5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
8 information in FIPS186-3, SP800-57 and SP800-131A.
11 *) CCM support via EVP. Interface is very similar to GCM case except we
12 must supply all data in one chunk (i.e. no update, final) and the
13 message length must be supplied if AAD is used. Add algorithm test
17 *) Initial version of POST overhaul. Add POST callback to allow the status
18 of POST to be monitored and/or failures induced. Modify fips_test_suite
19 to use callback. Always run all selftests even if one fails.
22 *) XTS support including algorithm test driver in the fips_gcmtest program.
23 Note: this does increase the maximum key length from 32 to 64 bytes but
24 there should be no binary compatibility issues as existing applications
25 will never use XTS mode.
28 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
29 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
30 performs algorithm blocking for unapproved PRNG types. Also do not
31 set PRNG type in FIPS_mode_set(): leave this to the application.
32 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
33 the standard OpenSSL PRNG: set additional data to a date time vector.
36 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
37 This shouldn't present any incompatibility problems because applications
38 shouldn't be using these directly and any that are will need to rethink
39 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
42 *) Extensive self tests and health checking required by SP800-90 DRBG.
43 Remove strength parameter from FIPS_drbg_instantiate and always
44 instantiate at maximum supported strength.
48 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
50 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
53 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
56 *) New function DH_compute_key_padded() to compute a DH key and pad with
57 leading zeroes if needed: this complies with SP800-56A et al.
60 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
61 anything, incomplete, subject to change and largely untested at present.
64 *) Modify fipscanisteronly build option to only build the necessary object
65 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
68 *) Add experimental option FIPSSYMS to give all symbols in
69 fipscanister.o and FIPS or fips prefix. This will avoid
70 conflicts with future versions of OpenSSL. Add perl script
71 util/fipsas.pl to preprocess assembly language source files
72 and rename any affected symbols.
75 *) Add selftest checks and algorithm block of non-fips algorithms in
76 FIPS mode. Remove DES2 from selftests.
79 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
80 return internal method without any ENGINE dependencies. Add new
81 tiny fips sign and verify functions.
84 *) New build option no-ec2m to disable characteristic 2 code.
87 *) New build option "fipscanisteronly". This only builds fipscanister.o
88 and (currently) associated fips utilities. Uses the file Makefile.fips
89 instead of Makefile.org as the prototype.
92 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
93 Update fips_gcmtest to use IV generator.
96 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
97 setting output buffer to NULL. The *Final function must be
98 called although it will not retrieve any additional data. The tag
99 can be set or retrieved with a ctrl. The IV length is by default 12
100 bytes (96 bits) but can be set to an alternative value. If the IV
101 length exceeds the maximum IV length (currently 16 bytes) it cannot be
105 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
106 underlying do_cipher function handles all cipher semantics itself
107 including padding and finalisation. This is useful if (for example)
108 an ENGINE cipher handles block padding itself. The behaviour of
109 do_cipher is subtly changed if this flag is set: the return value
110 is the number of characters written to the output buffer (zero is
111 no longer an error code) or a negative error code. Also if the
112 input buffer is NULL and length 0 finalisation should be performed.
115 *) If a candidate issuer certificate is already part of the constructed
116 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
119 *) Improve forward-security support: add functions
121 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
122 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
124 for use by SSL/TLS servers; the callback function will be called whenever a
125 new session is created, and gets to decide whether the session may be
126 cached to make it resumable (return 0) or not (return 1). (As by the
127 SSL/TLS protocol specifications, the session_id sent by the server will be
128 empty to indicate that the session is not resumable; also, the server will
129 not generate RFC 4507 (RFC 5077) session tickets.)
131 A simple reasonable callback implementation is to return is_forward_secure.
132 This parameter will be set to 1 or 0 depending on the ciphersuite selected
133 by the SSL/TLS server library, indicating whether it can provide forward
135 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
137 *) Add Next Protocol Negotiation,
138 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
139 disabled with a no-npn flag to config or Configure. Code donated
141 [Adam Langley <agl@google.com> and Ben Laurie]
143 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
144 all platforms. Move ssize_t definition from e_os.h to the public
145 header file e_os2.h as it now appears in public header file cms.h
148 *) New function OPENSSL_gmtime_diff to find the difference in days
149 and seconds between two tm structures. This will be used to provide
150 additional functionality for ASN1_TIME.
153 *) New -sigopt option to the ca, req and x509 utilities. Additional
154 signature parameters can be passed using this option and in
158 *) Add RSA PSS signing function. This will generate and set the
159 appropriate AlgorithmIdentifiers for PSS based on those in the
160 corresponding EVP_MD_CTX structure. No application support yet.
163 *) Support for companion algorithm specific ASN1 signing routines.
164 New function ASN1_item_sign_ctx() signs a pre-initialised
165 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
166 the appropriate parameters.
169 *) Add new algorithm specific ASN1 verification initialisation function
170 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
171 handling will be the same no matter what EVP_PKEY_METHOD is used.
172 Add a PSS handler to support verification of PSS signatures: checked
173 against a number of sample certificates.
176 *) Add signature printing for PSS. Add PSS OIDs.
177 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
179 *) Add algorithm specific signature printing. An individual ASN1 method
180 can now print out signatures instead of the standard hex dump.
182 More complex signatures (e.g. PSS) can print out more meaningful
183 information. Include DSA version that prints out the signature
187 *) Add -trusted_first option which attempts to find certificates in the
188 trusted store even if an untrusted chain is also supplied.
191 *) Initial experimental support for explicitly trusted non-root CAs.
192 OpenSSL still tries to build a complete chain to a root but if an
193 intermediate CA has a trust setting included that is used. The first
194 setting is used: whether to trust or reject.
197 *) New -verify_name option in command line utilities to set verification
201 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
202 Add CMAC pkey methods.
205 *) Experiemental regnegotiation in s_server -www mode. If the client
206 browses /reneg connection is renegotiated. If /renegcert it is
207 renegotiated requesting a certificate.
210 *) Add an "external" session cache for debugging purposes to s_server. This
211 should help trace issues which normally are only apparent in deployed
212 multi-process servers.
215 *) Experiemental password based recipient info support for CMS library:
216 implementing RFC3211.
219 *) Split password based encryption into PBES2 and PBKDF2 functions. This
220 neatly separates the code into cipher and PBE sections and is required
221 for some algorithms that split PBES2 into separate pieces (such as
225 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
226 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
227 BIO_set_cipher() and some obscure PEM functions were changed so they
228 can now return an error. The RAND changes required a change to the
229 RAND_METHOD structure.
232 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
233 a gcc attribute to warn if the result of a function is ignored. This
234 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
235 whose return value is often ignored.
238 Changes between 1.0.0d and 1.0.1 [xx XXX xxxx]
240 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
243 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
244 elliptic curve NIST-P224 with constant-time single point multiplication on
245 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
246 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
247 flexible implementations).
249 The implementation requires support for the nonstandard type __uint128_t,
250 and so is disabled by default. To include this in your build of OpenSSL,
251 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
252 and run "make depend" (or "make update").
253 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
255 *) Permit abbreviated handshakes when renegotiating using the function
256 SSL_renegotiate_abbreviated().
257 [Robin Seggelmann <seggelmann@fh-muenster.de>]
259 *) Add call to ENGINE_register_all_complete() to
260 ENGINE_load_builtin_engines(), so some implementations get used
261 automatically instead of needing explicit application support.
264 *) Add support for TLS key exporter as described in RFC5705.
265 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
267 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
268 a few changes are required:
270 Add SSL_OP_NO_TLSv1_1 flag.
272 Update version checking logic to handle version 1.1.
273 Add explicit IV handling (ported from DTLS code).
274 Add command line options to s_client/s_server.
277 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
279 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
280 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
282 *) Fix bug in string printing code: if *any* escaping is enabled we must
283 escape the escape character (backslash) or the resulting string is
287 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
289 *) Disable code workaround for ancient and obsolete Netscape browsers
290 and servers: an attacker can use it in a ciphersuite downgrade attack.
291 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
294 *) Fixed J-PAKE implementation error, originally discovered by
295 Sebastien Martini, further info and confirmation from Stefan
296 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
299 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
301 *) Fix extension code to avoid race conditions which can result in a buffer
302 overrun vulnerability: resumed sessions must not be modified as they can
303 be shared by multiple threads. CVE-2010-3864
306 *) Fix WIN32 build system to correctly link an ENGINE directory into
310 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
312 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
314 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
316 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
318 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
319 context. The operation can be customised via the ctrl mechanism in
320 case ENGINEs want to include additional functionality.
323 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
326 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
327 output hashes compatible with older versions of OpenSSL.
328 [Willy Weisz <weisz@vcpc.univie.ac.at>]
330 *) Fix compression algorithm handling: if resuming a session use the
331 compression algorithm of the resumed session instead of determining
332 it from client hello again. Don't allow server to change algorithm.
335 *) Add load_crls() function to apps tidying load_certs() too. Add option
336 to verify utility to allow additional CRLs to be included.
339 *) Update OCSP request code to permit adding custom headers to the request:
340 some responders need this.
343 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
345 [Julia Lawall <julia@diku.dk>]
347 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
348 needlessly dereferenced structures, used obsolete functions and
349 didn't handle all updated verify codes correctly.
352 *) Disable MD2 in the default configuration.
355 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
356 indicate the initial BIO being pushed or popped. This makes it possible
357 to determine whether the BIO is the one explicitly called or as a result
358 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
359 it handles reference counts correctly and doesn't zero out the I/O bio
360 when it is not being explicitly popped. WARNING: applications which
361 included workarounds for the old buggy behaviour will need to be modified
362 or they could free up already freed BIOs.
365 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
366 renaming to all platforms (within the 0.9.8 branch, this was
367 done conditionally on Netware platforms to avoid a name clash).
368 [Guenter <lists@gknw.net>]
370 *) Add ECDHE and PSK support to DTLS.
371 [Michael Tuexen <tuexen@fh-muenster.de>]
373 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
377 *) Add "missing" function EVP_MD_flags() (without this the only way to
378 retrieve a digest flags is by accessing the structure directly. Update
379 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
380 or cipher is registered as in the "from" argument. Print out all
381 registered digests in the dgst usage message instead of manually
382 attempting to work them out.
385 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
386 this allows the use of compression and extensions. Change default cipher
387 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
388 by default unless an application cipher string requests it.
391 *) Alter match criteria in PKCS12_parse(). It used to try to use local
392 key ids to find matching certificates and keys but some PKCS#12 files
393 don't follow the (somewhat unwritten) rules and this strategy fails.
394 Now just gather all certificates together and the first private key
395 then look for the first certificate that matches the key.
398 *) Support use of registered digest and cipher names for dgst and cipher
399 commands instead of having to add each one as a special case. So now
406 openssl dgst -sha256 foo
408 and this works for ENGINE based algorithms too.
412 *) Update Gost ENGINE to support parameter files.
413 [Victor B. Wagner <vitus@cryptocom.ru>]
415 *) Support GeneralizedTime in ca utility.
416 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
418 *) Enhance the hash format used for certificate directory links. The new
419 form uses the canonical encoding (meaning equivalent names will work
420 even if they aren't identical) and uses SHA1 instead of MD5. This form
421 is incompatible with the older format and as a result c_rehash should
422 be used to rebuild symbolic links.
425 *) Make PKCS#8 the default write format for private keys, replacing the
426 traditional format. This form is standardised, more secure and doesn't
427 include an implicit MD5 dependency.
430 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
431 committed to OpenSSL should pass this lot as a minimum.
434 *) Add session ticket override functionality for use by EAP-FAST.
435 [Jouni Malinen <j@w1.fi>]
437 *) Modify HMAC functions to return a value. Since these can be implemented
438 in an ENGINE errors can occur.
441 *) Type-checked OBJ_bsearch_ex.
444 *) Type-checked OBJ_bsearch. Also some constification necessitated
445 by type-checking. Still to come: TXT_DB, bsearch(?),
446 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
450 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
451 seconds to a tm structure directly, instead of going through OS
452 specific date routines. This avoids any issues with OS routines such
453 as the year 2038 bug. New *_adj() functions for ASN1 time structures
454 and X509_time_adj_ex() to cover the extended range. The existing
455 X509_time_adj() is still usable and will no longer have any date issues.
458 *) Delta CRL support. New use deltas option which will attempt to locate
459 and search any appropriate delta CRLs available.
461 This work was sponsored by Google.
464 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
465 code and add additional score elements. Validate alternate CRL paths
466 as part of the CRL checking and indicate a new error "CRL path validation
467 error" in this case. Applications wanting additional details can use
468 the verify callback and check the new "parent" field. If this is not
469 NULL CRL path validation is taking place. Existing applications wont
470 see this because it requires extended CRL support which is off by
473 This work was sponsored by Google.
476 *) Support for freshest CRL extension.
478 This work was sponsored by Google.
481 *) Initial indirect CRL support. Currently only supported in the CRLs
482 passed directly and not via lookup. Process certificate issuer
483 CRL entry extension and lookup CRL entries by bother issuer name
484 and serial number. Check and process CRL issuer entry in IDP extension.
486 This work was sponsored by Google.
489 *) Add support for distinct certificate and CRL paths. The CRL issuer
490 certificate is validated separately in this case. Only enabled if
491 an extended CRL support flag is set: this flag will enable additional
492 CRL functionality in future.
494 This work was sponsored by Google.
497 *) Add support for policy mappings extension.
499 This work was sponsored by Google.
502 *) Fixes to pathlength constraint, self issued certificate handling,
503 policy processing to align with RFC3280 and PKITS tests.
505 This work was sponsored by Google.
508 *) Support for name constraints certificate extension. DN, email, DNS
509 and URI types are currently supported.
511 This work was sponsored by Google.
514 *) To cater for systems that provide a pointer-based thread ID rather
515 than numeric, deprecate the current numeric thread ID mechanism and
516 replace it with a structure and associated callback type. This
517 mechanism allows a numeric "hash" to be extracted from a thread ID in
518 either case, and on platforms where pointers are larger than 'long',
519 mixing is done to help ensure the numeric 'hash' is usable even if it
520 can't be guaranteed unique. The default mechanism is to use "&errno"
521 as a pointer-based thread ID to distinguish between threads.
523 Applications that want to provide their own thread IDs should now use
524 CRYPTO_THREADID_set_callback() to register a callback that will call
525 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
527 Note that ERR_remove_state() is now deprecated, because it is tied
528 to the assumption that thread IDs are numeric. ERR_remove_state(0)
529 to free the current thread's error state should be replaced by
530 ERR_remove_thread_state(NULL).
532 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
533 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
534 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
535 application was previously providing a numeric thread callback that
536 was inappropriate for distinguishing threads, then uniqueness might
537 have been obtained with &errno that happened immediately in the
538 intermediate development versions of OpenSSL; this is no longer the
539 case, the numeric thread callback will now override the automatic use
541 [Geoff Thorpe, with help from Bodo Moeller]
543 *) Initial support for different CRL issuing certificates. This covers a
544 simple case where the self issued certificates in the chain exist and
545 the real CRL issuer is higher in the existing chain.
547 This work was sponsored by Google.
550 *) Removed effectively defunct crypto/store from the build.
553 *) Revamp of STACK to provide stronger type-checking. Still to come:
554 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
555 ASN1_STRING, CONF_VALUE.
558 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
559 RAM on SSL connections. This option can save about 34k per idle SSL.
562 *) Revamp of LHASH to provide stronger type-checking. Still to come:
563 STACK, TXT_DB, bsearch, qsort.
566 *) Initial support for Cryptographic Message Syntax (aka CMS) based
567 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
568 support for data, signedData, compressedData, digestedData and
569 encryptedData, envelopedData types included. Scripts to check against
570 RFC4134 examples draft and interop and consistency checks of many
571 content types and variants.
574 *) Add options to enc utility to support use of zlib compression BIO.
577 *) Extend mk1mf to support importing of options and assembly language
578 files from Configure script, currently only included in VC-WIN32.
579 The assembly language rules can now optionally generate the source
580 files from the associated perl scripts.
583 *) Implement remaining functionality needed to support GOST ciphersuites.
584 Interop testing has been performed using CryptoPro implementations.
585 [Victor B. Wagner <vitus@cryptocom.ru>]
587 *) s390x assembler pack.
590 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
594 *) Implement Opaque PRF Input TLS extension as specified in
595 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
596 official specification yet and no extension type assignment by
597 IANA exists, this extension (for now) will have to be explicitly
598 enabled when building OpenSSL by providing the extension number
599 to use. For example, specify an option
601 -DTLSEXT_TYPE_opaque_prf_input=0x9527
603 to the "config" or "Configure" script to enable the extension,
604 assuming extension number 0x9527 (which is a completely arbitrary
605 and unofficial assignment based on the MD5 hash of the Internet
606 Draft). Note that by doing so, you potentially lose
607 interoperability with other TLS implementations since these might
608 be using the same extension number for other purposes.
610 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
611 opaque PRF input value to use in the handshake. This will create
612 an interal copy of the length-'len' string at 'src', and will
613 return non-zero for success.
615 To get more control and flexibility, provide a callback function
618 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
619 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
623 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
626 Callback function 'cb' will be called in handshakes, and is
627 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
628 Argument 'arg' is for application purposes (the value as given to
629 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
630 be provided to the callback function). The callback function
631 has to return non-zero to report success: usually 1 to use opaque
632 PRF input just if possible, or 2 to enforce use of the opaque PRF
633 input. In the latter case, the library will abort the handshake
634 if opaque PRF input is not successfully negotiated.
636 Arguments 'peerinput' and 'len' given to the callback function
637 will always be NULL and 0 in the case of a client. A server will
638 see the client's opaque PRF input through these variables if
639 available (NULL and 0 otherwise). Note that if the server
640 provides an opaque PRF input, the length must be the same as the
641 length of the client's opaque PRF input.
643 Note that the callback function will only be called when creating
644 a new session (session resumption can resume whatever was
645 previously negotiated), and will not be called in SSL 2.0
646 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
647 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
648 for applications that need to enforce opaque PRF input.
652 *) Update ssl code to support digests other than SHA1+MD5 for handshake
655 [Victor B. Wagner <vitus@cryptocom.ru>]
657 *) Add RFC4507 support to OpenSSL. This includes the corrections in
658 RFC4507bis. The encrypted ticket format is an encrypted encoded
659 SSL_SESSION structure, that way new session features are automatically
662 If a client application caches session in an SSL_SESSION structure
663 support is transparent because tickets are now stored in the encoded
666 The SSL_CTX structure automatically generates keys for ticket
667 protection in servers so again support should be possible
668 with no application modification.
670 If a client or server wishes to disable RFC4507 support then the option
671 SSL_OP_NO_TICKET can be set.
673 Add a TLS extension debugging callback to allow the contents of any client
674 or server extensions to be examined.
676 This work was sponsored by Google.
679 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
680 OpenSSL should now compile cleanly on gcc 4.2
681 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
683 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
684 support including streaming MAC support: this is required for GOST
686 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
688 *) Add option -stream to use PKCS#7 streaming in smime utility. New
689 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
690 to output in BER and PEM format.
693 *) Experimental support for use of HMAC via EVP_PKEY interface. This
694 allows HMAC to be handled via the EVP_DigestSign*() interface. The
695 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
696 ENGINE support for HMAC keys which are unextractable. New -mac and
697 -macopt options to dgst utility.
700 *) New option -sigopt to dgst utility. Update dgst to use
701 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
702 alternative signing paramaters such as X9.31 or PSS in the dgst
706 *) Change ssl_cipher_apply_rule(), the internal function that does
707 the work each time a ciphersuite string requests enabling
708 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
709 removing ("!foo+bar") a class of ciphersuites: Now it maintains
710 the order of disabled ciphersuites such that those ciphersuites
711 that most recently went from enabled to disabled not only stay
712 in order with respect to each other, but also have higher priority
713 than other disabled ciphersuites the next time ciphersuites are
716 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
717 the same ciphersuites as with "HIGH" alone, but in a specific
718 order where the PSK ciphersuites come first (since they are the
719 most recently disabled ciphersuites when "HIGH" is parsed).
721 Also, change ssl_create_cipher_list() (using this new
722 funcionality) such that between otherwise identical
723 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
727 *) Change ssl_create_cipher_list() so that it automatically
728 arranges the ciphersuites in reasonable order before starting
729 to process the rule string. Thus, the definition for "DEFAULT"
730 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
731 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
732 This makes it much easier to arrive at a reasonable default order
733 in applications for which anonymous ciphers are OK (meaning
734 that you can't actually use DEFAULT).
735 [Bodo Moeller; suggested by Victor Duchovni]
737 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
738 processing) into multiple integers instead of setting
739 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
740 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
741 (These masks as well as the individual bit definitions are hidden
742 away into the non-exported interface ssl/ssl_locl.h, so this
743 change to the definition of the SSL_CIPHER structure shouldn't
744 affect applications.) This give us more bits for each of these
745 categories, so there is no longer a need to coagulate AES128 and
746 AES256 into a single algorithm bit, and to coagulate Camellia128
747 and Camellia256 into a single algorithm bit, which has led to all
750 Thus, among other things, the kludge introduced in 0.9.7m and
751 0.9.8e for masking out AES256 independently of AES128 or masking
752 out Camellia256 independently of AES256 is not needed here in 0.9.9.
754 With the change, we also introduce new ciphersuite aliases that
755 so far were missing: "AES128", "AES256", "CAMELLIA128", and
759 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
760 Use the leftmost N bytes of the signature input if the input is
761 larger than the prime q (with N being the size in bytes of q).
764 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
765 it yet and it is largely untested.
768 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
771 *) Initial incomplete changes to avoid need for function casts in OpenSSL
772 some compilers (gcc 4.2 and later) reject their use. Safestack is
773 reimplemented. Update ASN1 to avoid use of legacy functions.
776 *) Win32/64 targets are linked with Winsock2.
779 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
780 to external functions. This can be used to increase CRL handling
781 efficiency especially when CRLs are very large by (for example) storing
782 the CRL revoked certificates in a database.
785 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
786 new CRLs added to a directory can be used. New command line option
787 -verify_return_error to s_client and s_server. This causes real errors
788 to be returned by the verify callback instead of carrying on no matter
789 what. This reflects the way a "real world" verify callback would behave.
792 *) GOST engine, supporting several GOST algorithms and public key formats.
793 Kindly donated by Cryptocom.
796 *) Partial support for Issuing Distribution Point CRL extension. CRLs
797 partitioned by DP are handled but no indirect CRL or reason partitioning
798 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
799 selected via a scoring technique which handles IDP and AKID in CRLs.
802 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
803 will ultimately be used for all verify operations: this will remove the
804 X509_STORE dependency on certificate verification and allow alternative
805 lookup methods. X509_STORE based implementations of these two callbacks.
808 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
809 Modify get_crl() to find a valid (unexpired) CRL if possible.
812 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
813 this would be called X509_CRL_cmp() but that name is already used by
814 a function that just compares CRL issuer names. Cache several CRL
815 extensions in X509_CRL structure and cache CRLDP in X509.
818 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
819 this maps equivalent X509_NAME structures into a consistent structure.
820 Name comparison can then be performed rapidly using memcmp().
823 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
827 *) Allow digests to supply their own micalg string for S/MIME type using
828 the ctrl EVP_MD_CTRL_MICALG.
831 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
832 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
833 ctrl. It can then customise the structure before and/or after signing
837 *) New function OBJ_add_sigid() to allow application defined signature OIDs
838 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
839 to free up any added signature OIDs.
842 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
843 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
844 digest and cipher tables. New options added to openssl utility:
845 list-message-digest-algorithms and list-cipher-algorithms.
848 *) Change the array representation of binary polynomials: the list
849 of degrees of non-zero coefficients is now terminated with -1.
850 Previously it was terminated with 0, which was also part of the
851 value; thus, the array representation was not applicable to
852 polynomials where t^0 has coefficient zero. This change makes
853 the array representation useful in a more general context.
856 *) Various modifications and fixes to SSL/TLS cipher string
857 handling. For ECC, the code now distinguishes between fixed ECDH
858 with RSA certificates on the one hand and with ECDSA certificates
859 on the other hand, since these are separate ciphersuites. The
860 unused code for Fortezza ciphersuites has been removed.
862 For consistency with EDH, ephemeral ECDH is now called "EECDH"
863 (not "ECDHE"). For consistency with the code for DH
864 certificates, use of ECDH certificates is now considered ECDH
865 authentication, not RSA or ECDSA authentication (the latter is
866 merely the CA's signing algorithm and not actively used in the
869 The temporary ciphersuite alias "ECCdraft" is no longer
870 available, and ECC ciphersuites are no longer excluded from "ALL"
871 and "DEFAULT". The following aliases now exist for RFC 4492
872 ciphersuites, most of these by analogy with the DH case:
874 kECDHr - ECDH cert, signed with RSA
875 kECDHe - ECDH cert, signed with ECDSA
876 kECDH - ECDH cert (signed with either RSA or ECDSA)
877 kEECDH - ephemeral ECDH
878 ECDH - ECDH cert or ephemeral ECDH
884 AECDH - anonymous ECDH
885 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
889 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
890 Use correct micalg parameters depending on digest(s) in signed message.
893 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
894 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
897 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
898 an engine to register a method. Add ENGINE lookups for methods and
899 functional reference processing.
902 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
903 EVP_{Sign,Verify}* which allow an application to customise the signature
907 *) New -resign option to smime utility. This adds one or more signers
908 to an existing PKCS#7 signedData structure. Also -md option to use an
909 alternative message digest algorithm for signing.
912 *) Tidy up PKCS#7 routines and add new functions to make it easier to
913 create PKCS7 structures containing multiple signers. Update smime
914 application to support multiple signers.
917 *) New -macalg option to pkcs12 utility to allow setting of an alternative
921 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
922 Reorganize PBE internals to lookup from a static table using NIDs,
923 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
924 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
925 PRF which will be automatically used with PBES2.
928 *) Replace the algorithm specific calls to generate keys in "req" with the
932 *) Update PKCS#7 enveloped data routines to use new API. This is now
933 supported by any public key method supporting the encrypt operation. A
934 ctrl is added to allow the public key algorithm to examine or modify
935 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
939 *) Add a ctrl to asn1 method to allow a public key algorithm to express
940 a default digest type to use. In most cases this will be SHA1 but some
941 algorithms (such as GOST) need to specify an alternative digest. The
942 return value indicates how strong the prefernce is 1 means optional and
943 2 is mandatory (that is it is the only supported type). Modify
944 ASN1_item_sign() to accept a NULL digest argument to indicate it should
945 use the default md. Update openssl utilities to use the default digest
946 type for signing if it is not explicitly indicated.
949 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
950 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
951 signing method from the key type. This effectively removes the link
952 between digests and public key types.
955 *) Add an OID cross reference table and utility functions. Its purpose is to
956 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
957 rsaEncryption. This will allow some of the algorithm specific hackery
958 needed to use the correct OID to be removed.
961 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
962 structures for PKCS7_sign(). They are now set up by the relevant public
966 *) Add provisional EC pkey method with support for ECDSA and ECDH.
969 *) Add support for key derivation (agreement) in the API, DH method and
973 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
974 public and private key formats. As a side effect these add additional
975 command line functionality not previously available: DSA signatures can be
976 generated and verified using pkeyutl and DH key support and generation in
981 [Oliver Tappe <zooey@hirschkaefer.de>]
983 *) New make target "install_html_docs" installs HTML renditions of the
985 [Oliver Tappe <zooey@hirschkaefer.de>]
987 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
988 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
989 support key and parameter generation and add initial key generation
990 functionality for RSA.
993 *) Add functions for main EVP_PKEY_method operations. The undocumented
994 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
995 EVP_PKEY_{encrypt,decrypt}_old.
998 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
999 key API, doesn't do much yet.
1002 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1003 public key algorithms. New option to openssl utility:
1004 "list-public-key-algorithms" to print out info.
1007 *) Implement the Supported Elliptic Curves Extension for
1008 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1011 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1012 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1015 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1016 utilities such as rsa, dsa, dsaparam etc except they process any key
1020 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1021 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1022 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1026 *) Initial support for pluggable public key ASN1.
1027 De-spaghettify the public key ASN1 handling. Move public and private
1028 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1029 algorithm specific handling to a single module within the relevant
1030 algorithm directory. Add functions to allow (near) opaque processing
1031 of public and private key structures.
1034 *) Implement the Supported Point Formats Extension for
1035 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1038 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1039 for the psk identity [hint] and the psk callback functions to the
1040 SSL_SESSION, SSL and SSL_CTX structure.
1043 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1047 SSL_CTX_use_psk_identity_hint
1048 SSL_get_psk_identity_hint
1049 SSL_get_psk_identity
1050 SSL_use_psk_identity_hint
1052 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1054 *) Add RFC 3161 compliant time stamp request creation, response generation
1055 and response verification functionality.
1056 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1058 *) Add initial support for TLS extensions, specifically for the server_name
1059 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1060 have new members for a host name. The SSL data structure has an
1061 additional member SSL_CTX *initial_ctx so that new sessions can be
1062 stored in that context to allow for session resumption, even after the
1063 SSL has been switched to a new SSL_CTX in reaction to a client's
1064 server_name extension.
1066 New functions (subject to change):
1068 SSL_get_servername()
1069 SSL_get_servername_type()
1072 New CTRL codes and macros (subject to change):
1074 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1075 - SSL_CTX_set_tlsext_servername_callback()
1076 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1077 - SSL_CTX_set_tlsext_servername_arg()
1078 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1080 openssl s_client has a new '-servername ...' option.
1082 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1083 '-key2 ...', '-servername_fatal' (subject to change). This allows
1084 testing the HostName extension for a specific single host name ('-cert'
1085 and '-key' remain fallbacks for handshakes without HostName
1086 negotiation). If the unrecogninzed_name alert has to be sent, this by
1087 default is a warning; it becomes fatal with the '-servername_fatal'
1090 [Peter Sylvester, Remy Allais, Christophe Renou]
1092 *) Whirlpool hash implementation is added.
1095 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1096 bn(64,32). Because of instruction set limitations it doesn't have
1097 any negative impact on performance. This was done mostly in order
1098 to make it possible to share assembler modules, such as bn_mul_mont
1099 implementations, between 32- and 64-bit builds without hassle.
1102 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1103 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1107 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1108 dedicated Montgomery multiplication procedure, is introduced.
1109 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1110 "64-bit" performance on certain 32-bit targets.
1113 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1114 in SSL structures. New SSL ctrl to set maximum send fragment size.
1115 Save memory by seeting the I/O buffer sizes dynamically instead of
1116 using the maximum available value.
1119 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1120 in addition to the text details.
1123 *) Very, very preliminary EXPERIMENTAL support for printing of general
1124 ASN1 structures. This currently produces rather ugly output and doesn't
1125 handle several customised structures at all.
1128 *) Integrated support for PVK file format and some related formats such
1129 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1130 these in the 'rsa' and 'dsa' utilities.
1133 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1136 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1137 place for the (very old) "NETSCAPE" format certificates which are now
1138 handled using new ASN1 code equivalents.
1141 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1142 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1143 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1146 *) Modify CRL distribution points extension code to print out previously
1147 unsupported fields. Enhance extension setting code to allow setting of
1151 *) Add print and set support for Issuing Distribution Point CRL extension.
1154 *) Change 'Configure' script to enable Camellia by default.
1157 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1159 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1160 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1162 *) Fix bug in string printing code: if *any* escaping is enabled we must
1163 escape the escape character (backslash) or the resulting string is
1167 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1169 *) Disable code workaround for ancient and obsolete Netscape browsers
1170 and servers: an attacker can use it in a ciphersuite downgrade attack.
1171 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1174 *) Fixed J-PAKE implementation error, originally discovered by
1175 Sebastien Martini, further info and confirmation from Stefan
1176 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1179 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1181 *) Fix extension code to avoid race conditions which can result in a buffer
1182 overrun vulnerability: resumed sessions must not be modified as they can
1183 be shared by multiple threads. CVE-2010-3864
1186 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1189 *) Don't reencode certificate when calculating signature: cache and use
1190 the original encoding instead. This makes signature verification of
1191 some broken encodings work correctly.
1194 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1195 is also one of the inputs.
1196 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1198 *) Don't repeatedly append PBE algorithms to table if they already exist.
1199 Sort table on each new add. This effectively makes the table read only
1200 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1204 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1206 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1209 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1210 access or freeing data twice (CVE-2010-0742)
1211 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1213 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1214 common in certificates and some applications which only call
1215 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1219 Reduce copying into .apps and .test in makevms.com
1220 Don't try to use blank CA certificate in CA.com
1221 Allow use of C files from original directories in maketests.com
1222 [Steven M. Schweda" <sms@antinode.info>]
1224 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1226 *) When rejecting SSL/TLS records due to an incorrect version number, never
1227 update s->server with a new major version number. As of
1228 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1229 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1230 the previous behavior could result in a read attempt at NULL when
1231 receiving specific incorrect SSL/TLS records once record payload
1232 protection is active. (CVE-2010-0740)
1233 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1235 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1236 could be crashed if the relevant tables were not present (e.g. chrooted).
1237 [Tomas Hoger <thoger@redhat.com>]
1239 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1241 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1242 [Martin Olsson, Neel Mehta]
1244 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1245 accommodate for stack sorting, always a write lock!).
1248 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1249 excessive delays in the RAND_poll(): over a minute. As a workaround
1250 include a time check in the inner Heap32Next loop too.
1253 *) The code that handled flushing of data in SSL/TLS originally used the
1254 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1255 the problem outlined in PR#1949. The fix suggested there however can
1256 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1257 of Apache). So instead simplify the code to flush unconditionally.
1258 This should be fine since flushing with no data to flush is a no op.
1261 *) Handle TLS versions 2.0 and later properly and correctly use the
1262 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1263 off ancient servers have a habit of sticking around for a while...
1266 *) Modify compression code so it frees up structures without using the
1267 ex_data callbacks. This works around a problem where some applications
1268 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1269 restarting) then use compression (e.g. SSL with compression) later.
1270 This results in significant per-connection memory leaks and
1271 has caused some security issues including CVE-2008-1678 and
1275 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1276 change when encrypting or decrypting.
1279 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1280 connect and renegotiate with servers which do not support RI.
1281 Until RI is more widely deployed this option is enabled by default.
1284 *) Add "missing" ssl ctrls to clear options and mode.
1287 *) If client attempts to renegotiate and doesn't support RI respond with
1288 a no_renegotiation alert as required by RFC5746. Some renegotiating
1289 TLS clients will continue a connection gracefully when they receive
1290 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1291 waiting for a server hello which it will never receive. Now we treat a
1292 received no_renegotiation alert as a fatal error. This is because
1293 applications requesting a renegotiation might well expect it to succeed
1294 and would have no code in place to handle the server denying it so the
1295 only safe thing to do is to terminate the connection.
1298 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1299 peer supports secure renegotiation and 0 otherwise. Print out peer
1300 renegotiation support in s_client/s_server.
1303 *) Replace the highly broken and deprecated SPKAC certification method with
1304 the updated NID creation version. This should correctly handle UTF8.
1307 *) Implement RFC5746. Re-enable renegotiation but require the extension
1308 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1309 turns out to be a bad idea. It has been replaced by
1310 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1311 SSL_CTX_set_options(). This is really not recommended unless you
1312 know what you are doing.
1313 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1315 *) Fixes to stateless session resumption handling. Use initial_ctx when
1316 issuing and attempting to decrypt tickets in case it has changed during
1317 servername handling. Use a non-zero length session ID when attempting
1318 stateless session resumption: this makes it possible to determine if
1319 a resumption has occurred immediately after receiving server hello
1320 (several places in OpenSSL subtly assume this) instead of later in
1324 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1325 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1326 fixes for a few places where the return code is not checked
1328 [Julia Lawall <julia@diku.dk>]
1330 *) Add --strict-warnings option to Configure script to include devteam
1331 warnings in other configurations.
1334 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1335 makes it possible to install openssl libraries in locations which
1336 have names other than "lib", for example "/usr/lib64" which some
1338 [Steve Henson, based on patch from Jeremy Utley]
1340 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1341 X690 8.9.12 and can produce some misleading textual output of OIDs.
1342 [Steve Henson, reported by Dan Kaminsky]
1344 *) Delete MD2 from algorithm tables. This follows the recommendation in
1345 several standards that it is not used in new applications due to
1346 several cryptographic weaknesses. For binary compatibility reasons
1347 the MD2 API is still compiled in by default.
1350 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1354 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1355 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1357 [Guenter <lists@gknw.net>]
1359 *) Fix the server certificate chain building code to use X509_verify_cert(),
1360 it used to have an ad-hoc builder which was unable to cope with anything
1361 other than a simple chain.
1362 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1364 *) Don't check self signed certificate signatures in X509_verify_cert()
1365 by default (a flag can override this): it just wastes time without
1366 adding any security. As a useful side effect self signed root CAs
1367 with non-FIPS digests are now usable in FIPS mode.
1370 *) In dtls1_process_out_of_seq_message() the check if the current message
1371 is already buffered was missing. For every new message was memory
1372 allocated, allowing an attacker to perform an denial of service attack
1373 with sending out of seq handshake messages until there is no memory
1374 left. Additionally every future messege was buffered, even if the
1375 sequence number made no sense and would be part of another handshake.
1376 So only messages with sequence numbers less than 10 in advance will be
1377 buffered. (CVE-2009-1378)
1378 [Robin Seggelmann, discovered by Daniel Mentz]
1380 *) Records are buffered if they arrive with a future epoch to be
1381 processed after finishing the corresponding handshake. There is
1382 currently no limitation to this buffer allowing an attacker to perform
1383 a DOS attack with sending records with future epochs until there is no
1384 memory left. This patch adds the pqueue_size() function to detemine
1385 the size of a buffer and limits the record buffer to 100 entries.
1387 [Robin Seggelmann, discovered by Daniel Mentz]
1389 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1390 parent structure is freed. (CVE-2009-1379)
1393 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1394 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1397 [Ilya O. <vrghost@gmail.com>]
1399 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1401 *) Disable renegotiation completely - this fixes a severe security
1402 problem (CVE-2009-3555) at the cost of breaking all
1403 renegotiation. Renegotiation can be re-enabled by setting
1404 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1405 run-time. This is really not recommended unless you know what
1409 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1411 *) Don't set val to NULL when freeing up structures, it is freed up by
1412 underlying code. If sizeof(void *) > sizeof(long) this can result in
1413 zeroing past the valid field. (CVE-2009-0789)
1414 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1416 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1417 checked correctly. This would allow some invalid signed attributes to
1418 appear to verify correctly. (CVE-2009-0591)
1419 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1421 *) Reject UniversalString and BMPString types with invalid lengths. This
1422 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1423 a legal length. (CVE-2009-0590)
1426 *) Set S/MIME signing as the default purpose rather than setting it
1427 unconditionally. This allows applications to override it at the store
1431 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1432 to handle some structures.
1435 *) Improve efficiency of mem_gets: don't search whole buffer each time
1437 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1439 *) New -hex option for openssl rand.
1442 *) Print out UTF8String and NumericString when parsing ASN1.
1445 *) Support NumericString type for name components.
1448 *) Allow CC in the environment to override the automatically chosen
1449 compiler. Note that nothing is done to ensure flags work with the
1453 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1455 *) Properly check EVP_VerifyFinal() and similar return values
1457 [Ben Laurie, Bodo Moeller, Google Security Team]
1459 *) Enable TLS extensions by default.
1462 *) Allow the CHIL engine to be loaded, whether the application is
1463 multithreaded or not. (This does not release the developer from the
1464 obligation to set up the dynamic locking callbacks.)
1465 [Sander Temme <sander@temme.net>]
1467 *) Use correct exit code if there is an error in dgst command.
1468 [Steve Henson; problem pointed out by Roland Dirlewanger]
1470 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1471 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1474 *) Add experimental JPAKE support, including demo authentication in
1475 s_client and s_server.
1478 *) Set the comparison function in v3_addr_canonize().
1479 [Rob Austein <sra@hactrn.net>]
1481 *) Add support for XMPP STARTTLS in s_client.
1482 [Philip Paeps <philip@freebsd.org>]
1484 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1485 to ensure that even with this option, only ciphersuites in the
1486 server's preference list will be accepted. (Note that the option
1487 applies only when resuming a session, so the earlier behavior was
1488 just about the algorithm choice for symmetric cryptography.)
1491 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1493 *) Fix NULL pointer dereference if a DTLS server received
1494 ChangeCipherSpec as first record (CVE-2009-1386).
1497 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1498 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1501 *) The fix in 0.9.8c that supposedly got rid of unsafe
1502 double-checked locking was incomplete for RSA blinding,
1503 addressing just one layer of what turns out to have been
1504 doubly unsafe triple-checked locking.
1506 So now fix this for real by retiring the MONT_HELPER macro
1507 in crypto/rsa/rsa_eay.c.
1509 [Bodo Moeller; problem pointed out by Marius Schilder]
1511 *) Various precautionary measures:
1513 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1515 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1516 (NB: This would require knowledge of the secret session ticket key
1517 to exploit, in which case you'd be SOL either way.)
1519 - Change bn_nist.c so that it will properly handle input BIGNUMs
1520 outside the expected range.
1522 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1525 [Neel Mehta, Bodo Moeller]
1527 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1528 the load fails. Useful for distros.
1529 [Ben Laurie and the FreeBSD team]
1531 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1534 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1537 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1539 This work was sponsored by Logica.
1542 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1543 keystores. Support for SSL/TLS client authentication too.
1544 Not compiled unless enable-capieng specified to Configure.
1546 This work was sponsored by Logica.
1549 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1550 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1551 attribute creation routines such as certifcate requests and PKCS#12
1555 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1557 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1558 handshake which could lead to a cilent crash as found using the
1559 Codenomicon TLS test suite (CVE-2008-1672)
1560 [Steve Henson, Mark Cox]
1562 *) Fix double free in TLS server name extensions which could lead to
1563 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1566 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1568 Clear the error queue to ensure that error entries left from
1569 older function calls do not interfere with the correct operation.
1570 [Lutz Jaenicke, Erik de Castro Lopo]
1572 *) Remove root CA certificates of commercial CAs:
1574 The OpenSSL project does not recommend any specific CA and does not
1575 have any policy with respect to including or excluding any CA.
1576 Therefore it does not make any sense to ship an arbitrary selection
1577 of root CA certificates with the OpenSSL software.
1580 *) RSA OAEP patches to fix two separate invalid memory reads.
1581 The first one involves inputs when 'lzero' is greater than
1582 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1583 before the beginning of from). The second one involves inputs where
1584 the 'db' section contains nothing but zeroes (there is a one-byte
1585 invalid read after the end of 'db').
1586 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1588 *) Partial backport from 0.9.9-dev:
1590 Introduce bn_mul_mont (dedicated Montgomery multiplication
1591 procedure) as a candidate for BIGNUM assembler implementation.
1592 While 0.9.9-dev uses assembler for various architectures, only
1593 x86_64 is available by default here in the 0.9.8 branch, and
1594 32-bit x86 is available through a compile-time setting.
1596 To try the 32-bit x86 assembler implementation, use Configure
1597 option "enable-montasm" (which exists only for this backport).
1599 As "enable-montasm" for 32-bit x86 disclaims code stability
1600 anyway, in this constellation we activate additional code
1601 backported from 0.9.9-dev for further performance improvements,
1602 namely BN_from_montgomery_word. (To enable this otherwise,
1603 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1605 [Andy Polyakov (backport partially by Bodo Moeller)]
1607 *) Add TLS session ticket callback. This allows an application to set
1608 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1609 values. This is useful for key rollover for example where several key
1610 sets may exist with different names.
1613 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1614 This was broken until now in 0.9.8 releases, such that the only way
1615 a registered ENGINE could be used (assuming it initialises
1616 successfully on the host) was to explicitly set it as the default
1617 for the relevant algorithms. This is in contradiction with 0.9.7
1618 behaviour and the documentation. With this fix, when an ENGINE is
1619 registered into a given algorithm's table of implementations, the
1620 'uptodate' flag is reset so that auto-discovery will be used next
1621 time a new context for that algorithm attempts to select an
1623 [Ian Lister (tweaked by Geoff Thorpe)]
1625 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1626 implemention in the following ways:
1628 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1631 Lack of BER streaming support means one pass streaming processing is
1632 only supported if data is detached: setting the streaming flag is
1633 ignored for embedded content.
1635 CMS support is disabled by default and must be explicitly enabled
1636 with the enable-cms configuration option.
1639 *) Update the GMP engine glue to do direct copies between BIGNUM and
1640 mpz_t when openssl and GMP use the same limb size. Otherwise the
1641 existing "conversion via a text string export" trick is still used.
1642 [Paul Sheer <paulsheer@gmail.com>]
1644 *) Zlib compression BIO. This is a filter BIO which compressed and
1645 uncompresses any data passed through it.
1648 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1649 RFC3394 compatible AES key wrapping.
1652 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1653 sets string data without copying. X509_ALGOR_set0() and
1654 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1655 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1656 from an X509_ATTRIBUTE structure optionally checking it occurs only
1657 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1661 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1662 to get the expected BN_FLG_CONSTTIME behavior.
1663 [Bodo Moeller (Google)]
1667 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1668 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1669 - added some more tests to do_tests.pl
1670 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1671 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1672 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1673 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1674 - various changes to netware.pl to enable gcc-cross builds on Win32
1676 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1677 - various changes to fix missing prototype warnings
1678 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1679 - added AES, WHIRLPOOL and CPUID assembler code to build files
1680 - added missing AES assembler make rules to mk1mf.pl
1681 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1682 [Guenter Knauf <eflash@gmx.net>]
1684 *) Implement certificate status request TLS extension defined in RFC3546.
1685 A client can set the appropriate parameters and receive the encoded
1686 OCSP response via a callback. A server can query the supplied parameters
1687 and set the encoded OCSP response in the callback. Add simplified examples
1688 to s_client and s_server.
1691 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1693 *) Fix various bugs:
1694 + Binary incompatibility of ssl_ctx_st structure
1695 + DTLS interoperation with non-compliant servers
1696 + Don't call get_session_cb() without proposed session
1697 + Fix ia64 assembler code
1698 [Andy Polyakov, Steve Henson]
1700 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1702 *) DTLS Handshake overhaul. There were longstanding issues with
1703 OpenSSL DTLS implementation, which were making it impossible for
1704 RFC 4347 compliant client to communicate with OpenSSL server.
1705 Unfortunately just fixing these incompatibilities would "cut off"
1706 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1707 server keeps tolerating non RFC compliant syntax. The opposite is
1708 not true, 0.9.8f client can not communicate with earlier server.
1709 This update even addresses CVE-2007-4995.
1712 *) Changes to avoid need for function casts in OpenSSL: some compilers
1713 (gcc 4.2 and later) reject their use.
1714 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1717 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1718 RFC4507bis. The encrypted ticket format is an encrypted encoded
1719 SSL_SESSION structure, that way new session features are automatically
1722 If a client application caches session in an SSL_SESSION structure
1723 support is transparent because tickets are now stored in the encoded
1726 The SSL_CTX structure automatically generates keys for ticket
1727 protection in servers so again support should be possible
1728 with no application modification.
1730 If a client or server wishes to disable RFC4507 support then the option
1731 SSL_OP_NO_TICKET can be set.
1733 Add a TLS extension debugging callback to allow the contents of any client
1734 or server extensions to be examined.
1736 This work was sponsored by Google.
1739 *) Add initial support for TLS extensions, specifically for the server_name
1740 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1741 have new members for a host name. The SSL data structure has an
1742 additional member SSL_CTX *initial_ctx so that new sessions can be
1743 stored in that context to allow for session resumption, even after the
1744 SSL has been switched to a new SSL_CTX in reaction to a client's
1745 server_name extension.
1747 New functions (subject to change):
1749 SSL_get_servername()
1750 SSL_get_servername_type()
1753 New CTRL codes and macros (subject to change):
1755 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1756 - SSL_CTX_set_tlsext_servername_callback()
1757 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1758 - SSL_CTX_set_tlsext_servername_arg()
1759 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1761 openssl s_client has a new '-servername ...' option.
1763 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1764 '-key2 ...', '-servername_fatal' (subject to change). This allows
1765 testing the HostName extension for a specific single host name ('-cert'
1766 and '-key' remain fallbacks for handshakes without HostName
1767 negotiation). If the unrecogninzed_name alert has to be sent, this by
1768 default is a warning; it becomes fatal with the '-servername_fatal'
1771 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1773 *) Add AES and SSE2 assembly language support to VC++ build.
1776 *) Mitigate attack on final subtraction in Montgomery reduction.
1779 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1780 (which previously caused an internal error).
1783 *) Squeeze another 10% out of IGE mode when in != out.
1786 *) AES IGE mode speedup.
1787 [Dean Gaudet (Google)]
1789 *) Add the Korean symmetric 128-bit cipher SEED (see
1790 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1791 add SEED ciphersuites from RFC 4162:
1793 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1794 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1795 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1796 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1798 To minimize changes between patchlevels in the OpenSSL 0.9.8
1799 series, SEED remains excluded from compilation unless OpenSSL
1800 is configured with 'enable-seed'.
1801 [KISA, Bodo Moeller]
1803 *) Mitigate branch prediction attacks, which can be practical if a
1804 single processor is shared, allowing a spy process to extract
1805 information. For detailed background information, see
1806 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1807 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1808 and Necessary Software Countermeasures"). The core of the change
1809 are new versions BN_div_no_branch() and
1810 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1811 respectively, which are slower, but avoid the security-relevant
1812 conditional branches. These are automatically called by BN_div()
1813 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1814 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1815 remove a conditional branch.
1817 BN_FLG_CONSTTIME is the new name for the previous
1818 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1819 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1820 in the exponent causes BN_mod_exp_mont() to use the alternative
1821 implementation in BN_mod_exp_mont_consttime().) The old name
1822 remains as a deprecated alias.
1824 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1825 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1826 constant-time implementations for more than just exponentiation.
1827 Here too the old name is kept as a deprecated alias.
1829 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1830 the BN_BLINDING structure gets an independent copy of the
1831 modulus. This means that the previous "BIGNUM *m" argument to
1832 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1833 essentially becomes "const BIGNUM *m", although we can't actually
1834 change this in the header file before 0.9.9. It allows
1835 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1836 enable BN_FLG_CONSTTIME.
1838 [Matthew D Wood (Intel Corp)]
1840 *) In the SSL/TLS server implementation, be strict about session ID
1841 context matching (which matters if an application uses a single
1842 external cache for different purposes). Previously,
1843 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1844 set. This did ensure strict client verification, but meant that,
1845 with applications using a single external cache for quite
1846 different requirements, clients could circumvent ciphersuite
1847 restrictions for a given session ID context by starting a session
1848 in a different context.
1851 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1852 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1853 authentication-only ciphersuites.
1856 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1857 not complete and could lead to a possible single byte overflow
1858 (CVE-2007-5135) [Ben Laurie]
1860 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1862 *) Since AES128 and AES256 (and similarly Camellia128 and
1863 Camellia256) share a single mask bit in the logic of
1864 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1865 kludge to work properly if AES128 is available and AES256 isn't
1866 (or if Camellia128 is available and Camellia256 isn't).
1869 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1870 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1871 When a point or a seed is encoded in a BIT STRING, we need to
1872 prevent the removal of trailing zero bits to get the proper DER
1873 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1874 of a NamedBitList, for which trailing 0 bits need to be removed.)
1877 *) Have SSL/TLS server implementation tolerate "mismatched" record
1878 protocol version while receiving ClientHello even if the
1879 ClientHello is fragmented. (The server can't insist on the
1880 particular protocol version it has chosen before the ServerHello
1881 message has informed the client about his choice.)
1884 *) Add RFC 3779 support.
1885 [Rob Austein for ARIN, Ben Laurie]
1887 *) Load error codes if they are not already present instead of using a
1888 static variable. This allows them to be cleanly unloaded and reloaded.
1889 Improve header file function name parsing.
1892 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1893 or CAPABILITY handshake as required by RFCs.
1896 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1898 *) Introduce limits to prevent malicious keys being able to
1899 cause a denial of service. (CVE-2006-2940)
1900 [Steve Henson, Bodo Moeller]
1902 *) Fix ASN.1 parsing of certain invalid structures that can result
1903 in a denial of service. (CVE-2006-2937) [Steve Henson]
1905 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1906 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1908 *) Fix SSL client code which could crash if connecting to a
1909 malicious SSLv2 server. (CVE-2006-4343)
1910 [Tavis Ormandy and Will Drewry, Google Security Team]
1912 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1913 match only those. Before that, "AES256-SHA" would be interpreted
1914 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1915 the same strength classification in 0.9.7h) as we currently only
1916 have a single AES bit in the ciphersuite description bitmap.
1917 That change, however, also applied to ciphersuite strings such as
1918 "RC4-MD5" that intentionally matched multiple ciphersuites --
1919 namely, SSL 2.0 ciphersuites in addition to the more common ones
1920 from SSL 3.0/TLS 1.0.
1922 So we change the selection algorithm again: Naming an explicit
1923 ciphersuite selects this one ciphersuite, and any other similar
1924 ciphersuite (same bitmap) from *other* protocol versions.
1925 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1926 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1928 Since SSL 2.0 does not have any ciphersuites for which the
1929 128/256 bit distinction would be relevant, this works for now.
1930 The proper fix will be to use different bits for AES128 and
1931 AES256, which would have avoided the problems from the beginning;
1932 however, bits are scarce, so we can only do this in a new release
1933 (not just a patchlevel) when we can change the SSL_CIPHER
1934 definition to split the single 'unsigned long mask' bitmap into
1935 multiple values to extend the available space.
1939 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1941 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1942 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1944 *) Add AES IGE and biIGE modes.
1947 *) Change the Unix randomness entropy gathering to use poll() when
1948 possible instead of select(), since the latter has some
1949 undesirable limitations.
1950 [Darryl Miles via Richard Levitte and Bodo Moeller]
1952 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1953 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1954 cannot be implicitly activated as part of, e.g., the "AES" alias.
1955 However, please upgrade to OpenSSL 0.9.9[-dev] for
1956 non-experimental use of the ECC ciphersuites to get TLS extension
1957 support, which is required for curve and point format negotiation
1958 to avoid potential handshake problems.
1961 *) Disable rogue ciphersuites:
1963 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1964 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1965 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1967 The latter two were purportedly from
1968 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1971 Also deactivate the remaining ciphersuites from
1972 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1973 unofficial, and the ID has long expired.
1976 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1977 dual-core machines) and other potential thread-safety issues.
1980 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1981 versions), which is now available for royalty-free use
1982 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1983 Also, add Camellia TLS ciphersuites from RFC 4132.
1985 To minimize changes between patchlevels in the OpenSSL 0.9.8
1986 series, Camellia remains excluded from compilation unless OpenSSL
1987 is configured with 'enable-camellia'.
1990 *) Disable the padding bug check when compression is in use. The padding
1991 bug check assumes the first packet is of even length, this is not
1992 necessarily true if compresssion is enabled and can result in false
1993 positives causing handshake failure. The actual bug test is ancient
1994 code so it is hoped that implementations will either have fixed it by
1995 now or any which still have the bug do not support compression.
1998 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2000 *) When applying a cipher rule check to see if string match is an explicit
2001 cipher suite and only match that one cipher suite if it is.
2004 *) Link in manifests for VC++ if needed.
2005 [Austin Ziegler <halostatue@gmail.com>]
2007 *) Update support for ECC-based TLS ciphersuites according to
2008 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2009 TLS extensions, which are supported starting with the 0.9.9
2010 branch, not in the OpenSSL 0.9.8 branch).
2013 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2014 opaque EVP_CIPHER_CTX handling.
2017 *) Fixes and enhancements to zlib compression code. We now only use
2018 "zlib1.dll" and use the default __cdecl calling convention on Win32
2019 to conform with the standards mentioned here:
2020 http://www.zlib.net/DLL_FAQ.txt
2021 Static zlib linking now works on Windows and the new --with-zlib-include
2022 --with-zlib-lib options to Configure can be used to supply the location
2023 of the headers and library. Gracefully handle case where zlib library
2027 *) Several fixes and enhancements to the OID generation code. The old code
2028 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2029 handle numbers larger than ULONG_MAX, truncated printing and had a
2030 non standard OBJ_obj2txt() behaviour.
2033 *) Add support for building of engines under engine/ as shared libraries
2034 under VC++ build system.
2037 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2038 Hopefully, we will not see any false combination of paths any more.
2041 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2043 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2044 (part of SSL_OP_ALL). This option used to disable the
2045 countermeasure against man-in-the-middle protocol-version
2046 rollback in the SSL 2.0 server implementation, which is a bad
2047 idea. (CVE-2005-2969)
2049 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2050 for Information Security, National Institute of Advanced Industrial
2051 Science and Technology [AIST], Japan)]
2053 *) Add two function to clear and return the verify parameter flags.
2056 *) Keep cipherlists sorted in the source instead of sorting them at
2057 runtime, thus removing the need for a lock.
2060 *) Avoid some small subgroup attacks in Diffie-Hellman.
2061 [Nick Mathewson and Ben Laurie]
2063 *) Add functions for well-known primes.
2066 *) Extended Windows CE support.
2067 [Satoshi Nakamura and Andy Polyakov]
2069 *) Initialize SSL_METHOD structures at compile time instead of during
2070 runtime, thus removing the need for a lock.
2073 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2074 attempting to decrypt each encrypted key in turn. Add support to
2078 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2080 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2083 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2086 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2087 key into the same file any more.
2090 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2093 *) Add -utf8 command line and config file option to 'ca'.
2094 [Stefan <stf@udoma.org]
2096 *) Removed the macro des_crypt(), as it seems to conflict with some
2097 libraries. Use DES_crypt().
2100 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2101 involves renaming the source and generated shared-libs for
2102 both. The engines will accept the corrected or legacy ids
2103 ('ncipher' and '4758_cca' respectively) when binding. NB,
2104 this only applies when building 'shared'.
2105 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2107 *) Add attribute functions to EVP_PKEY structure. Modify
2108 PKCS12_create() to recognize a CSP name attribute and
2109 use it. Make -CSP option work again in pkcs12 utility.
2112 *) Add new functionality to the bn blinding code:
2113 - automatic re-creation of the BN_BLINDING parameters after
2114 a fixed number of uses (currently 32)
2115 - add new function for parameter creation
2116 - introduce flags to control the update behaviour of the
2117 BN_BLINDING parameters
2118 - hide BN_BLINDING structure
2119 Add a second BN_BLINDING slot to the RSA structure to improve
2120 performance when a single RSA object is shared among several
2124 *) Add support for DTLS.
2125 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2127 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2128 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2131 *) Remove buggy and incompletet DH cert support from
2132 ssl/ssl_rsa.c and ssl/s3_both.c
2135 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2136 the apps/openssl applications.
2139 *) Compile clean with "-Wall -Wmissing-prototypes
2140 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2141 DEBUG_SAFESTACK must also be set.
2144 *) Change ./Configure so that certain algorithms can be disabled by default.
2145 The new counterpiece to "no-xxx" is "enable-xxx".
2147 The patented RC5 and MDC2 algorithms will now be disabled unless
2148 "enable-rc5" and "enable-mdc2", respectively, are specified.
2150 (IDEA remains enabled despite being patented. This is because IDEA
2151 is frequently required for interoperability, and there is no license
2152 fee for non-commercial use. As before, "no-idea" can be used to
2153 avoid this algorithm.)
2157 *) Add processing of proxy certificates (see RFC 3820). This work was
2158 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2159 EGEE (Enabling Grids for E-science in Europe).
2162 *) RC4 performance overhaul on modern architectures/implementations, such
2163 as Intel P4, IA-64 and AMD64.
2166 *) New utility extract-section.pl. This can be used specify an alternative
2167 section number in a pod file instead of having to treat each file as
2168 a separate case in Makefile. This can be done by adding two lines to the
2171 =for comment openssl_section:XXX
2173 The blank line is mandatory.
2177 *) New arguments -certform, -keyform and -pass for s_client and s_server
2178 to allow alternative format key and certificate files and passphrase
2182 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2183 update associated structures and add various utility functions.
2185 Add new policy related verify parameters, include policy checking in
2186 standard verify code. Enhance 'smime' application with extra parameters
2187 to support policy checking and print out.
2190 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2191 Nehemiah processors. These extensions support AES encryption in hardware
2192 as well as RNG (though RNG support is currently disabled).
2193 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2195 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2198 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2199 [Andy Polyakov and a number of other people]
2201 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2202 implementation contributed by IBM.
2203 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2205 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2206 exponent rather than 'unsigned long'. There is a corresponding change to
2207 the new 'rsa_keygen' element of the RSA_METHOD structure.
2208 [Jelte Jansen, Geoff Thorpe]
2210 *) Functionality for creating the initial serial number file is now
2211 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2213 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2214 number file to 1, which is bound to cause problems. To avoid
2215 the problems while respecting compatibility between different 0.9.7
2216 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2217 CA.pl for serial number initialization. With the new release 0.9.8,
2218 we can fix the problem directly in the 'ca' utility.)
2221 *) Reduced header interdepencies by declaring more opaque objects in
2222 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2223 give fewer recursive includes, which could break lazy source code - so
2224 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2225 developers should define this symbol when building and using openssl to
2226 ensure they track the recommended behaviour, interfaces, [etc], but
2227 backwards-compatible behaviour prevails when this isn't defined.
2230 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2233 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2234 This will generate a random key of the appropriate length based on the
2235 cipher context. The EVP_CIPHER can provide its own random key generation
2236 routine to support keys of a specific form. This is used in the des and
2237 3des routines to generate a key of the correct parity. Update S/MIME
2238 code to use new functions and hence generate correct parity DES keys.
2239 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2240 valid (weak or incorrect parity).
2243 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2244 as looking them up. This is useful when the verified structure may contain
2245 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2246 present unless the new PKCS7_NO_CRL flag is asserted.
2249 *) Extend ASN1 oid configuration module. It now additionally accepts the
2252 shortName = some long name, 1.2.3.4
2255 *) Reimplemented the BN_CTX implementation. There is now no more static
2256 limitation on the number of variables it can handle nor the depth of the
2257 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2258 information can now expand as required, and rather than having a single
2259 static array of bignums, BN_CTX now uses a linked-list of such arrays
2260 allowing it to expand on demand whilst maintaining the usefulness of
2261 BN_CTX's "bundling".
2264 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2265 to allow all RSA operations to function using a single BN_CTX.
2268 *) Preliminary support for certificate policy evaluation and checking. This
2269 is initially intended to pass the tests outlined in "Conformance Testing
2270 of Relying Party Client Certificate Path Processing Logic" v1.07.
2273 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2274 remained unused and not that useful. A variety of other little bignum
2275 tweaks and fixes have also been made continuing on from the audit (see
2279 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2280 associated ASN1, EVP and SSL functions and old ASN1 macros.
2283 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2284 and this should never fail. So the return value from the use of
2285 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2286 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2289 *) BN_CTX_get() should return zero-valued bignums, providing the same
2290 initialised value as BN_new().
2291 [Geoff Thorpe, suggested by Ulf Möller]
2293 *) Support for inhibitAnyPolicy certificate extension.
2296 *) An audit of the BIGNUM code is underway, for which debugging code is
2297 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2298 is considered valid when processing BIGNUMs, and causes execution to
2299 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2300 further steps are taken to deliberately pollute unused data in BIGNUM
2301 structures to try and expose faulty code further on. For now, openssl will
2302 (in its default mode of operation) continue to tolerate the inconsistent
2303 forms that it has tolerated in the past, but authors and packagers should
2304 consider trying openssl and their own applications when compiled with
2305 these debugging symbols defined. It will help highlight potential bugs in
2306 their own code, and will improve the test coverage for OpenSSL itself. At
2307 some point, these tighter rules will become openssl's default to improve
2308 maintainability, though the assert()s and other overheads will remain only
2309 in debugging configurations. See bn.h for more details.
2310 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2312 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2313 that can only be obtained through BN_CTX_new() (which implicitly
2314 initialises it). The presence of this function only made it possible
2315 to overwrite an existing structure (and cause memory leaks).
2318 *) Because of the callback-based approach for implementing LHASH as a
2319 template type, lh_insert() adds opaque objects to hash-tables and
2320 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2321 to clean up those corresponding objects before destroying the hash table
2322 (and losing the object pointers). So some over-zealous constifications in
2323 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2324 objects as "const" and the lh_doall[_arg] callback wrappers are not
2325 prototyped to have "const" restrictions on the object pointers they are
2326 given (and so aren't required to cast them away any more).
2329 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2330 (speed) prefers to use its own implementation. The two implementations
2331 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2332 its object type properly exposed (MS_TM) instead of casting to/from "char
2333 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2334 aren't necessarily the greatest nomenclatures - but this is what was used
2335 internally to the implementation so I've used that for now.
2338 *) Ensure that deprecated functions do not get compiled when
2339 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2340 the self-tests were still using deprecated key-generation functions so
2341 these have been updated also.
2344 *) Reorganise PKCS#7 code to separate the digest location functionality
2345 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2346 New function PKCS7_set_digest() to set the digest type for PKCS#7
2347 digestedData type. Add additional code to correctly generate the
2348 digestedData type and add support for this type in PKCS7 initialization
2352 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2353 structure of type "other".
2356 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2357 sure the loop does correctly stop and breaking ("division by zero")
2358 modulus operations are not performed. The (pre-generated) prime
2359 table crypto/bn/bn_prime.h was already correct, but it could not be
2360 re-generated on some platforms because of the "division by zero"
2361 situation in the script.
2362 [Ralf S. Engelschall]
2364 *) Update support for ECC-based TLS ciphersuites according to
2365 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2366 SHA-1 now is only used for "small" curves (where the
2367 representation of a field element takes up to 24 bytes); for
2368 larger curves, the field element resulting from ECDH is directly
2369 used as premaster secret.
2370 [Douglas Stebila (Sun Microsystems Laboratories)]
2372 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2373 curve secp160r1 to the tests.
2374 [Douglas Stebila (Sun Microsystems Laboratories)]
2376 *) Add the possibility to load symbols globally with DSO.
2377 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2379 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2380 control of the error stack.
2383 *) Add support for STORE in ENGINE.
2386 *) Add the STORE type. The intention is to provide a common interface
2387 to certificate and key stores, be they simple file-based stores, or
2388 HSM-type store, or LDAP stores, or...
2389 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2392 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2393 pass a list of arguments to any function as well as provide a way
2394 for a function to pass data back to the caller.
2397 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2398 works like BUF_strdup() but can be used to duplicate a portion of
2399 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2403 *) Add the function sk_find_ex() which works like sk_find(), but will
2404 return an index to an element even if an exact match couldn't be
2405 found. The index is guaranteed to point at the element where the
2406 searched-for key would be inserted to preserve sorting order.
2409 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2410 takes an extra flags argument for optional functionality. Currently,
2411 the following flags are defined:
2413 OBJ_BSEARCH_VALUE_ON_NOMATCH
2414 This one gets OBJ_bsearch_ex() to return a pointer to the first
2415 element where the comparing function returns a negative or zero
2418 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2419 This one gets OBJ_bsearch_ex() to return a pointer to the first
2420 element where the comparing function returns zero. This is useful
2421 if there are more than one element where the comparing function
2425 *) Make it possible to create self-signed certificates with 'openssl ca'
2426 in such a way that the self-signed certificate becomes part of the
2427 CA database and uses the same mechanisms for serial number generation
2428 as all other certificate signing. The new flag '-selfsign' enables
2429 this functionality. Adapt CA.sh and CA.pl.in.
2432 *) Add functionality to check the public key of a certificate request
2433 against a given private. This is useful to check that a certificate
2434 request can be signed by that key (self-signing).
2437 *) Make it possible to have multiple active certificates with the same
2438 subject in the CA index file. This is done only if the keyword
2439 'unique_subject' is set to 'no' in the main CA section (default
2440 if 'CA_default') of the configuration file. The value is saved
2441 with the database itself in a separate index attribute file,
2442 named like the index file with '.attr' appended to the name.
2445 *) Generate muti valued AVAs using '+' notation in config files for
2449 *) Support for nameConstraints certificate extension.
2452 *) Support for policyConstraints certificate extension.
2455 *) Support for policyMappings certificate extension.
2458 *) Make sure the default DSA_METHOD implementation only uses its
2459 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2460 and change its own handlers to be NULL so as to remove unnecessary
2461 indirection. This lets alternative implementations fallback to the
2462 default implementation more easily.
2465 *) Support for directoryName in GeneralName related extensions
2469 *) Make it possible to link applications using Makefile.shared.
2470 Make that possible even when linking against static libraries!
2473 *) Support for single pass processing for S/MIME signing. This now
2474 means that S/MIME signing can be done from a pipe, in addition
2475 cleartext signing (multipart/signed type) is effectively streaming
2476 and the signed data does not need to be all held in memory.
2478 This is done with a new flag PKCS7_STREAM. When this flag is set
2479 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2480 is done after the data is output (and digests calculated) in
2481 SMIME_write_PKCS7().
2484 *) Add full support for -rpath/-R, both in shared libraries and
2485 applications, at least on the platforms where it's known how
2489 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2490 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2491 will now compute a table of multiples of the generator that
2492 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2493 faster (notably in the case of a single point multiplication,
2494 scalar * generator).
2495 [Nils Larsch, Bodo Moeller]
2497 *) IPv6 support for certificate extensions. The various extensions
2498 which use the IP:a.b.c.d can now take IPv6 addresses using the
2499 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2503 *) Added an ENGINE that implements RSA by performing private key
2504 exponentiations with the GMP library. The conversions to and from
2505 GMP's mpz_t format aren't optimised nor are any montgomery forms
2506 cached, and on x86 it appears OpenSSL's own performance has caught up.
2507 However there are likely to be other architectures where GMP could
2508 provide a boost. This ENGINE is not built in by default, but it can be
2509 specified at Configure time and should be accompanied by the necessary
2510 linker additions, eg;
2511 ./config -DOPENSSL_USE_GMP -lgmp
2514 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2515 testing availability of engines with "-t" - the old behaviour is
2516 produced by increasing the feature's verbosity with "-tt".
2519 *) ECDSA routines: under certain error conditions uninitialized BN objects
2520 could be freed. Solution: make sure initialization is performed early
2521 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2525 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2526 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2527 software implementations. For DSA and DH, parameter generation can
2528 also be overriden by providing the appropriate method callbacks.
2531 *) Change the "progress" mechanism used in key-generation and
2532 primality testing to functions that take a new BN_GENCB pointer in
2533 place of callback/argument pairs. The new API functions have "_ex"
2534 postfixes and the older functions are reimplemented as wrappers for
2535 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2536 declarations of the old functions to help (graceful) attempts to
2537 migrate to the new functions. Also, the new key-generation API
2538 functions operate on a caller-supplied key-structure and return
2539 success/failure rather than returning a key or NULL - this is to
2540 help make "keygen" another member function of RSA_METHOD etc.
2542 Example for using the new callback interface:
2544 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2548 BN_GENCB_set(&my_cb, my_callback, my_arg);
2550 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2551 /* For the meaning of a, b in calls to my_callback(), see the
2552 * documentation of the function that calls the callback.
2553 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2554 * my_callback should return 1 if it wants BN_is_prime_ex()
2555 * to continue, or 0 to stop.
2560 *) Change the ZLIB compression method to be stateful, and make it
2561 available to TLS with the number defined in
2562 draft-ietf-tls-compression-04.txt.
2565 *) Add the ASN.1 structures and functions for CertificatePair, which
2566 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2568 CertificatePair ::= SEQUENCE {
2569 forward [0] Certificate OPTIONAL,
2570 reverse [1] Certificate OPTIONAL,
2571 -- at least one of the pair shall be present -- }
2573 Also implement the PEM functions to read and write certificate
2574 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2576 This needed to be defined, mostly for the sake of the LDAP
2577 attribute crossCertificatePair, but may prove useful elsewhere as
2581 *) Make it possible to inhibit symlinking of shared libraries in
2582 Makefile.shared, for Cygwin's sake.
2585 *) Extend the BIGNUM API by creating a function
2586 void BN_set_negative(BIGNUM *a, int neg);
2587 and a macro that behave like
2588 int BN_is_negative(const BIGNUM *a);
2590 to avoid the need to access 'a->neg' directly in applications.
2593 *) Implement fast modular reduction for pseudo-Mersenne primes
2594 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2595 EC_GROUP_new_curve_GFp() will now automatically use this
2597 [Nils Larsch <nla@trustcenter.de>]
2599 *) Add new lock type (CRYPTO_LOCK_BN).
2602 *) Change the ENGINE framework to automatically load engines
2603 dynamically from specific directories unless they could be
2604 found to already be built in or loaded. Move all the
2605 current engines except for the cryptodev one to a new
2607 The engines in engines/ are built as shared libraries if
2608 the "shared" options was given to ./Configure or ./config.
2609 Otherwise, they are inserted in libcrypto.a.
2610 /usr/local/ssl/engines is the default directory for dynamic
2611 engines, but that can be overriden at configure time through
2612 the usual use of --prefix and/or --openssldir, and at run
2613 time with the environment variable OPENSSL_ENGINES.
2614 [Geoff Thorpe and Richard Levitte]
2616 *) Add Makefile.shared, a helper makefile to build shared
2617 libraries. Addapt Makefile.org.
2620 *) Add version info to Win32 DLLs.
2621 [Peter 'Luna' Runestig" <peter@runestig.com>]
2623 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2624 can be added using this API to created arbitrary PKCS#12
2625 files while avoiding the low level API.
2627 New options to PKCS12_create(), key or cert can be NULL and
2628 will then be omitted from the output file. The encryption
2629 algorithm NIDs can be set to -1 for no encryption, the mac
2630 iteration count can be set to 0 to omit the mac.
2632 Enhance pkcs12 utility by making the -nokeys and -nocerts
2633 options work when creating a PKCS#12 file. New option -nomac
2634 to omit the mac, NONE can be set for an encryption algorithm.
2635 New code is modified to use the enhanced PKCS12_create()
2636 instead of the low level API.
2639 *) Extend ASN1 encoder to support indefinite length constructed
2640 encoding. This can output sequences tags and octet strings in
2641 this form. Modify pk7_asn1.c to support indefinite length
2642 encoding. This is experimental and needs additional code to
2643 be useful, such as an ASN1 bio and some enhanced streaming
2646 Extend template encode functionality so that tagging is passed
2647 down to the template encoder.
2650 *) Let 'openssl req' fail if an argument to '-newkey' is not
2651 recognized instead of using RSA as a default.
2654 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2655 As these are not official, they are not included in "ALL";
2656 the "ECCdraft" ciphersuite group alias can be used to select them.
2657 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2659 *) Add ECDH engine support.
2660 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2662 *) Add ECDH in new directory crypto/ecdh/.
2663 [Douglas Stebila (Sun Microsystems Laboratories)]
2665 *) Let BN_rand_range() abort with an error after 100 iterations
2666 without success (which indicates a broken PRNG).
2669 *) Change BN_mod_sqrt() so that it verifies that the input value
2670 is really the square of the return value. (Previously,
2671 BN_mod_sqrt would show GIGO behaviour.)
2674 *) Add named elliptic curves over binary fields from X9.62, SECG,
2675 and WAP/WTLS; add OIDs that were still missing.
2677 [Sheueling Chang Shantz and Douglas Stebila
2678 (Sun Microsystems Laboratories)]
2680 *) Extend the EC library for elliptic curves over binary fields
2681 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2684 EC_GF2m_simple_method
2688 EC_GROUP_new_curve_GF2m
2689 EC_GROUP_set_curve_GF2m
2690 EC_GROUP_get_curve_GF2m
2691 EC_POINT_set_affine_coordinates_GF2m
2692 EC_POINT_get_affine_coordinates_GF2m
2693 EC_POINT_set_compressed_coordinates_GF2m
2695 Point compression for binary fields is disabled by default for
2696 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2699 As binary polynomials are represented as BIGNUMs, various members
2700 of the EC_GROUP and EC_POINT data structures can be shared
2701 between the implementations for prime fields and binary fields;
2702 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2703 are essentially identical to their ..._GFp counterparts.
2704 (For simplicity, the '..._GFp' prefix has been dropped from
2705 various internal method names.)
2707 An internal 'field_div' method (similar to 'field_mul' and
2708 'field_sqr') has been added; this is used only for binary fields.
2710 [Sheueling Chang Shantz and Douglas Stebila
2711 (Sun Microsystems Laboratories)]
2713 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2714 through methods ('mul', 'precompute_mult').
2716 The generic implementations (now internally called 'ec_wNAF_mul'
2717 and 'ec_wNAF_precomputed_mult') remain the default if these
2718 methods are undefined.
2720 [Sheueling Chang Shantz and Douglas Stebila
2721 (Sun Microsystems Laboratories)]
2723 *) New function EC_GROUP_get_degree, which is defined through
2724 EC_METHOD. For curves over prime fields, this returns the bit
2725 length of the modulus.
2727 [Sheueling Chang Shantz and Douglas Stebila
2728 (Sun Microsystems Laboratories)]
2730 *) New functions EC_GROUP_dup, EC_POINT_dup.
2731 (These simply call ..._new and ..._copy).
2733 [Sheueling Chang Shantz and Douglas Stebila
2734 (Sun Microsystems Laboratories)]
2736 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2737 Polynomials are represented as BIGNUMs (where the sign bit is not
2738 used) in the following functions [macros]:
2741 BN_GF2m_sub [= BN_GF2m_add]
2742 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2743 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2744 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2746 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2747 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2748 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2749 BN_GF2m_cmp [= BN_ucmp]
2751 (Note that only the 'mod' functions are actually for fields GF(2^m).
2752 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2754 For some functions, an the irreducible polynomial defining a
2755 field can be given as an 'unsigned int[]' with strictly
2756 decreasing elements giving the indices of those bits that are set;
2757 i.e., p[] represents the polynomial
2758 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2760 p[0] > p[1] > ... > p[k] = 0.
2761 This applies to the following functions:
2766 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2767 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2769 BN_GF2m_mod_sqrt_arr
2770 BN_GF2m_mod_solve_quad_arr
2774 Conversion can be performed by the following functions:
2779 bntest.c has additional tests for binary polynomial arithmetic.
2781 Two implementations for BN_GF2m_mod_div() are available.
2782 The default algorithm simply uses BN_GF2m_mod_inv() and
2783 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2784 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2785 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2787 [Sheueling Chang Shantz and Douglas Stebila
2788 (Sun Microsystems Laboratories)]
2790 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2791 functionality is disabled at compile-time.
2792 [Douglas Stebila <douglas.stebila@sun.com>]
2794 *) Change default behaviour of 'openssl asn1parse' so that more
2795 information is visible when viewing, e.g., a certificate:
2797 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2798 mode the content of non-printable OCTET STRINGs is output in a
2799 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2800 avoid the appearance of a printable string.
2801 [Nils Larsch <nla@trustcenter.de>]
2803 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2805 EC_GROUP_set_asn1_flag()
2806 EC_GROUP_get_asn1_flag()
2807 EC_GROUP_set_point_conversion_form()
2808 EC_GROUP_get_point_conversion_form()
2809 These control ASN1 encoding details:
2810 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2811 has been set to OPENSSL_EC_NAMED_CURVE.
2812 - Points are encoded in uncompressed form by default; options for
2813 asn1_for are as for point2oct, namely
2814 POINT_CONVERSION_COMPRESSED
2815 POINT_CONVERSION_UNCOMPRESSED
2816 POINT_CONVERSION_HYBRID
2818 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2821 EC_GROUP_get0_seed()
2822 EC_GROUP_get_seed_len()
2823 This is used only for ASN1 purposes (so far).
2824 [Nils Larsch <nla@trustcenter.de>]
2826 *) Add 'field_type' member to EC_METHOD, which holds the NID
2827 of the appropriate field type OID. The new function
2828 EC_METHOD_get_field_type() returns this value.
2829 [Nils Larsch <nla@trustcenter.de>]
2834 EC_POINT_point2hex()
2835 EC_POINT_hex2point()
2836 providing useful interfaces to EC_POINT_point2oct() and
2837 EC_POINT_oct2point().
2838 [Nils Larsch <nla@trustcenter.de>]
2840 *) Change internals of the EC library so that the functions
2841 EC_GROUP_set_generator()
2842 EC_GROUP_get_generator()
2843 EC_GROUP_get_order()
2844 EC_GROUP_get_cofactor()
2845 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2846 to methods, which would lead to unnecessary code duplication when
2847 adding different types of curves.
2848 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2850 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2851 arithmetic, and such that modified wNAFs are generated
2852 (which avoid length expansion in many cases).
2855 *) Add a function EC_GROUP_check_discriminant() (defined via
2856 EC_METHOD) that verifies that the curve discriminant is non-zero.
2858 Add a function EC_GROUP_check() that makes some sanity tests
2859 on a EC_GROUP, its generator and order. This includes
2860 EC_GROUP_check_discriminant().
2861 [Nils Larsch <nla@trustcenter.de>]
2863 *) Add ECDSA in new directory crypto/ecdsa/.
2865 Add applications 'openssl ecparam' and 'openssl ecdsa'
2866 (these are based on 'openssl dsaparam' and 'openssl dsa').
2868 ECDSA support is also included in various other files across the
2869 library. Most notably,
2870 - 'openssl req' now has a '-newkey ecdsa:file' option;
2871 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2872 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2873 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2874 them suitable for ECDSA where domain parameters must be
2875 extracted before the specific public key;
2876 - ECDSA engine support has been added.
2877 [Nils Larsch <nla@trustcenter.de>]
2879 *) Include some named elliptic curves, and add OIDs from X9.62,
2880 SECG, and WAP/WTLS. Each curve can be obtained from the new
2882 EC_GROUP_new_by_curve_name(),
2883 and the list of available named curves can be obtained with
2884 EC_get_builtin_curves().
2885 Also add a 'curve_name' member to EC_GROUP objects, which can be
2887 EC_GROUP_set_curve_name()
2888 EC_GROUP_get_curve_name()
2889 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2891 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2892 was actually never needed) and in BN_mul(). The removal in BN_mul()
2893 required a small change in bn_mul_part_recursive() and the addition
2894 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2895 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2896 bn_sub_words() and bn_add_words() except they take arrays with
2900 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2902 *) Cleanse PEM buffers before freeing them since they may contain
2904 [Benjamin Bennett <ben@psc.edu>]
2906 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2907 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2908 authentication-only ciphersuites.
2911 *) Since AES128 and AES256 share a single mask bit in the logic of
2912 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2913 kludge to work properly if AES128 is available and AES256 isn't.
2916 *) Expand security boundary to match 1.1.1 module.
2919 *) Remove redundant features: hash file source, editing of test vectors
2920 modify fipsld to use external fips_premain.c signature.
2923 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2924 run algorithm test programs.
2927 *) Make algorithm test programs more tolerant of whitespace.
2930 *) Have SSL/TLS server implementation tolerate "mismatched" record
2931 protocol version while receiving ClientHello even if the
2932 ClientHello is fragmented. (The server can't insist on the
2933 particular protocol version it has chosen before the ServerHello
2934 message has informed the client about his choice.)
2937 *) Load error codes if they are not already present instead of using a
2938 static variable. This allows them to be cleanly unloaded and reloaded.
2941 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2943 *) Introduce limits to prevent malicious keys being able to
2944 cause a denial of service. (CVE-2006-2940)
2945 [Steve Henson, Bodo Moeller]
2947 *) Fix ASN.1 parsing of certain invalid structures that can result
2948 in a denial of service. (CVE-2006-2937) [Steve Henson]
2950 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2951 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2953 *) Fix SSL client code which could crash if connecting to a
2954 malicious SSLv2 server. (CVE-2006-4343)
2955 [Tavis Ormandy and Will Drewry, Google Security Team]
2957 *) Change ciphersuite string processing so that an explicit
2958 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2959 will no longer include "AES128-SHA"), and any other similar
2960 ciphersuite (same bitmap) from *other* protocol versions (so that
2961 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2962 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2963 changes from 0.9.8b and 0.9.8d.
2966 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2968 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2969 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2971 *) Change the Unix randomness entropy gathering to use poll() when
2972 possible instead of select(), since the latter has some
2973 undesirable limitations.
2974 [Darryl Miles via Richard Levitte and Bodo Moeller]
2976 *) Disable rogue ciphersuites:
2978 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2979 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2980 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2982 The latter two were purportedly from
2983 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2986 Also deactive the remaining ciphersuites from
2987 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2988 unofficial, and the ID has long expired.
2991 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2992 dual-core machines) and other potential thread-safety issues.
2995 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2997 *) Adapt fipsld and the build system to link against the validated FIPS
2998 module in FIPS mode.
3001 *) Fixes for VC++ 2005 build under Windows.
3004 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3005 from a Windows bash shell such as MSYS. It is autodetected from the
3006 "config" script when run from a VC++ environment. Modify standard VC++
3007 build to use fipscanister.o from the GNU make build.
3010 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3012 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3013 The value now differs depending on if you build for FIPS or not.
3014 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3015 safely run with a non-FIPSed libcrypto, as it may crash because of
3016 the difference induced by this change.
3019 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3021 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3022 (part of SSL_OP_ALL). This option used to disable the
3023 countermeasure against man-in-the-middle protocol-version
3024 rollback in the SSL 2.0 server implementation, which is a bad
3025 idea. (CVE-2005-2969)
3027 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3028 for Information Security, National Institute of Advanced Industrial
3029 Science and Technology [AIST], Japan)]
3031 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3032 mainly for FIPS compliance and not fully integrated at this stage.
3035 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3036 the exponentiation using a fixed-length exponent. (Otherwise,
3037 the information leaked through timing could expose the secret key
3038 after many signatures; cf. Bleichenbacher's attack on DSA with
3042 *) Make a new fixed-window mod_exp implementation the default for
3043 RSA, DSA, and DH private-key operations so that the sequence of
3044 squares and multiplies and the memory access pattern are
3045 independent of the particular secret key. This will mitigate
3046 cache-timing and potential related attacks.
3048 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3049 and this is automatically used by BN_mod_exp_mont() if the new flag
3050 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3051 will use this BN flag for private exponents unless the flag
3052 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3053 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3055 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3057 *) Change the client implementation for SSLv23_method() and
3058 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3059 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3060 (Previously, the SSL 2.0 backwards compatible Client Hello
3061 message format would be used even with SSL_OP_NO_SSLv2.)
3064 *) Add support for smime-type MIME parameter in S/MIME messages which some
3068 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3069 a threadsafe manner. Modify rsa code to use new function and add calls
3070 to dsa and dh code (which had race conditions before).
3073 *) Include the fixed error library code in the C error file definitions
3074 instead of fixing them up at runtime. This keeps the error code
3075 structures constant.
3078 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3080 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3083 *) Fixes for newer kerberos headers. NB: the casts are needed because
3084 the 'length' field is signed on one version and unsigned on another
3085 with no (?) obvious way to tell the difference, without these VC++
3086 complains. Also the "definition" of FAR (blank) is no longer included
3087 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3088 some needed definitions.
3091 *) Undo Cygwin change.
3094 *) Added support for proxy certificates according to RFC 3820.
3095 Because they may be a security thread to unaware applications,
3096 they must be explicitely allowed in run-time. See
3097 docs/HOWTO/proxy_certificates.txt for further information.
3100 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3102 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3103 server and client random values. Previously
3104 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3105 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3107 This change has negligible security impact because:
3109 1. Server and client random values still have 24 bytes of pseudo random
3112 2. Server and client random values are sent in the clear in the initial
3115 3. The master secret is derived using the premaster secret (48 bytes in
3116 size for static RSA ciphersuites) as well as client server and random
3119 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3122 [Stephen Henson, reported by UK NISCC]
3124 *) Use Windows randomness collection on Cygwin.
3127 *) Fix hang in EGD/PRNGD query when communication socket is closed
3128 prematurely by EGD/PRNGD.
3129 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3131 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3134 *) Back-port of selected performance improvements from development
3135 branch, as well as improved support for PowerPC platforms.
3138 *) Add lots of checks for memory allocation failure, error codes to indicate
3139 failure and freeing up memory if a failure occurs.
3140 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3142 *) Add new -passin argument to dgst.
3145 *) Perform some character comparisons of different types in X509_NAME_cmp:
3146 this is needed for some certificates that reencode DNs into UTF8Strings
3147 (in violation of RFC3280) and can't or wont issue name rollover
3151 *) Make an explicit check during certificate validation to see that
3152 the CA setting in each certificate on the chain is correct. As a
3153 side effect always do the following basic checks on extensions,
3154 not just when there's an associated purpose to the check:
3156 - if there is an unhandled critical extension (unless the user
3157 has chosen to ignore this fault)
3158 - if the path length has been exceeded (if one is set at all)
3159 - that certain extensions fit the associated purpose (if one has
3163 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3165 *) Avoid a race condition when CRLs are checked in a multi threaded
3166 environment. This would happen due to the reordering of the revoked
3167 entries during signature checking and serial number lookup. Now the
3168 encoding is cached and the serial number sort performed under a lock.
3169 Add new STACK function sk_is_sorted().
3172 *) Add Delta CRL to the extension code.
3175 *) Various fixes to s3_pkt.c so alerts are sent properly.
3176 [David Holmes <d.holmes@f5.com>]
3178 *) Reduce the chances of duplicate issuer name and serial numbers (in
3179 violation of RFC3280) using the OpenSSL certificate creation utilities.
3180 This is done by creating a random 64 bit value for the initial serial
3181 number when a serial number file is created or when a self signed
3182 certificate is created using 'openssl req -x509'. The initial serial
3183 number file is created using 'openssl x509 -next_serial' in CA.pl
3184 rather than being initialized to 1.
3187 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3189 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3190 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3191 [Joe Orton, Steve Henson]
3193 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3195 [Joe Orton, Steve Henson]
3197 *) Make it possible to have multiple active certificates with the same
3198 subject in the CA index file. This is done only if the keyword
3199 'unique_subject' is set to 'no' in the main CA section (default
3200 if 'CA_default') of the configuration file. The value is saved
3201 with the database itself in a separate index attribute file,
3202 named like the index file with '.attr' appended to the name.
3205 *) X509 verify fixes. Disable broken certificate workarounds when
3206 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3207 keyUsage extension present. Don't accept CRLs with unhandled critical
3208 extensions: since verify currently doesn't process CRL extensions this
3209 rejects a CRL with *any* critical extensions. Add new verify error codes
3213 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3214 A clarification of RFC2560 will require the use of OCTET STRINGs and
3215 some implementations cannot handle the current raw format. Since OpenSSL
3216 copies and compares OCSP nonces as opaque blobs without any attempt at
3217 parsing them this should not create any compatibility issues.
3220 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3221 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3222 this HMAC (and other) operations are several times slower than OpenSSL
3226 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3227 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3229 *) Use the correct content when signing type "other".
3232 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3234 *) Fix various bugs revealed by running the NISCC test suite:
3236 Stop out of bounds reads in the ASN1 code when presented with
3237 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3239 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3241 If verify callback ignores invalid public key errors don't try to check
3242 certificate signature with the NULL public key.
3246 *) New -ignore_err option in ocsp application to stop the server
3247 exiting on the first error in a request.
3250 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3251 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3255 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3256 extra data after the compression methods not only for TLS 1.0
3257 but also for SSL 3.0 (as required by the specification).
3258 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3260 *) Change X509_certificate_type() to mark the key as exported/exportable
3261 when it's 512 *bits* long, not 512 bytes.
3264 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3265 blocks during encryption.
3268 *) Various fixes to base64 BIO and non blocking I/O. On write
3269 flushes were not handled properly if the BIO retried. On read
3270 data was not being buffered properly and had various logic bugs.
3271 This also affects blocking I/O when the data being decoded is a
3275 *) Various S/MIME bugfixes and compatibility changes:
3276 output correct application/pkcs7 MIME type if
3277 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3278 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3279 of files as .eml work). Correctly handle very long lines in MIME
3283 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3285 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3286 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3287 a protocol version number mismatch like a decryption error
3288 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3291 *) Turn on RSA blinding by default in the default implementation
3292 to avoid a timing attack. Applications that don't want it can call
3293 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3294 They would be ill-advised to do so in most cases.
3295 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3297 *) Change RSA blinding code so that it works when the PRNG is not
3298 seeded (in this case, the secret RSA exponent is abused as
3299 an unpredictable seed -- if it is not unpredictable, there
3300 is no point in blinding anyway). Make RSA blinding thread-safe
3301 by remembering the creator's thread ID in rsa->blinding and
3302 having all other threads use local one-time blinding factors
3303 (this requires more computation than sharing rsa->blinding, but
3304 avoids excessive locking; and if an RSA object is not shared
3305 between threads, blinding will still be very fast).
3308 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3309 ENGINE as defaults for all supported algorithms irrespective of
3310 the 'flags' parameter. 'flags' is now honoured, so applications
3311 should make sure they are passing it correctly.
3314 *) Target "mingw" now allows native Windows code to be generated in
3315 the Cygwin environment as well as with the MinGW compiler.
3318 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3320 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3321 via timing by performing a MAC computation even if incorrrect
3322 block cipher padding has been found. This is a countermeasure
3323 against active attacks where the attacker has to distinguish
3324 between bad padding and a MAC verification error. (CVE-2003-0078)
3326 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3327 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3328 Martin Vuagnoux (EPFL, Ilion)]
3330 *) Make the no-err option work as intended. The intention with no-err
3331 is not to have the whole error stack handling routines removed from
3332 libcrypto, it's only intended to remove all the function name and
3333 reason texts, thereby removing some of the footprint that may not
3334 be interesting if those errors aren't displayed anyway.
3336 NOTE: it's still possible for any application or module to have it's
3337 own set of error texts inserted. The routines are there, just not
3338 used by default when no-err is given.
3341 *) Add support for FreeBSD on IA64.
3342 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3344 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3345 Kerberos function mit_des_cbc_cksum(). Before this change,
3346 the value returned by DES_cbc_cksum() was like the one from
3347 mit_des_cbc_cksum(), except the bytes were swapped.
3348 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3350 *) Allow an application to disable the automatic SSL chain building.
3351 Before this a rather primitive chain build was always performed in
3352 ssl3_output_cert_chain(): an application had no way to send the
3353 correct chain if the automatic operation produced an incorrect result.
3355 Now the chain builder is disabled if either:
3357 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3359 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3361 The reasoning behind this is that an application would not want the
3362 auto chain building to take place if extra chain certificates are
3363 present and it might also want a means of sending no additional
3364 certificates (for example the chain has two certificates and the
3368 *) Add the possibility to build without the ENGINE framework.
3369 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3371 *) Under Win32 gmtime() can return NULL: check return value in
3372 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3375 *) DSA routines: under certain error conditions uninitialized BN objects
3376 could be freed. Solution: make sure initialization is performed early
3377 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3378 Nils Larsch <nla@trustcenter.de> via PR#459)
3381 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3382 checked on reconnect on the client side, therefore session resumption
3383 could still fail with a "ssl session id is different" error. This
3384 behaviour is masked when SSL_OP_ALL is used due to
3385 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3386 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3387 followup to PR #377.
3390 *) IA-32 assembler support enhancements: unified ELF targets, support
3391 for SCO/Caldera platforms, fix for Cygwin shared build.
3394 *) Add support for FreeBSD on sparc64. As a consequence, support for
3395 FreeBSD on non-x86 processors is separate from x86 processors on
3396 the config script, much like the NetBSD support.
3397 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3399 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3401 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3404 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3405 code (06) was taken as the first octet of the session ID and the last
3406 octet was ignored consequently. As a result SSLv2 client side session
3407 caching could not have worked due to the session ID mismatch between
3409 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3413 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3414 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3418 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3419 seems that in spite of existing for more than a year, many application
3420 author have done nothing to provide the necessary callbacks, which
3421 means that this particular engine will not work properly anywhere.
3422 This is a very unfortunate situation which forces us, in the name
3423 of usability, to give the hw_ncipher.c a static lock, which is part
3425 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3426 appear in 0.9.8 or later. We EXPECT application authors to have
3427 dealt properly with this when 0.9.8 is released (unless we actually
3428 make such changes in the libcrypto locking code that changes will
3429 have to be made anyway).
3432 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3433 octets have been read, EOF or an error occurs. Without this change
3434 some truncated ASN1 structures will not produce an error.
3437 *) Disable Heimdal support, since it hasn't been fully implemented.
3438 Still give the possibility to force the use of Heimdal, but with
3439 warnings and a request that patches get sent to openssl-dev.
3442 *) Add the VC-CE target, introduce the WINCE sysname, and add
3443 INSTALL.WCE and appropriate conditionals to make it build.
3444 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3446 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3447 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3448 edit numbers of the version.
3449 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3451 *) Introduce safe string copy and catenation functions
3452 (BUF_strlcpy() and BUF_strlcat()).
3453 [Ben Laurie (CHATS) and Richard Levitte]
3455 *) Avoid using fixed-size buffers for one-line DNs.
3456 [Ben Laurie (CHATS)]
3458 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3459 resizing buffers containing secrets, and use where appropriate.
3460 [Ben Laurie (CHATS)]
3462 *) Avoid using fixed size buffers for configuration file location.
3463 [Ben Laurie (CHATS)]
3465 *) Avoid filename truncation for various CA files.
3466 [Ben Laurie (CHATS)]
3468 *) Use sizeof in preference to magic numbers.
3469 [Ben Laurie (CHATS)]
3471 *) Avoid filename truncation in cert requests.
3472 [Ben Laurie (CHATS)]
3474 *) Add assertions to check for (supposedly impossible) buffer
3476 [Ben Laurie (CHATS)]
3478 *) Don't cache truncated DNS entries in the local cache (this could
3479 potentially lead to a spoofing attack).
3480 [Ben Laurie (CHATS)]
3482 *) Fix various buffers to be large enough for hex/decimal
3483 representations in a platform independent manner.
3484 [Ben Laurie (CHATS)]
3486 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3487 resizing buffers containing secrets, and use where appropriate.
3488 [Ben Laurie (CHATS)]
3490 *) Add BIO_indent() to avoid much slightly worrying code to do
3492 [Ben Laurie (CHATS)]
3494 *) Convert sprintf()/BIO_puts() to BIO_printf().
3495 [Ben Laurie (CHATS)]
3497 *) buffer_gets() could terminate with the buffer only half
3499 [Ben Laurie (CHATS)]
3501 *) Add assertions to prevent user-supplied crypto functions from
3502 overflowing internal buffers by having large block sizes, etc.
3503 [Ben Laurie (CHATS)]
3505 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3507 [Ben Laurie (CHATS)]
3509 *) Eliminate unused copy of key in RC4.
3510 [Ben Laurie (CHATS)]
3512 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3513 [Ben Laurie (CHATS)]
3515 *) Fix off-by-one error in EGD path.
3516 [Ben Laurie (CHATS)]
3518 *) If RANDFILE path is too long, ignore instead of truncating.
3519 [Ben Laurie (CHATS)]
3521 *) Eliminate unused and incorrectly sized X.509 structure
3523 [Ben Laurie (CHATS)]
3525 *) Eliminate unused and dangerous function knumber().
3526 [Ben Laurie (CHATS)]
3528 *) Eliminate unused and dangerous structure, KSSL_ERR.
3529 [Ben Laurie (CHATS)]
3531 *) Protect against overlong session ID context length in an encoded
3532 session object. Since these are local, this does not appear to be
3534 [Ben Laurie (CHATS)]
3536 *) Change from security patch (see 0.9.6e below) that did not affect
3537 the 0.9.6 release series:
3539 Remote buffer overflow in SSL3 protocol - an attacker could
3540 supply an oversized master key in Kerberos-enabled versions.
3542 [Ben Laurie (CHATS)]
3544 *) Change the SSL kerb5 codes to match RFC 2712.
3547 *) Make -nameopt work fully for req and add -reqopt switch.
3548 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3550 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3551 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3553 *) Make sure tests can be performed even if the corresponding algorithms
3554 have been removed entirely. This was also the last step to make
3555 OpenSSL compilable with DJGPP under all reasonable conditions.
3556 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3558 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3559 to allow version independent disabling of normally unselected ciphers,
3560 which may be activated as a side-effect of selecting a single cipher.
3562 (E.g., cipher list string "RSA" enables ciphersuites that are left
3563 out of "ALL" because they do not provide symmetric encryption.
3564 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3565 [Lutz Jaenicke, Bodo Moeller]
3567 *) Add appropriate support for separate platform-dependent build
3568 directories. The recommended way to make a platform-dependent
3569 build directory is the following (tested on Linux), maybe with
3572 # Place yourself outside of the OpenSSL source tree. In
3573 # this example, the environment variable OPENSSL_SOURCE
3574 # is assumed to contain the absolute OpenSSL source directory.
3575 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3576 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3577 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3578 mkdir -p `dirname $F`
3579 ln -s $OPENSSL_SOURCE/$F $F
3582 To be absolutely sure not to disturb the source tree, a "make clean"
3583 is a good thing. If it isn't successfull, don't worry about it,
3584 it probably means the source directory is very clean.
3587 *) Make sure any ENGINE control commands make local copies of string
3588 pointers passed to them whenever necessary. Otherwise it is possible
3589 the caller may have overwritten (or deallocated) the original string
3590 data when a later ENGINE operation tries to use the stored values.
3591 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3593 *) Improve diagnostics in file reading and command-line digests.
3594 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3596 *) Add AES modes CFB and OFB to the object database. Correct an
3597 error in AES-CFB decryption.
3600 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3601 allows existing EVP_CIPHER_CTX structures to be reused after
3602 calling EVP_*Final(). This behaviour is used by encryption
3603 BIOs and some applications. This has the side effect that
3604 applications must explicitly clean up cipher contexts with
3605 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3608 *) Check the values of dna and dnb in bn_mul_recursive before calling
3609 bn_mul_comba (a non zero value means the a or b arrays do not contain
3610 n2 elements) and fallback to bn_mul_normal if either is not zero.
3613 *) Fix escaping of non-ASCII characters when using the -subj option
3614 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3617 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3618 form for "surname", serialNumber has no short form.
3619 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3620 therefore remove "mail" short name for "internet 7".
3621 The OID for unique identifiers in X509 certificates is
3622 x500UniqueIdentifier, not uniqueIdentifier.
3623 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3626 *) Add an "init" command to the ENGINE config module and auto initialize
3627 ENGINEs. Without any "init" command the ENGINE will be initialized
3628 after all ctrl commands have been executed on it. If init=1 the
3629 ENGINE is initailized at that point (ctrls before that point are run
3630 on the uninitialized ENGINE and after on the initialized one). If
3631 init=0 then the ENGINE will not be iniatialized at all.
3634 *) Fix the 'app_verify_callback' interface so that the user-defined
3635 argument is actually passed to the callback: In the
3636 SSL_CTX_set_cert_verify_callback() prototype, the callback
3637 declaration has been changed from
3640 int (*cb)(X509_STORE_CTX *,void *);
3641 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3642 i=s->ctx->app_verify_callback(&ctx)
3643 has been changed into
3644 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3646 To update applications using SSL_CTX_set_cert_verify_callback(),
3647 a dummy argument can be added to their callback functions.
3648 [D. K. Smetters <smetters@parc.xerox.com>]
3650 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3651 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3653 *) Add and OPENSSL_LOAD_CONF define which will cause
3654 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3655 This allows older applications to transparently support certain
3656 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3657 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3658 load the config file and OPENSSL_add_all_algorithms_conf() which will
3659 always load it have also been added.
3662 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3663 Adjust NIDs and EVP layer.
3664 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3666 *) Config modules support in openssl utility.
3668 Most commands now load modules from the config file,
3669 though in a few (such as version) this isn't done
3670 because it couldn't be used for anything.
3672 In the case of ca and req the config file used is
3673 the same as the utility itself: that is the -config
3674 command line option can be used to specify an
3678 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3679 use "openssl_conf" if filename is NULL use default openssl config file.
3682 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3683 config section name. Add a new flag to tolerate a missing config file
3684 and move code to CONF_modules_load_file().
3687 *) Support for crypto accelerator cards from Accelerated Encryption
3688 Processing, www.aep.ie. (Use engine 'aep')
3689 The support was copied from 0.9.6c [engine] and adapted/corrected
3690 to work with the new engine framework.
3691 [AEP Inc. and Richard Levitte]
3693 *) Support for SureWare crypto accelerator cards from Baltimore
3694 Technologies. (Use engine 'sureware')
3695 The support was copied from 0.9.6c [engine] and adapted
3696 to work with the new engine framework.
3699 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3700 make the newer ENGINE framework commands for the CHIL engine work.
3701 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3703 *) Make it possible to produce shared libraries on ReliantUNIX.
3704 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3706 *) Add the configuration target debug-linux-ppro.
3707 Make 'openssl rsa' use the general key loading routines
3708 implemented in apps.c, and make those routines able to
3709 handle the key format FORMAT_NETSCAPE and the variant
3711 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3713 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3714 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3716 *) Add -keyform to rsautl, and document -engine.
3717 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3719 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3720 BIO_R_NO_SUCH_FILE error code rather than the generic
3721 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3724 *) Add new functions
3726 ERR_peek_last_error_line
3727 ERR_peek_last_error_line_data.
3728 These are similar to
3731 ERR_peek_error_line_data,
3732 but report on the latest error recorded rather than the first one
3733 still in the error queue.
3734 [Ben Laurie, Bodo Moeller]
3736 *) default_algorithms option in ENGINE config module. This allows things
3738 default_algorithms = ALL
3739 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3742 *) Prelminary ENGINE config module.
3745 *) New experimental application configuration code.
3748 *) Change the AES code to follow the same name structure as all other
3749 symmetric ciphers, and behave the same way. Move everything to
3750 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3751 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3753 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3754 [Ben Laurie and Theo de Raadt]
3756 *) Add option to output public keys in req command.
3757 [Massimiliano Pala madwolf@openca.org]
3759 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3760 (up to about 10% better than before for P-192 and P-224).
3763 *) New functions/macros
3765 SSL_CTX_set_msg_callback(ctx, cb)
3766 SSL_CTX_set_msg_callback_arg(ctx, arg)
3767 SSL_set_msg_callback(ssl, cb)
3768 SSL_set_msg_callback_arg(ssl, arg)
3770 to request calling a callback function
3772 void cb(int write_p, int version, int content_type,
3773 const void *buf, size_t len, SSL *ssl, void *arg)
3775 whenever a protocol message has been completely received
3776 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3777 protocol version according to which the SSL library interprets
3778 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3779 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3780 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3781 specification (change_cipher_spec(20), alert(21), handshake(22)).
3782 'buf' and 'len' point to the actual message, 'ssl' to the
3783 SSL object, and 'arg' is the application-defined value set by
3784 SSL[_CTX]_set_msg_callback_arg().
3786 'openssl s_client' and 'openssl s_server' have new '-msg' options
3787 to enable a callback that displays all protocol messages.
3790 *) Change the shared library support so shared libraries are built as
3791 soon as the corresponding static library is finished, and thereby get
3792 openssl and the test programs linked against the shared library.
3793 This still only happens when the keyword "shard" has been given to
3794 the configuration scripts.
3796 NOTE: shared library support is still an experimental thing, and
3797 backward binary compatibility is still not guaranteed.
3798 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3800 *) Add support for Subject Information Access extension.
3801 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3803 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3804 additional bytes when new memory had to be allocated, not just
3805 when reusing an existing buffer.
3808 *) New command line and configuration option 'utf8' for the req command.
3809 This allows field values to be specified as UTF8 strings.
3812 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3813 runs for the former and machine-readable output for the latter.
3816 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3817 of the e-mail address in the DN (i.e., it will go into a certificate
3818 extension only). The new configuration file option 'email_in_dn = no'
3819 has the same effect.
3820 [Massimiliano Pala madwolf@openca.org]
3822 *) Change all functions with names starting with des_ to be starting
3823 with DES_ instead. Add wrappers that are compatible with libdes,
3824 but are named _ossl_old_des_*. Finally, add macros that map the
3825 des_* symbols to the corresponding _ossl_old_des_* if libdes
3826 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3827 desired, the des_* symbols will be mapped to DES_*, with one
3830 Since we provide two compatibility mappings, the user needs to
3831 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3832 compatibility is desired. The default (i.e., when that macro
3833 isn't defined) is OpenSSL 0.9.6c compatibility.
3835 There are also macros that enable and disable the support of old
3836 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3837 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3838 are defined, the default will apply: to support the old des routines.
3840 In either case, one must include openssl/des.h to get the correct
3841 definitions. Do not try to just include openssl/des_old.h, that
3844 NOTE: This is a major break of an old API into a new one. Software
3845 authors are encouraged to switch to the DES_ style functions. Some
3846 time in the future, des_old.h and the libdes compatibility functions
3847 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3848 default), and then completely removed.
3851 *) Test for certificates which contain unsupported critical extensions.
3852 If such a certificate is found during a verify operation it is
3853 rejected by default: this behaviour can be overridden by either
3854 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3855 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3856 X509_supported_extension() has also been added which returns 1 if a
3857 particular extension is supported.
3860 *) Modify the behaviour of EVP cipher functions in similar way to digests
3861 to retain compatibility with existing code.
3864 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3865 compatibility with existing code. In particular the 'ctx' parameter does
3866 not have to be to be initialized before the call to EVP_DigestInit() and
3867 it is tidied up after a call to EVP_DigestFinal(). New function
3868 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3869 EVP_MD_CTX_copy() changed to not require the destination to be
3870 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3871 requires the destination to be valid.
3873 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3874 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3877 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3878 so that complete 'Handshake' protocol structures are kept in memory
3879 instead of overwriting 'msg_type' and 'length' with 'body' data.
3882 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3883 [Massimo Santin via Richard Levitte]
3885 *) Major restructuring to the underlying ENGINE code. This includes
3886 reduction of linker bloat, separation of pure "ENGINE" manipulation
3887 (initialisation, etc) from functionality dealing with implementations
3888 of specific crypto iterfaces. This change also introduces integrated
3889 support for symmetric ciphers and digest implementations - so ENGINEs
3890 can now accelerate these by providing EVP_CIPHER and EVP_MD
3891 implementations of their own. This is detailed in crypto/engine/README
3892 as it couldn't be adequately described here. However, there are a few
3893 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3894 were changed in the original introduction of ENGINE code have now
3895 reverted back - the hooking from this code to ENGINE is now a good
3896 deal more passive and at run-time, operations deal directly with
3897 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3898 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3899 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3900 they were not being used by the framework as there is no concept of a
3901 BIGNUM_METHOD and they could not be generalised to the new
3902 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3903 ENGINE_cpy() has been removed as it cannot be consistently defined in
3907 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3910 *) Change mkdef.pl to sort symbols that get the same entry number,
3911 and make sure the automatically generated functions ERR_load_*
3912 become part of libeay.num as well.
3915 *) New function SSL_renegotiate_pending(). This returns true once
3916 renegotiation has been requested (either SSL_renegotiate() call
3917 or HelloRequest/ClientHello receveived from the peer) and becomes
3918 false once a handshake has been completed.
3919 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3920 sends a HelloRequest, but does not ensure that a handshake takes
3921 place. SSL_renegotiate_pending() is useful for checking if the
3922 client has followed the request.)
3925 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3926 By default, clients may request session resumption even during
3927 renegotiation (if session ID contexts permit); with this option,
3928 session resumption is possible only in the first handshake.
3930 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3931 more bits available for options that should not be part of
3932 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3935 *) Add some demos for certificate and certificate request creation.
3938 *) Make maximum certificate chain size accepted from the peer application
3939 settable (SSL*_get/set_max_cert_list()), as proposed by
3940 "Douglas E. Engert" <deengert@anl.gov>.
3943 *) Add support for shared libraries for Unixware-7
3944 (Boyd Lynn Gerber <gerberb@zenez.com>).
3947 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3948 be done prior to destruction. Use this to unload error strings from
3949 ENGINEs that load their own error strings. NB: This adds two new API
3950 functions to "get" and "set" this destroy handler in an ENGINE.
3953 *) Alter all existing ENGINE implementations (except "openssl" and
3954 "openbsd") to dynamically instantiate their own error strings. This
3955 makes them more flexible to be built both as statically-linked ENGINEs
3956 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3957 Also, add stub code to each that makes building them as self-contained
3958 shared-libraries easier (see README.ENGINE).
3961 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3962 implementations into applications that are completely implemented in
3963 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3964 commands that can be used to configure what shared-library to load and
3965 to control aspects of the way it is handled. Also, made an update to
3966 the README.ENGINE file that brings its information up-to-date and
3967 provides some information and instructions on the "dynamic" ENGINE
3968 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3971 *) Make it possible to unload ranges of ERR strings with a new
3972 "ERR_unload_strings" function.
3975 *) Add a copy() function to EVP_MD.
3978 *) Make EVP_MD routines take a context pointer instead of just the
3979 md_data void pointer.
3982 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3983 that the digest can only process a single chunk of data
3984 (typically because it is provided by a piece of
3985 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3986 is only going to provide a single chunk of data, and hence the
3987 framework needn't accumulate the data for oneshot drivers.
3990 *) As with "ERR", make it possible to replace the underlying "ex_data"
3991 functions. This change also alters the storage and management of global
3992 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3993 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3994 index counters. The API functions that use this state have been changed
3995 to take a "class_index" rather than pointers to the class's local STACK
3996 and counter, and there is now an API function to dynamically create new
3997 classes. This centralisation allows us to (a) plug a lot of the
3998 thread-safety problems that existed, and (b) makes it possible to clean
3999 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4000 such data would previously have always leaked in application code and
4001 workarounds were in place to make the memory debugging turn a blind eye
4002 to it. Application code that doesn't use this new function will still
4003 leak as before, but their memory debugging output will announce it now
4004 rather than letting it slide.
4006 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4007 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4008 has a return value to indicate success or failure.
4011 *) Make it possible to replace the underlying "ERR" functions such that the
4012 global state (2 LHASH tables and 2 locks) is only used by the "default"
4013 implementation. This change also adds two functions to "get" and "set"
4014 the implementation prior to it being automatically set the first time
4015 any other ERR function takes place. Ie. an application can call "get",
4016 pass the return value to a module it has just loaded, and that module
4017 can call its own "set" function using that value. This means the
4018 module's "ERR" operations will use (and modify) the error state in the
4019 application and not in its own statically linked copy of OpenSSL code.
4022 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4023 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4024 the operation, and provides a more encapsulated way for external code
4025 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4026 to use these functions rather than manually incrementing the counts.
4028 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4031 *) Add EVP test program.
4034 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4037 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4038 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4039 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4040 These allow a CRL to be built without having to access X509_CRL fields
4041 directly. Modify 'ca' application to use new functions.
4044 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4045 bug workarounds. Rollback attack detection is a security feature.
4046 The problem will only arise on OpenSSL servers when TLSv1 is not
4047 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4048 Software authors not wanting to support TLSv1 will have special reasons
4049 for their choice and can explicitly enable this option.
4050 [Bodo Moeller, Lutz Jaenicke]
4052 *) Rationalise EVP so it can be extended: don't include a union of
4053 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4054 (similar to those existing for EVP_CIPHER_CTX).
4059 EVP_MD_CTX_init(&md); /* new function call */
4060 EVP_DigestInit(&md, EVP_sha1());
4061 EVP_DigestUpdate(&md, in, len);
4062 EVP_DigestFinal(&md, out, NULL);
4063 EVP_MD_CTX_cleanup(&md); /* new function call */
4067 *) Make DES key schedule conform to the usual scheme, as well as
4068 correcting its structure. This means that calls to DES functions
4069 now have to pass a pointer to a des_key_schedule instead of a
4070 plain des_key_schedule (which was actually always a pointer
4073 des_key_schedule ks;
4075 des_set_key_checked(..., &ks);
4076 des_ncbc_encrypt(..., &ks, ...);
4078 (Note that a later change renames 'des_...' into 'DES_...'.)
4081 *) Initial reduction of linker bloat: the use of some functions, such as
4082 PEM causes large amounts of unused functions to be linked in due to
4083 poor organisation. For example pem_all.c contains every PEM function
4084 which has a knock on effect of linking in large amounts of (unused)
4085 ASN1 code. Grouping together similar functions and splitting unrelated
4086 functions prevents this.
4089 *) Cleanup of EVP macros.
4092 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4093 correct _ecb suffix.
4096 *) Add initial OCSP responder support to ocsp application. The
4097 revocation information is handled using the text based index
4098 use by the ca application. The responder can either handle
4099 requests generated internally, supplied in files (for example
4100 via a CGI script) or using an internal minimal server.
4103 *) Add configuration choices to get zlib compression for TLS.
4106 *) Changes to Kerberos SSL for RFC 2712 compliance:
4107 1. Implemented real KerberosWrapper, instead of just using
4108 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4109 2. Implemented optional authenticator field of KerberosWrapper.
4111 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4112 and authenticator structs; see crypto/krb5/.
4114 Generalized Kerberos calls to support multiple Kerberos libraries.
4115 [Vern Staats <staatsvr@asc.hpc.mil>,
4116 Jeffrey Altman <jaltman@columbia.edu>
4117 via Richard Levitte]
4119 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4120 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4121 values for each of the key sizes rather than having just
4122 parameters (and 'speed' generating keys each time).
4125 *) Speed up EVP routines.
4128 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4129 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4130 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4131 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4133 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4134 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4135 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4138 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4140 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4143 *) Added the OS2-EMX target.
4144 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4146 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4147 to support NCONF routines in extension code. New function CONF_set_nconf()
4148 to allow functions which take an NCONF to also handle the old LHASH
4149 structure: this means that the old CONF compatible routines can be
4150 retained (in particular wrt extensions) without having to duplicate the
4151 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4154 *) Enhance the general user interface with mechanisms for inner control
4155 and with possibilities to have yes/no kind of prompts.
4158 *) Change all calls to low level digest routines in the library and
4159 applications to use EVP. Add missing calls to HMAC_cleanup() and
4160 don't assume HMAC_CTX can be copied using memcpy().
4161 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4163 *) Add the possibility to control engines through control names but with
4164 arbitrary arguments instead of just a string.
4165 Change the key loaders to take a UI_METHOD instead of a callback
4166 function pointer. NOTE: this breaks binary compatibility with earlier
4167 versions of OpenSSL [engine].
4168 Adapt the nCipher code for these new conditions and add a card insertion
4172 *) Enhance the general user interface with mechanisms to better support
4173 dialog box interfaces, application-defined prompts, the possibility
4174 to use defaults (for example default passwords from somewhere else)
4175 and interrupts/cancellations.
4178 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4179 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4182 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4183 tidy up some unnecessarily weird code in 'sk_new()').
4184 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4186 *) Change the key loading routines for ENGINEs to use the same kind
4187 callback (pem_password_cb) as all other routines that need this
4191 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4192 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4193 than this minimum value is recommended.
4196 *) New random seeder for OpenVMS, using the system process statistics
4197 that are easily reachable.
4200 *) Windows apparently can't transparently handle global
4201 variables defined in DLLs. Initialisations such as:
4203 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4205 wont compile. This is used by the any applications that need to
4206 declare their own ASN1 modules. This was fixed by adding the option
4207 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4208 needed for static libraries under Win32.
4211 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4212 setting of purpose and trust fields. New X509_STORE trust and
4213 purpose functions and tidy up setting in other SSL functions.
4216 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4217 structure. These are inherited by X509_STORE_CTX when it is
4218 initialised. This allows various defaults to be set in the
4219 X509_STORE structure (such as flags for CRL checking and custom
4220 purpose or trust settings) for functions which only use X509_STORE_CTX
4221 internally such as S/MIME.
4223 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4224 trust settings if they are not set in X509_STORE. This allows X509_STORE
4225 purposes and trust (in S/MIME for example) to override any set by default.
4227 Add command line options for CRL checking to smime, s_client and s_server
4231 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4232 are set then the CRL is looked up in the X509_STORE structure and
4233 its validity and signature checked, then if the certificate is found
4234 in the CRL the verify fails with a revoked error.
4236 Various new CRL related callbacks added to X509_STORE_CTX structure.
4238 Command line options added to 'verify' application to support this.
4240 This needs some additional work, such as being able to handle multiple
4241 CRLs with different times, extension based lookup (rather than just
4242 by subject name) and ultimately more complete V2 CRL extension
4246 *) Add a general user interface API (crypto/ui/). This is designed
4247 to replace things like des_read_password and friends (backward
4248 compatibility functions using this new API are provided).
4249 The purpose is to remove prompting functions from the DES code
4250 section as well as provide for prompting through dialog boxes in
4251 a window system and the like.
4254 *) Add "ex_data" support to ENGINE so implementations can add state at a
4255 per-structure level rather than having to store it globally.
4258 *) Make it possible for ENGINE structures to be copied when retrieved by
4259 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4260 This causes the "original" ENGINE structure to act like a template,
4261 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4262 operational state can be localised to each ENGINE structure, despite the
4263 fact they all share the same "methods". New ENGINE structures returned in
4264 this case have no functional references and the return value is the single
4265 structural reference. This matches the single structural reference returned
4266 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4270 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4271 needs to match any other type at all we need to manually clear the
4275 *) Changes to the "openssl engine" utility to include;
4276 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4277 about an ENGINE's available control commands.
4278 - executing control commands from command line arguments using the
4279 '-pre' and '-post' switches. '-post' is only used if '-t' is
4280 specified and the ENGINE is successfully initialised. The syntax for
4281 the individual commands are colon-separated, for example;
4282 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4285 *) New dynamic control command support for ENGINEs. ENGINEs can now
4286 declare their own commands (numbers), names (strings), descriptions,
4287 and input types for run-time discovery by calling applications. A
4288 subset of these commands are implicitly classed as "executable"
4289 depending on their input type, and only these can be invoked through
4290 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4291 can be based on user input, config files, etc). The distinction is
4292 that "executable" commands cannot return anything other than a boolean
4293 result and can only support numeric or string input, whereas some
4294 discoverable commands may only be for direct use through
4295 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4296 pointers, or other custom uses. The "executable" commands are to
4297 support parameterisations of ENGINE behaviour that can be
4298 unambiguously defined by ENGINEs and used consistently across any
4299 OpenSSL-based application. Commands have been added to all the
4300 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4301 control over shared-library paths without source code alterations.
4304 *) Changed all ENGINE implementations to dynamically allocate their
4305 ENGINEs rather than declaring them statically. Apart from this being
4306 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4307 this also allows the implementations to compile without using the
4308 internal engine_int.h header.
4311 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4312 'const' value. Any code that should be able to modify a RAND_METHOD
4313 should already have non-const pointers to it (ie. they should only
4314 modify their own ones).
4317 *) Made a variety of little tweaks to the ENGINE code.
4318 - "atalla" and "ubsec" string definitions were moved from header files
4319 to C code. "nuron" string definitions were placed in variables
4320 rather than hard-coded - allowing parameterisation of these values
4321 later on via ctrl() commands.
4322 - Removed unused "#if 0"'d code.
4323 - Fixed engine list iteration code so it uses ENGINE_free() to release
4324 structural references.
4325 - Constified the RAND_METHOD element of ENGINE structures.
4326 - Constified various get/set functions as appropriate and added
4327 missing functions (including a catch-all ENGINE_cpy that duplicates
4328 all ENGINE values onto a new ENGINE except reference counts/state).
4329 - Removed NULL parameter checks in get/set functions. Setting a method
4330 or function to NULL is a way of cancelling out a previously set
4331 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4332 and doesn't justify the extra error symbols and code.
4333 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4334 flags from engine_int.h to engine.h.
4335 - Changed prototypes for ENGINE handler functions (init(), finish(),
4336 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4339 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4340 to the algorithm using long division. The binary algorithm can be
4341 used only if the modulus is odd. On 32-bit systems, it is faster
4342 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4343 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4344 up to 450 bits. In 64-bit environments, the binary algorithm
4345 appears to be advantageous for much longer moduli; here we use it
4346 for moduli up to 2048 bits.
4349 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4350 could not support the combine flag in choice fields.
4353 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4354 extensions from a certificate request to the certificate.
4357 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4358 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4359 file: this allows the display of the certificate about to be
4360 signed to be customised, to allow certain fields to be included
4361 or excluded and extension details. The old system didn't display
4362 multicharacter strings properly, omitted fields not in the policy
4363 and couldn't display additional details such as extensions.
4366 *) Function EC_POINTs_mul for multiple scalar multiplication
4367 of an arbitrary number of elliptic curve points
4368 \sum scalars[i]*points[i],
4369 optionally including the generator defined for the EC_GROUP:
4370 scalar*generator + \sum scalars[i]*points[i].
4372 EC_POINT_mul is a simple wrapper function for the typical case
4373 that the point list has just one item (besides the optional
4377 *) First EC_METHODs for curves over GF(p):
4379 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4380 operations and provides various method functions that can also
4381 operate with faster implementations of modular arithmetic.
4383 EC_GFp_mont_method() reuses most functions that are part of
4384 EC_GFp_simple_method, but uses Montgomery arithmetic.
4386 [Bodo Moeller; point addition and point doubling
4387 implementation directly derived from source code provided by
4388 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4390 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4391 crypto/ec/ec_lib.c):
4393 Curves are EC_GROUP objects (with an optional group generator)
4394 based on EC_METHODs that are built into the library.
4396 Points are EC_POINT objects based on EC_GROUP objects.
4398 Most of the framework would be able to handle curves over arbitrary
4399 finite fields, but as there are no obvious types for fields other
4400 than GF(p), some functions are limited to that for now.
4403 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4404 that the file contains a complete HTTP response.
4407 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4408 change the def and num file printf format specifier from "%-40sXXX"
4409 to "%-39s XXX". The latter will always guarantee a space after the
4410 field while the former will cause them to run together if the field
4411 is 40 of more characters long.
4414 *) Constify the cipher and digest 'method' functions and structures
4415 and modify related functions to take constant EVP_MD and EVP_CIPHER
4419 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4420 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4423 *) Modify EVP_Digest*() routines so they now return values. Although the
4424 internal software routines can never fail additional hardware versions
4428 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4430 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4431 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4434 ERR_R_NESTED_ASN1_ERROR
4436 ERR_R_MISSING_ASN1_EOS
4437 were 4 .. 9, conflicting with
4438 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4440 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4441 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4443 Add new error code 'ERR_R_INTERNAL_ERROR'.
4446 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4450 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4451 sets the subject name for a new request or supersedes the
4452 subject name in a given request. Formats that can be parsed are
4453 'CN=Some Name, OU=myOU, C=IT'
4455 'CN=Some Name/OU=myOU/C=IT'.
4457 Add options '-batch' and '-verbose' to 'openssl req'.
4458 [Massimiliano Pala <madwolf@hackmasters.net>]
4460 *) Introduce the possibility to access global variables through
4461 functions on platform were that's the best way to handle exporting
4462 global variables in shared libraries. To enable this functionality,
4463 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4464 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4465 is normally done by Configure or something similar).
4467 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4468 in the source file (foo.c) like this:
4470 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4471 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4473 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4474 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4476 OPENSSL_DECLARE_GLOBAL(int,foo);
4477 #define foo OPENSSL_GLOBAL_REF(foo)
4478 OPENSSL_DECLARE_GLOBAL(double,bar);
4479 #define bar OPENSSL_GLOBAL_REF(bar)
4481 The #defines are very important, and therefore so is including the
4482 header file everywhere where the defined globals are used.
4484 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4485 of ASN.1 items, but that structure is a bit different.
4487 The largest change is in util/mkdef.pl which has been enhanced with
4488 better and easier to understand logic to choose which symbols should
4489 go into the Windows .def files as well as a number of fixes and code
4490 cleanup (among others, algorithm keywords are now sorted
4491 lexicographically to avoid constant rewrites).
4494 *) In BN_div() keep a copy of the sign of 'num' before writing the
4495 result to 'rm' because if rm==num the value will be overwritten
4496 and produce the wrong result if 'num' is negative: this caused
4497 problems with BN_mod() and BN_nnmod().
4500 *) Function OCSP_request_verify(). This checks the signature on an
4501 OCSP request and verifies the signer certificate. The signer
4502 certificate is just checked for a generic purpose and OCSP request
4506 *) Add OCSP_check_validity() function to check the validity of OCSP
4507 responses. OCSP responses are prepared in real time and may only
4508 be a few seconds old. Simply checking that the current time lies
4509 between thisUpdate and nextUpdate max reject otherwise valid responses
4510 caused by either OCSP responder or client clock inaccuracy. Instead
4511 we allow thisUpdate and nextUpdate to fall within a certain period of
4512 the current time. The age of the response can also optionally be
4513 checked. Two new options -validity_period and -status_age added to
4517 *) If signature or public key algorithm is unrecognized print out its
4518 OID rather that just UNKNOWN.
4521 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4522 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4523 ID to be generated from the issuer certificate alone which can then be
4524 passed to OCSP_id_issuer_cmp().
4527 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4528 ASN1 modules to export functions returning ASN1_ITEM pointers
4529 instead of the ASN1_ITEM structures themselves. This adds several
4530 new macros which allow the underlying ASN1 function/structure to
4531 be accessed transparently. As a result code should not use ASN1_ITEM
4532 references directly (such as &X509_it) but instead use the relevant
4533 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4534 use of the new ASN1 code on platforms where exporting structures
4535 is problematical (for example in shared libraries) but exporting
4536 functions returning pointers to structures is not.
4539 *) Add support for overriding the generation of SSL/TLS session IDs.
4540 These callbacks can be registered either in an SSL_CTX or per SSL.
4541 The purpose of this is to allow applications to control, if they wish,
4542 the arbitrary values chosen for use as session IDs, particularly as it
4543 can be useful for session caching in multiple-server environments. A
4544 command-line switch for testing this (and any client code that wishes
4545 to use such a feature) has been added to "s_server".
4546 [Geoff Thorpe, Lutz Jaenicke]
4548 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4549 of the form '#if defined(...) || defined(...) || ...' and
4550 '#if !defined(...) && !defined(...) && ...'. This also avoids
4551 the growing number of special cases it was previously handling.
4554 *) Make all configuration macros available for application by making
4555 sure they are available in opensslconf.h, by giving them names starting
4556 with "OPENSSL_" to avoid conflicts with other packages and by making
4557 sure e_os2.h will cover all platform-specific cases together with
4559 Additionally, it is now possible to define configuration/platform-
4560 specific names (called "system identities"). In the C code, these
4561 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4562 macro with the name beginning with "OPENSSL_SYS_", which is determined
4563 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4567 *) New option -set_serial to 'req' and 'x509' this allows the serial
4568 number to use to be specified on the command line. Previously self
4569 signed certificates were hard coded with serial number 0 and the
4570 CA options of 'x509' had to use a serial number in a file which was
4574 *) New options to 'ca' utility to support V2 CRL entry extensions.
4575 Currently CRL reason, invalidity date and hold instruction are
4576 supported. Add new CRL extensions to V3 code and some new objects.
4579 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4580 disable standard block padding (aka PKCS#5 padding) in the EVP
4581 API, which was previously mandatory. This means that the data is
4582 not padded in any way and so the total length much be a multiple
4583 of the block size, otherwise an error occurs.
4586 *) Initial (incomplete) OCSP SSL support.
4589 *) New function OCSP_parse_url(). This splits up a URL into its host,
4590 port and path components: primarily to parse OCSP URLs. New -url
4591 option to ocsp utility.
4594 *) New nonce behavior. The return value of OCSP_check_nonce() now
4595 reflects the various checks performed. Applications can decide
4596 whether to tolerate certain situations such as an absent nonce
4597 in a response when one was present in a request: the ocsp application
4598 just prints out a warning. New function OCSP_add1_basic_nonce()
4599 this is to allow responders to include a nonce in a response even if
4600 the request is nonce-less.
4603 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4604 skipped when using openssl x509 multiple times on a single input file,
4605 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4608 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4609 set string type: to handle setting ASN1_TIME structures. Fix ca
4610 utility to correctly initialize revocation date of CRLs.
4613 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4614 the clients preferred ciphersuites and rather use its own preferences.
4615 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4616 Internet Explorer by ensuring unchanged hash method during stepup.
4617 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4620 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4621 to aes and add a new 'exist' option to print out symbols that don't
4625 *) Additional options to ocsp utility to allow flags to be set and
4626 additional certificates supplied.
4629 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4630 OCSP client a number of certificate to only verify the response
4634 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4635 handle the new API. Currently only ECB, CBC modes supported. Add new
4638 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4639 Encryption Standard (AES) Ciphersuites for Transport Layer
4640 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4641 not enabled by default and were not part of the "ALL" ciphersuite
4642 alias because they were not yet official; they could be
4643 explicitly requested by specifying the "AESdraft" ciphersuite
4644 group alias. In the final release of OpenSSL 0.9.7, the group
4645 alias is called "AES" and is part of "ALL".)
4646 [Ben Laurie, Steve Henson, Bodo Moeller]
4648 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4649 request to response.
4652 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4653 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4654 extract information from a certificate request. OCSP_response_create()
4655 creates a response and optionally adds a basic response structure.
4656 OCSP_basic_add1_status() adds a complete single response to a basic
4657 response and returns the OCSP_SINGLERESP structure just added (to allow
4658 extensions to be included for example). OCSP_basic_add1_cert() adds a
4659 certificate to a basic response and OCSP_basic_sign() signs a basic
4660 response with various flags. New helper functions ASN1_TIME_check()
4661 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4662 (converts ASN1_TIME to GeneralizedTime).
4665 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4666 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4667 structure from a certificate. X509_pubkey_digest() digests the public_key
4668 contents: this is used in various key identifiers.
4671 *) Make sk_sort() tolerate a NULL argument.
4672 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4674 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4675 passed by the function are trusted implicitly. If any of them signed the
4676 response then it is assumed to be valid and is not verified.
4679 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4680 to data. This was previously part of the PKCS7 ASN1 code. This
4681 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4682 [Steve Henson, reported by Kenneth R. Robinette
4683 <support@securenetterm.com>]
4685 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4686 routines: without these tracing memory leaks is very painful.
4687 Fix leaks in PKCS12 and PKCS7 routines.
4690 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4691 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4692 effectively meant GeneralizedTime would never be used. Now it
4693 is initialised to -1 but X509_time_adj() now has to check the value
4694 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4695 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4696 [Steve Henson, reported by Kenneth R. Robinette
4697 <support@securenetterm.com>]
4699 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4700 result in a zero length in the ASN1_INTEGER structure which was
4701 not consistent with the structure when d2i_ASN1_INTEGER() was used
4702 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4703 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4704 where it did not print out a minus for negative ASN1_INTEGER.
4707 *) Add summary printout to ocsp utility. The various functions which
4708 convert status values to strings have been renamed to:
4709 OCSP_response_status_str(), OCSP_cert_status_str() and
4710 OCSP_crl_reason_str() and are no longer static. New options
4711 to verify nonce values and to disable verification. OCSP response
4712 printout format cleaned up.
4715 *) Add additional OCSP certificate checks. These are those specified
4716 in RFC2560. This consists of two separate checks: the CA of the
4717 certificate being checked must either be the OCSP signer certificate
4718 or the issuer of the OCSP signer certificate. In the latter case the
4719 OCSP signer certificate must contain the OCSP signing extended key
4720 usage. This check is performed by attempting to match the OCSP
4721 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4722 in the OCSP_CERTID structures of the response.
4725 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4726 and related routines. This uses the standard OpenSSL certificate
4727 verify routines to perform initial checks (just CA validity) and
4728 to obtain the certificate chain. Then additional checks will be
4729 performed on the chain. Currently the root CA is checked to see
4730 if it is explicitly trusted for OCSP signing. This is used to set
4731 a root CA as a global signing root: that is any certificate that
4732 chains to that CA is an acceptable OCSP signing certificate.
4735 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4736 extensions from a separate configuration file.
4737 As when reading extensions from the main configuration file,
4738 the '-extensions ...' option may be used for specifying the
4740 [Massimiliano Pala <madwolf@comune.modena.it>]
4742 *) New OCSP utility. Allows OCSP requests to be generated or
4743 read. The request can be sent to a responder and the output
4744 parsed, outputed or printed in text form. Not complete yet:
4745 still needs to check the OCSP response validity.
4748 *) New subcommands for 'openssl ca':
4749 'openssl ca -status <serial>' prints the status of the cert with
4750 the given serial number (according to the index file).
4751 'openssl ca -updatedb' updates the expiry status of certificates
4753 [Massimiliano Pala <madwolf@comune.modena.it>]
4755 *) New '-newreq-nodes' command option to CA.pl. This is like
4756 '-newreq', but calls 'openssl req' with the '-nodes' option
4757 so that the resulting key is not encrypted.
4758 [Damien Miller <djm@mindrot.org>]
4760 *) New configuration for the GNU Hurd.
4761 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4763 *) Initial code to implement OCSP basic response verify. This
4764 is currently incomplete. Currently just finds the signer's
4765 certificate and verifies the signature on the response.
4768 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4769 value of OPENSSLDIR. This is available via the new '-d' option
4770 to 'openssl version', and is also included in 'openssl version -a'.
4773 *) Allowing defining memory allocation callbacks that will be given
4774 file name and line number information in additional arguments
4775 (a const char* and an int). The basic functionality remains, as
4776 well as the original possibility to just replace malloc(),
4777 realloc() and free() by functions that do not know about these
4778 additional arguments. To register and find out the current
4779 settings for extended allocation functions, the following
4780 functions are provided:
4782 CRYPTO_set_mem_ex_functions
4783 CRYPTO_set_locked_mem_ex_functions
4784 CRYPTO_get_mem_ex_functions
4785 CRYPTO_get_locked_mem_ex_functions
4787 These work the same way as CRYPTO_set_mem_functions and friends.
4788 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4789 extended allocation function is enabled.
4790 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4791 a conventional allocation function is enabled.
4792 [Richard Levitte, Bodo Moeller]
4794 *) Finish off removing the remaining LHASH function pointer casts.
4795 There should no longer be any prototype-casting required when using
4796 the LHASH abstraction, and any casts that remain are "bugs". See
4797 the callback types and macros at the head of lhash.h for details
4798 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4801 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4802 If /dev/[u]random devices are not available or do not return enough
4803 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4805 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4806 /etc/entropy will be queried once each in this sequence, quering stops
4807 when enough entropy was collected without querying more sockets.
4810 *) Change the Unix RAND_poll() variant to be able to poll several
4811 random devices, as specified by DEVRANDOM, until a sufficient amount
4812 of data has been collected. We spend at most 10 ms on each file
4813 (select timeout) and read in non-blocking mode. DEVRANDOM now
4814 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4815 (previously it was just the string "/dev/urandom"), so on typical
4816 platforms the 10 ms delay will never occur.
4817 Also separate out the Unix variant to its own file, rand_unix.c.
4818 For VMS, there's a currently-empty rand_vms.c.
4821 *) Move OCSP client related routines to ocsp_cl.c. These
4822 provide utility functions which an application needing
4823 to issue a request to an OCSP responder and analyse the
4824 response will typically need: as opposed to those which an
4825 OCSP responder itself would need which will be added later.
4827 OCSP_request_sign() signs an OCSP request with an API similar
4828 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4829 response. OCSP_response_get1_basic() extracts basic response
4830 from response. OCSP_resp_find_status(): finds and extracts status
4831 information from an OCSP_CERTID structure (which will be created
4832 when the request structure is built). These are built from lower
4833 level functions which work on OCSP_SINGLERESP structures but
4834 wont normally be used unless the application wishes to examine
4835 extensions in the OCSP response for example.
4837 Replace nonce routines with a pair of functions.
4838 OCSP_request_add1_nonce() adds a nonce value and optionally
4839 generates a random value. OCSP_check_nonce() checks the
4840 validity of the nonce in an OCSP response.
4843 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4844 This doesn't copy the supplied OCSP_CERTID and avoids the
4845 need to free up the newly created id. Change return type
4846 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4847 This can then be used to add extensions to the request.
4848 Deleted OCSP_request_new(), since most of its functionality
4849 is now in OCSP_REQUEST_new() (and the case insensitive name
4850 clash) apart from the ability to set the request name which
4851 will be added elsewhere.
4854 *) Update OCSP API. Remove obsolete extensions argument from
4855 various functions. Extensions are now handled using the new
4856 OCSP extension code. New simple OCSP HTTP function which
4857 can be used to send requests and parse the response.
4860 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4861 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4862 uses the special reorder version of SET OF to sort the attributes
4863 and reorder them to match the encoded order. This resolves a long
4864 standing problem: a verify on a PKCS7 structure just after signing
4865 it used to fail because the attribute order did not match the
4866 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4867 it uses the received order. This is necessary to tolerate some broken
4868 software that does not order SET OF. This is handled by encoding
4869 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4870 to produce the required SET OF.
4873 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4874 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4875 files to get correct declarations of the ASN.1 item variables.
4878 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4879 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4880 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4881 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4882 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4883 ASN1_ITEM and no wrapper functions.
4886 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4887 replace the old function pointer based I/O routines. Change most of
4888 the *_d2i_bio() and *_d2i_fp() functions to use these.
4891 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4892 lines, recognice more "algorithms" that can be deselected, and make
4893 it complain about algorithm deselection that isn't recognised.
4896 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4897 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4898 to use new functions. Add NO_ASN1_OLD which can be set to remove
4899 some old style ASN1 functions: this can be used to determine if old
4900 code will still work when these eventually go away.
4903 *) New extension functions for OCSP structures, these follow the
4904 same conventions as certificates and CRLs.
4907 *) New function X509V3_add1_i2d(). This automatically encodes and
4908 adds an extension. Its behaviour can be customised with various
4909 flags to append, replace or delete. Various wrappers added for
4910 certifcates and CRLs.
4913 *) Fix to avoid calling the underlying ASN1 print routine when
4914 an extension cannot be parsed. Correct a typo in the
4915 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4918 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4919 entries for variables.
4922 *) Add functionality to apps/openssl.c for detecting locking
4923 problems: As the program is single-threaded, all we have
4924 to do is register a locking callback using an array for
4925 storing which locks are currently held by the program.
4928 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4929 SSL_get_ex_data_X509_STORE_idx(), which is used in
4930 ssl_verify_cert_chain() and thus can be called at any time
4931 during TLS/SSL handshakes so that thread-safety is essential.
4932 Unfortunately, the ex_data design is not at all suited
4933 for multi-threaded use, so it probably should be abolished.
4936 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4937 [Broadcom, tweaked and integrated by Geoff Thorpe]
4939 *) Move common extension printing code to new function
4940 X509V3_print_extensions(). Reorganise OCSP print routines and
4941 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4944 *) New function X509_signature_print() to remove duplication in some
4948 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4949 set (this was treated exactly the same as SET OF previously). This
4950 is used to reorder the STACK representing the structure to match the
4951 encoding. This will be used to get round a problem where a PKCS7
4952 structure which was signed could not be verified because the STACK
4953 order did not reflect the encoded order.
4956 *) Reimplement the OCSP ASN1 module using the new code.
4959 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4960 for its ASN1 operations. The old style function pointers still exist
4961 for now but they will eventually go away.
4964 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4965 completely replaces the old ASN1 functionality with a table driven
4966 encoder and decoder which interprets an ASN1_ITEM structure describing
4967 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4968 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4969 has also been converted to the new form.
4972 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4973 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4974 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4975 for negative moduli.
4978 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4979 of not touching the result's sign bit.
4982 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4986 *) Changed the LHASH code to use prototypes for callbacks, and created
4987 macros to declare and implement thin (optionally static) functions
4988 that provide type-safety and avoid function pointer casting for the
4989 type-specific callbacks.
4992 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4994 [Veers Staats <staatsvr@asc.hpc.mil>,
4995 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4997 *) Reformat the FAQ so the different questions and answers can be divided
4998 in sections depending on the subject.
5001 *) Have the zlib compression code load ZLIB.DLL dynamically under
5005 *) New function BN_mod_sqrt for computing square roots modulo a prime
5006 (using the probabilistic Tonelli-Shanks algorithm unless
5007 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5008 be handled deterministically).
5009 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5011 *) Make BN_mod_inverse faster by explicitly handling small quotients
5012 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5013 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5016 *) New function BN_kronecker.
5019 *) Fix BN_gcd so that it works on negative inputs; the result is
5020 positive unless both parameters are zero.
5021 Previously something reasonably close to an infinite loop was
5022 possible because numbers could be growing instead of shrinking
5023 in the implementation of Euclid's algorithm.
5026 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5027 sign of the number in question.
5029 Fix BN_is_word(a,w) to work correctly for w == 0.
5031 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5032 because its test if the absolute value of 'a' equals 'w'.
5033 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5034 it exists mostly for use in the implementations of BN_is_zero(),
5035 BN_is_one(), and BN_is_word().
5038 *) New function BN_swap.
5041 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5042 the exponentiation functions are more likely to produce reasonable
5043 results on negative inputs.
5046 *) Change BN_mod_mul so that the result is always non-negative.
5047 Previously, it could be negative if one of the factors was negative;
5048 I don't think anyone really wanted that behaviour.
5051 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5052 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5053 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5054 and add new functions:
5063 BN_mod_lshift1_quick
5067 These functions always generate non-negative results.
5069 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5070 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5072 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5073 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5074 be reduced modulo m.
5075 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5078 The following entry accidentily appeared in the CHANGES file
5079 distributed with OpenSSL 0.9.7. The modifications described in
5080 it do *not* apply to OpenSSL 0.9.7.
5082 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5083 was actually never needed) and in BN_mul(). The removal in BN_mul()
5084 required a small change in bn_mul_part_recursive() and the addition
5085 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5086 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5087 bn_sub_words() and bn_add_words() except they take arrays with
5092 *) In 'openssl passwd', verify passwords read from the terminal
5093 unless the '-salt' option is used (which usually means that
5094 verification would just waste user's time since the resulting
5095 hash is going to be compared with some given password hash)
5096 or the new '-noverify' option is used.
5098 This is an incompatible change, but it does not affect
5099 non-interactive use of 'openssl passwd' (passwords on the command
5100 line, '-stdin' option, '-in ...' option) and thus should not
5104 *) Remove all references to RSAref, since there's no more need for it.
5107 *) Make DSO load along a path given through an environment variable
5108 (SHLIB_PATH) with shl_load().
5111 *) Constify the ENGINE code as a result of BIGNUM constification.
5112 Also constify the RSA code and most things related to it. In a
5113 few places, most notable in the depth of the ASN.1 code, ugly
5114 casts back to non-const were required (to be solved at a later
5118 *) Make it so the openssl application has all engines loaded by default.
5121 *) Constify the BIGNUM routines a little more.
5124 *) Add the following functions:
5126 ENGINE_load_cswift()
5128 ENGINE_load_atalla()
5130 ENGINE_load_builtin_engines()
5132 That way, an application can itself choose if external engines that
5133 are built-in in OpenSSL shall ever be used or not. The benefit is
5134 that applications won't have to be linked with libdl or other dso
5135 libraries unless it's really needed.
5137 Changed 'openssl engine' to load all engines on demand.
5138 Changed the engine header files to avoid the duplication of some
5139 declarations (they differed!).
5142 *) 'openssl engine' can now list capabilities.
5145 *) Better error reporting in 'openssl engine'.
5148 *) Never call load_dh_param(NULL) in s_server.
5151 *) Add engine application. It can currently list engines by name and
5152 identity, and test if they are actually available.
5155 *) Improve RPM specification file by forcing symbolic linking and making
5156 sure the installed documentation is also owned by root.root.
5157 [Damien Miller <djm@mindrot.org>]
5159 *) Give the OpenSSL applications more possibilities to make use of
5160 keys (public as well as private) handled by engines.
5163 *) Add OCSP code that comes from CertCo.
5166 *) Add VMS support for the Rijndael code.
5169 *) Added untested support for Nuron crypto accelerator.
5172 *) Add support for external cryptographic devices. This code was
5173 previously distributed separately as the "engine" branch.
5174 [Geoff Thorpe, Richard Levitte]
5176 *) Rework the filename-translation in the DSO code. It is now possible to
5177 have far greater control over how a "name" is turned into a filename
5178 depending on the operating environment and any oddities about the
5179 different shared library filenames on each system.
5182 *) Support threads on FreeBSD-elf in Configure.
5185 *) Fix for SHA1 assembly problem with MASM: it produces
5186 warnings about corrupt line number information when assembling
5187 with debugging information. This is caused by the overlapping
5189 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5192 NCONF_get_number() has no error checking at all. As a replacement,
5193 NCONF_get_number_e() is defined (_e for "error checking") and is
5194 promoted strongly. The old NCONF_get_number is kept around for
5195 binary backward compatibility.
5196 Make it possible for methods to load from something other than a BIO,
5197 by providing a function pointer that is given a name instead of a BIO.
5198 For example, this could be used to load configuration data from an
5202 *) Fix for non blocking accept BIOs. Added new I/O special reason
5203 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5204 with non blocking I/O was not possible because no retry code was
5205 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5209 *) Added the beginnings of Rijndael support.
5212 *) Fix for bug in DirectoryString mask setting. Add support for
5213 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5214 to allow certificate printing to more controllable, additional
5215 'certopt' option to 'x509' to allow new printing options to be
5219 *) Clean old EAY MD5 hack from e_os.h.
5222 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5224 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5225 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5226 [Joe Orton, Steve Henson]
5228 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5230 *) Fix additional bug revealed by the NISCC test suite:
5232 Stop bug triggering large recursion when presented with
5233 certain ASN.1 tags (CVE-2003-0851)
5236 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5238 *) Fix various bugs revealed by running the NISCC test suite:
5240 Stop out of bounds reads in the ASN1 code when presented with
5241 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5243 If verify callback ignores invalid public key errors don't try to check
5244 certificate signature with the NULL public key.
5248 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5249 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5253 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5254 extra data after the compression methods not only for TLS 1.0
5255 but also for SSL 3.0 (as required by the specification).
5256 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5258 *) Change X509_certificate_type() to mark the key as exported/exportable
5259 when it's 512 *bits* long, not 512 bytes.
5262 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5264 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5265 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5266 a protocol version number mismatch like a decryption error
5267 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5270 *) Turn on RSA blinding by default in the default implementation
5271 to avoid a timing attack. Applications that don't want it can call
5272 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5273 They would be ill-advised to do so in most cases.
5274 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5276 *) Change RSA blinding code so that it works when the PRNG is not
5277 seeded (in this case, the secret RSA exponent is abused as
5278 an unpredictable seed -- if it is not unpredictable, there
5279 is no point in blinding anyway). Make RSA blinding thread-safe
5280 by remembering the creator's thread ID in rsa->blinding and
5281 having all other threads use local one-time blinding factors
5282 (this requires more computation than sharing rsa->blinding, but
5283 avoids excessive locking; and if an RSA object is not shared
5284 between threads, blinding will still be very fast).
5287 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5289 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5290 via timing by performing a MAC computation even if incorrrect
5291 block cipher padding has been found. This is a countermeasure
5292 against active attacks where the attacker has to distinguish
5293 between bad padding and a MAC verification error. (CVE-2003-0078)
5295 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5296 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5297 Martin Vuagnoux (EPFL, Ilion)]
5299 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5301 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5302 memory from it's contents. This is done with a counter that will
5303 place alternating values in each byte. This can be used to solve
5304 two issues: 1) the removal of calls to memset() by highly optimizing
5305 compilers, and 2) cleansing with other values than 0, since those can
5306 be read through on certain media, for example a swap space on disk.
5309 *) Bugfix: client side session caching did not work with external caching,
5310 because the session->cipher setting was not restored when reloading
5311 from the external cache. This problem was masked, when
5312 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5313 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5316 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5317 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5318 [Zeev Lieber <zeev-l@yahoo.com>]
5320 *) Undo an undocumented change introduced in 0.9.6e which caused
5321 repeated calls to OpenSSL_add_all_ciphers() and
5322 OpenSSL_add_all_digests() to be ignored, even after calling
5326 *) Change the default configuration reader to deal with last line not
5327 being properly terminated.
5330 *) Change X509_NAME_cmp() so it applies the special rules on handling
5331 DN values that are of type PrintableString, as well as RDNs of type
5332 emailAddress where the value has the type ia5String.
5333 [stefank@valicert.com via Richard Levitte]
5335 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5336 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5337 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5338 the bitwise-OR of the two for use by the majority of applications
5339 wanting this behaviour, and update the docs. The documented
5340 behaviour and actual behaviour were inconsistent and had been
5341 changing anyway, so this is more a bug-fix than a behavioural
5343 [Geoff Thorpe, diagnosed by Nadav Har'El]
5345 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5346 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5349 *) Fix initialization code race conditions in
5350 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5351 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5352 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5353 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5354 ssl2_get_cipher_by_char(),
5355 ssl3_get_cipher_by_char().
5356 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5358 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5359 the cached sessions are flushed, as the remove_cb() might use ex_data
5360 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5361 (see [openssl.org #212]).
5362 [Geoff Thorpe, Lutz Jaenicke]
5364 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5365 length, instead of the encoding length to d2i_ASN1_OBJECT.
5368 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5370 *) [In 0.9.6g-engine release:]
5371 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5372 [Lynn Gazis <lgazis@rainbow.com>]
5374 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5376 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5377 and get fix the header length calculation.
5378 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5379 Alon Kantor <alonk@checkpoint.com> (and others),
5382 *) Use proper error handling instead of 'assertions' in buffer
5383 overflow checks added in 0.9.6e. This prevents DoS (the
5384 assertions could call abort()).
5385 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5387 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5389 *) Add various sanity checks to asn1_get_length() to reject
5390 the ASN1 length bytes if they exceed sizeof(long), will appear
5391 negative or the content length exceeds the length of the
5393 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5395 *) Fix cipher selection routines: ciphers without encryption had no flags
5396 for the cipher strength set and where therefore not handled correctly
5397 by the selection routines (PR #130).
5400 *) Fix EVP_dsa_sha macro.
5404 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5405 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5406 that was added in OpenSSL 0.9.6d.
5408 As the countermeasure turned out to be incompatible with some
5409 broken SSL implementations, the new option is part of SSL_OP_ALL.
5410 SSL_OP_ALL is usually employed when compatibility with weird SSL
5411 implementations is desired (e.g. '-bugs' option to 's_client' and
5412 's_server'), so the new option is automatically set in many
5416 *) Changes in security patch:
5418 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5419 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5420 Air Force Materiel Command, USAF, under agreement number
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
5426 supplied buffer. (CVE-2002-0659)
5427 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5429 *) Assertions for various potential buffer overflows, not known to
5431 [Ben Laurie (CHATS)]
5433 *) Various temporary buffers to hold ASCII versions of integers were
5434 too small for 64 bit platforms. (CVE-2002-0655)
5435 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5437 *) Remote buffer overflow in SSL3 protocol - an attacker could
5438 supply an oversized session ID to a client. (CVE-2002-0656)
5439 [Ben Laurie (CHATS)]
5441 *) Remote buffer overflow in SSL2 protocol - an attacker could
5442 supply an oversized client master key. (CVE-2002-0656)
5443 [Ben Laurie (CHATS)]
5445 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5447 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5448 encoded as NULL) with id-dsa-with-sha1.
5449 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5451 *) Check various X509_...() return values in apps/req.c.
5452 [Nils Larsch <nla@trustcenter.de>]
5454 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5455 an end-of-file condition would erronously be flagged, when the CRLF
5456 was just at the end of a processed block. The bug was discovered when
5457 processing data through a buffering memory BIO handing the data to a
5458 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5459 <ptsekov@syntrex.com> and Nedelcho Stanev.
5462 *) Implement a countermeasure against a vulnerability recently found
5463 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5464 before application data chunks to avoid the use of known IVs
5465 with data potentially chosen by the attacker.
5468 *) Fix length checks in ssl3_get_client_hello().
5471 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5472 to prevent ssl3_read_internal() from incorrectly assuming that
5473 ssl3_read_bytes() found application data while handshake
5474 processing was enabled when in fact s->s3->in_read_app_data was
5475 merely automatically cleared during the initial handshake.
5476 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5478 *) Fix object definitions for Private and Enterprise: they were not
5479 recognized in their shortname (=lowercase) representation. Extend
5480 obj_dat.pl to issue an error when using undefined keywords instead
5481 of silently ignoring the problem (Svenning Sorensen
5482 <sss@sss.dnsalias.net>).
5485 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5486 generators, i.e. generators other than 2 and 5. (Previously, the
5487 code did not properly initialise the 'add' and 'rem' values to
5488 BN_generate_prime().)
5490 In the new general case, we do not insist that 'generator' is
5491 actually a primitive root: This requirement is rather pointless;
5492 a generator of the order-q subgroup is just as good, if not
5496 *) Map new X509 verification errors to alerts. Discovered and submitted by
5497 Tom Wu <tom@arcot.com>.
5500 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5501 returning non-zero before the data has been completely received
5502 when using non-blocking I/O.
5503 [Bodo Moeller; problem pointed out by John Hughes]
5505 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5506 [Ben Laurie, Lutz Jaenicke]
5508 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5509 Yoram Zahavi <YoramZ@gilian.com>).
5512 *) Add information about CygWin 1.3 and on, and preserve proper
5513 configuration for the versions before that.
5514 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5516 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5517 check whether we deal with a copy of a session and do not delete from
5518 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5519 <izhar@checkpoint.com>.
5522 *) Do not store session data into the internal session cache, if it
5523 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5524 flag is set). Proposed by Aslam <aslam@funk.com>.
5527 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5531 *) [In 0.9.6d-engine release:]
5532 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5533 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5535 *) Add the configuration target linux-s390x.
5536 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5538 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5539 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5540 variable as an indication that a ClientHello message has been
5541 received. As the flag value will be lost between multiple
5542 invocations of ssl3_accept when using non-blocking I/O, the
5543 function may not be aware that a handshake has actually taken
5544 place, thus preventing a new session from being added to the
5547 To avoid this problem, we now set s->new_session to 2 instead of
5548 using a local variable.
5549 [Lutz Jaenicke, Bodo Moeller]
5551 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5552 if the SSL_R_LENGTH_MISMATCH error is detected.
5553 [Geoff Thorpe, Bodo Moeller]
5555 *) New 'shared_ldflag' column in Configure platform table.
5558 *) Fix EVP_CIPHER_mode macro.
5559 ["Dan S. Camper" <dan@bti.net>]
5561 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5562 type, we must throw them away by setting rr->length to 0.
5563 [D P Chang <dpc@qualys.com>]
5565 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5567 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5568 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5569 worked incorrectly for those cases where range = 10..._2 and
5570 3*range is two bits longer than range.)
5573 *) Only add signing time to PKCS7 structures if it is not already
5577 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5578 OBJ_ld_ce should be OBJ_id_ce.
5579 Also some ip-pda OIDs in crypto/objects/objects.txt were
5580 incorrect (cf. RFC 3039).
5581 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5583 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5584 returns early because it has nothing to do.
5585 [Andy Schneider <andy.schneider@bjss.co.uk>]
5587 *) [In 0.9.6c-engine release:]
5588 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5589 [Andy Schneider <andy.schneider@bjss.co.uk>]
5591 *) [In 0.9.6c-engine release:]
5592 Add support for Cryptographic Appliance's keyserver technology.
5593 (Use engine 'keyclient')
5594 [Cryptographic Appliances and Geoff Thorpe]
5596 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5597 is called via tools/c89.sh because arguments have to be
5598 rearranged (all '-L' options must appear before the first object
5600 [Richard Shapiro <rshapiro@abinitio.com>]
5602 *) [In 0.9.6c-engine release:]
5603 Add support for Broadcom crypto accelerator cards, backported
5605 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5607 *) [In 0.9.6c-engine release:]
5608 Add support for SureWare crypto accelerator cards from
5609 Baltimore Technologies. (Use engine 'sureware')
5610 [Baltimore Technologies and Mark Cox]
5612 *) [In 0.9.6c-engine release:]
5613 Add support for crypto accelerator cards from Accelerated
5614 Encryption Processing, www.aep.ie. (Use engine 'aep')
5615 [AEP Inc. and Mark Cox]
5617 *) Add a configuration entry for gcc on UnixWare.
5618 [Gary Benson <gbenson@redhat.com>]
5620 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5621 messages are stored in a single piece (fixed-length part and
5622 variable-length part combined) and fix various bugs found on the way.
5625 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5626 instead. BIO_gethostbyname() does not know what timeouts are
5627 appropriate, so entries would stay in cache even when they have
5629 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5631 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5632 faced with a pathologically small ClientHello fragment that does
5633 not contain client_version: Instead of aborting with an error,
5634 simply choose the highest available protocol version (i.e.,
5635 TLS 1.0 unless it is disabled). In practice, ClientHello
5636 messages are never sent like this, but this change gives us
5637 strictly correct behaviour at least for TLS.
5640 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5641 never resets s->method to s->ctx->method when called from within
5642 one of the SSL handshake functions.
5643 [Bodo Moeller; problem pointed out by Niko Baric]
5645 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5646 (sent using the client's version number) if client_version is
5647 smaller than the protocol version in use. Also change
5648 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5649 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5650 the client will at least see that alert.
5653 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5657 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5658 client receives HelloRequest while in a handshake.
5659 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5661 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5662 should end in 'break', not 'goto end' which circuments various
5663 cleanups done in state SSL_ST_OK. But session related stuff
5664 must be disabled for SSL_ST_OK in the case that we just sent a
5667 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5668 before just sending a HelloRequest.
5669 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5671 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5672 reveal whether illegal block cipher padding was found or a MAC
5673 verification error occured. (Neither SSLerr() codes nor alerts
5674 are directly visible to potential attackers, but the information
5675 may leak via logfiles.)
5677 Similar changes are not required for the SSL 2.0 implementation
5678 because the number of padding bytes is sent in clear for SSL 2.0,
5679 and the extra bytes are just ignored. However ssl/s2_pkt.c
5680 failed to verify that the purported number of padding bytes is in
5684 *) Add OpenUNIX-8 support including shared libraries
5685 (Boyd Lynn Gerber <gerberb@zenez.com>).
5688 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5689 'wristwatch attack' using huge encoding parameters (cf.
5690 James H. Manger's CRYPTO 2001 paper). Note that the
5691 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5692 encoding parameters and hence was not vulnerable.
5695 *) BN_sqr() bug fix.
5696 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5698 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5699 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5700 followed by modular reduction.
5701 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5703 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5704 equivalent based on BN_pseudo_rand() instead of BN_rand().
5707 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5708 This function was broken, as the check for a new client hello message
5709 to handle SGC did not allow these large messages.
5710 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5713 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5716 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5717 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5720 *) Rework the configuration and shared library support for Tru64 Unix.
5721 The configuration part makes use of modern compiler features and
5722 still retains old compiler behavior for those that run older versions
5723 of the OS. The shared library support part includes a variant that
5724 uses the RPATH feature, and is available through the special
5725 configuration target "alpha-cc-rpath", which will never be selected
5727 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5729 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5730 with the same message size as in ssl3_get_certificate_request().
5731 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5732 messages might inadvertently be reject as too long.
5733 [Petr Lampa <lampa@fee.vutbr.cz>]
5735 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5738 *) Modified SSL library such that the verify_callback that has been set
5739 specificly for an SSL object with SSL_set_verify() is actually being
5740 used. Before the change, a verify_callback set with this function was
5741 ignored and the verify_callback() set in the SSL_CTX at the time of
5742 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5743 to allow the necessary settings.
5746 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5747 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5748 done automatically (in contradiction to the requirements of the C
5749 standard). This made problems when used from OpenSSH.
5752 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5753 dh->length and always used
5755 BN_rand_range(priv_key, dh->p).
5757 BN_rand_range() is not necessary for Diffie-Hellman, and this
5758 specific range makes Diffie-Hellman unnecessarily inefficient if
5759 dh->length (recommended exponent length) is much smaller than the
5760 length of dh->p. We could use BN_rand_range() if the order of
5761 the subgroup was stored in the DH structure, but we only have
5766 BN_rand(priv_key, l, ...)
5768 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5774 RSA_eay_public_encrypt
5775 RSA_eay_private_decrypt
5776 RSA_eay_private_encrypt (signing)
5777 RSA_eay_public_decrypt (signature verification)
5779 (default implementations for RSA_public_encrypt,
5780 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5781 always reject numbers >= n.
5784 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5785 to synchronize access to 'locking_thread'. This is necessary on
5786 systems where access to 'locking_thread' (an 'unsigned long'
5787 variable) is not atomic.
5790 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5791 *before* setting the 'crypto_lock_rand' flag. The previous code had
5792 a race condition if 0 is a valid thread ID.
5793 [Travis Vitek <vitek@roguewave.com>]
5795 *) Add support for shared libraries under Irix.
5796 [Albert Chin-A-Young <china@thewrittenword.com>]
5798 *) Add configuration option to build on Linux on both big-endian and
5800 [Ralf Baechle <ralf@uni-koblenz.de>]
5802 *) Add the possibility to create shared libraries on HP-UX.
5805 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5807 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5808 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5809 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5810 PRNG state recovery was possible based on the output of
5811 one PRNG request appropriately sized to gain knowledge on
5812 'md' followed by enough consecutive 1-byte PRNG requests
5813 to traverse all of 'state'.
5815 1. When updating 'md_local' (the current thread's copy of 'md')
5816 during PRNG output generation, hash all of the previous
5817 'md_local' value, not just the half used for PRNG output.
5819 2. Make the number of bytes from 'state' included into the hash
5820 independent from the number of PRNG bytes requested.
5822 The first measure alone would be sufficient to avoid
5823 Markku-Juhani's attack. (Actually it had never occurred
5824 to me that the half of 'md_local' used for chaining was the
5825 half from which PRNG output bytes were taken -- I had always
5826 assumed that the secret half would be used.) The second
5827 measure makes sure that additional data from 'state' is never
5828 mixed into 'md_local' in small portions; this heuristically
5829 further strengthens the PRNG.
5832 *) Fix crypto/bn/asm/mips3.s.
5835 *) When only the key is given to "enc", the IV is undefined. Print out
5836 an error message in this case.
5839 *) Handle special case when X509_NAME is empty in X509 printing routines.
5842 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5843 positive and less than q.
5846 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5847 used: it isn't thread safe and the add_lock_callback should handle
5849 [Paul Rose <Paul.Rose@bridge.com>]
5851 *) Verify that incoming data obeys the block size in
5852 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5856 [Ulf Möller, Bodo Möller]
5858 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5859 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5860 when fixing the server behaviour for backwards-compatible 'client
5861 hello' messages. (Note that the attack is impractical against
5862 SSL 3.0 and TLS 1.0 anyway because length and version checking
5863 means that the probability of guessing a valid ciphertext is
5864 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5867 Before 0.9.5, the countermeasure (hide the error by generating a
5868 random 'decryption result') did not work properly because
5869 ERR_clear_error() was missing, meaning that SSL_get_error() would
5870 detect the supposedly ignored error.
5872 Both problems are now fixed.
5875 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5876 (previously it was 1024).
5879 *) Fix for compatibility mode trust settings: ignore trust settings
5880 unless some valid trust or reject settings are present.
5883 *) Fix for blowfish EVP: its a variable length cipher.
5886 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5887 parameters in DSA public key structures and return an error in the
5888 DSA routines if parameters are absent.
5891 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5892 in the current directory if neither $RANDFILE nor $HOME was set.
5893 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5894 caused some confusion to Windows users who haven't defined $HOME.
5895 Thus RAND_file_name() is changed again: e_os.h can define a
5896 DEFAULT_HOME, which will be used if $HOME is not set.
5897 For Windows, we use "C:"; on other platforms, we still require
5898 environment variables.
5900 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5901 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5902 having multiple threads call RAND_poll() concurrently.
5905 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5906 combination of a flag and a thread ID variable.
5907 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5908 flag), *other* threads can enter ssleay_add_bytes without obeying
5909 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5910 that they do not hold after the first thread unsets add_do_not_lock).
5913 *) Change bctest again: '-x' expressions are not available in all
5917 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5919 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5920 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5922 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5923 the default extension for executables, if any. Also, make the perl
5924 scripts that use symlink() to test if it really exists and use "cp"
5925 if it doesn't. All this made OpenSSL compilable and installable in
5929 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5930 If SEQUENCE is length is indefinite just set c->slen to the total
5931 amount of data available.
5932 [Steve Henson, reported by shige@FreeBSD.org]
5933 [This change does not apply to 0.9.7.]
5935 *) Change bctest to avoid here-documents inside command substitution
5936 (workaround for FreeBSD /bin/sh bug).
5937 For compatibility with Ultrix, avoid shell functions (introduced
5938 in the bctest version that searches along $PATH).
5941 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5942 with des_encrypt() defined on some operating systems, like Solaris
5946 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5947 On the Importance of Eliminating Errors in Cryptographic
5948 Computations, J. Cryptology 14 (2001) 2, 101-119,
5949 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5952 *) MIPS assembler BIGNUM division bug fix.
5955 *) Disabled incorrect Alpha assembler code.
5958 *) Fix PKCS#7 decode routines so they correctly update the length
5959 after reading an EOC for the EXPLICIT tag.
5961 [This change does not apply to 0.9.7.]
5963 *) Fix bug in PKCS#12 key generation routines. This was triggered
5964 if a 3DES key was generated with a 0 initial byte. Include
5965 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5966 (but broken) behaviour.
5969 *) Enhance bctest to search for a working bc along $PATH and print
5971 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5973 *) Fix memory leaks in err.c: free err_data string if necessary;
5974 don't write to the wrong index in ERR_set_error_data.
5977 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5981 *) Replace rdtsc with _emit statements for VC++ version 5.
5982 [Jeremy Cooper <jeremy@baymoo.org>]
5984 *) Make it possible to reuse SSLv2 sessions.
5987 *) In copy_email() check for >= 0 as a return value for
5988 X509_NAME_get_index_by_NID() since 0 is a valid index.
5989 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5991 *) Avoid coredump with unsupported or invalid public keys by checking if
5992 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5993 PKCS7_verify() fails with non detached data.
5996 *) Don't use getenv in library functions when run as setuid/setgid.
5997 New function OPENSSL_issetugid().
6000 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6001 due to incorrect handling of multi-threading:
6003 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6005 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6007 3. Count how many times MemCheck_off() has been called so that
6008 nested use can be treated correctly. This also avoids
6009 inband-signalling in the previous code (which relied on the
6010 assumption that thread ID 0 is impossible).
6013 *) Add "-rand" option also to s_client and s_server.
6016 *) Fix CPU detection on Irix 6.x.
6017 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6018 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6020 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6023 [This change does not apply to 0.9.7.]
6025 *) Use the cached encoding of an X509_NAME structure rather than
6026 copying it. This is apparently the reason for the libsafe "errors"
6027 but the code is actually correct.
6030 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6031 Bleichenbacher's DSA attack.
6032 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6033 to be set and top=0 forces the highest bit to be set; top=-1 is new
6034 and leaves the highest bit random.
6035 [Ulf Moeller, Bodo Moeller]
6037 *) In the NCONF_...-based implementations for CONF_... queries
6038 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6039 a temporary CONF structure with the data component set to NULL
6040 (which gives segmentation faults in lh_retrieve).
6041 Instead, use NULL for the CONF pointer in CONF_get_string and
6042 CONF_get_number (which may use environment variables) and directly
6043 return NULL from CONF_get_section.
6046 *) Fix potential buffer overrun for EBCDIC.
6049 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6050 keyUsage if basicConstraints absent for a CA.
6053 *) Make SMIME_write_PKCS7() write mail header values with a format that
6054 is more generally accepted (no spaces before the semicolon), since
6055 some programs can't parse those values properly otherwise. Also make
6056 sure BIO's that break lines after each write do not create invalid
6060 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6061 macros previously used would not encode an empty SEQUENCE OF
6062 and break the signature.
6064 [This change does not apply to 0.9.7.]
6066 *) Zero the premaster secret after deriving the master secret in
6070 *) Add some EVP_add_digest_alias registrations (as found in
6071 OpenSSL_add_all_digests()) to SSL_library_init()
6072 aka OpenSSL_add_ssl_algorithms(). This provides improved
6073 compatibility with peers using X.509 certificates
6074 with unconventional AlgorithmIdentifier OIDs.
6077 *) Fix for Irix with NO_ASM.
6078 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6080 *) ./config script fixes.
6081 [Ulf Moeller, Richard Levitte]
6083 *) Fix 'openssl passwd -1'.
6086 *) Change PKCS12_key_gen_asc() so it can cope with non null
6087 terminated strings whose length is passed in the passlen
6088 parameter, for example from PEM callbacks. This was done
6089 by adding an extra length parameter to asc2uni().
6090 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6092 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6093 call failed, free the DSA structure.
6096 *) Fix to uni2asc() to cope with zero length Unicode strings.
6097 These are present in some PKCS#12 files.
6100 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6101 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6102 when writing a 32767 byte record.
6103 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6105 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6106 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6108 (RSA objects have a reference count access to which is protected
6109 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6110 so they are meant to be shared between threads.)
6111 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6112 "Reddie, Steven" <Steven.Reddie@ca.com>]
6114 *) Fix a deadlock in CRYPTO_mem_leaks().
6117 *) Use better test patterns in bntest.
6120 *) rand_win.c fix for Borland C.
6123 *) BN_rshift bugfix for n == 0.
6126 *) Add a 'bctest' script that checks for some known 'bc' bugs
6127 so that 'make test' does not abort just because 'bc' is broken.
6130 *) Store verify_result within SSL_SESSION also for client side to
6131 avoid potential security hole. (Re-used sessions on the client side
6132 always resulted in verify_result==X509_V_OK, not using the original
6133 result of the server certificate verification.)
6136 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6137 SSL3_RT_APPLICATION_DATA, return 0.
6138 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6142 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6143 releases, have been re-implemented by renaming the previous
6144 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6145 and ssl3_read_internal, respectively, and adding 'peek' parameters
6146 to them. The new ssl[23]_{read,peek} functions are calls to
6147 ssl[23]_read_internal with the 'peek' flag set appropriately.
6148 A 'peek' parameter has also been added to ssl3_read_bytes, which
6149 does the actual work for ssl3_read_internal.
6152 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6153 the method-specific "init()" handler. Also clean up ex_data after
6154 calling the method-specific "finish()" handler. Previously, this was
6155 happening the other way round.
6158 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6159 The previous value, 12, was not always sufficient for BN_mod_exp().
6162 *) Make sure that shared libraries get the internal name engine with
6163 the full version number and not just 0. This should mark the
6164 shared libraries as not backward compatible. Of course, this should
6165 be changed again when we can guarantee backward binary compatibility.
6168 *) Fix typo in get_cert_by_subject() in by_dir.c
6169 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6171 *) Rework the system to generate shared libraries:
6173 - Make note of the expected extension for the shared libraries and
6174 if there is a need for symbolic links from for example libcrypto.so.0
6175 to libcrypto.so.0.9.7. There is extended info in Configure for
6178 - Make as few rebuilds of the shared libraries as possible.
6180 - Still avoid linking the OpenSSL programs with the shared libraries.
6182 - When installing, install the shared libraries separately from the
6186 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6188 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6189 and not in SSL_clear because the latter is also used by the
6190 accept/connect functions; previously, the settings made by
6191 SSL_set_read_ahead would be lost during the handshake.
6192 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6194 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6195 Previously, it would create entries for disableed algorithms no
6199 *) Added several new manual pages for SSL_* function.
6202 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6204 *) In ssl23_get_client_hello, generate an error message when faced
6205 with an initial SSL 3.0/TLS record that is too small to contain the
6206 first two bytes of the ClientHello message, i.e. client_version.
6207 (Note that this is a pathologic case that probably has never happened
6208 in real life.) The previous approach was to use the version number
6209 from the record header as a substitute; but our protocol choice
6210 should not depend on that one because it is not authenticated
6211 by the Finished messages.
6214 *) More robust randomness gathering functions for Windows.
6215 [Jeffrey Altman <jaltman@columbia.edu>]
6217 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6218 not set then we don't setup the error code for issuer check errors
6219 to avoid possibly overwriting other errors which the callback does
6220 handle. If an application does set the flag then we assume it knows
6221 what it is doing and can handle the new informational codes
6225 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6226 a general "ANY" type, as such it should be able to decode anything
6227 including tagged types. However it didn't check the class so it would
6228 wrongly interpret tagged types in the same way as their universal
6229 counterpart and unknown types were just rejected. Changed so that the
6230 tagged and unknown types are handled in the same way as a SEQUENCE:
6231 that is the encoding is stored intact. There is also a new type
6232 "V_ASN1_OTHER" which is used when the class is not universal, in this
6233 case we have no idea what the actual type is so we just lump them all
6237 *) On VMS, stdout may very well lead to a file that is written to
6238 in a record-oriented fashion. That means that every write() will
6239 write a separate record, which will be read separately by the
6240 programs trying to read from it. This can be very confusing.
6242 The solution is to put a BIO filter in the way that will buffer
6243 text until a linefeed is reached, and then write everything a
6244 line at a time, so every record written will be an actual line,
6245 not chunks of lines and not (usually doesn't happen, but I've
6246 seen it once) several lines in one record. BIO_f_linebuffer() is
6249 Currently, it's a VMS-only method, because that's where it has
6250 been tested well enough.
6253 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6254 it can return incorrect results.
6255 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6256 but it was in 0.9.6-beta[12].)
6259 *) Disable the check for content being present when verifying detached
6260 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6261 include zero length content when signing messages.
6264 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6265 BIO_ctrl (for BIO pairs).
6268 *) Add DSO method for VMS.
6271 *) Bug fix: Montgomery multiplication could produce results with the
6275 *) Add RPM specification openssl.spec and modify it to build three
6276 packages. The default package contains applications, application
6277 documentation and run-time libraries. The devel package contains
6278 include files, static libraries and function documentation. The
6279 doc package contains the contents of the doc directory. The original
6280 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6283 *) Add a large number of documentation files for many SSL routines.
6284 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6286 *) Add a configuration entry for Sony News 4.
6287 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6289 *) Don't set the two most significant bits to one when generating a
6290 random number < q in the DSA library.
6293 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6294 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6295 the underlying transport is blocking) if a handshake took place.
6296 (The default behaviour is needed by applications such as s_client
6297 and s_server that use select() to determine when to use SSL_read;
6298 but for applications that know in advance when to expect data, it
6299 just makes things more complicated.)
6302 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6306 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6307 work better on such systems.
6308 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6310 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6311 Update PKCS12_parse() so it copies the friendlyName and the
6312 keyid to the certificates aux info.
6315 *) Fix bug in PKCS7_verify() which caused an infinite loop
6316 if there was more than one signature.
6317 [Sven Uszpelkat <su@celocom.de>]
6319 *) Major change in util/mkdef.pl to include extra information
6320 about each symbol, as well as presentig variables as well
6321 as functions. This change means that there's n more need
6322 to rebuild the .num files when some algorithms are excluded.
6325 *) Allow the verify time to be set by an application,
6326 rather than always using the current time.
6329 *) Phase 2 verify code reorganisation. The certificate
6330 verify code now looks up an issuer certificate by a
6331 number of criteria: subject name, authority key id
6332 and key usage. It also verifies self signed certificates
6333 by the same criteria. The main comparison function is
6334 X509_check_issued() which performs these checks.
6336 Lot of changes were necessary in order to support this
6337 without completely rewriting the lookup code.
6339 Authority and subject key identifier are now cached.
6341 The LHASH 'certs' is X509_STORE has now been replaced
6342 by a STACK_OF(X509_OBJECT). This is mainly because an
6343 LHASH can't store or retrieve multiple objects with
6344 the same hash value.
6346 As a result various functions (which were all internal
6347 use only) have changed to handle the new X509_STORE
6348 structure. This will break anything that messed round
6349 with X509_STORE internally.
6351 The functions X509_STORE_add_cert() now checks for an
6352 exact match, rather than just subject name.
6354 The X509_STORE API doesn't directly support the retrieval
6355 of multiple certificates matching a given criteria, however
6356 this can be worked round by performing a lookup first
6357 (which will fill the cache with candidate certificates)
6358 and then examining the cache for matches. This is probably
6359 the best we can do without throwing out X509_LOOKUP
6360 entirely (maybe later...).
6362 The X509_VERIFY_CTX structure has been enhanced considerably.
6364 All certificate lookup operations now go via a get_issuer()
6365 callback. Although this currently uses an X509_STORE it
6366 can be replaced by custom lookups. This is a simple way
6367 to bypass the X509_STORE hackery necessary to make this
6368 work and makes it possible to use more efficient techniques
6369 in future. A very simple version which uses a simple
6370 STACK for its trusted certificate store is also provided
6371 using X509_STORE_CTX_trusted_stack().
6373 The verify_cb() and verify() callbacks now have equivalents
6374 in the X509_STORE_CTX structure.
6376 X509_STORE_CTX also has a 'flags' field which can be used
6377 to customise the verify behaviour.
6380 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6381 excludes S/MIME capabilities.
6384 *) When a certificate request is read in keep a copy of the
6385 original encoding of the signed data and use it when outputing
6386 again. Signatures then use the original encoding rather than
6387 a decoded, encoded version which may cause problems if the
6388 request is improperly encoded.
6391 *) For consistency with other BIO_puts implementations, call
6392 buffer_write(b, ...) directly in buffer_puts instead of calling
6395 In BIO_puts, increment b->num_write as in BIO_write.
6396 [Peter.Sylvester@EdelWeb.fr]
6398 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6399 BN_zero, we may not return a BIGNUM with an array consisting of
6403 *) Avoid calling abort() from within the library when problems are
6404 detected, except if preprocessor symbols have been defined
6405 (such as REF_CHECK, BN_DEBUG etc.).
6408 *) New openssl application 'rsautl'. This utility can be
6409 used for low level RSA operations. DER public key
6410 BIO/fp routines also added.
6413 *) New Configure entry and patches for compiling on QNX 4.
6414 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6416 *) A demo state-machine implementation was sponsored by
6417 Nuron (http://www.nuron.com/) and is now available in
6418 demos/state_machine.
6421 *) New options added to the 'dgst' utility for signature
6422 generation and verification.
6425 *) Unrecognized PKCS#7 content types are now handled via a
6426 catch all ASN1_TYPE structure. This allows unsupported
6427 types to be stored as a "blob" and an application can
6428 encode and decode it manually.
6431 *) Fix various signed/unsigned issues to make a_strex.c
6433 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6435 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6436 length if passed a buffer. ASN1_INTEGER_to_BN failed
6437 if passed a NULL BN and its argument was negative.
6438 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6440 *) Modification to PKCS#7 encoding routines to output definite
6441 length encoding. Since currently the whole structures are in
6442 memory there's not real point in using indefinite length
6443 constructed encoding. However if OpenSSL is compiled with
6444 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6447 *) Added BIO_vprintf() and BIO_vsnprintf().
6450 *) Added more prefixes to parse for in the the strings written
6451 through a logging bio, to cover all the levels that are available
6452 through syslog. The prefixes are now:
6454 PANIC, EMERG, EMR => LOG_EMERG
6455 ALERT, ALR => LOG_ALERT
6456 CRIT, CRI => LOG_CRIT
6457 ERROR, ERR => LOG_ERR
6458 WARNING, WARN, WAR => LOG_WARNING
6459 NOTICE, NOTE, NOT => LOG_NOTICE
6460 INFO, INF => LOG_INFO
6461 DEBUG, DBG => LOG_DEBUG
6463 and as before, if none of those prefixes are present at the
6464 beginning of the string, LOG_ERR is chosen.
6466 On Win32, the LOG_* levels are mapped according to this:
6468 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6469 LOG_WARNING => EVENTLOG_WARNING_TYPE
6470 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6474 *) Made it possible to reconfigure with just the configuration
6475 argument "reconf" or "reconfigure". The command line arguments
6476 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6477 and are retrieved from there when reconfiguring.
6481 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6483 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6486 *) The obj_dat.pl script was messing up the sorting of object
6487 names. The reason was that it compared the quoted version
6488 of strings as a result "OCSP" > "OCSP Signing" because
6489 " > SPACE. Changed script to store unquoted versions of
6490 names and add quotes on output. It was also omitting some
6491 names from the lookup table if they were given a default
6492 value (that is if SN is missing it is given the same
6493 value as LN and vice versa), these are now added on the
6494 grounds that if an object has a name we should be able to
6495 look it up. Finally added warning output when duplicate
6496 short or long names are found.
6499 *) Changes needed for Tandem NSK.
6500 [Scott Uroff <scott@xypro.com>]
6502 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6503 RSA_padding_check_SSLv23(), special padding was never detected
6504 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6505 version rollback attacks was not effective.
6507 In s23_clnt.c, don't use special rollback-attack detection padding
6508 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6509 client; similarly, in s23_srvr.c, don't do the rollback check if
6510 SSL 2.0 is the only protocol enabled in the server.
6513 *) Make it possible to get hexdumps of unprintable data with 'openssl
6514 asn1parse'. By implication, the functions ASN1_parse_dump() and
6515 BIO_dump_indent() are added.
6518 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6519 these print out strings and name structures based on various
6520 flags including RFC2253 support and proper handling of
6521 multibyte characters. Added options to the 'x509' utility
6522 to allow the various flags to be set.
6525 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6526 Also change the functions X509_cmp_current_time() and
6527 X509_gmtime_adj() work with an ASN1_TIME structure,
6528 this will enable certificates using GeneralizedTime in validity
6529 dates to be checked.
6532 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6533 negative public key encodings) on by default,
6534 NO_NEG_PUBKEY_BUG can be set to disable it.
6537 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6538 content octets. An i2c_ASN1_OBJECT is unnecessary because
6539 the encoding can be trivially obtained from the structure.
6542 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6543 not read locks (CRYPTO_r_[un]lock).
6546 *) A first attempt at creating official support for shared
6547 libraries through configuration. I've kept it so the
6548 default is static libraries only, and the OpenSSL programs
6549 are always statically linked for now, but there are
6550 preparations for dynamic linking in place.
6551 This has been tested on Linux and Tru64.
6554 *) Randomness polling function for Win9x, as described in:
6555 Peter Gutmann, Software Generation of Practically Strong
6559 *) Fix so PRNG is seeded in req if using an already existing
6563 *) New options to smime application. -inform and -outform
6564 allow alternative formats for the S/MIME message including
6565 PEM and DER. The -content option allows the content to be
6566 specified separately. This should allow things like Netscape
6567 form signing output easier to verify.
6570 *) Fix the ASN1 encoding of tags using the 'long form'.
6573 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6574 STRING types. These convert content octets to and from the
6575 underlying type. The actual tag and length octets are
6576 already assumed to have been read in and checked. These
6577 are needed because all other string types have virtually
6578 identical handling apart from the tag. By having versions
6579 of the ASN1 functions that just operate on content octets
6580 IMPLICIT tagging can be handled properly. It also allows
6581 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6582 and ASN1_INTEGER are identical apart from the tag.
6585 *) Change the handling of OID objects as follows:
6587 - New object identifiers are inserted in objects.txt, following
6588 the syntax given in objects.README.
6589 - objects.pl is used to process obj_mac.num and create a new
6591 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6594 This is currently kind of a hack, and the perl code in objects.pl
6595 isn't very elegant, but it works as I intended. The simplest way
6596 to check that it worked correctly is to look in obj_dat.h and
6597 check the array nid_objs and make sure the objects haven't moved
6598 around (this is important!). Additions are OK, as well as
6599 consistent name changes.
6602 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6605 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6606 The given file adds to whatever has already been seeded into the
6607 random pool through the RANDFILE configuration file option or
6608 environment variable, or the default random state file.
6611 *) mkstack.pl now sorts each macro group into lexical order.
6612 Previously the output order depended on the order the files
6613 appeared in the directory, resulting in needless rewriting
6617 *) Patches to make OpenSSL compile under Win32 again. Mostly
6618 work arounds for the VC++ problem that it treats func() as
6619 func(void). Also stripped out the parts of mkdef.pl that
6620 added extra typesafe functions: these no longer exist.
6623 *) Reorganisation of the stack code. The macros are now all
6624 collected in safestack.h . Each macro is defined in terms of
6625 a "stack macro" of the form SKM_<name>(type, a, b). The
6626 DEBUG_SAFESTACK is now handled in terms of function casts,
6627 this has the advantage of retaining type safety without the
6628 use of additional functions. If DEBUG_SAFESTACK is not defined
6629 then the non typesafe macros are used instead. Also modified the
6630 mkstack.pl script to handle the new form. Needs testing to see
6631 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6632 the default if no major problems. Similar behaviour for ASN1_SET_OF
6633 and PKCS12_STACK_OF.
6636 *) When some versions of IIS use the 'NET' form of private key the
6637 key derivation algorithm is different. Normally MD5(password) is
6638 used as a 128 bit RC4 key. In the modified case
6639 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6640 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6641 as the old Netscape_RSA functions except they have an additional
6642 'sgckey' parameter which uses the modified algorithm. Also added
6643 an -sgckey command line option to the rsa utility. Thanks to
6644 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6645 algorithm to openssl-dev.
6648 *) The evp_local.h macros were using 'c.##kname' which resulted in
6649 invalid expansion on some systems (SCO 5.0.5 for example).
6650 Corrected to 'c.kname'.
6651 [Phillip Porch <root@theporch.com>]
6653 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6654 a STACK of email addresses from a certificate or request, these look
6655 in the subject name and the subject alternative name extensions and
6656 omit any duplicate addresses.
6659 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6660 This makes DSA verification about 2 % faster.
6663 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6664 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6665 plus overhead for 1024 bit moduli).
6666 This makes exponentiations about 0.5 % faster for 1024 bit
6667 exponents (as measured by "openssl speed rsa2048").
6670 *) Rename memory handling macros to avoid conflicts with other
6672 Malloc => OPENSSL_malloc
6673 Malloc_locked => OPENSSL_malloc_locked
6674 Realloc => OPENSSL_realloc
6675 Free => OPENSSL_free
6678 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6679 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6682 *) CygWin32 support.
6683 [John Jarvie <jjarvie@newsguy.com>]
6685 *) The type-safe stack code has been rejigged. It is now only compiled
6686 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6687 by default all type-specific stack functions are "#define"d back to
6688 standard stack functions. This results in more streamlined output
6689 but retains the type-safety checking possibilities of the original
6693 *) The STACK code has been cleaned up, and certain type declarations
6694 that didn't make a lot of sense have been brought in line. This has
6695 also involved a cleanup of sorts in safestack.h to more correctly
6696 map type-safe stack functions onto their plain stack counterparts.
6697 This work has also resulted in a variety of "const"ifications of
6698 lots of the code, especially "_cmp" operations which should normally
6699 be prototyped with "const" parameters anyway.
6702 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6703 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6704 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6705 where all of 'md' is used each time the PRNG is used, but 'state'
6706 is used only indexed by a cyclic counter. As entropy may not be
6707 well distributed from the beginning, 'md' is important as a
6708 chaining variable. However, the output function chains only half
6709 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6710 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6711 in all of 'state' being rewritten, with the new values depending
6712 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6715 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6716 the handshake is continued after ssl_verify_cert_chain();
6717 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6718 can lead to 'unexplainable' connection aborts later.
6719 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6721 *) Major EVP API cipher revision.
6722 Add hooks for extra EVP features. This allows various cipher
6723 parameters to be set in the EVP interface. Support added for variable
6724 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6725 setting of RC2 and RC5 parameters.
6727 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6730 Remove lots of duplicated code from the EVP library. For example *every*
6731 cipher init() function handles the 'iv' in the same way according to the
6732 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6733 for CFB and OFB modes they zero ctx->num.
6735 New functionality allows removal of S/MIME code RC2 hack.
6737 Most of the routines have the same form and so can be declared in terms
6740 By shifting this to the top level EVP_CipherInit() it can be removed from
6741 all individual ciphers. If the cipher wants to handle IVs or keys
6742 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6745 Change lots of functions like EVP_EncryptUpdate() to now return a
6746 value: although software versions of the algorithms cannot fail
6747 any installed hardware versions can.
6750 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6751 this option is set, tolerate broken clients that send the negotiated
6752 protocol version number instead of the requested protocol version
6756 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6757 i.e. non-zero for export ciphersuites, zero otherwise.
6758 Previous versions had this flag inverted, inconsistent with
6759 rsa_tmp_cb (..._TMP_RSA_CB).
6760 [Bodo Moeller; problem reported by Amit Chopra]
6762 *) Add missing DSA library text string. Work around for some IIS
6763 key files with invalid SEQUENCE encoding.
6766 *) Add a document (doc/standards.txt) that list all kinds of standards
6767 and so on that are implemented in OpenSSL.
6770 *) Enhance c_rehash script. Old version would mishandle certificates
6771 with the same subject name hash and wouldn't handle CRLs at all.
6772 Added -fingerprint option to crl utility, to support new c_rehash
6776 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6779 *) Fix for SSL server purpose checking. Server checking was
6780 rejecting certificates which had extended key usage present
6781 but no ssl client purpose.
6782 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6784 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6785 is a little unclear about how a blank password is handled.
6786 Since the password in encoded as a BMPString with terminating
6787 double NULL a zero length password would end up as just the
6788 double NULL. However no password at all is different and is
6789 handled differently in the PKCS#12 key generation code. NS
6790 treats a blank password as zero length. MSIE treats it as no
6791 password on export: but it will try both on import. We now do
6792 the same: PKCS12_parse() tries zero length and no password if
6793 the password is set to "" or NULL (NULL is now a valid password:
6794 it wasn't before) as does the pkcs12 application.
6797 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6798 perror when PEM_read_bio_X509_REQ fails, the error message must
6799 be obtained from the error queue.
6802 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6803 it in ERR_remove_state if appropriate, and change ERR_get_state
6804 accordingly to avoid race conditions (this is necessary because
6805 thread_hash is no longer constant once set).
6808 *) Bugfix for linux-elf makefile.one.
6811 *) RSA_get_default_method() will now cause a default
6812 RSA_METHOD to be chosen if one doesn't exist already.
6813 Previously this was only set during a call to RSA_new()
6814 or RSA_new_method(NULL) meaning it was possible for
6815 RSA_get_default_method() to return NULL.
6818 *) Added native name translation to the existing DSO code
6819 that will convert (if the flag to do so is set) filenames
6820 that are sufficiently small and have no path information
6821 into a canonical native form. Eg. "blah" converted to
6822 "libblah.so" or "blah.dll" etc.
6825 *) New function ERR_error_string_n(e, buf, len) which is like
6826 ERR_error_string(e, buf), but writes at most 'len' bytes
6827 including the 0 terminator. For ERR_error_string_n, 'buf'
6829 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6831 *) CONF library reworked to become more general. A new CONF
6832 configuration file reader "class" is implemented as well as a
6833 new functions (NCONF_*, for "New CONF") to handle it. The now
6834 old CONF_* functions are still there, but are reimplemented to
6835 work in terms of the new functions. Also, a set of functions
6836 to handle the internal storage of the configuration data is
6837 provided to make it easier to write new configuration file
6838 reader "classes" (I can definitely see something reading a
6839 configuration file in XML format, for example), called _CONF_*,
6840 or "the configuration storage API"...
6842 The new configuration file reading functions are:
6844 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6845 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6847 NCONF_default, NCONF_WIN32
6849 NCONF_dump_fp, NCONF_dump_bio
6851 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6852 NCONF_new creates a new CONF object. This works in the same way
6853 as other interfaces in OpenSSL, like the BIO interface.
6854 NCONF_dump_* dump the internal storage of the configuration file,
6855 which is useful for debugging. All other functions take the same
6856 arguments as the old CONF_* functions wth the exception of the
6857 first that must be a `CONF *' instead of a `LHASH *'.
6859 To make it easer to use the new classes with the old CONF_* functions,
6860 the function CONF_set_default_method is provided.
6863 *) Add '-tls1' option to 'openssl ciphers', which was already
6864 mentioned in the documentation but had not been implemented.
6865 (This option is not yet really useful because even the additional
6866 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6869 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6870 OpenSSL-based applications) load shared libraries and bind to
6871 them in a portable way.
6872 [Geoff Thorpe, with contributions from Richard Levitte]
6874 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6876 *) Make sure _lrotl and _lrotr are only used with MSVC.
6878 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6879 (the default implementation of RAND_status).
6881 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6882 to '-clrext' (= clear extensions), as intended and documented.
6883 [Bodo Moeller; inconsistency pointed out by Michael Attili
6886 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6887 was larger than the MD block size.
6888 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6890 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6891 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6892 using the passed key: if the passed key was a private key the result
6893 of X509_print(), for example, would be to print out all the private key
6897 *) des_quad_cksum() byte order bug fix.
6898 [Ulf Möller, using the problem description in krb4-0.9.7, where
6899 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6901 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6903 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6905 *) For easily testing in shell scripts whether some command
6906 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6907 returns with exit code 0 iff no command of the given name is available.
6908 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6909 the output goes to stdout and nothing is printed to stderr.
6910 Additional arguments are always ignored.
6912 Since for each cipher there is a command of the same name,
6913 the 'no-cipher' compilation switches can be tested this way.
6915 ('openssl no-XXX' is not able to detect pseudo-commands such
6916 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6919 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6922 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6923 is set; it will be thrown away anyway because each handshake creates
6925 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6926 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6927 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6928 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6931 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6932 'Q' and 'R' lose their special meanings (quit/renegotiate).
6933 This is part of what -quiet does; unlike -quiet, -ign_eof
6934 does not suppress any output.
6937 *) Add compatibility options to the purpose and trust code. The
6938 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6939 accepts a certificate or CA, this was the previous behaviour,
6940 with all the associated security issues.
6942 X509_TRUST_COMPAT is the old trust behaviour: only and
6943 automatically trust self signed roots in certificate store. A
6944 new trust setting X509_TRUST_DEFAULT is used to specify that
6945 a purpose has no associated trust setting and it should instead
6946 use the value in the default purpose.
6949 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6950 and fix a memory leak.
6953 *) In util/mkerr.pl (which implements 'make errors'), preserve
6954 reason strings from the previous version of the .c file, as
6955 the default to have only downcase letters (and digits) in
6956 automatically generated reasons codes is not always appropriate.
6959 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6960 using strerror. Previously, ERR_reason_error_string() returned
6961 library names as reason strings for SYSerr; but SYSerr is a special
6962 case where small numbers are errno values, not library numbers.
6965 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6966 converts DSA parameters into DH parameters. (When creating parameters,
6967 DSA_generate_parameters is used.)
6970 *) Include 'length' (recommended exponent length) in C code generated
6971 by 'openssl dhparam -C'.
6974 *) The second argument to set_label in perlasm was already being used
6975 so couldn't be used as a "file scope" flag. Moved to third argument
6979 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6980 instead of RAND_bytes for encryption IVs and salts.
6983 *) Include RAND_status() into RAND_METHOD instead of implementing
6984 it only for md_rand.c Otherwise replacing the PRNG by calling
6985 RAND_set_rand_method would be impossible.
6988 *) Don't let DSA_generate_key() enter an infinite loop if the random
6989 number generation fails.
6992 *) New 'rand' application for creating pseudo-random output.
6995 *) Added configuration support for Linux/IA64
6996 [Rolf Haberrecker <rolf@suse.de>]
6998 *) Assembler module support for Mingw32.
7001 *) Shared library support for HPUX (in shlib/).
7002 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7004 *) Shared library support for Solaris gcc.
7005 [Lutz Behnke <behnke@trustcenter.de>]
7007 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7009 *) PKCS7_encrypt() was adding text MIME headers twice because they
7010 were added manually and by SMIME_crlf_copy().
7013 *) In bntest.c don't call BN_rand with zero bits argument.
7014 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7016 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7017 case was implemented. This caused BN_div_recp() to fail occasionally.
7020 *) Add an optional second argument to the set_label() in the perl
7021 assembly language builder. If this argument exists and is set
7022 to 1 it signals that the assembler should use a symbol whose
7023 scope is the entire file, not just the current function. This
7024 is needed with MASM which uses the format label:: for this scope.
7025 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7027 *) Change the ASN1 types so they are typedefs by default. Before
7028 almost all types were #define'd to ASN1_STRING which was causing
7029 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7033 *) Change names of new functions to the new get1/get0 naming
7034 convention: After 'get1', the caller owns a reference count
7035 and has to call ..._free; 'get0' returns a pointer to some
7036 data structure without incrementing reference counters.
7037 (Some of the existing 'get' functions increment a reference
7038 counter, some don't.)
7039 Similarly, 'set1' and 'add1' functions increase reference
7040 counters or duplicate objects.
7043 *) Allow for the possibility of temp RSA key generation failure:
7044 the code used to assume it always worked and crashed on failure.
7047 *) Fix potential buffer overrun problem in BIO_printf().
7048 [Ulf Möller, using public domain code by Patrick Powell; problem
7049 pointed out by David Sacerdote <das33@cornell.edu>]
7051 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7052 RAND_egd() and RAND_status(). In the command line application,
7053 the EGD socket can be specified like a seed file using RANDFILE
7057 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7058 Some CAs (e.g. Verisign) distribute certificates in this form.
7061 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7062 list to exclude them. This means that no special compilation option
7063 is needed to use anonymous DH: it just needs to be included in the
7067 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7068 EVP_MD_type. The old functionality is available in a new macro called
7069 EVP_MD_md(). Change code that uses it and update docs.
7072 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7073 where the 'void *' argument is replaced by a function pointer argument.
7074 Previously 'void *' was abused to point to functions, which works on
7075 many platforms, but is not correct. As these functions are usually
7076 called by macros defined in OpenSSL header files, most source code
7077 should work without changes.
7080 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7081 sections with information on -D... compiler switches used for
7082 compiling the library so that applications can see them. To enable
7083 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7084 must be defined. E.g.,
7085 #define OPENSSL_ALGORITHM_DEFINES
7086 #include <openssl/opensslconf.h>
7087 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7088 [Richard Levitte, Ulf and Bodo Möller]
7090 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7094 *) Change the 'other' type in certificate aux info to a STACK_OF
7095 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7096 the required ASN1 format: arbitrary types determined by an OID.
7099 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7100 argument to 'req'. This is not because the function is newer or
7101 better than others it just uses the work 'NEW' in the certificate
7102 request header lines. Some software needs this.
7105 *) Reorganise password command line arguments: now passwords can be
7106 obtained from various sources. Delete the PEM_cb function and make
7107 it the default behaviour: i.e. if the callback is NULL and the
7108 usrdata argument is not NULL interpret it as a null terminated pass
7109 phrase. If usrdata and the callback are NULL then the pass phrase
7110 is prompted for as usual.
7113 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7114 the support is automatically enabled. The resulting binaries will
7115 autodetect the card and use it if present.
7116 [Ben Laurie and Compaq Inc.]
7118 *) Work around for Netscape hang bug. This sends certificate request
7119 and server done in one record. Since this is perfectly legal in the
7120 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7121 the bugs/SSLv3 entry for more info.
7124 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7127 *) Add -rand argument to smime and pkcs12 applications and read/write
7131 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7134 *) Add command line password options to the remaining applications.
7137 *) Bug fix for BN_div_recp() for numerators with an even number of
7141 *) More tests in bntest.c, and changed test_bn output.
7144 *) ./config recognizes MacOS X now.
7147 *) Bug fix for BN_div() when the first words of num and divsor are
7148 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7151 *) Add support for various broken PKCS#8 formats, and command line
7152 options to produce them.
7155 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7156 get temporary BIGNUMs from a BN_CTX.
7159 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7163 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7164 include a #define from the old name to the new. The original intent
7165 was that statically linked binaries could for example just call
7166 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7167 link with digests. This never worked becayse SSLeay_add_all_digests()
7168 and SSLeay_add_all_ciphers() were in the same source file so calling
7169 one would link with the other. They are now in separate source files.
7172 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7175 *) Use a less unusual form of the Miller-Rabin primality test (it used
7176 a binary algorithm for exponentiation integrated into the Miller-Rabin
7177 loop, our standard modexp algorithms are faster).
7180 *) Support for the EBCDIC character set completed.
7181 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7183 *) Source code cleanups: use const where appropriate, eliminate casts,
7184 use void * instead of char * in lhash.
7187 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7188 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7189 this the server could overwrite ephemeral keys that the client
7193 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7194 using 50 iterations of the Rabin-Miller test.
7196 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7197 iterations of the Rabin-Miller test as required by the appendix
7198 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7199 As BN_is_prime_fasttest includes trial division, DSA parameter
7200 generation becomes much faster.
7202 This implies a change for the callback functions in DSA_is_prime
7203 and DSA_generate_parameters: The callback function is called once
7204 for each positive witness in the Rabin-Miller test, not just
7205 occasionally in the inner loop; and the parameters to the
7206 callback function now provide an iteration count for the outer
7207 loop rather than for the current invocation of the inner loop.
7208 DSA_generate_parameters additionally can call the callback
7209 function with an 'iteration count' of -1, meaning that a
7210 candidate has passed the trial division test (when q is generated
7211 from an application-provided seed, trial division is skipped).
7214 *) New function BN_is_prime_fasttest that optionally does trial
7215 division before starting the Rabin-Miller test and has
7216 an additional BN_CTX * argument (whereas BN_is_prime always
7217 has to allocate at least one BN_CTX).
7218 'callback(1, -1, cb_arg)' is called when a number has passed the
7219 trial division stage.
7222 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7226 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7229 *) New function BN_pseudo_rand().
7232 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7233 bignum version of BN_from_montgomery() with the working code from
7234 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7238 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7239 made it impossible to use the same SSL_SESSION data structure in
7240 SSL2 clients in multiple threads.
7243 *) The return value of RAND_load_file() no longer counts bytes obtained
7244 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7245 to seed the PRNG (previously an explicit byte count was required).
7246 [Ulf Möller, Bodo Möller]
7248 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7249 used (char *) instead of (void *) and had casts all over the place.
7252 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7255 *) Retain source code compatibility for BN_prime_checks macro:
7256 BN_is_prime(..., BN_prime_checks, ...) now uses
7257 BN_prime_checks_for_size to determine the appropriate number of
7258 Rabin-Miller iterations.
7261 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7262 DH_CHECK_P_NOT_SAFE_PRIME.
7263 (Check if this is true? OpenPGP calls them "strong".)
7266 *) Merge the functionality of "dh" and "gendh" programs into a new program
7267 "dhparam". The old programs are retained for now but will handle DH keys
7268 (instead of parameters) in future.
7271 *) Make the ciphers, s_server and s_client programs check the return values
7272 when a new cipher list is set.
7275 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7276 ciphers. Before when the 56bit ciphers were enabled the sorting was
7279 The syntax for the cipher sorting has been extended to support sorting by
7280 cipher-strength (using the strength_bits hard coded in the tables).
7281 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7283 Fix a bug in the cipher-command parser: when supplying a cipher command
7284 string with an "undefined" symbol (neither command nor alphanumeric
7285 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7286 an error is flagged.
7288 Due to the strength-sorting extension, the code of the
7289 ssl_create_cipher_list() function was completely rearranged. I hope that
7290 the readability was also increased :-)
7291 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7293 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7294 for the first serial number and places 2 in the serial number file. This
7295 avoids problems when the root CA is created with serial number zero and
7296 the first user certificate has the same issuer name and serial number
7300 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7301 the new code. Add documentation for this stuff.
7304 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7305 X509_*() to X509at_*() on the grounds that they don't handle X509
7306 structures and behave in an analagous way to the X509v3 functions:
7307 they shouldn't be called directly but wrapper functions should be used
7310 So we also now have some wrapper functions that call the X509at functions
7311 when passed certificate requests. (TO DO: similar things can be done with
7312 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7313 things. Some of these need some d2i or i2d and print functionality
7314 because they handle more complex structures.)
7317 *) Add missing #ifndefs that caused missing symbols when building libssl
7318 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7319 NO_RSA in ssl/s2*.c.
7320 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7322 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7323 has a return value which indicates the quality of the random data
7324 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7325 error queue. New function RAND_pseudo_bytes() generates output that is
7326 guaranteed to be unique but not unpredictable. RAND_add is like
7327 RAND_seed, but takes an extra argument for an entropy estimate
7328 (RAND_seed always assumes full entropy).
7331 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7332 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7333 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7334 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7335 false-positive rate of at most 2^-80 for random input.
7338 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7341 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7342 in the 0.9.5 release), this returns the chain
7343 from an X509_CTX structure with a dup of the stack and all
7344 the X509 reference counts upped: so the stack will exist
7345 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7348 Also make SSL_SESSION_print() print out the verify return
7352 *) Add manpage for the pkcs12 command. Also change the default
7353 behaviour so MAC iteration counts are used unless the new
7354 -nomaciter option is used. This improves file security and
7355 only older versions of MSIE (4.0 for example) need it.
7358 *) Honor the no-xxx Configure options when creating .DEF files.
7361 *) Add PKCS#10 attributes to field table: challengePassword,
7362 unstructuredName and unstructuredAddress. These are taken from
7363 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7364 international characters are used.
7366 More changes to X509_ATTRIBUTE code: allow the setting of types
7367 based on strings. Remove the 'loc' parameter when adding
7368 attributes because these will be a SET OF encoding which is sorted
7372 *) Initial changes to the 'req' utility to allow request generation
7373 automation. This will allow an application to just generate a template
7374 file containing all the field values and have req construct the
7377 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7378 used all over the place including certificate requests and PKCS#7
7379 structures. They are currently handled manually where necessary with
7380 some primitive wrappers for PKCS#7. The new functions behave in a
7381 manner analogous to the X509 extension functions: they allow
7382 attributes to be looked up by NID and added.
7384 Later something similar to the X509V3 code would be desirable to
7385 automatically handle the encoding, decoding and printing of the
7386 more complex types. The string types like challengePassword can
7387 be handled by the string table functions.
7389 Also modified the multi byte string table handling. Now there is
7390 a 'global mask' which masks out certain types. The table itself
7391 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7392 is useful when for example there is only one permissible type
7393 (as in countryName) and using the mask might result in no valid
7397 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7398 SSL_get_peer_finished to allow applications to obtain the latest
7399 Finished messages sent to the peer or expected from the peer,
7400 respectively. (SSL_get_peer_finished is usually the Finished message
7401 actually received from the peer, otherwise the protocol will be aborted.)
7403 As the Finished message are message digests of the complete handshake
7404 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7405 be used for external authentication procedures when the authentication
7406 provided by SSL/TLS is not desired or is not enough.
7409 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7410 the host supports BWX extension and if Compaq C is present on the
7411 $PATH. Just exploiting of the BWX extension results in 20-30%
7412 performance kick for some algorithms, e.g. DES and RC4 to mention
7413 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7417 *) Add support for MS "fast SGC". This is arguably a violation of the
7418 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7419 weak crypto and after checking the certificate is SGC a second one
7420 with strong crypto. MS SGC stops the first handshake after receiving
7421 the server certificate message and sends a second client hello. Since
7422 a server will typically do all the time consuming operations before
7423 expecting any further messages from the client (server key exchange
7424 is the most expensive) there is little difference between the two.
7426 To get OpenSSL to support MS SGC we have to permit a second client
7427 hello message after we have sent server done. In addition we have to
7428 reset the MAC if we do get this second client hello.
7431 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7432 if a DER encoded private key is RSA or DSA traditional format. Changed
7433 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7434 format DER encoded private key. Newer code should use PKCS#8 format which
7435 has the key type encoded in the ASN1 structure. Added DER private key
7436 support to pkcs8 application.
7439 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7440 ciphersuites has been selected (as required by the SSL 3/TLS 1
7441 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7442 is set, we interpret this as a request to violate the specification
7443 (the worst that can happen is a handshake failure, and 'correct'
7444 behaviour would result in a handshake failure anyway).
7447 *) In SSL_CTX_add_session, take into account that there might be multiple
7448 SSL_SESSION structures with the same session ID (e.g. when two threads
7449 concurrently obtain them from an external cache).
7450 The internal cache can handle only one SSL_SESSION with a given ID,
7451 so if there's a conflict, we now throw out the old one to achieve
7455 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7456 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7457 some routines that use cipher OIDs: some ciphers do not have OIDs
7458 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7462 *) Simplify the trust setting structure and code. Now we just have
7463 two sequences of OIDs for trusted and rejected settings. These will
7464 typically have values the same as the extended key usage extension
7465 and any application specific purposes.
7467 The trust checking code now has a default behaviour: it will just
7468 check for an object with the same NID as the passed id. Functions can
7469 be provided to override either the default behaviour or the behaviour
7470 for a given id. SSL client, server and email already have functions
7471 in place for compatibility: they check the NID and also return "trusted"
7472 if the certificate is self signed.
7475 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7476 traditional format into an EVP_PKEY structure.
7479 *) Add a password callback function PEM_cb() which either prompts for
7480 a password if usr_data is NULL or otherwise assumes it is a null
7481 terminated password. Allow passwords to be passed on command line
7482 environment or config files in a few more utilities.
7485 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7486 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7487 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7488 Update documentation.
7491 *) Support for ASN1 "NULL" type. This could be handled before by using
7492 ASN1_TYPE but there wasn't any function that would try to read a NULL
7493 and produce an error if it couldn't. For compatibility we also have
7494 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7495 don't allocate anything because they don't need to.
7498 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7500 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7502 *) Rebuild of the memory allocation routines used by OpenSSL code and
7503 possibly others as well. The purpose is to make an interface that
7504 provide hooks so anyone can build a separate set of allocation and
7505 deallocation routines to be used by OpenSSL, for example memory
7506 pool implementations, or something else, which was previously hard
7507 since Malloc(), Realloc() and Free() were defined as macros having
7508 the values malloc, realloc and free, respectively (except for Win32
7509 compilations). The same is provided for memory debugging code.
7510 OpenSSL already comes with functionality to find memory leaks, but
7511 this gives people a chance to debug other memory problems.
7513 With these changes, a new set of functions and macros have appeared:
7515 CRYPTO_set_mem_debug_functions() [F]
7516 CRYPTO_get_mem_debug_functions() [F]
7517 CRYPTO_dbg_set_options() [F]
7518 CRYPTO_dbg_get_options() [F]
7519 CRYPTO_malloc_debug_init() [M]
7521 The memory debug functions are NULL by default, unless the library
7522 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7523 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7524 gives the standard debugging functions that come with OpenSSL) or
7525 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7526 provided by the library user) must be used. When the standard
7527 debugging functions are used, CRYPTO_dbg_set_options can be used to
7528 request additional information:
7529 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7530 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7532 Also, things like CRYPTO_set_mem_functions will always give the
7533 expected result (the new set of functions is used for allocation
7534 and deallocation) at all times, regardless of platform and compiler
7537 To finish it up, some functions that were never use in any other
7538 way than through macros have a new API and new semantic:
7541 CRYPTO_dbg_realloc()
7544 All macros of value have retained their old syntax.
7545 [Richard Levitte and Bodo Moeller]
7547 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7548 ordering of SMIMECapabilities wasn't in "strength order" and there
7549 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7553 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7554 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7555 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7557 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7558 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7559 functionality to handle multipart/signed properly) and a utility
7560 called 'smime' to call all this stuff. This is based on code I
7561 originally wrote for Celo who have kindly allowed it to be
7562 included in OpenSSL.
7565 *) Add variants des_set_key_checked and des_set_key_unchecked of
7566 des_set_key (aka des_key_sched). Global variable des_check_key
7567 decides which of these is called by des_set_key; this way
7568 des_check_key behaves as it always did, but applications and
7569 the library itself, which was buggy for des_check_key == 1,
7570 have a cleaner way to pick the version they need.
7573 *) New function PKCS12_newpass() which changes the password of a
7577 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7578 dynamic mix. In both cases the ids can be used as an index into the
7579 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7580 functions so they accept a list of the field values and the
7581 application doesn't need to directly manipulate the X509_TRUST
7585 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7589 *) Modify the way the V3 extension code looks up extensions. This now
7590 works in a similar way to the object code: we have some "standard"
7591 extensions in a static table which is searched with OBJ_bsearch()
7592 and the application can add dynamic ones if needed. The file
7593 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7594 updated whenever a new extension is added to the core code and kept
7595 in ext_nid order. There is a simple program 'tabtest.c' which checks
7596 this. New extensions are not added too often so this file can readily
7597 be maintained manually.
7599 There are two big advantages in doing things this way. The extensions
7600 can be looked up immediately and no longer need to be "added" using
7601 X509V3_add_standard_extensions(): this function now does nothing.
7602 [Side note: I get *lots* of email saying the extension code doesn't
7603 work because people forget to call this function]
7604 Also no dynamic allocation is done unless new extensions are added:
7605 so if we don't add custom extensions there is no need to call
7606 X509V3_EXT_cleanup().
7609 *) Modify enc utility's salting as follows: make salting the default. Add a
7610 magic header, so unsalted files fail gracefully instead of just decrypting
7611 to garbage. This is because not salting is a big security hole, so people
7612 should be discouraged from doing it.
7615 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7616 digest to be passed on the command line but it only used this
7617 parameter when signing a certificate. Modified so all relevant
7618 operations are affected by the digest parameter including the
7619 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7620 DSA key was used because it didn't fix the digest.
7623 *) Initial certificate chain verify code. Currently tests the untrusted
7624 certificates for consistency with the verify purpose (which is set
7625 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7627 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7628 this is because it will reject chains with invalid extensions whereas
7629 every previous version of OpenSSL and SSLeay made no checks at all.
7631 Trust code: checks the root CA for the relevant trust settings. Trust
7632 settings have an initial value consistent with the verify purpose: e.g.
7633 if the verify purpose is for SSL client use it expects the CA to be
7634 trusted for SSL client use. However the default value can be changed to
7635 permit custom trust settings: one example of this would be to only trust
7636 certificates from a specific "secure" set of CAs.
7638 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7639 which should be used for version portability: especially since the
7640 verify structure is likely to change more often now.
7642 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7643 to set them. If not set then assume SSL clients will verify SSL servers
7646 Two new options to the verify program: -untrusted allows a set of
7647 untrusted certificates to be passed in and -purpose which sets the
7648 intended purpose of the certificate. If a purpose is set then the
7649 new chain verify code is used to check extension consistency.
7652 *) Support for the authority information access extension.
7655 *) Modify RSA and DSA PEM read routines to transparently handle
7656 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7657 public keys in a format compatible with certificate
7658 SubjectPublicKeyInfo structures. Unfortunately there were already
7659 functions called *_PublicKey_* which used various odd formats so
7660 these are retained for compatibility: however the DSA variants were
7661 never in a public release so they have been deleted. Changed dsa/rsa
7662 utilities to handle the new format: note no releases ever handled public
7663 keys so we should be OK.
7665 The primary motivation for this change is to avoid the same fiasco
7666 that dogs private keys: there are several incompatible private key
7667 formats some of which are standard and some OpenSSL specific and
7668 require various evil hacks to allow partial transparent handling and
7669 even then it doesn't work with DER formats. Given the option anything
7670 other than PKCS#8 should be dumped: but the other formats have to
7671 stay in the name of compatibility.
7673 With public keys and the benefit of hindsight one standard format
7674 is used which works with EVP_PKEY, RSA or DSA structures: though
7675 it clearly returns an error if you try to read the wrong kind of key.
7677 Added a -pubkey option to the 'x509' utility to output the public key.
7678 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7679 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7680 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7681 that do the same as the EVP_PKEY_assign_*() except they up the
7682 reference count of the added key (they don't "swallow" the
7686 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7687 CRLs would fail if the file contained no certificates or no CRLs:
7688 added a new function to read in both types and return the number
7689 read: this means that if none are read it will be an error. The
7690 DER versions of the certificate and CRL reader would always fail
7691 because it isn't possible to mix certificates and CRLs in DER format
7692 without choking one or the other routine. Changed this to just read
7693 a certificate: this is the best we can do. Also modified the code
7694 in apps/verify.c to take notice of return codes: it was previously
7695 attempting to read in certificates from NULL pointers and ignoring
7696 any errors: this is one reason why the cert and CRL reader seemed
7697 to work. It doesn't check return codes from the default certificate
7698 routines: these may well fail if the certificates aren't installed.
7701 *) Code to support otherName option in GeneralName.
7704 *) First update to verify code. Change the verify utility
7705 so it warns if it is passed a self signed certificate:
7706 for consistency with the normal behaviour. X509_verify
7707 has been modified to it will now verify a self signed
7708 certificate if *exactly* the same certificate appears
7709 in the store: it was previously impossible to trust a
7710 single self signed certificate. This means that:
7711 openssl verify ss.pem
7712 now gives a warning about a self signed certificate but
7713 openssl verify -CAfile ss.pem ss.pem
7717 *) For servers, store verify_result in SSL_SESSION data structure
7718 (and add it to external session representation).
7719 This is needed when client certificate verifications fails,
7720 but an application-provided verification callback (set by
7721 SSL_CTX_set_cert_verify_callback) allows accepting the session
7722 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7723 but returns 1): When the session is reused, we have to set
7724 ssl->verify_result to the appropriate error code to avoid
7726 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7728 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7729 case in PKCS7_dataInit() where the signed PKCS7 structure
7730 didn't contain any existing data because it was being created.
7731 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7733 *) Add a salt to the key derivation routines in enc.c. This
7734 forms the first 8 bytes of the encrypted file. Also add a
7735 -S option to allow a salt to be input on the command line.
7738 *) New function X509_cmp(). Oddly enough there wasn't a function
7739 to compare two certificates. We do this by working out the SHA1
7740 hash and comparing that. X509_cmp() will be needed by the trust
7744 *) SSL_get1_session() is like SSL_get_session(), but increments
7745 the reference count in the SSL_SESSION returned.
7746 [Geoff Thorpe <geoff@eu.c2.net>]
7748 *) Fix for 'req': it was adding a null to request attributes.
7749 Also change the X509_LOOKUP and X509_INFO code to handle
7750 certificate auxiliary information.
7753 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7757 *) Add the possibility to add extra information to the memory leak
7758 detecting output, to form tracebacks, showing from where each
7759 allocation was originated: CRYPTO_push_info("constant string") adds
7760 the string plus current file name and line number to a per-thread
7761 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7762 is like calling CYRPTO_pop_info() until the stack is empty.
7763 Also updated memory leak detection code to be multi-thread-safe.
7766 *) Add options -text and -noout to pkcs7 utility and delete the
7767 encryption options which never did anything. Update docs.
7770 *) Add options to some of the utilities to allow the pass phrase
7771 to be included on either the command line (not recommended on
7772 OSes like Unix) or read from the environment. Update the
7773 manpages and fix a few bugs.
7776 *) Add a few manpages for some of the openssl commands.
7779 *) Fix the -revoke option in ca. It was freeing up memory twice,
7780 leaking and not finding already revoked certificates.
7783 *) Extensive changes to support certificate auxiliary information.
7784 This involves the use of X509_CERT_AUX structure and X509_AUX
7785 functions. An X509_AUX function such as PEM_read_X509_AUX()
7786 can still read in a certificate file in the usual way but it
7787 will also read in any additional "auxiliary information". By
7788 doing things this way a fair degree of compatibility can be
7789 retained: existing certificates can have this information added
7790 using the new 'x509' options.
7792 Current auxiliary information includes an "alias" and some trust
7793 settings. The trust settings will ultimately be used in enhanced
7794 certificate chain verification routines: currently a certificate
7795 can only be trusted if it is self signed and then it is trusted
7799 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7800 The problem was that one of the replacement routines had not been working
7801 since SSLeay releases. For now the offending routine has been replaced
7802 with non-optimised assembler. Even so, this now gives around 95%
7803 performance improvement for 1024 bit RSA signs.
7806 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7807 handling. Most clients have the effective key size in bits equal to
7808 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7809 A few however don't do this and instead use the size of the decrypted key
7810 to determine the RC2 key length and the AlgorithmIdentifier to determine
7811 the effective key length. In this case the effective key length can still
7812 be 40 bits but the key length can be 168 bits for example. This is fixed
7813 by manually forcing an RC2 key into the EVP_PKEY structure because the
7814 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7815 the key length and effective key length are equal.
7818 *) Add a bunch of functions that should simplify the creation of
7819 X509_NAME structures. Now you should be able to do:
7820 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7821 and have it automatically work out the correct field type and fill in
7822 the structures. The more adventurous can try:
7823 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7824 and it will (hopefully) work out the correct multibyte encoding.
7827 *) Change the 'req' utility to use the new field handling and multibyte
7828 copy routines. Before the DN field creation was handled in an ad hoc
7829 way in req, ca, and x509 which was rather broken and didn't support
7830 BMPStrings or UTF8Strings. Since some software doesn't implement
7831 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7832 using the dirstring_type option. See the new comment in the default
7833 openssl.cnf for more info.
7836 *) Make crypto/rand/md_rand.c more robust:
7837 - Assure unique random numbers after fork().
7838 - Make sure that concurrent threads access the global counter and
7839 md serializably so that we never lose entropy in them
7840 or use exactly the same state in multiple threads.
7841 Access to the large state is not always serializable because
7842 the additional locking could be a performance killer, and
7843 md should be large enough anyway.
7846 *) New file apps/app_rand.c with commonly needed functionality
7847 for handling the random seed file.
7849 Use the random seed file in some applications that previously did not:
7851 dsaparam -genkey (which also ignored its '-rand' option),
7854 x509 (when signing).
7855 Except on systems with /dev/urandom, it is crucial to have a random
7856 seed file at least for key creation, DSA signing, and for DH exchanges;
7857 for RSA signatures we could do without one.
7859 gendh and gendsa (unlike genrsa) used to read only the first byte
7860 of each file listed in the '-rand' option. The function as previously
7861 found in genrsa is now in app_rand.c and is used by all programs
7862 that support '-rand'.
7865 *) In RAND_write_file, use mode 0600 for creating files;
7866 don't just chmod when it may be too late.
7869 *) Report an error from X509_STORE_load_locations
7870 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7873 *) New function ASN1_mbstring_copy() this copies a string in either
7874 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7875 into an ASN1_STRING type. A mask of permissible types is passed
7876 and it chooses the "minimal" type to use or an error if not type
7880 *) Add function equivalents to the various macros in asn1.h. The old
7881 macros are retained with an M_ prefix. Code inside the library can
7882 use the M_ macros. External code (including the openssl utility)
7883 should *NOT* in order to be "shared library friendly".
7886 *) Add various functions that can check a certificate's extensions
7887 to see if it usable for various purposes such as SSL client,
7888 server or S/MIME and CAs of these types. This is currently
7889 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7890 verification. Also added a -purpose flag to x509 utility to
7891 print out all the purposes.
7894 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7898 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7899 for, obtain and decode and extension and obtain its critical flag.
7900 This allows all the necessary extension code to be handled in a
7901 single function call.
7904 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7905 platforms. See crypto/rc4/rc4_enc.c for further details.
7908 *) New -noout option to asn1parse. This causes no output to be produced
7909 its main use is when combined with -strparse and -out to extract data
7910 from a file (which may not be in ASN.1 format).
7913 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7914 when producing the local key id.
7915 [Richard Levitte <levitte@stacken.kth.se>]
7917 *) New option -dhparam in s_server. This allows a DH parameter file to be
7918 stated explicitly. If it is not stated then it tries the first server
7919 certificate file. The previous behaviour hard coded the filename
7923 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7924 a public key to be input or output. For example:
7925 openssl rsa -in key.pem -pubout -out pubkey.pem
7926 Also added necessary DSA public key functions to handle this.
7929 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7930 in the message. This was handled by allowing
7931 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7932 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7934 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7935 to the end of the strings whereas this didn't. This would cause problems
7936 if strings read with d2i_ASN1_bytes() were later modified.
7937 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7939 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7940 data and it contains EOF it will end up returning an error. This is
7941 caused by input 46 bytes long. The cause is due to the way base64
7942 BIOs find the start of base64 encoded data. They do this by trying a
7943 trial decode on each line until they find one that works. When they
7944 do a flag is set and it starts again knowing it can pass all the
7945 data directly through the decoder. Unfortunately it doesn't reset
7946 the context it uses. This means that if EOF is reached an attempt
7947 is made to pass two EOFs through the context and this causes the
7948 resulting error. This can also cause other problems as well. As is
7949 usual with these problems it takes *ages* to find and the fix is
7950 trivial: move one line.
7951 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7953 *) Ugly workaround to get s_client and s_server working under Windows. The
7954 old code wouldn't work because it needed to select() on sockets and the
7955 tty (for keypresses and to see if data could be written). Win32 only
7956 supports select() on sockets so we select() with a 1s timeout on the
7957 sockets and then see if any characters are waiting to be read, if none
7958 are present then we retry, we also assume we can always write data to
7959 the tty. This isn't nice because the code then blocks until we've
7960 received a complete line of data and it is effectively polling the
7961 keyboard at 1s intervals: however it's quite a bit better than not
7962 working at all :-) A dedicated Windows application might handle this
7963 with an event loop for example.
7966 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7967 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7968 will be called when RSA_sign() and RSA_verify() are used. This is useful
7969 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7970 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7971 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7972 This necessitated the support of an extra signature type NID_md5_sha1
7973 for SSL signatures and modifications to the SSL library to use it instead
7974 of calling RSA_public_decrypt() and RSA_private_encrypt().
7977 *) Add new -verify -CAfile and -CApath options to the crl program, these
7978 will lookup a CRL issuers certificate and verify the signature in a
7979 similar way to the verify program. Tidy up the crl program so it
7980 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7981 less strict. It will now permit CRL extensions even if it is not
7982 a V2 CRL: this will allow it to tolerate some broken CRLs.
7985 *) Initialize all non-automatic variables each time one of the openssl
7986 sub-programs is started (this is necessary as they may be started
7987 multiple times from the "OpenSSL>" prompt).
7988 [Lennart Bang, Bodo Moeller]
7990 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7991 removing all other RSA functionality (this is what NO_RSA does). This
7992 is so (for example) those in the US can disable those operations covered
7993 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7997 *) Non-copying interface to BIO pairs.
7998 (still largely untested)
8001 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8002 ASCII string. This was handled independently in various places before.
8005 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8006 UTF8 strings a character at a time.
8009 *) Use client_version from client hello to select the protocol
8010 (s23_srvr.c) and for RSA client key exchange verification
8011 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8014 *) Add various utility functions to handle SPKACs, these were previously
8015 handled by poking round in the structure internals. Added new function
8016 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8017 print, verify and generate SPKACs. Based on an original idea from
8018 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8021 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8024 *) Allow the config file extension section to be overwritten on the
8025 command line. Based on an original idea from Massimiliano Pala
8026 <madwolf@comune.modena.it>. The new option is called -extensions
8027 and can be applied to ca, req and x509. Also -reqexts to override
8028 the request extensions in req and -crlexts to override the crl extensions
8032 *) Add new feature to the SPKAC handling in ca. Now you can include
8033 the same field multiple times by preceding it by "XXXX." for example:
8036 this is the same syntax as used in the req config file.
8039 *) Allow certificate extensions to be added to certificate requests. These
8040 are specified in a 'req_extensions' option of the req section of the
8041 config file. They can be printed out with the -text option to req but
8042 are otherwise ignored at present.
8045 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8046 data read consists of only the final block it would not decrypted because
8047 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8048 A misplaced 'break' also meant the decrypted final block might not be
8049 copied until the next read.
8052 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8053 a few extra parameters to the DH structure: these will be useful if
8054 for example we want the value of 'q' or implement X9.42 DH.
8057 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8058 provides hooks that allow the default DSA functions or functions on a
8059 "per key" basis to be replaced. This allows hardware acceleration and
8060 hardware key storage to be handled without major modification to the
8061 library. Also added low level modexp hooks and CRYPTO_EX structure and
8062 associated functions.
8065 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8066 as "read only": it can't be written to and the buffer it points to will
8067 not be freed. Reading from a read only BIO is much more efficient than
8068 a normal memory BIO. This was added because there are several times when
8069 an area of memory needs to be read from a BIO. The previous method was
8070 to create a memory BIO and write the data to it, this results in two
8071 copies of the data and an O(n^2) reading algorithm. There is a new
8072 function BIO_new_mem_buf() which creates a read only memory BIO from
8073 an area of memory. Also modified the PKCS#7 routines to use read only
8077 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8078 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8079 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8080 but a retry condition occured while trying to read the rest.
8083 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8084 NID_pkcs7_encrypted by default: this was wrong since this should almost
8085 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8086 the encrypted data type: this is a more sensible place to put it and it
8087 allows the PKCS#12 code to be tidied up that duplicated this
8091 *) Changed obj_dat.pl script so it takes its input and output files on
8092 the command line. This should avoid shell escape redirection problems
8096 *) Initial support for certificate extension requests, these are included
8097 in things like Xenroll certificate requests. Included functions to allow
8098 extensions to be obtained and added.
8101 *) -crlf option to s_client and s_server for sending newlines as
8102 CRLF (as required by many protocols).
8105 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8107 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8108 [Ralf S. Engelschall]
8110 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8111 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8113 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8117 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8118 DH parameters/keys (q is lost during that conversion, but the resulting
8119 DH parameters contain its length).
8121 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8122 much faster than DH_generate_parameters (which creates parameters
8123 where p = 2*q + 1), and also the smaller q makes DH computations
8124 much more efficient (160-bit exponentiation instead of 1024-bit
8125 exponentiation); so this provides a convenient way to support DHE
8126 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8127 utter importance to use
8128 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8130 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8131 when such DH parameters are used, because otherwise small subgroup
8132 attacks may become possible!
8135 *) Avoid memory leak in i2d_DHparams.
8138 *) Allow the -k option to be used more than once in the enc program:
8139 this allows the same encrypted message to be read by multiple recipients.
8142 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8143 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8144 it will always use the numerical form of the OID, even if it has a short
8148 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8149 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8150 otherwise bn_mod_exp was called. In the case of hardware keys for example
8151 no private key components need be present and it might store extra data
8152 in the RSA structure, which cannot be accessed from bn_mod_exp.
8153 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8154 private key operations.
8157 *) Added support for SPARC Linux.
8160 *) pem_password_cb function type incompatibly changed from
8161 typedef int pem_password_cb(char *buf, int size, int rwflag);
8163 ....(char *buf, int size, int rwflag, void *userdata);
8164 so that applications can pass data to their callbacks:
8165 The PEM[_ASN1]_{read,write}... functions and macros now take an
8166 additional void * argument, which is just handed through whenever
8167 the password callback is called.
8168 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8170 New function SSL_CTX_set_default_passwd_cb_userdata.
8172 Compatibility note: As many C implementations push function arguments
8173 onto the stack in reverse order, the new library version is likely to
8174 interoperate with programs that have been compiled with the old
8175 pem_password_cb definition (PEM_whatever takes some data that
8176 happens to be on the stack as its last argument, and the callback
8177 just ignores this garbage); but there is no guarantee whatsoever that
8180 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8181 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8182 problems not only on Windows, but also on some Unix platforms.
8183 To avoid problematic command lines, these definitions are now in an
8184 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8185 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8188 *) MIPS III/IV assembler module is reimplemented.
8191 *) More DES library cleanups: remove references to srand/rand and
8192 delete an unused file.
8195 *) Add support for the the free Netwide assembler (NASM) under Win32,
8196 since not many people have MASM (ml) and it can be hard to obtain.
8197 This is currently experimental but it seems to work OK and pass all
8198 the tests. Check out INSTALL.W32 for info.
8201 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8202 without temporary keys kept an extra copy of the server key,
8203 and connections with temporary keys did not free everything in case
8207 *) New function RSA_check_key and new openssl rsa option -check
8208 for verifying the consistency of RSA keys.
8209 [Ulf Moeller, Bodo Moeller]
8211 *) Various changes to make Win32 compile work:
8212 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8213 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8214 comparison" warnings.
8215 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8218 *) Add a debugging option to PKCS#5 v2 key generation function: when
8219 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8220 derived keys are printed to stderr.
8223 *) Copy the flags in ASN1_STRING_dup().
8224 [Roman E. Pavlov <pre@mo.msk.ru>]
8226 *) The x509 application mishandled signing requests containing DSA
8227 keys when the signing key was also DSA and the parameters didn't match.
8229 It was supposed to omit the parameters when they matched the signing key:
8230 the verifying software was then supposed to automatically use the CA's
8231 parameters if they were absent from the end user certificate.
8233 Omitting parameters is no longer recommended. The test was also
8234 the wrong way round! This was probably due to unusual behaviour in
8235 EVP_cmp_parameters() which returns 1 if the parameters match.
8236 This meant that parameters were omitted when they *didn't* match and
8237 the certificate was useless. Certificates signed with 'ca' didn't have
8239 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8241 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8242 The interface is as follows:
8243 Applications can use
8244 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8245 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8246 "off" is now the default.
8247 The library internally uses
8248 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8249 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8250 to disable memory-checking temporarily.
8252 Some inconsistent states that previously were possible (and were
8253 even the default) are now avoided.
8255 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8256 with each memory chunk allocated; this is occasionally more helpful
8257 than just having a counter.
8259 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8261 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8265 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8266 which largely parallels "options", but is for changing API behaviour,
8267 whereas "options" are about protocol behaviour.
8268 Initial "mode" flags are:
8270 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8271 a single record has been written.
8272 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8273 retries use the same buffer location.
8274 (But all of the contents must be
8278 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8281 *) Fix problems with no-hmac etc.
8282 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8284 *) New functions RSA_get_default_method(), RSA_set_method() and
8285 RSA_get_method(). These allows replacement of RSA_METHODs without having
8286 to mess around with the internals of an RSA structure.
8289 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8290 Also really enable memory leak checks in openssl.c and in some
8292 [Chad C. Mulligan, Bodo Moeller]
8294 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8295 up the length of negative integers. This has now been simplified to just
8296 store the length when it is first determined and use it later, rather
8297 than trying to keep track of where data is copied and updating it to
8299 [Steve Henson, reported by Brien Wheeler
8300 <bwheeler@authentica-security.com>]
8302 *) Add a new function PKCS7_signatureVerify. This allows the verification
8303 of a PKCS#7 signature but with the signing certificate passed to the
8304 function itself. This contrasts with PKCS7_dataVerify which assumes the
8305 certificate is present in the PKCS#7 structure. This isn't always the
8306 case: certificates can be omitted from a PKCS#7 structure and be
8307 distributed by "out of band" means (such as a certificate database).
8310 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8311 function prototypes in pem.h, also change util/mkdef.pl to add the
8312 necessary function names.
8315 *) mk1mf.pl (used by Windows builds) did not properly read the
8316 options set by Configure in the top level Makefile, and Configure
8317 was not even able to write more than one option correctly.
8318 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8321 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8322 file to be loaded from a BIO or FILE pointer. The BIO version will
8323 for example allow memory BIOs to contain config info.
8326 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8327 Whoever hopes to achieve shared-library compatibility across versions
8328 must use this, not the compile-time macro.
8329 (Exercise 0.9.4: Which is the minimum library version required by
8331 Note: All this applies only to multi-threaded programs, others don't
8335 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8336 through a BIO pair triggered the default case, i.e.
8337 SSLerr(...,SSL_R_UNKNOWN_STATE).
8340 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8341 can use the SSL library even if none of the specific BIOs is
8345 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8346 for the encoded length.
8347 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8349 *) Add initial documentation of the X509V3 functions.
8352 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8353 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8354 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8355 secure PKCS#8 private key format with a high iteration count.
8358 *) Fix determination of Perl interpreter: A perl or perl5
8359 _directory_ in $PATH was also accepted as the interpreter.
8360 [Ralf S. Engelschall]
8362 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8363 wrong with it but it was very old and did things like calling
8364 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8368 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8369 to use the new extension code.
8372 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8373 with macros. This should make it easier to change their form, add extra
8374 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8378 *) Add to configuration table a new entry that can specify an alternative
8379 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8380 according to Mark Crispin <MRC@Panda.COM>.
8384 *) DES CBC did not update the IV. Weird.
8387 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8388 Changing the behaviour of the former might break existing programs --
8389 where IV updating is needed, des_ncbc_encrypt can be used.
8392 *) When bntest is run from "make test" it drives bc to check its
8393 calculations, as well as internally checking them. If an internal check
8394 fails, it needs to cause bc to give a non-zero result or make test carries
8395 on without noticing the failure. Fixed.
8398 *) DES library cleanups.
8401 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8402 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8403 ciphers. NOTE: although the key derivation function has been verified
8404 against some published test vectors it has not been extensively tested
8405 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8409 *) Instead of "mkdir -p", which is not fully portable, use new
8410 Perl script "util/mkdir-p.pl".
8413 *) Rewrite the way password based encryption (PBE) is handled. It used to
8414 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8415 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8416 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8417 the 'parameter' field of the AlgorithmIdentifier is passed to the
8418 underlying key generation function so it must do its own ASN1 parsing.
8419 This has also changed the EVP_PBE_CipherInit() function which now has a
8420 'parameter' argument instead of literal salt and iteration count values
8421 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8424 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8425 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8426 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8427 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8428 value was just used as a "magic string" and not used directly its
8429 value doesn't matter.
8432 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8436 *) "linux-sparc64" configuration (ultrapenguin).
8437 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8438 "linux-sparc" configuration.
8439 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8441 *) config now generates no-xxx options for missing ciphers.
8444 *) Support the EBCDIC character set (work in progress).
8445 File ebcdic.c not yet included because it has a different license.
8446 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8448 *) Support BS2000/OSD-POSIX.
8449 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8451 *) Make callbacks for key generation use void * instead of char *.
8454 *) Make S/MIME samples compile (not yet tested).
8457 *) Additional typesafe stacks.
8460 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8464 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8466 *) New configuration variant "sco5-gcc".
8468 *) Updated some demos.
8469 [Sean O Riordain, Wade Scholine]
8471 *) Add missing BIO_free at exit of pkcs12 application.
8474 *) Fix memory leak in conf.c.
8477 *) Updates for Win32 to assembler version of MD5.
8480 *) Set #! path to perl in apps/der_chop to where we found it
8481 instead of using a fixed path.
8484 *) SHA library changes for irix64-mips4-cc.
8487 *) Improvements for VMS support.
8491 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8493 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8494 This also avoids the problems with SC4.2 and unpatched SC5.
8495 [Andy Polyakov <appro@fy.chalmers.se>]
8497 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8498 These are required because of the typesafe stack would otherwise break
8499 existing code. If old code used a structure member which used to be STACK
8500 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8501 sk_num or sk_value it would produce an error because the num, data members
8502 are not present in STACK_OF. Now it just produces a warning. sk_set
8503 replaces the old method of assigning a value to sk_value
8504 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8505 that does this will no longer work (and should use sk_set instead) but
8506 this could be regarded as a "questionable" behaviour anyway.
8509 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8510 correctly handle encrypted S/MIME data.
8513 *) Change type of various DES function arguments from des_cblock
8514 (which means, in function argument declarations, pointer to char)
8515 to des_cblock * (meaning pointer to array with 8 char elements),
8516 which allows the compiler to do more typechecking; it was like
8517 that back in SSLeay, but with lots of ugly casts.
8519 Introduce new type const_des_cblock.
8522 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8523 problems: find RecipientInfo structure that matches recipient certificate
8524 and initialise the ASN1 structures properly based on passed cipher.
8527 *) Belatedly make the BN tests actually check the results.
8530 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8531 to and from BNs: it was completely broken. New compilation option
8532 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8533 key elements as negative integers.
8536 *) Reorganize and speed up MD5.
8537 [Andy Polyakov <appro@fy.chalmers.se>]
8540 [Richard Levitte <richard@levitte.org>]
8542 *) New option -out to asn1parse to allow the parsed structure to be
8543 output to a file. This is most useful when combined with the -strparse
8544 option to examine the output of things like OCTET STRINGS.
8547 *) Make SSL library a little more fool-proof by not requiring any longer
8548 that SSL_set_{accept,connect}_state be called before
8549 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8550 in many applications because usually everything *appeared* to work as
8551 intended anyway -- now it really works as intended).
8554 *) Move openssl.cnf out of lib/.
8557 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8558 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8559 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8560 [Ralf S. Engelschall]
8562 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8563 handle PKCS#7 enveloped data properly.
8564 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8566 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8567 copying pointers. The cert_st handling is changed by this in
8568 various ways (and thus what used to be known as ctx->default_cert
8569 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8570 any longer when s->cert does not give us what we need).
8571 ssl_cert_instantiate becomes obsolete by this change.
8572 As soon as we've got the new code right (possibly it already is?),
8573 we have solved a couple of bugs of the earlier code where s->cert
8574 was used as if it could not have been shared with other SSL structures.
8576 Note that using the SSL API in certain dirty ways now will result
8577 in different behaviour than observed with earlier library versions:
8578 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8579 does not influence s as it used to.
8581 In order to clean up things more thoroughly, inside SSL_SESSION
8582 we don't use CERT any longer, but a new structure SESS_CERT
8583 that holds per-session data (if available); currently, this is
8584 the peer's certificate chain and, for clients, the server's certificate
8585 and temporary key. CERT holds only those values that can have
8586 meaningful defaults in an SSL_CTX.
8589 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8590 from the internal representation. Various PKCS#7 fixes: remove some
8591 evil casts and set the enc_dig_alg field properly based on the signing
8595 *) Allow PKCS#12 password to be set from the command line or the
8596 environment. Let 'ca' get its config file name from the environment
8597 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8601 *) Allow certificate policies extension to use an IA5STRING for the
8602 organization field. This is contrary to the PKIX definition but
8603 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8607 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8608 without disallowing inline assembler and the like for non-pedantic builds.
8611 *) Support Borland C++ builder.
8612 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8617 *) SHA-1 cleanups and performance enhancements.
8618 [Andy Polyakov <appro@fy.chalmers.se>]
8620 *) Sparc v8plus assembler for the bignum library.
8621 [Andy Polyakov <appro@fy.chalmers.se>]
8623 *) Accept any -xxx and +xxx compiler options in Configure.
8626 *) Update HPUX configuration.
8629 *) Add missing sk_<type>_unshift() function to safestack.h
8630 [Ralf S. Engelschall]
8632 *) New function SSL_CTX_use_certificate_chain_file that sets the
8633 "extra_cert"s in addition to the certificate. (This makes sense
8634 only for "PEM" format files, as chains as a whole are not
8638 *) Support verify_depth from the SSL API.
8639 x509_vfy.c had what can be considered an off-by-one-error:
8640 Its depth (which was not part of the external interface)
8641 was actually counting the number of certificates in a chain;
8642 now it really counts the depth.
8645 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8646 instead of X509err, which often resulted in confusing error
8647 messages since the error codes are not globally unique
8648 (e.g. an alleged error in ssl3_accept when a certificate
8649 didn't match the private key).
8651 *) New function SSL_CTX_set_session_id_context that allows to set a default
8652 value (so that you don't need SSL_set_session_id_context for each
8653 connection using the SSL_CTX).
8656 *) OAEP decoding bug fix.
8659 *) Support INSTALL_PREFIX for package builders, as proposed by
8663 *) New Configure options "threads" and "no-threads". For systems
8664 where the proper compiler options are known (currently Solaris
8665 and Linux), "threads" is the default.
8668 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8671 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8672 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8673 such as /usr/local/bin.
8676 *) "make linux-shared" to build shared libraries.
8677 [Niels Poppe <niels@netbox.org>]
8679 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8682 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8683 extension adding in x509 utility.
8686 *) Remove NOPROTO sections and error code comments.
8689 *) Partial rewrite of the DEF file generator to now parse the ANSI
8693 *) New Configure options --prefix=DIR and --openssldir=DIR.
8696 *) Complete rewrite of the error code script(s). It is all now handled
8697 by one script at the top level which handles error code gathering,
8698 header rewriting and C source file generation. It should be much better
8699 than the old method: it now uses a modified version of Ulf's parser to
8700 read the ANSI prototypes in all header files (thus the old K&R definitions
8701 aren't needed for error creation any more) and do a better job of
8702 translating function codes into names. The old 'ASN1 error code imbedded
8703 in a comment' is no longer necessary and it doesn't use .err files which
8704 have now been deleted. Also the error code call doesn't have to appear all
8705 on one line (which resulted in some large lines...).
8708 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8711 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8712 0 (which usually indicates a closed connection), but continue reading.
8715 *) Fix some race conditions.
8718 *) Add support for CRL distribution points extension. Add Certificate
8719 Policies and CRL distribution points documentation.
8722 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8725 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8726 8 of keying material. Merlin has also confirmed interop with this fix
8727 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8728 [Merlin Hughes <merlin@baltimore.ie>]
8730 *) Fix lots of warnings.
8731 [Richard Levitte <levitte@stacken.kth.se>]
8733 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8734 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8735 [Richard Levitte <levitte@stacken.kth.se>]
8737 *) Fix problems with sizeof(long) == 8.
8738 [Andy Polyakov <appro@fy.chalmers.se>]
8740 *) Change functions to ANSI C.
8743 *) Fix typos in error codes.
8744 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8746 *) Remove defunct assembler files from Configure.
8749 *) SPARC v8 assembler BIGNUM implementation.
8750 [Andy Polyakov <appro@fy.chalmers.se>]
8752 *) Support for Certificate Policies extension: both print and set.
8753 Various additions to support the r2i method this uses.
8756 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8757 return a const string when you are expecting an allocated buffer.
8760 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8761 types DirectoryString and DisplayText.
8764 *) Add code to allow r2i extensions to access the configuration database,
8765 add an LHASH database driver and add several ctx helper functions.
8768 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8769 fail when they extended the size of a BIGNUM.
8772 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8773 support typesafe stack.
8776 *) Fix typo in SSL_[gs]et_options().
8777 [Nils Frostberg <nils@medcom.se>]
8779 *) Delete various functions and files that belonged to the (now obsolete)
8780 old X509V3 handling code.
8783 *) New Configure option "rsaref".
8786 *) Don't auto-generate pem.h.
8789 *) Introduce type-safe ASN.1 SETs.
8792 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8793 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8795 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8796 that links with OpenSSL (well at least cause lots of warnings), but fear
8797 not: the conversion is trivial, and it eliminates loads of evil casts. A
8798 few STACKed things have been converted already. Feel free to convert more.
8799 In the fullness of time, I'll do away with the STACK type altogether.
8802 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8803 specified in <certfile> by updating the entry in the index.txt file.
8804 This way one no longer has to edit the index.txt file manually for
8805 revoking a certificate. The -revoke option does the gory details now.
8806 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8808 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8809 `-text' option at all and this way the `-noout -text' combination was
8810 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8811 [Ralf S. Engelschall]
8813 *) Make sure a corresponding plain text error message exists for the
8814 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8815 verify callback function determined that a certificate was revoked.
8816 [Ralf S. Engelschall]
8818 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8819 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8820 all available cipers including rc5, which was forgotten until now.
8821 In order to let the testing shell script know which algorithms
8822 are available, a new (up to now undocumented) command
8823 "openssl list-cipher-commands" is used.
8826 *) Bugfix: s_client occasionally would sleep in select() when
8827 it should have checked SSL_pending() first.
8830 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8831 the raw DSA values prior to ASN.1 encoding.
8834 *) Tweaks to Configure
8835 [Niels Poppe <niels@netbox.org>]
8837 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8841 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8844 *) New config option to avoid instructions that are illegal on the 80386.
8845 The default code is faster, but requires at least a 486.
8848 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8849 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8850 same as SSL2_VERSION anyway.
8853 *) New "-showcerts" option for s_client.
8856 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8857 application. Various cleanups and fixes.
8860 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8861 modify error routines to work internally. Add error codes and PBE init
8862 to library startup routines.
8865 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8866 packing functions to asn1 and evp. Changed function names and error
8867 codes along the way.
8870 *) PKCS12 integration: and so it begins... First of several patches to
8871 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8872 objects to objects.h
8875 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8876 and display support for Thawte strong extranet extension.
8879 *) Add LinuxPPC support.
8880 [Jeff Dubrule <igor@pobox.org>]
8882 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8883 bn_div_words in alpha.s.
8884 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8886 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8887 OAEP isn't supported when OpenSSL is built with RSAref.
8888 [Ulf Moeller <ulf@fitug.de>]
8890 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8891 so they no longer are missing under -DNOPROTO.
8892 [Soren S. Jorvang <soren@t.dk>]
8895 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8897 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8898 doesn't work when the session is reused. Coming soon!
8901 *) Fix a security hole, that allows sessions to be reused in the wrong
8902 context thus bypassing client cert protection! All software that uses
8903 client certs and session caches in multiple contexts NEEDS PATCHING to
8904 allow session reuse! A fuller solution is in the works.
8905 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8907 *) Some more source tree cleanups (removed obsolete files
8908 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8909 permission on "config" script to be executable) and a fix for the INSTALL
8911 [Ulf Moeller <ulf@fitug.de>]
8913 *) Remove some legacy and erroneous uses of malloc, free instead of
8915 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8917 *) Make rsa_oaep_test return non-zero on error.
8918 [Ulf Moeller <ulf@fitug.de>]
8920 *) Add support for native Solaris shared libraries. Configure
8921 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8922 if someone would make that last step automatic.
8923 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8925 *) ctx_size was not built with the right compiler during "make links". Fixed.
8928 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8929 except NULL ciphers". This means the default cipher list will no longer
8930 enable NULL ciphers. They need to be specifically enabled e.g. with
8931 the string "DEFAULT:eNULL".
8934 *) Fix to RSA private encryption routines: if p < q then it would
8935 occasionally produce an invalid result. This will only happen with
8936 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8939 *) Be less restrictive and allow also `perl util/perlpath.pl
8940 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8941 because this way one can also use an interpreter named `perl5' (which is
8942 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8943 installed as `perl').
8944 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8946 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8947 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8949 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8950 advapi32.lib to Win32 build and change the pem test comparision
8951 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8952 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8953 and crypto/des/ede_cbcm_enc.c.
8956 *) DES quad checksum was broken on big-endian architectures. Fixed.
8959 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8960 Win32 test batch file so it (might) work again. The Win32 test batch file
8961 is horrible: I feel ill....
8964 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8965 in e_os.h. Audit of header files to check ANSI and non ANSI
8966 sections: 10 functions were absent from non ANSI section and not exported
8967 from Windows DLLs. Fixed up libeay.num for new functions.
8970 *) Make `openssl version' output lines consistent.
8971 [Ralf S. Engelschall]
8973 *) Fix Win32 symbol export lists for BIO functions: Added
8974 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8975 to ms/libeay{16,32}.def.
8976 [Ralf S. Engelschall]
8978 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8979 fine under Unix and passes some trivial tests I've now added. But the
8980 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8981 added to make sure no one expects that this stuff really works in the
8982 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8983 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8985 [Ralf S. Engelschall]
8987 *) Fix the generation of two part addresses in perl.
8988 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8990 *) Add config entry for Linux on MIPS.
8991 [John Tobey <jtobey@channel1.com>]
8993 *) Make links whenever Configure is run, unless we are on Windoze.
8996 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8997 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9001 *) Add a useful kludge to allow package maintainers to specify compiler and
9002 other platforms details on the command line without having to patch the
9003 Configure script everytime: One now can use ``perl Configure
9004 <id>:<details>'', i.e. platform ids are allowed to have details appended
9005 to them (seperated by colons). This is treated as there would be a static
9006 pre-configured entry in Configure's %table under key <id> with value
9007 <details> and ``perl Configure <id>'' is called. So, when you want to
9008 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9009 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9010 now, which overrides the FreeBSD-elf entry on-the-fly.
9011 [Ralf S. Engelschall]
9013 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9016 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9017 on the `perl Configure ...' command line. This way one can compile
9018 OpenSSL libraries with Position Independent Code (PIC) which is needed
9019 for linking it into DSOs.
9020 [Ralf S. Engelschall]
9022 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9026 *) Cleaned up the LICENSE document: The official contact for any license
9027 questions now is the OpenSSL core team under openssl-core@openssl.org.
9028 And add a paragraph about the dual-license situation to make sure people
9029 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9030 to the OpenSSL toolkit.
9031 [Ralf S. Engelschall]
9033 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9034 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9035 Additonally cleaned up the `make links' target: Remove unnecessary
9036 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9037 to speed processing and no longer clutter the display with confusing
9038 stuff. Instead only the actually done links are displayed.
9039 [Ralf S. Engelschall]
9041 *) Permit null encryption ciphersuites, used for authentication only. It used
9042 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9043 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9047 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9048 signed attributes when verifying signatures (this would break them),
9049 the detached data encoding was wrong and public keys obtained using
9050 X509_get_pubkey() weren't freed.
9053 *) Add text documentation for the BUFFER functions. Also added a work around
9054 to a Win95 console bug. This was triggered by the password read stuff: the
9055 last character typed gets carried over to the next fread(). If you were
9056 generating a new cert request using 'req' for example then the last
9057 character of the passphrase would be CR which would then enter the first
9061 *) Added the new `Includes OpenSSL Cryptography Software' button as
9062 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9063 button and can be used by applications based on OpenSSL to show the
9064 relationship to the OpenSSL project.
9065 [Ralf S. Engelschall]
9067 *) Remove confusing variables in function signatures in files
9068 ssl/ssl_lib.c and ssl/ssl.h.
9069 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9071 *) Don't install bss_file.c under PREFIX/include/
9072 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9074 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9075 functions that return function pointers and has support for NT specific
9076 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9077 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9078 unsigned to signed types: this was killing the Win32 compile.
9081 *) Add new certificate file to stack functions,
9082 SSL_add_dir_cert_subjects_to_stack() and
9083 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9084 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9085 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9086 This means that Apache-SSL and similar packages don't have to mess around
9087 to add as many CAs as they want to the preferred list.
9090 *) Experiment with doxygen documentation. Currently only partially applied to
9092 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9093 openssl.doxy as the configuration file.
9096 *) Get rid of remaining C++-style comments which strict C compilers hate.
9097 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9099 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9100 compiled in by default: it has problems with large keys.
9103 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9104 DH private keys and/or callback functions which directly correspond to
9105 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9106 is needed for applications which have to configure certificates on a
9107 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9109 For the RSA certificate situation is makes no difference, but
9110 for the DSA certificate situation this fixes the "no shared cipher"
9111 problem where the OpenSSL cipher selection procedure failed because the
9112 temporary keys were not overtaken from the context and the API provided
9113 no way to reconfigure them.
9114 The new functions now let applications reconfigure the stuff and they
9115 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9116 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9117 non-public-API function ssl_cert_instantiate() is used as a helper
9118 function and also to reduce code redundancy inside ssl_rsa.c.
9119 [Ralf S. Engelschall]
9121 *) Move s_server -dcert and -dkey options out of the undocumented feature
9122 area because they are useful for the DSA situation and should be
9123 recognized by the users.
9124 [Ralf S. Engelschall]
9126 *) Fix the cipher decision scheme for export ciphers: the export bits are
9127 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9128 SSL_EXP_MASK. So, the original variable has to be used instead of the
9129 already masked variable.
9130 [Richard Levitte <levitte@stacken.kth.se>]
9132 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9133 [Richard Levitte <levitte@stacken.kth.se>]
9135 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9136 from `int' to `unsigned int' because it's a length and initialized by
9137 EVP_DigestFinal() which expects an `unsigned int *'.
9138 [Richard Levitte <levitte@stacken.kth.se>]
9140 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9141 script. Instead use the usual Shell->Perl transition trick.
9142 [Ralf S. Engelschall]
9144 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9145 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9146 -noout -modulus' as it's already the case for `openssl rsa -noout
9147 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9148 currently the public key is printed (a decision which was already done by
9149 `openssl dsa -modulus' in the past) which serves a similar purpose.
9150 Additionally the NO_RSA no longer completely removes the whole -modulus
9151 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9153 [Ralf S. Engelschall]
9155 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9156 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9157 [Arne Ansper <arne@ats.cyber.ee>]
9159 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9160 to be added. Now both 'req' and 'ca' can use new objects defined in the
9164 *) Add cool BIO that does syslog (or event log on NT).
9165 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9167 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9168 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9169 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9170 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9173 *) Add preliminary config info for new extension code.
9176 *) Make RSA_NO_PADDING really use no padding.
9177 [Ulf Moeller <ulf@fitug.de>]
9179 *) Generate errors when private/public key check is done.
9182 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9183 for some CRL extensions and new objects added.
9186 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9187 key usage extension and fuller support for authority key id.
9190 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9191 padding method for RSA, which is recommended for new applications in PKCS
9192 #1 v2.0 (RFC 2437, October 1998).
9193 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9194 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9195 against Bleichbacher's attack on RSA.
9196 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9199 *) Updates to the new SSL compression code
9200 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9202 *) Fix so that the version number in the master secret, when passed
9203 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9204 (because the server will not accept higher), that the version number
9205 is 0x03,0x01, not 0x03,0x00
9206 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9208 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9209 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9210 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9213 *) Support for RAW extensions where an arbitrary extension can be
9214 created by including its DER encoding. See apps/openssl.cnf for
9218 *) Make sure latest Perl versions don't interpret some generated C array
9219 code as Perl array code in the crypto/err/err_genc.pl script.
9220 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9222 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9223 not many people have the assembler. Various Win32 compilation fixes and
9224 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9228 *) Modify configure script 'Configure' to automatically create crypto/date.h
9229 file under Win32 and also build pem.h from pem.org. New script
9230 util/mkfiles.pl to create the MINFO file on environments that can't do a
9231 'make files': perl util/mkfiles.pl >MINFO should work.
9234 *) Major rework of DES function declarations, in the pursuit of correctness
9235 and purity. As a result, many evil casts evaporated, and some weirdness,
9236 too. You may find this causes warnings in your code. Zapping your evil
9237 casts will probably fix them. Mostly.
9240 *) Fix for a typo in asn1.h. Bug fix to object creation script
9241 obj_dat.pl. It considered a zero in an object definition to mean
9242 "end of object": none of the objects in objects.h have any zeros
9243 so it wasn't spotted.
9244 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9246 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9247 Masking (CBCM). In the absence of test vectors, the best I have been able
9248 to do is check that the decrypt undoes the encrypt, so far. Send me test
9249 vectors if you have them.
9252 *) Correct calculation of key length for export ciphers (too much space was
9253 allocated for null ciphers). This has not been tested!
9256 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9257 message is now correct (it understands "crypto" and "ssl" on its
9258 command line). There is also now an "update" option. This will update
9259 the util/ssleay.num and util/libeay.num files with any new functions.
9261 perl util/mkdef.pl crypto ssl update
9262 it will update them.
9265 *) Overhauled the Perl interface (perl/*):
9266 - ported BN stuff to OpenSSL's different BN library
9267 - made the perl/ source tree CVS-aware
9268 - renamed the package from SSLeay to OpenSSL (the files still contain
9269 their history because I've copied them in the repository)
9270 - removed obsolete files (the test scripts will be replaced
9271 by better Test::Harness variants in the future)
9272 [Ralf S. Engelschall]
9274 *) First cut for a very conservative source tree cleanup:
9275 1. merge various obsolete readme texts into doc/ssleay.txt
9276 where we collect the old documents and readme texts.
9277 2. remove the first part of files where I'm already sure that we no
9278 longer need them because of three reasons: either they are just temporary
9279 files which were left by Eric or they are preserved original files where
9280 I've verified that the diff is also available in the CVS via "cvs diff
9281 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9282 the crypto/md/ stuff).
9283 [Ralf S. Engelschall]
9285 *) More extension code. Incomplete support for subject and issuer alt
9286 name, issuer and authority key id. Change the i2v function parameters
9287 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9288 what that's for :-) Fix to ASN1 macro which messed up
9289 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9292 *) Preliminary support for ENUMERATED type. This is largely copied from the
9296 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9297 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9299 *) Make sure `make rehash' target really finds the `openssl' program.
9300 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9302 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9303 like to hear about it if this slows down other processors.
9306 *) Add CygWin32 platform information to Configure script.
9307 [Alan Batie <batie@aahz.jf.intel.com>]
9309 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9310 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9312 *) New program nseq to manipulate netscape certificate sequences
9315 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9319 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9320 but the BN code had some problems that would cause failures when
9321 doing certificate verification and some other functions.
9322 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9324 *) Add ASN1 and PEM code to support netscape certificate sequences.
9327 *) Add ASN1 and PEM code to support netscape certificate sequences.
9330 *) Add several PKIX and private extended key usage OIDs.
9333 *) Modify the 'ca' program to handle the new extension code. Modify
9334 openssl.cnf for new extension format, add comments.
9337 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9338 and add a sample to openssl.cnf so req -x509 now adds appropriate
9342 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9343 error code, add initial support to X509_print() and x509 application.
9346 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9347 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9348 stuff is currently isolated and isn't even compiled yet.
9351 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9352 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9353 Removed the versions check from X509 routines when loading extensions:
9354 this allows certain broken certificates that don't set the version
9355 properly to be processed.
9358 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9359 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9360 can still be regenerated with "make depend".
9363 *) Spelling mistake in C version of CAST-128.
9364 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9366 *) Changes to the error generation code. The perl script err-code.pl
9367 now reads in the old error codes and retains the old numbers, only
9368 adding new ones if necessary. It also only changes the .err files if new
9369 codes are added. The makefiles have been modified to only insert errors
9370 when needed (to avoid needlessly modifying header files). This is done
9371 by only inserting errors if the .err file is newer than the auto generated
9372 C file. To rebuild all the error codes from scratch (the old behaviour)
9373 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9374 or delete all the .err files.
9377 *) CAST-128 was incorrectly implemented for short keys. The C version has
9378 been fixed, but is untested. The assembler versions are also fixed, but
9379 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9380 to regenerate it if needed.
9381 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9382 Hagino <itojun@kame.net>]
9384 *) File was opened incorrectly in randfile.c.
9385 [Ulf Möller <ulf@fitug.de>]
9387 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9388 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9389 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9390 al: it's just almost always a UTCTime. Note this patch adds new error
9391 codes so do a "make errors" if there are problems.
9394 *) Correct Linux 1 recognition in config.
9395 [Ulf Möller <ulf@fitug.de>]
9397 *) Remove pointless MD5 hash when using DSA keys in ca.
9398 [Anonymous <nobody@replay.com>]
9400 *) Generate an error if given an empty string as a cert directory. Also
9401 generate an error if handed NULL (previously returned 0 to indicate an
9402 error, but didn't set one).
9403 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9405 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9408 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9409 parameters. This was causing a warning which killed off the Win32 compile.
9412 *) Remove C++ style comments from crypto/bn/bn_local.h.
9413 [Neil Costigan <neil.costigan@celocom.com>]
9415 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9416 based on a text string, looking up short and long names and finally
9417 "dot" format. The "dot" format stuff didn't work. Added new function
9418 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9419 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9420 OID is not part of the table.
9423 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9424 X509_LOOKUP_by_alias().
9427 *) Sort openssl functions by name.
9430 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9431 encryption from sample DSA keys (in case anyone is interested the password
9435 *) Make _all_ *_free functions accept a NULL pointer.
9436 [Frans Heymans <fheymans@isaserver.be>]
9438 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9440 [Anonymous <nobody@replay.com>]
9442 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9443 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9445 *) Don't blow it for numeric -newkey arguments to apps/req.
9446 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9448 *) Temp key "for export" tests were wrong in s3_srvr.c.
9449 [Anonymous <nobody@replay.com>]
9451 *) Add prototype for temp key callback functions
9452 SSL_CTX_set_tmp_{rsa,dh}_callback().
9455 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9456 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9459 *) X509_name_add_entry() freed the wrong thing after an error.
9460 [Arne Ansper <arne@ats.cyber.ee>]
9462 *) rsa_eay.c would attempt to free a NULL context.
9463 [Arne Ansper <arne@ats.cyber.ee>]
9465 *) BIO_s_socket() had a broken should_retry() on Windoze.
9466 [Arne Ansper <arne@ats.cyber.ee>]
9468 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9469 [Arne Ansper <arne@ats.cyber.ee>]
9471 *) Make sure the already existing X509_STORE->depth variable is initialized
9472 in X509_STORE_new(), but document the fact that this variable is still
9473 unused in the certificate verification process.
9474 [Ralf S. Engelschall]
9476 *) Fix the various library and apps files to free up pkeys obtained from
9477 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9480 *) Fix reference counting in X509_PUBKEY_get(). This makes
9481 demos/maurice/example2.c work, amongst others, probably.
9482 [Steve Henson and Ben Laurie]
9484 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9485 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9486 are no longer created. This way we have a single and consistent command
9487 line interface `openssl <command>', similar to `cvs <command>'.
9488 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9490 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9491 BIT STRING wrapper always have zero unused bits.
9494 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9497 *) Make the top-level INSTALL documentation easier to understand.
9500 *) Makefiles updated to exit if an error occurs in a sub-directory
9501 make (including if user presses ^C) [Paul Sutton]
9503 *) Make Montgomery context stuff explicit in RSA data structure.
9506 *) Fix build order of pem and err to allow for generated pem.h.
9509 *) Fix renumbering bug in X509_NAME_delete_entry().
9512 *) Enhanced the err-ins.pl script so it makes the error library number
9513 global and can add a library name. This is needed for external ASN1 and
9514 other error libraries.
9517 *) Fixed sk_insert which never worked properly.
9520 *) Fix ASN1 macros so they can handle indefinite length construted
9521 EXPLICIT tags. Some non standard certificates use these: they can now
9525 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9526 into a single doc/ssleay.txt bundle. This way the information is still
9527 preserved but no longer messes up this directory. Now it's new room for
9528 the new set of documenation files.
9529 [Ralf S. Engelschall]
9531 *) SETs were incorrectly DER encoded. This was a major pain, because they
9532 shared code with SEQUENCEs, which aren't coded the same. This means that
9533 almost everything to do with SETs or SEQUENCEs has either changed name or
9534 number of arguments.
9535 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9537 *) Fix test data to work with the above.
9540 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9541 was already fixed by Eric for 0.9.1 it seems.
9542 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9544 *) Autodetect FreeBSD3.
9547 *) Fix various bugs in Configure. This affects the following platforms:
9551 unixware-2.0-pentium
9555 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9556 before they are needed.
9559 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9563 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9565 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9566 changed SSLeay to OpenSSL in version strings.
9567 [Ralf S. Engelschall]
9569 *) Some fixups to the top-level documents.
9572 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9573 because the symlink to include/ was missing.
9574 [Ralf S. Engelschall]
9576 *) Incorporated the popular no-RSA/DSA-only patches
9577 which allow to compile a RSA-free SSLeay.
9578 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9580 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9581 when "ssleay" is still not found.
9582 [Ralf S. Engelschall]
9584 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9585 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9587 *) Updated the README file.
9588 [Ralf S. Engelschall]
9590 *) Added various .cvsignore files in the CVS repository subdirs
9591 to make a "cvs update" really silent.
9592 [Ralf S. Engelschall]
9594 *) Recompiled the error-definition header files and added
9595 missing symbols to the Win32 linker tables.
9596 [Ralf S. Engelschall]
9598 *) Cleaned up the top-level documents;
9599 o new files: CHANGES and LICENSE
9600 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9601 o merged COPYRIGHT into LICENSE
9602 o removed obsolete TODO file
9603 o renamed MICROSOFT to INSTALL.W32
9604 [Ralf S. Engelschall]
9606 *) Removed dummy files from the 0.9.1b source tree:
9607 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9608 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9609 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9610 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9611 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9612 [Ralf S. Engelschall]
9614 *) Added various platform portability fixes.
9617 *) The Genesis of the OpenSSL rpject:
9618 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9619 Young and Tim J. Hudson created while they were working for C2Net until
9621 [The OpenSSL Project]
9624 Changes between 0.9.0b and 0.9.1b [not released]
9626 *) Updated a few CA certificates under certs/
9629 *) Changed some BIGNUM api stuff.
9632 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9633 DGUX x86, Linux Alpha, etc.
9636 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9637 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9641 *) Add -strparse option to asn1pars program which parses nested
9643 [Dr Stephen Henson <shenson@bigfoot.com>]
9645 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9648 *) DSA fix for "ca" program.
9651 *) Added "-genkey" option to "dsaparam" program.
9654 *) Added RIPE MD160 (rmd160) message digest.
9657 *) Added -a (all) option to "ssleay version" command.
9660 *) Added PLATFORM define which is the id given to Configure.
9663 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9666 *) Extended the ASN.1 parser routines.
9669 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9672 *) Added a BN_CTX to the BN library.
9675 *) Fixed the weak key values in DES library
9678 *) Changed API in EVP library for cipher aliases.
9681 *) Added support for RC2/64bit cipher.
9684 *) Converted the lhash library to the crypto/mem.c functions.
9687 *) Added more recognized ASN.1 object ids.
9690 *) Added more RSA padding checks for SSL/TLS.
9693 *) Added BIO proxy/filter functionality.
9696 *) Added extra_certs to SSL_CTX which can be used
9697 send extra CA certificates to the client in the CA cert chain sending
9698 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9701 *) Now Fortezza is denied in the authentication phase because
9702 this is key exchange mechanism is not supported by SSLeay at all.
9705 *) Additional PKCS1 checks.
9708 *) Support the string "TLSv1" for all TLS v1 ciphers.
9711 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9712 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9715 *) Fixed a few memory leaks.
9718 *) Fixed various code and comment typos.
9721 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9722 bytes sent in the client random.
9723 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob