5 Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
7 *) Added support for OCB mode. OpenSSL has been granted a patent license
8 compatible with the OpenSSL license for use of OCB. Details are available
9 at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
10 for OCB can be removed by calling config with no-ocb.
12 *) SSLv2 support has been removed. It still supports receiving a SSLv2
13 compatible client hello.
16 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
17 done while fixing the error code for the key-too-small case.
18 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
20 *) Remove BEOS and BEOS_R5 code.
23 *) Experimental support for a new, fast, unbiased prime candidate generator,
24 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
25 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
27 *) New output format NSS in the sess_id command line tool. This allows
28 exporting the session id and the master key in NSS keylog format.
29 [Martin Kaiser <martin@kaiser.cx>]
31 *) Harmonize version and its documentation. -f flag is used to display
33 [mancha <mancha1@zoho.com>]
35 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
37 [mancha <mancha1@zoho.com>]
39 *) Fix some double frees. These are not thought to be exploitable.
40 [mancha <mancha1@zoho.com>]
42 *) A missing bounds check in the handling of the TLS heartbeat extension
43 can be used to reveal up to 64k of memory to a connected client or
46 Thanks for Neel Mehta of Google Security for discovering this bug and to
47 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
48 preparing the fix (CVE-2014-0160)
49 [Adam Langley, Bodo Moeller]
51 *) Fix for the attack described in the paper "Recovering OpenSSL
52 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
53 by Yuval Yarom and Naomi Benger. Details can be obtained from:
54 http://eprint.iacr.org/2014/140
56 Thanks to Yuval Yarom and Naomi Benger for discovering this
57 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
58 [Yuval Yarom and Naomi Benger]
60 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
61 this fixes a limitation in previous versions of OpenSSL.
64 *) Experimental encrypt-then-mac support.
66 Experimental support for encrypt then mac from
67 draft-gutmann-tls-encrypt-then-mac-02.txt
69 To enable it set the appropriate extension number (0x42 for the test
70 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
72 For non-compliant peers (i.e. just about everything) this should have no
75 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
79 *) Add EVP support for key wrapping algorithms, to avoid problems with
80 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
81 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
82 algorithms and include tests cases.
85 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
89 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
90 MGF1 digest and OAEP label.
93 *) Make openssl verify return errors.
94 [Chris Palmer <palmer@google.com> and Ben Laurie]
96 *) New function ASN1_TIME_diff to calculate the difference between two
97 ASN1_TIME structures or one structure and the current time.
100 *) Update fips_test_suite to support multiple command line options. New
101 test to induce all self test errors in sequence and check expected
105 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
106 sign or verify all in one operation.
109 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
110 test programs and fips_test_suite. Includes functionality to parse
111 the minimal script output of fipsalgest.pl directly.
114 *) Add authorisation parameter to FIPS_module_mode_set().
117 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
120 *) Use separate DRBG fields for internal and external flags. New function
121 FIPS_drbg_health_check() to perform on demand health checking. Add
122 generation tests to fips_test_suite with reduced health check interval to
123 demonstrate periodic health checking. Add "nodh" option to
124 fips_test_suite to skip very slow DH test.
127 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
131 *) More extensive health check for DRBG checking many more failure modes.
132 New function FIPS_selftest_drbg_all() to handle every possible DRBG
133 combination: call this in fips_test_suite.
136 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
137 and POST to handle Dual EC cases.
140 *) Add support for canonical generation of DSA parameter 'g'. See
143 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
144 POST to handle HMAC cases.
147 *) Add functions FIPS_module_version() and FIPS_module_version_text()
148 to return numerical and string versions of the FIPS module number.
151 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
152 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
153 outside the validated module in the FIPS capable OpenSSL.
156 *) Minor change to DRBG entropy callback semantics. In some cases
157 there is no multiple of the block length between min_len and
158 max_len. Allow the callback to return more than max_len bytes
159 of entropy but discard any extra: it is the callback's responsibility
160 to ensure that the extra data discarded does not impact the
161 requested amount of entropy.
164 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
165 information in FIPS186-3, SP800-57 and SP800-131A.
168 *) CCM support via EVP. Interface is very similar to GCM case except we
169 must supply all data in one chunk (i.e. no update, final) and the
170 message length must be supplied if AAD is used. Add algorithm test
174 *) Initial version of POST overhaul. Add POST callback to allow the status
175 of POST to be monitored and/or failures induced. Modify fips_test_suite
176 to use callback. Always run all selftests even if one fails.
179 *) XTS support including algorithm test driver in the fips_gcmtest program.
180 Note: this does increase the maximum key length from 32 to 64 bytes but
181 there should be no binary compatibility issues as existing applications
182 will never use XTS mode.
185 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
186 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
187 performs algorithm blocking for unapproved PRNG types. Also do not
188 set PRNG type in FIPS_mode_set(): leave this to the application.
189 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
190 the standard OpenSSL PRNG: set additional data to a date time vector.
193 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
194 This shouldn't present any incompatibility problems because applications
195 shouldn't be using these directly and any that are will need to rethink
196 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
199 *) Extensive self tests and health checking required by SP800-90 DRBG.
200 Remove strength parameter from FIPS_drbg_instantiate and always
201 instantiate at maximum supported strength.
204 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
207 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
210 *) New function DH_compute_key_padded() to compute a DH key and pad with
211 leading zeroes if needed: this complies with SP800-56A et al.
214 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
215 anything, incomplete, subject to change and largely untested at present.
218 *) Modify fipscanisteronly build option to only build the necessary object
219 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
222 *) Add experimental option FIPSSYMS to give all symbols in
223 fipscanister.o and FIPS or fips prefix. This will avoid
224 conflicts with future versions of OpenSSL. Add perl script
225 util/fipsas.pl to preprocess assembly language source files
226 and rename any affected symbols.
229 *) Add selftest checks and algorithm block of non-fips algorithms in
230 FIPS mode. Remove DES2 from selftests.
233 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
234 return internal method without any ENGINE dependencies. Add new
235 tiny fips sign and verify functions.
238 *) New build option no-ec2m to disable characteristic 2 code.
241 *) New build option "fipscanisteronly". This only builds fipscanister.o
242 and (currently) associated fips utilities. Uses the file Makefile.fips
243 instead of Makefile.org as the prototype.
246 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
247 Update fips_gcmtest to use IV generator.
250 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
251 setting output buffer to NULL. The *Final function must be
252 called although it will not retrieve any additional data. The tag
253 can be set or retrieved with a ctrl. The IV length is by default 12
254 bytes (96 bits) but can be set to an alternative value. If the IV
255 length exceeds the maximum IV length (currently 16 bytes) it cannot be
259 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
260 underlying do_cipher function handles all cipher semantics itself
261 including padding and finalisation. This is useful if (for example)
262 an ENGINE cipher handles block padding itself. The behaviour of
263 do_cipher is subtly changed if this flag is set: the return value
264 is the number of characters written to the output buffer (zero is
265 no longer an error code) or a negative error code. Also if the
266 input buffer is NULL and length 0 finalisation should be performed.
269 *) If a candidate issuer certificate is already part of the constructed
270 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
273 *) Improve forward-security support: add functions
275 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
276 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
278 for use by SSL/TLS servers; the callback function will be called whenever a
279 new session is created, and gets to decide whether the session may be
280 cached to make it resumable (return 0) or not (return 1). (As by the
281 SSL/TLS protocol specifications, the session_id sent by the server will be
282 empty to indicate that the session is not resumable; also, the server will
283 not generate RFC 4507 (RFC 5077) session tickets.)
285 A simple reasonable callback implementation is to return is_forward_secure.
286 This parameter will be set to 1 or 0 depending on the ciphersuite selected
287 by the SSL/TLS server library, indicating whether it can provide forward
289 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
291 *) New -verify_name option in command line utilities to set verification
295 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
296 Add CMAC pkey methods.
299 *) Experimental renegotiation in s_server -www mode. If the client
300 browses /reneg connection is renegotiated. If /renegcert it is
301 renegotiated requesting a certificate.
304 *) Add an "external" session cache for debugging purposes to s_server. This
305 should help trace issues which normally are only apparent in deployed
306 multi-process servers.
309 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
310 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
311 BIO_set_cipher() and some obscure PEM functions were changed so they
312 can now return an error. The RAND changes required a change to the
313 RAND_METHOD structure.
316 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
317 a gcc attribute to warn if the result of a function is ignored. This
318 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
319 whose return value is often ignored.
322 Changes between 1.0.1k and 1.0.2 [xx XXX xxxx]
324 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
325 (other platforms pending).
326 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
328 *) Add support for the SignedCertificateTimestampList certificate and
329 OCSP response extensions from RFC6962.
332 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
333 for corner cases. (Certain input points at infinity could lead to
334 bogus results, with non-infinity inputs mapped to infinity too.)
337 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
338 This covers AES, SHA256/512 and GHASH. "Initial" means that most
339 common cases are optimized and there still is room for further
340 improvements. Vector Permutation AES for Altivec is also added.
343 *) Add support for little-endian ppc64 Linux target.
344 [Marcelo Cerri (IBM)]
346 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
347 SHA1, SHA256 and GHASH. "Initial" means that most common cases
348 are optimized and there still is room for further improvements.
349 Both 32- and 64-bit modes are supported.
350 [Andy Polyakov, Ard Biesheuvel (Linaro)]
352 *) Improved ARMv7 NEON support.
355 *) Support for SPARC Architecture 2011 crypto extensions, first
356 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
357 SHA256/512, MD5, GHASH and modular exponentiation.
358 [Andy Polyakov, David Miller]
360 *) Accelerated modular exponentiation for Intel processors, a.k.a.
362 [Shay Gueron & Vlad Krasnov (Intel Corp)]
364 *) Support for new and upcoming Intel processors, including AVX2,
365 BMI and SHA ISA extensions. This includes additional "stitched"
366 implementations, AESNI-SHA256 and GCM, and multi-buffer support
369 This work was sponsored by Intel Corp.
372 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
373 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
374 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
377 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
378 this fixes a limiation in previous versions of OpenSSL.
381 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
382 MGF1 digest and OAEP label.
385 *) Add EVP support for key wrapping algorithms, to avoid problems with
386 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
387 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
388 algorithms and include tests cases.
391 *) Add functions to allocate and set the fields of an ECDSA_METHOD
393 [Douglas E. Engert, Steve Henson]
395 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
396 difference in days and seconds between two tm or ASN1_TIME structures.
399 *) Add -rev test option to s_server to just reverse order of characters
400 received by client and send back to server. Also prints an abbreviated
401 summary of the connection parameters.
404 *) New option -brief for s_client and s_server to print out a brief summary
405 of connection parameters.
408 *) Add callbacks for arbitrary TLS extensions.
409 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
411 *) New option -crl_download in several openssl utilities to download CRLs
412 from CRLDP extension in certificates.
415 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
418 *) New function X509_CRL_diff to generate a delta CRL from the difference
419 of two full CRLs. Add support to "crl" utility.
422 *) New functions to set lookup_crls function and to retrieve
423 X509_STORE from X509_STORE_CTX.
426 *) Print out deprecated issuer and subject unique ID fields in
430 *) Extend OCSP I/O functions so they can be used for simple general purpose
431 HTTP as well as OCSP. New wrapper function which can be used to download
432 CRLs using the OCSP API.
435 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
438 *) SSL_CONF* functions. These provide a common framework for application
439 configuration using configuration files or command lines.
442 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
443 message callback and prints the results. Needs compile time option
444 "enable-ssl-trace". New options to s_client and s_server to enable
448 *) New ctrl and macro to retrieve supported points extensions.
449 Print out extension in s_server and s_client.
452 *) New functions to retrieve certificate signature and signature
456 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
460 *) New Suite B modes for TLS code. These use and enforce the requirements
461 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
462 only use Suite B curves. The Suite B modes can be set by using the
463 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
466 *) New chain verification flags for Suite B levels of security. Check
467 algorithms are acceptable when flags are set in X509_verify_cert.
470 *) Make tls1_check_chain return a set of flags indicating checks passed
471 by a certificate chain. Add additional tests to handle client
472 certificates: checks for matching certificate type and issuer name
476 *) If an attempt is made to use a signature algorithm not in the peer
477 preference list abort the handshake. If client has no suitable
478 signature algorithms in response to a certificate request do not
482 *) If server EC tmp key is not in client preference list abort handshake.
485 *) Add support for certificate stores in CERT structure. This makes it
486 possible to have different stores per SSL structure or one store in
487 the parent SSL_CTX. Include distint stores for certificate chain
488 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
489 to build and store a certificate chain in CERT structure: returing
490 an error if the chain cannot be built: this will allow applications
491 to test if a chain is correctly configured.
493 Note: if the CERT based stores are not set then the parent SSL_CTX
494 store is used to retain compatibility with existing behaviour.
498 *) New function ssl_set_client_disabled to set a ciphersuite disabled
499 mask based on the current session, check mask when sending client
500 hello and checking the requested ciphersuite.
503 *) New ctrls to retrieve and set certificate types in a certificate
504 request message. Print out received values in s_client. If certificate
505 types is not set with custom values set sensible values based on
506 supported signature algorithms.
509 *) Support for distinct client and server supported signature algorithms.
512 *) Add certificate callback. If set this is called whenever a certificate
513 is required by client or server. An application can decide which
514 certificate chain to present based on arbitrary criteria: for example
515 supported signature algorithms. Add very simple example to s_server.
516 This fixes many of the problems and restrictions of the existing client
517 certificate callback: for example you can now clear an existing
518 certificate and specify the whole chain.
521 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
522 the certificate can be used for (if anything). Set valid_flags field
523 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
524 to have similar checks in it.
526 Add new "cert_flags" field to CERT structure and include a "strict mode".
527 This enforces some TLS certificate requirements (such as only permitting
528 certificate signature algorithms contained in the supported algorithms
529 extension) which some implementations ignore: this option should be used
530 with caution as it could cause interoperability issues.
533 *) Update and tidy signature algorithm extension processing. Work out
534 shared signature algorithms based on preferences and peer algorithms
535 and print them out in s_client and s_server. Abort handshake if no
536 shared signature algorithms.
539 *) Add new functions to allow customised supported signature algorithms
540 for SSL and SSL_CTX structures. Add options to s_client and s_server
544 *) New function SSL_certs_clear() to delete all references to certificates
545 from an SSL structure. Before this once a certificate had been added
546 it couldn't be removed.
549 *) Integrate hostname, email address and IP address checking with certificate
550 verification. New verify options supporting checking in opensl utility.
553 *) Fixes and wildcard matching support to hostname and email checking
554 functions. Add manual page.
555 [Florian Weimer (Red Hat Product Security Team)]
557 *) New functions to check a hostname email or IP address against a
558 certificate. Add options x509 utility to print results of checks against
562 *) Fix OCSP checking.
563 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
565 *) Initial experimental support for explicitly trusted non-root CAs.
566 OpenSSL still tries to build a complete chain to a root but if an
567 intermediate CA has a trust setting included that is used. The first
568 setting is used: whether to trust (e.g., -addtrust option to the x509
572 *) Add -trusted_first option which attempts to find certificates in the
573 trusted store even if an untrusted chain is also supplied.
576 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
577 platform support for Linux and Android.
580 *) Support for linux-x32, ILP32 environment in x86_64 framework.
583 *) Experimental multi-implementation support for FIPS capable OpenSSL.
584 When in FIPS mode the approved implementations are used as normal,
585 when not in FIPS mode the internal unapproved versions are used instead.
586 This means that the FIPS capable OpenSSL isn't forced to use the
587 (often lower performance) FIPS implementations outside FIPS mode.
590 *) Transparently support X9.42 DH parameters when calling
591 PEM_read_bio_DHparameters. This means existing applications can handle
592 the new parameter format automatically.
595 *) Initial experimental support for X9.42 DH parameter format: mainly
596 to support use of 'q' parameter for RFC5114 parameters.
599 *) Add DH parameters from RFC5114 including test data to dhtest.
602 *) Support for automatic EC temporary key parameter selection. If enabled
603 the most preferred EC parameters are automatically used instead of
604 hardcoded fixed parameters. Now a server just has to call:
605 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
606 support ECDH and use the most appropriate parameters.
609 *) Enhance and tidy EC curve and point format TLS extension code. Use
610 static structures instead of allocation if default values are used.
611 New ctrls to set curves we wish to support and to retrieve shared curves.
612 Print out shared curves in s_server. New options to s_server and s_client
613 to set list of supported curves.
616 *) New ctrls to retrieve supported signature algorithms and
617 supported curve values as an array of NIDs. Extend openssl utility
618 to print out received values.
621 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
622 between NIDs and the more common NIST names such as "P-256". Enhance
623 ecparam utility and ECC method to recognise the NIST names for curves.
626 *) Enhance SSL/TLS certificate chain handling to support different
627 chains for each certificate instead of one chain in the parent SSL_CTX.
630 *) Support for fixed DH ciphersuite client authentication: where both
631 server and client use DH certificates with common parameters.
634 *) Support for fixed DH ciphersuites: those requiring DH server
638 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
640 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
641 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
642 X509_CINF_get_signature were reverted post internal team review.
644 Changes between 1.0.1j and 1.0.1k [xx XXX xxxx]
646 *) Do not resume sessions on the server if the negotiated protocol
647 version does not match the session's version. Resuming with a different
648 version, while not strictly forbidden by the RFC, is of questionable
649 sanity and breaks all known clients.
650 [David Benjamin, Emilia Käsper]
652 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
653 early CCS messages during renegotiation. (Note that because
654 renegotiation is encrypted, this early CCS was not exploitable.)
657 *) Tighten client-side session ticket handling during renegotiation:
658 ensure that the client only accepts a session ticket if the server sends
659 the extension anew in the ServerHello. Previously, a TLS client would
660 reuse the old extension state and thus accept a session ticket if one was
661 announced in the initial ServerHello.
663 Similarly, ensure that the client requires a session ticket if one
664 was advertised in the ServerHello. Previously, a TLS client would
665 ignore a missing NewSessionTicket message.
668 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
672 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
673 sends a carefully crafted handshake message, to cause OpenSSL to fail
674 to free up to 64k of memory causing a memory leak. This could be
675 exploited in a Denial Of Service attack. This issue affects OpenSSL
676 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
677 whether SRTP is used or configured. Implementations of OpenSSL that
678 have been compiled with OPENSSL_NO_SRTP defined are not affected.
680 The fix was developed by the OpenSSL team.
684 *) Session Ticket Memory Leak.
686 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
687 integrity of that ticket is first verified. In the event of a session
688 ticket integrity check failing, OpenSSL will fail to free memory
689 causing a memory leak. By sending a large number of invalid session
690 tickets an attacker could exploit this issue in a Denial Of Service
695 *) Build option no-ssl3 is incomplete.
697 When OpenSSL is configured with "no-ssl3" as a build option, servers
698 could accept and complete a SSL 3.0 handshake, and clients could be
699 configured to send them.
701 [Akamai and the OpenSSL team]
703 *) Add support for TLS_FALLBACK_SCSV.
704 Client applications doing fallback retries should call
705 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
707 [Adam Langley, Bodo Moeller]
709 *) Add additional DigestInfo checks.
711 Reencode DigestInto in DER and check against the original when
712 verifying RSA signature: this will reject any improperly encoded
713 DigestInfo structures.
715 Note: this is a precautionary measure and no attacks are currently known.
719 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
721 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
722 SRP code can be overrun an internal buffer. Add sanity check that
723 g, A, B < N to SRP code.
725 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
726 Group for discovering this issue.
730 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
731 TLS 1.0 instead of higher protocol versions when the ClientHello message
732 is badly fragmented. This allows a man-in-the-middle attacker to force a
733 downgrade to TLS 1.0 even if both the server and the client support a
734 higher protocol version, by modifying the client's TLS records.
736 Thanks to David Benjamin and Adam Langley (Google) for discovering and
737 researching this issue.
741 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
742 to a denial of service attack. A malicious server can crash the client
743 with a null pointer dereference (read) by specifying an anonymous (EC)DH
744 ciphersuite and sending carefully crafted handshake messages.
746 Thanks to Felix Gröbert (Google) for discovering and researching this
751 *) By sending carefully crafted DTLS packets an attacker could cause openssl
752 to leak memory. This can be exploited through a Denial of Service attack.
753 Thanks to Adam Langley for discovering and researching this issue.
757 *) An attacker can force openssl to consume large amounts of memory whilst
758 processing DTLS handshake messages. This can be exploited through a
759 Denial of Service attack.
760 Thanks to Adam Langley for discovering and researching this issue.
764 *) An attacker can force an error condition which causes openssl to crash
765 whilst processing DTLS packets due to memory being freed twice. This
766 can be exploited through a Denial of Service attack.
767 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
772 *) If a multithreaded client connects to a malicious server using a resumed
773 session and the server sends an ec point format extension it could write
774 up to 255 bytes to freed memory.
776 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
781 *) A malicious server can crash an OpenSSL client with a null pointer
782 dereference (read) by specifying an SRP ciphersuite even though it was not
783 properly negotiated with the client. This can be exploited through a
784 Denial of Service attack.
786 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
787 discovering and researching this issue.
791 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
792 X509_name_oneline, X509_name_print_ex et al. to leak some information
793 from the stack. Applications may be affected if they echo pretty printing
794 output to the attacker.
796 Thanks to Ivan Fratric (Google) for discovering this issue.
798 [Emilia Käsper, and Steve Henson]
800 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
801 for corner cases. (Certain input points at infinity could lead to
802 bogus results, with non-infinity inputs mapped to infinity too.)
805 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
807 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
808 handshake can force the use of weak keying material in OpenSSL
809 SSL/TLS clients and servers.
811 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
812 researching this issue. (CVE-2014-0224)
813 [KIKUCHI Masashi, Steve Henson]
815 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
816 OpenSSL DTLS client the code can be made to recurse eventually crashing
819 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
821 [Imre Rad, Steve Henson]
823 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
824 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
825 client or server. This is potentially exploitable to run arbitrary
826 code on a vulnerable client or server.
828 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
829 [Jüri Aedla, Steve Henson]
831 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
832 are subject to a denial of service attack.
834 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
835 this issue. (CVE-2014-3470)
836 [Felix Gröbert, Ivan Fratric, Steve Henson]
838 *) Harmonize version and its documentation. -f flag is used to display
840 [mancha <mancha1@zoho.com>]
842 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
844 [mancha <mancha1@zoho.com>]
846 *) Fix some double frees. These are not thought to be exploitable.
847 [mancha <mancha1@zoho.com>]
849 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
851 *) A missing bounds check in the handling of the TLS heartbeat extension
852 can be used to reveal up to 64k of memory to a connected client or
855 Thanks for Neel Mehta of Google Security for discovering this bug and to
856 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
857 preparing the fix (CVE-2014-0160)
858 [Adam Langley, Bodo Moeller]
860 *) Fix for the attack described in the paper "Recovering OpenSSL
861 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
862 by Yuval Yarom and Naomi Benger. Details can be obtained from:
863 http://eprint.iacr.org/2014/140
865 Thanks to Yuval Yarom and Naomi Benger for discovering this
866 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
867 [Yuval Yarom and Naomi Benger]
869 *) TLS pad extension: draft-agl-tls-padding-03
871 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
872 TLS client Hello record length value would otherwise be > 255 and
873 less that 512 pad with a dummy extension containing zeroes so it
874 is at least 512 bytes long.
876 [Adam Langley, Steve Henson]
878 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
880 *) Fix for TLS record tampering bug. A carefully crafted invalid
881 handshake could crash OpenSSL with a NULL pointer exception.
882 Thanks to Anton Johansson for reporting this issues.
885 *) Keep original DTLS digest and encryption contexts in retransmission
886 structures so we can use the previous session parameters if they need
887 to be resent. (CVE-2013-6450)
890 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
891 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
892 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
893 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
894 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
895 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
896 [Rob Stradling, Adam Langley]
898 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
900 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
901 supporting platforms or when small records were transferred.
902 [Andy Polyakov, Steve Henson]
904 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
906 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
908 This addresses the flaw in CBC record processing discovered by
909 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
910 at: http://www.isg.rhul.ac.uk/tls/
912 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
913 Security Group at Royal Holloway, University of London
914 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
915 Emilia Käsper for the initial patch.
917 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
919 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
920 ciphersuites which can be exploited in a denial of service attack.
921 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
922 and detecting this bug and to Wolfgang Ettlinger
923 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
927 *) Return an error when checking OCSP signatures when key is NULL.
928 This fixes a DoS attack. (CVE-2013-0166)
931 *) Make openssl verify return errors.
932 [Chris Palmer <palmer@google.com> and Ben Laurie]
934 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
935 the right response is stapled. Also change SSL_get_certificate()
936 so it returns the certificate actually sent.
937 See http://rt.openssl.org/Ticket/Display.html?id=2836.
938 [Rob Stradling <rob.stradling@comodo.com>]
940 *) Fix possible deadlock when decoding public keys.
943 *) Don't use TLS 1.0 record version number in initial client hello
947 Changes between 1.0.1b and 1.0.1c [10 May 2012]
949 *) Sanity check record length before skipping explicit IV in TLS
950 1.2, 1.1 and DTLS to fix DoS attack.
952 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
953 fuzzing as a service testing platform.
957 *) Initialise tkeylen properly when encrypting CMS messages.
958 Thanks to Solar Designer of Openwall for reporting this issue.
961 *) In FIPS mode don't try to use composite ciphers as they are not
965 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
967 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
968 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
969 mean any application compiled against OpenSSL 1.0.0 headers setting
970 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
971 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
972 0x10000000L Any application which was previously compiled against
973 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
974 will need to be recompiled as a result. Letting be results in
975 inability to disable specifically TLS 1.1 and in client context,
976 in unlike event, limit maximum offered version to TLS 1.0 [see below].
979 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
980 disable just protocol X, but all protocols above X *if* there are
981 protocols *below* X still enabled. In more practical terms it means
982 that if application wants to disable TLS1.0 in favor of TLS1.1 and
983 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
984 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
988 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
990 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
991 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
992 in CRYPTO_realloc_clean.
994 Thanks to Tavis Ormandy, Google Security Team, for discovering this
995 issue and to Adam Langley <agl@chromium.org> for fixing it.
997 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
999 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1002 *) Workarounds for some broken servers that "hang" if a client hello
1003 record length exceeds 255 bytes.
1005 1. Do not use record version number > TLS 1.0 in initial client
1006 hello: some (but not all) hanging servers will now work.
1007 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1008 the number of ciphers sent in the client hello. This should be
1009 set to an even number, such as 50, for example by passing:
1010 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1011 Most broken servers should now work.
1012 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1013 TLS 1.2 client support entirely.
1016 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1019 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1021 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1022 STRING form instead of a DigestInfo.
1025 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1026 and the RSA_sign/RSA_verify functions. This was made more apparent when
1027 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1028 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1029 the correct format in RSA_verify so both forms transparently work.
1032 *) Some servers which support TLS 1.0 can choke if we initially indicate
1033 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1034 encrypted premaster secret. As a workaround use the maximum permitted
1035 client version in client hello, this should keep such servers happy
1036 and still work with previous versions of OpenSSL.
1039 *) Add support for TLS/DTLS heartbeats.
1040 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1042 *) Add support for SCTP.
1043 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1045 *) Improved PRNG seeding for VOS.
1046 [Paul Green <Paul.Green@stratus.com>]
1048 *) Extensive assembler packs updates, most notably:
1050 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1051 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1052 - x86_64: bit-sliced AES implementation;
1053 - ARM: NEON support, contemporary platforms optimizations;
1054 - s390x: z196 support;
1055 - *: GHASH and GF(2^m) multiplication implementations;
1059 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1060 (removal of unnecessary code)
1061 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1063 *) Add TLS key material exporter from RFC 5705.
1066 *) Add DTLS-SRTP negotiation from RFC 5764.
1069 *) Add Next Protocol Negotiation,
1070 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1071 disabled with a no-npn flag to config or Configure. Code donated
1073 [Adam Langley <agl@google.com> and Ben Laurie]
1075 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1076 NIST-P256, NIST-P521, with constant-time single point multiplication on
1077 typical inputs. Compiler support for the nonstandard type __uint128_t is
1078 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1079 Code made available under Apache License version 2.0.
1081 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1082 line to include this in your build of OpenSSL, and run "make depend" (or
1083 "make update"). This enables the following EC_METHODs:
1085 EC_GFp_nistp224_method()
1086 EC_GFp_nistp256_method()
1087 EC_GFp_nistp521_method()
1089 EC_GROUP_new_by_curve_name() will automatically use these (while
1090 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1092 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1094 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1095 all platforms. Move ssize_t definition from e_os.h to the public
1096 header file e_os2.h as it now appears in public header file cms.h
1099 *) New -sigopt option to the ca, req and x509 utilities. Additional
1100 signature parameters can be passed using this option and in
1104 *) Add RSA PSS signing function. This will generate and set the
1105 appropriate AlgorithmIdentifiers for PSS based on those in the
1106 corresponding EVP_MD_CTX structure. No application support yet.
1109 *) Support for companion algorithm specific ASN1 signing routines.
1110 New function ASN1_item_sign_ctx() signs a pre-initialised
1111 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
1112 the appropriate parameters.
1115 *) Add new algorithm specific ASN1 verification initialisation function
1116 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
1117 handling will be the same no matter what EVP_PKEY_METHOD is used.
1118 Add a PSS handler to support verification of PSS signatures: checked
1119 against a number of sample certificates.
1122 *) Add signature printing for PSS. Add PSS OIDs.
1123 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1125 *) Add algorithm specific signature printing. An individual ASN1 method
1126 can now print out signatures instead of the standard hex dump.
1128 More complex signatures (e.g. PSS) can print out more meaningful
1129 information. Include DSA version that prints out the signature
1133 *) Password based recipient info support for CMS library: implementing
1137 *) Split password based encryption into PBES2 and PBKDF2 functions. This
1138 neatly separates the code into cipher and PBE sections and is required
1139 for some algorithms that split PBES2 into separate pieces (such as
1140 password based CMS).
1143 *) Session-handling fixes:
1144 - Fix handling of connections that are resuming with a session ID,
1145 but also support Session Tickets.
1146 - Fix a bug that suppressed issuing of a new ticket if the client
1147 presented a ticket with an expired session.
1148 - Try to set the ticket lifetime hint to something reasonable.
1149 - Make tickets shorter by excluding irrelevant information.
1150 - On the client side, don't ignore renewed tickets.
1151 [Adam Langley, Bodo Moeller (Google)]
1153 *) Fix PSK session representation.
1156 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1158 This work was sponsored by Intel.
1161 *) Add GCM support to TLS library. Some custom code is needed to split
1162 the IV between the fixed (from PRF) and explicit (from TLS record)
1163 portions. This adds all GCM ciphersuites supported by RFC5288 and
1164 RFC5289. Generalise some AES* cipherstrings to include GCM and
1165 add a special AESGCM string for GCM only.
1168 *) Expand range of ctrls for AES GCM. Permit setting invocation
1169 field on decrypt and retrieval of invocation field only on encrypt.
1172 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
1173 As required by RFC5289 these ciphersuites cannot be used if for
1174 versions of TLS earlier than 1.2.
1177 *) For FIPS capable OpenSSL interpret a NULL default public key method
1178 as unset and return the appropriate default but do *not* set the default.
1179 This means we can return the appropriate method in applications that
1180 switch between FIPS and non-FIPS modes.
1183 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
1184 ENGINE is used then we cannot handle that in the FIPS module so we
1185 keep original code iff non-FIPS operations are allowed.
1188 *) Add -attime option to openssl utilities.
1189 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1191 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
1194 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
1195 FIPS EC methods unconditionally for now.
1198 *) New build option no-ec2m to disable characteristic 2 code.
1201 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
1202 all cases can be covered as some introduce binary incompatibilities.
1205 *) Redirect RSA operations to FIPS module including keygen,
1206 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
1209 *) Add similar low level API blocking to ciphers.
1212 *) Low level digest APIs are not approved in FIPS mode: any attempt
1213 to use these will cause a fatal error. Applications that *really* want
1214 to use them can use the private_* version instead.
1217 *) Redirect cipher operations to FIPS module for FIPS builds.
1220 *) Redirect digest operations to FIPS module for FIPS builds.
1223 *) Update build system to add "fips" flag which will link in fipscanister.o
1224 for static and shared library builds embedding a signature if needed.
1227 *) Output TLS supported curves in preference order instead of numerical
1228 order. This is currently hardcoded for the highest order curves first.
1229 This should be configurable so applications can judge speed vs strength.
1232 *) Add TLS v1.2 server support for client authentication.
1235 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
1239 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
1240 FIPS modules versions.
1243 *) Add TLS v1.2 client side support for client authentication. Keep cache
1244 of handshake records longer as we don't know the hash algorithm to use
1245 until after the certificate request message is received.
1248 *) Initial TLS v1.2 client support. Add a default signature algorithms
1249 extension including all the algorithms we support. Parse new signature
1250 format in client key exchange. Relax some ECC signing restrictions for
1251 TLS v1.2 as indicated in RFC5246.
1254 *) Add server support for TLS v1.2 signature algorithms extension. Switch
1255 to new signature format when needed using client digest preference.
1256 All server ciphersuites should now work correctly in TLS v1.2. No client
1257 support yet and no support for client certificates.
1260 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
1261 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
1262 ciphersuites. At present only RSA key exchange ciphersuites work with
1263 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
1264 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
1265 and version checking.
1268 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
1269 with this defined it will not be affected by any changes to ssl internal
1270 structures. Add several utility functions to allow openssl application
1271 to work with OPENSSL_NO_SSL_INTERN defined.
1275 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1277 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1280 *) Permit abbreviated handshakes when renegotiating using the function
1281 SSL_renegotiate_abbreviated().
1282 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1284 *) Add call to ENGINE_register_all_complete() to
1285 ENGINE_load_builtin_engines(), so some implementations get used
1286 automatically instead of needing explicit application support.
1289 *) Add support for TLS key exporter as described in RFC5705.
1290 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1292 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1293 a few changes are required:
1295 Add SSL_OP_NO_TLSv1_1 flag.
1296 Add TLSv1_1 methods.
1297 Update version checking logic to handle version 1.1.
1298 Add explicit IV handling (ported from DTLS code).
1299 Add command line options to s_client/s_server.
1302 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
1304 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1306 This addresses the flaw in CBC record processing discovered by
1307 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1308 at: http://www.isg.rhul.ac.uk/tls/
1310 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1311 Security Group at Royal Holloway, University of London
1312 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1313 Emilia Käsper for the initial patch.
1315 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1317 *) Return an error when checking OCSP signatures when key is NULL.
1318 This fixes a DoS attack. (CVE-2013-0166)
1321 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1322 the right response is stapled. Also change SSL_get_certificate()
1323 so it returns the certificate actually sent.
1324 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1325 (This is a backport)
1326 [Rob Stradling <rob.stradling@comodo.com>]
1328 *) Fix possible deadlock when decoding public keys.
1331 Changes between 1.0.0i and 1.0.0j [10 May 2012]
1333 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
1336 *) Sanity check record length before skipping explicit IV in DTLS
1339 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1340 fuzzing as a service testing platform.
1344 *) Initialise tkeylen properly when encrypting CMS messages.
1345 Thanks to Solar Designer of Openwall for reporting this issue.
1348 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
1350 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1351 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1352 in CRYPTO_realloc_clean.
1354 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1355 issue and to Adam Langley <agl@chromium.org> for fixing it.
1357 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1359 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1361 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1362 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1363 content decryption and always return the same error. Note: this attack
1364 needs on average 2^20 messages so it only affects automated senders. The
1365 old behaviour can be reenabled in the CMS code by setting the
1366 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1367 an MMA defence is not necessary.
1368 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1369 this issue. (CVE-2012-0884)
1372 *) Fix CVE-2011-4619: make sure we really are receiving a
1373 client hello before rejecting multiple SGC restarts. Thanks to
1374 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1377 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1379 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1380 Thanks to Antonio Martin, Enterprise Secure Access Research and
1381 Development, Cisco Systems, Inc. for discovering this bug and
1382 preparing a fix. (CVE-2012-0050)
1385 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1387 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1388 of the Vaudenay padding oracle attack on CBC mode encryption
1389 which enables an efficient plaintext recovery attack against
1390 the OpenSSL implementation of DTLS. Their attack exploits timing
1391 differences arising during decryption processing. A research
1392 paper describing this attack can be found at:
1393 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1394 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1395 Security Group at Royal Holloway, University of London
1396 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1397 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1398 for preparing the fix. (CVE-2011-4108)
1399 [Robin Seggelmann, Michael Tuexen]
1401 *) Clear bytes used for block padding of SSL 3.0 records.
1403 [Adam Langley (Google)]
1405 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1406 Kadianakis <desnacked@gmail.com> for discovering this issue and
1407 Adam Langley for preparing the fix. (CVE-2011-4619)
1408 [Adam Langley (Google)]
1410 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1411 [Andrey Kulikov <amdeich@gmail.com>]
1413 *) Prevent malformed RFC3779 data triggering an assertion failure.
1414 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1415 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1416 [Rob Austein <sra@hactrn.net>]
1418 *) Improved PRNG seeding for VOS.
1419 [Paul Green <Paul.Green@stratus.com>]
1421 *) Fix ssl_ciph.c set-up race.
1422 [Adam Langley (Google)]
1424 *) Fix spurious failures in ecdsatest.c.
1425 [Emilia Käsper (Google)]
1427 *) Fix the BIO_f_buffer() implementation (which was mixing different
1428 interpretations of the '..._len' fields).
1429 [Adam Langley (Google)]
1431 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1432 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1433 threads won't reuse the same blinding coefficients.
1435 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1436 lock to call BN_BLINDING_invert_ex, and avoids one use of
1437 BN_BLINDING_update for each BN_BLINDING structure (previously,
1438 the last update always remained unused).
1439 [Emilia Käsper (Google)]
1441 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1442 [Bob Buckholz (Google)]
1444 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1446 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1447 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1448 [Kaspar Brand <ossl@velox.ch>]
1450 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1451 for multi-threaded use of ECDH. (CVE-2011-3210)
1452 [Adam Langley (Google)]
1454 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1457 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1458 signature public key algorithm by using OID xref utilities instead.
1459 Before this you could only use some ECC ciphersuites with SHA1 only.
1462 *) Add protection against ECDSA timing attacks as mentioned in the paper
1463 by Billy Bob Brumley and Nicola Tuveri, see:
1465 http://eprint.iacr.org/2011/232.pdf
1467 [Billy Bob Brumley and Nicola Tuveri]
1469 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1471 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1472 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1474 *) Fix bug in string printing code: if *any* escaping is enabled we must
1475 escape the escape character (backslash) or the resulting string is
1479 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1481 *) Disable code workaround for ancient and obsolete Netscape browsers
1482 and servers: an attacker can use it in a ciphersuite downgrade attack.
1483 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1486 *) Fixed J-PAKE implementation error, originally discovered by
1487 Sebastien Martini, further info and confirmation from Stefan
1488 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1491 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1493 *) Fix extension code to avoid race conditions which can result in a buffer
1494 overrun vulnerability: resumed sessions must not be modified as they can
1495 be shared by multiple threads. CVE-2010-3864
1498 *) Fix WIN32 build system to correctly link an ENGINE directory into
1502 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1504 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1506 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1508 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1510 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1511 context. The operation can be customised via the ctrl mechanism in
1512 case ENGINEs want to include additional functionality.
1515 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1518 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1519 output hashes compatible with older versions of OpenSSL.
1520 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1522 *) Fix compression algorithm handling: if resuming a session use the
1523 compression algorithm of the resumed session instead of determining
1524 it from client hello again. Don't allow server to change algorithm.
1527 *) Add load_crls() function to apps tidying load_certs() too. Add option
1528 to verify utility to allow additional CRLs to be included.
1531 *) Update OCSP request code to permit adding custom headers to the request:
1532 some responders need this.
1535 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1537 [Julia Lawall <julia@diku.dk>]
1539 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1540 needlessly dereferenced structures, used obsolete functions and
1541 didn't handle all updated verify codes correctly.
1544 *) Disable MD2 in the default configuration.
1547 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1548 indicate the initial BIO being pushed or popped. This makes it possible
1549 to determine whether the BIO is the one explicitly called or as a result
1550 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1551 it handles reference counts correctly and doesn't zero out the I/O bio
1552 when it is not being explicitly popped. WARNING: applications which
1553 included workarounds for the old buggy behaviour will need to be modified
1554 or they could free up already freed BIOs.
1557 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1558 renaming to all platforms (within the 0.9.8 branch, this was
1559 done conditionally on Netware platforms to avoid a name clash).
1560 [Guenter <lists@gknw.net>]
1562 *) Add ECDHE and PSK support to DTLS.
1563 [Michael Tuexen <tuexen@fh-muenster.de>]
1565 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1569 *) Add "missing" function EVP_MD_flags() (without this the only way to
1570 retrieve a digest flags is by accessing the structure directly. Update
1571 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1572 or cipher is registered as in the "from" argument. Print out all
1573 registered digests in the dgst usage message instead of manually
1574 attempting to work them out.
1577 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1578 this allows the use of compression and extensions. Change default cipher
1579 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1580 by default unless an application cipher string requests it.
1583 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1584 key ids to find matching certificates and keys but some PKCS#12 files
1585 don't follow the (somewhat unwritten) rules and this strategy fails.
1586 Now just gather all certificates together and the first private key
1587 then look for the first certificate that matches the key.
1590 *) Support use of registered digest and cipher names for dgst and cipher
1591 commands instead of having to add each one as a special case. So now
1598 openssl dgst -sha256 foo
1600 and this works for ENGINE based algorithms too.
1604 *) Update Gost ENGINE to support parameter files.
1605 [Victor B. Wagner <vitus@cryptocom.ru>]
1607 *) Support GeneralizedTime in ca utility.
1608 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1610 *) Enhance the hash format used for certificate directory links. The new
1611 form uses the canonical encoding (meaning equivalent names will work
1612 even if they aren't identical) and uses SHA1 instead of MD5. This form
1613 is incompatible with the older format and as a result c_rehash should
1614 be used to rebuild symbolic links.
1617 *) Make PKCS#8 the default write format for private keys, replacing the
1618 traditional format. This form is standardised, more secure and doesn't
1619 include an implicit MD5 dependency.
1622 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1623 committed to OpenSSL should pass this lot as a minimum.
1626 *) Add session ticket override functionality for use by EAP-FAST.
1627 [Jouni Malinen <j@w1.fi>]
1629 *) Modify HMAC functions to return a value. Since these can be implemented
1630 in an ENGINE errors can occur.
1633 *) Type-checked OBJ_bsearch_ex.
1636 *) Type-checked OBJ_bsearch. Also some constification necessitated
1637 by type-checking. Still to come: TXT_DB, bsearch(?),
1638 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1642 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1643 seconds to a tm structure directly, instead of going through OS
1644 specific date routines. This avoids any issues with OS routines such
1645 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1646 and X509_time_adj_ex() to cover the extended range. The existing
1647 X509_time_adj() is still usable and will no longer have any date issues.
1650 *) Delta CRL support. New use deltas option which will attempt to locate
1651 and search any appropriate delta CRLs available.
1653 This work was sponsored by Google.
1656 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1657 code and add additional score elements. Validate alternate CRL paths
1658 as part of the CRL checking and indicate a new error "CRL path validation
1659 error" in this case. Applications wanting additional details can use
1660 the verify callback and check the new "parent" field. If this is not
1661 NULL CRL path validation is taking place. Existing applications wont
1662 see this because it requires extended CRL support which is off by
1665 This work was sponsored by Google.
1668 *) Support for freshest CRL extension.
1670 This work was sponsored by Google.
1673 *) Initial indirect CRL support. Currently only supported in the CRLs
1674 passed directly and not via lookup. Process certificate issuer
1675 CRL entry extension and lookup CRL entries by bother issuer name
1676 and serial number. Check and process CRL issuer entry in IDP extension.
1678 This work was sponsored by Google.
1681 *) Add support for distinct certificate and CRL paths. The CRL issuer
1682 certificate is validated separately in this case. Only enabled if
1683 an extended CRL support flag is set: this flag will enable additional
1684 CRL functionality in future.
1686 This work was sponsored by Google.
1689 *) Add support for policy mappings extension.
1691 This work was sponsored by Google.
1694 *) Fixes to pathlength constraint, self issued certificate handling,
1695 policy processing to align with RFC3280 and PKITS tests.
1697 This work was sponsored by Google.
1700 *) Support for name constraints certificate extension. DN, email, DNS
1701 and URI types are currently supported.
1703 This work was sponsored by Google.
1706 *) To cater for systems that provide a pointer-based thread ID rather
1707 than numeric, deprecate the current numeric thread ID mechanism and
1708 replace it with a structure and associated callback type. This
1709 mechanism allows a numeric "hash" to be extracted from a thread ID in
1710 either case, and on platforms where pointers are larger than 'long',
1711 mixing is done to help ensure the numeric 'hash' is usable even if it
1712 can't be guaranteed unique. The default mechanism is to use "&errno"
1713 as a pointer-based thread ID to distinguish between threads.
1715 Applications that want to provide their own thread IDs should now use
1716 CRYPTO_THREADID_set_callback() to register a callback that will call
1717 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1719 Note that ERR_remove_state() is now deprecated, because it is tied
1720 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1721 to free the current thread's error state should be replaced by
1722 ERR_remove_thread_state(NULL).
1724 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1725 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1726 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1727 application was previously providing a numeric thread callback that
1728 was inappropriate for distinguishing threads, then uniqueness might
1729 have been obtained with &errno that happened immediately in the
1730 intermediate development versions of OpenSSL; this is no longer the
1731 case, the numeric thread callback will now override the automatic use
1733 [Geoff Thorpe, with help from Bodo Moeller]
1735 *) Initial support for different CRL issuing certificates. This covers a
1736 simple case where the self issued certificates in the chain exist and
1737 the real CRL issuer is higher in the existing chain.
1739 This work was sponsored by Google.
1742 *) Removed effectively defunct crypto/store from the build.
1745 *) Revamp of STACK to provide stronger type-checking. Still to come:
1746 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1747 ASN1_STRING, CONF_VALUE.
1750 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1751 RAM on SSL connections. This option can save about 34k per idle SSL.
1754 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1755 STACK, TXT_DB, bsearch, qsort.
1758 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1759 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1760 support for data, signedData, compressedData, digestedData and
1761 encryptedData, envelopedData types included. Scripts to check against
1762 RFC4134 examples draft and interop and consistency checks of many
1763 content types and variants.
1766 *) Add options to enc utility to support use of zlib compression BIO.
1769 *) Extend mk1mf to support importing of options and assembly language
1770 files from Configure script, currently only included in VC-WIN32.
1771 The assembly language rules can now optionally generate the source
1772 files from the associated perl scripts.
1775 *) Implement remaining functionality needed to support GOST ciphersuites.
1776 Interop testing has been performed using CryptoPro implementations.
1777 [Victor B. Wagner <vitus@cryptocom.ru>]
1779 *) s390x assembler pack.
1782 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1786 *) Implement Opaque PRF Input TLS extension as specified in
1787 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1788 official specification yet and no extension type assignment by
1789 IANA exists, this extension (for now) will have to be explicitly
1790 enabled when building OpenSSL by providing the extension number
1791 to use. For example, specify an option
1793 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1795 to the "config" or "Configure" script to enable the extension,
1796 assuming extension number 0x9527 (which is a completely arbitrary
1797 and unofficial assignment based on the MD5 hash of the Internet
1798 Draft). Note that by doing so, you potentially lose
1799 interoperability with other TLS implementations since these might
1800 be using the same extension number for other purposes.
1802 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1803 opaque PRF input value to use in the handshake. This will create
1804 an interal copy of the length-'len' string at 'src', and will
1805 return non-zero for success.
1807 To get more control and flexibility, provide a callback function
1810 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1811 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1815 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1818 Callback function 'cb' will be called in handshakes, and is
1819 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1820 Argument 'arg' is for application purposes (the value as given to
1821 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1822 be provided to the callback function). The callback function
1823 has to return non-zero to report success: usually 1 to use opaque
1824 PRF input just if possible, or 2 to enforce use of the opaque PRF
1825 input. In the latter case, the library will abort the handshake
1826 if opaque PRF input is not successfully negotiated.
1828 Arguments 'peerinput' and 'len' given to the callback function
1829 will always be NULL and 0 in the case of a client. A server will
1830 see the client's opaque PRF input through these variables if
1831 available (NULL and 0 otherwise). Note that if the server
1832 provides an opaque PRF input, the length must be the same as the
1833 length of the client's opaque PRF input.
1835 Note that the callback function will only be called when creating
1836 a new session (session resumption can resume whatever was
1837 previously negotiated), and will not be called in SSL 2.0
1838 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1839 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1840 for applications that need to enforce opaque PRF input.
1844 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1847 [Victor B. Wagner <vitus@cryptocom.ru>]
1849 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1850 RFC4507bis. The encrypted ticket format is an encrypted encoded
1851 SSL_SESSION structure, that way new session features are automatically
1854 If a client application caches session in an SSL_SESSION structure
1855 support is transparent because tickets are now stored in the encoded
1858 The SSL_CTX structure automatically generates keys for ticket
1859 protection in servers so again support should be possible
1860 with no application modification.
1862 If a client or server wishes to disable RFC4507 support then the option
1863 SSL_OP_NO_TICKET can be set.
1865 Add a TLS extension debugging callback to allow the contents of any client
1866 or server extensions to be examined.
1868 This work was sponsored by Google.
1871 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1872 OpenSSL should now compile cleanly on gcc 4.2
1873 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1875 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1876 support including streaming MAC support: this is required for GOST
1877 ciphersuite support.
1878 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1880 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1881 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1882 to output in BER and PEM format.
1885 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1886 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1887 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1888 ENGINE support for HMAC keys which are unextractable. New -mac and
1889 -macopt options to dgst utility.
1892 *) New option -sigopt to dgst utility. Update dgst to use
1893 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1894 alternative signing paramaters such as X9.31 or PSS in the dgst
1898 *) Change ssl_cipher_apply_rule(), the internal function that does
1899 the work each time a ciphersuite string requests enabling
1900 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1901 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1902 the order of disabled ciphersuites such that those ciphersuites
1903 that most recently went from enabled to disabled not only stay
1904 in order with respect to each other, but also have higher priority
1905 than other disabled ciphersuites the next time ciphersuites are
1908 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1909 the same ciphersuites as with "HIGH" alone, but in a specific
1910 order where the PSK ciphersuites come first (since they are the
1911 most recently disabled ciphersuites when "HIGH" is parsed).
1913 Also, change ssl_create_cipher_list() (using this new
1914 funcionality) such that between otherwise identical
1915 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1919 *) Change ssl_create_cipher_list() so that it automatically
1920 arranges the ciphersuites in reasonable order before starting
1921 to process the rule string. Thus, the definition for "DEFAULT"
1922 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1923 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1924 This makes it much easier to arrive at a reasonable default order
1925 in applications for which anonymous ciphers are OK (meaning
1926 that you can't actually use DEFAULT).
1927 [Bodo Moeller; suggested by Victor Duchovni]
1929 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1930 processing) into multiple integers instead of setting
1931 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1932 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1933 (These masks as well as the individual bit definitions are hidden
1934 away into the non-exported interface ssl/ssl_locl.h, so this
1935 change to the definition of the SSL_CIPHER structure shouldn't
1936 affect applications.) This give us more bits for each of these
1937 categories, so there is no longer a need to coagulate AES128 and
1938 AES256 into a single algorithm bit, and to coagulate Camellia128
1939 and Camellia256 into a single algorithm bit, which has led to all
1942 Thus, among other things, the kludge introduced in 0.9.7m and
1943 0.9.8e for masking out AES256 independently of AES128 or masking
1944 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1946 With the change, we also introduce new ciphersuite aliases that
1947 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1951 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1952 Use the leftmost N bytes of the signature input if the input is
1953 larger than the prime q (with N being the size in bytes of q).
1956 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1957 it yet and it is largely untested.
1960 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1963 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1964 some compilers (gcc 4.2 and later) reject their use. Safestack is
1965 reimplemented. Update ASN1 to avoid use of legacy functions.
1968 *) Win32/64 targets are linked with Winsock2.
1971 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1972 to external functions. This can be used to increase CRL handling
1973 efficiency especially when CRLs are very large by (for example) storing
1974 the CRL revoked certificates in a database.
1977 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1978 new CRLs added to a directory can be used. New command line option
1979 -verify_return_error to s_client and s_server. This causes real errors
1980 to be returned by the verify callback instead of carrying on no matter
1981 what. This reflects the way a "real world" verify callback would behave.
1984 *) GOST engine, supporting several GOST algorithms and public key formats.
1985 Kindly donated by Cryptocom.
1988 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1989 partitioned by DP are handled but no indirect CRL or reason partitioning
1990 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1991 selected via a scoring technique which handles IDP and AKID in CRLs.
1994 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1995 will ultimately be used for all verify operations: this will remove the
1996 X509_STORE dependency on certificate verification and allow alternative
1997 lookup methods. X509_STORE based implementations of these two callbacks.
2000 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2001 Modify get_crl() to find a valid (unexpired) CRL if possible.
2004 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2005 this would be called X509_CRL_cmp() but that name is already used by
2006 a function that just compares CRL issuer names. Cache several CRL
2007 extensions in X509_CRL structure and cache CRLDP in X509.
2010 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2011 this maps equivalent X509_NAME structures into a consistent structure.
2012 Name comparison can then be performed rapidly using memcmp().
2015 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2019 *) Allow digests to supply their own micalg string for S/MIME type using
2020 the ctrl EVP_MD_CTRL_MICALG.
2023 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2024 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2025 ctrl. It can then customise the structure before and/or after signing
2029 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2030 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2031 to free up any added signature OIDs.
2034 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2035 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2036 digest and cipher tables. New options added to openssl utility:
2037 list-message-digest-algorithms and list-cipher-algorithms.
2040 *) Change the array representation of binary polynomials: the list
2041 of degrees of non-zero coefficients is now terminated with -1.
2042 Previously it was terminated with 0, which was also part of the
2043 value; thus, the array representation was not applicable to
2044 polynomials where t^0 has coefficient zero. This change makes
2045 the array representation useful in a more general context.
2048 *) Various modifications and fixes to SSL/TLS cipher string
2049 handling. For ECC, the code now distinguishes between fixed ECDH
2050 with RSA certificates on the one hand and with ECDSA certificates
2051 on the other hand, since these are separate ciphersuites. The
2052 unused code for Fortezza ciphersuites has been removed.
2054 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2055 (not "ECDHE"). For consistency with the code for DH
2056 certificates, use of ECDH certificates is now considered ECDH
2057 authentication, not RSA or ECDSA authentication (the latter is
2058 merely the CA's signing algorithm and not actively used in the
2061 The temporary ciphersuite alias "ECCdraft" is no longer
2062 available, and ECC ciphersuites are no longer excluded from "ALL"
2063 and "DEFAULT". The following aliases now exist for RFC 4492
2064 ciphersuites, most of these by analogy with the DH case:
2066 kECDHr - ECDH cert, signed with RSA
2067 kECDHe - ECDH cert, signed with ECDSA
2068 kECDH - ECDH cert (signed with either RSA or ECDSA)
2069 kEECDH - ephemeral ECDH
2070 ECDH - ECDH cert or ephemeral ECDH
2076 AECDH - anonymous ECDH
2077 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2081 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2082 Use correct micalg parameters depending on digest(s) in signed message.
2085 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2086 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2089 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2090 an engine to register a method. Add ENGINE lookups for methods and
2091 functional reference processing.
2094 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2095 EVP_{Sign,Verify}* which allow an application to customise the signature
2099 *) New -resign option to smime utility. This adds one or more signers
2100 to an existing PKCS#7 signedData structure. Also -md option to use an
2101 alternative message digest algorithm for signing.
2104 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2105 create PKCS7 structures containing multiple signers. Update smime
2106 application to support multiple signers.
2109 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2113 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2114 Reorganize PBE internals to lookup from a static table using NIDs,
2115 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2116 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2117 PRF which will be automatically used with PBES2.
2120 *) Replace the algorithm specific calls to generate keys in "req" with the
2124 *) Update PKCS#7 enveloped data routines to use new API. This is now
2125 supported by any public key method supporting the encrypt operation. A
2126 ctrl is added to allow the public key algorithm to examine or modify
2127 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2131 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2132 a default digest type to use. In most cases this will be SHA1 but some
2133 algorithms (such as GOST) need to specify an alternative digest. The
2134 return value indicates how strong the preference is 1 means optional and
2135 2 is mandatory (that is it is the only supported type). Modify
2136 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2137 use the default md. Update openssl utilities to use the default digest
2138 type for signing if it is not explicitly indicated.
2141 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2142 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2143 signing method from the key type. This effectively removes the link
2144 between digests and public key types.
2147 *) Add an OID cross reference table and utility functions. Its purpose is to
2148 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2149 rsaEncryption. This will allow some of the algorithm specific hackery
2150 needed to use the correct OID to be removed.
2153 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
2154 structures for PKCS7_sign(). They are now set up by the relevant public
2158 *) Add provisional EC pkey method with support for ECDSA and ECDH.
2161 *) Add support for key derivation (agreement) in the API, DH method and
2165 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
2166 public and private key formats. As a side effect these add additional
2167 command line functionality not previously available: DSA signatures can be
2168 generated and verified using pkeyutl and DH key support and generation in
2173 [Oliver Tappe <zooey@hirschkaefer.de>]
2175 *) New make target "install_html_docs" installs HTML renditions of the
2177 [Oliver Tappe <zooey@hirschkaefer.de>]
2179 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
2180 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
2181 support key and parameter generation and add initial key generation
2182 functionality for RSA.
2185 *) Add functions for main EVP_PKEY_method operations. The undocumented
2186 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
2187 EVP_PKEY_{encrypt,decrypt}_old.
2190 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
2191 key API, doesn't do much yet.
2194 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
2195 public key algorithms. New option to openssl utility:
2196 "list-public-key-algorithms" to print out info.
2199 *) Implement the Supported Elliptic Curves Extension for
2200 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2203 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
2204 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
2207 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
2208 utilities such as rsa, dsa, dsaparam etc except they process any key
2212 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
2213 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
2214 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
2218 *) Initial support for pluggable public key ASN1.
2219 De-spaghettify the public key ASN1 handling. Move public and private
2220 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
2221 algorithm specific handling to a single module within the relevant
2222 algorithm directory. Add functions to allow (near) opaque processing
2223 of public and private key structures.
2226 *) Implement the Supported Point Formats Extension for
2227 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2230 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
2231 for the psk identity [hint] and the psk callback functions to the
2232 SSL_SESSION, SSL and SSL_CTX structure.
2235 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
2239 SSL_CTX_use_psk_identity_hint
2240 SSL_get_psk_identity_hint
2241 SSL_get_psk_identity
2242 SSL_use_psk_identity_hint
2244 [Mika Kousa and Pasi Eronen of Nokia Corporation]
2246 *) Add RFC 3161 compliant time stamp request creation, response generation
2247 and response verification functionality.
2248 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2250 *) Add initial support for TLS extensions, specifically for the server_name
2251 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2252 have new members for a host name. The SSL data structure has an
2253 additional member SSL_CTX *initial_ctx so that new sessions can be
2254 stored in that context to allow for session resumption, even after the
2255 SSL has been switched to a new SSL_CTX in reaction to a client's
2256 server_name extension.
2258 New functions (subject to change):
2260 SSL_get_servername()
2261 SSL_get_servername_type()
2264 New CTRL codes and macros (subject to change):
2266 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2267 - SSL_CTX_set_tlsext_servername_callback()
2268 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2269 - SSL_CTX_set_tlsext_servername_arg()
2270 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2272 openssl s_client has a new '-servername ...' option.
2274 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2275 '-key2 ...', '-servername_fatal' (subject to change). This allows
2276 testing the HostName extension for a specific single host name ('-cert'
2277 and '-key' remain fallbacks for handshakes without HostName
2278 negotiation). If the unrecognized_name alert has to be sent, this by
2279 default is a warning; it becomes fatal with the '-servername_fatal'
2282 [Peter Sylvester, Remy Allais, Christophe Renou]
2284 *) Whirlpool hash implementation is added.
2287 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2288 bn(64,32). Because of instruction set limitations it doesn't have
2289 any negative impact on performance. This was done mostly in order
2290 to make it possible to share assembler modules, such as bn_mul_mont
2291 implementations, between 32- and 64-bit builds without hassle.
2294 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2295 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2299 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2300 dedicated Montgomery multiplication procedure, is introduced.
2301 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2302 "64-bit" performance on certain 32-bit targets.
2305 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2306 in SSL structures. New SSL ctrl to set maximum send fragment size.
2307 Save memory by seeting the I/O buffer sizes dynamically instead of
2308 using the maximum available value.
2311 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2312 in addition to the text details.
2315 *) Very, very preliminary EXPERIMENTAL support for printing of general
2316 ASN1 structures. This currently produces rather ugly output and doesn't
2317 handle several customised structures at all.
2320 *) Integrated support for PVK file format and some related formats such
2321 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2322 these in the 'rsa' and 'dsa' utilities.
2325 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2328 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2329 place for the (very old) "NETSCAPE" format certificates which are now
2330 handled using new ASN1 code equivalents.
2333 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2334 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2335 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2338 *) Modify CRL distribution points extension code to print out previously
2339 unsupported fields. Enhance extension setting code to allow setting of
2343 *) Add print and set support for Issuing Distribution Point CRL extension.
2346 *) Change 'Configure' script to enable Camellia by default.
2349 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
2351 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
2353 This addresses the flaw in CBC record processing discovered by
2354 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
2355 at: http://www.isg.rhul.ac.uk/tls/
2357 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2358 Security Group at Royal Holloway, University of London
2359 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
2360 Emilia Käsper for the initial patch.
2362 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
2364 *) Return an error when checking OCSP signatures when key is NULL.
2365 This fixes a DoS attack. (CVE-2013-0166)
2368 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
2369 the right response is stapled. Also change SSL_get_certificate()
2370 so it returns the certificate actually sent.
2371 See http://rt.openssl.org/Ticket/Display.html?id=2836.
2372 (This is a backport)
2373 [Rob Stradling <rob.stradling@comodo.com>]
2375 *) Fix possible deadlock when decoding public keys.
2378 Changes between 0.9.8w and 0.9.8x [10 May 2012]
2380 *) Sanity check record length before skipping explicit IV in DTLS
2383 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
2384 fuzzing as a service testing platform.
2388 *) Initialise tkeylen properly when encrypting CMS messages.
2389 Thanks to Solar Designer of Openwall for reporting this issue.
2392 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
2394 *) The fix for CVE-2012-2110 did not take into account that the
2395 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
2396 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
2397 rejecting negative len parameter. (CVE-2012-2131)
2398 [Tomas Hoger <thoger@redhat.com>]
2400 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
2402 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2403 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2404 in CRYPTO_realloc_clean.
2406 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2407 issue and to Adam Langley <agl@chromium.org> for fixing it.
2409 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2411 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
2413 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2414 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2415 content decryption and always return the same error. Note: this attack
2416 needs on average 2^20 messages so it only affects automated senders. The
2417 old behaviour can be reenabled in the CMS code by setting the
2418 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2419 an MMA defence is not necessary.
2420 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2421 this issue. (CVE-2012-0884)
2424 *) Fix CVE-2011-4619: make sure we really are receiving a
2425 client hello before rejecting multiple SGC restarts. Thanks to
2426 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2429 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
2431 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2432 Thanks to Antonio Martin, Enterprise Secure Access Research and
2433 Development, Cisco Systems, Inc. for discovering this bug and
2434 preparing a fix. (CVE-2012-0050)
2437 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
2439 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2440 of the Vaudenay padding oracle attack on CBC mode encryption
2441 which enables an efficient plaintext recovery attack against
2442 the OpenSSL implementation of DTLS. Their attack exploits timing
2443 differences arising during decryption processing. A research
2444 paper describing this attack can be found at:
2445 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2446 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2447 Security Group at Royal Holloway, University of London
2448 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2449 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2450 for preparing the fix. (CVE-2011-4108)
2451 [Robin Seggelmann, Michael Tuexen]
2453 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
2454 [Ben Laurie, Kasper <ekasper@google.com>]
2456 *) Clear bytes used for block padding of SSL 3.0 records.
2458 [Adam Langley (Google)]
2460 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2461 Kadianakis <desnacked@gmail.com> for discovering this issue and
2462 Adam Langley for preparing the fix. (CVE-2011-4619)
2463 [Adam Langley (Google)]
2465 *) Prevent malformed RFC3779 data triggering an assertion failure.
2466 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2467 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2468 [Rob Austein <sra@hactrn.net>]
2470 *) Fix ssl_ciph.c set-up race.
2471 [Adam Langley (Google)]
2473 *) Fix spurious failures in ecdsatest.c.
2474 [Emilia Käsper (Google)]
2476 *) Fix the BIO_f_buffer() implementation (which was mixing different
2477 interpretations of the '..._len' fields).
2478 [Adam Langley (Google)]
2480 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2481 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2482 threads won't reuse the same blinding coefficients.
2484 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2485 lock to call BN_BLINDING_invert_ex, and avoids one use of
2486 BN_BLINDING_update for each BN_BLINDING structure (previously,
2487 the last update always remained unused).
2488 [Emilia Käsper (Google)]
2490 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2491 for multi-threaded use of ECDH.
2492 [Adam Langley (Google)]
2494 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2497 *) Add protection against ECDSA timing attacks as mentioned in the paper
2498 by Billy Bob Brumley and Nicola Tuveri, see:
2500 http://eprint.iacr.org/2011/232.pdf
2502 [Billy Bob Brumley and Nicola Tuveri]
2504 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2506 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2507 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2509 *) Fix bug in string printing code: if *any* escaping is enabled we must
2510 escape the escape character (backslash) or the resulting string is
2514 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2516 *) Disable code workaround for ancient and obsolete Netscape browsers
2517 and servers: an attacker can use it in a ciphersuite downgrade attack.
2518 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2521 *) Fixed J-PAKE implementation error, originally discovered by
2522 Sebastien Martini, further info and confirmation from Stefan
2523 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2526 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2528 *) Fix extension code to avoid race conditions which can result in a buffer
2529 overrun vulnerability: resumed sessions must not be modified as they can
2530 be shared by multiple threads. CVE-2010-3864
2533 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2536 *) Don't reencode certificate when calculating signature: cache and use
2537 the original encoding instead. This makes signature verification of
2538 some broken encodings work correctly.
2541 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2542 is also one of the inputs.
2543 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2545 *) Don't repeatedly append PBE algorithms to table if they already exist.
2546 Sort table on each new add. This effectively makes the table read only
2547 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2551 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2553 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2556 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2557 access or freeing data twice (CVE-2010-0742)
2558 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2560 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2561 common in certificates and some applications which only call
2562 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2566 Reduce copying into .apps and .test in makevms.com
2567 Don't try to use blank CA certificate in CA.com
2568 Allow use of C files from original directories in maketests.com
2569 [Steven M. Schweda" <sms@antinode.info>]
2571 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2573 *) When rejecting SSL/TLS records due to an incorrect version number, never
2574 update s->server with a new major version number. As of
2575 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2576 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2577 the previous behavior could result in a read attempt at NULL when
2578 receiving specific incorrect SSL/TLS records once record payload
2579 protection is active. (CVE-2010-0740)
2580 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2582 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2583 could be crashed if the relevant tables were not present (e.g. chrooted).
2584 [Tomas Hoger <thoger@redhat.com>]
2586 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2588 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2589 [Martin Olsson, Neel Mehta]
2591 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2592 accommodate for stack sorting, always a write lock!).
2595 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2596 excessive delays in the RAND_poll(): over a minute. As a workaround
2597 include a time check in the inner Heap32Next loop too.
2600 *) The code that handled flushing of data in SSL/TLS originally used the
2601 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2602 the problem outlined in PR#1949. The fix suggested there however can
2603 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2604 of Apache). So instead simplify the code to flush unconditionally.
2605 This should be fine since flushing with no data to flush is a no op.
2608 *) Handle TLS versions 2.0 and later properly and correctly use the
2609 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2610 off ancient servers have a habit of sticking around for a while...
2613 *) Modify compression code so it frees up structures without using the
2614 ex_data callbacks. This works around a problem where some applications
2615 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2616 restarting) then use compression (e.g. SSL with compression) later.
2617 This results in significant per-connection memory leaks and
2618 has caused some security issues including CVE-2008-1678 and
2622 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2623 change when encrypting or decrypting.
2626 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2627 connect and renegotiate with servers which do not support RI.
2628 Until RI is more widely deployed this option is enabled by default.
2631 *) Add "missing" ssl ctrls to clear options and mode.
2634 *) If client attempts to renegotiate and doesn't support RI respond with
2635 a no_renegotiation alert as required by RFC5746. Some renegotiating
2636 TLS clients will continue a connection gracefully when they receive
2637 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2638 waiting for a server hello which it will never receive. Now we treat a
2639 received no_renegotiation alert as a fatal error. This is because
2640 applications requesting a renegotiation might well expect it to succeed
2641 and would have no code in place to handle the server denying it so the
2642 only safe thing to do is to terminate the connection.
2645 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2646 peer supports secure renegotiation and 0 otherwise. Print out peer
2647 renegotiation support in s_client/s_server.
2650 *) Replace the highly broken and deprecated SPKAC certification method with
2651 the updated NID creation version. This should correctly handle UTF8.
2654 *) Implement RFC5746. Re-enable renegotiation but require the extension
2655 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2656 turns out to be a bad idea. It has been replaced by
2657 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2658 SSL_CTX_set_options(). This is really not recommended unless you
2659 know what you are doing.
2660 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2662 *) Fixes to stateless session resumption handling. Use initial_ctx when
2663 issuing and attempting to decrypt tickets in case it has changed during
2664 servername handling. Use a non-zero length session ID when attempting
2665 stateless session resumption: this makes it possible to determine if
2666 a resumption has occurred immediately after receiving server hello
2667 (several places in OpenSSL subtly assume this) instead of later in
2671 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2672 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2673 fixes for a few places where the return code is not checked
2675 [Julia Lawall <julia@diku.dk>]
2677 *) Add --strict-warnings option to Configure script to include devteam
2678 warnings in other configurations.
2681 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2682 makes it possible to install openssl libraries in locations which
2683 have names other than "lib", for example "/usr/lib64" which some
2685 [Steve Henson, based on patch from Jeremy Utley]
2687 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2688 X690 8.9.12 and can produce some misleading textual output of OIDs.
2689 [Steve Henson, reported by Dan Kaminsky]
2691 *) Delete MD2 from algorithm tables. This follows the recommendation in
2692 several standards that it is not used in new applications due to
2693 several cryptographic weaknesses. For binary compatibility reasons
2694 the MD2 API is still compiled in by default.
2697 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2701 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2702 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2704 [Guenter <lists@gknw.net>]
2706 *) Fix the server certificate chain building code to use X509_verify_cert(),
2707 it used to have an ad-hoc builder which was unable to cope with anything
2708 other than a simple chain.
2709 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2711 *) Don't check self signed certificate signatures in X509_verify_cert()
2712 by default (a flag can override this): it just wastes time without
2713 adding any security. As a useful side effect self signed root CAs
2714 with non-FIPS digests are now usable in FIPS mode.
2717 *) In dtls1_process_out_of_seq_message() the check if the current message
2718 is already buffered was missing. For every new message was memory
2719 allocated, allowing an attacker to perform an denial of service attack
2720 with sending out of seq handshake messages until there is no memory
2721 left. Additionally every future messege was buffered, even if the
2722 sequence number made no sense and would be part of another handshake.
2723 So only messages with sequence numbers less than 10 in advance will be
2724 buffered. (CVE-2009-1378)
2725 [Robin Seggelmann, discovered by Daniel Mentz]
2727 *) Records are buffered if they arrive with a future epoch to be
2728 processed after finishing the corresponding handshake. There is
2729 currently no limitation to this buffer allowing an attacker to perform
2730 a DOS attack with sending records with future epochs until there is no
2731 memory left. This patch adds the pqueue_size() function to determine
2732 the size of a buffer and limits the record buffer to 100 entries.
2734 [Robin Seggelmann, discovered by Daniel Mentz]
2736 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2737 parent structure is freed. (CVE-2009-1379)
2740 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2741 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2744 [Ilya O. <vrghost@gmail.com>]
2746 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2748 *) Disable renegotiation completely - this fixes a severe security
2749 problem (CVE-2009-3555) at the cost of breaking all
2750 renegotiation. Renegotiation can be re-enabled by setting
2751 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2752 run-time. This is really not recommended unless you know what
2756 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2758 *) Don't set val to NULL when freeing up structures, it is freed up by
2759 underlying code. If sizeof(void *) > sizeof(long) this can result in
2760 zeroing past the valid field. (CVE-2009-0789)
2761 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2763 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2764 checked correctly. This would allow some invalid signed attributes to
2765 appear to verify correctly. (CVE-2009-0591)
2766 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2768 *) Reject UniversalString and BMPString types with invalid lengths. This
2769 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2770 a legal length. (CVE-2009-0590)
2773 *) Set S/MIME signing as the default purpose rather than setting it
2774 unconditionally. This allows applications to override it at the store
2778 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2779 to handle some structures.
2782 *) Improve efficiency of mem_gets: don't search whole buffer each time
2784 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2786 *) New -hex option for openssl rand.
2789 *) Print out UTF8String and NumericString when parsing ASN1.
2792 *) Support NumericString type for name components.
2795 *) Allow CC in the environment to override the automatically chosen
2796 compiler. Note that nothing is done to ensure flags work with the
2800 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2802 *) Properly check EVP_VerifyFinal() and similar return values
2804 [Ben Laurie, Bodo Moeller, Google Security Team]
2806 *) Enable TLS extensions by default.
2809 *) Allow the CHIL engine to be loaded, whether the application is
2810 multithreaded or not. (This does not release the developer from the
2811 obligation to set up the dynamic locking callbacks.)
2812 [Sander Temme <sander@temme.net>]
2814 *) Use correct exit code if there is an error in dgst command.
2815 [Steve Henson; problem pointed out by Roland Dirlewanger]
2817 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2818 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2821 *) Add experimental JPAKE support, including demo authentication in
2822 s_client and s_server.
2825 *) Set the comparison function in v3_addr_canonize().
2826 [Rob Austein <sra@hactrn.net>]
2828 *) Add support for XMPP STARTTLS in s_client.
2829 [Philip Paeps <philip@freebsd.org>]
2831 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2832 to ensure that even with this option, only ciphersuites in the
2833 server's preference list will be accepted. (Note that the option
2834 applies only when resuming a session, so the earlier behavior was
2835 just about the algorithm choice for symmetric cryptography.)
2838 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2840 *) Fix NULL pointer dereference if a DTLS server received
2841 ChangeCipherSpec as first record (CVE-2009-1386).
2844 *) Fix a state transition in s3_srvr.c and d1_srvr.c
2845 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2848 *) The fix in 0.9.8c that supposedly got rid of unsafe
2849 double-checked locking was incomplete for RSA blinding,
2850 addressing just one layer of what turns out to have been
2851 doubly unsafe triple-checked locking.
2853 So now fix this for real by retiring the MONT_HELPER macro
2854 in crypto/rsa/rsa_eay.c.
2856 [Bodo Moeller; problem pointed out by Marius Schilder]
2858 *) Various precautionary measures:
2860 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2862 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2863 (NB: This would require knowledge of the secret session ticket key
2864 to exploit, in which case you'd be SOL either way.)
2866 - Change bn_nist.c so that it will properly handle input BIGNUMs
2867 outside the expected range.
2869 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2872 [Neel Mehta, Bodo Moeller]
2874 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2875 the load fails. Useful for distros.
2876 [Ben Laurie and the FreeBSD team]
2878 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2881 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2884 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2886 This work was sponsored by Logica.
2889 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2890 keystores. Support for SSL/TLS client authentication too.
2891 Not compiled unless enable-capieng specified to Configure.
2893 This work was sponsored by Logica.
2896 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2897 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2898 attribute creation routines such as certifcate requests and PKCS#12
2902 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2904 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2905 handshake which could lead to a cilent crash as found using the
2906 Codenomicon TLS test suite (CVE-2008-1672)
2907 [Steve Henson, Mark Cox]
2909 *) Fix double free in TLS server name extensions which could lead to
2910 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2913 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2915 Clear the error queue to ensure that error entries left from
2916 older function calls do not interfere with the correct operation.
2917 [Lutz Jaenicke, Erik de Castro Lopo]
2919 *) Remove root CA certificates of commercial CAs:
2921 The OpenSSL project does not recommend any specific CA and does not
2922 have any policy with respect to including or excluding any CA.
2923 Therefore it does not make any sense to ship an arbitrary selection
2924 of root CA certificates with the OpenSSL software.
2927 *) RSA OAEP patches to fix two separate invalid memory reads.
2928 The first one involves inputs when 'lzero' is greater than
2929 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2930 before the beginning of from). The second one involves inputs where
2931 the 'db' section contains nothing but zeroes (there is a one-byte
2932 invalid read after the end of 'db').
2933 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2935 *) Partial backport from 0.9.9-dev:
2937 Introduce bn_mul_mont (dedicated Montgomery multiplication
2938 procedure) as a candidate for BIGNUM assembler implementation.
2939 While 0.9.9-dev uses assembler for various architectures, only
2940 x86_64 is available by default here in the 0.9.8 branch, and
2941 32-bit x86 is available through a compile-time setting.
2943 To try the 32-bit x86 assembler implementation, use Configure
2944 option "enable-montasm" (which exists only for this backport).
2946 As "enable-montasm" for 32-bit x86 disclaims code stability
2947 anyway, in this constellation we activate additional code
2948 backported from 0.9.9-dev for further performance improvements,
2949 namely BN_from_montgomery_word. (To enable this otherwise,
2950 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2952 [Andy Polyakov (backport partially by Bodo Moeller)]
2954 *) Add TLS session ticket callback. This allows an application to set
2955 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2956 values. This is useful for key rollover for example where several key
2957 sets may exist with different names.
2960 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2961 This was broken until now in 0.9.8 releases, such that the only way
2962 a registered ENGINE could be used (assuming it initialises
2963 successfully on the host) was to explicitly set it as the default
2964 for the relevant algorithms. This is in contradiction with 0.9.7
2965 behaviour and the documentation. With this fix, when an ENGINE is
2966 registered into a given algorithm's table of implementations, the
2967 'uptodate' flag is reset so that auto-discovery will be used next
2968 time a new context for that algorithm attempts to select an
2970 [Ian Lister (tweaked by Geoff Thorpe)]
2972 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2973 implemention in the following ways:
2975 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2978 Lack of BER streaming support means one pass streaming processing is
2979 only supported if data is detached: setting the streaming flag is
2980 ignored for embedded content.
2982 CMS support is disabled by default and must be explicitly enabled
2983 with the enable-cms configuration option.
2986 *) Update the GMP engine glue to do direct copies between BIGNUM and
2987 mpz_t when openssl and GMP use the same limb size. Otherwise the
2988 existing "conversion via a text string export" trick is still used.
2989 [Paul Sheer <paulsheer@gmail.com>]
2991 *) Zlib compression BIO. This is a filter BIO which compressed and
2992 uncompresses any data passed through it.
2995 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2996 RFC3394 compatible AES key wrapping.
2999 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3000 sets string data without copying. X509_ALGOR_set0() and
3001 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3002 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3003 from an X509_ATTRIBUTE structure optionally checking it occurs only
3004 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3008 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3009 to get the expected BN_FLG_CONSTTIME behavior.
3010 [Bodo Moeller (Google)]
3014 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3015 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3016 - added some more tests to do_tests.pl
3017 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3018 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3019 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3020 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3021 - various changes to netware.pl to enable gcc-cross builds on Win32
3023 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3024 - various changes to fix missing prototype warnings
3025 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3026 - added AES, WHIRLPOOL and CPUID assembler code to build files
3027 - added missing AES assembler make rules to mk1mf.pl
3028 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3029 [Guenter Knauf <eflash@gmx.net>]
3031 *) Implement certificate status request TLS extension defined in RFC3546.
3032 A client can set the appropriate parameters and receive the encoded
3033 OCSP response via a callback. A server can query the supplied parameters
3034 and set the encoded OCSP response in the callback. Add simplified examples
3035 to s_client and s_server.
3038 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3040 *) Fix various bugs:
3041 + Binary incompatibility of ssl_ctx_st structure
3042 + DTLS interoperation with non-compliant servers
3043 + Don't call get_session_cb() without proposed session
3044 + Fix ia64 assembler code
3045 [Andy Polyakov, Steve Henson]
3047 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3049 *) DTLS Handshake overhaul. There were longstanding issues with
3050 OpenSSL DTLS implementation, which were making it impossible for
3051 RFC 4347 compliant client to communicate with OpenSSL server.
3052 Unfortunately just fixing these incompatibilities would "cut off"
3053 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3054 server keeps tolerating non RFC compliant syntax. The opposite is
3055 not true, 0.9.8f client can not communicate with earlier server.
3056 This update even addresses CVE-2007-4995.
3059 *) Changes to avoid need for function casts in OpenSSL: some compilers
3060 (gcc 4.2 and later) reject their use.
3061 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3064 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3065 RFC4507bis. The encrypted ticket format is an encrypted encoded
3066 SSL_SESSION structure, that way new session features are automatically
3069 If a client application caches session in an SSL_SESSION structure
3070 support is transparent because tickets are now stored in the encoded
3073 The SSL_CTX structure automatically generates keys for ticket
3074 protection in servers so again support should be possible
3075 with no application modification.
3077 If a client or server wishes to disable RFC4507 support then the option
3078 SSL_OP_NO_TICKET can be set.
3080 Add a TLS extension debugging callback to allow the contents of any client
3081 or server extensions to be examined.
3083 This work was sponsored by Google.
3086 *) Add initial support for TLS extensions, specifically for the server_name
3087 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3088 have new members for a host name. The SSL data structure has an
3089 additional member SSL_CTX *initial_ctx so that new sessions can be
3090 stored in that context to allow for session resumption, even after the
3091 SSL has been switched to a new SSL_CTX in reaction to a client's
3092 server_name extension.
3094 New functions (subject to change):
3096 SSL_get_servername()
3097 SSL_get_servername_type()
3100 New CTRL codes and macros (subject to change):
3102 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3103 - SSL_CTX_set_tlsext_servername_callback()
3104 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3105 - SSL_CTX_set_tlsext_servername_arg()
3106 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3108 openssl s_client has a new '-servername ...' option.
3110 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3111 '-key2 ...', '-servername_fatal' (subject to change). This allows
3112 testing the HostName extension for a specific single host name ('-cert'
3113 and '-key' remain fallbacks for handshakes without HostName
3114 negotiation). If the unrecognized_name alert has to be sent, this by
3115 default is a warning; it becomes fatal with the '-servername_fatal'
3118 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3120 *) Add AES and SSE2 assembly language support to VC++ build.
3123 *) Mitigate attack on final subtraction in Montgomery reduction.
3126 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3127 (which previously caused an internal error).
3130 *) Squeeze another 10% out of IGE mode when in != out.
3133 *) AES IGE mode speedup.
3134 [Dean Gaudet (Google)]
3136 *) Add the Korean symmetric 128-bit cipher SEED (see
3137 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3138 add SEED ciphersuites from RFC 4162:
3140 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3141 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3142 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3143 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3145 To minimize changes between patchlevels in the OpenSSL 0.9.8
3146 series, SEED remains excluded from compilation unless OpenSSL
3147 is configured with 'enable-seed'.
3148 [KISA, Bodo Moeller]
3150 *) Mitigate branch prediction attacks, which can be practical if a
3151 single processor is shared, allowing a spy process to extract
3152 information. For detailed background information, see
3153 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3154 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3155 and Necessary Software Countermeasures"). The core of the change
3156 are new versions BN_div_no_branch() and
3157 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3158 respectively, which are slower, but avoid the security-relevant
3159 conditional branches. These are automatically called by BN_div()
3160 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3161 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3162 remove a conditional branch.
3164 BN_FLG_CONSTTIME is the new name for the previous
3165 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3166 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3167 in the exponent causes BN_mod_exp_mont() to use the alternative
3168 implementation in BN_mod_exp_mont_consttime().) The old name
3169 remains as a deprecated alias.
3171 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3172 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3173 constant-time implementations for more than just exponentiation.
3174 Here too the old name is kept as a deprecated alias.
3176 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3177 the BN_BLINDING structure gets an independent copy of the
3178 modulus. This means that the previous "BIGNUM *m" argument to
3179 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3180 essentially becomes "const BIGNUM *m", although we can't actually
3181 change this in the header file before 0.9.9. It allows
3182 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3183 enable BN_FLG_CONSTTIME.
3185 [Matthew D Wood (Intel Corp)]
3187 *) In the SSL/TLS server implementation, be strict about session ID
3188 context matching (which matters if an application uses a single
3189 external cache for different purposes). Previously,
3190 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3191 set. This did ensure strict client verification, but meant that,
3192 with applications using a single external cache for quite
3193 different requirements, clients could circumvent ciphersuite
3194 restrictions for a given session ID context by starting a session
3195 in a different context.
3198 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3199 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3200 authentication-only ciphersuites.
3203 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3204 not complete and could lead to a possible single byte overflow
3205 (CVE-2007-5135) [Ben Laurie]
3207 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3209 *) Since AES128 and AES256 (and similarly Camellia128 and
3210 Camellia256) share a single mask bit in the logic of
3211 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3212 kludge to work properly if AES128 is available and AES256 isn't
3213 (or if Camellia128 is available and Camellia256 isn't).
3216 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3217 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3218 When a point or a seed is encoded in a BIT STRING, we need to
3219 prevent the removal of trailing zero bits to get the proper DER
3220 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3221 of a NamedBitList, for which trailing 0 bits need to be removed.)
3224 *) Have SSL/TLS server implementation tolerate "mismatched" record
3225 protocol version while receiving ClientHello even if the
3226 ClientHello is fragmented. (The server can't insist on the
3227 particular protocol version it has chosen before the ServerHello
3228 message has informed the client about his choice.)
3231 *) Add RFC 3779 support.
3232 [Rob Austein for ARIN, Ben Laurie]
3234 *) Load error codes if they are not already present instead of using a
3235 static variable. This allows them to be cleanly unloaded and reloaded.
3236 Improve header file function name parsing.
3239 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3240 or CAPABILITY handshake as required by RFCs.
3243 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3245 *) Introduce limits to prevent malicious keys being able to
3246 cause a denial of service. (CVE-2006-2940)
3247 [Steve Henson, Bodo Moeller]
3249 *) Fix ASN.1 parsing of certain invalid structures that can result
3250 in a denial of service. (CVE-2006-2937) [Steve Henson]
3252 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3253 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3255 *) Fix SSL client code which could crash if connecting to a
3256 malicious SSLv2 server. (CVE-2006-4343)
3257 [Tavis Ormandy and Will Drewry, Google Security Team]
3259 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3260 match only those. Before that, "AES256-SHA" would be interpreted
3261 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3262 the same strength classification in 0.9.7h) as we currently only
3263 have a single AES bit in the ciphersuite description bitmap.
3264 That change, however, also applied to ciphersuite strings such as
3265 "RC4-MD5" that intentionally matched multiple ciphersuites --
3266 namely, SSL 2.0 ciphersuites in addition to the more common ones
3267 from SSL 3.0/TLS 1.0.
3269 So we change the selection algorithm again: Naming an explicit
3270 ciphersuite selects this one ciphersuite, and any other similar
3271 ciphersuite (same bitmap) from *other* protocol versions.
3272 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3273 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3275 Since SSL 2.0 does not have any ciphersuites for which the
3276 128/256 bit distinction would be relevant, this works for now.
3277 The proper fix will be to use different bits for AES128 and
3278 AES256, which would have avoided the problems from the beginning;
3279 however, bits are scarce, so we can only do this in a new release
3280 (not just a patchlevel) when we can change the SSL_CIPHER
3281 definition to split the single 'unsigned long mask' bitmap into
3282 multiple values to extend the available space.
3286 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3288 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3289 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3291 *) Add AES IGE and biIGE modes.
3294 *) Change the Unix randomness entropy gathering to use poll() when
3295 possible instead of select(), since the latter has some
3296 undesirable limitations.
3297 [Darryl Miles via Richard Levitte and Bodo Moeller]
3299 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3300 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3301 cannot be implicitly activated as part of, e.g., the "AES" alias.
3302 However, please upgrade to OpenSSL 0.9.9[-dev] for
3303 non-experimental use of the ECC ciphersuites to get TLS extension
3304 support, which is required for curve and point format negotiation
3305 to avoid potential handshake problems.
3308 *) Disable rogue ciphersuites:
3310 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3311 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3312 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3314 The latter two were purportedly from
3315 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3318 Also deactivate the remaining ciphersuites from
3319 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3320 unofficial, and the ID has long expired.
3323 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3324 dual-core machines) and other potential thread-safety issues.
3327 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3328 versions), which is now available for royalty-free use
3329 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3330 Also, add Camellia TLS ciphersuites from RFC 4132.
3332 To minimize changes between patchlevels in the OpenSSL 0.9.8
3333 series, Camellia remains excluded from compilation unless OpenSSL
3334 is configured with 'enable-camellia'.
3337 *) Disable the padding bug check when compression is in use. The padding
3338 bug check assumes the first packet is of even length, this is not
3339 necessarily true if compresssion is enabled and can result in false
3340 positives causing handshake failure. The actual bug test is ancient
3341 code so it is hoped that implementations will either have fixed it by
3342 now or any which still have the bug do not support compression.
3345 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3347 *) When applying a cipher rule check to see if string match is an explicit
3348 cipher suite and only match that one cipher suite if it is.
3351 *) Link in manifests for VC++ if needed.
3352 [Austin Ziegler <halostatue@gmail.com>]
3354 *) Update support for ECC-based TLS ciphersuites according to
3355 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3356 TLS extensions, which are supported starting with the 0.9.9
3357 branch, not in the OpenSSL 0.9.8 branch).
3360 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3361 opaque EVP_CIPHER_CTX handling.
3364 *) Fixes and enhancements to zlib compression code. We now only use
3365 "zlib1.dll" and use the default __cdecl calling convention on Win32
3366 to conform with the standards mentioned here:
3367 http://www.zlib.net/DLL_FAQ.txt
3368 Static zlib linking now works on Windows and the new --with-zlib-include
3369 --with-zlib-lib options to Configure can be used to supply the location
3370 of the headers and library. Gracefully handle case where zlib library
3374 *) Several fixes and enhancements to the OID generation code. The old code
3375 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3376 handle numbers larger than ULONG_MAX, truncated printing and had a
3377 non standard OBJ_obj2txt() behaviour.
3380 *) Add support for building of engines under engine/ as shared libraries
3381 under VC++ build system.
3384 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3385 Hopefully, we will not see any false combination of paths any more.
3388 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3390 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3391 (part of SSL_OP_ALL). This option used to disable the
3392 countermeasure against man-in-the-middle protocol-version
3393 rollback in the SSL 2.0 server implementation, which is a bad
3394 idea. (CVE-2005-2969)
3396 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3397 for Information Security, National Institute of Advanced Industrial
3398 Science and Technology [AIST], Japan)]
3400 *) Add two function to clear and return the verify parameter flags.
3403 *) Keep cipherlists sorted in the source instead of sorting them at
3404 runtime, thus removing the need for a lock.
3407 *) Avoid some small subgroup attacks in Diffie-Hellman.
3408 [Nick Mathewson and Ben Laurie]
3410 *) Add functions for well-known primes.
3413 *) Extended Windows CE support.
3414 [Satoshi Nakamura and Andy Polyakov]
3416 *) Initialize SSL_METHOD structures at compile time instead of during
3417 runtime, thus removing the need for a lock.
3420 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3421 attempting to decrypt each encrypted key in turn. Add support to
3425 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3427 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3430 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3433 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3434 key into the same file any more.
3437 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3440 *) Add -utf8 command line and config file option to 'ca'.
3441 [Stefan <stf@udoma.org]
3443 *) Removed the macro des_crypt(), as it seems to conflict with some
3444 libraries. Use DES_crypt().
3447 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3448 involves renaming the source and generated shared-libs for
3449 both. The engines will accept the corrected or legacy ids
3450 ('ncipher' and '4758_cca' respectively) when binding. NB,
3451 this only applies when building 'shared'.
3452 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3454 *) Add attribute functions to EVP_PKEY structure. Modify
3455 PKCS12_create() to recognize a CSP name attribute and
3456 use it. Make -CSP option work again in pkcs12 utility.
3459 *) Add new functionality to the bn blinding code:
3460 - automatic re-creation of the BN_BLINDING parameters after
3461 a fixed number of uses (currently 32)
3462 - add new function for parameter creation
3463 - introduce flags to control the update behaviour of the
3464 BN_BLINDING parameters
3465 - hide BN_BLINDING structure
3466 Add a second BN_BLINDING slot to the RSA structure to improve
3467 performance when a single RSA object is shared among several
3471 *) Add support for DTLS.
3472 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3474 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3475 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3478 *) Remove buggy and incomplete DH cert support from
3479 ssl/ssl_rsa.c and ssl/s3_both.c
3482 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3483 the apps/openssl applications.
3486 *) Compile clean with "-Wall -Wmissing-prototypes
3487 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3488 DEBUG_SAFESTACK must also be set.
3491 *) Change ./Configure so that certain algorithms can be disabled by default.
3492 The new counterpiece to "no-xxx" is "enable-xxx".
3494 The patented RC5 and MDC2 algorithms will now be disabled unless
3495 "enable-rc5" and "enable-mdc2", respectively, are specified.
3497 (IDEA remains enabled despite being patented. This is because IDEA
3498 is frequently required for interoperability, and there is no license
3499 fee for non-commercial use. As before, "no-idea" can be used to
3500 avoid this algorithm.)
3504 *) Add processing of proxy certificates (see RFC 3820). This work was
3505 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3506 EGEE (Enabling Grids for E-science in Europe).
3509 *) RC4 performance overhaul on modern architectures/implementations, such
3510 as Intel P4, IA-64 and AMD64.
3513 *) New utility extract-section.pl. This can be used specify an alternative
3514 section number in a pod file instead of having to treat each file as
3515 a separate case in Makefile. This can be done by adding two lines to the
3518 =for comment openssl_section:XXX
3520 The blank line is mandatory.
3524 *) New arguments -certform, -keyform and -pass for s_client and s_server
3525 to allow alternative format key and certificate files and passphrase
3529 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3530 update associated structures and add various utility functions.
3532 Add new policy related verify parameters, include policy checking in
3533 standard verify code. Enhance 'smime' application with extra parameters
3534 to support policy checking and print out.
3537 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3538 Nehemiah processors. These extensions support AES encryption in hardware
3539 as well as RNG (though RNG support is currently disabled).
3540 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3542 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3545 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3546 [Andy Polyakov and a number of other people]
3548 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3549 implementation contributed by IBM.
3550 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3552 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3553 exponent rather than 'unsigned long'. There is a corresponding change to
3554 the new 'rsa_keygen' element of the RSA_METHOD structure.
3555 [Jelte Jansen, Geoff Thorpe]
3557 *) Functionality for creating the initial serial number file is now
3558 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3560 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3561 number file to 1, which is bound to cause problems. To avoid
3562 the problems while respecting compatibility between different 0.9.7
3563 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3564 CA.pl for serial number initialization. With the new release 0.9.8,
3565 we can fix the problem directly in the 'ca' utility.)
3568 *) Reduced header interdepencies by declaring more opaque objects in
3569 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3570 give fewer recursive includes, which could break lazy source code - so
3571 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3572 developers should define this symbol when building and using openssl to
3573 ensure they track the recommended behaviour, interfaces, [etc], but
3574 backwards-compatible behaviour prevails when this isn't defined.
3577 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3580 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3581 This will generate a random key of the appropriate length based on the
3582 cipher context. The EVP_CIPHER can provide its own random key generation
3583 routine to support keys of a specific form. This is used in the des and
3584 3des routines to generate a key of the correct parity. Update S/MIME
3585 code to use new functions and hence generate correct parity DES keys.
3586 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3587 valid (weak or incorrect parity).
3590 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3591 as looking them up. This is useful when the verified structure may contain
3592 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3593 present unless the new PKCS7_NO_CRL flag is asserted.
3596 *) Extend ASN1 oid configuration module. It now additionally accepts the
3599 shortName = some long name, 1.2.3.4
3602 *) Reimplemented the BN_CTX implementation. There is now no more static
3603 limitation on the number of variables it can handle nor the depth of the
3604 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3605 information can now expand as required, and rather than having a single
3606 static array of bignums, BN_CTX now uses a linked-list of such arrays
3607 allowing it to expand on demand whilst maintaining the usefulness of
3608 BN_CTX's "bundling".
3611 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3612 to allow all RSA operations to function using a single BN_CTX.
3615 *) Preliminary support for certificate policy evaluation and checking. This
3616 is initially intended to pass the tests outlined in "Conformance Testing
3617 of Relying Party Client Certificate Path Processing Logic" v1.07.
3620 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3621 remained unused and not that useful. A variety of other little bignum
3622 tweaks and fixes have also been made continuing on from the audit (see
3626 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3627 associated ASN1, EVP and SSL functions and old ASN1 macros.
3630 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3631 and this should never fail. So the return value from the use of
3632 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3633 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3636 *) BN_CTX_get() should return zero-valued bignums, providing the same
3637 initialised value as BN_new().
3638 [Geoff Thorpe, suggested by Ulf Möller]
3640 *) Support for inhibitAnyPolicy certificate extension.
3643 *) An audit of the BIGNUM code is underway, for which debugging code is
3644 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3645 is considered valid when processing BIGNUMs, and causes execution to
3646 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3647 further steps are taken to deliberately pollute unused data in BIGNUM
3648 structures to try and expose faulty code further on. For now, openssl will
3649 (in its default mode of operation) continue to tolerate the inconsistent
3650 forms that it has tolerated in the past, but authors and packagers should
3651 consider trying openssl and their own applications when compiled with
3652 these debugging symbols defined. It will help highlight potential bugs in
3653 their own code, and will improve the test coverage for OpenSSL itself. At
3654 some point, these tighter rules will become openssl's default to improve
3655 maintainability, though the assert()s and other overheads will remain only
3656 in debugging configurations. See bn.h for more details.
3657 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3659 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3660 that can only be obtained through BN_CTX_new() (which implicitly
3661 initialises it). The presence of this function only made it possible
3662 to overwrite an existing structure (and cause memory leaks).
3665 *) Because of the callback-based approach for implementing LHASH as a
3666 template type, lh_insert() adds opaque objects to hash-tables and
3667 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3668 to clean up those corresponding objects before destroying the hash table
3669 (and losing the object pointers). So some over-zealous constifications in
3670 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3671 objects as "const" and the lh_doall[_arg] callback wrappers are not
3672 prototyped to have "const" restrictions on the object pointers they are
3673 given (and so aren't required to cast them away any more).
3676 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3677 (speed) prefers to use its own implementation. The two implementations
3678 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3679 its object type properly exposed (MS_TM) instead of casting to/from "char
3680 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3681 aren't necessarily the greatest nomenclatures - but this is what was used
3682 internally to the implementation so I've used that for now.
3685 *) Ensure that deprecated functions do not get compiled when
3686 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3687 the self-tests were still using deprecated key-generation functions so
3688 these have been updated also.
3691 *) Reorganise PKCS#7 code to separate the digest location functionality
3692 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3693 New function PKCS7_set_digest() to set the digest type for PKCS#7
3694 digestedData type. Add additional code to correctly generate the
3695 digestedData type and add support for this type in PKCS7 initialization
3699 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3700 structure of type "other".
3703 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3704 sure the loop does correctly stop and breaking ("division by zero")
3705 modulus operations are not performed. The (pre-generated) prime
3706 table crypto/bn/bn_prime.h was already correct, but it could not be
3707 re-generated on some platforms because of the "division by zero"
3708 situation in the script.
3709 [Ralf S. Engelschall]
3711 *) Update support for ECC-based TLS ciphersuites according to
3712 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3713 SHA-1 now is only used for "small" curves (where the
3714 representation of a field element takes up to 24 bytes); for
3715 larger curves, the field element resulting from ECDH is directly
3716 used as premaster secret.
3717 [Douglas Stebila (Sun Microsystems Laboratories)]
3719 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3720 curve secp160r1 to the tests.
3721 [Douglas Stebila (Sun Microsystems Laboratories)]
3723 *) Add the possibility to load symbols globally with DSO.
3724 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3726 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3727 control of the error stack.
3730 *) Add support for STORE in ENGINE.
3733 *) Add the STORE type. The intention is to provide a common interface
3734 to certificate and key stores, be they simple file-based stores, or
3735 HSM-type store, or LDAP stores, or...
3736 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3739 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3740 pass a list of arguments to any function as well as provide a way
3741 for a function to pass data back to the caller.
3744 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3745 works like BUF_strdup() but can be used to duplicate a portion of
3746 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3750 *) Add the function sk_find_ex() which works like sk_find(), but will
3751 return an index to an element even if an exact match couldn't be
3752 found. The index is guaranteed to point at the element where the
3753 searched-for key would be inserted to preserve sorting order.
3756 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3757 takes an extra flags argument for optional functionality. Currently,
3758 the following flags are defined:
3760 OBJ_BSEARCH_VALUE_ON_NOMATCH
3761 This one gets OBJ_bsearch_ex() to return a pointer to the first
3762 element where the comparing function returns a negative or zero
3765 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3766 This one gets OBJ_bsearch_ex() to return a pointer to the first
3767 element where the comparing function returns zero. This is useful
3768 if there are more than one element where the comparing function
3772 *) Make it possible to create self-signed certificates with 'openssl ca'
3773 in such a way that the self-signed certificate becomes part of the
3774 CA database and uses the same mechanisms for serial number generation
3775 as all other certificate signing. The new flag '-selfsign' enables
3776 this functionality. Adapt CA.sh and CA.pl.in.
3779 *) Add functionality to check the public key of a certificate request
3780 against a given private. This is useful to check that a certificate
3781 request can be signed by that key (self-signing).
3784 *) Make it possible to have multiple active certificates with the same
3785 subject in the CA index file. This is done only if the keyword
3786 'unique_subject' is set to 'no' in the main CA section (default
3787 if 'CA_default') of the configuration file. The value is saved
3788 with the database itself in a separate index attribute file,
3789 named like the index file with '.attr' appended to the name.
3792 *) Generate muti valued AVAs using '+' notation in config files for
3796 *) Support for nameConstraints certificate extension.
3799 *) Support for policyConstraints certificate extension.
3802 *) Support for policyMappings certificate extension.
3805 *) Make sure the default DSA_METHOD implementation only uses its
3806 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3807 and change its own handlers to be NULL so as to remove unnecessary
3808 indirection. This lets alternative implementations fallback to the
3809 default implementation more easily.
3812 *) Support for directoryName in GeneralName related extensions
3816 *) Make it possible to link applications using Makefile.shared.
3817 Make that possible even when linking against static libraries!
3820 *) Support for single pass processing for S/MIME signing. This now
3821 means that S/MIME signing can be done from a pipe, in addition
3822 cleartext signing (multipart/signed type) is effectively streaming
3823 and the signed data does not need to be all held in memory.
3825 This is done with a new flag PKCS7_STREAM. When this flag is set
3826 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3827 is done after the data is output (and digests calculated) in
3828 SMIME_write_PKCS7().
3831 *) Add full support for -rpath/-R, both in shared libraries and
3832 applications, at least on the platforms where it's known how
3836 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3837 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3838 will now compute a table of multiples of the generator that
3839 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3840 faster (notably in the case of a single point multiplication,
3841 scalar * generator).
3842 [Nils Larsch, Bodo Moeller]
3844 *) IPv6 support for certificate extensions. The various extensions
3845 which use the IP:a.b.c.d can now take IPv6 addresses using the
3846 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3850 *) Added an ENGINE that implements RSA by performing private key
3851 exponentiations with the GMP library. The conversions to and from
3852 GMP's mpz_t format aren't optimised nor are any montgomery forms
3853 cached, and on x86 it appears OpenSSL's own performance has caught up.
3854 However there are likely to be other architectures where GMP could
3855 provide a boost. This ENGINE is not built in by default, but it can be
3856 specified at Configure time and should be accompanied by the necessary
3857 linker additions, eg;
3858 ./config -DOPENSSL_USE_GMP -lgmp
3861 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3862 testing availability of engines with "-t" - the old behaviour is
3863 produced by increasing the feature's verbosity with "-tt".
3866 *) ECDSA routines: under certain error conditions uninitialized BN objects
3867 could be freed. Solution: make sure initialization is performed early
3868 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3872 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3873 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3874 software implementations. For DSA and DH, parameter generation can
3875 also be overriden by providing the appropriate method callbacks.
3878 *) Change the "progress" mechanism used in key-generation and
3879 primality testing to functions that take a new BN_GENCB pointer in
3880 place of callback/argument pairs. The new API functions have "_ex"
3881 postfixes and the older functions are reimplemented as wrappers for
3882 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3883 declarations of the old functions to help (graceful) attempts to
3884 migrate to the new functions. Also, the new key-generation API
3885 functions operate on a caller-supplied key-structure and return
3886 success/failure rather than returning a key or NULL - this is to
3887 help make "keygen" another member function of RSA_METHOD etc.
3889 Example for using the new callback interface:
3891 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3895 BN_GENCB_set(&my_cb, my_callback, my_arg);
3897 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3898 /* For the meaning of a, b in calls to my_callback(), see the
3899 * documentation of the function that calls the callback.
3900 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3901 * my_callback should return 1 if it wants BN_is_prime_ex()
3902 * to continue, or 0 to stop.
3907 *) Change the ZLIB compression method to be stateful, and make it
3908 available to TLS with the number defined in
3909 draft-ietf-tls-compression-04.txt.
3912 *) Add the ASN.1 structures and functions for CertificatePair, which
3913 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3915 CertificatePair ::= SEQUENCE {
3916 forward [0] Certificate OPTIONAL,
3917 reverse [1] Certificate OPTIONAL,
3918 -- at least one of the pair shall be present -- }
3920 Also implement the PEM functions to read and write certificate
3921 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3923 This needed to be defined, mostly for the sake of the LDAP
3924 attribute crossCertificatePair, but may prove useful elsewhere as
3928 *) Make it possible to inhibit symlinking of shared libraries in
3929 Makefile.shared, for Cygwin's sake.
3932 *) Extend the BIGNUM API by creating a function
3933 void BN_set_negative(BIGNUM *a, int neg);
3934 and a macro that behave like
3935 int BN_is_negative(const BIGNUM *a);
3937 to avoid the need to access 'a->neg' directly in applications.
3940 *) Implement fast modular reduction for pseudo-Mersenne primes
3941 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3942 EC_GROUP_new_curve_GFp() will now automatically use this
3944 [Nils Larsch <nla@trustcenter.de>]
3946 *) Add new lock type (CRYPTO_LOCK_BN).
3949 *) Change the ENGINE framework to automatically load engines
3950 dynamically from specific directories unless they could be
3951 found to already be built in or loaded. Move all the
3952 current engines except for the cryptodev one to a new
3954 The engines in engines/ are built as shared libraries if
3955 the "shared" options was given to ./Configure or ./config.
3956 Otherwise, they are inserted in libcrypto.a.
3957 /usr/local/ssl/engines is the default directory for dynamic
3958 engines, but that can be overriden at configure time through
3959 the usual use of --prefix and/or --openssldir, and at run
3960 time with the environment variable OPENSSL_ENGINES.
3961 [Geoff Thorpe and Richard Levitte]
3963 *) Add Makefile.shared, a helper makefile to build shared
3964 libraries. Adapt Makefile.org.
3967 *) Add version info to Win32 DLLs.
3968 [Peter 'Luna' Runestig" <peter@runestig.com>]
3970 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3971 can be added using this API to created arbitrary PKCS#12
3972 files while avoiding the low level API.
3974 New options to PKCS12_create(), key or cert can be NULL and
3975 will then be omitted from the output file. The encryption
3976 algorithm NIDs can be set to -1 for no encryption, the mac
3977 iteration count can be set to 0 to omit the mac.
3979 Enhance pkcs12 utility by making the -nokeys and -nocerts
3980 options work when creating a PKCS#12 file. New option -nomac
3981 to omit the mac, NONE can be set for an encryption algorithm.
3982 New code is modified to use the enhanced PKCS12_create()
3983 instead of the low level API.
3986 *) Extend ASN1 encoder to support indefinite length constructed
3987 encoding. This can output sequences tags and octet strings in
3988 this form. Modify pk7_asn1.c to support indefinite length
3989 encoding. This is experimental and needs additional code to
3990 be useful, such as an ASN1 bio and some enhanced streaming
3993 Extend template encode functionality so that tagging is passed
3994 down to the template encoder.
3997 *) Let 'openssl req' fail if an argument to '-newkey' is not
3998 recognized instead of using RSA as a default.
4001 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4002 As these are not official, they are not included in "ALL";
4003 the "ECCdraft" ciphersuite group alias can be used to select them.
4004 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4006 *) Add ECDH engine support.
4007 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4009 *) Add ECDH in new directory crypto/ecdh/.
4010 [Douglas Stebila (Sun Microsystems Laboratories)]
4012 *) Let BN_rand_range() abort with an error after 100 iterations
4013 without success (which indicates a broken PRNG).
4016 *) Change BN_mod_sqrt() so that it verifies that the input value
4017 is really the square of the return value. (Previously,
4018 BN_mod_sqrt would show GIGO behaviour.)
4021 *) Add named elliptic curves over binary fields from X9.62, SECG,
4022 and WAP/WTLS; add OIDs that were still missing.
4024 [Sheueling Chang Shantz and Douglas Stebila
4025 (Sun Microsystems Laboratories)]
4027 *) Extend the EC library for elliptic curves over binary fields
4028 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4031 EC_GF2m_simple_method
4035 EC_GROUP_new_curve_GF2m
4036 EC_GROUP_set_curve_GF2m
4037 EC_GROUP_get_curve_GF2m
4038 EC_POINT_set_affine_coordinates_GF2m
4039 EC_POINT_get_affine_coordinates_GF2m
4040 EC_POINT_set_compressed_coordinates_GF2m
4042 Point compression for binary fields is disabled by default for
4043 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4046 As binary polynomials are represented as BIGNUMs, various members
4047 of the EC_GROUP and EC_POINT data structures can be shared
4048 between the implementations for prime fields and binary fields;
4049 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4050 are essentially identical to their ..._GFp counterparts.
4051 (For simplicity, the '..._GFp' prefix has been dropped from
4052 various internal method names.)
4054 An internal 'field_div' method (similar to 'field_mul' and
4055 'field_sqr') has been added; this is used only for binary fields.
4057 [Sheueling Chang Shantz and Douglas Stebila
4058 (Sun Microsystems Laboratories)]
4060 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4061 through methods ('mul', 'precompute_mult').
4063 The generic implementations (now internally called 'ec_wNAF_mul'
4064 and 'ec_wNAF_precomputed_mult') remain the default if these
4065 methods are undefined.
4067 [Sheueling Chang Shantz and Douglas Stebila
4068 (Sun Microsystems Laboratories)]
4070 *) New function EC_GROUP_get_degree, which is defined through
4071 EC_METHOD. For curves over prime fields, this returns the bit
4072 length of the modulus.
4074 [Sheueling Chang Shantz and Douglas Stebila
4075 (Sun Microsystems Laboratories)]
4077 *) New functions EC_GROUP_dup, EC_POINT_dup.
4078 (These simply call ..._new and ..._copy).
4080 [Sheueling Chang Shantz and Douglas Stebila
4081 (Sun Microsystems Laboratories)]
4083 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4084 Polynomials are represented as BIGNUMs (where the sign bit is not
4085 used) in the following functions [macros]:
4088 BN_GF2m_sub [= BN_GF2m_add]
4089 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4090 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4091 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4093 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4094 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4095 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4096 BN_GF2m_cmp [= BN_ucmp]
4098 (Note that only the 'mod' functions are actually for fields GF(2^m).
4099 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4101 For some functions, an the irreducible polynomial defining a
4102 field can be given as an 'unsigned int[]' with strictly
4103 decreasing elements giving the indices of those bits that are set;
4104 i.e., p[] represents the polynomial
4105 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4107 p[0] > p[1] > ... > p[k] = 0.
4108 This applies to the following functions:
4113 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4114 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4116 BN_GF2m_mod_sqrt_arr
4117 BN_GF2m_mod_solve_quad_arr
4121 Conversion can be performed by the following functions:
4126 bntest.c has additional tests for binary polynomial arithmetic.
4128 Two implementations for BN_GF2m_mod_div() are available.
4129 The default algorithm simply uses BN_GF2m_mod_inv() and
4130 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4131 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4132 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4134 [Sheueling Chang Shantz and Douglas Stebila
4135 (Sun Microsystems Laboratories)]
4137 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4138 functionality is disabled at compile-time.
4139 [Douglas Stebila <douglas.stebila@sun.com>]
4141 *) Change default behaviour of 'openssl asn1parse' so that more
4142 information is visible when viewing, e.g., a certificate:
4144 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4145 mode the content of non-printable OCTET STRINGs is output in a
4146 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4147 avoid the appearance of a printable string.
4148 [Nils Larsch <nla@trustcenter.de>]
4150 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4152 EC_GROUP_set_asn1_flag()
4153 EC_GROUP_get_asn1_flag()
4154 EC_GROUP_set_point_conversion_form()
4155 EC_GROUP_get_point_conversion_form()
4156 These control ASN1 encoding details:
4157 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4158 has been set to OPENSSL_EC_NAMED_CURVE.
4159 - Points are encoded in uncompressed form by default; options for
4160 asn1_for are as for point2oct, namely
4161 POINT_CONVERSION_COMPRESSED
4162 POINT_CONVERSION_UNCOMPRESSED
4163 POINT_CONVERSION_HYBRID
4165 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4168 EC_GROUP_get0_seed()
4169 EC_GROUP_get_seed_len()
4170 This is used only for ASN1 purposes (so far).
4171 [Nils Larsch <nla@trustcenter.de>]
4173 *) Add 'field_type' member to EC_METHOD, which holds the NID
4174 of the appropriate field type OID. The new function
4175 EC_METHOD_get_field_type() returns this value.
4176 [Nils Larsch <nla@trustcenter.de>]
4181 EC_POINT_point2hex()
4182 EC_POINT_hex2point()
4183 providing useful interfaces to EC_POINT_point2oct() and
4184 EC_POINT_oct2point().
4185 [Nils Larsch <nla@trustcenter.de>]
4187 *) Change internals of the EC library so that the functions
4188 EC_GROUP_set_generator()
4189 EC_GROUP_get_generator()
4190 EC_GROUP_get_order()
4191 EC_GROUP_get_cofactor()
4192 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4193 to methods, which would lead to unnecessary code duplication when
4194 adding different types of curves.
4195 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4197 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4198 arithmetic, and such that modified wNAFs are generated
4199 (which avoid length expansion in many cases).
4202 *) Add a function EC_GROUP_check_discriminant() (defined via
4203 EC_METHOD) that verifies that the curve discriminant is non-zero.
4205 Add a function EC_GROUP_check() that makes some sanity tests
4206 on a EC_GROUP, its generator and order. This includes
4207 EC_GROUP_check_discriminant().
4208 [Nils Larsch <nla@trustcenter.de>]
4210 *) Add ECDSA in new directory crypto/ecdsa/.
4212 Add applications 'openssl ecparam' and 'openssl ecdsa'
4213 (these are based on 'openssl dsaparam' and 'openssl dsa').
4215 ECDSA support is also included in various other files across the
4216 library. Most notably,
4217 - 'openssl req' now has a '-newkey ecdsa:file' option;
4218 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4219 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4220 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4221 them suitable for ECDSA where domain parameters must be
4222 extracted before the specific public key;
4223 - ECDSA engine support has been added.
4224 [Nils Larsch <nla@trustcenter.de>]
4226 *) Include some named elliptic curves, and add OIDs from X9.62,
4227 SECG, and WAP/WTLS. Each curve can be obtained from the new
4229 EC_GROUP_new_by_curve_name(),
4230 and the list of available named curves can be obtained with
4231 EC_get_builtin_curves().
4232 Also add a 'curve_name' member to EC_GROUP objects, which can be
4234 EC_GROUP_set_curve_name()
4235 EC_GROUP_get_curve_name()
4236 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4238 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4239 was actually never needed) and in BN_mul(). The removal in BN_mul()
4240 required a small change in bn_mul_part_recursive() and the addition
4241 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4242 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4243 bn_sub_words() and bn_add_words() except they take arrays with
4247 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4249 *) Cleanse PEM buffers before freeing them since they may contain
4251 [Benjamin Bennett <ben@psc.edu>]
4253 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4254 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4255 authentication-only ciphersuites.
4258 *) Since AES128 and AES256 share a single mask bit in the logic of
4259 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4260 kludge to work properly if AES128 is available and AES256 isn't.
4263 *) Expand security boundary to match 1.1.1 module.
4266 *) Remove redundant features: hash file source, editing of test vectors
4267 modify fipsld to use external fips_premain.c signature.
4270 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4271 run algorithm test programs.
4274 *) Make algorithm test programs more tolerant of whitespace.
4277 *) Have SSL/TLS server implementation tolerate "mismatched" record
4278 protocol version while receiving ClientHello even if the
4279 ClientHello is fragmented. (The server can't insist on the
4280 particular protocol version it has chosen before the ServerHello
4281 message has informed the client about his choice.)
4284 *) Load error codes if they are not already present instead of using a
4285 static variable. This allows them to be cleanly unloaded and reloaded.
4288 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4290 *) Introduce limits to prevent malicious keys being able to
4291 cause a denial of service. (CVE-2006-2940)
4292 [Steve Henson, Bodo Moeller]
4294 *) Fix ASN.1 parsing of certain invalid structures that can result
4295 in a denial of service. (CVE-2006-2937) [Steve Henson]
4297 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4298 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4300 *) Fix SSL client code which could crash if connecting to a
4301 malicious SSLv2 server. (CVE-2006-4343)
4302 [Tavis Ormandy and Will Drewry, Google Security Team]
4304 *) Change ciphersuite string processing so that an explicit
4305 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4306 will no longer include "AES128-SHA"), and any other similar
4307 ciphersuite (same bitmap) from *other* protocol versions (so that
4308 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4309 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4310 changes from 0.9.8b and 0.9.8d.
4313 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4315 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4316 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4318 *) Change the Unix randomness entropy gathering to use poll() when
4319 possible instead of select(), since the latter has some
4320 undesirable limitations.
4321 [Darryl Miles via Richard Levitte and Bodo Moeller]
4323 *) Disable rogue ciphersuites:
4325 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4326 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4327 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4329 The latter two were purportedly from
4330 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4333 Also deactive the remaining ciphersuites from
4334 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4335 unofficial, and the ID has long expired.
4338 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4339 dual-core machines) and other potential thread-safety issues.
4342 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4344 *) Adapt fipsld and the build system to link against the validated FIPS
4345 module in FIPS mode.
4348 *) Fixes for VC++ 2005 build under Windows.
4351 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4352 from a Windows bash shell such as MSYS. It is autodetected from the
4353 "config" script when run from a VC++ environment. Modify standard VC++
4354 build to use fipscanister.o from the GNU make build.
4357 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4359 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4360 The value now differs depending on if you build for FIPS or not.
4361 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4362 safely run with a non-FIPSed libcrypto, as it may crash because of
4363 the difference induced by this change.
4366 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4368 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4369 (part of SSL_OP_ALL). This option used to disable the
4370 countermeasure against man-in-the-middle protocol-version
4371 rollback in the SSL 2.0 server implementation, which is a bad
4372 idea. (CVE-2005-2969)
4374 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4375 for Information Security, National Institute of Advanced Industrial
4376 Science and Technology [AIST], Japan)]
4378 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4379 mainly for FIPS compliance and not fully integrated at this stage.
4382 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4383 the exponentiation using a fixed-length exponent. (Otherwise,
4384 the information leaked through timing could expose the secret key
4385 after many signatures; cf. Bleichenbacher's attack on DSA with
4389 *) Make a new fixed-window mod_exp implementation the default for
4390 RSA, DSA, and DH private-key operations so that the sequence of
4391 squares and multiplies and the memory access pattern are
4392 independent of the particular secret key. This will mitigate
4393 cache-timing and potential related attacks.
4395 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4396 and this is automatically used by BN_mod_exp_mont() if the new flag
4397 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4398 will use this BN flag for private exponents unless the flag
4399 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4400 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4402 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4404 *) Change the client implementation for SSLv23_method() and
4405 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4406 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4407 (Previously, the SSL 2.0 backwards compatible Client Hello
4408 message format would be used even with SSL_OP_NO_SSLv2.)
4411 *) Add support for smime-type MIME parameter in S/MIME messages which some
4415 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4416 a threadsafe manner. Modify rsa code to use new function and add calls
4417 to dsa and dh code (which had race conditions before).
4420 *) Include the fixed error library code in the C error file definitions
4421 instead of fixing them up at runtime. This keeps the error code
4422 structures constant.
4425 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4427 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4430 *) Fixes for newer kerberos headers. NB: the casts are needed because
4431 the 'length' field is signed on one version and unsigned on another
4432 with no (?) obvious way to tell the difference, without these VC++
4433 complains. Also the "definition" of FAR (blank) is no longer included
4434 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4435 some needed definitions.
4438 *) Undo Cygwin change.
4441 *) Added support for proxy certificates according to RFC 3820.
4442 Because they may be a security thread to unaware applications,
4443 they must be explicitely allowed in run-time. See
4444 docs/HOWTO/proxy_certificates.txt for further information.
4447 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4449 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4450 server and client random values. Previously
4451 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4452 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4454 This change has negligible security impact because:
4456 1. Server and client random values still have 24 bytes of pseudo random
4459 2. Server and client random values are sent in the clear in the initial
4462 3. The master secret is derived using the premaster secret (48 bytes in
4463 size for static RSA ciphersuites) as well as client server and random
4466 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4469 [Stephen Henson, reported by UK NISCC]
4471 *) Use Windows randomness collection on Cygwin.
4474 *) Fix hang in EGD/PRNGD query when communication socket is closed
4475 prematurely by EGD/PRNGD.
4476 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4478 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4481 *) Back-port of selected performance improvements from development
4482 branch, as well as improved support for PowerPC platforms.
4485 *) Add lots of checks for memory allocation failure, error codes to indicate
4486 failure and freeing up memory if a failure occurs.
4487 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4489 *) Add new -passin argument to dgst.
4492 *) Perform some character comparisons of different types in X509_NAME_cmp:
4493 this is needed for some certificates that reencode DNs into UTF8Strings
4494 (in violation of RFC3280) and can't or wont issue name rollover
4498 *) Make an explicit check during certificate validation to see that
4499 the CA setting in each certificate on the chain is correct. As a
4500 side effect always do the following basic checks on extensions,
4501 not just when there's an associated purpose to the check:
4503 - if there is an unhandled critical extension (unless the user
4504 has chosen to ignore this fault)
4505 - if the path length has been exceeded (if one is set at all)
4506 - that certain extensions fit the associated purpose (if one has
4510 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4512 *) Avoid a race condition when CRLs are checked in a multi threaded
4513 environment. This would happen due to the reordering of the revoked
4514 entries during signature checking and serial number lookup. Now the
4515 encoding is cached and the serial number sort performed under a lock.
4516 Add new STACK function sk_is_sorted().
4519 *) Add Delta CRL to the extension code.
4522 *) Various fixes to s3_pkt.c so alerts are sent properly.
4523 [David Holmes <d.holmes@f5.com>]
4525 *) Reduce the chances of duplicate issuer name and serial numbers (in
4526 violation of RFC3280) using the OpenSSL certificate creation utilities.
4527 This is done by creating a random 64 bit value for the initial serial
4528 number when a serial number file is created or when a self signed
4529 certificate is created using 'openssl req -x509'. The initial serial
4530 number file is created using 'openssl x509 -next_serial' in CA.pl
4531 rather than being initialized to 1.
4534 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4536 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4537 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4538 [Joe Orton, Steve Henson]
4540 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4542 [Joe Orton, Steve Henson]
4544 *) Make it possible to have multiple active certificates with the same
4545 subject in the CA index file. This is done only if the keyword
4546 'unique_subject' is set to 'no' in the main CA section (default
4547 if 'CA_default') of the configuration file. The value is saved
4548 with the database itself in a separate index attribute file,
4549 named like the index file with '.attr' appended to the name.
4552 *) X509 verify fixes. Disable broken certificate workarounds when
4553 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4554 keyUsage extension present. Don't accept CRLs with unhandled critical
4555 extensions: since verify currently doesn't process CRL extensions this
4556 rejects a CRL with *any* critical extensions. Add new verify error codes
4560 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4561 A clarification of RFC2560 will require the use of OCTET STRINGs and
4562 some implementations cannot handle the current raw format. Since OpenSSL
4563 copies and compares OCSP nonces as opaque blobs without any attempt at
4564 parsing them this should not create any compatibility issues.
4567 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4568 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4569 this HMAC (and other) operations are several times slower than OpenSSL
4573 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4574 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4576 *) Use the correct content when signing type "other".
4579 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4581 *) Fix various bugs revealed by running the NISCC test suite:
4583 Stop out of bounds reads in the ASN1 code when presented with
4584 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4586 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4588 If verify callback ignores invalid public key errors don't try to check
4589 certificate signature with the NULL public key.
4593 *) New -ignore_err option in ocsp application to stop the server
4594 exiting on the first error in a request.
4597 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4598 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4602 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4603 extra data after the compression methods not only for TLS 1.0
4604 but also for SSL 3.0 (as required by the specification).
4605 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4607 *) Change X509_certificate_type() to mark the key as exported/exportable
4608 when it's 512 *bits* long, not 512 bytes.
4611 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4612 blocks during encryption.
4615 *) Various fixes to base64 BIO and non blocking I/O. On write
4616 flushes were not handled properly if the BIO retried. On read
4617 data was not being buffered properly and had various logic bugs.
4618 This also affects blocking I/O when the data being decoded is a
4622 *) Various S/MIME bugfixes and compatibility changes:
4623 output correct application/pkcs7 MIME type if
4624 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4625 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4626 of files as .eml work). Correctly handle very long lines in MIME
4630 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4632 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4633 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4634 a protocol version number mismatch like a decryption error
4635 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4638 *) Turn on RSA blinding by default in the default implementation
4639 to avoid a timing attack. Applications that don't want it can call
4640 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4641 They would be ill-advised to do so in most cases.
4642 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4644 *) Change RSA blinding code so that it works when the PRNG is not
4645 seeded (in this case, the secret RSA exponent is abused as
4646 an unpredictable seed -- if it is not unpredictable, there
4647 is no point in blinding anyway). Make RSA blinding thread-safe
4648 by remembering the creator's thread ID in rsa->blinding and
4649 having all other threads use local one-time blinding factors
4650 (this requires more computation than sharing rsa->blinding, but
4651 avoids excessive locking; and if an RSA object is not shared
4652 between threads, blinding will still be very fast).
4655 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4656 ENGINE as defaults for all supported algorithms irrespective of
4657 the 'flags' parameter. 'flags' is now honoured, so applications
4658 should make sure they are passing it correctly.
4661 *) Target "mingw" now allows native Windows code to be generated in
4662 the Cygwin environment as well as with the MinGW compiler.
4665 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4667 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4668 via timing by performing a MAC computation even if incorrect
4669 block cipher padding has been found. This is a countermeasure
4670 against active attacks where the attacker has to distinguish
4671 between bad padding and a MAC verification error. (CVE-2003-0078)
4673 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4674 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4675 Martin Vuagnoux (EPFL, Ilion)]
4677 *) Make the no-err option work as intended. The intention with no-err
4678 is not to have the whole error stack handling routines removed from
4679 libcrypto, it's only intended to remove all the function name and
4680 reason texts, thereby removing some of the footprint that may not
4681 be interesting if those errors aren't displayed anyway.
4683 NOTE: it's still possible for any application or module to have it's
4684 own set of error texts inserted. The routines are there, just not
4685 used by default when no-err is given.
4688 *) Add support for FreeBSD on IA64.
4689 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4691 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4692 Kerberos function mit_des_cbc_cksum(). Before this change,
4693 the value returned by DES_cbc_cksum() was like the one from
4694 mit_des_cbc_cksum(), except the bytes were swapped.
4695 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4697 *) Allow an application to disable the automatic SSL chain building.
4698 Before this a rather primitive chain build was always performed in
4699 ssl3_output_cert_chain(): an application had no way to send the
4700 correct chain if the automatic operation produced an incorrect result.
4702 Now the chain builder is disabled if either:
4704 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4706 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4708 The reasoning behind this is that an application would not want the
4709 auto chain building to take place if extra chain certificates are
4710 present and it might also want a means of sending no additional
4711 certificates (for example the chain has two certificates and the
4715 *) Add the possibility to build without the ENGINE framework.
4716 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4718 *) Under Win32 gmtime() can return NULL: check return value in
4719 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4722 *) DSA routines: under certain error conditions uninitialized BN objects
4723 could be freed. Solution: make sure initialization is performed early
4724 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4725 Nils Larsch <nla@trustcenter.de> via PR#459)
4728 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4729 checked on reconnect on the client side, therefore session resumption
4730 could still fail with a "ssl session id is different" error. This
4731 behaviour is masked when SSL_OP_ALL is used due to
4732 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4733 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4734 followup to PR #377.
4737 *) IA-32 assembler support enhancements: unified ELF targets, support
4738 for SCO/Caldera platforms, fix for Cygwin shared build.
4741 *) Add support for FreeBSD on sparc64. As a consequence, support for
4742 FreeBSD on non-x86 processors is separate from x86 processors on
4743 the config script, much like the NetBSD support.
4744 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4746 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4748 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4751 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4752 code (06) was taken as the first octet of the session ID and the last
4753 octet was ignored consequently. As a result SSLv2 client side session
4754 caching could not have worked due to the session ID mismatch between
4756 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4760 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4761 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4765 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4766 seems that in spite of existing for more than a year, many application
4767 author have done nothing to provide the necessary callbacks, which
4768 means that this particular engine will not work properly anywhere.
4769 This is a very unfortunate situation which forces us, in the name
4770 of usability, to give the hw_ncipher.c a static lock, which is part
4772 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4773 appear in 0.9.8 or later. We EXPECT application authors to have
4774 dealt properly with this when 0.9.8 is released (unless we actually
4775 make such changes in the libcrypto locking code that changes will
4776 have to be made anyway).
4779 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4780 octets have been read, EOF or an error occurs. Without this change
4781 some truncated ASN1 structures will not produce an error.
4784 *) Disable Heimdal support, since it hasn't been fully implemented.
4785 Still give the possibility to force the use of Heimdal, but with
4786 warnings and a request that patches get sent to openssl-dev.
4789 *) Add the VC-CE target, introduce the WINCE sysname, and add
4790 INSTALL.WCE and appropriate conditionals to make it build.
4791 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4793 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4794 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4795 edit numbers of the version.
4796 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4798 *) Introduce safe string copy and catenation functions
4799 (BUF_strlcpy() and BUF_strlcat()).
4800 [Ben Laurie (CHATS) and Richard Levitte]
4802 *) Avoid using fixed-size buffers for one-line DNs.
4803 [Ben Laurie (CHATS)]
4805 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4806 resizing buffers containing secrets, and use where appropriate.
4807 [Ben Laurie (CHATS)]
4809 *) Avoid using fixed size buffers for configuration file location.
4810 [Ben Laurie (CHATS)]
4812 *) Avoid filename truncation for various CA files.
4813 [Ben Laurie (CHATS)]
4815 *) Use sizeof in preference to magic numbers.
4816 [Ben Laurie (CHATS)]
4818 *) Avoid filename truncation in cert requests.
4819 [Ben Laurie (CHATS)]
4821 *) Add assertions to check for (supposedly impossible) buffer
4823 [Ben Laurie (CHATS)]
4825 *) Don't cache truncated DNS entries in the local cache (this could
4826 potentially lead to a spoofing attack).
4827 [Ben Laurie (CHATS)]
4829 *) Fix various buffers to be large enough for hex/decimal
4830 representations in a platform independent manner.
4831 [Ben Laurie (CHATS)]
4833 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4834 resizing buffers containing secrets, and use where appropriate.
4835 [Ben Laurie (CHATS)]
4837 *) Add BIO_indent() to avoid much slightly worrying code to do
4839 [Ben Laurie (CHATS)]
4841 *) Convert sprintf()/BIO_puts() to BIO_printf().
4842 [Ben Laurie (CHATS)]
4844 *) buffer_gets() could terminate with the buffer only half
4846 [Ben Laurie (CHATS)]
4848 *) Add assertions to prevent user-supplied crypto functions from
4849 overflowing internal buffers by having large block sizes, etc.
4850 [Ben Laurie (CHATS)]
4852 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4854 [Ben Laurie (CHATS)]
4856 *) Eliminate unused copy of key in RC4.
4857 [Ben Laurie (CHATS)]
4859 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4860 [Ben Laurie (CHATS)]
4862 *) Fix off-by-one error in EGD path.
4863 [Ben Laurie (CHATS)]
4865 *) If RANDFILE path is too long, ignore instead of truncating.
4866 [Ben Laurie (CHATS)]
4868 *) Eliminate unused and incorrectly sized X.509 structure
4870 [Ben Laurie (CHATS)]
4872 *) Eliminate unused and dangerous function knumber().
4873 [Ben Laurie (CHATS)]
4875 *) Eliminate unused and dangerous structure, KSSL_ERR.
4876 [Ben Laurie (CHATS)]
4878 *) Protect against overlong session ID context length in an encoded
4879 session object. Since these are local, this does not appear to be
4881 [Ben Laurie (CHATS)]
4883 *) Change from security patch (see 0.9.6e below) that did not affect
4884 the 0.9.6 release series:
4886 Remote buffer overflow in SSL3 protocol - an attacker could
4887 supply an oversized master key in Kerberos-enabled versions.
4889 [Ben Laurie (CHATS)]
4891 *) Change the SSL kerb5 codes to match RFC 2712.
4894 *) Make -nameopt work fully for req and add -reqopt switch.
4895 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4897 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4898 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4900 *) Make sure tests can be performed even if the corresponding algorithms
4901 have been removed entirely. This was also the last step to make
4902 OpenSSL compilable with DJGPP under all reasonable conditions.
4903 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4905 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4906 to allow version independent disabling of normally unselected ciphers,
4907 which may be activated as a side-effect of selecting a single cipher.
4909 (E.g., cipher list string "RSA" enables ciphersuites that are left
4910 out of "ALL" because they do not provide symmetric encryption.
4911 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4912 [Lutz Jaenicke, Bodo Moeller]
4914 *) Add appropriate support for separate platform-dependent build
4915 directories. The recommended way to make a platform-dependent
4916 build directory is the following (tested on Linux), maybe with
4919 # Place yourself outside of the OpenSSL source tree. In
4920 # this example, the environment variable OPENSSL_SOURCE
4921 # is assumed to contain the absolute OpenSSL source directory.
4922 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4923 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4924 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4925 mkdir -p `dirname $F`
4926 ln -s $OPENSSL_SOURCE/$F $F
4929 To be absolutely sure not to disturb the source tree, a "make clean"
4930 is a good thing. If it isn't successfull, don't worry about it,
4931 it probably means the source directory is very clean.
4934 *) Make sure any ENGINE control commands make local copies of string
4935 pointers passed to them whenever necessary. Otherwise it is possible
4936 the caller may have overwritten (or deallocated) the original string
4937 data when a later ENGINE operation tries to use the stored values.
4938 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4940 *) Improve diagnostics in file reading and command-line digests.
4941 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4943 *) Add AES modes CFB and OFB to the object database. Correct an
4944 error in AES-CFB decryption.
4947 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4948 allows existing EVP_CIPHER_CTX structures to be reused after
4949 calling EVP_*Final(). This behaviour is used by encryption
4950 BIOs and some applications. This has the side effect that
4951 applications must explicitly clean up cipher contexts with
4952 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4955 *) Check the values of dna and dnb in bn_mul_recursive before calling
4956 bn_mul_comba (a non zero value means the a or b arrays do not contain
4957 n2 elements) and fallback to bn_mul_normal if either is not zero.
4960 *) Fix escaping of non-ASCII characters when using the -subj option
4961 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4964 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4965 form for "surname", serialNumber has no short form.
4966 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4967 therefore remove "mail" short name for "internet 7".
4968 The OID for unique identifiers in X509 certificates is
4969 x500UniqueIdentifier, not uniqueIdentifier.
4970 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4973 *) Add an "init" command to the ENGINE config module and auto initialize
4974 ENGINEs. Without any "init" command the ENGINE will be initialized
4975 after all ctrl commands have been executed on it. If init=1 the
4976 ENGINE is initailized at that point (ctrls before that point are run
4977 on the uninitialized ENGINE and after on the initialized one). If
4978 init=0 then the ENGINE will not be iniatialized at all.
4981 *) Fix the 'app_verify_callback' interface so that the user-defined
4982 argument is actually passed to the callback: In the
4983 SSL_CTX_set_cert_verify_callback() prototype, the callback
4984 declaration has been changed from
4987 int (*cb)(X509_STORE_CTX *,void *);
4988 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4989 i=s->ctx->app_verify_callback(&ctx)
4990 has been changed into
4991 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4993 To update applications using SSL_CTX_set_cert_verify_callback(),
4994 a dummy argument can be added to their callback functions.
4995 [D. K. Smetters <smetters@parc.xerox.com>]
4997 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4998 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5000 *) Add and OPENSSL_LOAD_CONF define which will cause
5001 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5002 This allows older applications to transparently support certain
5003 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5004 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5005 load the config file and OPENSSL_add_all_algorithms_conf() which will
5006 always load it have also been added.
5009 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5010 Adjust NIDs and EVP layer.
5011 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5013 *) Config modules support in openssl utility.
5015 Most commands now load modules from the config file,
5016 though in a few (such as version) this isn't done
5017 because it couldn't be used for anything.
5019 In the case of ca and req the config file used is
5020 the same as the utility itself: that is the -config
5021 command line option can be used to specify an
5025 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5026 use "openssl_conf" if filename is NULL use default openssl config file.
5029 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5030 config section name. Add a new flag to tolerate a missing config file
5031 and move code to CONF_modules_load_file().
5034 *) Support for crypto accelerator cards from Accelerated Encryption
5035 Processing, www.aep.ie. (Use engine 'aep')
5036 The support was copied from 0.9.6c [engine] and adapted/corrected
5037 to work with the new engine framework.
5038 [AEP Inc. and Richard Levitte]
5040 *) Support for SureWare crypto accelerator cards from Baltimore
5041 Technologies. (Use engine 'sureware')
5042 The support was copied from 0.9.6c [engine] and adapted
5043 to work with the new engine framework.
5046 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5047 make the newer ENGINE framework commands for the CHIL engine work.
5048 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5050 *) Make it possible to produce shared libraries on ReliantUNIX.
5051 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5053 *) Add the configuration target debug-linux-ppro.
5054 Make 'openssl rsa' use the general key loading routines
5055 implemented in apps.c, and make those routines able to
5056 handle the key format FORMAT_NETSCAPE and the variant
5058 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5060 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5061 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5063 *) Add -keyform to rsautl, and document -engine.
5064 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5066 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5067 BIO_R_NO_SUCH_FILE error code rather than the generic
5068 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5071 *) Add new functions
5073 ERR_peek_last_error_line
5074 ERR_peek_last_error_line_data.
5075 These are similar to
5078 ERR_peek_error_line_data,
5079 but report on the latest error recorded rather than the first one
5080 still in the error queue.
5081 [Ben Laurie, Bodo Moeller]
5083 *) default_algorithms option in ENGINE config module. This allows things
5085 default_algorithms = ALL
5086 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5089 *) Preliminary ENGINE config module.
5092 *) New experimental application configuration code.
5095 *) Change the AES code to follow the same name structure as all other
5096 symmetric ciphers, and behave the same way. Move everything to
5097 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5098 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5100 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5101 [Ben Laurie and Theo de Raadt]
5103 *) Add option to output public keys in req command.
5104 [Massimiliano Pala madwolf@openca.org]
5106 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5107 (up to about 10% better than before for P-192 and P-224).
5110 *) New functions/macros
5112 SSL_CTX_set_msg_callback(ctx, cb)
5113 SSL_CTX_set_msg_callback_arg(ctx, arg)
5114 SSL_set_msg_callback(ssl, cb)
5115 SSL_set_msg_callback_arg(ssl, arg)
5117 to request calling a callback function
5119 void cb(int write_p, int version, int content_type,
5120 const void *buf, size_t len, SSL *ssl, void *arg)
5122 whenever a protocol message has been completely received
5123 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5124 protocol version according to which the SSL library interprets
5125 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5126 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5127 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5128 specification (change_cipher_spec(20), alert(21), handshake(22)).
5129 'buf' and 'len' point to the actual message, 'ssl' to the
5130 SSL object, and 'arg' is the application-defined value set by
5131 SSL[_CTX]_set_msg_callback_arg().
5133 'openssl s_client' and 'openssl s_server' have new '-msg' options
5134 to enable a callback that displays all protocol messages.
5137 *) Change the shared library support so shared libraries are built as
5138 soon as the corresponding static library is finished, and thereby get
5139 openssl and the test programs linked against the shared library.
5140 This still only happens when the keyword "shard" has been given to
5141 the configuration scripts.
5143 NOTE: shared library support is still an experimental thing, and
5144 backward binary compatibility is still not guaranteed.
5145 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5147 *) Add support for Subject Information Access extension.
5148 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5150 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5151 additional bytes when new memory had to be allocated, not just
5152 when reusing an existing buffer.
5155 *) New command line and configuration option 'utf8' for the req command.
5156 This allows field values to be specified as UTF8 strings.
5159 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5160 runs for the former and machine-readable output for the latter.
5163 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5164 of the e-mail address in the DN (i.e., it will go into a certificate
5165 extension only). The new configuration file option 'email_in_dn = no'
5166 has the same effect.
5167 [Massimiliano Pala madwolf@openca.org]
5169 *) Change all functions with names starting with des_ to be starting
5170 with DES_ instead. Add wrappers that are compatible with libdes,
5171 but are named _ossl_old_des_*. Finally, add macros that map the
5172 des_* symbols to the corresponding _ossl_old_des_* if libdes
5173 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5174 desired, the des_* symbols will be mapped to DES_*, with one
5177 Since we provide two compatibility mappings, the user needs to
5178 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5179 compatibility is desired. The default (i.e., when that macro
5180 isn't defined) is OpenSSL 0.9.6c compatibility.
5182 There are also macros that enable and disable the support of old
5183 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5184 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5185 are defined, the default will apply: to support the old des routines.
5187 In either case, one must include openssl/des.h to get the correct
5188 definitions. Do not try to just include openssl/des_old.h, that
5191 NOTE: This is a major break of an old API into a new one. Software
5192 authors are encouraged to switch to the DES_ style functions. Some
5193 time in the future, des_old.h and the libdes compatibility functions
5194 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5195 default), and then completely removed.
5198 *) Test for certificates which contain unsupported critical extensions.
5199 If such a certificate is found during a verify operation it is
5200 rejected by default: this behaviour can be overridden by either
5201 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5202 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5203 X509_supported_extension() has also been added which returns 1 if a
5204 particular extension is supported.
5207 *) Modify the behaviour of EVP cipher functions in similar way to digests
5208 to retain compatibility with existing code.
5211 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5212 compatibility with existing code. In particular the 'ctx' parameter does
5213 not have to be to be initialized before the call to EVP_DigestInit() and
5214 it is tidied up after a call to EVP_DigestFinal(). New function
5215 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5216 EVP_MD_CTX_copy() changed to not require the destination to be
5217 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5218 requires the destination to be valid.
5220 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5221 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5224 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5225 so that complete 'Handshake' protocol structures are kept in memory
5226 instead of overwriting 'msg_type' and 'length' with 'body' data.
5229 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5230 [Massimo Santin via Richard Levitte]
5232 *) Major restructuring to the underlying ENGINE code. This includes
5233 reduction of linker bloat, separation of pure "ENGINE" manipulation
5234 (initialisation, etc) from functionality dealing with implementations
5235 of specific crypto iterfaces. This change also introduces integrated
5236 support for symmetric ciphers and digest implementations - so ENGINEs
5237 can now accelerate these by providing EVP_CIPHER and EVP_MD
5238 implementations of their own. This is detailed in crypto/engine/README
5239 as it couldn't be adequately described here. However, there are a few
5240 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5241 were changed in the original introduction of ENGINE code have now
5242 reverted back - the hooking from this code to ENGINE is now a good
5243 deal more passive and at run-time, operations deal directly with
5244 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5245 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5246 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5247 they were not being used by the framework as there is no concept of a
5248 BIGNUM_METHOD and they could not be generalised to the new
5249 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5250 ENGINE_cpy() has been removed as it cannot be consistently defined in
5254 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5257 *) Change mkdef.pl to sort symbols that get the same entry number,
5258 and make sure the automatically generated functions ERR_load_*
5259 become part of libeay.num as well.
5262 *) New function SSL_renegotiate_pending(). This returns true once
5263 renegotiation has been requested (either SSL_renegotiate() call
5264 or HelloRequest/ClientHello received from the peer) and becomes
5265 false once a handshake has been completed.
5266 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5267 sends a HelloRequest, but does not ensure that a handshake takes
5268 place. SSL_renegotiate_pending() is useful for checking if the
5269 client has followed the request.)
5272 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5273 By default, clients may request session resumption even during
5274 renegotiation (if session ID contexts permit); with this option,
5275 session resumption is possible only in the first handshake.
5277 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5278 more bits available for options that should not be part of
5279 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5282 *) Add some demos for certificate and certificate request creation.
5285 *) Make maximum certificate chain size accepted from the peer application
5286 settable (SSL*_get/set_max_cert_list()), as proposed by
5287 "Douglas E. Engert" <deengert@anl.gov>.
5290 *) Add support for shared libraries for Unixware-7
5291 (Boyd Lynn Gerber <gerberb@zenez.com>).
5294 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5295 be done prior to destruction. Use this to unload error strings from
5296 ENGINEs that load their own error strings. NB: This adds two new API
5297 functions to "get" and "set" this destroy handler in an ENGINE.
5300 *) Alter all existing ENGINE implementations (except "openssl" and
5301 "openbsd") to dynamically instantiate their own error strings. This
5302 makes them more flexible to be built both as statically-linked ENGINEs
5303 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5304 Also, add stub code to each that makes building them as self-contained
5305 shared-libraries easier (see README.ENGINE).
5308 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5309 implementations into applications that are completely implemented in
5310 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5311 commands that can be used to configure what shared-library to load and
5312 to control aspects of the way it is handled. Also, made an update to
5313 the README.ENGINE file that brings its information up-to-date and
5314 provides some information and instructions on the "dynamic" ENGINE
5315 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5318 *) Make it possible to unload ranges of ERR strings with a new
5319 "ERR_unload_strings" function.
5322 *) Add a copy() function to EVP_MD.
5325 *) Make EVP_MD routines take a context pointer instead of just the
5326 md_data void pointer.
5329 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5330 that the digest can only process a single chunk of data
5331 (typically because it is provided by a piece of
5332 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5333 is only going to provide a single chunk of data, and hence the
5334 framework needn't accumulate the data for oneshot drivers.
5337 *) As with "ERR", make it possible to replace the underlying "ex_data"
5338 functions. This change also alters the storage and management of global
5339 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5340 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5341 index counters. The API functions that use this state have been changed
5342 to take a "class_index" rather than pointers to the class's local STACK
5343 and counter, and there is now an API function to dynamically create new
5344 classes. This centralisation allows us to (a) plug a lot of the
5345 thread-safety problems that existed, and (b) makes it possible to clean
5346 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5347 such data would previously have always leaked in application code and
5348 workarounds were in place to make the memory debugging turn a blind eye
5349 to it. Application code that doesn't use this new function will still
5350 leak as before, but their memory debugging output will announce it now
5351 rather than letting it slide.
5353 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5354 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5355 has a return value to indicate success or failure.
5358 *) Make it possible to replace the underlying "ERR" functions such that the
5359 global state (2 LHASH tables and 2 locks) is only used by the "default"
5360 implementation. This change also adds two functions to "get" and "set"
5361 the implementation prior to it being automatically set the first time
5362 any other ERR function takes place. Ie. an application can call "get",
5363 pass the return value to a module it has just loaded, and that module
5364 can call its own "set" function using that value. This means the
5365 module's "ERR" operations will use (and modify) the error state in the
5366 application and not in its own statically linked copy of OpenSSL code.
5369 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5370 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5371 the operation, and provides a more encapsulated way for external code
5372 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5373 to use these functions rather than manually incrementing the counts.
5375 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5378 *) Add EVP test program.
5381 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5384 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5385 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5386 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5387 These allow a CRL to be built without having to access X509_CRL fields
5388 directly. Modify 'ca' application to use new functions.
5391 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5392 bug workarounds. Rollback attack detection is a security feature.
5393 The problem will only arise on OpenSSL servers when TLSv1 is not
5394 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5395 Software authors not wanting to support TLSv1 will have special reasons
5396 for their choice and can explicitly enable this option.
5397 [Bodo Moeller, Lutz Jaenicke]
5399 *) Rationalise EVP so it can be extended: don't include a union of
5400 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5401 (similar to those existing for EVP_CIPHER_CTX).
5406 EVP_MD_CTX_init(&md); /* new function call */
5407 EVP_DigestInit(&md, EVP_sha1());
5408 EVP_DigestUpdate(&md, in, len);
5409 EVP_DigestFinal(&md, out, NULL);
5410 EVP_MD_CTX_cleanup(&md); /* new function call */
5414 *) Make DES key schedule conform to the usual scheme, as well as
5415 correcting its structure. This means that calls to DES functions
5416 now have to pass a pointer to a des_key_schedule instead of a
5417 plain des_key_schedule (which was actually always a pointer
5420 des_key_schedule ks;
5422 des_set_key_checked(..., &ks);
5423 des_ncbc_encrypt(..., &ks, ...);
5425 (Note that a later change renames 'des_...' into 'DES_...'.)
5428 *) Initial reduction of linker bloat: the use of some functions, such as
5429 PEM causes large amounts of unused functions to be linked in due to
5430 poor organisation. For example pem_all.c contains every PEM function
5431 which has a knock on effect of linking in large amounts of (unused)
5432 ASN1 code. Grouping together similar functions and splitting unrelated
5433 functions prevents this.
5436 *) Cleanup of EVP macros.
5439 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5440 correct _ecb suffix.
5443 *) Add initial OCSP responder support to ocsp application. The
5444 revocation information is handled using the text based index
5445 use by the ca application. The responder can either handle
5446 requests generated internally, supplied in files (for example
5447 via a CGI script) or using an internal minimal server.
5450 *) Add configuration choices to get zlib compression for TLS.
5453 *) Changes to Kerberos SSL for RFC 2712 compliance:
5454 1. Implemented real KerberosWrapper, instead of just using
5455 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5456 2. Implemented optional authenticator field of KerberosWrapper.
5458 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5459 and authenticator structs; see crypto/krb5/.
5461 Generalized Kerberos calls to support multiple Kerberos libraries.
5462 [Vern Staats <staatsvr@asc.hpc.mil>,
5463 Jeffrey Altman <jaltman@columbia.edu>
5464 via Richard Levitte]
5466 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5467 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5468 values for each of the key sizes rather than having just
5469 parameters (and 'speed' generating keys each time).
5472 *) Speed up EVP routines.
5475 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5476 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5477 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5478 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5480 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5481 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5482 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5485 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5487 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5490 *) Added the OS2-EMX target.
5491 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5493 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5494 to support NCONF routines in extension code. New function CONF_set_nconf()
5495 to allow functions which take an NCONF to also handle the old LHASH
5496 structure: this means that the old CONF compatible routines can be
5497 retained (in particular wrt extensions) without having to duplicate the
5498 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5501 *) Enhance the general user interface with mechanisms for inner control
5502 and with possibilities to have yes/no kind of prompts.
5505 *) Change all calls to low level digest routines in the library and
5506 applications to use EVP. Add missing calls to HMAC_cleanup() and
5507 don't assume HMAC_CTX can be copied using memcpy().
5508 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5510 *) Add the possibility to control engines through control names but with
5511 arbitrary arguments instead of just a string.
5512 Change the key loaders to take a UI_METHOD instead of a callback
5513 function pointer. NOTE: this breaks binary compatibility with earlier
5514 versions of OpenSSL [engine].
5515 Adapt the nCipher code for these new conditions and add a card insertion
5519 *) Enhance the general user interface with mechanisms to better support
5520 dialog box interfaces, application-defined prompts, the possibility
5521 to use defaults (for example default passwords from somewhere else)
5522 and interrupts/cancellations.
5525 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5526 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5529 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5530 tidy up some unnecessarily weird code in 'sk_new()').
5531 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5533 *) Change the key loading routines for ENGINEs to use the same kind
5534 callback (pem_password_cb) as all other routines that need this
5538 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5539 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5540 than this minimum value is recommended.
5543 *) New random seeder for OpenVMS, using the system process statistics
5544 that are easily reachable.
5547 *) Windows apparently can't transparently handle global
5548 variables defined in DLLs. Initialisations such as:
5550 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5552 wont compile. This is used by the any applications that need to
5553 declare their own ASN1 modules. This was fixed by adding the option
5554 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5555 needed for static libraries under Win32.
5558 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5559 setting of purpose and trust fields. New X509_STORE trust and
5560 purpose functions and tidy up setting in other SSL functions.
5563 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5564 structure. These are inherited by X509_STORE_CTX when it is
5565 initialised. This allows various defaults to be set in the
5566 X509_STORE structure (such as flags for CRL checking and custom
5567 purpose or trust settings) for functions which only use X509_STORE_CTX
5568 internally such as S/MIME.
5570 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5571 trust settings if they are not set in X509_STORE. This allows X509_STORE
5572 purposes and trust (in S/MIME for example) to override any set by default.
5574 Add command line options for CRL checking to smime, s_client and s_server
5578 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5579 are set then the CRL is looked up in the X509_STORE structure and
5580 its validity and signature checked, then if the certificate is found
5581 in the CRL the verify fails with a revoked error.
5583 Various new CRL related callbacks added to X509_STORE_CTX structure.
5585 Command line options added to 'verify' application to support this.
5587 This needs some additional work, such as being able to handle multiple
5588 CRLs with different times, extension based lookup (rather than just
5589 by subject name) and ultimately more complete V2 CRL extension
5593 *) Add a general user interface API (crypto/ui/). This is designed
5594 to replace things like des_read_password and friends (backward
5595 compatibility functions using this new API are provided).
5596 The purpose is to remove prompting functions from the DES code
5597 section as well as provide for prompting through dialog boxes in
5598 a window system and the like.
5601 *) Add "ex_data" support to ENGINE so implementations can add state at a
5602 per-structure level rather than having to store it globally.
5605 *) Make it possible for ENGINE structures to be copied when retrieved by
5606 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5607 This causes the "original" ENGINE structure to act like a template,
5608 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5609 operational state can be localised to each ENGINE structure, despite the
5610 fact they all share the same "methods". New ENGINE structures returned in
5611 this case have no functional references and the return value is the single
5612 structural reference. This matches the single structural reference returned
5613 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5617 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5618 needs to match any other type at all we need to manually clear the
5622 *) Changes to the "openssl engine" utility to include;
5623 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5624 about an ENGINE's available control commands.
5625 - executing control commands from command line arguments using the
5626 '-pre' and '-post' switches. '-post' is only used if '-t' is
5627 specified and the ENGINE is successfully initialised. The syntax for
5628 the individual commands are colon-separated, for example;
5629 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5632 *) New dynamic control command support for ENGINEs. ENGINEs can now
5633 declare their own commands (numbers), names (strings), descriptions,
5634 and input types for run-time discovery by calling applications. A
5635 subset of these commands are implicitly classed as "executable"
5636 depending on their input type, and only these can be invoked through
5637 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5638 can be based on user input, config files, etc). The distinction is
5639 that "executable" commands cannot return anything other than a boolean
5640 result and can only support numeric or string input, whereas some
5641 discoverable commands may only be for direct use through
5642 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5643 pointers, or other custom uses. The "executable" commands are to
5644 support parameterisations of ENGINE behaviour that can be
5645 unambiguously defined by ENGINEs and used consistently across any
5646 OpenSSL-based application. Commands have been added to all the
5647 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5648 control over shared-library paths without source code alterations.
5651 *) Changed all ENGINE implementations to dynamically allocate their
5652 ENGINEs rather than declaring them statically. Apart from this being
5653 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5654 this also allows the implementations to compile without using the
5655 internal engine_int.h header.
5658 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5659 'const' value. Any code that should be able to modify a RAND_METHOD
5660 should already have non-const pointers to it (ie. they should only
5661 modify their own ones).
5664 *) Made a variety of little tweaks to the ENGINE code.
5665 - "atalla" and "ubsec" string definitions were moved from header files
5666 to C code. "nuron" string definitions were placed in variables
5667 rather than hard-coded - allowing parameterisation of these values
5668 later on via ctrl() commands.
5669 - Removed unused "#if 0"'d code.
5670 - Fixed engine list iteration code so it uses ENGINE_free() to release
5671 structural references.
5672 - Constified the RAND_METHOD element of ENGINE structures.
5673 - Constified various get/set functions as appropriate and added
5674 missing functions (including a catch-all ENGINE_cpy that duplicates
5675 all ENGINE values onto a new ENGINE except reference counts/state).
5676 - Removed NULL parameter checks in get/set functions. Setting a method
5677 or function to NULL is a way of cancelling out a previously set
5678 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5679 and doesn't justify the extra error symbols and code.
5680 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5681 flags from engine_int.h to engine.h.
5682 - Changed prototypes for ENGINE handler functions (init(), finish(),
5683 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5686 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5687 to the algorithm using long division. The binary algorithm can be
5688 used only if the modulus is odd. On 32-bit systems, it is faster
5689 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5690 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5691 up to 450 bits. In 64-bit environments, the binary algorithm
5692 appears to be advantageous for much longer moduli; here we use it
5693 for moduli up to 2048 bits.
5696 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5697 could not support the combine flag in choice fields.
5700 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5701 extensions from a certificate request to the certificate.
5704 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5705 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5706 file: this allows the display of the certificate about to be
5707 signed to be customised, to allow certain fields to be included
5708 or excluded and extension details. The old system didn't display
5709 multicharacter strings properly, omitted fields not in the policy
5710 and couldn't display additional details such as extensions.
5713 *) Function EC_POINTs_mul for multiple scalar multiplication
5714 of an arbitrary number of elliptic curve points
5715 \sum scalars[i]*points[i],
5716 optionally including the generator defined for the EC_GROUP:
5717 scalar*generator + \sum scalars[i]*points[i].
5719 EC_POINT_mul is a simple wrapper function for the typical case
5720 that the point list has just one item (besides the optional
5724 *) First EC_METHODs for curves over GF(p):
5726 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5727 operations and provides various method functions that can also
5728 operate with faster implementations of modular arithmetic.
5730 EC_GFp_mont_method() reuses most functions that are part of
5731 EC_GFp_simple_method, but uses Montgomery arithmetic.
5733 [Bodo Moeller; point addition and point doubling
5734 implementation directly derived from source code provided by
5735 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5737 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5738 crypto/ec/ec_lib.c):
5740 Curves are EC_GROUP objects (with an optional group generator)
5741 based on EC_METHODs that are built into the library.
5743 Points are EC_POINT objects based on EC_GROUP objects.
5745 Most of the framework would be able to handle curves over arbitrary
5746 finite fields, but as there are no obvious types for fields other
5747 than GF(p), some functions are limited to that for now.
5750 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5751 that the file contains a complete HTTP response.
5754 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5755 change the def and num file printf format specifier from "%-40sXXX"
5756 to "%-39s XXX". The latter will always guarantee a space after the
5757 field while the former will cause them to run together if the field
5758 is 40 of more characters long.
5761 *) Constify the cipher and digest 'method' functions and structures
5762 and modify related functions to take constant EVP_MD and EVP_CIPHER
5766 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5767 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5770 *) Modify EVP_Digest*() routines so they now return values. Although the
5771 internal software routines can never fail additional hardware versions
5775 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5777 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5778 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5781 ERR_R_NESTED_ASN1_ERROR
5783 ERR_R_MISSING_ASN1_EOS
5784 were 4 .. 9, conflicting with
5785 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5787 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5788 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5790 Add new error code 'ERR_R_INTERNAL_ERROR'.
5793 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5797 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5798 sets the subject name for a new request or supersedes the
5799 subject name in a given request. Formats that can be parsed are
5800 'CN=Some Name, OU=myOU, C=IT'
5802 'CN=Some Name/OU=myOU/C=IT'.
5804 Add options '-batch' and '-verbose' to 'openssl req'.
5805 [Massimiliano Pala <madwolf@hackmasters.net>]
5807 *) Introduce the possibility to access global variables through
5808 functions on platform were that's the best way to handle exporting
5809 global variables in shared libraries. To enable this functionality,
5810 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5811 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5812 is normally done by Configure or something similar).
5814 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5815 in the source file (foo.c) like this:
5817 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5818 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5820 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5821 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5823 OPENSSL_DECLARE_GLOBAL(int,foo);
5824 #define foo OPENSSL_GLOBAL_REF(foo)
5825 OPENSSL_DECLARE_GLOBAL(double,bar);
5826 #define bar OPENSSL_GLOBAL_REF(bar)
5828 The #defines are very important, and therefore so is including the
5829 header file everywhere where the defined globals are used.
5831 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5832 of ASN.1 items, but that structure is a bit different.
5834 The largest change is in util/mkdef.pl which has been enhanced with
5835 better and easier to understand logic to choose which symbols should
5836 go into the Windows .def files as well as a number of fixes and code
5837 cleanup (among others, algorithm keywords are now sorted
5838 lexicographically to avoid constant rewrites).
5841 *) In BN_div() keep a copy of the sign of 'num' before writing the
5842 result to 'rm' because if rm==num the value will be overwritten
5843 and produce the wrong result if 'num' is negative: this caused
5844 problems with BN_mod() and BN_nnmod().
5847 *) Function OCSP_request_verify(). This checks the signature on an
5848 OCSP request and verifies the signer certificate. The signer
5849 certificate is just checked for a generic purpose and OCSP request
5853 *) Add OCSP_check_validity() function to check the validity of OCSP
5854 responses. OCSP responses are prepared in real time and may only
5855 be a few seconds old. Simply checking that the current time lies
5856 between thisUpdate and nextUpdate max reject otherwise valid responses
5857 caused by either OCSP responder or client clock inaccuracy. Instead
5858 we allow thisUpdate and nextUpdate to fall within a certain period of
5859 the current time. The age of the response can also optionally be
5860 checked. Two new options -validity_period and -status_age added to
5864 *) If signature or public key algorithm is unrecognized print out its
5865 OID rather that just UNKNOWN.
5868 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5869 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5870 ID to be generated from the issuer certificate alone which can then be
5871 passed to OCSP_id_issuer_cmp().
5874 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5875 ASN1 modules to export functions returning ASN1_ITEM pointers
5876 instead of the ASN1_ITEM structures themselves. This adds several
5877 new macros which allow the underlying ASN1 function/structure to
5878 be accessed transparently. As a result code should not use ASN1_ITEM
5879 references directly (such as &X509_it) but instead use the relevant
5880 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5881 use of the new ASN1 code on platforms where exporting structures
5882 is problematical (for example in shared libraries) but exporting
5883 functions returning pointers to structures is not.
5886 *) Add support for overriding the generation of SSL/TLS session IDs.
5887 These callbacks can be registered either in an SSL_CTX or per SSL.
5888 The purpose of this is to allow applications to control, if they wish,
5889 the arbitrary values chosen for use as session IDs, particularly as it
5890 can be useful for session caching in multiple-server environments. A
5891 command-line switch for testing this (and any client code that wishes
5892 to use such a feature) has been added to "s_server".
5893 [Geoff Thorpe, Lutz Jaenicke]
5895 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5896 of the form '#if defined(...) || defined(...) || ...' and
5897 '#if !defined(...) && !defined(...) && ...'. This also avoids
5898 the growing number of special cases it was previously handling.
5901 *) Make all configuration macros available for application by making
5902 sure they are available in opensslconf.h, by giving them names starting
5903 with "OPENSSL_" to avoid conflicts with other packages and by making
5904 sure e_os2.h will cover all platform-specific cases together with
5906 Additionally, it is now possible to define configuration/platform-
5907 specific names (called "system identities"). In the C code, these
5908 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5909 macro with the name beginning with "OPENSSL_SYS_", which is determined
5910 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5914 *) New option -set_serial to 'req' and 'x509' this allows the serial
5915 number to use to be specified on the command line. Previously self
5916 signed certificates were hard coded with serial number 0 and the
5917 CA options of 'x509' had to use a serial number in a file which was
5921 *) New options to 'ca' utility to support V2 CRL entry extensions.
5922 Currently CRL reason, invalidity date and hold instruction are
5923 supported. Add new CRL extensions to V3 code and some new objects.
5926 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5927 disable standard block padding (aka PKCS#5 padding) in the EVP
5928 API, which was previously mandatory. This means that the data is
5929 not padded in any way and so the total length much be a multiple
5930 of the block size, otherwise an error occurs.
5933 *) Initial (incomplete) OCSP SSL support.
5936 *) New function OCSP_parse_url(). This splits up a URL into its host,
5937 port and path components: primarily to parse OCSP URLs. New -url
5938 option to ocsp utility.
5941 *) New nonce behavior. The return value of OCSP_check_nonce() now
5942 reflects the various checks performed. Applications can decide
5943 whether to tolerate certain situations such as an absent nonce
5944 in a response when one was present in a request: the ocsp application
5945 just prints out a warning. New function OCSP_add1_basic_nonce()
5946 this is to allow responders to include a nonce in a response even if
5947 the request is nonce-less.
5950 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5951 skipped when using openssl x509 multiple times on a single input file,
5952 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5955 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5956 set string type: to handle setting ASN1_TIME structures. Fix ca
5957 utility to correctly initialize revocation date of CRLs.
5960 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5961 the clients preferred ciphersuites and rather use its own preferences.
5962 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5963 Internet Explorer by ensuring unchanged hash method during stepup.
5964 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5967 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5968 to aes and add a new 'exist' option to print out symbols that don't
5972 *) Additional options to ocsp utility to allow flags to be set and
5973 additional certificates supplied.
5976 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5977 OCSP client a number of certificate to only verify the response
5981 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5982 handle the new API. Currently only ECB, CBC modes supported. Add new
5985 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5986 Encryption Standard (AES) Ciphersuites for Transport Layer
5987 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5988 not enabled by default and were not part of the "ALL" ciphersuite
5989 alias because they were not yet official; they could be
5990 explicitly requested by specifying the "AESdraft" ciphersuite
5991 group alias. In the final release of OpenSSL 0.9.7, the group
5992 alias is called "AES" and is part of "ALL".)
5993 [Ben Laurie, Steve Henson, Bodo Moeller]
5995 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5996 request to response.
5999 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6000 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6001 extract information from a certificate request. OCSP_response_create()
6002 creates a response and optionally adds a basic response structure.
6003 OCSP_basic_add1_status() adds a complete single response to a basic
6004 response and returns the OCSP_SINGLERESP structure just added (to allow
6005 extensions to be included for example). OCSP_basic_add1_cert() adds a
6006 certificate to a basic response and OCSP_basic_sign() signs a basic
6007 response with various flags. New helper functions ASN1_TIME_check()
6008 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6009 (converts ASN1_TIME to GeneralizedTime).
6012 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6013 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6014 structure from a certificate. X509_pubkey_digest() digests the public_key
6015 contents: this is used in various key identifiers.
6018 *) Make sk_sort() tolerate a NULL argument.
6019 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6021 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6022 passed by the function are trusted implicitly. If any of them signed the
6023 response then it is assumed to be valid and is not verified.
6026 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6027 to data. This was previously part of the PKCS7 ASN1 code. This
6028 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6029 [Steve Henson, reported by Kenneth R. Robinette
6030 <support@securenetterm.com>]
6032 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6033 routines: without these tracing memory leaks is very painful.
6034 Fix leaks in PKCS12 and PKCS7 routines.
6037 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6038 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6039 effectively meant GeneralizedTime would never be used. Now it
6040 is initialised to -1 but X509_time_adj() now has to check the value
6041 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6042 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6043 [Steve Henson, reported by Kenneth R. Robinette
6044 <support@securenetterm.com>]
6046 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6047 result in a zero length in the ASN1_INTEGER structure which was
6048 not consistent with the structure when d2i_ASN1_INTEGER() was used
6049 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6050 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6051 where it did not print out a minus for negative ASN1_INTEGER.
6054 *) Add summary printout to ocsp utility. The various functions which
6055 convert status values to strings have been renamed to:
6056 OCSP_response_status_str(), OCSP_cert_status_str() and
6057 OCSP_crl_reason_str() and are no longer static. New options
6058 to verify nonce values and to disable verification. OCSP response
6059 printout format cleaned up.
6062 *) Add additional OCSP certificate checks. These are those specified
6063 in RFC2560. This consists of two separate checks: the CA of the
6064 certificate being checked must either be the OCSP signer certificate
6065 or the issuer of the OCSP signer certificate. In the latter case the
6066 OCSP signer certificate must contain the OCSP signing extended key
6067 usage. This check is performed by attempting to match the OCSP
6068 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6069 in the OCSP_CERTID structures of the response.
6072 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6073 and related routines. This uses the standard OpenSSL certificate
6074 verify routines to perform initial checks (just CA validity) and
6075 to obtain the certificate chain. Then additional checks will be
6076 performed on the chain. Currently the root CA is checked to see
6077 if it is explicitly trusted for OCSP signing. This is used to set
6078 a root CA as a global signing root: that is any certificate that
6079 chains to that CA is an acceptable OCSP signing certificate.
6082 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6083 extensions from a separate configuration file.
6084 As when reading extensions from the main configuration file,
6085 the '-extensions ...' option may be used for specifying the
6087 [Massimiliano Pala <madwolf@comune.modena.it>]
6089 *) New OCSP utility. Allows OCSP requests to be generated or
6090 read. The request can be sent to a responder and the output
6091 parsed, outputed or printed in text form. Not complete yet:
6092 still needs to check the OCSP response validity.
6095 *) New subcommands for 'openssl ca':
6096 'openssl ca -status <serial>' prints the status of the cert with
6097 the given serial number (according to the index file).
6098 'openssl ca -updatedb' updates the expiry status of certificates
6100 [Massimiliano Pala <madwolf@comune.modena.it>]
6102 *) New '-newreq-nodes' command option to CA.pl. This is like
6103 '-newreq', but calls 'openssl req' with the '-nodes' option
6104 so that the resulting key is not encrypted.
6105 [Damien Miller <djm@mindrot.org>]
6107 *) New configuration for the GNU Hurd.
6108 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6110 *) Initial code to implement OCSP basic response verify. This
6111 is currently incomplete. Currently just finds the signer's
6112 certificate and verifies the signature on the response.
6115 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6116 value of OPENSSLDIR. This is available via the new '-d' option
6117 to 'openssl version', and is also included in 'openssl version -a'.
6120 *) Allowing defining memory allocation callbacks that will be given
6121 file name and line number information in additional arguments
6122 (a const char* and an int). The basic functionality remains, as
6123 well as the original possibility to just replace malloc(),
6124 realloc() and free() by functions that do not know about these
6125 additional arguments. To register and find out the current
6126 settings for extended allocation functions, the following
6127 functions are provided:
6129 CRYPTO_set_mem_ex_functions
6130 CRYPTO_set_locked_mem_ex_functions
6131 CRYPTO_get_mem_ex_functions
6132 CRYPTO_get_locked_mem_ex_functions
6134 These work the same way as CRYPTO_set_mem_functions and friends.
6135 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6136 extended allocation function is enabled.
6137 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6138 a conventional allocation function is enabled.
6139 [Richard Levitte, Bodo Moeller]
6141 *) Finish off removing the remaining LHASH function pointer casts.
6142 There should no longer be any prototype-casting required when using
6143 the LHASH abstraction, and any casts that remain are "bugs". See
6144 the callback types and macros at the head of lhash.h for details
6145 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6148 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6149 If /dev/[u]random devices are not available or do not return enough
6150 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6152 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6153 /etc/entropy will be queried once each in this sequence, quering stops
6154 when enough entropy was collected without querying more sockets.
6157 *) Change the Unix RAND_poll() variant to be able to poll several
6158 random devices, as specified by DEVRANDOM, until a sufficient amount
6159 of data has been collected. We spend at most 10 ms on each file
6160 (select timeout) and read in non-blocking mode. DEVRANDOM now
6161 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6162 (previously it was just the string "/dev/urandom"), so on typical
6163 platforms the 10 ms delay will never occur.
6164 Also separate out the Unix variant to its own file, rand_unix.c.
6165 For VMS, there's a currently-empty rand_vms.c.
6168 *) Move OCSP client related routines to ocsp_cl.c. These
6169 provide utility functions which an application needing
6170 to issue a request to an OCSP responder and analyse the
6171 response will typically need: as opposed to those which an
6172 OCSP responder itself would need which will be added later.
6174 OCSP_request_sign() signs an OCSP request with an API similar
6175 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6176 response. OCSP_response_get1_basic() extracts basic response
6177 from response. OCSP_resp_find_status(): finds and extracts status
6178 information from an OCSP_CERTID structure (which will be created
6179 when the request structure is built). These are built from lower
6180 level functions which work on OCSP_SINGLERESP structures but
6181 wont normally be used unless the application wishes to examine
6182 extensions in the OCSP response for example.
6184 Replace nonce routines with a pair of functions.
6185 OCSP_request_add1_nonce() adds a nonce value and optionally
6186 generates a random value. OCSP_check_nonce() checks the
6187 validity of the nonce in an OCSP response.
6190 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6191 This doesn't copy the supplied OCSP_CERTID and avoids the
6192 need to free up the newly created id. Change return type
6193 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6194 This can then be used to add extensions to the request.
6195 Deleted OCSP_request_new(), since most of its functionality
6196 is now in OCSP_REQUEST_new() (and the case insensitive name
6197 clash) apart from the ability to set the request name which
6198 will be added elsewhere.
6201 *) Update OCSP API. Remove obsolete extensions argument from
6202 various functions. Extensions are now handled using the new
6203 OCSP extension code. New simple OCSP HTTP function which
6204 can be used to send requests and parse the response.
6207 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6208 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6209 uses the special reorder version of SET OF to sort the attributes
6210 and reorder them to match the encoded order. This resolves a long
6211 standing problem: a verify on a PKCS7 structure just after signing
6212 it used to fail because the attribute order did not match the
6213 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6214 it uses the received order. This is necessary to tolerate some broken
6215 software that does not order SET OF. This is handled by encoding
6216 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6217 to produce the required SET OF.
6220 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6221 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6222 files to get correct declarations of the ASN.1 item variables.
6225 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6226 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6227 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6228 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6229 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6230 ASN1_ITEM and no wrapper functions.
6233 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6234 replace the old function pointer based I/O routines. Change most of
6235 the *_d2i_bio() and *_d2i_fp() functions to use these.
6238 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6239 lines, recognice more "algorithms" that can be deselected, and make
6240 it complain about algorithm deselection that isn't recognised.
6243 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6244 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6245 to use new functions. Add NO_ASN1_OLD which can be set to remove
6246 some old style ASN1 functions: this can be used to determine if old
6247 code will still work when these eventually go away.
6250 *) New extension functions for OCSP structures, these follow the
6251 same conventions as certificates and CRLs.
6254 *) New function X509V3_add1_i2d(). This automatically encodes and
6255 adds an extension. Its behaviour can be customised with various
6256 flags to append, replace or delete. Various wrappers added for
6257 certifcates and CRLs.
6260 *) Fix to avoid calling the underlying ASN1 print routine when
6261 an extension cannot be parsed. Correct a typo in the
6262 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6265 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6266 entries for variables.
6269 *) Add functionality to apps/openssl.c for detecting locking
6270 problems: As the program is single-threaded, all we have
6271 to do is register a locking callback using an array for
6272 storing which locks are currently held by the program.
6275 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6276 SSL_get_ex_data_X509_STORE_idx(), which is used in
6277 ssl_verify_cert_chain() and thus can be called at any time
6278 during TLS/SSL handshakes so that thread-safety is essential.
6279 Unfortunately, the ex_data design is not at all suited
6280 for multi-threaded use, so it probably should be abolished.
6283 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6284 [Broadcom, tweaked and integrated by Geoff Thorpe]
6286 *) Move common extension printing code to new function
6287 X509V3_print_extensions(). Reorganise OCSP print routines and
6288 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6291 *) New function X509_signature_print() to remove duplication in some
6295 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6296 set (this was treated exactly the same as SET OF previously). This
6297 is used to reorder the STACK representing the structure to match the
6298 encoding. This will be used to get round a problem where a PKCS7
6299 structure which was signed could not be verified because the STACK
6300 order did not reflect the encoded order.
6303 *) Reimplement the OCSP ASN1 module using the new code.
6306 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6307 for its ASN1 operations. The old style function pointers still exist
6308 for now but they will eventually go away.
6311 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6312 completely replaces the old ASN1 functionality with a table driven
6313 encoder and decoder which interprets an ASN1_ITEM structure describing
6314 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6315 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6316 has also been converted to the new form.
6319 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6320 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6321 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6322 for negative moduli.
6325 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6326 of not touching the result's sign bit.
6329 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6333 *) Changed the LHASH code to use prototypes for callbacks, and created
6334 macros to declare and implement thin (optionally static) functions
6335 that provide type-safety and avoid function pointer casting for the
6336 type-specific callbacks.
6339 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6341 [Veers Staats <staatsvr@asc.hpc.mil>,
6342 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6344 *) Reformat the FAQ so the different questions and answers can be divided
6345 in sections depending on the subject.
6348 *) Have the zlib compression code load ZLIB.DLL dynamically under
6352 *) New function BN_mod_sqrt for computing square roots modulo a prime
6353 (using the probabilistic Tonelli-Shanks algorithm unless
6354 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6355 be handled deterministically).
6356 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6358 *) Make BN_mod_inverse faster by explicitly handling small quotients
6359 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6360 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6363 *) New function BN_kronecker.
6366 *) Fix BN_gcd so that it works on negative inputs; the result is
6367 positive unless both parameters are zero.
6368 Previously something reasonably close to an infinite loop was
6369 possible because numbers could be growing instead of shrinking
6370 in the implementation of Euclid's algorithm.
6373 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6374 sign of the number in question.
6376 Fix BN_is_word(a,w) to work correctly for w == 0.
6378 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6379 because its test if the absolute value of 'a' equals 'w'.
6380 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6381 it exists mostly for use in the implementations of BN_is_zero(),
6382 BN_is_one(), and BN_is_word().
6385 *) New function BN_swap.
6388 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6389 the exponentiation functions are more likely to produce reasonable
6390 results on negative inputs.
6393 *) Change BN_mod_mul so that the result is always non-negative.
6394 Previously, it could be negative if one of the factors was negative;
6395 I don't think anyone really wanted that behaviour.
6398 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6399 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6400 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6401 and add new functions:
6410 BN_mod_lshift1_quick
6414 These functions always generate non-negative results.
6416 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6417 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6419 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6420 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6421 be reduced modulo m.
6422 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6425 The following entry accidentally appeared in the CHANGES file
6426 distributed with OpenSSL 0.9.7. The modifications described in
6427 it do *not* apply to OpenSSL 0.9.7.
6429 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6430 was actually never needed) and in BN_mul(). The removal in BN_mul()
6431 required a small change in bn_mul_part_recursive() and the addition
6432 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6433 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6434 bn_sub_words() and bn_add_words() except they take arrays with
6439 *) In 'openssl passwd', verify passwords read from the terminal
6440 unless the '-salt' option is used (which usually means that
6441 verification would just waste user's time since the resulting
6442 hash is going to be compared with some given password hash)
6443 or the new '-noverify' option is used.
6445 This is an incompatible change, but it does not affect
6446 non-interactive use of 'openssl passwd' (passwords on the command
6447 line, '-stdin' option, '-in ...' option) and thus should not
6451 *) Remove all references to RSAref, since there's no more need for it.
6454 *) Make DSO load along a path given through an environment variable
6455 (SHLIB_PATH) with shl_load().
6458 *) Constify the ENGINE code as a result of BIGNUM constification.
6459 Also constify the RSA code and most things related to it. In a
6460 few places, most notable in the depth of the ASN.1 code, ugly
6461 casts back to non-const were required (to be solved at a later
6465 *) Make it so the openssl application has all engines loaded by default.
6468 *) Constify the BIGNUM routines a little more.
6471 *) Add the following functions:
6473 ENGINE_load_cswift()
6475 ENGINE_load_atalla()
6477 ENGINE_load_builtin_engines()
6479 That way, an application can itself choose if external engines that
6480 are built-in in OpenSSL shall ever be used or not. The benefit is
6481 that applications won't have to be linked with libdl or other dso
6482 libraries unless it's really needed.
6484 Changed 'openssl engine' to load all engines on demand.
6485 Changed the engine header files to avoid the duplication of some
6486 declarations (they differed!).
6489 *) 'openssl engine' can now list capabilities.
6492 *) Better error reporting in 'openssl engine'.
6495 *) Never call load_dh_param(NULL) in s_server.
6498 *) Add engine application. It can currently list engines by name and
6499 identity, and test if they are actually available.
6502 *) Improve RPM specification file by forcing symbolic linking and making
6503 sure the installed documentation is also owned by root.root.
6504 [Damien Miller <djm@mindrot.org>]
6506 *) Give the OpenSSL applications more possibilities to make use of
6507 keys (public as well as private) handled by engines.
6510 *) Add OCSP code that comes from CertCo.
6513 *) Add VMS support for the Rijndael code.
6516 *) Added untested support for Nuron crypto accelerator.
6519 *) Add support for external cryptographic devices. This code was
6520 previously distributed separately as the "engine" branch.
6521 [Geoff Thorpe, Richard Levitte]
6523 *) Rework the filename-translation in the DSO code. It is now possible to
6524 have far greater control over how a "name" is turned into a filename
6525 depending on the operating environment and any oddities about the
6526 different shared library filenames on each system.
6529 *) Support threads on FreeBSD-elf in Configure.
6532 *) Fix for SHA1 assembly problem with MASM: it produces
6533 warnings about corrupt line number information when assembling
6534 with debugging information. This is caused by the overlapping
6536 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6539 NCONF_get_number() has no error checking at all. As a replacement,
6540 NCONF_get_number_e() is defined (_e for "error checking") and is
6541 promoted strongly. The old NCONF_get_number is kept around for
6542 binary backward compatibility.
6543 Make it possible for methods to load from something other than a BIO,
6544 by providing a function pointer that is given a name instead of a BIO.
6545 For example, this could be used to load configuration data from an
6549 *) Fix for non blocking accept BIOs. Added new I/O special reason
6550 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6551 with non blocking I/O was not possible because no retry code was
6552 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6556 *) Added the beginnings of Rijndael support.
6559 *) Fix for bug in DirectoryString mask setting. Add support for
6560 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6561 to allow certificate printing to more controllable, additional
6562 'certopt' option to 'x509' to allow new printing options to be
6566 *) Clean old EAY MD5 hack from e_os.h.
6569 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6571 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6572 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6573 [Joe Orton, Steve Henson]
6575 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6577 *) Fix additional bug revealed by the NISCC test suite:
6579 Stop bug triggering large recursion when presented with
6580 certain ASN.1 tags (CVE-2003-0851)
6583 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6585 *) Fix various bugs revealed by running the NISCC test suite:
6587 Stop out of bounds reads in the ASN1 code when presented with
6588 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6590 If verify callback ignores invalid public key errors don't try to check
6591 certificate signature with the NULL public key.
6595 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6596 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6600 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6601 extra data after the compression methods not only for TLS 1.0
6602 but also for SSL 3.0 (as required by the specification).
6603 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6605 *) Change X509_certificate_type() to mark the key as exported/exportable
6606 when it's 512 *bits* long, not 512 bytes.
6609 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6611 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6612 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6613 a protocol version number mismatch like a decryption error
6614 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6617 *) Turn on RSA blinding by default in the default implementation
6618 to avoid a timing attack. Applications that don't want it can call
6619 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6620 They would be ill-advised to do so in most cases.
6621 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6623 *) Change RSA blinding code so that it works when the PRNG is not
6624 seeded (in this case, the secret RSA exponent is abused as
6625 an unpredictable seed -- if it is not unpredictable, there
6626 is no point in blinding anyway). Make RSA blinding thread-safe
6627 by remembering the creator's thread ID in rsa->blinding and
6628 having all other threads use local one-time blinding factors
6629 (this requires more computation than sharing rsa->blinding, but
6630 avoids excessive locking; and if an RSA object is not shared
6631 between threads, blinding will still be very fast).
6634 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6636 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6637 via timing by performing a MAC computation even if incorrrect
6638 block cipher padding has been found. This is a countermeasure
6639 against active attacks where the attacker has to distinguish
6640 between bad padding and a MAC verification error. (CVE-2003-0078)
6642 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6643 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6644 Martin Vuagnoux (EPFL, Ilion)]
6646 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6648 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6649 memory from it's contents. This is done with a counter that will
6650 place alternating values in each byte. This can be used to solve
6651 two issues: 1) the removal of calls to memset() by highly optimizing
6652 compilers, and 2) cleansing with other values than 0, since those can
6653 be read through on certain media, for example a swap space on disk.
6656 *) Bugfix: client side session caching did not work with external caching,
6657 because the session->cipher setting was not restored when reloading
6658 from the external cache. This problem was masked, when
6659 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6660 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6663 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6664 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6665 [Zeev Lieber <zeev-l@yahoo.com>]
6667 *) Undo an undocumented change introduced in 0.9.6e which caused
6668 repeated calls to OpenSSL_add_all_ciphers() and
6669 OpenSSL_add_all_digests() to be ignored, even after calling
6673 *) Change the default configuration reader to deal with last line not
6674 being properly terminated.
6677 *) Change X509_NAME_cmp() so it applies the special rules on handling
6678 DN values that are of type PrintableString, as well as RDNs of type
6679 emailAddress where the value has the type ia5String.
6680 [stefank@valicert.com via Richard Levitte]
6682 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6683 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6684 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6685 the bitwise-OR of the two for use by the majority of applications
6686 wanting this behaviour, and update the docs. The documented
6687 behaviour and actual behaviour were inconsistent and had been
6688 changing anyway, so this is more a bug-fix than a behavioural
6690 [Geoff Thorpe, diagnosed by Nadav Har'El]
6692 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6693 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6696 *) Fix initialization code race conditions in
6697 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6698 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6699 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6700 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6701 ssl2_get_cipher_by_char(),
6702 ssl3_get_cipher_by_char().
6703 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6705 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6706 the cached sessions are flushed, as the remove_cb() might use ex_data
6707 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6708 (see [openssl.org #212]).
6709 [Geoff Thorpe, Lutz Jaenicke]
6711 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6712 length, instead of the encoding length to d2i_ASN1_OBJECT.
6715 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6717 *) [In 0.9.6g-engine release:]
6718 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6719 [Lynn Gazis <lgazis@rainbow.com>]
6721 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6723 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6724 and get fix the header length calculation.
6725 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6726 Alon Kantor <alonk@checkpoint.com> (and others),
6729 *) Use proper error handling instead of 'assertions' in buffer
6730 overflow checks added in 0.9.6e. This prevents DoS (the
6731 assertions could call abort()).
6732 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6734 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6736 *) Add various sanity checks to asn1_get_length() to reject
6737 the ASN1 length bytes if they exceed sizeof(long), will appear
6738 negative or the content length exceeds the length of the
6740 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6742 *) Fix cipher selection routines: ciphers without encryption had no flags
6743 for the cipher strength set and where therefore not handled correctly
6744 by the selection routines (PR #130).
6747 *) Fix EVP_dsa_sha macro.
6751 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6752 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6753 that was added in OpenSSL 0.9.6d.
6755 As the countermeasure turned out to be incompatible with some
6756 broken SSL implementations, the new option is part of SSL_OP_ALL.
6757 SSL_OP_ALL is usually employed when compatibility with weird SSL
6758 implementations is desired (e.g. '-bugs' option to 's_client' and
6759 's_server'), so the new option is automatically set in many
6763 *) Changes in security patch:
6765 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6766 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6767 Air Force Materiel Command, USAF, under agreement number
6770 *) Add various sanity checks to asn1_get_length() to reject
6771 the ASN1 length bytes if they exceed sizeof(long), will appear
6772 negative or the content length exceeds the length of the
6773 supplied buffer. (CVE-2002-0659)
6774 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6776 *) Assertions for various potential buffer overflows, not known to
6778 [Ben Laurie (CHATS)]
6780 *) Various temporary buffers to hold ASCII versions of integers were
6781 too small for 64 bit platforms. (CVE-2002-0655)
6782 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6784 *) Remote buffer overflow in SSL3 protocol - an attacker could
6785 supply an oversized session ID to a client. (CVE-2002-0656)
6786 [Ben Laurie (CHATS)]
6788 *) Remote buffer overflow in SSL2 protocol - an attacker could
6789 supply an oversized client master key. (CVE-2002-0656)
6790 [Ben Laurie (CHATS)]
6792 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6794 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6795 encoded as NULL) with id-dsa-with-sha1.
6796 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6798 *) Check various X509_...() return values in apps/req.c.
6799 [Nils Larsch <nla@trustcenter.de>]
6801 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6802 an end-of-file condition would erronously be flagged, when the CRLF
6803 was just at the end of a processed block. The bug was discovered when
6804 processing data through a buffering memory BIO handing the data to a
6805 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6806 <ptsekov@syntrex.com> and Nedelcho Stanev.
6809 *) Implement a countermeasure against a vulnerability recently found
6810 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6811 before application data chunks to avoid the use of known IVs
6812 with data potentially chosen by the attacker.
6815 *) Fix length checks in ssl3_get_client_hello().
6818 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6819 to prevent ssl3_read_internal() from incorrectly assuming that
6820 ssl3_read_bytes() found application data while handshake
6821 processing was enabled when in fact s->s3->in_read_app_data was
6822 merely automatically cleared during the initial handshake.
6823 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6825 *) Fix object definitions for Private and Enterprise: they were not
6826 recognized in their shortname (=lowercase) representation. Extend
6827 obj_dat.pl to issue an error when using undefined keywords instead
6828 of silently ignoring the problem (Svenning Sorensen
6829 <sss@sss.dnsalias.net>).
6832 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6833 generators, i.e. generators other than 2 and 5. (Previously, the
6834 code did not properly initialise the 'add' and 'rem' values to
6835 BN_generate_prime().)
6837 In the new general case, we do not insist that 'generator' is
6838 actually a primitive root: This requirement is rather pointless;
6839 a generator of the order-q subgroup is just as good, if not
6843 *) Map new X509 verification errors to alerts. Discovered and submitted by
6844 Tom Wu <tom@arcot.com>.
6847 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6848 returning non-zero before the data has been completely received
6849 when using non-blocking I/O.
6850 [Bodo Moeller; problem pointed out by John Hughes]
6852 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6853 [Ben Laurie, Lutz Jaenicke]
6855 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6856 Yoram Zahavi <YoramZ@gilian.com>).
6859 *) Add information about CygWin 1.3 and on, and preserve proper
6860 configuration for the versions before that.
6861 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6863 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6864 check whether we deal with a copy of a session and do not delete from
6865 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6866 <izhar@checkpoint.com>.
6869 *) Do not store session data into the internal session cache, if it
6870 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6871 flag is set). Proposed by Aslam <aslam@funk.com>.
6874 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6878 *) [In 0.9.6d-engine release:]
6879 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6880 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6882 *) Add the configuration target linux-s390x.
6883 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6885 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6886 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6887 variable as an indication that a ClientHello message has been
6888 received. As the flag value will be lost between multiple
6889 invocations of ssl3_accept when using non-blocking I/O, the
6890 function may not be aware that a handshake has actually taken
6891 place, thus preventing a new session from being added to the
6894 To avoid this problem, we now set s->new_session to 2 instead of
6895 using a local variable.
6896 [Lutz Jaenicke, Bodo Moeller]
6898 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6899 if the SSL_R_LENGTH_MISMATCH error is detected.
6900 [Geoff Thorpe, Bodo Moeller]
6902 *) New 'shared_ldflag' column in Configure platform table.
6905 *) Fix EVP_CIPHER_mode macro.
6906 ["Dan S. Camper" <dan@bti.net>]
6908 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6909 type, we must throw them away by setting rr->length to 0.
6910 [D P Chang <dpc@qualys.com>]
6912 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6914 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6915 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6916 worked incorrectly for those cases where range = 10..._2 and
6917 3*range is two bits longer than range.)
6920 *) Only add signing time to PKCS7 structures if it is not already
6924 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6925 OBJ_ld_ce should be OBJ_id_ce.
6926 Also some ip-pda OIDs in crypto/objects/objects.txt were
6927 incorrect (cf. RFC 3039).
6928 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6930 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6931 returns early because it has nothing to do.
6932 [Andy Schneider <andy.schneider@bjss.co.uk>]
6934 *) [In 0.9.6c-engine release:]
6935 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6936 [Andy Schneider <andy.schneider@bjss.co.uk>]
6938 *) [In 0.9.6c-engine release:]
6939 Add support for Cryptographic Appliance's keyserver technology.
6940 (Use engine 'keyclient')
6941 [Cryptographic Appliances and Geoff Thorpe]
6943 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6944 is called via tools/c89.sh because arguments have to be
6945 rearranged (all '-L' options must appear before the first object
6947 [Richard Shapiro <rshapiro@abinitio.com>]
6949 *) [In 0.9.6c-engine release:]
6950 Add support for Broadcom crypto accelerator cards, backported
6952 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6954 *) [In 0.9.6c-engine release:]
6955 Add support for SureWare crypto accelerator cards from
6956 Baltimore Technologies. (Use engine 'sureware')
6957 [Baltimore Technologies and Mark Cox]
6959 *) [In 0.9.6c-engine release:]
6960 Add support for crypto accelerator cards from Accelerated
6961 Encryption Processing, www.aep.ie. (Use engine 'aep')
6962 [AEP Inc. and Mark Cox]
6964 *) Add a configuration entry for gcc on UnixWare.
6965 [Gary Benson <gbenson@redhat.com>]
6967 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6968 messages are stored in a single piece (fixed-length part and
6969 variable-length part combined) and fix various bugs found on the way.
6972 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6973 instead. BIO_gethostbyname() does not know what timeouts are
6974 appropriate, so entries would stay in cache even when they have
6976 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6978 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6979 faced with a pathologically small ClientHello fragment that does
6980 not contain client_version: Instead of aborting with an error,
6981 simply choose the highest available protocol version (i.e.,
6982 TLS 1.0 unless it is disabled). In practice, ClientHello
6983 messages are never sent like this, but this change gives us
6984 strictly correct behaviour at least for TLS.
6987 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6988 never resets s->method to s->ctx->method when called from within
6989 one of the SSL handshake functions.
6990 [Bodo Moeller; problem pointed out by Niko Baric]
6992 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6993 (sent using the client's version number) if client_version is
6994 smaller than the protocol version in use. Also change
6995 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6996 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6997 the client will at least see that alert.
7000 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7004 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7005 client receives HelloRequest while in a handshake.
7006 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7008 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7009 should end in 'break', not 'goto end' which circumvents various
7010 cleanups done in state SSL_ST_OK. But session related stuff
7011 must be disabled for SSL_ST_OK in the case that we just sent a
7014 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7015 before just sending a HelloRequest.
7016 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7018 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7019 reveal whether illegal block cipher padding was found or a MAC
7020 verification error occured. (Neither SSLerr() codes nor alerts
7021 are directly visible to potential attackers, but the information
7022 may leak via logfiles.)
7024 Similar changes are not required for the SSL 2.0 implementation
7025 because the number of padding bytes is sent in clear for SSL 2.0,
7026 and the extra bytes are just ignored. However ssl/s2_pkt.c
7027 failed to verify that the purported number of padding bytes is in
7031 *) Add OpenUNIX-8 support including shared libraries
7032 (Boyd Lynn Gerber <gerberb@zenez.com>).
7035 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7036 'wristwatch attack' using huge encoding parameters (cf.
7037 James H. Manger's CRYPTO 2001 paper). Note that the
7038 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7039 encoding parameters and hence was not vulnerable.
7042 *) BN_sqr() bug fix.
7043 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7045 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7046 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7047 followed by modular reduction.
7048 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7050 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7051 equivalent based on BN_pseudo_rand() instead of BN_rand().
7054 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7055 This function was broken, as the check for a new client hello message
7056 to handle SGC did not allow these large messages.
7057 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7060 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7063 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7064 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7067 *) Rework the configuration and shared library support for Tru64 Unix.
7068 The configuration part makes use of modern compiler features and
7069 still retains old compiler behavior for those that run older versions
7070 of the OS. The shared library support part includes a variant that
7071 uses the RPATH feature, and is available through the special
7072 configuration target "alpha-cc-rpath", which will never be selected
7074 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7076 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7077 with the same message size as in ssl3_get_certificate_request().
7078 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7079 messages might inadvertently be reject as too long.
7080 [Petr Lampa <lampa@fee.vutbr.cz>]
7082 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7085 *) Modified SSL library such that the verify_callback that has been set
7086 specificly for an SSL object with SSL_set_verify() is actually being
7087 used. Before the change, a verify_callback set with this function was
7088 ignored and the verify_callback() set in the SSL_CTX at the time of
7089 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7090 to allow the necessary settings.
7093 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7094 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7095 done automatically (in contradiction to the requirements of the C
7096 standard). This made problems when used from OpenSSH.
7099 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7100 dh->length and always used
7102 BN_rand_range(priv_key, dh->p).
7104 BN_rand_range() is not necessary for Diffie-Hellman, and this
7105 specific range makes Diffie-Hellman unnecessarily inefficient if
7106 dh->length (recommended exponent length) is much smaller than the
7107 length of dh->p. We could use BN_rand_range() if the order of
7108 the subgroup was stored in the DH structure, but we only have
7113 BN_rand(priv_key, l, ...)
7115 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7121 RSA_eay_public_encrypt
7122 RSA_eay_private_decrypt
7123 RSA_eay_private_encrypt (signing)
7124 RSA_eay_public_decrypt (signature verification)
7126 (default implementations for RSA_public_encrypt,
7127 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7128 always reject numbers >= n.
7131 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7132 to synchronize access to 'locking_thread'. This is necessary on
7133 systems where access to 'locking_thread' (an 'unsigned long'
7134 variable) is not atomic.
7137 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7138 *before* setting the 'crypto_lock_rand' flag. The previous code had
7139 a race condition if 0 is a valid thread ID.
7140 [Travis Vitek <vitek@roguewave.com>]
7142 *) Add support for shared libraries under Irix.
7143 [Albert Chin-A-Young <china@thewrittenword.com>]
7145 *) Add configuration option to build on Linux on both big-endian and
7147 [Ralf Baechle <ralf@uni-koblenz.de>]
7149 *) Add the possibility to create shared libraries on HP-UX.
7152 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7154 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7155 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7156 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7157 PRNG state recovery was possible based on the output of
7158 one PRNG request appropriately sized to gain knowledge on
7159 'md' followed by enough consecutive 1-byte PRNG requests
7160 to traverse all of 'state'.
7162 1. When updating 'md_local' (the current thread's copy of 'md')
7163 during PRNG output generation, hash all of the previous
7164 'md_local' value, not just the half used for PRNG output.
7166 2. Make the number of bytes from 'state' included into the hash
7167 independent from the number of PRNG bytes requested.
7169 The first measure alone would be sufficient to avoid
7170 Markku-Juhani's attack. (Actually it had never occurred
7171 to me that the half of 'md_local' used for chaining was the
7172 half from which PRNG output bytes were taken -- I had always
7173 assumed that the secret half would be used.) The second
7174 measure makes sure that additional data from 'state' is never
7175 mixed into 'md_local' in small portions; this heuristically
7176 further strengthens the PRNG.
7179 *) Fix crypto/bn/asm/mips3.s.
7182 *) When only the key is given to "enc", the IV is undefined. Print out
7183 an error message in this case.
7186 *) Handle special case when X509_NAME is empty in X509 printing routines.
7189 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7190 positive and less than q.
7193 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7194 used: it isn't thread safe and the add_lock_callback should handle
7196 [Paul Rose <Paul.Rose@bridge.com>]
7198 *) Verify that incoming data obeys the block size in
7199 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7203 [Ulf Möller, Bodo Möller]
7205 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7206 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7207 when fixing the server behaviour for backwards-compatible 'client
7208 hello' messages. (Note that the attack is impractical against
7209 SSL 3.0 and TLS 1.0 anyway because length and version checking
7210 means that the probability of guessing a valid ciphertext is
7211 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7214 Before 0.9.5, the countermeasure (hide the error by generating a
7215 random 'decryption result') did not work properly because
7216 ERR_clear_error() was missing, meaning that SSL_get_error() would
7217 detect the supposedly ignored error.
7219 Both problems are now fixed.
7222 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7223 (previously it was 1024).
7226 *) Fix for compatibility mode trust settings: ignore trust settings
7227 unless some valid trust or reject settings are present.
7230 *) Fix for blowfish EVP: its a variable length cipher.
7233 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7234 parameters in DSA public key structures and return an error in the
7235 DSA routines if parameters are absent.
7238 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7239 in the current directory if neither $RANDFILE nor $HOME was set.
7240 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7241 caused some confusion to Windows users who haven't defined $HOME.
7242 Thus RAND_file_name() is changed again: e_os.h can define a
7243 DEFAULT_HOME, which will be used if $HOME is not set.
7244 For Windows, we use "C:"; on other platforms, we still require
7245 environment variables.
7247 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7248 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7249 having multiple threads call RAND_poll() concurrently.
7252 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7253 combination of a flag and a thread ID variable.
7254 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7255 flag), *other* threads can enter ssleay_add_bytes without obeying
7256 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7257 that they do not hold after the first thread unsets add_do_not_lock).
7260 *) Change bctest again: '-x' expressions are not available in all
7264 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7266 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7267 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7269 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7270 the default extension for executables, if any. Also, make the perl
7271 scripts that use symlink() to test if it really exists and use "cp"
7272 if it doesn't. All this made OpenSSL compilable and installable in
7276 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7277 If SEQUENCE is length is indefinite just set c->slen to the total
7278 amount of data available.
7279 [Steve Henson, reported by shige@FreeBSD.org]
7280 [This change does not apply to 0.9.7.]
7282 *) Change bctest to avoid here-documents inside command substitution
7283 (workaround for FreeBSD /bin/sh bug).
7284 For compatibility with Ultrix, avoid shell functions (introduced
7285 in the bctest version that searches along $PATH).
7288 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7289 with des_encrypt() defined on some operating systems, like Solaris
7293 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7294 On the Importance of Eliminating Errors in Cryptographic
7295 Computations, J. Cryptology 14 (2001) 2, 101-119,
7296 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7299 *) MIPS assembler BIGNUM division bug fix.
7302 *) Disabled incorrect Alpha assembler code.
7305 *) Fix PKCS#7 decode routines so they correctly update the length
7306 after reading an EOC for the EXPLICIT tag.
7308 [This change does not apply to 0.9.7.]
7310 *) Fix bug in PKCS#12 key generation routines. This was triggered
7311 if a 3DES key was generated with a 0 initial byte. Include
7312 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7313 (but broken) behaviour.
7316 *) Enhance bctest to search for a working bc along $PATH and print
7318 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7320 *) Fix memory leaks in err.c: free err_data string if necessary;
7321 don't write to the wrong index in ERR_set_error_data.
7324 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7328 *) Replace rdtsc with _emit statements for VC++ version 5.
7329 [Jeremy Cooper <jeremy@baymoo.org>]
7331 *) Make it possible to reuse SSLv2 sessions.
7334 *) In copy_email() check for >= 0 as a return value for
7335 X509_NAME_get_index_by_NID() since 0 is a valid index.
7336 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7338 *) Avoid coredump with unsupported or invalid public keys by checking if
7339 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7340 PKCS7_verify() fails with non detached data.
7343 *) Don't use getenv in library functions when run as setuid/setgid.
7344 New function OPENSSL_issetugid().
7347 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7348 due to incorrect handling of multi-threading:
7350 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7352 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7354 3. Count how many times MemCheck_off() has been called so that
7355 nested use can be treated correctly. This also avoids
7356 inband-signalling in the previous code (which relied on the
7357 assumption that thread ID 0 is impossible).
7360 *) Add "-rand" option also to s_client and s_server.
7363 *) Fix CPU detection on Irix 6.x.
7364 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7365 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7367 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7370 [This change does not apply to 0.9.7.]
7372 *) Use the cached encoding of an X509_NAME structure rather than
7373 copying it. This is apparently the reason for the libsafe "errors"
7374 but the code is actually correct.
7377 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7378 Bleichenbacher's DSA attack.
7379 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7380 to be set and top=0 forces the highest bit to be set; top=-1 is new
7381 and leaves the highest bit random.
7382 [Ulf Moeller, Bodo Moeller]
7384 *) In the NCONF_...-based implementations for CONF_... queries
7385 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7386 a temporary CONF structure with the data component set to NULL
7387 (which gives segmentation faults in lh_retrieve).
7388 Instead, use NULL for the CONF pointer in CONF_get_string and
7389 CONF_get_number (which may use environment variables) and directly
7390 return NULL from CONF_get_section.
7393 *) Fix potential buffer overrun for EBCDIC.
7396 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7397 keyUsage if basicConstraints absent for a CA.
7400 *) Make SMIME_write_PKCS7() write mail header values with a format that
7401 is more generally accepted (no spaces before the semicolon), since
7402 some programs can't parse those values properly otherwise. Also make
7403 sure BIO's that break lines after each write do not create invalid
7407 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7408 macros previously used would not encode an empty SEQUENCE OF
7409 and break the signature.
7411 [This change does not apply to 0.9.7.]
7413 *) Zero the premaster secret after deriving the master secret in
7417 *) Add some EVP_add_digest_alias registrations (as found in
7418 OpenSSL_add_all_digests()) to SSL_library_init()
7419 aka OpenSSL_add_ssl_algorithms(). This provides improved
7420 compatibility with peers using X.509 certificates
7421 with unconventional AlgorithmIdentifier OIDs.
7424 *) Fix for Irix with NO_ASM.
7425 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7427 *) ./config script fixes.
7428 [Ulf Moeller, Richard Levitte]
7430 *) Fix 'openssl passwd -1'.
7433 *) Change PKCS12_key_gen_asc() so it can cope with non null
7434 terminated strings whose length is passed in the passlen
7435 parameter, for example from PEM callbacks. This was done
7436 by adding an extra length parameter to asc2uni().
7437 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7439 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7440 call failed, free the DSA structure.
7443 *) Fix to uni2asc() to cope with zero length Unicode strings.
7444 These are present in some PKCS#12 files.
7447 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7448 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7449 when writing a 32767 byte record.
7450 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7452 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7453 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7455 (RSA objects have a reference count access to which is protected
7456 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7457 so they are meant to be shared between threads.)
7458 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7459 "Reddie, Steven" <Steven.Reddie@ca.com>]
7461 *) Fix a deadlock in CRYPTO_mem_leaks().
7464 *) Use better test patterns in bntest.
7467 *) rand_win.c fix for Borland C.
7470 *) BN_rshift bugfix for n == 0.
7473 *) Add a 'bctest' script that checks for some known 'bc' bugs
7474 so that 'make test' does not abort just because 'bc' is broken.
7477 *) Store verify_result within SSL_SESSION also for client side to
7478 avoid potential security hole. (Re-used sessions on the client side
7479 always resulted in verify_result==X509_V_OK, not using the original
7480 result of the server certificate verification.)
7483 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7484 SSL3_RT_APPLICATION_DATA, return 0.
7485 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7489 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7490 releases, have been re-implemented by renaming the previous
7491 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7492 and ssl3_read_internal, respectively, and adding 'peek' parameters
7493 to them. The new ssl[23]_{read,peek} functions are calls to
7494 ssl[23]_read_internal with the 'peek' flag set appropriately.
7495 A 'peek' parameter has also been added to ssl3_read_bytes, which
7496 does the actual work for ssl3_read_internal.
7499 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7500 the method-specific "init()" handler. Also clean up ex_data after
7501 calling the method-specific "finish()" handler. Previously, this was
7502 happening the other way round.
7505 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7506 The previous value, 12, was not always sufficient for BN_mod_exp().
7509 *) Make sure that shared libraries get the internal name engine with
7510 the full version number and not just 0. This should mark the
7511 shared libraries as not backward compatible. Of course, this should
7512 be changed again when we can guarantee backward binary compatibility.
7515 *) Fix typo in get_cert_by_subject() in by_dir.c
7516 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7518 *) Rework the system to generate shared libraries:
7520 - Make note of the expected extension for the shared libraries and
7521 if there is a need for symbolic links from for example libcrypto.so.0
7522 to libcrypto.so.0.9.7. There is extended info in Configure for
7525 - Make as few rebuilds of the shared libraries as possible.
7527 - Still avoid linking the OpenSSL programs with the shared libraries.
7529 - When installing, install the shared libraries separately from the
7533 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7535 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7536 and not in SSL_clear because the latter is also used by the
7537 accept/connect functions; previously, the settings made by
7538 SSL_set_read_ahead would be lost during the handshake.
7539 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7541 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7542 Previously, it would create entries for disableed algorithms no
7546 *) Added several new manual pages for SSL_* function.
7549 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7551 *) In ssl23_get_client_hello, generate an error message when faced
7552 with an initial SSL 3.0/TLS record that is too small to contain the
7553 first two bytes of the ClientHello message, i.e. client_version.
7554 (Note that this is a pathologic case that probably has never happened
7555 in real life.) The previous approach was to use the version number
7556 from the record header as a substitute; but our protocol choice
7557 should not depend on that one because it is not authenticated
7558 by the Finished messages.
7561 *) More robust randomness gathering functions for Windows.
7562 [Jeffrey Altman <jaltman@columbia.edu>]
7564 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7565 not set then we don't setup the error code for issuer check errors
7566 to avoid possibly overwriting other errors which the callback does
7567 handle. If an application does set the flag then we assume it knows
7568 what it is doing and can handle the new informational codes
7572 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7573 a general "ANY" type, as such it should be able to decode anything
7574 including tagged types. However it didn't check the class so it would
7575 wrongly interpret tagged types in the same way as their universal
7576 counterpart and unknown types were just rejected. Changed so that the
7577 tagged and unknown types are handled in the same way as a SEQUENCE:
7578 that is the encoding is stored intact. There is also a new type
7579 "V_ASN1_OTHER" which is used when the class is not universal, in this
7580 case we have no idea what the actual type is so we just lump them all
7584 *) On VMS, stdout may very well lead to a file that is written to
7585 in a record-oriented fashion. That means that every write() will
7586 write a separate record, which will be read separately by the
7587 programs trying to read from it. This can be very confusing.
7589 The solution is to put a BIO filter in the way that will buffer
7590 text until a linefeed is reached, and then write everything a
7591 line at a time, so every record written will be an actual line,
7592 not chunks of lines and not (usually doesn't happen, but I've
7593 seen it once) several lines in one record. BIO_f_linebuffer() is
7596 Currently, it's a VMS-only method, because that's where it has
7597 been tested well enough.
7600 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7601 it can return incorrect results.
7602 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7603 but it was in 0.9.6-beta[12].)
7606 *) Disable the check for content being present when verifying detached
7607 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7608 include zero length content when signing messages.
7611 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7612 BIO_ctrl (for BIO pairs).
7615 *) Add DSO method for VMS.
7618 *) Bug fix: Montgomery multiplication could produce results with the
7622 *) Add RPM specification openssl.spec and modify it to build three
7623 packages. The default package contains applications, application
7624 documentation and run-time libraries. The devel package contains
7625 include files, static libraries and function documentation. The
7626 doc package contains the contents of the doc directory. The original
7627 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7630 *) Add a large number of documentation files for many SSL routines.
7631 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7633 *) Add a configuration entry for Sony News 4.
7634 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7636 *) Don't set the two most significant bits to one when generating a
7637 random number < q in the DSA library.
7640 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7641 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7642 the underlying transport is blocking) if a handshake took place.
7643 (The default behaviour is needed by applications such as s_client
7644 and s_server that use select() to determine when to use SSL_read;
7645 but for applications that know in advance when to expect data, it
7646 just makes things more complicated.)
7649 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7653 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7654 work better on such systems.
7655 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7657 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7658 Update PKCS12_parse() so it copies the friendlyName and the
7659 keyid to the certificates aux info.
7662 *) Fix bug in PKCS7_verify() which caused an infinite loop
7663 if there was more than one signature.
7664 [Sven Uszpelkat <su@celocom.de>]
7666 *) Major change in util/mkdef.pl to include extra information
7667 about each symbol, as well as presenting variables as well
7668 as functions. This change means that there's n more need
7669 to rebuild the .num files when some algorithms are excluded.
7672 *) Allow the verify time to be set by an application,
7673 rather than always using the current time.
7676 *) Phase 2 verify code reorganisation. The certificate
7677 verify code now looks up an issuer certificate by a
7678 number of criteria: subject name, authority key id
7679 and key usage. It also verifies self signed certificates
7680 by the same criteria. The main comparison function is
7681 X509_check_issued() which performs these checks.
7683 Lot of changes were necessary in order to support this
7684 without completely rewriting the lookup code.
7686 Authority and subject key identifier are now cached.
7688 The LHASH 'certs' is X509_STORE has now been replaced
7689 by a STACK_OF(X509_OBJECT). This is mainly because an
7690 LHASH can't store or retrieve multiple objects with
7691 the same hash value.
7693 As a result various functions (which were all internal
7694 use only) have changed to handle the new X509_STORE
7695 structure. This will break anything that messed round
7696 with X509_STORE internally.
7698 The functions X509_STORE_add_cert() now checks for an
7699 exact match, rather than just subject name.
7701 The X509_STORE API doesn't directly support the retrieval
7702 of multiple certificates matching a given criteria, however
7703 this can be worked round by performing a lookup first
7704 (which will fill the cache with candidate certificates)
7705 and then examining the cache for matches. This is probably
7706 the best we can do without throwing out X509_LOOKUP
7707 entirely (maybe later...).
7709 The X509_VERIFY_CTX structure has been enhanced considerably.
7711 All certificate lookup operations now go via a get_issuer()
7712 callback. Although this currently uses an X509_STORE it
7713 can be replaced by custom lookups. This is a simple way
7714 to bypass the X509_STORE hackery necessary to make this
7715 work and makes it possible to use more efficient techniques
7716 in future. A very simple version which uses a simple
7717 STACK for its trusted certificate store is also provided
7718 using X509_STORE_CTX_trusted_stack().
7720 The verify_cb() and verify() callbacks now have equivalents
7721 in the X509_STORE_CTX structure.
7723 X509_STORE_CTX also has a 'flags' field which can be used
7724 to customise the verify behaviour.
7727 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7728 excludes S/MIME capabilities.
7731 *) When a certificate request is read in keep a copy of the
7732 original encoding of the signed data and use it when outputing
7733 again. Signatures then use the original encoding rather than
7734 a decoded, encoded version which may cause problems if the
7735 request is improperly encoded.
7738 *) For consistency with other BIO_puts implementations, call
7739 buffer_write(b, ...) directly in buffer_puts instead of calling
7742 In BIO_puts, increment b->num_write as in BIO_write.
7743 [Peter.Sylvester@EdelWeb.fr]
7745 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7746 BN_zero, we may not return a BIGNUM with an array consisting of
7750 *) Avoid calling abort() from within the library when problems are
7751 detected, except if preprocessor symbols have been defined
7752 (such as REF_CHECK, BN_DEBUG etc.).
7755 *) New openssl application 'rsautl'. This utility can be
7756 used for low level RSA operations. DER public key
7757 BIO/fp routines also added.
7760 *) New Configure entry and patches for compiling on QNX 4.
7761 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7763 *) A demo state-machine implementation was sponsored by
7764 Nuron (http://www.nuron.com/) and is now available in
7765 demos/state_machine.
7768 *) New options added to the 'dgst' utility for signature
7769 generation and verification.
7772 *) Unrecognized PKCS#7 content types are now handled via a
7773 catch all ASN1_TYPE structure. This allows unsupported
7774 types to be stored as a "blob" and an application can
7775 encode and decode it manually.
7778 *) Fix various signed/unsigned issues to make a_strex.c
7780 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7782 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7783 length if passed a buffer. ASN1_INTEGER_to_BN failed
7784 if passed a NULL BN and its argument was negative.
7785 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7787 *) Modification to PKCS#7 encoding routines to output definite
7788 length encoding. Since currently the whole structures are in
7789 memory there's not real point in using indefinite length
7790 constructed encoding. However if OpenSSL is compiled with
7791 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7794 *) Added BIO_vprintf() and BIO_vsnprintf().
7797 *) Added more prefixes to parse for in the the strings written
7798 through a logging bio, to cover all the levels that are available
7799 through syslog. The prefixes are now:
7801 PANIC, EMERG, EMR => LOG_EMERG
7802 ALERT, ALR => LOG_ALERT
7803 CRIT, CRI => LOG_CRIT
7804 ERROR, ERR => LOG_ERR
7805 WARNING, WARN, WAR => LOG_WARNING
7806 NOTICE, NOTE, NOT => LOG_NOTICE
7807 INFO, INF => LOG_INFO
7808 DEBUG, DBG => LOG_DEBUG
7810 and as before, if none of those prefixes are present at the
7811 beginning of the string, LOG_ERR is chosen.
7813 On Win32, the LOG_* levels are mapped according to this:
7815 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7816 LOG_WARNING => EVENTLOG_WARNING_TYPE
7817 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7821 *) Made it possible to reconfigure with just the configuration
7822 argument "reconf" or "reconfigure". The command line arguments
7823 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7824 and are retrieved from there when reconfiguring.
7828 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7830 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7833 *) The obj_dat.pl script was messing up the sorting of object
7834 names. The reason was that it compared the quoted version
7835 of strings as a result "OCSP" > "OCSP Signing" because
7836 " > SPACE. Changed script to store unquoted versions of
7837 names and add quotes on output. It was also omitting some
7838 names from the lookup table if they were given a default
7839 value (that is if SN is missing it is given the same
7840 value as LN and vice versa), these are now added on the
7841 grounds that if an object has a name we should be able to
7842 look it up. Finally added warning output when duplicate
7843 short or long names are found.
7846 *) Changes needed for Tandem NSK.
7847 [Scott Uroff <scott@xypro.com>]
7849 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7850 RSA_padding_check_SSLv23(), special padding was never detected
7851 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7852 version rollback attacks was not effective.
7854 In s23_clnt.c, don't use special rollback-attack detection padding
7855 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7856 client; similarly, in s23_srvr.c, don't do the rollback check if
7857 SSL 2.0 is the only protocol enabled in the server.
7860 *) Make it possible to get hexdumps of unprintable data with 'openssl
7861 asn1parse'. By implication, the functions ASN1_parse_dump() and
7862 BIO_dump_indent() are added.
7865 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7866 these print out strings and name structures based on various
7867 flags including RFC2253 support and proper handling of
7868 multibyte characters. Added options to the 'x509' utility
7869 to allow the various flags to be set.
7872 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7873 Also change the functions X509_cmp_current_time() and
7874 X509_gmtime_adj() work with an ASN1_TIME structure,
7875 this will enable certificates using GeneralizedTime in validity
7876 dates to be checked.
7879 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7880 negative public key encodings) on by default,
7881 NO_NEG_PUBKEY_BUG can be set to disable it.
7884 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7885 content octets. An i2c_ASN1_OBJECT is unnecessary because
7886 the encoding can be trivially obtained from the structure.
7889 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7890 not read locks (CRYPTO_r_[un]lock).
7893 *) A first attempt at creating official support for shared
7894 libraries through configuration. I've kept it so the
7895 default is static libraries only, and the OpenSSL programs
7896 are always statically linked for now, but there are
7897 preparations for dynamic linking in place.
7898 This has been tested on Linux and Tru64.
7901 *) Randomness polling function for Win9x, as described in:
7902 Peter Gutmann, Software Generation of Practically Strong
7906 *) Fix so PRNG is seeded in req if using an already existing
7910 *) New options to smime application. -inform and -outform
7911 allow alternative formats for the S/MIME message including
7912 PEM and DER. The -content option allows the content to be
7913 specified separately. This should allow things like Netscape
7914 form signing output easier to verify.
7917 *) Fix the ASN1 encoding of tags using the 'long form'.
7920 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7921 STRING types. These convert content octets to and from the
7922 underlying type. The actual tag and length octets are
7923 already assumed to have been read in and checked. These
7924 are needed because all other string types have virtually
7925 identical handling apart from the tag. By having versions
7926 of the ASN1 functions that just operate on content octets
7927 IMPLICIT tagging can be handled properly. It also allows
7928 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7929 and ASN1_INTEGER are identical apart from the tag.
7932 *) Change the handling of OID objects as follows:
7934 - New object identifiers are inserted in objects.txt, following
7935 the syntax given in objects.README.
7936 - objects.pl is used to process obj_mac.num and create a new
7938 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7941 This is currently kind of a hack, and the perl code in objects.pl
7942 isn't very elegant, but it works as I intended. The simplest way
7943 to check that it worked correctly is to look in obj_dat.h and
7944 check the array nid_objs and make sure the objects haven't moved
7945 around (this is important!). Additions are OK, as well as
7946 consistent name changes.
7949 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7952 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7953 The given file adds to whatever has already been seeded into the
7954 random pool through the RANDFILE configuration file option or
7955 environment variable, or the default random state file.
7958 *) mkstack.pl now sorts each macro group into lexical order.
7959 Previously the output order depended on the order the files
7960 appeared in the directory, resulting in needless rewriting
7964 *) Patches to make OpenSSL compile under Win32 again. Mostly
7965 work arounds for the VC++ problem that it treats func() as
7966 func(void). Also stripped out the parts of mkdef.pl that
7967 added extra typesafe functions: these no longer exist.
7970 *) Reorganisation of the stack code. The macros are now all
7971 collected in safestack.h . Each macro is defined in terms of
7972 a "stack macro" of the form SKM_<name>(type, a, b). The
7973 DEBUG_SAFESTACK is now handled in terms of function casts,
7974 this has the advantage of retaining type safety without the
7975 use of additional functions. If DEBUG_SAFESTACK is not defined
7976 then the non typesafe macros are used instead. Also modified the
7977 mkstack.pl script to handle the new form. Needs testing to see
7978 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7979 the default if no major problems. Similar behaviour for ASN1_SET_OF
7980 and PKCS12_STACK_OF.
7983 *) When some versions of IIS use the 'NET' form of private key the
7984 key derivation algorithm is different. Normally MD5(password) is
7985 used as a 128 bit RC4 key. In the modified case
7986 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
7987 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7988 as the old Netscape_RSA functions except they have an additional
7989 'sgckey' parameter which uses the modified algorithm. Also added
7990 an -sgckey command line option to the rsa utility. Thanks to
7991 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7992 algorithm to openssl-dev.
7995 *) The evp_local.h macros were using 'c.##kname' which resulted in
7996 invalid expansion on some systems (SCO 5.0.5 for example).
7997 Corrected to 'c.kname'.
7998 [Phillip Porch <root@theporch.com>]
8000 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8001 a STACK of email addresses from a certificate or request, these look
8002 in the subject name and the subject alternative name extensions and
8003 omit any duplicate addresses.
8006 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8007 This makes DSA verification about 2 % faster.
8010 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8011 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8012 plus overhead for 1024 bit moduli).
8013 This makes exponentiations about 0.5 % faster for 1024 bit
8014 exponents (as measured by "openssl speed rsa2048").
8017 *) Rename memory handling macros to avoid conflicts with other
8019 Malloc => OPENSSL_malloc
8020 Malloc_locked => OPENSSL_malloc_locked
8021 Realloc => OPENSSL_realloc
8022 Free => OPENSSL_free
8025 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8026 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8029 *) CygWin32 support.
8030 [John Jarvie <jjarvie@newsguy.com>]
8032 *) The type-safe stack code has been rejigged. It is now only compiled
8033 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8034 by default all type-specific stack functions are "#define"d back to
8035 standard stack functions. This results in more streamlined output
8036 but retains the type-safety checking possibilities of the original
8040 *) The STACK code has been cleaned up, and certain type declarations
8041 that didn't make a lot of sense have been brought in line. This has
8042 also involved a cleanup of sorts in safestack.h to more correctly
8043 map type-safe stack functions onto their plain stack counterparts.
8044 This work has also resulted in a variety of "const"ifications of
8045 lots of the code, especially "_cmp" operations which should normally
8046 be prototyped with "const" parameters anyway.
8049 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8050 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8051 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8052 where all of 'md' is used each time the PRNG is used, but 'state'
8053 is used only indexed by a cyclic counter. As entropy may not be
8054 well distributed from the beginning, 'md' is important as a
8055 chaining variable. However, the output function chains only half
8056 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8057 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8058 in all of 'state' being rewritten, with the new values depending
8059 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8062 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8063 the handshake is continued after ssl_verify_cert_chain();
8064 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8065 can lead to 'unexplainable' connection aborts later.
8066 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8068 *) Major EVP API cipher revision.
8069 Add hooks for extra EVP features. This allows various cipher
8070 parameters to be set in the EVP interface. Support added for variable
8071 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8072 setting of RC2 and RC5 parameters.
8074 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8077 Remove lots of duplicated code from the EVP library. For example *every*
8078 cipher init() function handles the 'iv' in the same way according to the
8079 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8080 for CFB and OFB modes they zero ctx->num.
8082 New functionality allows removal of S/MIME code RC2 hack.
8084 Most of the routines have the same form and so can be declared in terms
8087 By shifting this to the top level EVP_CipherInit() it can be removed from
8088 all individual ciphers. If the cipher wants to handle IVs or keys
8089 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8092 Change lots of functions like EVP_EncryptUpdate() to now return a
8093 value: although software versions of the algorithms cannot fail
8094 any installed hardware versions can.
8097 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8098 this option is set, tolerate broken clients that send the negotiated
8099 protocol version number instead of the requested protocol version
8103 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8104 i.e. non-zero for export ciphersuites, zero otherwise.
8105 Previous versions had this flag inverted, inconsistent with
8106 rsa_tmp_cb (..._TMP_RSA_CB).
8107 [Bodo Moeller; problem reported by Amit Chopra]
8109 *) Add missing DSA library text string. Work around for some IIS
8110 key files with invalid SEQUENCE encoding.
8113 *) Add a document (doc/standards.txt) that list all kinds of standards
8114 and so on that are implemented in OpenSSL.
8117 *) Enhance c_rehash script. Old version would mishandle certificates
8118 with the same subject name hash and wouldn't handle CRLs at all.
8119 Added -fingerprint option to crl utility, to support new c_rehash
8123 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8126 *) Fix for SSL server purpose checking. Server checking was
8127 rejecting certificates which had extended key usage present
8128 but no ssl client purpose.
8129 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8131 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8132 is a little unclear about how a blank password is handled.
8133 Since the password in encoded as a BMPString with terminating
8134 double NULL a zero length password would end up as just the
8135 double NULL. However no password at all is different and is
8136 handled differently in the PKCS#12 key generation code. NS
8137 treats a blank password as zero length. MSIE treats it as no
8138 password on export: but it will try both on import. We now do
8139 the same: PKCS12_parse() tries zero length and no password if
8140 the password is set to "" or NULL (NULL is now a valid password:
8141 it wasn't before) as does the pkcs12 application.
8144 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8145 perror when PEM_read_bio_X509_REQ fails, the error message must
8146 be obtained from the error queue.
8149 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8150 it in ERR_remove_state if appropriate, and change ERR_get_state
8151 accordingly to avoid race conditions (this is necessary because
8152 thread_hash is no longer constant once set).
8155 *) Bugfix for linux-elf makefile.one.
8158 *) RSA_get_default_method() will now cause a default
8159 RSA_METHOD to be chosen if one doesn't exist already.
8160 Previously this was only set during a call to RSA_new()
8161 or RSA_new_method(NULL) meaning it was possible for
8162 RSA_get_default_method() to return NULL.
8165 *) Added native name translation to the existing DSO code
8166 that will convert (if the flag to do so is set) filenames
8167 that are sufficiently small and have no path information
8168 into a canonical native form. Eg. "blah" converted to
8169 "libblah.so" or "blah.dll" etc.
8172 *) New function ERR_error_string_n(e, buf, len) which is like
8173 ERR_error_string(e, buf), but writes at most 'len' bytes
8174 including the 0 terminator. For ERR_error_string_n, 'buf'
8176 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8178 *) CONF library reworked to become more general. A new CONF
8179 configuration file reader "class" is implemented as well as a
8180 new functions (NCONF_*, for "New CONF") to handle it. The now
8181 old CONF_* functions are still there, but are reimplemented to
8182 work in terms of the new functions. Also, a set of functions
8183 to handle the internal storage of the configuration data is
8184 provided to make it easier to write new configuration file
8185 reader "classes" (I can definitely see something reading a
8186 configuration file in XML format, for example), called _CONF_*,
8187 or "the configuration storage API"...
8189 The new configuration file reading functions are:
8191 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8192 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8194 NCONF_default, NCONF_WIN32
8196 NCONF_dump_fp, NCONF_dump_bio
8198 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8199 NCONF_new creates a new CONF object. This works in the same way
8200 as other interfaces in OpenSSL, like the BIO interface.
8201 NCONF_dump_* dump the internal storage of the configuration file,
8202 which is useful for debugging. All other functions take the same
8203 arguments as the old CONF_* functions wth the exception of the
8204 first that must be a `CONF *' instead of a `LHASH *'.
8206 To make it easer to use the new classes with the old CONF_* functions,
8207 the function CONF_set_default_method is provided.
8210 *) Add '-tls1' option to 'openssl ciphers', which was already
8211 mentioned in the documentation but had not been implemented.
8212 (This option is not yet really useful because even the additional
8213 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8216 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8217 OpenSSL-based applications) load shared libraries and bind to
8218 them in a portable way.
8219 [Geoff Thorpe, with contributions from Richard Levitte]
8221 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8223 *) Make sure _lrotl and _lrotr are only used with MSVC.
8225 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8226 (the default implementation of RAND_status).
8228 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8229 to '-clrext' (= clear extensions), as intended and documented.
8230 [Bodo Moeller; inconsistency pointed out by Michael Attili
8233 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8234 was larger than the MD block size.
8235 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8237 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8238 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8239 using the passed key: if the passed key was a private key the result
8240 of X509_print(), for example, would be to print out all the private key
8244 *) des_quad_cksum() byte order bug fix.
8245 [Ulf Möller, using the problem description in krb4-0.9.7, where
8246 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8248 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8250 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8252 *) For easily testing in shell scripts whether some command
8253 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8254 returns with exit code 0 iff no command of the given name is available.
8255 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8256 the output goes to stdout and nothing is printed to stderr.
8257 Additional arguments are always ignored.
8259 Since for each cipher there is a command of the same name,
8260 the 'no-cipher' compilation switches can be tested this way.
8262 ('openssl no-XXX' is not able to detect pseudo-commands such
8263 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8266 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8269 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8270 is set; it will be thrown away anyway because each handshake creates
8272 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8273 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8274 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8275 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8278 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8279 'Q' and 'R' lose their special meanings (quit/renegotiate).
8280 This is part of what -quiet does; unlike -quiet, -ign_eof
8281 does not suppress any output.
8284 *) Add compatibility options to the purpose and trust code. The
8285 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8286 accepts a certificate or CA, this was the previous behaviour,
8287 with all the associated security issues.
8289 X509_TRUST_COMPAT is the old trust behaviour: only and
8290 automatically trust self signed roots in certificate store. A
8291 new trust setting X509_TRUST_DEFAULT is used to specify that
8292 a purpose has no associated trust setting and it should instead
8293 use the value in the default purpose.
8296 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8297 and fix a memory leak.
8300 *) In util/mkerr.pl (which implements 'make errors'), preserve
8301 reason strings from the previous version of the .c file, as
8302 the default to have only downcase letters (and digits) in
8303 automatically generated reasons codes is not always appropriate.
8306 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8307 using strerror. Previously, ERR_reason_error_string() returned
8308 library names as reason strings for SYSerr; but SYSerr is a special
8309 case where small numbers are errno values, not library numbers.
8312 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8313 converts DSA parameters into DH parameters. (When creating parameters,
8314 DSA_generate_parameters is used.)
8317 *) Include 'length' (recommended exponent length) in C code generated
8318 by 'openssl dhparam -C'.
8321 *) The second argument to set_label in perlasm was already being used
8322 so couldn't be used as a "file scope" flag. Moved to third argument
8326 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8327 instead of RAND_bytes for encryption IVs and salts.
8330 *) Include RAND_status() into RAND_METHOD instead of implementing
8331 it only for md_rand.c Otherwise replacing the PRNG by calling
8332 RAND_set_rand_method would be impossible.
8335 *) Don't let DSA_generate_key() enter an infinite loop if the random
8336 number generation fails.
8339 *) New 'rand' application for creating pseudo-random output.
8342 *) Added configuration support for Linux/IA64
8343 [Rolf Haberrecker <rolf@suse.de>]
8345 *) Assembler module support for Mingw32.
8348 *) Shared library support for HPUX (in shlib/).
8349 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8351 *) Shared library support for Solaris gcc.
8352 [Lutz Behnke <behnke@trustcenter.de>]
8354 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8356 *) PKCS7_encrypt() was adding text MIME headers twice because they
8357 were added manually and by SMIME_crlf_copy().
8360 *) In bntest.c don't call BN_rand with zero bits argument.
8361 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8363 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8364 case was implemented. This caused BN_div_recp() to fail occasionally.
8367 *) Add an optional second argument to the set_label() in the perl
8368 assembly language builder. If this argument exists and is set
8369 to 1 it signals that the assembler should use a symbol whose
8370 scope is the entire file, not just the current function. This
8371 is needed with MASM which uses the format label:: for this scope.
8372 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8374 *) Change the ASN1 types so they are typedefs by default. Before
8375 almost all types were #define'd to ASN1_STRING which was causing
8376 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8380 *) Change names of new functions to the new get1/get0 naming
8381 convention: After 'get1', the caller owns a reference count
8382 and has to call ..._free; 'get0' returns a pointer to some
8383 data structure without incrementing reference counters.
8384 (Some of the existing 'get' functions increment a reference
8385 counter, some don't.)
8386 Similarly, 'set1' and 'add1' functions increase reference
8387 counters or duplicate objects.
8390 *) Allow for the possibility of temp RSA key generation failure:
8391 the code used to assume it always worked and crashed on failure.
8394 *) Fix potential buffer overrun problem in BIO_printf().
8395 [Ulf Möller, using public domain code by Patrick Powell; problem
8396 pointed out by David Sacerdote <das33@cornell.edu>]
8398 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8399 RAND_egd() and RAND_status(). In the command line application,
8400 the EGD socket can be specified like a seed file using RANDFILE
8404 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8405 Some CAs (e.g. Verisign) distribute certificates in this form.
8408 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8409 list to exclude them. This means that no special compilation option
8410 is needed to use anonymous DH: it just needs to be included in the
8414 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8415 EVP_MD_type. The old functionality is available in a new macro called
8416 EVP_MD_md(). Change code that uses it and update docs.
8419 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8420 where the 'void *' argument is replaced by a function pointer argument.
8421 Previously 'void *' was abused to point to functions, which works on
8422 many platforms, but is not correct. As these functions are usually
8423 called by macros defined in OpenSSL header files, most source code
8424 should work without changes.
8427 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8428 sections with information on -D... compiler switches used for
8429 compiling the library so that applications can see them. To enable
8430 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8431 must be defined. E.g.,
8432 #define OPENSSL_ALGORITHM_DEFINES
8433 #include <openssl/opensslconf.h>
8434 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8435 [Richard Levitte, Ulf and Bodo Möller]
8437 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8441 *) Change the 'other' type in certificate aux info to a STACK_OF
8442 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8443 the required ASN1 format: arbitrary types determined by an OID.
8446 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8447 argument to 'req'. This is not because the function is newer or
8448 better than others it just uses the work 'NEW' in the certificate
8449 request header lines. Some software needs this.
8452 *) Reorganise password command line arguments: now passwords can be
8453 obtained from various sources. Delete the PEM_cb function and make
8454 it the default behaviour: i.e. if the callback is NULL and the
8455 usrdata argument is not NULL interpret it as a null terminated pass
8456 phrase. If usrdata and the callback are NULL then the pass phrase
8457 is prompted for as usual.
8460 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8461 the support is automatically enabled. The resulting binaries will
8462 autodetect the card and use it if present.
8463 [Ben Laurie and Compaq Inc.]
8465 *) Work around for Netscape hang bug. This sends certificate request
8466 and server done in one record. Since this is perfectly legal in the
8467 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8468 the bugs/SSLv3 entry for more info.
8471 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8474 *) Add -rand argument to smime and pkcs12 applications and read/write
8478 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8481 *) Add command line password options to the remaining applications.
8484 *) Bug fix for BN_div_recp() for numerators with an even number of
8488 *) More tests in bntest.c, and changed test_bn output.
8491 *) ./config recognizes MacOS X now.
8494 *) Bug fix for BN_div() when the first words of num and divsor are
8495 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8498 *) Add support for various broken PKCS#8 formats, and command line
8499 options to produce them.
8502 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8503 get temporary BIGNUMs from a BN_CTX.
8506 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8510 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8511 include a #define from the old name to the new. The original intent
8512 was that statically linked binaries could for example just call
8513 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8514 link with digests. This never worked because SSLeay_add_all_digests()
8515 and SSLeay_add_all_ciphers() were in the same source file so calling
8516 one would link with the other. They are now in separate source files.
8519 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8522 *) Use a less unusual form of the Miller-Rabin primality test (it used
8523 a binary algorithm for exponentiation integrated into the Miller-Rabin
8524 loop, our standard modexp algorithms are faster).
8527 *) Support for the EBCDIC character set completed.
8528 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8530 *) Source code cleanups: use const where appropriate, eliminate casts,
8531 use void * instead of char * in lhash.
8534 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8535 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8536 this the server could overwrite ephemeral keys that the client
8540 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8541 using 50 iterations of the Rabin-Miller test.
8543 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8544 iterations of the Rabin-Miller test as required by the appendix
8545 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8546 As BN_is_prime_fasttest includes trial division, DSA parameter
8547 generation becomes much faster.
8549 This implies a change for the callback functions in DSA_is_prime
8550 and DSA_generate_parameters: The callback function is called once
8551 for each positive witness in the Rabin-Miller test, not just
8552 occasionally in the inner loop; and the parameters to the
8553 callback function now provide an iteration count for the outer
8554 loop rather than for the current invocation of the inner loop.
8555 DSA_generate_parameters additionally can call the callback
8556 function with an 'iteration count' of -1, meaning that a
8557 candidate has passed the trial division test (when q is generated
8558 from an application-provided seed, trial division is skipped).
8561 *) New function BN_is_prime_fasttest that optionally does trial
8562 division before starting the Rabin-Miller test and has
8563 an additional BN_CTX * argument (whereas BN_is_prime always
8564 has to allocate at least one BN_CTX).
8565 'callback(1, -1, cb_arg)' is called when a number has passed the
8566 trial division stage.
8569 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8573 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8576 *) New function BN_pseudo_rand().
8579 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8580 bignum version of BN_from_montgomery() with the working code from
8581 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8585 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8586 made it impossible to use the same SSL_SESSION data structure in
8587 SSL2 clients in multiple threads.
8590 *) The return value of RAND_load_file() no longer counts bytes obtained
8591 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8592 to seed the PRNG (previously an explicit byte count was required).
8593 [Ulf Möller, Bodo Möller]
8595 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8596 used (char *) instead of (void *) and had casts all over the place.
8599 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8602 *) Retain source code compatibility for BN_prime_checks macro:
8603 BN_is_prime(..., BN_prime_checks, ...) now uses
8604 BN_prime_checks_for_size to determine the appropriate number of
8605 Rabin-Miller iterations.
8608 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8609 DH_CHECK_P_NOT_SAFE_PRIME.
8610 (Check if this is true? OpenPGP calls them "strong".)
8613 *) Merge the functionality of "dh" and "gendh" programs into a new program
8614 "dhparam". The old programs are retained for now but will handle DH keys
8615 (instead of parameters) in future.
8618 *) Make the ciphers, s_server and s_client programs check the return values
8619 when a new cipher list is set.
8622 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8623 ciphers. Before when the 56bit ciphers were enabled the sorting was
8626 The syntax for the cipher sorting has been extended to support sorting by
8627 cipher-strength (using the strength_bits hard coded in the tables).
8628 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8630 Fix a bug in the cipher-command parser: when supplying a cipher command
8631 string with an "undefined" symbol (neither command nor alphanumeric
8632 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8633 an error is flagged.
8635 Due to the strength-sorting extension, the code of the
8636 ssl_create_cipher_list() function was completely rearranged. I hope that
8637 the readability was also increased :-)
8638 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8640 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8641 for the first serial number and places 2 in the serial number file. This
8642 avoids problems when the root CA is created with serial number zero and
8643 the first user certificate has the same issuer name and serial number
8647 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8648 the new code. Add documentation for this stuff.
8651 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8652 X509_*() to X509at_*() on the grounds that they don't handle X509
8653 structures and behave in an analogous way to the X509v3 functions:
8654 they shouldn't be called directly but wrapper functions should be used
8657 So we also now have some wrapper functions that call the X509at functions
8658 when passed certificate requests. (TO DO: similar things can be done with
8659 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8660 things. Some of these need some d2i or i2d and print functionality
8661 because they handle more complex structures.)
8664 *) Add missing #ifndefs that caused missing symbols when building libssl
8665 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8666 NO_RSA in ssl/s2*.c.
8667 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8669 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8670 has a return value which indicates the quality of the random data
8671 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8672 error queue. New function RAND_pseudo_bytes() generates output that is
8673 guaranteed to be unique but not unpredictable. RAND_add is like
8674 RAND_seed, but takes an extra argument for an entropy estimate
8675 (RAND_seed always assumes full entropy).
8678 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8679 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8680 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8681 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8682 false-positive rate of at most 2^-80 for random input.
8685 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8688 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8689 in the 0.9.5 release), this returns the chain
8690 from an X509_CTX structure with a dup of the stack and all
8691 the X509 reference counts upped: so the stack will exist
8692 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8695 Also make SSL_SESSION_print() print out the verify return
8699 *) Add manpage for the pkcs12 command. Also change the default
8700 behaviour so MAC iteration counts are used unless the new
8701 -nomaciter option is used. This improves file security and
8702 only older versions of MSIE (4.0 for example) need it.
8705 *) Honor the no-xxx Configure options when creating .DEF files.
8708 *) Add PKCS#10 attributes to field table: challengePassword,
8709 unstructuredName and unstructuredAddress. These are taken from
8710 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8711 international characters are used.
8713 More changes to X509_ATTRIBUTE code: allow the setting of types
8714 based on strings. Remove the 'loc' parameter when adding
8715 attributes because these will be a SET OF encoding which is sorted
8719 *) Initial changes to the 'req' utility to allow request generation
8720 automation. This will allow an application to just generate a template
8721 file containing all the field values and have req construct the
8724 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8725 used all over the place including certificate requests and PKCS#7
8726 structures. They are currently handled manually where necessary with
8727 some primitive wrappers for PKCS#7. The new functions behave in a
8728 manner analogous to the X509 extension functions: they allow
8729 attributes to be looked up by NID and added.
8731 Later something similar to the X509V3 code would be desirable to
8732 automatically handle the encoding, decoding and printing of the
8733 more complex types. The string types like challengePassword can
8734 be handled by the string table functions.
8736 Also modified the multi byte string table handling. Now there is
8737 a 'global mask' which masks out certain types. The table itself
8738 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8739 is useful when for example there is only one permissible type
8740 (as in countryName) and using the mask might result in no valid
8744 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8745 SSL_get_peer_finished to allow applications to obtain the latest
8746 Finished messages sent to the peer or expected from the peer,
8747 respectively. (SSL_get_peer_finished is usually the Finished message
8748 actually received from the peer, otherwise the protocol will be aborted.)
8750 As the Finished message are message digests of the complete handshake
8751 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8752 be used for external authentication procedures when the authentication
8753 provided by SSL/TLS is not desired or is not enough.
8756 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8757 the host supports BWX extension and if Compaq C is present on the
8758 $PATH. Just exploiting of the BWX extension results in 20-30%
8759 performance kick for some algorithms, e.g. DES and RC4 to mention
8760 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8764 *) Add support for MS "fast SGC". This is arguably a violation of the
8765 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8766 weak crypto and after checking the certificate is SGC a second one
8767 with strong crypto. MS SGC stops the first handshake after receiving
8768 the server certificate message and sends a second client hello. Since
8769 a server will typically do all the time consuming operations before
8770 expecting any further messages from the client (server key exchange
8771 is the most expensive) there is little difference between the two.
8773 To get OpenSSL to support MS SGC we have to permit a second client
8774 hello message after we have sent server done. In addition we have to
8775 reset the MAC if we do get this second client hello.
8778 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8779 if a DER encoded private key is RSA or DSA traditional format. Changed
8780 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8781 format DER encoded private key. Newer code should use PKCS#8 format which
8782 has the key type encoded in the ASN1 structure. Added DER private key
8783 support to pkcs8 application.
8786 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8787 ciphersuites has been selected (as required by the SSL 3/TLS 1
8788 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8789 is set, we interpret this as a request to violate the specification
8790 (the worst that can happen is a handshake failure, and 'correct'
8791 behaviour would result in a handshake failure anyway).
8794 *) In SSL_CTX_add_session, take into account that there might be multiple
8795 SSL_SESSION structures with the same session ID (e.g. when two threads
8796 concurrently obtain them from an external cache).
8797 The internal cache can handle only one SSL_SESSION with a given ID,
8798 so if there's a conflict, we now throw out the old one to achieve
8802 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8803 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8804 some routines that use cipher OIDs: some ciphers do not have OIDs
8805 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8809 *) Simplify the trust setting structure and code. Now we just have
8810 two sequences of OIDs for trusted and rejected settings. These will
8811 typically have values the same as the extended key usage extension
8812 and any application specific purposes.
8814 The trust checking code now has a default behaviour: it will just
8815 check for an object with the same NID as the passed id. Functions can
8816 be provided to override either the default behaviour or the behaviour
8817 for a given id. SSL client, server and email already have functions
8818 in place for compatibility: they check the NID and also return "trusted"
8819 if the certificate is self signed.
8822 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8823 traditional format into an EVP_PKEY structure.
8826 *) Add a password callback function PEM_cb() which either prompts for
8827 a password if usr_data is NULL or otherwise assumes it is a null
8828 terminated password. Allow passwords to be passed on command line
8829 environment or config files in a few more utilities.
8832 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8833 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8834 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8835 Update documentation.
8838 *) Support for ASN1 "NULL" type. This could be handled before by using
8839 ASN1_TYPE but there wasn't any function that would try to read a NULL
8840 and produce an error if it couldn't. For compatibility we also have
8841 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8842 don't allocate anything because they don't need to.
8845 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8847 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8849 *) Rebuild of the memory allocation routines used by OpenSSL code and
8850 possibly others as well. The purpose is to make an interface that
8851 provide hooks so anyone can build a separate set of allocation and
8852 deallocation routines to be used by OpenSSL, for example memory
8853 pool implementations, or something else, which was previously hard
8854 since Malloc(), Realloc() and Free() were defined as macros having
8855 the values malloc, realloc and free, respectively (except for Win32
8856 compilations). The same is provided for memory debugging code.
8857 OpenSSL already comes with functionality to find memory leaks, but
8858 this gives people a chance to debug other memory problems.
8860 With these changes, a new set of functions and macros have appeared:
8862 CRYPTO_set_mem_debug_functions() [F]
8863 CRYPTO_get_mem_debug_functions() [F]
8864 CRYPTO_dbg_set_options() [F]
8865 CRYPTO_dbg_get_options() [F]
8866 CRYPTO_malloc_debug_init() [M]
8868 The memory debug functions are NULL by default, unless the library
8869 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8870 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8871 gives the standard debugging functions that come with OpenSSL) or
8872 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8873 provided by the library user) must be used. When the standard
8874 debugging functions are used, CRYPTO_dbg_set_options can be used to
8875 request additional information:
8876 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8877 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8879 Also, things like CRYPTO_set_mem_functions will always give the
8880 expected result (the new set of functions is used for allocation
8881 and deallocation) at all times, regardless of platform and compiler
8884 To finish it up, some functions that were never use in any other
8885 way than through macros have a new API and new semantic:
8888 CRYPTO_dbg_realloc()
8891 All macros of value have retained their old syntax.
8892 [Richard Levitte and Bodo Moeller]
8894 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8895 ordering of SMIMECapabilities wasn't in "strength order" and there
8896 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8900 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8901 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8902 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8904 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8905 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8906 functionality to handle multipart/signed properly) and a utility
8907 called 'smime' to call all this stuff. This is based on code I
8908 originally wrote for Celo who have kindly allowed it to be
8909 included in OpenSSL.
8912 *) Add variants des_set_key_checked and des_set_key_unchecked of
8913 des_set_key (aka des_key_sched). Global variable des_check_key
8914 decides which of these is called by des_set_key; this way
8915 des_check_key behaves as it always did, but applications and
8916 the library itself, which was buggy for des_check_key == 1,
8917 have a cleaner way to pick the version they need.
8920 *) New function PKCS12_newpass() which changes the password of a
8924 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8925 dynamic mix. In both cases the ids can be used as an index into the
8926 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8927 functions so they accept a list of the field values and the
8928 application doesn't need to directly manipulate the X509_TRUST
8932 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8936 *) Modify the way the V3 extension code looks up extensions. This now
8937 works in a similar way to the object code: we have some "standard"
8938 extensions in a static table which is searched with OBJ_bsearch()
8939 and the application can add dynamic ones if needed. The file
8940 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8941 updated whenever a new extension is added to the core code and kept
8942 in ext_nid order. There is a simple program 'tabtest.c' which checks
8943 this. New extensions are not added too often so this file can readily
8944 be maintained manually.
8946 There are two big advantages in doing things this way. The extensions
8947 can be looked up immediately and no longer need to be "added" using
8948 X509V3_add_standard_extensions(): this function now does nothing.
8949 [Side note: I get *lots* of email saying the extension code doesn't
8950 work because people forget to call this function]
8951 Also no dynamic allocation is done unless new extensions are added:
8952 so if we don't add custom extensions there is no need to call
8953 X509V3_EXT_cleanup().
8956 *) Modify enc utility's salting as follows: make salting the default. Add a
8957 magic header, so unsalted files fail gracefully instead of just decrypting
8958 to garbage. This is because not salting is a big security hole, so people
8959 should be discouraged from doing it.
8962 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8963 digest to be passed on the command line but it only used this
8964 parameter when signing a certificate. Modified so all relevant
8965 operations are affected by the digest parameter including the
8966 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8967 DSA key was used because it didn't fix the digest.
8970 *) Initial certificate chain verify code. Currently tests the untrusted
8971 certificates for consistency with the verify purpose (which is set
8972 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8974 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8975 this is because it will reject chains with invalid extensions whereas
8976 every previous version of OpenSSL and SSLeay made no checks at all.
8978 Trust code: checks the root CA for the relevant trust settings. Trust
8979 settings have an initial value consistent with the verify purpose: e.g.
8980 if the verify purpose is for SSL client use it expects the CA to be
8981 trusted for SSL client use. However the default value can be changed to
8982 permit custom trust settings: one example of this would be to only trust
8983 certificates from a specific "secure" set of CAs.
8985 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8986 which should be used for version portability: especially since the
8987 verify structure is likely to change more often now.
8989 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8990 to set them. If not set then assume SSL clients will verify SSL servers
8993 Two new options to the verify program: -untrusted allows a set of
8994 untrusted certificates to be passed in and -purpose which sets the
8995 intended purpose of the certificate. If a purpose is set then the
8996 new chain verify code is used to check extension consistency.
8999 *) Support for the authority information access extension.
9002 *) Modify RSA and DSA PEM read routines to transparently handle
9003 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9004 public keys in a format compatible with certificate
9005 SubjectPublicKeyInfo structures. Unfortunately there were already
9006 functions called *_PublicKey_* which used various odd formats so
9007 these are retained for compatibility: however the DSA variants were
9008 never in a public release so they have been deleted. Changed dsa/rsa
9009 utilities to handle the new format: note no releases ever handled public
9010 keys so we should be OK.
9012 The primary motivation for this change is to avoid the same fiasco
9013 that dogs private keys: there are several incompatible private key
9014 formats some of which are standard and some OpenSSL specific and
9015 require various evil hacks to allow partial transparent handling and
9016 even then it doesn't work with DER formats. Given the option anything
9017 other than PKCS#8 should be dumped: but the other formats have to
9018 stay in the name of compatibility.
9020 With public keys and the benefit of hindsight one standard format
9021 is used which works with EVP_PKEY, RSA or DSA structures: though
9022 it clearly returns an error if you try to read the wrong kind of key.
9024 Added a -pubkey option to the 'x509' utility to output the public key.
9025 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9026 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9027 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9028 that do the same as the EVP_PKEY_assign_*() except they up the
9029 reference count of the added key (they don't "swallow" the
9033 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9034 CRLs would fail if the file contained no certificates or no CRLs:
9035 added a new function to read in both types and return the number
9036 read: this means that if none are read it will be an error. The
9037 DER versions of the certificate and CRL reader would always fail
9038 because it isn't possible to mix certificates and CRLs in DER format
9039 without choking one or the other routine. Changed this to just read
9040 a certificate: this is the best we can do. Also modified the code
9041 in apps/verify.c to take notice of return codes: it was previously
9042 attempting to read in certificates from NULL pointers and ignoring
9043 any errors: this is one reason why the cert and CRL reader seemed
9044 to work. It doesn't check return codes from the default certificate
9045 routines: these may well fail if the certificates aren't installed.
9048 *) Code to support otherName option in GeneralName.
9051 *) First update to verify code. Change the verify utility
9052 so it warns if it is passed a self signed certificate:
9053 for consistency with the normal behaviour. X509_verify
9054 has been modified to it will now verify a self signed
9055 certificate if *exactly* the same certificate appears
9056 in the store: it was previously impossible to trust a
9057 single self signed certificate. This means that:
9058 openssl verify ss.pem
9059 now gives a warning about a self signed certificate but
9060 openssl verify -CAfile ss.pem ss.pem
9064 *) For servers, store verify_result in SSL_SESSION data structure
9065 (and add it to external session representation).
9066 This is needed when client certificate verifications fails,
9067 but an application-provided verification callback (set by
9068 SSL_CTX_set_cert_verify_callback) allows accepting the session
9069 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9070 but returns 1): When the session is reused, we have to set
9071 ssl->verify_result to the appropriate error code to avoid
9073 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9075 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9076 case in PKCS7_dataInit() where the signed PKCS7 structure
9077 didn't contain any existing data because it was being created.
9078 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9080 *) Add a salt to the key derivation routines in enc.c. This
9081 forms the first 8 bytes of the encrypted file. Also add a
9082 -S option to allow a salt to be input on the command line.
9085 *) New function X509_cmp(). Oddly enough there wasn't a function
9086 to compare two certificates. We do this by working out the SHA1
9087 hash and comparing that. X509_cmp() will be needed by the trust
9091 *) SSL_get1_session() is like SSL_get_session(), but increments
9092 the reference count in the SSL_SESSION returned.
9093 [Geoff Thorpe <geoff@eu.c2.net>]
9095 *) Fix for 'req': it was adding a null to request attributes.
9096 Also change the X509_LOOKUP and X509_INFO code to handle
9097 certificate auxiliary information.
9100 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9104 *) Add the possibility to add extra information to the memory leak
9105 detecting output, to form tracebacks, showing from where each
9106 allocation was originated: CRYPTO_push_info("constant string") adds
9107 the string plus current file name and line number to a per-thread
9108 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9109 is like calling CYRPTO_pop_info() until the stack is empty.
9110 Also updated memory leak detection code to be multi-thread-safe.
9113 *) Add options -text and -noout to pkcs7 utility and delete the
9114 encryption options which never did anything. Update docs.
9117 *) Add options to some of the utilities to allow the pass phrase
9118 to be included on either the command line (not recommended on
9119 OSes like Unix) or read from the environment. Update the
9120 manpages and fix a few bugs.
9123 *) Add a few manpages for some of the openssl commands.
9126 *) Fix the -revoke option in ca. It was freeing up memory twice,
9127 leaking and not finding already revoked certificates.
9130 *) Extensive changes to support certificate auxiliary information.
9131 This involves the use of X509_CERT_AUX structure and X509_AUX
9132 functions. An X509_AUX function such as PEM_read_X509_AUX()
9133 can still read in a certificate file in the usual way but it
9134 will also read in any additional "auxiliary information". By
9135 doing things this way a fair degree of compatibility can be
9136 retained: existing certificates can have this information added
9137 using the new 'x509' options.
9139 Current auxiliary information includes an "alias" and some trust
9140 settings. The trust settings will ultimately be used in enhanced
9141 certificate chain verification routines: currently a certificate
9142 can only be trusted if it is self signed and then it is trusted
9146 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9147 The problem was that one of the replacement routines had not been working
9148 since SSLeay releases. For now the offending routine has been replaced
9149 with non-optimised assembler. Even so, this now gives around 95%
9150 performance improvement for 1024 bit RSA signs.
9153 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9154 handling. Most clients have the effective key size in bits equal to
9155 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9156 A few however don't do this and instead use the size of the decrypted key
9157 to determine the RC2 key length and the AlgorithmIdentifier to determine
9158 the effective key length. In this case the effective key length can still
9159 be 40 bits but the key length can be 168 bits for example. This is fixed
9160 by manually forcing an RC2 key into the EVP_PKEY structure because the
9161 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9162 the key length and effective key length are equal.
9165 *) Add a bunch of functions that should simplify the creation of
9166 X509_NAME structures. Now you should be able to do:
9167 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9168 and have it automatically work out the correct field type and fill in
9169 the structures. The more adventurous can try:
9170 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9171 and it will (hopefully) work out the correct multibyte encoding.
9174 *) Change the 'req' utility to use the new field handling and multibyte
9175 copy routines. Before the DN field creation was handled in an ad hoc
9176 way in req, ca, and x509 which was rather broken and didn't support
9177 BMPStrings or UTF8Strings. Since some software doesn't implement
9178 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9179 using the dirstring_type option. See the new comment in the default
9180 openssl.cnf for more info.
9183 *) Make crypto/rand/md_rand.c more robust:
9184 - Assure unique random numbers after fork().
9185 - Make sure that concurrent threads access the global counter and
9186 md serializably so that we never lose entropy in them
9187 or use exactly the same state in multiple threads.
9188 Access to the large state is not always serializable because
9189 the additional locking could be a performance killer, and
9190 md should be large enough anyway.
9193 *) New file apps/app_rand.c with commonly needed functionality
9194 for handling the random seed file.
9196 Use the random seed file in some applications that previously did not:
9198 dsaparam -genkey (which also ignored its '-rand' option),
9201 x509 (when signing).
9202 Except on systems with /dev/urandom, it is crucial to have a random
9203 seed file at least for key creation, DSA signing, and for DH exchanges;
9204 for RSA signatures we could do without one.
9206 gendh and gendsa (unlike genrsa) used to read only the first byte
9207 of each file listed in the '-rand' option. The function as previously
9208 found in genrsa is now in app_rand.c and is used by all programs
9209 that support '-rand'.
9212 *) In RAND_write_file, use mode 0600 for creating files;
9213 don't just chmod when it may be too late.
9216 *) Report an error from X509_STORE_load_locations
9217 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9220 *) New function ASN1_mbstring_copy() this copies a string in either
9221 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9222 into an ASN1_STRING type. A mask of permissible types is passed
9223 and it chooses the "minimal" type to use or an error if not type
9227 *) Add function equivalents to the various macros in asn1.h. The old
9228 macros are retained with an M_ prefix. Code inside the library can
9229 use the M_ macros. External code (including the openssl utility)
9230 should *NOT* in order to be "shared library friendly".
9233 *) Add various functions that can check a certificate's extensions
9234 to see if it usable for various purposes such as SSL client,
9235 server or S/MIME and CAs of these types. This is currently
9236 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9237 verification. Also added a -purpose flag to x509 utility to
9238 print out all the purposes.
9241 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9245 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9246 for, obtain and decode and extension and obtain its critical flag.
9247 This allows all the necessary extension code to be handled in a
9248 single function call.
9251 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9252 platforms. See crypto/rc4/rc4_enc.c for further details.
9255 *) New -noout option to asn1parse. This causes no output to be produced
9256 its main use is when combined with -strparse and -out to extract data
9257 from a file (which may not be in ASN.1 format).
9260 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9261 when producing the local key id.
9262 [Richard Levitte <levitte@stacken.kth.se>]
9264 *) New option -dhparam in s_server. This allows a DH parameter file to be
9265 stated explicitly. If it is not stated then it tries the first server
9266 certificate file. The previous behaviour hard coded the filename
9270 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9271 a public key to be input or output. For example:
9272 openssl rsa -in key.pem -pubout -out pubkey.pem
9273 Also added necessary DSA public key functions to handle this.
9276 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9277 in the message. This was handled by allowing
9278 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9279 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9281 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9282 to the end of the strings whereas this didn't. This would cause problems
9283 if strings read with d2i_ASN1_bytes() were later modified.
9284 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9286 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9287 data and it contains EOF it will end up returning an error. This is
9288 caused by input 46 bytes long. The cause is due to the way base64
9289 BIOs find the start of base64 encoded data. They do this by trying a
9290 trial decode on each line until they find one that works. When they
9291 do a flag is set and it starts again knowing it can pass all the
9292 data directly through the decoder. Unfortunately it doesn't reset
9293 the context it uses. This means that if EOF is reached an attempt
9294 is made to pass two EOFs through the context and this causes the
9295 resulting error. This can also cause other problems as well. As is
9296 usual with these problems it takes *ages* to find and the fix is
9297 trivial: move one line.
9298 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9300 *) Ugly workaround to get s_client and s_server working under Windows. The
9301 old code wouldn't work because it needed to select() on sockets and the
9302 tty (for keypresses and to see if data could be written). Win32 only
9303 supports select() on sockets so we select() with a 1s timeout on the
9304 sockets and then see if any characters are waiting to be read, if none
9305 are present then we retry, we also assume we can always write data to
9306 the tty. This isn't nice because the code then blocks until we've
9307 received a complete line of data and it is effectively polling the
9308 keyboard at 1s intervals: however it's quite a bit better than not
9309 working at all :-) A dedicated Windows application might handle this
9310 with an event loop for example.
9313 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9314 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9315 will be called when RSA_sign() and RSA_verify() are used. This is useful
9316 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9317 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9318 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9319 This necessitated the support of an extra signature type NID_md5_sha1
9320 for SSL signatures and modifications to the SSL library to use it instead
9321 of calling RSA_public_decrypt() and RSA_private_encrypt().
9324 *) Add new -verify -CAfile and -CApath options to the crl program, these
9325 will lookup a CRL issuers certificate and verify the signature in a
9326 similar way to the verify program. Tidy up the crl program so it
9327 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9328 less strict. It will now permit CRL extensions even if it is not
9329 a V2 CRL: this will allow it to tolerate some broken CRLs.
9332 *) Initialize all non-automatic variables each time one of the openssl
9333 sub-programs is started (this is necessary as they may be started
9334 multiple times from the "OpenSSL>" prompt).
9335 [Lennart Bang, Bodo Moeller]
9337 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9338 removing all other RSA functionality (this is what NO_RSA does). This
9339 is so (for example) those in the US can disable those operations covered
9340 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9344 *) Non-copying interface to BIO pairs.
9345 (still largely untested)
9348 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9349 ASCII string. This was handled independently in various places before.
9352 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9353 UTF8 strings a character at a time.
9356 *) Use client_version from client hello to select the protocol
9357 (s23_srvr.c) and for RSA client key exchange verification
9358 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9361 *) Add various utility functions to handle SPKACs, these were previously
9362 handled by poking round in the structure internals. Added new function
9363 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9364 print, verify and generate SPKACs. Based on an original idea from
9365 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9368 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9371 *) Allow the config file extension section to be overwritten on the
9372 command line. Based on an original idea from Massimiliano Pala
9373 <madwolf@comune.modena.it>. The new option is called -extensions
9374 and can be applied to ca, req and x509. Also -reqexts to override
9375 the request extensions in req and -crlexts to override the crl extensions
9379 *) Add new feature to the SPKAC handling in ca. Now you can include
9380 the same field multiple times by preceding it by "XXXX." for example:
9383 this is the same syntax as used in the req config file.
9386 *) Allow certificate extensions to be added to certificate requests. These
9387 are specified in a 'req_extensions' option of the req section of the
9388 config file. They can be printed out with the -text option to req but
9389 are otherwise ignored at present.
9392 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9393 data read consists of only the final block it would not decrypted because
9394 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9395 A misplaced 'break' also meant the decrypted final block might not be
9396 copied until the next read.
9399 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9400 a few extra parameters to the DH structure: these will be useful if
9401 for example we want the value of 'q' or implement X9.42 DH.
9404 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9405 provides hooks that allow the default DSA functions or functions on a
9406 "per key" basis to be replaced. This allows hardware acceleration and
9407 hardware key storage to be handled without major modification to the
9408 library. Also added low level modexp hooks and CRYPTO_EX structure and
9409 associated functions.
9412 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9413 as "read only": it can't be written to and the buffer it points to will
9414 not be freed. Reading from a read only BIO is much more efficient than
9415 a normal memory BIO. This was added because there are several times when
9416 an area of memory needs to be read from a BIO. The previous method was
9417 to create a memory BIO and write the data to it, this results in two
9418 copies of the data and an O(n^2) reading algorithm. There is a new
9419 function BIO_new_mem_buf() which creates a read only memory BIO from
9420 an area of memory. Also modified the PKCS#7 routines to use read only
9424 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9425 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9426 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9427 but a retry condition occured while trying to read the rest.
9430 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9431 NID_pkcs7_encrypted by default: this was wrong since this should almost
9432 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9433 the encrypted data type: this is a more sensible place to put it and it
9434 allows the PKCS#12 code to be tidied up that duplicated this
9438 *) Changed obj_dat.pl script so it takes its input and output files on
9439 the command line. This should avoid shell escape redirection problems
9443 *) Initial support for certificate extension requests, these are included
9444 in things like Xenroll certificate requests. Included functions to allow
9445 extensions to be obtained and added.
9448 *) -crlf option to s_client and s_server for sending newlines as
9449 CRLF (as required by many protocols).
9452 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9454 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9455 [Ralf S. Engelschall]
9457 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9458 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9460 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9464 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9465 DH parameters/keys (q is lost during that conversion, but the resulting
9466 DH parameters contain its length).
9468 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9469 much faster than DH_generate_parameters (which creates parameters
9470 where p = 2*q + 1), and also the smaller q makes DH computations
9471 much more efficient (160-bit exponentiation instead of 1024-bit
9472 exponentiation); so this provides a convenient way to support DHE
9473 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9474 utter importance to use
9475 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9477 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9478 when such DH parameters are used, because otherwise small subgroup
9479 attacks may become possible!
9482 *) Avoid memory leak in i2d_DHparams.
9485 *) Allow the -k option to be used more than once in the enc program:
9486 this allows the same encrypted message to be read by multiple recipients.
9489 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9490 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9491 it will always use the numerical form of the OID, even if it has a short
9495 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9496 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9497 otherwise bn_mod_exp was called. In the case of hardware keys for example
9498 no private key components need be present and it might store extra data
9499 in the RSA structure, which cannot be accessed from bn_mod_exp.
9500 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9501 private key operations.
9504 *) Added support for SPARC Linux.
9507 *) pem_password_cb function type incompatibly changed from
9508 typedef int pem_password_cb(char *buf, int size, int rwflag);
9510 ....(char *buf, int size, int rwflag, void *userdata);
9511 so that applications can pass data to their callbacks:
9512 The PEM[_ASN1]_{read,write}... functions and macros now take an
9513 additional void * argument, which is just handed through whenever
9514 the password callback is called.
9515 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9517 New function SSL_CTX_set_default_passwd_cb_userdata.
9519 Compatibility note: As many C implementations push function arguments
9520 onto the stack in reverse order, the new library version is likely to
9521 interoperate with programs that have been compiled with the old
9522 pem_password_cb definition (PEM_whatever takes some data that
9523 happens to be on the stack as its last argument, and the callback
9524 just ignores this garbage); but there is no guarantee whatsoever that
9527 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9528 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9529 problems not only on Windows, but also on some Unix platforms.
9530 To avoid problematic command lines, these definitions are now in an
9531 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9532 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9535 *) MIPS III/IV assembler module is reimplemented.
9538 *) More DES library cleanups: remove references to srand/rand and
9539 delete an unused file.
9542 *) Add support for the the free Netwide assembler (NASM) under Win32,
9543 since not many people have MASM (ml) and it can be hard to obtain.
9544 This is currently experimental but it seems to work OK and pass all
9545 the tests. Check out INSTALL.W32 for info.
9548 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9549 without temporary keys kept an extra copy of the server key,
9550 and connections with temporary keys did not free everything in case
9554 *) New function RSA_check_key and new openssl rsa option -check
9555 for verifying the consistency of RSA keys.
9556 [Ulf Moeller, Bodo Moeller]
9558 *) Various changes to make Win32 compile work:
9559 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9560 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9561 comparison" warnings.
9562 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9565 *) Add a debugging option to PKCS#5 v2 key generation function: when
9566 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9567 derived keys are printed to stderr.
9570 *) Copy the flags in ASN1_STRING_dup().
9571 [Roman E. Pavlov <pre@mo.msk.ru>]
9573 *) The x509 application mishandled signing requests containing DSA
9574 keys when the signing key was also DSA and the parameters didn't match.
9576 It was supposed to omit the parameters when they matched the signing key:
9577 the verifying software was then supposed to automatically use the CA's
9578 parameters if they were absent from the end user certificate.
9580 Omitting parameters is no longer recommended. The test was also
9581 the wrong way round! This was probably due to unusual behaviour in
9582 EVP_cmp_parameters() which returns 1 if the parameters match.
9583 This meant that parameters were omitted when they *didn't* match and
9584 the certificate was useless. Certificates signed with 'ca' didn't have
9586 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9588 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9589 The interface is as follows:
9590 Applications can use
9591 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9592 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9593 "off" is now the default.
9594 The library internally uses
9595 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9596 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9597 to disable memory-checking temporarily.
9599 Some inconsistent states that previously were possible (and were
9600 even the default) are now avoided.
9602 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9603 with each memory chunk allocated; this is occasionally more helpful
9604 than just having a counter.
9606 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9608 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9612 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9613 which largely parallels "options", but is for changing API behaviour,
9614 whereas "options" are about protocol behaviour.
9615 Initial "mode" flags are:
9617 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9618 a single record has been written.
9619 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9620 retries use the same buffer location.
9621 (But all of the contents must be
9625 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9628 *) Fix problems with no-hmac etc.
9629 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9631 *) New functions RSA_get_default_method(), RSA_set_method() and
9632 RSA_get_method(). These allows replacement of RSA_METHODs without having
9633 to mess around with the internals of an RSA structure.
9636 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9637 Also really enable memory leak checks in openssl.c and in some
9639 [Chad C. Mulligan, Bodo Moeller]
9641 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9642 up the length of negative integers. This has now been simplified to just
9643 store the length when it is first determined and use it later, rather
9644 than trying to keep track of where data is copied and updating it to
9646 [Steve Henson, reported by Brien Wheeler
9647 <bwheeler@authentica-security.com>]
9649 *) Add a new function PKCS7_signatureVerify. This allows the verification
9650 of a PKCS#7 signature but with the signing certificate passed to the
9651 function itself. This contrasts with PKCS7_dataVerify which assumes the
9652 certificate is present in the PKCS#7 structure. This isn't always the
9653 case: certificates can be omitted from a PKCS#7 structure and be
9654 distributed by "out of band" means (such as a certificate database).
9657 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9658 function prototypes in pem.h, also change util/mkdef.pl to add the
9659 necessary function names.
9662 *) mk1mf.pl (used by Windows builds) did not properly read the
9663 options set by Configure in the top level Makefile, and Configure
9664 was not even able to write more than one option correctly.
9665 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9668 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9669 file to be loaded from a BIO or FILE pointer. The BIO version will
9670 for example allow memory BIOs to contain config info.
9673 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9674 Whoever hopes to achieve shared-library compatibility across versions
9675 must use this, not the compile-time macro.
9676 (Exercise 0.9.4: Which is the minimum library version required by
9678 Note: All this applies only to multi-threaded programs, others don't
9682 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9683 through a BIO pair triggered the default case, i.e.
9684 SSLerr(...,SSL_R_UNKNOWN_STATE).
9687 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9688 can use the SSL library even if none of the specific BIOs is
9692 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9693 for the encoded length.
9694 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9696 *) Add initial documentation of the X509V3 functions.
9699 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9700 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9701 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9702 secure PKCS#8 private key format with a high iteration count.
9705 *) Fix determination of Perl interpreter: A perl or perl5
9706 _directory_ in $PATH was also accepted as the interpreter.
9707 [Ralf S. Engelschall]
9709 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9710 wrong with it but it was very old and did things like calling
9711 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9715 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9716 to use the new extension code.
9719 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9720 with macros. This should make it easier to change their form, add extra
9721 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9725 *) Add to configuration table a new entry that can specify an alternative
9726 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9727 according to Mark Crispin <MRC@Panda.COM>.
9731 *) DES CBC did not update the IV. Weird.
9734 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9735 Changing the behaviour of the former might break existing programs --
9736 where IV updating is needed, des_ncbc_encrypt can be used.
9739 *) When bntest is run from "make test" it drives bc to check its
9740 calculations, as well as internally checking them. If an internal check
9741 fails, it needs to cause bc to give a non-zero result or make test carries
9742 on without noticing the failure. Fixed.
9745 *) DES library cleanups.
9748 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9749 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9750 ciphers. NOTE: although the key derivation function has been verified
9751 against some published test vectors it has not been extensively tested
9752 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9756 *) Instead of "mkdir -p", which is not fully portable, use new
9757 Perl script "util/mkdir-p.pl".
9760 *) Rewrite the way password based encryption (PBE) is handled. It used to
9761 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9762 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9763 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9764 the 'parameter' field of the AlgorithmIdentifier is passed to the
9765 underlying key generation function so it must do its own ASN1 parsing.
9766 This has also changed the EVP_PBE_CipherInit() function which now has a
9767 'parameter' argument instead of literal salt and iteration count values
9768 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9771 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9772 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9773 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9774 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9775 value was just used as a "magic string" and not used directly its
9776 value doesn't matter.
9779 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9783 *) "linux-sparc64" configuration (ultrapenguin).
9784 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9785 "linux-sparc" configuration.
9786 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9788 *) config now generates no-xxx options for missing ciphers.
9791 *) Support the EBCDIC character set (work in progress).
9792 File ebcdic.c not yet included because it has a different license.
9793 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9795 *) Support BS2000/OSD-POSIX.
9796 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9798 *) Make callbacks for key generation use void * instead of char *.
9801 *) Make S/MIME samples compile (not yet tested).
9804 *) Additional typesafe stacks.
9807 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9811 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9813 *) New configuration variant "sco5-gcc".
9815 *) Updated some demos.
9816 [Sean O Riordain, Wade Scholine]
9818 *) Add missing BIO_free at exit of pkcs12 application.
9821 *) Fix memory leak in conf.c.
9824 *) Updates for Win32 to assembler version of MD5.
9827 *) Set #! path to perl in apps/der_chop to where we found it
9828 instead of using a fixed path.
9831 *) SHA library changes for irix64-mips4-cc.
9834 *) Improvements for VMS support.
9838 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9840 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9841 This also avoids the problems with SC4.2 and unpatched SC5.
9842 [Andy Polyakov <appro@fy.chalmers.se>]
9844 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9845 These are required because of the typesafe stack would otherwise break
9846 existing code. If old code used a structure member which used to be STACK
9847 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9848 sk_num or sk_value it would produce an error because the num, data members
9849 are not present in STACK_OF. Now it just produces a warning. sk_set
9850 replaces the old method of assigning a value to sk_value
9851 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9852 that does this will no longer work (and should use sk_set instead) but
9853 this could be regarded as a "questionable" behaviour anyway.
9856 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9857 correctly handle encrypted S/MIME data.
9860 *) Change type of various DES function arguments from des_cblock
9861 (which means, in function argument declarations, pointer to char)
9862 to des_cblock * (meaning pointer to array with 8 char elements),
9863 which allows the compiler to do more typechecking; it was like
9864 that back in SSLeay, but with lots of ugly casts.
9866 Introduce new type const_des_cblock.
9869 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9870 problems: find RecipientInfo structure that matches recipient certificate
9871 and initialise the ASN1 structures properly based on passed cipher.
9874 *) Belatedly make the BN tests actually check the results.
9877 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9878 to and from BNs: it was completely broken. New compilation option
9879 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9880 key elements as negative integers.
9883 *) Reorganize and speed up MD5.
9884 [Andy Polyakov <appro@fy.chalmers.se>]
9887 [Richard Levitte <richard@levitte.org>]
9889 *) New option -out to asn1parse to allow the parsed structure to be
9890 output to a file. This is most useful when combined with the -strparse
9891 option to examine the output of things like OCTET STRINGS.
9894 *) Make SSL library a little more fool-proof by not requiring any longer
9895 that SSL_set_{accept,connect}_state be called before
9896 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9897 in many applications because usually everything *appeared* to work as
9898 intended anyway -- now it really works as intended).
9901 *) Move openssl.cnf out of lib/.
9904 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9905 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9906 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9907 [Ralf S. Engelschall]
9909 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9910 handle PKCS#7 enveloped data properly.
9911 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9913 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9914 copying pointers. The cert_st handling is changed by this in
9915 various ways (and thus what used to be known as ctx->default_cert
9916 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9917 any longer when s->cert does not give us what we need).
9918 ssl_cert_instantiate becomes obsolete by this change.
9919 As soon as we've got the new code right (possibly it already is?),
9920 we have solved a couple of bugs of the earlier code where s->cert
9921 was used as if it could not have been shared with other SSL structures.
9923 Note that using the SSL API in certain dirty ways now will result
9924 in different behaviour than observed with earlier library versions:
9925 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9926 does not influence s as it used to.
9928 In order to clean up things more thoroughly, inside SSL_SESSION
9929 we don't use CERT any longer, but a new structure SESS_CERT
9930 that holds per-session data (if available); currently, this is
9931 the peer's certificate chain and, for clients, the server's certificate
9932 and temporary key. CERT holds only those values that can have
9933 meaningful defaults in an SSL_CTX.
9936 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9937 from the internal representation. Various PKCS#7 fixes: remove some
9938 evil casts and set the enc_dig_alg field properly based on the signing
9942 *) Allow PKCS#12 password to be set from the command line or the
9943 environment. Let 'ca' get its config file name from the environment
9944 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9948 *) Allow certificate policies extension to use an IA5STRING for the
9949 organization field. This is contrary to the PKIX definition but
9950 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9954 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9955 without disallowing inline assembler and the like for non-pedantic builds.
9958 *) Support Borland C++ builder.
9959 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9964 *) SHA-1 cleanups and performance enhancements.
9965 [Andy Polyakov <appro@fy.chalmers.se>]
9967 *) Sparc v8plus assembler for the bignum library.
9968 [Andy Polyakov <appro@fy.chalmers.se>]
9970 *) Accept any -xxx and +xxx compiler options in Configure.
9973 *) Update HPUX configuration.
9976 *) Add missing sk_<type>_unshift() function to safestack.h
9977 [Ralf S. Engelschall]
9979 *) New function SSL_CTX_use_certificate_chain_file that sets the
9980 "extra_cert"s in addition to the certificate. (This makes sense
9981 only for "PEM" format files, as chains as a whole are not
9985 *) Support verify_depth from the SSL API.
9986 x509_vfy.c had what can be considered an off-by-one-error:
9987 Its depth (which was not part of the external interface)
9988 was actually counting the number of certificates in a chain;
9989 now it really counts the depth.
9992 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9993 instead of X509err, which often resulted in confusing error
9994 messages since the error codes are not globally unique
9995 (e.g. an alleged error in ssl3_accept when a certificate
9996 didn't match the private key).
9998 *) New function SSL_CTX_set_session_id_context that allows to set a default
9999 value (so that you don't need SSL_set_session_id_context for each
10000 connection using the SSL_CTX).
10003 *) OAEP decoding bug fix.
10006 *) Support INSTALL_PREFIX for package builders, as proposed by
10010 *) New Configure options "threads" and "no-threads". For systems
10011 where the proper compiler options are known (currently Solaris
10012 and Linux), "threads" is the default.
10015 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10018 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10019 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10020 such as /usr/local/bin.
10023 *) "make linux-shared" to build shared libraries.
10024 [Niels Poppe <niels@netbox.org>]
10026 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10029 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10030 extension adding in x509 utility.
10033 *) Remove NOPROTO sections and error code comments.
10036 *) Partial rewrite of the DEF file generator to now parse the ANSI
10040 *) New Configure options --prefix=DIR and --openssldir=DIR.
10043 *) Complete rewrite of the error code script(s). It is all now handled
10044 by one script at the top level which handles error code gathering,
10045 header rewriting and C source file generation. It should be much better
10046 than the old method: it now uses a modified version of Ulf's parser to
10047 read the ANSI prototypes in all header files (thus the old K&R definitions
10048 aren't needed for error creation any more) and do a better job of
10049 translating function codes into names. The old 'ASN1 error code imbedded
10050 in a comment' is no longer necessary and it doesn't use .err files which
10051 have now been deleted. Also the error code call doesn't have to appear all
10052 on one line (which resulted in some large lines...).
10055 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10058 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10059 0 (which usually indicates a closed connection), but continue reading.
10062 *) Fix some race conditions.
10065 *) Add support for CRL distribution points extension. Add Certificate
10066 Policies and CRL distribution points documentation.
10069 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10072 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10073 8 of keying material. Merlin has also confirmed interop with this fix
10074 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10075 [Merlin Hughes <merlin@baltimore.ie>]
10077 *) Fix lots of warnings.
10078 [Richard Levitte <levitte@stacken.kth.se>]
10080 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10081 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10082 [Richard Levitte <levitte@stacken.kth.se>]
10084 *) Fix problems with sizeof(long) == 8.
10085 [Andy Polyakov <appro@fy.chalmers.se>]
10087 *) Change functions to ANSI C.
10090 *) Fix typos in error codes.
10091 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10093 *) Remove defunct assembler files from Configure.
10096 *) SPARC v8 assembler BIGNUM implementation.
10097 [Andy Polyakov <appro@fy.chalmers.se>]
10099 *) Support for Certificate Policies extension: both print and set.
10100 Various additions to support the r2i method this uses.
10103 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10104 return a const string when you are expecting an allocated buffer.
10107 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10108 types DirectoryString and DisplayText.
10111 *) Add code to allow r2i extensions to access the configuration database,
10112 add an LHASH database driver and add several ctx helper functions.
10115 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10116 fail when they extended the size of a BIGNUM.
10119 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10120 support typesafe stack.
10123 *) Fix typo in SSL_[gs]et_options().
10124 [Nils Frostberg <nils@medcom.se>]
10126 *) Delete various functions and files that belonged to the (now obsolete)
10127 old X509V3 handling code.
10130 *) New Configure option "rsaref".
10133 *) Don't auto-generate pem.h.
10136 *) Introduce type-safe ASN.1 SETs.
10139 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10140 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10142 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10143 that links with OpenSSL (well at least cause lots of warnings), but fear
10144 not: the conversion is trivial, and it eliminates loads of evil casts. A
10145 few STACKed things have been converted already. Feel free to convert more.
10146 In the fullness of time, I'll do away with the STACK type altogether.
10149 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10150 specified in <certfile> by updating the entry in the index.txt file.
10151 This way one no longer has to edit the index.txt file manually for
10152 revoking a certificate. The -revoke option does the gory details now.
10153 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10155 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10156 `-text' option at all and this way the `-noout -text' combination was
10157 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10158 [Ralf S. Engelschall]
10160 *) Make sure a corresponding plain text error message exists for the
10161 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10162 verify callback function determined that a certificate was revoked.
10163 [Ralf S. Engelschall]
10165 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10166 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10167 all available cipers including rc5, which was forgotten until now.
10168 In order to let the testing shell script know which algorithms
10169 are available, a new (up to now undocumented) command
10170 "openssl list-cipher-commands" is used.
10173 *) Bugfix: s_client occasionally would sleep in select() when
10174 it should have checked SSL_pending() first.
10177 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10178 the raw DSA values prior to ASN.1 encoding.
10181 *) Tweaks to Configure
10182 [Niels Poppe <niels@netbox.org>]
10184 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10188 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10191 *) New config option to avoid instructions that are illegal on the 80386.
10192 The default code is faster, but requires at least a 486.
10195 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10196 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10197 same as SSL2_VERSION anyway.
10200 *) New "-showcerts" option for s_client.
10203 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10204 application. Various cleanups and fixes.
10207 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10208 modify error routines to work internally. Add error codes and PBE init
10209 to library startup routines.
10212 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10213 packing functions to asn1 and evp. Changed function names and error
10214 codes along the way.
10217 *) PKCS12 integration: and so it begins... First of several patches to
10218 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10219 objects to objects.h
10222 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10223 and display support for Thawte strong extranet extension.
10226 *) Add LinuxPPC support.
10227 [Jeff Dubrule <igor@pobox.org>]
10229 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10230 bn_div_words in alpha.s.
10231 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10233 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10234 OAEP isn't supported when OpenSSL is built with RSAref.
10235 [Ulf Moeller <ulf@fitug.de>]
10237 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10238 so they no longer are missing under -DNOPROTO.
10239 [Soren S. Jorvang <soren@t.dk>]
10242 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10244 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10245 doesn't work when the session is reused. Coming soon!
10248 *) Fix a security hole, that allows sessions to be reused in the wrong
10249 context thus bypassing client cert protection! All software that uses
10250 client certs and session caches in multiple contexts NEEDS PATCHING to
10251 allow session reuse! A fuller solution is in the works.
10252 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10254 *) Some more source tree cleanups (removed obsolete files
10255 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10256 permission on "config" script to be executable) and a fix for the INSTALL
10258 [Ulf Moeller <ulf@fitug.de>]
10260 *) Remove some legacy and erroneous uses of malloc, free instead of
10262 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10264 *) Make rsa_oaep_test return non-zero on error.
10265 [Ulf Moeller <ulf@fitug.de>]
10267 *) Add support for native Solaris shared libraries. Configure
10268 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10269 if someone would make that last step automatic.
10270 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10272 *) ctx_size was not built with the right compiler during "make links". Fixed.
10275 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10276 except NULL ciphers". This means the default cipher list will no longer
10277 enable NULL ciphers. They need to be specifically enabled e.g. with
10278 the string "DEFAULT:eNULL".
10281 *) Fix to RSA private encryption routines: if p < q then it would
10282 occasionally produce an invalid result. This will only happen with
10283 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10286 *) Be less restrictive and allow also `perl util/perlpath.pl
10287 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10288 because this way one can also use an interpreter named `perl5' (which is
10289 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10290 installed as `perl').
10291 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10293 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10294 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10296 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10297 advapi32.lib to Win32 build and change the pem test comparison
10298 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10299 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10300 and crypto/des/ede_cbcm_enc.c.
10303 *) DES quad checksum was broken on big-endian architectures. Fixed.
10306 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10307 Win32 test batch file so it (might) work again. The Win32 test batch file
10308 is horrible: I feel ill....
10311 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10312 in e_os.h. Audit of header files to check ANSI and non ANSI
10313 sections: 10 functions were absent from non ANSI section and not exported
10314 from Windows DLLs. Fixed up libeay.num for new functions.
10317 *) Make `openssl version' output lines consistent.
10318 [Ralf S. Engelschall]
10320 *) Fix Win32 symbol export lists for BIO functions: Added
10321 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10322 to ms/libeay{16,32}.def.
10323 [Ralf S. Engelschall]
10325 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10326 fine under Unix and passes some trivial tests I've now added. But the
10327 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10328 added to make sure no one expects that this stuff really works in the
10329 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10330 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10332 [Ralf S. Engelschall]
10334 *) Fix the generation of two part addresses in perl.
10335 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10337 *) Add config entry for Linux on MIPS.
10338 [John Tobey <jtobey@channel1.com>]
10340 *) Make links whenever Configure is run, unless we are on Windoze.
10343 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10344 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10348 *) Add a useful kludge to allow package maintainers to specify compiler and
10349 other platforms details on the command line without having to patch the
10350 Configure script everytime: One now can use ``perl Configure
10351 <id>:<details>'', i.e. platform ids are allowed to have details appended
10352 to them (separated by colons). This is treated as there would be a static
10353 pre-configured entry in Configure's %table under key <id> with value
10354 <details> and ``perl Configure <id>'' is called. So, when you want to
10355 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10356 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10357 now, which overrides the FreeBSD-elf entry on-the-fly.
10358 [Ralf S. Engelschall]
10360 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10363 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10364 on the `perl Configure ...' command line. This way one can compile
10365 OpenSSL libraries with Position Independent Code (PIC) which is needed
10366 for linking it into DSOs.
10367 [Ralf S. Engelschall]
10369 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10373 *) Cleaned up the LICENSE document: The official contact for any license
10374 questions now is the OpenSSL core team under openssl-core@openssl.org.
10375 And add a paragraph about the dual-license situation to make sure people
10376 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10377 to the OpenSSL toolkit.
10378 [Ralf S. Engelschall]
10380 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10381 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10382 Additionally cleaned up the `make links' target: Remove unnecessary
10383 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10384 to speed processing and no longer clutter the display with confusing
10385 stuff. Instead only the actually done links are displayed.
10386 [Ralf S. Engelschall]
10388 *) Permit null encryption ciphersuites, used for authentication only. It used
10389 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10390 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10394 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10395 signed attributes when verifying signatures (this would break them),
10396 the detached data encoding was wrong and public keys obtained using
10397 X509_get_pubkey() weren't freed.
10400 *) Add text documentation for the BUFFER functions. Also added a work around
10401 to a Win95 console bug. This was triggered by the password read stuff: the
10402 last character typed gets carried over to the next fread(). If you were
10403 generating a new cert request using 'req' for example then the last
10404 character of the passphrase would be CR which would then enter the first
10408 *) Added the new `Includes OpenSSL Cryptography Software' button as
10409 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10410 button and can be used by applications based on OpenSSL to show the
10411 relationship to the OpenSSL project.
10412 [Ralf S. Engelschall]
10414 *) Remove confusing variables in function signatures in files
10415 ssl/ssl_lib.c and ssl/ssl.h.
10416 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10418 *) Don't install bss_file.c under PREFIX/include/
10419 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10421 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10422 functions that return function pointers and has support for NT specific
10423 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10424 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10425 unsigned to signed types: this was killing the Win32 compile.
10428 *) Add new certificate file to stack functions,
10429 SSL_add_dir_cert_subjects_to_stack() and
10430 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10431 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10432 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10433 This means that Apache-SSL and similar packages don't have to mess around
10434 to add as many CAs as they want to the preferred list.
10437 *) Experiment with doxygen documentation. Currently only partially applied to
10439 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10440 openssl.doxy as the configuration file.
10443 *) Get rid of remaining C++-style comments which strict C compilers hate.
10444 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10446 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10447 compiled in by default: it has problems with large keys.
10450 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10451 DH private keys and/or callback functions which directly correspond to
10452 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10453 is needed for applications which have to configure certificates on a
10454 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10456 For the RSA certificate situation is makes no difference, but
10457 for the DSA certificate situation this fixes the "no shared cipher"
10458 problem where the OpenSSL cipher selection procedure failed because the
10459 temporary keys were not overtaken from the context and the API provided
10460 no way to reconfigure them.
10461 The new functions now let applications reconfigure the stuff and they
10462 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10463 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10464 non-public-API function ssl_cert_instantiate() is used as a helper
10465 function and also to reduce code redundancy inside ssl_rsa.c.
10466 [Ralf S. Engelschall]
10468 *) Move s_server -dcert and -dkey options out of the undocumented feature
10469 area because they are useful for the DSA situation and should be
10470 recognized by the users.
10471 [Ralf S. Engelschall]
10473 *) Fix the cipher decision scheme for export ciphers: the export bits are
10474 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10475 SSL_EXP_MASK. So, the original variable has to be used instead of the
10476 already masked variable.
10477 [Richard Levitte <levitte@stacken.kth.se>]
10479 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10480 [Richard Levitte <levitte@stacken.kth.se>]
10482 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10483 from `int' to `unsigned int' because it's a length and initialized by
10484 EVP_DigestFinal() which expects an `unsigned int *'.
10485 [Richard Levitte <levitte@stacken.kth.se>]
10487 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10488 script. Instead use the usual Shell->Perl transition trick.
10489 [Ralf S. Engelschall]
10491 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10492 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10493 -noout -modulus' as it's already the case for `openssl rsa -noout
10494 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10495 currently the public key is printed (a decision which was already done by
10496 `openssl dsa -modulus' in the past) which serves a similar purpose.
10497 Additionally the NO_RSA no longer completely removes the whole -modulus
10498 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10500 [Ralf S. Engelschall]
10502 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10503 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10504 [Arne Ansper <arne@ats.cyber.ee>]
10506 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10507 to be added. Now both 'req' and 'ca' can use new objects defined in the
10511 *) Add cool BIO that does syslog (or event log on NT).
10512 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10514 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10515 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10516 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10517 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10520 *) Add preliminary config info for new extension code.
10523 *) Make RSA_NO_PADDING really use no padding.
10524 [Ulf Moeller <ulf@fitug.de>]
10526 *) Generate errors when private/public key check is done.
10529 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10530 for some CRL extensions and new objects added.
10533 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10534 key usage extension and fuller support for authority key id.
10537 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10538 padding method for RSA, which is recommended for new applications in PKCS
10539 #1 v2.0 (RFC 2437, October 1998).
10540 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10541 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10542 against Bleichbacher's attack on RSA.
10543 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10546 *) Updates to the new SSL compression code
10547 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10549 *) Fix so that the version number in the master secret, when passed
10550 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10551 (because the server will not accept higher), that the version number
10552 is 0x03,0x01, not 0x03,0x00
10553 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10555 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10556 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10557 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10560 *) Support for RAW extensions where an arbitrary extension can be
10561 created by including its DER encoding. See apps/openssl.cnf for
10565 *) Make sure latest Perl versions don't interpret some generated C array
10566 code as Perl array code in the crypto/err/err_genc.pl script.
10567 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10569 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10570 not many people have the assembler. Various Win32 compilation fixes and
10571 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10572 build instructions.
10575 *) Modify configure script 'Configure' to automatically create crypto/date.h
10576 file under Win32 and also build pem.h from pem.org. New script
10577 util/mkfiles.pl to create the MINFO file on environments that can't do a
10578 'make files': perl util/mkfiles.pl >MINFO should work.
10581 *) Major rework of DES function declarations, in the pursuit of correctness
10582 and purity. As a result, many evil casts evaporated, and some weirdness,
10583 too. You may find this causes warnings in your code. Zapping your evil
10584 casts will probably fix them. Mostly.
10587 *) Fix for a typo in asn1.h. Bug fix to object creation script
10588 obj_dat.pl. It considered a zero in an object definition to mean
10589 "end of object": none of the objects in objects.h have any zeros
10590 so it wasn't spotted.
10591 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10593 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10594 Masking (CBCM). In the absence of test vectors, the best I have been able
10595 to do is check that the decrypt undoes the encrypt, so far. Send me test
10596 vectors if you have them.
10599 *) Correct calculation of key length for export ciphers (too much space was
10600 allocated for null ciphers). This has not been tested!
10603 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10604 message is now correct (it understands "crypto" and "ssl" on its
10605 command line). There is also now an "update" option. This will update
10606 the util/ssleay.num and util/libeay.num files with any new functions.
10608 perl util/mkdef.pl crypto ssl update
10609 it will update them.
10612 *) Overhauled the Perl interface (perl/*):
10613 - ported BN stuff to OpenSSL's different BN library
10614 - made the perl/ source tree CVS-aware
10615 - renamed the package from SSLeay to OpenSSL (the files still contain
10616 their history because I've copied them in the repository)
10617 - removed obsolete files (the test scripts will be replaced
10618 by better Test::Harness variants in the future)
10619 [Ralf S. Engelschall]
10621 *) First cut for a very conservative source tree cleanup:
10622 1. merge various obsolete readme texts into doc/ssleay.txt
10623 where we collect the old documents and readme texts.
10624 2. remove the first part of files where I'm already sure that we no
10625 longer need them because of three reasons: either they are just temporary
10626 files which were left by Eric or they are preserved original files where
10627 I've verified that the diff is also available in the CVS via "cvs diff
10628 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10629 the crypto/md/ stuff).
10630 [Ralf S. Engelschall]
10632 *) More extension code. Incomplete support for subject and issuer alt
10633 name, issuer and authority key id. Change the i2v function parameters
10634 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10635 what that's for :-) Fix to ASN1 macro which messed up
10636 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10639 *) Preliminary support for ENUMERATED type. This is largely copied from the
10643 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10644 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10646 *) Make sure `make rehash' target really finds the `openssl' program.
10647 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10649 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10650 like to hear about it if this slows down other processors.
10653 *) Add CygWin32 platform information to Configure script.
10654 [Alan Batie <batie@aahz.jf.intel.com>]
10656 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10657 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10659 *) New program nseq to manipulate netscape certificate sequences
10662 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10666 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10667 but the BN code had some problems that would cause failures when
10668 doing certificate verification and some other functions.
10669 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10671 *) Add ASN1 and PEM code to support netscape certificate sequences.
10674 *) Add ASN1 and PEM code to support netscape certificate sequences.
10677 *) Add several PKIX and private extended key usage OIDs.
10680 *) Modify the 'ca' program to handle the new extension code. Modify
10681 openssl.cnf for new extension format, add comments.
10684 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10685 and add a sample to openssl.cnf so req -x509 now adds appropriate
10689 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10690 error code, add initial support to X509_print() and x509 application.
10693 *) Takes a deep breath and start adding X509 V3 extension support code. Add
10694 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10695 stuff is currently isolated and isn't even compiled yet.
10698 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10699 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10700 Removed the versions check from X509 routines when loading extensions:
10701 this allows certain broken certificates that don't set the version
10702 properly to be processed.
10705 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10706 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10707 can still be regenerated with "make depend".
10710 *) Spelling mistake in C version of CAST-128.
10711 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10713 *) Changes to the error generation code. The perl script err-code.pl
10714 now reads in the old error codes and retains the old numbers, only
10715 adding new ones if necessary. It also only changes the .err files if new
10716 codes are added. The makefiles have been modified to only insert errors
10717 when needed (to avoid needlessly modifying header files). This is done
10718 by only inserting errors if the .err file is newer than the auto generated
10719 C file. To rebuild all the error codes from scratch (the old behaviour)
10720 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10721 or delete all the .err files.
10724 *) CAST-128 was incorrectly implemented for short keys. The C version has
10725 been fixed, but is untested. The assembler versions are also fixed, but
10726 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10727 to regenerate it if needed.
10728 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10729 Hagino <itojun@kame.net>]
10731 *) File was opened incorrectly in randfile.c.
10732 [Ulf Möller <ulf@fitug.de>]
10734 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10735 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10736 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10737 al: it's just almost always a UTCTime. Note this patch adds new error
10738 codes so do a "make errors" if there are problems.
10741 *) Correct Linux 1 recognition in config.
10742 [Ulf Möller <ulf@fitug.de>]
10744 *) Remove pointless MD5 hash when using DSA keys in ca.
10745 [Anonymous <nobody@replay.com>]
10747 *) Generate an error if given an empty string as a cert directory. Also
10748 generate an error if handed NULL (previously returned 0 to indicate an
10749 error, but didn't set one).
10750 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10752 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10755 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10756 parameters. This was causing a warning which killed off the Win32 compile.
10759 *) Remove C++ style comments from crypto/bn/bn_local.h.
10760 [Neil Costigan <neil.costigan@celocom.com>]
10762 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10763 based on a text string, looking up short and long names and finally
10764 "dot" format. The "dot" format stuff didn't work. Added new function
10765 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10766 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10767 OID is not part of the table.
10770 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10771 X509_LOOKUP_by_alias().
10774 *) Sort openssl functions by name.
10777 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10778 encryption from sample DSA keys (in case anyone is interested the password
10782 *) Make _all_ *_free functions accept a NULL pointer.
10783 [Frans Heymans <fheymans@isaserver.be>]
10785 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10787 [Anonymous <nobody@replay.com>]
10789 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10790 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10792 *) Don't blow it for numeric -newkey arguments to apps/req.
10793 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10795 *) Temp key "for export" tests were wrong in s3_srvr.c.
10796 [Anonymous <nobody@replay.com>]
10798 *) Add prototype for temp key callback functions
10799 SSL_CTX_set_tmp_{rsa,dh}_callback().
10802 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10803 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10806 *) X509_name_add_entry() freed the wrong thing after an error.
10807 [Arne Ansper <arne@ats.cyber.ee>]
10809 *) rsa_eay.c would attempt to free a NULL context.
10810 [Arne Ansper <arne@ats.cyber.ee>]
10812 *) BIO_s_socket() had a broken should_retry() on Windoze.
10813 [Arne Ansper <arne@ats.cyber.ee>]
10815 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10816 [Arne Ansper <arne@ats.cyber.ee>]
10818 *) Make sure the already existing X509_STORE->depth variable is initialized
10819 in X509_STORE_new(), but document the fact that this variable is still
10820 unused in the certificate verification process.
10821 [Ralf S. Engelschall]
10823 *) Fix the various library and apps files to free up pkeys obtained from
10824 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10827 *) Fix reference counting in X509_PUBKEY_get(). This makes
10828 demos/maurice/example2.c work, amongst others, probably.
10829 [Steve Henson and Ben Laurie]
10831 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10832 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10833 are no longer created. This way we have a single and consistent command
10834 line interface `openssl <command>', similar to `cvs <command>'.
10835 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10837 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10838 BIT STRING wrapper always have zero unused bits.
10841 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10844 *) Make the top-level INSTALL documentation easier to understand.
10847 *) Makefiles updated to exit if an error occurs in a sub-directory
10848 make (including if user presses ^C) [Paul Sutton]
10850 *) Make Montgomery context stuff explicit in RSA data structure.
10853 *) Fix build order of pem and err to allow for generated pem.h.
10856 *) Fix renumbering bug in X509_NAME_delete_entry().
10859 *) Enhanced the err-ins.pl script so it makes the error library number
10860 global and can add a library name. This is needed for external ASN1 and
10861 other error libraries.
10864 *) Fixed sk_insert which never worked properly.
10867 *) Fix ASN1 macros so they can handle indefinite length constructed
10868 EXPLICIT tags. Some non standard certificates use these: they can now
10872 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10873 into a single doc/ssleay.txt bundle. This way the information is still
10874 preserved but no longer messes up this directory. Now it's new room for
10875 the new set of documentation files.
10876 [Ralf S. Engelschall]
10878 *) SETs were incorrectly DER encoded. This was a major pain, because they
10879 shared code with SEQUENCEs, which aren't coded the same. This means that
10880 almost everything to do with SETs or SEQUENCEs has either changed name or
10881 number of arguments.
10882 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10884 *) Fix test data to work with the above.
10887 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10888 was already fixed by Eric for 0.9.1 it seems.
10889 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10891 *) Autodetect FreeBSD3.
10894 *) Fix various bugs in Configure. This affects the following platforms:
10898 unixware-2.0-pentium
10902 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10903 before they are needed.
10906 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10910 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10912 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10913 changed SSLeay to OpenSSL in version strings.
10914 [Ralf S. Engelschall]
10916 *) Some fixups to the top-level documents.
10919 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10920 because the symlink to include/ was missing.
10921 [Ralf S. Engelschall]
10923 *) Incorporated the popular no-RSA/DSA-only patches
10924 which allow to compile a RSA-free SSLeay.
10925 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10927 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10928 when "ssleay" is still not found.
10929 [Ralf S. Engelschall]
10931 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10932 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10934 *) Updated the README file.
10935 [Ralf S. Engelschall]
10937 *) Added various .cvsignore files in the CVS repository subdirs
10938 to make a "cvs update" really silent.
10939 [Ralf S. Engelschall]
10941 *) Recompiled the error-definition header files and added
10942 missing symbols to the Win32 linker tables.
10943 [Ralf S. Engelschall]
10945 *) Cleaned up the top-level documents;
10946 o new files: CHANGES and LICENSE
10947 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10948 o merged COPYRIGHT into LICENSE
10949 o removed obsolete TODO file
10950 o renamed MICROSOFT to INSTALL.W32
10951 [Ralf S. Engelschall]
10953 *) Removed dummy files from the 0.9.1b source tree:
10954 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10955 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10956 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10957 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10958 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10959 [Ralf S. Engelschall]
10961 *) Added various platform portability fixes.
10964 *) The Genesis of the OpenSSL rpject:
10965 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10966 Young and Tim J. Hudson created while they were working for C2Net until
10968 [The OpenSSL Project]
10971 Changes between 0.9.0b and 0.9.1b [not released]
10973 *) Updated a few CA certificates under certs/
10976 *) Changed some BIGNUM api stuff.
10979 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10980 DGUX x86, Linux Alpha, etc.
10983 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10984 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10988 *) Add -strparse option to asn1pars program which parses nested
10990 [Dr Stephen Henson <shenson@bigfoot.com>]
10992 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10995 *) DSA fix for "ca" program.
10998 *) Added "-genkey" option to "dsaparam" program.
11001 *) Added RIPE MD160 (rmd160) message digest.
11004 *) Added -a (all) option to "ssleay version" command.
11007 *) Added PLATFORM define which is the id given to Configure.
11010 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11013 *) Extended the ASN.1 parser routines.
11016 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11019 *) Added a BN_CTX to the BN library.
11022 *) Fixed the weak key values in DES library
11025 *) Changed API in EVP library for cipher aliases.
11028 *) Added support for RC2/64bit cipher.
11031 *) Converted the lhash library to the crypto/mem.c functions.
11034 *) Added more recognized ASN.1 object ids.
11037 *) Added more RSA padding checks for SSL/TLS.
11040 *) Added BIO proxy/filter functionality.
11043 *) Added extra_certs to SSL_CTX which can be used
11044 send extra CA certificates to the client in the CA cert chain sending
11045 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11048 *) Now Fortezza is denied in the authentication phase because
11049 this is key exchange mechanism is not supported by SSLeay at all.
11052 *) Additional PKCS1 checks.
11055 *) Support the string "TLSv1" for all TLS v1 ciphers.
11058 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11059 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11062 *) Fixed a few memory leaks.
11065 *) Fixed various code and comment typos.
11068 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11069 bytes sent in the client random.
11070 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob