applications that previously did not:
7885 dsaparam -genkey (which also ignored its '-rand' option),
7888 x509 (when signing).
7889 Except on systems with /dev/urandom, it is crucial to have a random
7890 seed file at least for key creation, DSA signing, and for DH exchanges;
7891 for RSA signatures we could do without one.
7893 gendh and gendsa (unlike genrsa) used to read only the first byte
7894 of each file listed in the '-rand' option. The function as previously
7895 found in genrsa is now in app_rand.c and is used by all programs
7896 that support '-rand'.
7899 *) In RAND_write_file, use mode 0600 for creating files;
7900 don't just chmod when it may be too late.
7903 *) Report an error from X509_STORE_load_locations
7904 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7907 *) New function ASN1_mbstring_copy() this copies a string in either
7908 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7909 into an ASN1_STRING type. A mask of permissible types is passed
7910 and it chooses the "minimal" type to use or an error if not type
7914 *) Add function equivalents to the various macros in asn1.h. The old
7915 macros are retained with an M_ prefix. Code inside the library can
7916 use the M_ macros. External code (including the openssl utility)
7917 should *NOT* in order to be "shared library friendly".
7920 *) Add various functions that can check a certificate's extensions
7921 to see if it usable for various purposes such as SSL client,
7922 server or S/MIME and CAs of these types. This is currently
7923 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7924 verification. Also added a -purpose flag to x509 utility to
7925 print out all the purposes.
7928 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7932 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7933 for, obtain and decode and extension and obtain its critical flag.
7934 This allows all the necessary extension code to be handled in a
7935 single function call.
7938 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7939 platforms. See crypto/rc4/rc4_enc.c for further details.
7942 *) New -noout option to asn1parse. This causes no output to be produced
7943 its main use is when combined with -strparse and -out to extract data
7944 from a file (which may not be in ASN.1 format).
7947 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7948 when producing the local key id.
7949 [Richard Levitte <levitte@stacken.kth.se>]
7951 *) New option -dhparam in s_server. This allows a DH parameter file to be
7952 stated explicitly. If it is not stated then it tries the first server
7953 certificate file. The previous behaviour hard coded the filename
7957 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7958 a public key to be input or output. For example:
7959 openssl rsa -in key.pem -pubout -out pubkey.pem
7960 Also added necessary DSA public key functions to handle this.
7963 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7964 in the message. This was handled by allowing
7965 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7966 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7968 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7969 to the end of the strings whereas this didn't. This would cause problems
7970 if strings read with d2i_ASN1_bytes() were later modified.
7971 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7973 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7974 data and it contains EOF it will end up returning an error. This is
7975 caused by input 46 bytes long. The cause is due to the way base64
7976 BIOs find the start of base64 encoded data. They do this by trying a
7977 trial decode on each line until they find one that works. When they
7978 do a flag is set and it starts again knowing it can pass all the
7979 data directly through the decoder. Unfortunately it doesn't reset
7980 the context it uses. This means that if EOF is reached an attempt
7981 is made to pass two EOFs through the context and this causes the
7982 resulting error. This can also cause other problems as well. As is
7983 usual with these problems it takes *ages* to find and the fix is
7984 trivial: move one line.
7985 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7987 *) Ugly workaround to get s_client and s_server working under Windows. The
7988 old code wouldn't work because it needed to select() on sockets and the
7989 tty (for keypresses and to see if data could be written). Win32 only
7990 supports select() on sockets so we select() with a 1s timeout on the
7991 sockets and then see if any characters are waiting to be read, if none
7992 are present then we retry, we also assume we can always write data to
7993 the tty. This isn't nice because the code then blocks until we've
7994 received a complete line of data and it is effectively polling the
7995 keyboard at 1s intervals: however it's quite a bit better than not
7996 working at all :-) A dedicated Windows application might handle this
7997 with an event loop for example.
8000 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8001 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8002 will be called when RSA_sign() and RSA_verify() are used. This is useful
8003 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8004 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8005 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8006 This necessitated the support of an extra signature type NID_md5_sha1
8007 for SSL signatures and modifications to the SSL library to use it instead
8008 of calling RSA_public_decrypt() and RSA_private_encrypt().
8011 *) Add new -verify -CAfile and -CApath options to the crl program, these
8012 will lookup a CRL issuers certificate and verify the signature in a
8013 similar way to the verify program. Tidy up the crl program so it
8014 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8015 less strict. It will now permit CRL extensions even if it is not
8016 a V2 CRL: this will allow it to tolerate some broken CRLs.
8019 *) Initialize all non-automatic variables each time one of the openssl
8020 sub-programs is started (this is necessary as they may be started
8021 multiple times from the "OpenSSL>" prompt).
8022 [Lennart Bang, Bodo Moeller]
8024 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8025 removing all other RSA functionality (this is what NO_RSA does). This
8026 is so (for example) those in the US can disable those operations covered
8027 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8031 *) Non-copying interface to BIO pairs.
8032 (still largely untested)
8035 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8036 ASCII string. This was handled independently in various places before.
8039 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8040 UTF8 strings a character at a time.
8043 *) Use client_version from client hello to select the protocol
8044 (s23_srvr.c) and for RSA client key exchange verification
8045 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8048 *) Add various utility functions to handle SPKACs, these were previously
8049 handled by poking round in the structure internals. Added new function
8050 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8051 print, verify and generate SPKACs. Based on an original idea from
8052 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8055 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8058 *) Allow the config file extension section to be overwritten on the
8059 command line. Based on an original idea from Massimiliano Pala
8060 <madwolf@comune.modena.it>. The new option is called -extensions
8061 and can be applied to ca, req and x509. Also -reqexts to override
8062 the request extensions in req and -crlexts to override the crl extensions
8066 *) Add new feature to the SPKAC handling in ca. Now you can include
8067 the same field multiple times by preceding it by "XXXX." for example:
8070 this is the same syntax as used in the req config file.
8073 *) Allow certificate extensions to be added to certificate requests. These
8074 are specified in a 'req_extensions' option of the req section of the
8075 config file. They can be printed out with the -text option to req but
8076 are otherwise ignored at present.
8079 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8080 data read consists of only the final block it would not decrypted because
8081 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8082 A misplaced 'break' also meant the decrypted final block might not be
8083 copied until the next read.
8086 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8087 a few extra parameters to the DH structure: these will be useful if
8088 for example we want the value of 'q' or implement X9.42 DH.
8091 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8092 provides hooks that allow the default DSA functions or functions on a
8093 "per key" basis to be replaced. This allows hardware acceleration and
8094 hardware key storage to be handled without major modification to the
8095 library. Also added low level modexp hooks and CRYPTO_EX structure and
8096 associated functions.
8099 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8100 as "read only": it can't be written to and the buffer it points to will
8101 not be freed. Reading from a read only BIO is much more efficient than
8102 a normal memory BIO. This was added because there are several times when
8103 an area of memory needs to be read from a BIO. The previous method was
8104 to create a memory BIO and write the data to it, this results in two
8105 copies of the data and an O(n^2) reading algorithm. There is a new
8106 function BIO_new_mem_buf() which creates a read only memory BIO from
8107 an area of memory. Also modified the PKCS#7 routines to use read only
8111 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8112 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8113 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8114 but a retry condition occured while trying to read the rest.
8117 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8118 NID_pkcs7_encrypted by default: this was wrong since this should almost
8119 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8120 the encrypted data type: this is a more sensible place to put it and it
8121 allows the PKCS#12 code to be tidied up that duplicated this
8125 *) Changed obj_dat.pl script so it takes its input and output files on
8126 the command line. This should avoid shell escape redirection problems
8130 *) Initial support for certificate extension requests, these are included
8131 in things like Xenroll certificate requests. Included functions to allow
8132 extensions to be obtained and added.
8135 *) -crlf option to s_client and s_server for sending newlines as
8136 CRLF (as required by many protocols).
8139 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8141 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8142 [Ralf S. Engelschall]
8144 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8145 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8147 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8151 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8152 DH parameters/keys (q is lost during that conversion, but the resulting
8153 DH parameters contain its length).
8155 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8156 much faster than DH_generate_parameters (which creates parameters
8157 where p = 2*q + 1), and also the smaller q makes DH computations
8158 much more efficient (160-bit exponentiation instead of 1024-bit
8159 exponentiation); so this provides a convenient way to support DHE
8160 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8161 utter importance to use
8162 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8164 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8165 when such DH parameters are used, because otherwise small subgroup
8166 attacks may become possible!
8169 *) Avoid memory leak in i2d_DHparams.
8172 *) Allow the -k option to be used more than once in the enc program:
8173 this allows the same encrypted message to be read by multiple recipients.
8176 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8177 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8178 it will always use the numerical form of the OID, even if it has a short
8182 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8183 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8184 otherwise bn_mod_exp was called. In the case of hardware keys for example
8185 no private key components need be present and it might store extra data
8186 in the RSA structure, which cannot be accessed from bn_mod_exp.
8187 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8188 private key operations.
8191 *) Added support for SPARC Linux.
8194 *) pem_password_cb function type incompatibly changed from
8195 typedef int pem_password_cb(char *buf, int size, int rwflag);
8197 ....(char *buf, int size, int rwflag, void *userdata);
8198 so that applications can pass data to their callbacks:
8199 The PEM[_ASN1]_{read,write}... functions and macros now take an
8200 additional void * argument, which is just handed through whenever
8201 the password callback is called.
8202 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8204 New function SSL_CTX_set_default_passwd_cb_userdata.
8206 Compatibility note: As many C implementations push function arguments
8207 onto the stack in reverse order, the new library version is likely to
8208 interoperate with programs that have been compiled with the old
8209 pem_password_cb definition (PEM_whatever takes some data that
8210 happens to be on the stack as its last argument, and the callback
8211 just ignores this garbage); but there is no guarantee whatsoever that
8214 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8215 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8216 problems not only on Windows, but also on some Unix platforms.
8217 To avoid problematic command lines, these definitions are now in an
8218 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8219 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8222 *) MIPS III/IV assembler module is reimplemented.
8225 *) More DES library cleanups: remove references to srand/rand and
8226 delete an unused file.
8229 *) Add support for the the free Netwide assembler (NASM) under Win32,
8230 since not many people have MASM (ml) and it can be hard to obtain.
8231 This is currently experimental but it seems to work OK and pass all
8232 the tests. Check out INSTALL.W32 for info.
8235 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8236 without temporary keys kept an extra copy of the server key,
8237 and connections with temporary keys did not free everything in case
8241 *) New function RSA_check_key and new openssl rsa option -check
8242 for verifying the consistency of RSA keys.
8243 [Ulf Moeller, Bodo Moeller]
8245 *) Various changes to make Win32 compile work:
8246 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8247 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8248 comparison" warnings.
8249 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8252 *) Add a debugging option to PKCS#5 v2 key generation function: when
8253 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8254 derived keys are printed to stderr.
8257 *) Copy the flags in ASN1_STRING_dup().
8258 [Roman E. Pavlov <pre@mo.msk.ru>]
8260 *) The x509 application mishandled signing requests containing DSA
8261 keys when the signing key was also DSA and the parameters didn't match.
8263 It was supposed to omit the parameters when they matched the signing key:
8264 the verifying software was then supposed to automatically use the CA's
8265 parameters if they were absent from the end user certificate.
8267 Omitting parameters is no longer recommended. The test was also
8268 the wrong way round! This was probably due to unusual behaviour in
8269 EVP_cmp_parameters() which returns 1 if the parameters match.
8270 This meant that parameters were omitted when they *didn't* match and
8271 the certificate was useless. Certificates signed with 'ca' didn't have
8273 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8275 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8276 The interface is as follows:
8277 Applications can use
8278 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8279 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8280 "off" is now the default.
8281 The library internally uses
8282 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8283 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8284 to disable memory-checking temporarily.
8286 Some inconsistent states that previously were possible (and were
8287 even the default) are now avoided.
8289 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8290 with each memory chunk allocated; this is occasionally more helpful
8291 than just having a counter.
8293 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8295 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8299 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8300 which largely parallels "options", but is for changing API behaviour,
8301 whereas "options" are about protocol behaviour.
8302 Initial "mode" flags are:
8304 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8305 a single record has been written.
8306 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8307 retries use the same buffer location.
8308 (But all of the contents must be
8312 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8315 *) Fix problems with no-hmac etc.
8316 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8318 *) New functions RSA_get_default_method(), RSA_set_method() and
8319 RSA_get_method(). These allows replacement of RSA_METHODs without having
8320 to mess around with the internals of an RSA structure.
8323 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8324 Also really enable memory leak checks in openssl.c and in some
8326 [Chad C. Mulligan, Bodo Moeller]
8328 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8329 up the length of negative integers. This has now been simplified to just
8330 store the length when it is first determined and use it later, rather
8331 than trying to keep track of where data is copied and updating it to
8333 [Steve Henson, reported by Brien Wheeler
8334 <bwheeler@authentica-security.com>]
8336 *) Add a new function PKCS7_signatureVerify. This allows the verification
8337 of a PKCS#7 signature but with the signing certificate passed to the
8338 function itself. This contrasts with PKCS7_dataVerify which assumes the
8339 certificate is present in the PKCS#7 structure. This isn't always the
8340 case: certificates can be omitted from a PKCS#7 structure and be
8341 distributed by "out of band" means (such as a certificate database).
8344 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8345 function prototypes in pem.h, also change util/mkdef.pl to add the
8346 necessary function names.
8349 *) mk1mf.pl (used by Windows builds) did not properly read the
8350 options set by Configure in the top level Makefile, and Configure
8351 was not even able to write more than one option correctly.
8352 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8355 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8356 file to be loaded from a BIO or FILE pointer. The BIO version will
8357 for example allow memory BIOs to contain config info.
8360 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8361 Whoever hopes to achieve shared-library compatibility across versions
8362 must use this, not the compile-time macro.
8363 (Exercise 0.9.4: Which is the minimum library version required by
8365 Note: All this applies only to multi-threaded programs, others don't
8369 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8370 through a BIO pair triggered the default case, i.e.
8371 SSLerr(...,SSL_R_UNKNOWN_STATE).
8374 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8375 can use the SSL library even if none of the specific BIOs is
8379 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8380 for the encoded length.
8381 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8383 *) Add initial documentation of the X509V3 functions.
8386 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8387 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8388 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8389 secure PKCS#8 private key format with a high iteration count.
8392 *) Fix determination of Perl interpreter: A perl or perl5
8393 _directory_ in $PATH was also accepted as the interpreter.
8394 [Ralf S. Engelschall]
8396 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8397 wrong with it but it was very old and did things like calling
8398 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8402 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8403 to use the new extension code.
8406 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8407 with macros. This should make it easier to change their form, add extra
8408 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8412 *) Add to configuration table a new entry that can specify an alternative
8413 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8414 according to Mark Crispin <MRC@Panda.COM>.
8418 *) DES CBC did not update the IV. Weird.
8421 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8422 Changing the behaviour of the former might break existing programs --
8423 where IV updating is needed, des_ncbc_encrypt can be used.
8426 *) When bntest is run from "make test" it drives bc to check its
8427 calculations, as well as internally checking them. If an internal check
8428 fails, it needs to cause bc to give a non-zero result or make test carries
8429 on without noticing the failure. Fixed.
8432 *) DES library cleanups.
8435 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8436 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8437 ciphers. NOTE: although the key derivation function has been verified
8438 against some published test vectors it has not been extensively tested
8439 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8443 *) Instead of "mkdir -p", which is not fully portable, use new
8444 Perl script "util/mkdir-p.pl".
8447 *) Rewrite the way password based encryption (PBE) is handled. It used to
8448 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8449 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8450 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8451 the 'parameter' field of the AlgorithmIdentifier is passed to the
8452 underlying key generation function so it must do its own ASN1 parsing.
8453 This has also changed the EVP_PBE_CipherInit() function which now has a
8454 'parameter' argument instead of literal salt and iteration count values
8455 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8458 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8459 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8460 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8461 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8462 value was just used as a "magic string" and not used directly its
8463 value doesn't matter.
8466 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8470 *) "linux-sparc64" configuration (ultrapenguin).
8471 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8472 "linux-sparc" configuration.
8473 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8475 *) config now generates no-xxx options for missing ciphers.
8478 *) Support the EBCDIC character set (work in progress).
8479 File ebcdic.c not yet included because it has a different license.
8480 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8482 *) Support BS2000/OSD-POSIX.
8483 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8485 *) Make callbacks for key generation use void * instead of char *.
8488 *) Make S/MIME samples compile (not yet tested).
8491 *) Additional typesafe stacks.
8494 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8498 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8500 *) New configuration variant "sco5-gcc".
8502 *) Updated some demos.
8503 [Sean O Riordain, Wade Scholine]
8505 *) Add missing BIO_free at exit of pkcs12 application.
8508 *) Fix memory leak in conf.c.
8511 *) Updates for Win32 to assembler version of MD5.
8514 *) Set #! path to perl in apps/der_chop to where we found it
8515 instead of using a fixed path.
8518 *) SHA library changes for irix64-mips4-cc.
8521 *) Improvements for VMS support.
8525 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8527 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8528 This also avoids the problems with SC4.2 and unpatched SC5.
8529 [Andy Polyakov <appro@fy.chalmers.se>]
8531 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8532 These are required because of the typesafe stack would otherwise break
8533 existing code. If old code used a structure member which used to be STACK
8534 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8535 sk_num or sk_value it would produce an error because the num, data members
8536 are not present in STACK_OF. Now it just produces a warning. sk_set
8537 replaces the old method of assigning a value to sk_value
8538 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8539 that does this will no longer work (and should use sk_set instead) but
8540 this could be regarded as a "questionable" behaviour anyway.
8543 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8544 correctly handle encrypted S/MIME data.
8547 *) Change type of various DES function arguments from des_cblock
8548 (which means, in function argument declarations, pointer to char)
8549 to des_cblock * (meaning pointer to array with 8 char elements),
8550 which allows the compiler to do more typechecking; it was like
8551 that back in SSLeay, but with lots of ugly casts.
8553 Introduce new type const_des_cblock.
8556 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8557 problems: find RecipientInfo structure that matches recipient certificate
8558 and initialise the ASN1 structures properly based on passed cipher.
8561 *) Belatedly make the BN tests actually check the results.
8564 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8565 to and from BNs: it was completely broken. New compilation option
8566 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8567 key elements as negative integers.
8570 *) Reorganize and speed up MD5.
8571 [Andy Polyakov <appro@fy.chalmers.se>]
8574 [Richard Levitte <richard@levitte.org>]
8576 *) New option -out to asn1parse to allow the parsed structure to be
8577 output to a file. This is most useful when combined with the -strparse
8578 option to examine the output of things like OCTET STRINGS.
8581 *) Make SSL library a little more fool-proof by not requiring any longer
8582 that SSL_set_{accept,connect}_state be called before
8583 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8584 in many applications because usually everything *appeared* to work as
8585 intended anyway -- now it really works as intended).
8588 *) Move openssl.cnf out of lib/.
8591 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8592 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8593 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8594 [Ralf S. Engelschall]
8596 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8597 handle PKCS#7 enveloped data properly.
8598 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8600 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8601 copying pointers. The cert_st handling is changed by this in
8602 various ways (and thus what used to be known as ctx->default_cert
8603 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8604 any longer when s->cert does not give us what we need).
8605 ssl_cert_instantiate becomes obsolete by this change.
8606 As soon as we've got the new code right (possibly it already is?),
8607 we have solved a couple of bugs of the earlier code where s->cert
8608 was used as if it could not have been shared with other SSL structures.
8610 Note that using the SSL API in certain dirty ways now will result
8611 in different behaviour than observed with earlier library versions:
8612 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8613 does not influence s as it used to.
8615 In order to clean up things more thoroughly, inside SSL_SESSION
8616 we don't use CERT any longer, but a new structure SESS_CERT
8617 that holds per-session data (if available); currently, this is
8618 the peer's certificate chain and, for clients, the server's certificate
8619 and temporary key. CERT holds only those values that can have
8620 meaningful defaults in an SSL_CTX.
8623 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8624 from the internal representation. Various PKCS#7 fixes: remove some
8625 evil casts and set the enc_dig_alg field properly based on the signing
8629 *) Allow PKCS#12 password to be set from the command line or the
8630 environment. Let 'ca' get its config file name from the environment
8631 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8635 *) Allow certificate policies extension to use an IA5STRING for the
8636 organization field. This is contrary to the PKIX definition but
8637 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8641 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8642 without disallowing inline assembler and the like for non-pedantic builds.
8645 *) Support Borland C++ builder.
8646 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8651 *) SHA-1 cleanups and performance enhancements.
8652 [Andy Polyakov <appro@fy.chalmers.se>]
8654 *) Sparc v8plus assembler for the bignum library.
8655 [Andy Polyakov <appro@fy.chalmers.se>]
8657 *) Accept any -xxx and +xxx compiler options in Configure.
8660 *) Update HPUX configuration.
8663 *) Add missing sk_<type>_unshift() function to safestack.h
8664 [Ralf S. Engelschall]
8666 *) New function SSL_CTX_use_certificate_chain_file that sets the
8667 "extra_cert"s in addition to the certificate. (This makes sense
8668 only for "PEM" format files, as chains as a whole are not
8672 *) Support verify_depth from the SSL API.
8673 x509_vfy.c had what can be considered an off-by-one-error:
8674 Its depth (which was not part of the external interface)
8675 was actually counting the number of certificates in a chain;
8676 now it really counts the depth.
8679 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8680 instead of X509err, which often resulted in confusing error
8681 messages since the error codes are not globally unique
8682 (e.g. an alleged error in ssl3_accept when a certificate
8683 didn't match the private key).
8685 *) New function SSL_CTX_set_session_id_context that allows to set a default
8686 value (so that you don't need SSL_set_session_id_context for each
8687 connection using the SSL_CTX).
8690 *) OAEP decoding bug fix.
8693 *) Support INSTALL_PREFIX for package builders, as proposed by
8697 *) New Configure options "threads" and "no-threads". For systems
8698 where the proper compiler options are known (currently Solaris
8699 and Linux), "threads" is the default.
8702 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8705 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8706 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8707 such as /usr/local/bin.
8710 *) "make linux-shared" to build shared libraries.
8711 [Niels Poppe <niels@netbox.org>]
8713 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8716 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8717 extension adding in x509 utility.
8720 *) Remove NOPROTO sections and error code comments.
8723 *) Partial rewrite of the DEF file generator to now parse the ANSI
8727 *) New Configure options --prefix=DIR and --openssldir=DIR.
8730 *) Complete rewrite of the error code script(s). It is all now handled
8731 by one script at the top level which handles error code gathering,
8732 header rewriting and C source file generation. It should be much better
8733 than the old method: it now uses a modified version of Ulf's parser to
8734 read the ANSI prototypes in all header files (thus the old K&R definitions
8735 aren't needed for error creation any more) and do a better job of
8736 translating function codes into names. The old 'ASN1 error code imbedded
8737 in a comment' is no longer necessary and it doesn't use .err files which
8738 have now been deleted. Also the error code call doesn't have to appear all
8739 on one line (which resulted in some large lines...).
8742 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8745 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8746 0 (which usually indicates a closed connection), but continue reading.
8749 *) Fix some race conditions.
8752 *) Add support for CRL distribution points extension. Add Certificate
8753 Policies and CRL distribution points documentation.
8756 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8759 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8760 8 of keying material. Merlin has also confirmed interop with this fix
8761 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8762 [Merlin Hughes <merlin@baltimore.ie>]
8764 *) Fix lots of warnings.
8765 [Richard Levitte <levitte@stacken.kth.se>]
8767 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8768 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8769 [Richard Levitte <levitte@stacken.kth.se>]
8771 *) Fix problems with sizeof(long) == 8.
8772 [Andy Polyakov <appro@fy.chalmers.se>]
8774 *) Change functions to ANSI C.
8777 *) Fix typos in error codes.
8778 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8780 *) Remove defunct assembler files from Configure.
8783 *) SPARC v8 assembler BIGNUM implementation.
8784 [Andy Polyakov <appro@fy.chalmers.se>]
8786 *) Support for Certificate Policies extension: both print and set.
8787 Various additions to support the r2i method this uses.
8790 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8791 return a const string when you are expecting an allocated buffer.
8794 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8795 types DirectoryString and DisplayText.
8798 *) Add code to allow r2i extensions to access the configuration database,
8799 add an LHASH database driver and add several ctx helper functions.
8802 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8803 fail when they extended the size of a BIGNUM.
8806 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8807 support typesafe stack.
8810 *) Fix typo in SSL_[gs]et_options().
8811 [Nils Frostberg <nils@medcom.se>]
8813 *) Delete various functions and files that belonged to the (now obsolete)
8814 old X509V3 handling code.
8817 *) New Configure option "rsaref".
8820 *) Don't auto-generate pem.h.
8823 *) Introduce type-safe ASN.1 SETs.
8826 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8827 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8829 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8830 that links with OpenSSL (well at least cause lots of warnings), but fear
8831 not: the conversion is trivial, and it eliminates loads of evil casts. A
8832 few STACKed things have been converted already. Feel free to convert more.
8833 In the fullness of time, I'll do away with the STACK type altogether.
8836 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8837 specified in <certfile> by updating the entry in the index.txt file.
8838 This way one no longer has to edit the index.txt file manually for
8839 revoking a certificate. The -revoke option does the gory details now.
8840 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8842 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8843 `-text' option at all and this way the `-noout -text' combination was
8844 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8845 [Ralf S. Engelschall]
8847 *) Make sure a corresponding plain text error message exists for the
8848 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8849 verify callback function determined that a certificate was revoked.
8850 [Ralf S. Engelschall]
8852 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8853 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8854 all available cipers including rc5, which was forgotten until now.
8855 In order to let the testing shell script know which algorithms
8856 are available, a new (up to now undocumented) command
8857 "openssl list-cipher-commands" is used.
8860 *) Bugfix: s_client occasionally would sleep in select() when
8861 it should have checked SSL_pending() first.
8864 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8865 the raw DSA values prior to ASN.1 encoding.
8868 *) Tweaks to Configure
8869 [Niels Poppe <niels@netbox.org>]
8871 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8875 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8878 *) New config option to avoid instructions that are illegal on the 80386.
8879 The default code is faster, but requires at least a 486.
8882 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8883 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8884 same as SSL2_VERSION anyway.
8887 *) New "-showcerts" option for s_client.
8890 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8891 application. Various cleanups and fixes.
8894 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8895 modify error routines to work internally. Add error codes and PBE init
8896 to library startup routines.
8899 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8900 packing functions to asn1 and evp. Changed function names and error
8901 codes along the way.
8904 *) PKCS12 integration: and so it begins... First of several patches to
8905 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8906 objects to objects.h
8909 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8910 and display support for Thawte strong extranet extension.
8913 *) Add LinuxPPC support.
8914 [Jeff Dubrule <igor@pobox.org>]
8916 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8917 bn_div_words in alpha.s.
8918 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8920 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8921 OAEP isn't supported when OpenSSL is built with RSAref.
8922 [Ulf Moeller <ulf@fitug.de>]
8924 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8925 so they no longer are missing under -DNOPROTO.
8926 [Soren S. Jorvang <soren@t.dk>]
8929 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8931 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8932 doesn't work when the session is reused. Coming soon!
8935 *) Fix a security hole, that allows sessions to be reused in the wrong
8936 context thus bypassing client cert protection! All software that uses
8937 client certs and session caches in multiple contexts NEEDS PATCHING to
8938 allow session reuse! A fuller solution is in the works.
8939 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8941 *) Some more source tree cleanups (removed obsolete files
8942 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8943 permission on "config" script to be executable) and a fix for the INSTALL
8945 [Ulf Moeller <ulf@fitug.de>]
8947 *) Remove some legacy and erroneous uses of malloc, free instead of
8949 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8951 *) Make rsa_oaep_test return non-zero on error.
8952 [Ulf Moeller <ulf@fitug.de>]
8954 *) Add support for native Solaris shared libraries. Configure
8955 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8956 if someone would make that last step automatic.
8957 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8959 *) ctx_size was not built with the right compiler during "make links". Fixed.
8962 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8963 except NULL ciphers". This means the default cipher list will no longer
8964 enable NULL ciphers. They need to be specifically enabled e.g. with
8965 the string "DEFAULT:eNULL".
8968 *) Fix to RSA private encryption routines: if p < q then it would
8969 occasionally produce an invalid result. This will only happen with
8970 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8973 *) Be less restrictive and allow also `perl util/perlpath.pl
8974 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8975 because this way one can also use an interpreter named `perl5' (which is
8976 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8977 installed as `perl').
8978 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8980 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8981 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8983 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8984 advapi32.lib to Win32 build and change the pem test comparision
8985 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8986 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8987 and crypto/des/ede_cbcm_enc.c.
8990 *) DES quad checksum was broken on big-endian architectures. Fixed.
8993 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8994 Win32 test batch file so it (might) work again. The Win32 test batch file
8995 is horrible: I feel ill....
8998 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8999 in e_os.h. Audit of header files to check ANSI and non ANSI
9000 sections: 10 functions were absent from non ANSI section and not exported
9001 from Windows DLLs. Fixed up libeay.num for new functions.
9004 *) Make `openssl version' output lines consistent.
9005 [Ralf S. Engelschall]
9007 *) Fix Win32 symbol export lists for BIO functions: Added
9008 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9009 to ms/libeay{16,32}.def.
9010 [Ralf S. Engelschall]
9012 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9013 fine under Unix and passes some trivial tests I've now added. But the
9014 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9015 added to make sure no one expects that this stuff really works in the
9016 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9017 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9019 [Ralf S. Engelschall]
9021 *) Fix the generation of two part addresses in perl.
9022 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9024 *) Add config entry for Linux on MIPS.
9025 [John Tobey <jtobey@channel1.com>]
9027 *) Make links whenever Configure is run, unless we are on Windoze.
9030 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9031 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9035 *) Add a useful kludge to allow package maintainers to specify compiler and
9036 other platforms details on the command line without having to patch the
9037 Configure script everytime: One now can use ``perl Configure
9038 <id>:<details>'', i.e. platform ids are allowed to have details appended
9039 to them (seperated by colons). This is treated as there would be a static
9040 pre-configured entry in Configure's %table under key <id> with value
9041 <details> and ``perl Configure <id>'' is called. So, when you want to
9042 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9043 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9044 now, which overrides the FreeBSD-elf entry on-the-fly.
9045 [Ralf S. Engelschall]
9047 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9050 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9051 on the `perl Configure ...' command line. This way one can compile
9052 OpenSSL libraries with Position Independent Code (PIC) which is needed
9053 for linking it into DSOs.
9054 [Ralf S. Engelschall]
9056 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9060 *) Cleaned up the LICENSE document: The official contact for any license
9061 questions now is the OpenSSL core team under openssl-core@openssl.org.
9062 And add a paragraph about the dual-license situation to make sure people
9063 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9064 to the OpenSSL toolkit.
9065 [Ralf S. Engelschall]
9067 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9068 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9069 Additonally cleaned up the `make links' target: Remove unnecessary
9070 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9071 to speed processing and no longer clutter the display with confusing
9072 stuff. Instead only the actually done links are displayed.
9073 [Ralf S. Engelschall]
9075 *) Permit null encryption ciphersuites, used for authentication only. It used
9076 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9077 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9081 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9082 signed attributes when verifying signatures (this would break them),
9083 the detached data encoding was wrong and public keys obtained using
9084 X509_get_pubkey() weren't freed.
9087 *) Add text documentation for the BUFFER functions. Also added a work around
9088 to a Win95 console bug. This was triggered by the password read stuff: the
9089 last character typed gets carried over to the next fread(). If you were
9090 generating a new cert request using 'req' for example then the last
9091 character of the passphrase would be CR which would then enter the first
9095 *) Added the new `Includes OpenSSL Cryptography Software' button as
9096 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9097 button and can be used by applications based on OpenSSL to show the
9098 relationship to the OpenSSL project.
9099 [Ralf S. Engelschall]
9101 *) Remove confusing variables in function signatures in files
9102 ssl/ssl_lib.c and ssl/ssl.h.
9103 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9105 *) Don't install bss_file.c under PREFIX/include/
9106 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9108 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9109 functions that return function pointers and has support for NT specific
9110 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9111 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9112 unsigned to signed types: this was killing the Win32 compile.
9115 *) Add new certificate file to stack functions,
9116 SSL_add_dir_cert_subjects_to_stack() and
9117 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9118 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9119 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9120 This means that Apache-SSL and similar packages don't have to mess around
9121 to add as many CAs as they want to the preferred list.
9124 *) Experiment with doxygen documentation. Currently only partially applied to
9126 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9127 openssl.doxy as the configuration file.
9130 *) Get rid of remaining C++-style comments which strict C compilers hate.
9131 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9133 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9134 compiled in by default: it has problems with large keys.
9137 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9138 DH private keys and/or callback functions which directly correspond to
9139 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9140 is needed for applications which have to configure certificates on a
9141 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9143 For the RSA certificate situation is makes no difference, but
9144 for the DSA certificate situation this fixes the "no shared cipher"
9145 problem where the OpenSSL cipher selection procedure failed because the
9146 temporary keys were not overtaken from the context and the API provided
9147 no way to reconfigure them.
9148 The new functions now let applications reconfigure the stuff and they
9149 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9150 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9151 non-public-API function ssl_cert_instantiate() is used as a helper
9152 function and also to reduce code redundancy inside ssl_rsa.c.
9153 [Ralf S. Engelschall]
9155 *) Move s_server -dcert and -dkey options out of the undocumented feature
9156 area because they are useful for the DSA situation and should be
9157 recognized by the users.
9158 [Ralf S. Engelschall]
9160 *) Fix the cipher decision scheme for export ciphers: the export bits are
9161 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9162 SSL_EXP_MASK. So, the original variable has to be used instead of the
9163 already masked variable.
9164 [Richard Levitte <levitte@stacken.kth.se>]
9166 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9167 [Richard Levitte <levitte@stacken.kth.se>]
9169 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9170 from `int' to `unsigned int' because it's a length and initialized by
9171 EVP_DigestFinal() which expects an `unsigned int *'.
9172 [Richard Levitte <levitte@stacken.kth.se>]
9174 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9175 script. Instead use the usual Shell->Perl transition trick.
9176 [Ralf S. Engelschall]
9178 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9179 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9180 -noout -modulus' as it's already the case for `openssl rsa -noout
9181 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9182 currently the public key is printed (a decision which was already done by
9183 `openssl dsa -modulus' in the past) which serves a similar purpose.
9184 Additionally the NO_RSA no longer completely removes the whole -modulus
9185 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9187 [Ralf S. Engelschall]
9189 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9190 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9191 [Arne Ansper <arne@ats.cyber.ee>]
9193 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9194 to be added. Now both 'req' and 'ca' can use new objects defined in the
9198 *) Add cool BIO that does syslog (or event log on NT).
9199 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9201 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9202 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9203 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9204 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9207 *) Add preliminary config info for new extension code.
9210 *) Make RSA_NO_PADDING really use no padding.
9211 [Ulf Moeller <ulf@fitug.de>]
9213 *) Generate errors when private/public key check is done.
9216 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9217 for some CRL extensions and new objects added.
9220 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9221 key usage extension and fuller support for authority key id.
9224 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9225 padding method for RSA, which is recommended for new applications in PKCS
9226 #1 v2.0 (RFC 2437, October 1998).
9227 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9228 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9229 against Bleichbacher's attack on RSA.
9230 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9233 *) Updates to the new SSL compression code
9234 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9236 *) Fix so that the version number in the master secret, when passed
9237 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9238 (because the server will not accept higher), that the version number
9239 is 0x03,0x01, not 0x03,0x00
9240 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9242 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9243 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9244 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9247 *) Support for RAW extensions where an arbitrary extension can be
9248 created by including its DER encoding. See apps/openssl.cnf for
9252 *) Make sure latest Perl versions don't interpret some generated C array
9253 code as Perl array code in the crypto/err/err_genc.pl script.
9254 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9256 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9257 not many people have the assembler. Various Win32 compilation fixes and
9258 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9262 *) Modify configure script 'Configure' to automatically create crypto/date.h
9263 file under Win32 and also build pem.h from pem.org. New script
9264 util/mkfiles.pl to create the MINFO file on environments that can't do a
9265 'make files': perl util/mkfiles.pl >MINFO should work.
9268 *) Major rework of DES function declarations, in the pursuit of correctness
9269 and purity. As a result, many evil casts evaporated, and some weirdness,
9270 too. You may find this causes warnings in your code. Zapping your evil
9271 casts will probably fix them. Mostly.
9274 *) Fix for a typo in asn1.h. Bug fix to object creation script
9275 obj_dat.pl. It considered a zero in an object definition to mean
9276 "end of object": none of the objects in objects.h have any zeros
9277 so it wasn't spotted.
9278 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9280 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9281 Masking (CBCM). In the absence of test vectors, the best I have been able
9282 to do is check that the decrypt undoes the encrypt, so far. Send me test
9283 vectors if you have them.
9286 *) Correct calculation of key length for export ciphers (too much space was
9287 allocated for null ciphers). This has not been tested!
9290 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9291 message is now correct (it understands "crypto" and "ssl" on its
9292 command line). There is also now an "update" option. This will update
9293 the util/ssleay.num and util/libeay.num files with any new functions.
9295 perl util/mkdef.pl crypto ssl update
9296 it will update them.
9299 *) Overhauled the Perl interface (perl/*):
9300 - ported BN stuff to OpenSSL's different BN library
9301 - made the perl/ source tree CVS-aware
9302 - renamed the package from SSLeay to OpenSSL (the files still contain
9303 their history because I've copied them in the repository)
9304 - removed obsolete files (the test scripts will be replaced
9305 by better Test::Harness variants in the future)
9306 [Ralf S. Engelschall]
9308 *) First cut for a very conservative source tree cleanup:
9309 1. merge various obsolete readme texts into doc/ssleay.txt
9310 where we collect the old documents and readme texts.
9311 2. remove the first part of files where I'm already sure that we no
9312 longer need them because of three reasons: either they are just temporary
9313 files which were left by Eric or they are preserved original files where
9314 I've verified that the diff is also available in the CVS via "cvs diff
9315 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9316 the crypto/md/ stuff).
9317 [Ralf S. Engelschall]
9319 *) More extension code. Incomplete support for subject and issuer alt
9320 name, issuer and authority key id. Change the i2v function parameters
9321 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9322 what that's for :-) Fix to ASN1 macro which messed up
9323 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9326 *) Preliminary support for ENUMERATED type. This is largely copied from the
9330 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9331 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9333 *) Make sure `make rehash' target really finds the `openssl' program.
9334 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9336 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9337 like to hear about it if this slows down other processors.
9340 *) Add CygWin32 platform information to Configure script.
9341 [Alan Batie <batie@aahz.jf.intel.com>]
9343 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9344 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9346 *) New program nseq to manipulate netscape certificate sequences
9349 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9353 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9354 but the BN code had some problems that would cause failures when
9355 doing certificate verification and some other functions.
9356 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9358 *) Add ASN1 and PEM code to support netscape certificate sequences.
9361 *) Add ASN1 and PEM code to support netscape certificate sequences.
9364 *) Add several PKIX and private extended key usage OIDs.
9367 *) Modify the 'ca' program to handle the new extension code. Modify
9368 openssl.cnf for new extension format, add comments.
9371 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9372 and add a sample to openssl.cnf so req -x509 now adds appropriate
9376 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9377 error code, add initial support to X509_print() and x509 application.
9380 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9381 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9382 stuff is currently isolated and isn't even compiled yet.
9385 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9386 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9387 Removed the versions check from X509 routines when loading extensions:
9388 this allows certain broken certificates that don't set the version
9389 properly to be processed.
9392 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9393 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9394 can still be regenerated with "make depend".
9397 *) Spelling mistake in C version of CAST-128.
9398 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9400 *) Changes to the error generation code. The perl script err-code.pl
9401 now reads in the old error codes and retains the old numbers, only
9402 adding new ones if necessary. It also only changes the .err files if new
9403 codes are added. The makefiles have been modified to only insert errors
9404 when needed (to avoid needlessly modifying header files). This is done
9405 by only inserting errors if the .err file is newer than the auto generated
9406 C file. To rebuild all the error codes from scratch (the old behaviour)
9407 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9408 or delete all the .err files.
9411 *) CAST-128 was incorrectly implemented for short keys. The C version has
9412 been fixed, but is untested. The assembler versions are also fixed, but
9413 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9414 to regenerate it if needed.
9415 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9416 Hagino <itojun@kame.net>]
9418 *) File was opened incorrectly in randfile.c.
9419 [Ulf Möller <ulf@fitug.de>]
9421 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9422 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9423 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9424 al: it's just almost always a UTCTime. Note this patch adds new error
9425 codes so do a "make errors" if there are problems.
9428 *) Correct Linux 1 recognition in config.
9429 [Ulf Möller <ulf@fitug.de>]
9431 *) Remove pointless MD5 hash when using DSA keys in ca.
9432 [Anonymous <nobody@replay.com>]
9434 *) Generate an error if given an empty string as a cert directory. Also
9435 generate an error if handed NULL (previously returned 0 to indicate an
9436 error, but didn't set one).
9437 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9439 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9442 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9443 parameters. This was causing a warning which killed off the Win32 compile.
9446 *) Remove C++ style comments from crypto/bn/bn_local.h.
9447 [Neil Costigan <neil.costigan@celocom.com>]
9449 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9450 based on a text string, looking up short and long names and finally
9451 "dot" format. The "dot" format stuff didn't work. Added new function
9452 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9453 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9454 OID is not part of the table.
9457 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9458 X509_LOOKUP_by_alias().
9461 *) Sort openssl functions by name.
9464 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9465 encryption from sample DSA keys (in case anyone is interested the password
9469 *) Make _all_ *_free functions accept a NULL pointer.
9470 [Frans Heymans <fheymans@isaserver.be>]
9472 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9474 [Anonymous <nobody@replay.com>]
9476 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9477 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9479 *) Don't blow it for numeric -newkey arguments to apps/req.
9480 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9482 *) Temp key "for export" tests were wrong in s3_srvr.c.
9483 [Anonymous <nobody@replay.com>]
9485 *) Add prototype for temp key callback functions
9486 SSL_CTX_set_tmp_{rsa,dh}_callback().
9489 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9490 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9493 *) X509_name_add_entry() freed the wrong thing after an error.
9494 [Arne Ansper <arne@ats.cyber.ee>]
9496 *) rsa_eay.c would attempt to free a NULL context.
9497 [Arne Ansper <arne@ats.cyber.ee>]
9499 *) BIO_s_socket() had a broken should_retry() on Windoze.
9500 [Arne Ansper <arne@ats.cyber.ee>]
9502 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9503 [Arne Ansper <arne@ats.cyber.ee>]
9505 *) Make sure the already existing X509_STORE->depth variable is initialized
9506 in X509_STORE_new(), but document the fact that this variable is still
9507 unused in the certificate verification process.
9508 [Ralf S. Engelschall]
9510 *) Fix the various library and apps files to free up pkeys obtained from
9511 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9514 *) Fix reference counting in X509_PUBKEY_get(). This makes
9515 demos/maurice/example2.c work, amongst others, probably.
9516 [Steve Henson and Ben Laurie]
9518 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9519 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9520 are no longer created. This way we have a single and consistent command
9521 line interface `openssl <command>', similar to `cvs <command>'.
9522 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9524 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9525 BIT STRING wrapper always have zero unused bits.
9528 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9531 *) Make the top-level INSTALL documentation easier to understand.
9534 *) Makefiles updated to exit if an error occurs in a sub-directory
9535 make (including if user presses ^C) [Paul Sutton]
9537 *) Make Montgomery context stuff explicit in RSA data structure.
9540 *) Fix build order of pem and err to allow for generated pem.h.
9543 *) Fix renumbering bug in X509_NAME_delete_entry().
9546 *) Enhanced the err-ins.pl script so it makes the error library number
9547 global and can add a library name. This is needed for external ASN1 and
9548 other error libraries.
9551 *) Fixed sk_insert which never worked properly.
9554 *) Fix ASN1 macros so they can handle indefinite length construted
9555 EXPLICIT tags. Some non standard certificates use these: they can now
9559 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9560 into a single doc/ssleay.txt bundle. This way the information is still
9561 preserved but no longer messes up this directory. Now it's new room for
9562 the new set of documenation files.
9563 [Ralf S. Engelschall]
9565 *) SETs were incorrectly DER encoded. This was a major pain, because they
9566 shared code with SEQUENCEs, which aren't coded the same. This means that
9567 almost everything to do with SETs or SEQUENCEs has either changed name or
9568 number of arguments.
9569 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9571 *) Fix test data to work with the above.
9574 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9575 was already fixed by Eric for 0.9.1 it seems.
9576 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9578 *) Autodetect FreeBSD3.
9581 *) Fix various bugs in Configure. This affects the following platforms:
9585 unixware-2.0-pentium
9589 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9590 before they are needed.
9593 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9597 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9599 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9600 changed SSLeay to OpenSSL in version strings.
9601 [Ralf S. Engelschall]
9603 *) Some fixups to the top-level documents.
9606 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9607 because the symlink to include/ was missing.
9608 [Ralf S. Engelschall]
9610 *) Incorporated the popular no-RSA/DSA-only patches
9611 which allow to compile a RSA-free SSLeay.
9612 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9614 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9615 when "ssleay" is still not found.
9616 [Ralf S. Engelschall]
9618 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9619 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9621 *) Updated the README file.
9622 [Ralf S. Engelschall]
9624 *) Added various .cvsignore files in the CVS repository subdirs
9625 to make a "cvs update" really silent.
9626 [Ralf S. Engelschall]
9628 *) Recompiled the error-definition header files and added
9629 missing symbols to the Win32 linker tables.
9630 [Ralf S. Engelschall]
9632 *) Cleaned up the top-level documents;
9633 o new files: CHANGES and LICENSE
9634 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9635 o merged COPYRIGHT into LICENSE
9636 o removed obsolete TODO file
9637 o renamed MICROSOFT to INSTALL.W32
9638 [Ralf S. Engelschall]
9640 *) Removed dummy files from the 0.9.1b source tree:
9641 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9642 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9643 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9644 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9645 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9646 [Ralf S. Engelschall]
9648 *) Added various platform portability fixes.
9651 *) The Genesis of the OpenSSL rpject:
9652 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9653 Young and Tim J. Hudson created while they were working for C2Net until
9655 [The OpenSSL Project]
9658 Changes between 0.9.0b and 0.9.1b [not released]
9660 *) Updated a few CA certificates under certs/
9663 *) Changed some BIGNUM api stuff.
9666 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9667 DGUX x86, Linux Alpha, etc.
9670 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9671 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9675 *) Add -strparse option to asn1pars program which parses nested
9677 [Dr Stephen Henson <shenson@bigfoot.com>]
9679 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9682 *) DSA fix for "ca" program.
9685 *) Added "-genkey" option to "dsaparam" program.
9688 *) Added RIPE MD160 (rmd160) message digest.
9691 *) Added -a (all) option to "ssleay version" command.
9694 *) Added PLATFORM define which is the id given to Configure.
9697 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9700 *) Extended the ASN.1 parser routines.
9703 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9706 *) Added a BN_CTX to the BN library.
9709 *) Fixed the weak key values in DES library
9712 *) Changed API in EVP library for cipher aliases.
9715 *) Added support for RC2/64bit cipher.
9718 *) Converted the lhash library to the crypto/mem.c functions.
9721 *) Added more recognized ASN.1 object ids.
9724 *) Added more RSA padding checks for SSL/TLS.
9727 *) Added BIO proxy/filter functionality.
9730 *) Added extra_certs to SSL_CTX which can be used
9731 send extra CA certificates to the client in the CA cert chain sending
9732 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9735 *) Now Fortezza is denied in the authentication phase because
9736 this is key exchange mechanism is not supported by SSLeay at all.
9739 *) Additional PKCS1 checks.
9742 *) Support the string "TLSv1" for all TLS v1 ciphers.
9745 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9746 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9749 *) Fixed a few memory leaks.
9752 *) Fixed various code and comment typos.
9755 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9756 bytes sent in the client random.
9757 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob