5 Changes between 1.0.2 and 1.1.0 [xx XXX xxxx]
7 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
8 Access to deprecated functions can be re-enabled by running config with
9 "enable-deprecated". In addition applications wishing to use deprecated
10 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
11 will, by default, disable some transitive includes that previously existed
12 in the header files (e.g. ec.h will no longer, by default, include bn.h)
15 *) Added support for OCB mode. OpenSSL has been granted a patent license
16 compatible with the OpenSSL license for use of OCB. Details are available
17 at https://www.openssl.org/docs/misc/OCB-patent-grant-OpenSSL.pdf. Support
18 for OCB can be removed by calling config with no-ocb.
21 *) SSLv2 support has been removed. It still supports receiving a SSLv2
22 compatible client hello.
25 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
26 done while fixing the error code for the key-too-small case.
27 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
29 *) Remove various unsupported platforms:
35 *) Experimental support for a new, fast, unbiased prime candidate generator,
36 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
37 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
39 *) New output format NSS in the sess_id command line tool. This allows
40 exporting the session id and the master key in NSS keylog format.
41 [Martin Kaiser <martin@kaiser.cx>]
43 *) Harmonize version and its documentation. -f flag is used to display
45 [mancha <mancha1@zoho.com>]
47 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
49 [mancha <mancha1@zoho.com>]
51 *) Fix some double frees. These are not thought to be exploitable.
52 [mancha <mancha1@zoho.com>]
54 *) A missing bounds check in the handling of the TLS heartbeat extension
55 can be used to reveal up to 64k of memory to a connected client or
58 Thanks for Neel Mehta of Google Security for discovering this bug and to
59 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
60 preparing the fix (CVE-2014-0160)
61 [Adam Langley, Bodo Moeller]
63 *) Fix for the attack described in the paper "Recovering OpenSSL
64 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
65 by Yuval Yarom and Naomi Benger. Details can be obtained from:
66 http://eprint.iacr.org/2014/140
68 Thanks to Yuval Yarom and Naomi Benger for discovering this
69 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
70 [Yuval Yarom and Naomi Benger]
72 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
73 this fixes a limitation in previous versions of OpenSSL.
76 *) Experimental encrypt-then-mac support.
78 Experimental support for encrypt then mac from
79 draft-gutmann-tls-encrypt-then-mac-02.txt
81 To enable it set the appropriate extension number (0x42 for the test
82 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
84 For non-compliant peers (i.e. just about everything) this should have no
87 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
91 *) Add EVP support for key wrapping algorithms, to avoid problems with
92 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
93 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
94 algorithms and include tests cases.
97 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
101 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
102 MGF1 digest and OAEP label.
105 *) Make openssl verify return errors.
106 [Chris Palmer <palmer@google.com> and Ben Laurie]
108 *) New function ASN1_TIME_diff to calculate the difference between two
109 ASN1_TIME structures or one structure and the current time.
112 *) Update fips_test_suite to support multiple command line options. New
113 test to induce all self test errors in sequence and check expected
117 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
118 sign or verify all in one operation.
121 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
122 test programs and fips_test_suite. Includes functionality to parse
123 the minimal script output of fipsalgest.pl directly.
126 *) Add authorisation parameter to FIPS_module_mode_set().
129 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
132 *) Use separate DRBG fields for internal and external flags. New function
133 FIPS_drbg_health_check() to perform on demand health checking. Add
134 generation tests to fips_test_suite with reduced health check interval to
135 demonstrate periodic health checking. Add "nodh" option to
136 fips_test_suite to skip very slow DH test.
139 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
143 *) More extensive health check for DRBG checking many more failure modes.
144 New function FIPS_selftest_drbg_all() to handle every possible DRBG
145 combination: call this in fips_test_suite.
148 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
149 and POST to handle Dual EC cases.
152 *) Add support for canonical generation of DSA parameter 'g'. See
155 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
156 POST to handle HMAC cases.
159 *) Add functions FIPS_module_version() and FIPS_module_version_text()
160 to return numerical and string versions of the FIPS module number.
163 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
164 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
165 outside the validated module in the FIPS capable OpenSSL.
168 *) Minor change to DRBG entropy callback semantics. In some cases
169 there is no multiple of the block length between min_len and
170 max_len. Allow the callback to return more than max_len bytes
171 of entropy but discard any extra: it is the callback's responsibility
172 to ensure that the extra data discarded does not impact the
173 requested amount of entropy.
176 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
177 information in FIPS186-3, SP800-57 and SP800-131A.
180 *) CCM support via EVP. Interface is very similar to GCM case except we
181 must supply all data in one chunk (i.e. no update, final) and the
182 message length must be supplied if AAD is used. Add algorithm test
186 *) Initial version of POST overhaul. Add POST callback to allow the status
187 of POST to be monitored and/or failures induced. Modify fips_test_suite
188 to use callback. Always run all selftests even if one fails.
191 *) XTS support including algorithm test driver in the fips_gcmtest program.
192 Note: this does increase the maximum key length from 32 to 64 bytes but
193 there should be no binary compatibility issues as existing applications
194 will never use XTS mode.
197 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
198 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
199 performs algorithm blocking for unapproved PRNG types. Also do not
200 set PRNG type in FIPS_mode_set(): leave this to the application.
201 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
202 the standard OpenSSL PRNG: set additional data to a date time vector.
205 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
206 This shouldn't present any incompatibility problems because applications
207 shouldn't be using these directly and any that are will need to rethink
208 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
211 *) Extensive self tests and health checking required by SP800-90 DRBG.
212 Remove strength parameter from FIPS_drbg_instantiate and always
213 instantiate at maximum supported strength.
216 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
219 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
222 *) New function DH_compute_key_padded() to compute a DH key and pad with
223 leading zeroes if needed: this complies with SP800-56A et al.
226 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
227 anything, incomplete, subject to change and largely untested at present.
230 *) Modify fipscanisteronly build option to only build the necessary object
231 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
234 *) Add experimental option FIPSSYMS to give all symbols in
235 fipscanister.o and FIPS or fips prefix. This will avoid
236 conflicts with future versions of OpenSSL. Add perl script
237 util/fipsas.pl to preprocess assembly language source files
238 and rename any affected symbols.
241 *) Add selftest checks and algorithm block of non-fips algorithms in
242 FIPS mode. Remove DES2 from selftests.
245 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
246 return internal method without any ENGINE dependencies. Add new
247 tiny fips sign and verify functions.
250 *) New build option no-ec2m to disable characteristic 2 code.
253 *) New build option "fipscanisteronly". This only builds fipscanister.o
254 and (currently) associated fips utilities. Uses the file Makefile.fips
255 instead of Makefile.org as the prototype.
258 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
259 Update fips_gcmtest to use IV generator.
262 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
263 setting output buffer to NULL. The *Final function must be
264 called although it will not retrieve any additional data. The tag
265 can be set or retrieved with a ctrl. The IV length is by default 12
266 bytes (96 bits) but can be set to an alternative value. If the IV
267 length exceeds the maximum IV length (currently 16 bytes) it cannot be
271 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
272 underlying do_cipher function handles all cipher semantics itself
273 including padding and finalisation. This is useful if (for example)
274 an ENGINE cipher handles block padding itself. The behaviour of
275 do_cipher is subtly changed if this flag is set: the return value
276 is the number of characters written to the output buffer (zero is
277 no longer an error code) or a negative error code. Also if the
278 input buffer is NULL and length 0 finalisation should be performed.
281 *) If a candidate issuer certificate is already part of the constructed
282 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
285 *) Improve forward-security support: add functions
287 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
288 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
290 for use by SSL/TLS servers; the callback function will be called whenever a
291 new session is created, and gets to decide whether the session may be
292 cached to make it resumable (return 0) or not (return 1). (As by the
293 SSL/TLS protocol specifications, the session_id sent by the server will be
294 empty to indicate that the session is not resumable; also, the server will
295 not generate RFC 4507 (RFC 5077) session tickets.)
297 A simple reasonable callback implementation is to return is_forward_secure.
298 This parameter will be set to 1 or 0 depending on the ciphersuite selected
299 by the SSL/TLS server library, indicating whether it can provide forward
301 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
303 *) New -verify_name option in command line utilities to set verification
307 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
308 Add CMAC pkey methods.
311 *) Experimental renegotiation in s_server -www mode. If the client
312 browses /reneg connection is renegotiated. If /renegcert it is
313 renegotiated requesting a certificate.
316 *) Add an "external" session cache for debugging purposes to s_server. This
317 should help trace issues which normally are only apparent in deployed
318 multi-process servers.
321 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
322 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
323 BIO_set_cipher() and some obscure PEM functions were changed so they
324 can now return an error. The RAND changes required a change to the
325 RAND_METHOD structure.
328 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
329 a gcc attribute to warn if the result of a function is ignored. This
330 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
331 whose return value is often ignored.
334 Changes between 1.0.1k and 1.0.2 [xx XXX xxxx]
336 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
337 (other platforms pending).
338 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
340 *) Add support for the SignedCertificateTimestampList certificate and
341 OCSP response extensions from RFC6962.
344 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
345 for corner cases. (Certain input points at infinity could lead to
346 bogus results, with non-infinity inputs mapped to infinity too.)
349 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
350 This covers AES, SHA256/512 and GHASH. "Initial" means that most
351 common cases are optimized and there still is room for further
352 improvements. Vector Permutation AES for Altivec is also added.
355 *) Add support for little-endian ppc64 Linux target.
356 [Marcelo Cerri (IBM)]
358 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
359 SHA1, SHA256 and GHASH. "Initial" means that most common cases
360 are optimized and there still is room for further improvements.
361 Both 32- and 64-bit modes are supported.
362 [Andy Polyakov, Ard Biesheuvel (Linaro)]
364 *) Improved ARMv7 NEON support.
367 *) Support for SPARC Architecture 2011 crypto extensions, first
368 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
369 SHA256/512, MD5, GHASH and modular exponentiation.
370 [Andy Polyakov, David Miller]
372 *) Accelerated modular exponentiation for Intel processors, a.k.a.
374 [Shay Gueron & Vlad Krasnov (Intel Corp)]
376 *) Support for new and upcoming Intel processors, including AVX2,
377 BMI and SHA ISA extensions. This includes additional "stitched"
378 implementations, AESNI-SHA256 and GCM, and multi-buffer support
381 This work was sponsored by Intel Corp.
384 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
385 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
386 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
389 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
390 this fixes a limiation in previous versions of OpenSSL.
393 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
394 MGF1 digest and OAEP label.
397 *) Add EVP support for key wrapping algorithms, to avoid problems with
398 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
399 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
400 algorithms and include tests cases.
403 *) Add functions to allocate and set the fields of an ECDSA_METHOD
405 [Douglas E. Engert, Steve Henson]
407 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
408 difference in days and seconds between two tm or ASN1_TIME structures.
411 *) Add -rev test option to s_server to just reverse order of characters
412 received by client and send back to server. Also prints an abbreviated
413 summary of the connection parameters.
416 *) New option -brief for s_client and s_server to print out a brief summary
417 of connection parameters.
420 *) Add callbacks for arbitrary TLS extensions.
421 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
423 *) New option -crl_download in several openssl utilities to download CRLs
424 from CRLDP extension in certificates.
427 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
430 *) New function X509_CRL_diff to generate a delta CRL from the difference
431 of two full CRLs. Add support to "crl" utility.
434 *) New functions to set lookup_crls function and to retrieve
435 X509_STORE from X509_STORE_CTX.
438 *) Print out deprecated issuer and subject unique ID fields in
442 *) Extend OCSP I/O functions so they can be used for simple general purpose
443 HTTP as well as OCSP. New wrapper function which can be used to download
444 CRLs using the OCSP API.
447 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
450 *) SSL_CONF* functions. These provide a common framework for application
451 configuration using configuration files or command lines.
454 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
455 message callback and prints the results. Needs compile time option
456 "enable-ssl-trace". New options to s_client and s_server to enable
460 *) New ctrl and macro to retrieve supported points extensions.
461 Print out extension in s_server and s_client.
464 *) New functions to retrieve certificate signature and signature
468 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
472 *) New Suite B modes for TLS code. These use and enforce the requirements
473 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
474 only use Suite B curves. The Suite B modes can be set by using the
475 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
478 *) New chain verification flags for Suite B levels of security. Check
479 algorithms are acceptable when flags are set in X509_verify_cert.
482 *) Make tls1_check_chain return a set of flags indicating checks passed
483 by a certificate chain. Add additional tests to handle client
484 certificates: checks for matching certificate type and issuer name
488 *) If an attempt is made to use a signature algorithm not in the peer
489 preference list abort the handshake. If client has no suitable
490 signature algorithms in response to a certificate request do not
494 *) If server EC tmp key is not in client preference list abort handshake.
497 *) Add support for certificate stores in CERT structure. This makes it
498 possible to have different stores per SSL structure or one store in
499 the parent SSL_CTX. Include distint stores for certificate chain
500 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
501 to build and store a certificate chain in CERT structure: returing
502 an error if the chain cannot be built: this will allow applications
503 to test if a chain is correctly configured.
505 Note: if the CERT based stores are not set then the parent SSL_CTX
506 store is used to retain compatibility with existing behaviour.
510 *) New function ssl_set_client_disabled to set a ciphersuite disabled
511 mask based on the current session, check mask when sending client
512 hello and checking the requested ciphersuite.
515 *) New ctrls to retrieve and set certificate types in a certificate
516 request message. Print out received values in s_client. If certificate
517 types is not set with custom values set sensible values based on
518 supported signature algorithms.
521 *) Support for distinct client and server supported signature algorithms.
524 *) Add certificate callback. If set this is called whenever a certificate
525 is required by client or server. An application can decide which
526 certificate chain to present based on arbitrary criteria: for example
527 supported signature algorithms. Add very simple example to s_server.
528 This fixes many of the problems and restrictions of the existing client
529 certificate callback: for example you can now clear an existing
530 certificate and specify the whole chain.
533 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
534 the certificate can be used for (if anything). Set valid_flags field
535 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
536 to have similar checks in it.
538 Add new "cert_flags" field to CERT structure and include a "strict mode".
539 This enforces some TLS certificate requirements (such as only permitting
540 certificate signature algorithms contained in the supported algorithms
541 extension) which some implementations ignore: this option should be used
542 with caution as it could cause interoperability issues.
545 *) Update and tidy signature algorithm extension processing. Work out
546 shared signature algorithms based on preferences and peer algorithms
547 and print them out in s_client and s_server. Abort handshake if no
548 shared signature algorithms.
551 *) Add new functions to allow customised supported signature algorithms
552 for SSL and SSL_CTX structures. Add options to s_client and s_server
556 *) New function SSL_certs_clear() to delete all references to certificates
557 from an SSL structure. Before this once a certificate had been added
558 it couldn't be removed.
561 *) Integrate hostname, email address and IP address checking with certificate
562 verification. New verify options supporting checking in opensl utility.
565 *) Fixes and wildcard matching support to hostname and email checking
566 functions. Add manual page.
567 [Florian Weimer (Red Hat Product Security Team)]
569 *) New functions to check a hostname email or IP address against a
570 certificate. Add options x509 utility to print results of checks against
574 *) Fix OCSP checking.
575 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
577 *) Initial experimental support for explicitly trusted non-root CAs.
578 OpenSSL still tries to build a complete chain to a root but if an
579 intermediate CA has a trust setting included that is used. The first
580 setting is used: whether to trust (e.g., -addtrust option to the x509
584 *) Add -trusted_first option which attempts to find certificates in the
585 trusted store even if an untrusted chain is also supplied.
588 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
589 platform support for Linux and Android.
592 *) Support for linux-x32, ILP32 environment in x86_64 framework.
595 *) Experimental multi-implementation support for FIPS capable OpenSSL.
596 When in FIPS mode the approved implementations are used as normal,
597 when not in FIPS mode the internal unapproved versions are used instead.
598 This means that the FIPS capable OpenSSL isn't forced to use the
599 (often lower performance) FIPS implementations outside FIPS mode.
602 *) Transparently support X9.42 DH parameters when calling
603 PEM_read_bio_DHparameters. This means existing applications can handle
604 the new parameter format automatically.
607 *) Initial experimental support for X9.42 DH parameter format: mainly
608 to support use of 'q' parameter for RFC5114 parameters.
611 *) Add DH parameters from RFC5114 including test data to dhtest.
614 *) Support for automatic EC temporary key parameter selection. If enabled
615 the most preferred EC parameters are automatically used instead of
616 hardcoded fixed parameters. Now a server just has to call:
617 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
618 support ECDH and use the most appropriate parameters.
621 *) Enhance and tidy EC curve and point format TLS extension code. Use
622 static structures instead of allocation if default values are used.
623 New ctrls to set curves we wish to support and to retrieve shared curves.
624 Print out shared curves in s_server. New options to s_server and s_client
625 to set list of supported curves.
628 *) New ctrls to retrieve supported signature algorithms and
629 supported curve values as an array of NIDs. Extend openssl utility
630 to print out received values.
633 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
634 between NIDs and the more common NIST names such as "P-256". Enhance
635 ecparam utility and ECC method to recognise the NIST names for curves.
638 *) Enhance SSL/TLS certificate chain handling to support different
639 chains for each certificate instead of one chain in the parent SSL_CTX.
642 *) Support for fixed DH ciphersuite client authentication: where both
643 server and client use DH certificates with common parameters.
646 *) Support for fixed DH ciphersuites: those requiring DH server
650 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
652 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
653 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
654 X509_CINF_get_signature were reverted post internal team review.
656 Changes between 1.0.1j and 1.0.1k [xx XXX xxxx]
658 *) Do not resume sessions on the server if the negotiated protocol
659 version does not match the session's version. Resuming with a different
660 version, while not strictly forbidden by the RFC, is of questionable
661 sanity and breaks all known clients.
662 [David Benjamin, Emilia Käsper]
664 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
665 early CCS messages during renegotiation. (Note that because
666 renegotiation is encrypted, this early CCS was not exploitable.)
669 *) Tighten client-side session ticket handling during renegotiation:
670 ensure that the client only accepts a session ticket if the server sends
671 the extension anew in the ServerHello. Previously, a TLS client would
672 reuse the old extension state and thus accept a session ticket if one was
673 announced in the initial ServerHello.
675 Similarly, ensure that the client requires a session ticket if one
676 was advertised in the ServerHello. Previously, a TLS client would
677 ignore a missing NewSessionTicket message.
680 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
684 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
685 sends a carefully crafted handshake message, to cause OpenSSL to fail
686 to free up to 64k of memory causing a memory leak. This could be
687 exploited in a Denial Of Service attack. This issue affects OpenSSL
688 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
689 whether SRTP is used or configured. Implementations of OpenSSL that
690 have been compiled with OPENSSL_NO_SRTP defined are not affected.
692 The fix was developed by the OpenSSL team.
696 *) Session Ticket Memory Leak.
698 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
699 integrity of that ticket is first verified. In the event of a session
700 ticket integrity check failing, OpenSSL will fail to free memory
701 causing a memory leak. By sending a large number of invalid session
702 tickets an attacker could exploit this issue in a Denial Of Service
707 *) Build option no-ssl3 is incomplete.
709 When OpenSSL is configured with "no-ssl3" as a build option, servers
710 could accept and complete a SSL 3.0 handshake, and clients could be
711 configured to send them.
713 [Akamai and the OpenSSL team]
715 *) Add support for TLS_FALLBACK_SCSV.
716 Client applications doing fallback retries should call
717 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
719 [Adam Langley, Bodo Moeller]
721 *) Add additional DigestInfo checks.
723 Reencode DigestInto in DER and check against the original when
724 verifying RSA signature: this will reject any improperly encoded
725 DigestInfo structures.
727 Note: this is a precautionary measure and no attacks are currently known.
731 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
733 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
734 SRP code can be overrun an internal buffer. Add sanity check that
735 g, A, B < N to SRP code.
737 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
738 Group for discovering this issue.
742 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
743 TLS 1.0 instead of higher protocol versions when the ClientHello message
744 is badly fragmented. This allows a man-in-the-middle attacker to force a
745 downgrade to TLS 1.0 even if both the server and the client support a
746 higher protocol version, by modifying the client's TLS records.
748 Thanks to David Benjamin and Adam Langley (Google) for discovering and
749 researching this issue.
753 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
754 to a denial of service attack. A malicious server can crash the client
755 with a null pointer dereference (read) by specifying an anonymous (EC)DH
756 ciphersuite and sending carefully crafted handshake messages.
758 Thanks to Felix Gröbert (Google) for discovering and researching this
763 *) By sending carefully crafted DTLS packets an attacker could cause openssl
764 to leak memory. This can be exploited through a Denial of Service attack.
765 Thanks to Adam Langley for discovering and researching this issue.
769 *) An attacker can force openssl to consume large amounts of memory whilst
770 processing DTLS handshake messages. This can be exploited through a
771 Denial of Service attack.
772 Thanks to Adam Langley for discovering and researching this issue.
776 *) An attacker can force an error condition which causes openssl to crash
777 whilst processing DTLS packets due to memory being freed twice. This
778 can be exploited through a Denial of Service attack.
779 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
784 *) If a multithreaded client connects to a malicious server using a resumed
785 session and the server sends an ec point format extension it could write
786 up to 255 bytes to freed memory.
788 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
793 *) A malicious server can crash an OpenSSL client with a null pointer
794 dereference (read) by specifying an SRP ciphersuite even though it was not
795 properly negotiated with the client. This can be exploited through a
796 Denial of Service attack.
798 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
799 discovering and researching this issue.
803 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
804 X509_name_oneline, X509_name_print_ex et al. to leak some information
805 from the stack. Applications may be affected if they echo pretty printing
806 output to the attacker.
808 Thanks to Ivan Fratric (Google) for discovering this issue.
810 [Emilia Käsper, and Steve Henson]
812 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
813 for corner cases. (Certain input points at infinity could lead to
814 bogus results, with non-infinity inputs mapped to infinity too.)
817 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
819 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
820 handshake can force the use of weak keying material in OpenSSL
821 SSL/TLS clients and servers.
823 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
824 researching this issue. (CVE-2014-0224)
825 [KIKUCHI Masashi, Steve Henson]
827 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
828 OpenSSL DTLS client the code can be made to recurse eventually crashing
831 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
833 [Imre Rad, Steve Henson]
835 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
836 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
837 client or server. This is potentially exploitable to run arbitrary
838 code on a vulnerable client or server.
840 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
841 [Jüri Aedla, Steve Henson]
843 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
844 are subject to a denial of service attack.
846 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
847 this issue. (CVE-2014-3470)
848 [Felix Gröbert, Ivan Fratric, Steve Henson]
850 *) Harmonize version and its documentation. -f flag is used to display
852 [mancha <mancha1@zoho.com>]
854 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
856 [mancha <mancha1@zoho.com>]
858 *) Fix some double frees. These are not thought to be exploitable.
859 [mancha <mancha1@zoho.com>]
861 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
863 *) A missing bounds check in the handling of the TLS heartbeat extension
864 can be used to reveal up to 64k of memory to a connected client or
867 Thanks for Neel Mehta of Google Security for discovering this bug and to
868 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
869 preparing the fix (CVE-2014-0160)
870 [Adam Langley, Bodo Moeller]
872 *) Fix for the attack described in the paper "Recovering OpenSSL
873 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
874 by Yuval Yarom and Naomi Benger. Details can be obtained from:
875 http://eprint.iacr.org/2014/140
877 Thanks to Yuval Yarom and Naomi Benger for discovering this
878 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
879 [Yuval Yarom and Naomi Benger]
881 *) TLS pad extension: draft-agl-tls-padding-03
883 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
884 TLS client Hello record length value would otherwise be > 255 and
885 less that 512 pad with a dummy extension containing zeroes so it
886 is at least 512 bytes long.
888 [Adam Langley, Steve Henson]
890 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
892 *) Fix for TLS record tampering bug. A carefully crafted invalid
893 handshake could crash OpenSSL with a NULL pointer exception.
894 Thanks to Anton Johansson for reporting this issues.
897 *) Keep original DTLS digest and encryption contexts in retransmission
898 structures so we can use the previous session parameters if they need
899 to be resent. (CVE-2013-6450)
902 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
903 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
904 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
905 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
906 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
907 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
908 [Rob Stradling, Adam Langley]
910 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
912 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
913 supporting platforms or when small records were transferred.
914 [Andy Polyakov, Steve Henson]
916 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
918 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
920 This addresses the flaw in CBC record processing discovered by
921 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
922 at: http://www.isg.rhul.ac.uk/tls/
924 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
925 Security Group at Royal Holloway, University of London
926 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
927 Emilia Käsper for the initial patch.
929 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
931 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
932 ciphersuites which can be exploited in a denial of service attack.
933 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
934 and detecting this bug and to Wolfgang Ettlinger
935 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
939 *) Return an error when checking OCSP signatures when key is NULL.
940 This fixes a DoS attack. (CVE-2013-0166)
943 *) Make openssl verify return errors.
944 [Chris Palmer <palmer@google.com> and Ben Laurie]
946 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
947 the right response is stapled. Also change SSL_get_certificate()
948 so it returns the certificate actually sent.
949 See http://rt.openssl.org/Ticket/Display.html?id=2836.
950 [Rob Stradling <rob.stradling@comodo.com>]
952 *) Fix possible deadlock when decoding public keys.
955 *) Don't use TLS 1.0 record version number in initial client hello
959 Changes between 1.0.1b and 1.0.1c [10 May 2012]
961 *) Sanity check record length before skipping explicit IV in TLS
962 1.2, 1.1 and DTLS to fix DoS attack.
964 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
965 fuzzing as a service testing platform.
969 *) Initialise tkeylen properly when encrypting CMS messages.
970 Thanks to Solar Designer of Openwall for reporting this issue.
973 *) In FIPS mode don't try to use composite ciphers as they are not
977 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
979 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
980 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
981 mean any application compiled against OpenSSL 1.0.0 headers setting
982 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
983 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
984 0x10000000L Any application which was previously compiled against
985 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
986 will need to be recompiled as a result. Letting be results in
987 inability to disable specifically TLS 1.1 and in client context,
988 in unlike event, limit maximum offered version to TLS 1.0 [see below].
991 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
992 disable just protocol X, but all protocols above X *if* there are
993 protocols *below* X still enabled. In more practical terms it means
994 that if application wants to disable TLS1.0 in favor of TLS1.1 and
995 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
996 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
1000 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
1002 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1003 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1004 in CRYPTO_realloc_clean.
1006 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1007 issue and to Adam Langley <agl@chromium.org> for fixing it.
1009 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1011 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1014 *) Workarounds for some broken servers that "hang" if a client hello
1015 record length exceeds 255 bytes.
1017 1. Do not use record version number > TLS 1.0 in initial client
1018 hello: some (but not all) hanging servers will now work.
1019 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1020 the number of ciphers sent in the client hello. This should be
1021 set to an even number, such as 50, for example by passing:
1022 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1023 Most broken servers should now work.
1024 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1025 TLS 1.2 client support entirely.
1028 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1031 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1033 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1034 STRING form instead of a DigestInfo.
1037 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1038 and the RSA_sign/RSA_verify functions. This was made more apparent when
1039 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1040 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1041 the correct format in RSA_verify so both forms transparently work.
1044 *) Some servers which support TLS 1.0 can choke if we initially indicate
1045 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1046 encrypted premaster secret. As a workaround use the maximum permitted
1047 client version in client hello, this should keep such servers happy
1048 and still work with previous versions of OpenSSL.
1051 *) Add support for TLS/DTLS heartbeats.
1052 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1054 *) Add support for SCTP.
1055 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1057 *) Improved PRNG seeding for VOS.
1058 [Paul Green <Paul.Green@stratus.com>]
1060 *) Extensive assembler packs updates, most notably:
1062 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1063 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1064 - x86_64: bit-sliced AES implementation;
1065 - ARM: NEON support, contemporary platforms optimizations;
1066 - s390x: z196 support;
1067 - *: GHASH and GF(2^m) multiplication implementations;
1071 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1072 (removal of unnecessary code)
1073 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1075 *) Add TLS key material exporter from RFC 5705.
1078 *) Add DTLS-SRTP negotiation from RFC 5764.
1081 *) Add Next Protocol Negotiation,
1082 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1083 disabled with a no-npn flag to config or Configure. Code donated
1085 [Adam Langley <agl@google.com> and Ben Laurie]
1087 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1088 NIST-P256, NIST-P521, with constant-time single point multiplication on
1089 typical inputs. Compiler support for the nonstandard type __uint128_t is
1090 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1091 Code made available under Apache License version 2.0.
1093 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1094 line to include this in your build of OpenSSL, and run "make depend" (or
1095 "make update"). This enables the following EC_METHODs:
1097 EC_GFp_nistp224_method()
1098 EC_GFp_nistp256_method()
1099 EC_GFp_nistp521_method()
1101 EC_GROUP_new_by_curve_name() will automatically use these (while
1102 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1104 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1106 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1107 all platforms. Move ssize_t definition from e_os.h to the public
1108 header file e_os2.h as it now appears in public header file cms.h
1111 *) New -sigopt option to the ca, req and x509 utilities. Additional
1112 signature parameters can be passed using this option and in
1116 *) Add RSA PSS signing function. This will generate and set the
1117 appropriate AlgorithmIdentifiers for PSS based on those in the
1118 corresponding EVP_MD_CTX structure. No application support yet.
1121 *) Support for companion algorithm specific ASN1 signing routines.
1122 New function ASN1_item_sign_ctx() signs a pre-initialised
1123 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
1124 the appropriate parameters.
1127 *) Add new algorithm specific ASN1 verification initialisation function
1128 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
1129 handling will be the same no matter what EVP_PKEY_METHOD is used.
1130 Add a PSS handler to support verification of PSS signatures: checked
1131 against a number of sample certificates.
1134 *) Add signature printing for PSS. Add PSS OIDs.
1135 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
1137 *) Add algorithm specific signature printing. An individual ASN1 method
1138 can now print out signatures instead of the standard hex dump.
1140 More complex signatures (e.g. PSS) can print out more meaningful
1141 information. Include DSA version that prints out the signature
1145 *) Password based recipient info support for CMS library: implementing
1149 *) Split password based encryption into PBES2 and PBKDF2 functions. This
1150 neatly separates the code into cipher and PBE sections and is required
1151 for some algorithms that split PBES2 into separate pieces (such as
1152 password based CMS).
1155 *) Session-handling fixes:
1156 - Fix handling of connections that are resuming with a session ID,
1157 but also support Session Tickets.
1158 - Fix a bug that suppressed issuing of a new ticket if the client
1159 presented a ticket with an expired session.
1160 - Try to set the ticket lifetime hint to something reasonable.
1161 - Make tickets shorter by excluding irrelevant information.
1162 - On the client side, don't ignore renewed tickets.
1163 [Adam Langley, Bodo Moeller (Google)]
1165 *) Fix PSK session representation.
1168 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
1170 This work was sponsored by Intel.
1173 *) Add GCM support to TLS library. Some custom code is needed to split
1174 the IV between the fixed (from PRF) and explicit (from TLS record)
1175 portions. This adds all GCM ciphersuites supported by RFC5288 and
1176 RFC5289. Generalise some AES* cipherstrings to include GCM and
1177 add a special AESGCM string for GCM only.
1180 *) Expand range of ctrls for AES GCM. Permit setting invocation
1181 field on decrypt and retrieval of invocation field only on encrypt.
1184 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
1185 As required by RFC5289 these ciphersuites cannot be used if for
1186 versions of TLS earlier than 1.2.
1189 *) For FIPS capable OpenSSL interpret a NULL default public key method
1190 as unset and return the appropriate default but do *not* set the default.
1191 This means we can return the appropriate method in applications that
1192 switch between FIPS and non-FIPS modes.
1195 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
1196 ENGINE is used then we cannot handle that in the FIPS module so we
1197 keep original code iff non-FIPS operations are allowed.
1200 *) Add -attime option to openssl utilities.
1201 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
1203 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
1206 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
1207 FIPS EC methods unconditionally for now.
1210 *) New build option no-ec2m to disable characteristic 2 code.
1213 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
1214 all cases can be covered as some introduce binary incompatibilities.
1217 *) Redirect RSA operations to FIPS module including keygen,
1218 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
1221 *) Add similar low level API blocking to ciphers.
1224 *) Low level digest APIs are not approved in FIPS mode: any attempt
1225 to use these will cause a fatal error. Applications that *really* want
1226 to use them can use the private_* version instead.
1229 *) Redirect cipher operations to FIPS module for FIPS builds.
1232 *) Redirect digest operations to FIPS module for FIPS builds.
1235 *) Update build system to add "fips" flag which will link in fipscanister.o
1236 for static and shared library builds embedding a signature if needed.
1239 *) Output TLS supported curves in preference order instead of numerical
1240 order. This is currently hardcoded for the highest order curves first.
1241 This should be configurable so applications can judge speed vs strength.
1244 *) Add TLS v1.2 server support for client authentication.
1247 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
1251 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
1252 FIPS modules versions.
1255 *) Add TLS v1.2 client side support for client authentication. Keep cache
1256 of handshake records longer as we don't know the hash algorithm to use
1257 until after the certificate request message is received.
1260 *) Initial TLS v1.2 client support. Add a default signature algorithms
1261 extension including all the algorithms we support. Parse new signature
1262 format in client key exchange. Relax some ECC signing restrictions for
1263 TLS v1.2 as indicated in RFC5246.
1266 *) Add server support for TLS v1.2 signature algorithms extension. Switch
1267 to new signature format when needed using client digest preference.
1268 All server ciphersuites should now work correctly in TLS v1.2. No client
1269 support yet and no support for client certificates.
1272 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
1273 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
1274 ciphersuites. At present only RSA key exchange ciphersuites work with
1275 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
1276 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
1277 and version checking.
1280 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
1281 with this defined it will not be affected by any changes to ssl internal
1282 structures. Add several utility functions to allow openssl application
1283 to work with OPENSSL_NO_SSL_INTERN defined.
1287 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1289 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1292 *) Permit abbreviated handshakes when renegotiating using the function
1293 SSL_renegotiate_abbreviated().
1294 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1296 *) Add call to ENGINE_register_all_complete() to
1297 ENGINE_load_builtin_engines(), so some implementations get used
1298 automatically instead of needing explicit application support.
1301 *) Add support for TLS key exporter as described in RFC5705.
1302 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1304 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1305 a few changes are required:
1307 Add SSL_OP_NO_TLSv1_1 flag.
1308 Add TLSv1_1 methods.
1309 Update version checking logic to handle version 1.1.
1310 Add explicit IV handling (ported from DTLS code).
1311 Add command line options to s_client/s_server.
1314 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
1316 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1318 This addresses the flaw in CBC record processing discovered by
1319 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1320 at: http://www.isg.rhul.ac.uk/tls/
1322 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1323 Security Group at Royal Holloway, University of London
1324 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1325 Emilia Käsper for the initial patch.
1327 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1329 *) Return an error when checking OCSP signatures when key is NULL.
1330 This fixes a DoS attack. (CVE-2013-0166)
1333 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1334 the right response is stapled. Also change SSL_get_certificate()
1335 so it returns the certificate actually sent.
1336 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1337 (This is a backport)
1338 [Rob Stradling <rob.stradling@comodo.com>]
1340 *) Fix possible deadlock when decoding public keys.
1343 Changes between 1.0.0i and 1.0.0j [10 May 2012]
1345 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
1348 *) Sanity check record length before skipping explicit IV in DTLS
1351 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1352 fuzzing as a service testing platform.
1356 *) Initialise tkeylen properly when encrypting CMS messages.
1357 Thanks to Solar Designer of Openwall for reporting this issue.
1360 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
1362 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1363 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1364 in CRYPTO_realloc_clean.
1366 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1367 issue and to Adam Langley <agl@chromium.org> for fixing it.
1369 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1371 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1373 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1374 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1375 content decryption and always return the same error. Note: this attack
1376 needs on average 2^20 messages so it only affects automated senders. The
1377 old behaviour can be reenabled in the CMS code by setting the
1378 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1379 an MMA defence is not necessary.
1380 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1381 this issue. (CVE-2012-0884)
1384 *) Fix CVE-2011-4619: make sure we really are receiving a
1385 client hello before rejecting multiple SGC restarts. Thanks to
1386 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1389 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1391 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1392 Thanks to Antonio Martin, Enterprise Secure Access Research and
1393 Development, Cisco Systems, Inc. for discovering this bug and
1394 preparing a fix. (CVE-2012-0050)
1397 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1399 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1400 of the Vaudenay padding oracle attack on CBC mode encryption
1401 which enables an efficient plaintext recovery attack against
1402 the OpenSSL implementation of DTLS. Their attack exploits timing
1403 differences arising during decryption processing. A research
1404 paper describing this attack can be found at:
1405 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1406 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1407 Security Group at Royal Holloway, University of London
1408 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1409 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1410 for preparing the fix. (CVE-2011-4108)
1411 [Robin Seggelmann, Michael Tuexen]
1413 *) Clear bytes used for block padding of SSL 3.0 records.
1415 [Adam Langley (Google)]
1417 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1418 Kadianakis <desnacked@gmail.com> for discovering this issue and
1419 Adam Langley for preparing the fix. (CVE-2011-4619)
1420 [Adam Langley (Google)]
1422 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1423 [Andrey Kulikov <amdeich@gmail.com>]
1425 *) Prevent malformed RFC3779 data triggering an assertion failure.
1426 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1427 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1428 [Rob Austein <sra@hactrn.net>]
1430 *) Improved PRNG seeding for VOS.
1431 [Paul Green <Paul.Green@stratus.com>]
1433 *) Fix ssl_ciph.c set-up race.
1434 [Adam Langley (Google)]
1436 *) Fix spurious failures in ecdsatest.c.
1437 [Emilia Käsper (Google)]
1439 *) Fix the BIO_f_buffer() implementation (which was mixing different
1440 interpretations of the '..._len' fields).
1441 [Adam Langley (Google)]
1443 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1444 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1445 threads won't reuse the same blinding coefficients.
1447 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1448 lock to call BN_BLINDING_invert_ex, and avoids one use of
1449 BN_BLINDING_update for each BN_BLINDING structure (previously,
1450 the last update always remained unused).
1451 [Emilia Käsper (Google)]
1453 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1454 [Bob Buckholz (Google)]
1456 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1458 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1459 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1460 [Kaspar Brand <ossl@velox.ch>]
1462 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1463 for multi-threaded use of ECDH. (CVE-2011-3210)
1464 [Adam Langley (Google)]
1466 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1469 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1470 signature public key algorithm by using OID xref utilities instead.
1471 Before this you could only use some ECC ciphersuites with SHA1 only.
1474 *) Add protection against ECDSA timing attacks as mentioned in the paper
1475 by Billy Bob Brumley and Nicola Tuveri, see:
1477 http://eprint.iacr.org/2011/232.pdf
1479 [Billy Bob Brumley and Nicola Tuveri]
1481 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1483 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1484 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1486 *) Fix bug in string printing code: if *any* escaping is enabled we must
1487 escape the escape character (backslash) or the resulting string is
1491 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1493 *) Disable code workaround for ancient and obsolete Netscape browsers
1494 and servers: an attacker can use it in a ciphersuite downgrade attack.
1495 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1498 *) Fixed J-PAKE implementation error, originally discovered by
1499 Sebastien Martini, further info and confirmation from Stefan
1500 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1503 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1505 *) Fix extension code to avoid race conditions which can result in a buffer
1506 overrun vulnerability: resumed sessions must not be modified as they can
1507 be shared by multiple threads. CVE-2010-3864
1510 *) Fix WIN32 build system to correctly link an ENGINE directory into
1514 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1516 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1518 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1520 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1522 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1523 context. The operation can be customised via the ctrl mechanism in
1524 case ENGINEs want to include additional functionality.
1527 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1530 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1531 output hashes compatible with older versions of OpenSSL.
1532 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1534 *) Fix compression algorithm handling: if resuming a session use the
1535 compression algorithm of the resumed session instead of determining
1536 it from client hello again. Don't allow server to change algorithm.
1539 *) Add load_crls() function to apps tidying load_certs() too. Add option
1540 to verify utility to allow additional CRLs to be included.
1543 *) Update OCSP request code to permit adding custom headers to the request:
1544 some responders need this.
1547 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1549 [Julia Lawall <julia@diku.dk>]
1551 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1552 needlessly dereferenced structures, used obsolete functions and
1553 didn't handle all updated verify codes correctly.
1556 *) Disable MD2 in the default configuration.
1559 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1560 indicate the initial BIO being pushed or popped. This makes it possible
1561 to determine whether the BIO is the one explicitly called or as a result
1562 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1563 it handles reference counts correctly and doesn't zero out the I/O bio
1564 when it is not being explicitly popped. WARNING: applications which
1565 included workarounds for the old buggy behaviour will need to be modified
1566 or they could free up already freed BIOs.
1569 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1570 renaming to all platforms (within the 0.9.8 branch, this was
1571 done conditionally on Netware platforms to avoid a name clash).
1572 [Guenter <lists@gknw.net>]
1574 *) Add ECDHE and PSK support to DTLS.
1575 [Michael Tuexen <tuexen@fh-muenster.de>]
1577 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1581 *) Add "missing" function EVP_MD_flags() (without this the only way to
1582 retrieve a digest flags is by accessing the structure directly. Update
1583 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1584 or cipher is registered as in the "from" argument. Print out all
1585 registered digests in the dgst usage message instead of manually
1586 attempting to work them out.
1589 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1590 this allows the use of compression and extensions. Change default cipher
1591 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1592 by default unless an application cipher string requests it.
1595 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1596 key ids to find matching certificates and keys but some PKCS#12 files
1597 don't follow the (somewhat unwritten) rules and this strategy fails.
1598 Now just gather all certificates together and the first private key
1599 then look for the first certificate that matches the key.
1602 *) Support use of registered digest and cipher names for dgst and cipher
1603 commands instead of having to add each one as a special case. So now
1610 openssl dgst -sha256 foo
1612 and this works for ENGINE based algorithms too.
1616 *) Update Gost ENGINE to support parameter files.
1617 [Victor B. Wagner <vitus@cryptocom.ru>]
1619 *) Support GeneralizedTime in ca utility.
1620 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1622 *) Enhance the hash format used for certificate directory links. The new
1623 form uses the canonical encoding (meaning equivalent names will work
1624 even if they aren't identical) and uses SHA1 instead of MD5. This form
1625 is incompatible with the older format and as a result c_rehash should
1626 be used to rebuild symbolic links.
1629 *) Make PKCS#8 the default write format for private keys, replacing the
1630 traditional format. This form is standardised, more secure and doesn't
1631 include an implicit MD5 dependency.
1634 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1635 committed to OpenSSL should pass this lot as a minimum.
1638 *) Add session ticket override functionality for use by EAP-FAST.
1639 [Jouni Malinen <j@w1.fi>]
1641 *) Modify HMAC functions to return a value. Since these can be implemented
1642 in an ENGINE errors can occur.
1645 *) Type-checked OBJ_bsearch_ex.
1648 *) Type-checked OBJ_bsearch. Also some constification necessitated
1649 by type-checking. Still to come: TXT_DB, bsearch(?),
1650 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1654 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1655 seconds to a tm structure directly, instead of going through OS
1656 specific date routines. This avoids any issues with OS routines such
1657 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1658 and X509_time_adj_ex() to cover the extended range. The existing
1659 X509_time_adj() is still usable and will no longer have any date issues.
1662 *) Delta CRL support. New use deltas option which will attempt to locate
1663 and search any appropriate delta CRLs available.
1665 This work was sponsored by Google.
1668 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1669 code and add additional score elements. Validate alternate CRL paths
1670 as part of the CRL checking and indicate a new error "CRL path validation
1671 error" in this case. Applications wanting additional details can use
1672 the verify callback and check the new "parent" field. If this is not
1673 NULL CRL path validation is taking place. Existing applications wont
1674 see this because it requires extended CRL support which is off by
1677 This work was sponsored by Google.
1680 *) Support for freshest CRL extension.
1682 This work was sponsored by Google.
1685 *) Initial indirect CRL support. Currently only supported in the CRLs
1686 passed directly and not via lookup. Process certificate issuer
1687 CRL entry extension and lookup CRL entries by bother issuer name
1688 and serial number. Check and process CRL issuer entry in IDP extension.
1690 This work was sponsored by Google.
1693 *) Add support for distinct certificate and CRL paths. The CRL issuer
1694 certificate is validated separately in this case. Only enabled if
1695 an extended CRL support flag is set: this flag will enable additional
1696 CRL functionality in future.
1698 This work was sponsored by Google.
1701 *) Add support for policy mappings extension.
1703 This work was sponsored by Google.
1706 *) Fixes to pathlength constraint, self issued certificate handling,
1707 policy processing to align with RFC3280 and PKITS tests.
1709 This work was sponsored by Google.
1712 *) Support for name constraints certificate extension. DN, email, DNS
1713 and URI types are currently supported.
1715 This work was sponsored by Google.
1718 *) To cater for systems that provide a pointer-based thread ID rather
1719 than numeric, deprecate the current numeric thread ID mechanism and
1720 replace it with a structure and associated callback type. This
1721 mechanism allows a numeric "hash" to be extracted from a thread ID in
1722 either case, and on platforms where pointers are larger than 'long',
1723 mixing is done to help ensure the numeric 'hash' is usable even if it
1724 can't be guaranteed unique. The default mechanism is to use "&errno"
1725 as a pointer-based thread ID to distinguish between threads.
1727 Applications that want to provide their own thread IDs should now use
1728 CRYPTO_THREADID_set_callback() to register a callback that will call
1729 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1731 Note that ERR_remove_state() is now deprecated, because it is tied
1732 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1733 to free the current thread's error state should be replaced by
1734 ERR_remove_thread_state(NULL).
1736 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1737 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1738 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1739 application was previously providing a numeric thread callback that
1740 was inappropriate for distinguishing threads, then uniqueness might
1741 have been obtained with &errno that happened immediately in the
1742 intermediate development versions of OpenSSL; this is no longer the
1743 case, the numeric thread callback will now override the automatic use
1745 [Geoff Thorpe, with help from Bodo Moeller]
1747 *) Initial support for different CRL issuing certificates. This covers a
1748 simple case where the self issued certificates in the chain exist and
1749 the real CRL issuer is higher in the existing chain.
1751 This work was sponsored by Google.
1754 *) Removed effectively defunct crypto/store from the build.
1757 *) Revamp of STACK to provide stronger type-checking. Still to come:
1758 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1759 ASN1_STRING, CONF_VALUE.
1762 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1763 RAM on SSL connections. This option can save about 34k per idle SSL.
1766 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1767 STACK, TXT_DB, bsearch, qsort.
1770 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1771 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1772 support for data, signedData, compressedData, digestedData and
1773 encryptedData, envelopedData types included. Scripts to check against
1774 RFC4134 examples draft and interop and consistency checks of many
1775 content types and variants.
1778 *) Add options to enc utility to support use of zlib compression BIO.
1781 *) Extend mk1mf to support importing of options and assembly language
1782 files from Configure script, currently only included in VC-WIN32.
1783 The assembly language rules can now optionally generate the source
1784 files from the associated perl scripts.
1787 *) Implement remaining functionality needed to support GOST ciphersuites.
1788 Interop testing has been performed using CryptoPro implementations.
1789 [Victor B. Wagner <vitus@cryptocom.ru>]
1791 *) s390x assembler pack.
1794 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1798 *) Implement Opaque PRF Input TLS extension as specified in
1799 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1800 official specification yet and no extension type assignment by
1801 IANA exists, this extension (for now) will have to be explicitly
1802 enabled when building OpenSSL by providing the extension number
1803 to use. For example, specify an option
1805 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1807 to the "config" or "Configure" script to enable the extension,
1808 assuming extension number 0x9527 (which is a completely arbitrary
1809 and unofficial assignment based on the MD5 hash of the Internet
1810 Draft). Note that by doing so, you potentially lose
1811 interoperability with other TLS implementations since these might
1812 be using the same extension number for other purposes.
1814 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1815 opaque PRF input value to use in the handshake. This will create
1816 an interal copy of the length-'len' string at 'src', and will
1817 return non-zero for success.
1819 To get more control and flexibility, provide a callback function
1822 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1823 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1827 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1830 Callback function 'cb' will be called in handshakes, and is
1831 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1832 Argument 'arg' is for application purposes (the value as given to
1833 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1834 be provided to the callback function). The callback function
1835 has to return non-zero to report success: usually 1 to use opaque
1836 PRF input just if possible, or 2 to enforce use of the opaque PRF
1837 input. In the latter case, the library will abort the handshake
1838 if opaque PRF input is not successfully negotiated.
1840 Arguments 'peerinput' and 'len' given to the callback function
1841 will always be NULL and 0 in the case of a client. A server will
1842 see the client's opaque PRF input through these variables if
1843 available (NULL and 0 otherwise). Note that if the server
1844 provides an opaque PRF input, the length must be the same as the
1845 length of the client's opaque PRF input.
1847 Note that the callback function will only be called when creating
1848 a new session (session resumption can resume whatever was
1849 previously negotiated), and will not be called in SSL 2.0
1850 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1851 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1852 for applications that need to enforce opaque PRF input.
1856 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1859 [Victor B. Wagner <vitus@cryptocom.ru>]
1861 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1862 RFC4507bis. The encrypted ticket format is an encrypted encoded
1863 SSL_SESSION structure, that way new session features are automatically
1866 If a client application caches session in an SSL_SESSION structure
1867 support is transparent because tickets are now stored in the encoded
1870 The SSL_CTX structure automatically generates keys for ticket
1871 protection in servers so again support should be possible
1872 with no application modification.
1874 If a client or server wishes to disable RFC4507 support then the option
1875 SSL_OP_NO_TICKET can be set.
1877 Add a TLS extension debugging callback to allow the contents of any client
1878 or server extensions to be examined.
1880 This work was sponsored by Google.
1883 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1884 OpenSSL should now compile cleanly on gcc 4.2
1885 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1887 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1888 support including streaming MAC support: this is required for GOST
1889 ciphersuite support.
1890 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1892 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1893 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1894 to output in BER and PEM format.
1897 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1898 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1899 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1900 ENGINE support for HMAC keys which are unextractable. New -mac and
1901 -macopt options to dgst utility.
1904 *) New option -sigopt to dgst utility. Update dgst to use
1905 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1906 alternative signing paramaters such as X9.31 or PSS in the dgst
1910 *) Change ssl_cipher_apply_rule(), the internal function that does
1911 the work each time a ciphersuite string requests enabling
1912 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1913 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1914 the order of disabled ciphersuites such that those ciphersuites
1915 that most recently went from enabled to disabled not only stay
1916 in order with respect to each other, but also have higher priority
1917 than other disabled ciphersuites the next time ciphersuites are
1920 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1921 the same ciphersuites as with "HIGH" alone, but in a specific
1922 order where the PSK ciphersuites come first (since they are the
1923 most recently disabled ciphersuites when "HIGH" is parsed).
1925 Also, change ssl_create_cipher_list() (using this new
1926 funcionality) such that between otherwise identical
1927 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1931 *) Change ssl_create_cipher_list() so that it automatically
1932 arranges the ciphersuites in reasonable order before starting
1933 to process the rule string. Thus, the definition for "DEFAULT"
1934 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1935 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1936 This makes it much easier to arrive at a reasonable default order
1937 in applications for which anonymous ciphers are OK (meaning
1938 that you can't actually use DEFAULT).
1939 [Bodo Moeller; suggested by Victor Duchovni]
1941 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1942 processing) into multiple integers instead of setting
1943 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1944 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1945 (These masks as well as the individual bit definitions are hidden
1946 away into the non-exported interface ssl/ssl_locl.h, so this
1947 change to the definition of the SSL_CIPHER structure shouldn't
1948 affect applications.) This give us more bits for each of these
1949 categories, so there is no longer a need to coagulate AES128 and
1950 AES256 into a single algorithm bit, and to coagulate Camellia128
1951 and Camellia256 into a single algorithm bit, which has led to all
1954 Thus, among other things, the kludge introduced in 0.9.7m and
1955 0.9.8e for masking out AES256 independently of AES128 or masking
1956 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1958 With the change, we also introduce new ciphersuite aliases that
1959 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1963 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1964 Use the leftmost N bytes of the signature input if the input is
1965 larger than the prime q (with N being the size in bytes of q).
1968 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1969 it yet and it is largely untested.
1972 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1975 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1976 some compilers (gcc 4.2 and later) reject their use. Safestack is
1977 reimplemented. Update ASN1 to avoid use of legacy functions.
1980 *) Win32/64 targets are linked with Winsock2.
1983 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1984 to external functions. This can be used to increase CRL handling
1985 efficiency especially when CRLs are very large by (for example) storing
1986 the CRL revoked certificates in a database.
1989 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1990 new CRLs added to a directory can be used. New command line option
1991 -verify_return_error to s_client and s_server. This causes real errors
1992 to be returned by the verify callback instead of carrying on no matter
1993 what. This reflects the way a "real world" verify callback would behave.
1996 *) GOST engine, supporting several GOST algorithms and public key formats.
1997 Kindly donated by Cryptocom.
2000 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2001 partitioned by DP are handled but no indirect CRL or reason partitioning
2002 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2003 selected via a scoring technique which handles IDP and AKID in CRLs.
2006 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2007 will ultimately be used for all verify operations: this will remove the
2008 X509_STORE dependency on certificate verification and allow alternative
2009 lookup methods. X509_STORE based implementations of these two callbacks.
2012 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2013 Modify get_crl() to find a valid (unexpired) CRL if possible.
2016 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2017 this would be called X509_CRL_cmp() but that name is already used by
2018 a function that just compares CRL issuer names. Cache several CRL
2019 extensions in X509_CRL structure and cache CRLDP in X509.
2022 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2023 this maps equivalent X509_NAME structures into a consistent structure.
2024 Name comparison can then be performed rapidly using memcmp().
2027 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2031 *) Allow digests to supply their own micalg string for S/MIME type using
2032 the ctrl EVP_MD_CTRL_MICALG.
2035 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2036 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2037 ctrl. It can then customise the structure before and/or after signing
2041 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2042 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2043 to free up any added signature OIDs.
2046 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2047 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2048 digest and cipher tables. New options added to openssl utility:
2049 list-message-digest-algorithms and list-cipher-algorithms.
2052 *) Change the array representation of binary polynomials: the list
2053 of degrees of non-zero coefficients is now terminated with -1.
2054 Previously it was terminated with 0, which was also part of the
2055 value; thus, the array representation was not applicable to
2056 polynomials where t^0 has coefficient zero. This change makes
2057 the array representation useful in a more general context.
2060 *) Various modifications and fixes to SSL/TLS cipher string
2061 handling. For ECC, the code now distinguishes between fixed ECDH
2062 with RSA certificates on the one hand and with ECDSA certificates
2063 on the other hand, since these are separate ciphersuites. The
2064 unused code for Fortezza ciphersuites has been removed.
2066 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2067 (not "ECDHE"). For consistency with the code for DH
2068 certificates, use of ECDH certificates is now considered ECDH
2069 authentication, not RSA or ECDSA authentication (the latter is
2070 merely the CA's signing algorithm and not actively used in the
2073 The temporary ciphersuite alias "ECCdraft" is no longer
2074 available, and ECC ciphersuites are no longer excluded from "ALL"
2075 and "DEFAULT". The following aliases now exist for RFC 4492
2076 ciphersuites, most of these by analogy with the DH case:
2078 kECDHr - ECDH cert, signed with RSA
2079 kECDHe - ECDH cert, signed with ECDSA
2080 kECDH - ECDH cert (signed with either RSA or ECDSA)
2081 kEECDH - ephemeral ECDH
2082 ECDH - ECDH cert or ephemeral ECDH
2088 AECDH - anonymous ECDH
2089 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2093 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2094 Use correct micalg parameters depending on digest(s) in signed message.
2097 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2098 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2101 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2102 an engine to register a method. Add ENGINE lookups for methods and
2103 functional reference processing.
2106 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2107 EVP_{Sign,Verify}* which allow an application to customise the signature
2111 *) New -resign option to smime utility. This adds one or more signers
2112 to an existing PKCS#7 signedData structure. Also -md option to use an
2113 alternative message digest algorithm for signing.
2116 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2117 create PKCS7 structures containing multiple signers. Update smime
2118 application to support multiple signers.
2121 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2125 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2126 Reorganize PBE internals to lookup from a static table using NIDs,
2127 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2128 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2129 PRF which will be automatically used with PBES2.
2132 *) Replace the algorithm specific calls to generate keys in "req" with the
2136 *) Update PKCS#7 enveloped data routines to use new API. This is now
2137 supported by any public key method supporting the encrypt operation. A
2138 ctrl is added to allow the public key algorithm to examine or modify
2139 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2143 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2144 a default digest type to use. In most cases this will be SHA1 but some
2145 algorithms (such as GOST) need to specify an alternative digest. The
2146 return value indicates how strong the preference is 1 means optional and
2147 2 is mandatory (that is it is the only supported type). Modify
2148 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2149 use the default md. Update openssl utilities to use the default digest
2150 type for signing if it is not explicitly indicated.
2153 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2154 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2155 signing method from the key type. This effectively removes the link
2156 between digests and public key types.
2159 *) Add an OID cross reference table and utility functions. Its purpose is to
2160 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2161 rsaEncryption. This will allow some of the algorithm specific hackery
2162 needed to use the correct OID to be removed.
2165 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
2166 structures for PKCS7_sign(). They are now set up by the relevant public
2170 *) Add provisional EC pkey method with support for ECDSA and ECDH.
2173 *) Add support for key derivation (agreement) in the API, DH method and
2177 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
2178 public and private key formats. As a side effect these add additional
2179 command line functionality not previously available: DSA signatures can be
2180 generated and verified using pkeyutl and DH key support and generation in
2185 [Oliver Tappe <zooey@hirschkaefer.de>]
2187 *) New make target "install_html_docs" installs HTML renditions of the
2189 [Oliver Tappe <zooey@hirschkaefer.de>]
2191 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
2192 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
2193 support key and parameter generation and add initial key generation
2194 functionality for RSA.
2197 *) Add functions for main EVP_PKEY_method operations. The undocumented
2198 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
2199 EVP_PKEY_{encrypt,decrypt}_old.
2202 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
2203 key API, doesn't do much yet.
2206 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
2207 public key algorithms. New option to openssl utility:
2208 "list-public-key-algorithms" to print out info.
2211 *) Implement the Supported Elliptic Curves Extension for
2212 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2215 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
2216 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
2219 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
2220 utilities such as rsa, dsa, dsaparam etc except they process any key
2224 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
2225 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
2226 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
2230 *) Initial support for pluggable public key ASN1.
2231 De-spaghettify the public key ASN1 handling. Move public and private
2232 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
2233 algorithm specific handling to a single module within the relevant
2234 algorithm directory. Add functions to allow (near) opaque processing
2235 of public and private key structures.
2238 *) Implement the Supported Point Formats Extension for
2239 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
2242 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
2243 for the psk identity [hint] and the psk callback functions to the
2244 SSL_SESSION, SSL and SSL_CTX structure.
2247 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
2251 SSL_CTX_use_psk_identity_hint
2252 SSL_get_psk_identity_hint
2253 SSL_get_psk_identity
2254 SSL_use_psk_identity_hint
2256 [Mika Kousa and Pasi Eronen of Nokia Corporation]
2258 *) Add RFC 3161 compliant time stamp request creation, response generation
2259 and response verification functionality.
2260 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
2262 *) Add initial support for TLS extensions, specifically for the server_name
2263 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2264 have new members for a host name. The SSL data structure has an
2265 additional member SSL_CTX *initial_ctx so that new sessions can be
2266 stored in that context to allow for session resumption, even after the
2267 SSL has been switched to a new SSL_CTX in reaction to a client's
2268 server_name extension.
2270 New functions (subject to change):
2272 SSL_get_servername()
2273 SSL_get_servername_type()
2276 New CTRL codes and macros (subject to change):
2278 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2279 - SSL_CTX_set_tlsext_servername_callback()
2280 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2281 - SSL_CTX_set_tlsext_servername_arg()
2282 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2284 openssl s_client has a new '-servername ...' option.
2286 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2287 '-key2 ...', '-servername_fatal' (subject to change). This allows
2288 testing the HostName extension for a specific single host name ('-cert'
2289 and '-key' remain fallbacks for handshakes without HostName
2290 negotiation). If the unrecognized_name alert has to be sent, this by
2291 default is a warning; it becomes fatal with the '-servername_fatal'
2294 [Peter Sylvester, Remy Allais, Christophe Renou]
2296 *) Whirlpool hash implementation is added.
2299 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2300 bn(64,32). Because of instruction set limitations it doesn't have
2301 any negative impact on performance. This was done mostly in order
2302 to make it possible to share assembler modules, such as bn_mul_mont
2303 implementations, between 32- and 64-bit builds without hassle.
2306 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2307 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2311 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2312 dedicated Montgomery multiplication procedure, is introduced.
2313 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2314 "64-bit" performance on certain 32-bit targets.
2317 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2318 in SSL structures. New SSL ctrl to set maximum send fragment size.
2319 Save memory by seeting the I/O buffer sizes dynamically instead of
2320 using the maximum available value.
2323 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2324 in addition to the text details.
2327 *) Very, very preliminary EXPERIMENTAL support for printing of general
2328 ASN1 structures. This currently produces rather ugly output and doesn't
2329 handle several customised structures at all.
2332 *) Integrated support for PVK file format and some related formats such
2333 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2334 these in the 'rsa' and 'dsa' utilities.
2337 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2340 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2341 place for the (very old) "NETSCAPE" format certificates which are now
2342 handled using new ASN1 code equivalents.
2345 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2346 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2347 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2350 *) Modify CRL distribution points extension code to print out previously
2351 unsupported fields. Enhance extension setting code to allow setting of
2355 *) Add print and set support for Issuing Distribution Point CRL extension.
2358 *) Change 'Configure' script to enable Camellia by default.
2361 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
2363 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
2365 This addresses the flaw in CBC record processing discovered by
2366 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
2367 at: http://www.isg.rhul.ac.uk/tls/
2369 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2370 Security Group at Royal Holloway, University of London
2371 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
2372 Emilia Käsper for the initial patch.
2374 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
2376 *) Return an error when checking OCSP signatures when key is NULL.
2377 This fixes a DoS attack. (CVE-2013-0166)
2380 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
2381 the right response is stapled. Also change SSL_get_certificate()
2382 so it returns the certificate actually sent.
2383 See http://rt.openssl.org/Ticket/Display.html?id=2836.
2384 (This is a backport)
2385 [Rob Stradling <rob.stradling@comodo.com>]
2387 *) Fix possible deadlock when decoding public keys.
2390 Changes between 0.9.8w and 0.9.8x [10 May 2012]
2392 *) Sanity check record length before skipping explicit IV in DTLS
2395 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
2396 fuzzing as a service testing platform.
2400 *) Initialise tkeylen properly when encrypting CMS messages.
2401 Thanks to Solar Designer of Openwall for reporting this issue.
2404 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
2406 *) The fix for CVE-2012-2110 did not take into account that the
2407 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
2408 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
2409 rejecting negative len parameter. (CVE-2012-2131)
2410 [Tomas Hoger <thoger@redhat.com>]
2412 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
2414 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2415 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2416 in CRYPTO_realloc_clean.
2418 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2419 issue and to Adam Langley <agl@chromium.org> for fixing it.
2421 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2423 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
2425 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2426 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2427 content decryption and always return the same error. Note: this attack
2428 needs on average 2^20 messages so it only affects automated senders. The
2429 old behaviour can be reenabled in the CMS code by setting the
2430 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2431 an MMA defence is not necessary.
2432 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2433 this issue. (CVE-2012-0884)
2436 *) Fix CVE-2011-4619: make sure we really are receiving a
2437 client hello before rejecting multiple SGC restarts. Thanks to
2438 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2441 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
2443 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2444 Thanks to Antonio Martin, Enterprise Secure Access Research and
2445 Development, Cisco Systems, Inc. for discovering this bug and
2446 preparing a fix. (CVE-2012-0050)
2449 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
2451 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2452 of the Vaudenay padding oracle attack on CBC mode encryption
2453 which enables an efficient plaintext recovery attack against
2454 the OpenSSL implementation of DTLS. Their attack exploits timing
2455 differences arising during decryption processing. A research
2456 paper describing this attack can be found at:
2457 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2458 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2459 Security Group at Royal Holloway, University of London
2460 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2461 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2462 for preparing the fix. (CVE-2011-4108)
2463 [Robin Seggelmann, Michael Tuexen]
2465 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
2466 [Ben Laurie, Kasper <ekasper@google.com>]
2468 *) Clear bytes used for block padding of SSL 3.0 records.
2470 [Adam Langley (Google)]
2472 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2473 Kadianakis <desnacked@gmail.com> for discovering this issue and
2474 Adam Langley for preparing the fix. (CVE-2011-4619)
2475 [Adam Langley (Google)]
2477 *) Prevent malformed RFC3779 data triggering an assertion failure.
2478 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2479 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2480 [Rob Austein <sra@hactrn.net>]
2482 *) Fix ssl_ciph.c set-up race.
2483 [Adam Langley (Google)]
2485 *) Fix spurious failures in ecdsatest.c.
2486 [Emilia Käsper (Google)]
2488 *) Fix the BIO_f_buffer() implementation (which was mixing different
2489 interpretations of the '..._len' fields).
2490 [Adam Langley (Google)]
2492 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2493 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2494 threads won't reuse the same blinding coefficients.
2496 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2497 lock to call BN_BLINDING_invert_ex, and avoids one use of
2498 BN_BLINDING_update for each BN_BLINDING structure (previously,
2499 the last update always remained unused).
2500 [Emilia Käsper (Google)]
2502 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2503 for multi-threaded use of ECDH.
2504 [Adam Langley (Google)]
2506 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2509 *) Add protection against ECDSA timing attacks as mentioned in the paper
2510 by Billy Bob Brumley and Nicola Tuveri, see:
2512 http://eprint.iacr.org/2011/232.pdf
2514 [Billy Bob Brumley and Nicola Tuveri]
2516 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2518 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2519 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2521 *) Fix bug in string printing code: if *any* escaping is enabled we must
2522 escape the escape character (backslash) or the resulting string is
2526 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2528 *) Disable code workaround for ancient and obsolete Netscape browsers
2529 and servers: an attacker can use it in a ciphersuite downgrade attack.
2530 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2533 *) Fixed J-PAKE implementation error, originally discovered by
2534 Sebastien Martini, further info and confirmation from Stefan
2535 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2538 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2540 *) Fix extension code to avoid race conditions which can result in a buffer
2541 overrun vulnerability: resumed sessions must not be modified as they can
2542 be shared by multiple threads. CVE-2010-3864
2545 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2548 *) Don't reencode certificate when calculating signature: cache and use
2549 the original encoding instead. This makes signature verification of
2550 some broken encodings work correctly.
2553 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2554 is also one of the inputs.
2555 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2557 *) Don't repeatedly append PBE algorithms to table if they already exist.
2558 Sort table on each new add. This effectively makes the table read only
2559 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2563 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2565 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2568 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2569 access or freeing data twice (CVE-2010-0742)
2570 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2572 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2573 common in certificates and some applications which only call
2574 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2578 Reduce copying into .apps and .test in makevms.com
2579 Don't try to use blank CA certificate in CA.com
2580 Allow use of C files from original directories in maketests.com
2581 [Steven M. Schweda" <sms@antinode.info>]
2583 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2585 *) When rejecting SSL/TLS records due to an incorrect version number, never
2586 update s->server with a new major version number. As of
2587 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2588 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2589 the previous behavior could result in a read attempt at NULL when
2590 receiving specific incorrect SSL/TLS records once record payload
2591 protection is active. (CVE-2010-0740)
2592 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2594 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2595 could be crashed if the relevant tables were not present (e.g. chrooted).
2596 [Tomas Hoger <thoger@redhat.com>]
2598 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2600 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2601 [Martin Olsson, Neel Mehta]
2603 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2604 accommodate for stack sorting, always a write lock!).
2607 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2608 excessive delays in the RAND_poll(): over a minute. As a workaround
2609 include a time check in the inner Heap32Next loop too.
2612 *) The code that handled flushing of data in SSL/TLS originally used the
2613 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2614 the problem outlined in PR#1949. The fix suggested there however can
2615 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2616 of Apache). So instead simplify the code to flush unconditionally.
2617 This should be fine since flushing with no data to flush is a no op.
2620 *) Handle TLS versions 2.0 and later properly and correctly use the
2621 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2622 off ancient servers have a habit of sticking around for a while...
2625 *) Modify compression code so it frees up structures without using the
2626 ex_data callbacks. This works around a problem where some applications
2627 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2628 restarting) then use compression (e.g. SSL with compression) later.
2629 This results in significant per-connection memory leaks and
2630 has caused some security issues including CVE-2008-1678 and
2634 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2635 change when encrypting or decrypting.
2638 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2639 connect and renegotiate with servers which do not support RI.
2640 Until RI is more widely deployed this option is enabled by default.
2643 *) Add "missing" ssl ctrls to clear options and mode.
2646 *) If client attempts to renegotiate and doesn't support RI respond with
2647 a no_renegotiation alert as required by RFC5746. Some renegotiating
2648 TLS clients will continue a connection gracefully when they receive
2649 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2650 waiting for a server hello which it will never receive. Now we treat a
2651 received no_renegotiation alert as a fatal error. This is because
2652 applications requesting a renegotiation might well expect it to succeed
2653 and would have no code in place to handle the server denying it so the
2654 only safe thing to do is to terminate the connection.
2657 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2658 peer supports secure renegotiation and 0 otherwise. Print out peer
2659 renegotiation support in s_client/s_server.
2662 *) Replace the highly broken and deprecated SPKAC certification method with
2663 the updated NID creation version. This should correctly handle UTF8.
2666 *) Implement RFC5746. Re-enable renegotiation but require the extension
2667 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2668 turns out to be a bad idea. It has been replaced by
2669 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2670 SSL_CTX_set_options(). This is really not recommended unless you
2671 know what you are doing.
2672 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2674 *) Fixes to stateless session resumption handling. Use initial_ctx when
2675 issuing and attempting to decrypt tickets in case it has changed during
2676 servername handling. Use a non-zero length session ID when attempting
2677 stateless session resumption: this makes it possible to determine if
2678 a resumption has occurred immediately after receiving server hello
2679 (several places in OpenSSL subtly assume this) instead of later in
2683 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2684 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2685 fixes for a few places where the return code is not checked
2687 [Julia Lawall <julia@diku.dk>]
2689 *) Add --strict-warnings option to Configure script to include devteam
2690 warnings in other configurations.
2693 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2694 makes it possible to install openssl libraries in locations which
2695 have names other than "lib", for example "/usr/lib64" which some
2697 [Steve Henson, based on patch from Jeremy Utley]
2699 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2700 X690 8.9.12 and can produce some misleading textual output of OIDs.
2701 [Steve Henson, reported by Dan Kaminsky]
2703 *) Delete MD2 from algorithm tables. This follows the recommendation in
2704 several standards that it is not used in new applications due to
2705 several cryptographic weaknesses. For binary compatibility reasons
2706 the MD2 API is still compiled in by default.
2709 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2713 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2714 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2716 [Guenter <lists@gknw.net>]
2718 *) Fix the server certificate chain building code to use X509_verify_cert(),
2719 it used to have an ad-hoc builder which was unable to cope with anything
2720 other than a simple chain.
2721 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2723 *) Don't check self signed certificate signatures in X509_verify_cert()
2724 by default (a flag can override this): it just wastes time without
2725 adding any security. As a useful side effect self signed root CAs
2726 with non-FIPS digests are now usable in FIPS mode.
2729 *) In dtls1_process_out_of_seq_message() the check if the current message
2730 is already buffered was missing. For every new message was memory
2731 allocated, allowing an attacker to perform an denial of service attack
2732 with sending out of seq handshake messages until there is no memory
2733 left. Additionally every future messege was buffered, even if the
2734 sequence number made no sense and would be part of another handshake.
2735 So only messages with sequence numbers less than 10 in advance will be
2736 buffered. (CVE-2009-1378)
2737 [Robin Seggelmann, discovered by Daniel Mentz]
2739 *) Records are buffered if they arrive with a future epoch to be
2740 processed after finishing the corresponding handshake. There is
2741 currently no limitation to this buffer allowing an attacker to perform
2742 a DOS attack with sending records with future epochs until there is no
2743 memory left. This patch adds the pqueue_size() function to determine
2744 the size of a buffer and limits the record buffer to 100 entries.
2746 [Robin Seggelmann, discovered by Daniel Mentz]
2748 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2749 parent structure is freed. (CVE-2009-1379)
2752 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2753 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2756 [Ilya O. <vrghost@gmail.com>]
2758 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2760 *) Disable renegotiation completely - this fixes a severe security
2761 problem (CVE-2009-3555) at the cost of breaking all
2762 renegotiation. Renegotiation can be re-enabled by setting
2763 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2764 run-time. This is really not recommended unless you know what
2768 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2770 *) Don't set val to NULL when freeing up structures, it is freed up by
2771 underlying code. If sizeof(void *) > sizeof(long) this can result in
2772 zeroing past the valid field. (CVE-2009-0789)
2773 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2775 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2776 checked correctly. This would allow some invalid signed attributes to
2777 appear to verify correctly. (CVE-2009-0591)
2778 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2780 *) Reject UniversalString and BMPString types with invalid lengths. This
2781 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2782 a legal length. (CVE-2009-0590)
2785 *) Set S/MIME signing as the default purpose rather than setting it
2786 unconditionally. This allows applications to override it at the store
2790 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2791 to handle some structures.
2794 *) Improve efficiency of mem_gets: don't search whole buffer each time
2796 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2798 *) New -hex option for openssl rand.
2801 *) Print out UTF8String and NumericString when parsing ASN1.
2804 *) Support NumericString type for name components.
2807 *) Allow CC in the environment to override the automatically chosen
2808 compiler. Note that nothing is done to ensure flags work with the
2812 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2814 *) Properly check EVP_VerifyFinal() and similar return values
2816 [Ben Laurie, Bodo Moeller, Google Security Team]
2818 *) Enable TLS extensions by default.
2821 *) Allow the CHIL engine to be loaded, whether the application is
2822 multithreaded or not. (This does not release the developer from the
2823 obligation to set up the dynamic locking callbacks.)
2824 [Sander Temme <sander@temme.net>]
2826 *) Use correct exit code if there is an error in dgst command.
2827 [Steve Henson; problem pointed out by Roland Dirlewanger]
2829 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2830 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2833 *) Add experimental JPAKE support, including demo authentication in
2834 s_client and s_server.
2837 *) Set the comparison function in v3_addr_canonize().
2838 [Rob Austein <sra@hactrn.net>]
2840 *) Add support for XMPP STARTTLS in s_client.
2841 [Philip Paeps <philip@freebsd.org>]
2843 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2844 to ensure that even with this option, only ciphersuites in the
2845 server's preference list will be accepted. (Note that the option
2846 applies only when resuming a session, so the earlier behavior was
2847 just about the algorithm choice for symmetric cryptography.)
2850 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2852 *) Fix NULL pointer dereference if a DTLS server received
2853 ChangeCipherSpec as first record (CVE-2009-1386).
2856 *) Fix a state transition in s3_srvr.c and d1_srvr.c
2857 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2860 *) The fix in 0.9.8c that supposedly got rid of unsafe
2861 double-checked locking was incomplete for RSA blinding,
2862 addressing just one layer of what turns out to have been
2863 doubly unsafe triple-checked locking.
2865 So now fix this for real by retiring the MONT_HELPER macro
2866 in crypto/rsa/rsa_eay.c.
2868 [Bodo Moeller; problem pointed out by Marius Schilder]
2870 *) Various precautionary measures:
2872 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2874 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2875 (NB: This would require knowledge of the secret session ticket key
2876 to exploit, in which case you'd be SOL either way.)
2878 - Change bn_nist.c so that it will properly handle input BIGNUMs
2879 outside the expected range.
2881 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2884 [Neel Mehta, Bodo Moeller]
2886 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2887 the load fails. Useful for distros.
2888 [Ben Laurie and the FreeBSD team]
2890 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2893 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2896 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2898 This work was sponsored by Logica.
2901 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2902 keystores. Support for SSL/TLS client authentication too.
2903 Not compiled unless enable-capieng specified to Configure.
2905 This work was sponsored by Logica.
2908 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2909 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2910 attribute creation routines such as certifcate requests and PKCS#12
2914 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2916 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2917 handshake which could lead to a cilent crash as found using the
2918 Codenomicon TLS test suite (CVE-2008-1672)
2919 [Steve Henson, Mark Cox]
2921 *) Fix double free in TLS server name extensions which could lead to
2922 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2925 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2927 Clear the error queue to ensure that error entries left from
2928 older function calls do not interfere with the correct operation.
2929 [Lutz Jaenicke, Erik de Castro Lopo]
2931 *) Remove root CA certificates of commercial CAs:
2933 The OpenSSL project does not recommend any specific CA and does not
2934 have any policy with respect to including or excluding any CA.
2935 Therefore it does not make any sense to ship an arbitrary selection
2936 of root CA certificates with the OpenSSL software.
2939 *) RSA OAEP patches to fix two separate invalid memory reads.
2940 The first one involves inputs when 'lzero' is greater than
2941 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2942 before the beginning of from). The second one involves inputs where
2943 the 'db' section contains nothing but zeroes (there is a one-byte
2944 invalid read after the end of 'db').
2945 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2947 *) Partial backport from 0.9.9-dev:
2949 Introduce bn_mul_mont (dedicated Montgomery multiplication
2950 procedure) as a candidate for BIGNUM assembler implementation.
2951 While 0.9.9-dev uses assembler for various architectures, only
2952 x86_64 is available by default here in the 0.9.8 branch, and
2953 32-bit x86 is available through a compile-time setting.
2955 To try the 32-bit x86 assembler implementation, use Configure
2956 option "enable-montasm" (which exists only for this backport).
2958 As "enable-montasm" for 32-bit x86 disclaims code stability
2959 anyway, in this constellation we activate additional code
2960 backported from 0.9.9-dev for further performance improvements,
2961 namely BN_from_montgomery_word. (To enable this otherwise,
2962 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2964 [Andy Polyakov (backport partially by Bodo Moeller)]
2966 *) Add TLS session ticket callback. This allows an application to set
2967 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2968 values. This is useful for key rollover for example where several key
2969 sets may exist with different names.
2972 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2973 This was broken until now in 0.9.8 releases, such that the only way
2974 a registered ENGINE could be used (assuming it initialises
2975 successfully on the host) was to explicitly set it as the default
2976 for the relevant algorithms. This is in contradiction with 0.9.7
2977 behaviour and the documentation. With this fix, when an ENGINE is
2978 registered into a given algorithm's table of implementations, the
2979 'uptodate' flag is reset so that auto-discovery will be used next
2980 time a new context for that algorithm attempts to select an
2982 [Ian Lister (tweaked by Geoff Thorpe)]
2984 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2985 implemention in the following ways:
2987 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2990 Lack of BER streaming support means one pass streaming processing is
2991 only supported if data is detached: setting the streaming flag is
2992 ignored for embedded content.
2994 CMS support is disabled by default and must be explicitly enabled
2995 with the enable-cms configuration option.
2998 *) Update the GMP engine glue to do direct copies between BIGNUM and
2999 mpz_t when openssl and GMP use the same limb size. Otherwise the
3000 existing "conversion via a text string export" trick is still used.
3001 [Paul Sheer <paulsheer@gmail.com>]
3003 *) Zlib compression BIO. This is a filter BIO which compressed and
3004 uncompresses any data passed through it.
3007 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3008 RFC3394 compatible AES key wrapping.
3011 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3012 sets string data without copying. X509_ALGOR_set0() and
3013 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3014 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3015 from an X509_ATTRIBUTE structure optionally checking it occurs only
3016 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3020 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3021 to get the expected BN_FLG_CONSTTIME behavior.
3022 [Bodo Moeller (Google)]
3026 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3027 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3028 - added some more tests to do_tests.pl
3029 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3030 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3031 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3032 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3033 - various changes to netware.pl to enable gcc-cross builds on Win32
3035 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3036 - various changes to fix missing prototype warnings
3037 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3038 - added AES, WHIRLPOOL and CPUID assembler code to build files
3039 - added missing AES assembler make rules to mk1mf.pl
3040 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3041 [Guenter Knauf <eflash@gmx.net>]
3043 *) Implement certificate status request TLS extension defined in RFC3546.
3044 A client can set the appropriate parameters and receive the encoded
3045 OCSP response via a callback. A server can query the supplied parameters
3046 and set the encoded OCSP response in the callback. Add simplified examples
3047 to s_client and s_server.
3050 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3052 *) Fix various bugs:
3053 + Binary incompatibility of ssl_ctx_st structure
3054 + DTLS interoperation with non-compliant servers
3055 + Don't call get_session_cb() without proposed session
3056 + Fix ia64 assembler code
3057 [Andy Polyakov, Steve Henson]
3059 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3061 *) DTLS Handshake overhaul. There were longstanding issues with
3062 OpenSSL DTLS implementation, which were making it impossible for
3063 RFC 4347 compliant client to communicate with OpenSSL server.
3064 Unfortunately just fixing these incompatibilities would "cut off"
3065 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3066 server keeps tolerating non RFC compliant syntax. The opposite is
3067 not true, 0.9.8f client can not communicate with earlier server.
3068 This update even addresses CVE-2007-4995.
3071 *) Changes to avoid need for function casts in OpenSSL: some compilers
3072 (gcc 4.2 and later) reject their use.
3073 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3076 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3077 RFC4507bis. The encrypted ticket format is an encrypted encoded
3078 SSL_SESSION structure, that way new session features are automatically
3081 If a client application caches session in an SSL_SESSION structure
3082 support is transparent because tickets are now stored in the encoded
3085 The SSL_CTX structure automatically generates keys for ticket
3086 protection in servers so again support should be possible
3087 with no application modification.
3089 If a client or server wishes to disable RFC4507 support then the option
3090 SSL_OP_NO_TICKET can be set.
3092 Add a TLS extension debugging callback to allow the contents of any client
3093 or server extensions to be examined.
3095 This work was sponsored by Google.
3098 *) Add initial support for TLS extensions, specifically for the server_name
3099 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3100 have new members for a host name. The SSL data structure has an
3101 additional member SSL_CTX *initial_ctx so that new sessions can be
3102 stored in that context to allow for session resumption, even after the
3103 SSL has been switched to a new SSL_CTX in reaction to a client's
3104 server_name extension.
3106 New functions (subject to change):
3108 SSL_get_servername()
3109 SSL_get_servername_type()
3112 New CTRL codes and macros (subject to change):
3114 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3115 - SSL_CTX_set_tlsext_servername_callback()
3116 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3117 - SSL_CTX_set_tlsext_servername_arg()
3118 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3120 openssl s_client has a new '-servername ...' option.
3122 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3123 '-key2 ...', '-servername_fatal' (subject to change). This allows
3124 testing the HostName extension for a specific single host name ('-cert'
3125 and '-key' remain fallbacks for handshakes without HostName
3126 negotiation). If the unrecognized_name alert has to be sent, this by
3127 default is a warning; it becomes fatal with the '-servername_fatal'
3130 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3132 *) Add AES and SSE2 assembly language support to VC++ build.
3135 *) Mitigate attack on final subtraction in Montgomery reduction.
3138 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3139 (which previously caused an internal error).
3142 *) Squeeze another 10% out of IGE mode when in != out.
3145 *) AES IGE mode speedup.
3146 [Dean Gaudet (Google)]
3148 *) Add the Korean symmetric 128-bit cipher SEED (see
3149 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3150 add SEED ciphersuites from RFC 4162:
3152 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3153 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3154 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3155 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3157 To minimize changes between patchlevels in the OpenSSL 0.9.8
3158 series, SEED remains excluded from compilation unless OpenSSL
3159 is configured with 'enable-seed'.
3160 [KISA, Bodo Moeller]
3162 *) Mitigate branch prediction attacks, which can be practical if a
3163 single processor is shared, allowing a spy process to extract
3164 information. For detailed background information, see
3165 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3166 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3167 and Necessary Software Countermeasures"). The core of the change
3168 are new versions BN_div_no_branch() and
3169 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3170 respectively, which are slower, but avoid the security-relevant
3171 conditional branches. These are automatically called by BN_div()
3172 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3173 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3174 remove a conditional branch.
3176 BN_FLG_CONSTTIME is the new name for the previous
3177 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3178 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3179 in the exponent causes BN_mod_exp_mont() to use the alternative
3180 implementation in BN_mod_exp_mont_consttime().) The old name
3181 remains as a deprecated alias.
3183 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3184 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3185 constant-time implementations for more than just exponentiation.
3186 Here too the old name is kept as a deprecated alias.
3188 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3189 the BN_BLINDING structure gets an independent copy of the
3190 modulus. This means that the previous "BIGNUM *m" argument to
3191 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3192 essentially becomes "const BIGNUM *m", although we can't actually
3193 change this in the header file before 0.9.9. It allows
3194 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3195 enable BN_FLG_CONSTTIME.
3197 [Matthew D Wood (Intel Corp)]
3199 *) In the SSL/TLS server implementation, be strict about session ID
3200 context matching (which matters if an application uses a single
3201 external cache for different purposes). Previously,
3202 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3203 set. This did ensure strict client verification, but meant that,
3204 with applications using a single external cache for quite
3205 different requirements, clients could circumvent ciphersuite
3206 restrictions for a given session ID context by starting a session
3207 in a different context.
3210 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3211 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3212 authentication-only ciphersuites.
3215 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3216 not complete and could lead to a possible single byte overflow
3217 (CVE-2007-5135) [Ben Laurie]
3219 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3221 *) Since AES128 and AES256 (and similarly Camellia128 and
3222 Camellia256) share a single mask bit in the logic of
3223 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3224 kludge to work properly if AES128 is available and AES256 isn't
3225 (or if Camellia128 is available and Camellia256 isn't).
3228 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3229 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3230 When a point or a seed is encoded in a BIT STRING, we need to
3231 prevent the removal of trailing zero bits to get the proper DER
3232 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3233 of a NamedBitList, for which trailing 0 bits need to be removed.)
3236 *) Have SSL/TLS server implementation tolerate "mismatched" record
3237 protocol version while receiving ClientHello even if the
3238 ClientHello is fragmented. (The server can't insist on the
3239 particular protocol version it has chosen before the ServerHello
3240 message has informed the client about his choice.)
3243 *) Add RFC 3779 support.
3244 [Rob Austein for ARIN, Ben Laurie]
3246 *) Load error codes if they are not already present instead of using a
3247 static variable. This allows them to be cleanly unloaded and reloaded.
3248 Improve header file function name parsing.
3251 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3252 or CAPABILITY handshake as required by RFCs.
3255 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3257 *) Introduce limits to prevent malicious keys being able to
3258 cause a denial of service. (CVE-2006-2940)
3259 [Steve Henson, Bodo Moeller]
3261 *) Fix ASN.1 parsing of certain invalid structures that can result
3262 in a denial of service. (CVE-2006-2937) [Steve Henson]
3264 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3265 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3267 *) Fix SSL client code which could crash if connecting to a
3268 malicious SSLv2 server. (CVE-2006-4343)
3269 [Tavis Ormandy and Will Drewry, Google Security Team]
3271 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3272 match only those. Before that, "AES256-SHA" would be interpreted
3273 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3274 the same strength classification in 0.9.7h) as we currently only
3275 have a single AES bit in the ciphersuite description bitmap.
3276 That change, however, also applied to ciphersuite strings such as
3277 "RC4-MD5" that intentionally matched multiple ciphersuites --
3278 namely, SSL 2.0 ciphersuites in addition to the more common ones
3279 from SSL 3.0/TLS 1.0.
3281 So we change the selection algorithm again: Naming an explicit
3282 ciphersuite selects this one ciphersuite, and any other similar
3283 ciphersuite (same bitmap) from *other* protocol versions.
3284 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3285 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3287 Since SSL 2.0 does not have any ciphersuites for which the
3288 128/256 bit distinction would be relevant, this works for now.
3289 The proper fix will be to use different bits for AES128 and
3290 AES256, which would have avoided the problems from the beginning;
3291 however, bits are scarce, so we can only do this in a new release
3292 (not just a patchlevel) when we can change the SSL_CIPHER
3293 definition to split the single 'unsigned long mask' bitmap into
3294 multiple values to extend the available space.
3298 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3300 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3301 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3303 *) Add AES IGE and biIGE modes.
3306 *) Change the Unix randomness entropy gathering to use poll() when
3307 possible instead of select(), since the latter has some
3308 undesirable limitations.
3309 [Darryl Miles via Richard Levitte and Bodo Moeller]
3311 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3312 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3313 cannot be implicitly activated as part of, e.g., the "AES" alias.
3314 However, please upgrade to OpenSSL 0.9.9[-dev] for
3315 non-experimental use of the ECC ciphersuites to get TLS extension
3316 support, which is required for curve and point format negotiation
3317 to avoid potential handshake problems.
3320 *) Disable rogue ciphersuites:
3322 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3323 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3324 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3326 The latter two were purportedly from
3327 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3330 Also deactivate the remaining ciphersuites from
3331 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3332 unofficial, and the ID has long expired.
3335 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3336 dual-core machines) and other potential thread-safety issues.
3339 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3340 versions), which is now available for royalty-free use
3341 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3342 Also, add Camellia TLS ciphersuites from RFC 4132.
3344 To minimize changes between patchlevels in the OpenSSL 0.9.8
3345 series, Camellia remains excluded from compilation unless OpenSSL
3346 is configured with 'enable-camellia'.
3349 *) Disable the padding bug check when compression is in use. The padding
3350 bug check assumes the first packet is of even length, this is not
3351 necessarily true if compresssion is enabled and can result in false
3352 positives causing handshake failure. The actual bug test is ancient
3353 code so it is hoped that implementations will either have fixed it by
3354 now or any which still have the bug do not support compression.
3357 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3359 *) When applying a cipher rule check to see if string match is an explicit
3360 cipher suite and only match that one cipher suite if it is.
3363 *) Link in manifests for VC++ if needed.
3364 [Austin Ziegler <halostatue@gmail.com>]
3366 *) Update support for ECC-based TLS ciphersuites according to
3367 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3368 TLS extensions, which are supported starting with the 0.9.9
3369 branch, not in the OpenSSL 0.9.8 branch).
3372 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3373 opaque EVP_CIPHER_CTX handling.
3376 *) Fixes and enhancements to zlib compression code. We now only use
3377 "zlib1.dll" and use the default __cdecl calling convention on Win32
3378 to conform with the standards mentioned here:
3379 http://www.zlib.net/DLL_FAQ.txt
3380 Static zlib linking now works on Windows and the new --with-zlib-include
3381 --with-zlib-lib options to Configure can be used to supply the location
3382 of the headers and library. Gracefully handle case where zlib library
3386 *) Several fixes and enhancements to the OID generation code. The old code
3387 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3388 handle numbers larger than ULONG_MAX, truncated printing and had a
3389 non standard OBJ_obj2txt() behaviour.
3392 *) Add support for building of engines under engine/ as shared libraries
3393 under VC++ build system.
3396 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3397 Hopefully, we will not see any false combination of paths any more.
3400 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3402 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3403 (part of SSL_OP_ALL). This option used to disable the
3404 countermeasure against man-in-the-middle protocol-version
3405 rollback in the SSL 2.0 server implementation, which is a bad
3406 idea. (CVE-2005-2969)
3408 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3409 for Information Security, National Institute of Advanced Industrial
3410 Science and Technology [AIST], Japan)]
3412 *) Add two function to clear and return the verify parameter flags.
3415 *) Keep cipherlists sorted in the source instead of sorting them at
3416 runtime, thus removing the need for a lock.
3419 *) Avoid some small subgroup attacks in Diffie-Hellman.
3420 [Nick Mathewson and Ben Laurie]
3422 *) Add functions for well-known primes.
3425 *) Extended Windows CE support.
3426 [Satoshi Nakamura and Andy Polyakov]
3428 *) Initialize SSL_METHOD structures at compile time instead of during
3429 runtime, thus removing the need for a lock.
3432 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3433 attempting to decrypt each encrypted key in turn. Add support to
3437 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3439 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3442 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3445 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3446 key into the same file any more.
3449 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3452 *) Add -utf8 command line and config file option to 'ca'.
3453 [Stefan <stf@udoma.org]
3455 *) Removed the macro des_crypt(), as it seems to conflict with some
3456 libraries. Use DES_crypt().
3459 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3460 involves renaming the source and generated shared-libs for
3461 both. The engines will accept the corrected or legacy ids
3462 ('ncipher' and '4758_cca' respectively) when binding. NB,
3463 this only applies when building 'shared'.
3464 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3466 *) Add attribute functions to EVP_PKEY structure. Modify
3467 PKCS12_create() to recognize a CSP name attribute and
3468 use it. Make -CSP option work again in pkcs12 utility.
3471 *) Add new functionality to the bn blinding code:
3472 - automatic re-creation of the BN_BLINDING parameters after
3473 a fixed number of uses (currently 32)
3474 - add new function for parameter creation
3475 - introduce flags to control the update behaviour of the
3476 BN_BLINDING parameters
3477 - hide BN_BLINDING structure
3478 Add a second BN_BLINDING slot to the RSA structure to improve
3479 performance when a single RSA object is shared among several
3483 *) Add support for DTLS.
3484 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3486 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3487 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3490 *) Remove buggy and incomplete DH cert support from
3491 ssl/ssl_rsa.c and ssl/s3_both.c
3494 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3495 the apps/openssl applications.
3498 *) Compile clean with "-Wall -Wmissing-prototypes
3499 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3500 DEBUG_SAFESTACK must also be set.
3503 *) Change ./Configure so that certain algorithms can be disabled by default.
3504 The new counterpiece to "no-xxx" is "enable-xxx".
3506 The patented RC5 and MDC2 algorithms will now be disabled unless
3507 "enable-rc5" and "enable-mdc2", respectively, are specified.
3509 (IDEA remains enabled despite being patented. This is because IDEA
3510 is frequently required for interoperability, and there is no license
3511 fee for non-commercial use. As before, "no-idea" can be used to
3512 avoid this algorithm.)
3516 *) Add processing of proxy certificates (see RFC 3820). This work was
3517 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3518 EGEE (Enabling Grids for E-science in Europe).
3521 *) RC4 performance overhaul on modern architectures/implementations, such
3522 as Intel P4, IA-64 and AMD64.
3525 *) New utility extract-section.pl. This can be used specify an alternative
3526 section number in a pod file instead of having to treat each file as
3527 a separate case in Makefile. This can be done by adding two lines to the
3530 =for comment openssl_section:XXX
3532 The blank line is mandatory.
3536 *) New arguments -certform, -keyform and -pass for s_client and s_server
3537 to allow alternative format key and certificate files and passphrase
3541 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3542 update associated structures and add various utility functions.
3544 Add new policy related verify parameters, include policy checking in
3545 standard verify code. Enhance 'smime' application with extra parameters
3546 to support policy checking and print out.
3549 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3550 Nehemiah processors. These extensions support AES encryption in hardware
3551 as well as RNG (though RNG support is currently disabled).
3552 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3554 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3557 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3558 [Andy Polyakov and a number of other people]
3560 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3561 implementation contributed by IBM.
3562 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3564 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3565 exponent rather than 'unsigned long'. There is a corresponding change to
3566 the new 'rsa_keygen' element of the RSA_METHOD structure.
3567 [Jelte Jansen, Geoff Thorpe]
3569 *) Functionality for creating the initial serial number file is now
3570 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3572 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3573 number file to 1, which is bound to cause problems. To avoid
3574 the problems while respecting compatibility between different 0.9.7
3575 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3576 CA.pl for serial number initialization. With the new release 0.9.8,
3577 we can fix the problem directly in the 'ca' utility.)
3580 *) Reduced header interdepencies by declaring more opaque objects in
3581 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3582 give fewer recursive includes, which could break lazy source code - so
3583 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3584 developers should define this symbol when building and using openssl to
3585 ensure they track the recommended behaviour, interfaces, [etc], but
3586 backwards-compatible behaviour prevails when this isn't defined.
3589 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3592 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3593 This will generate a random key of the appropriate length based on the
3594 cipher context. The EVP_CIPHER can provide its own random key generation
3595 routine to support keys of a specific form. This is used in the des and
3596 3des routines to generate a key of the correct parity. Update S/MIME
3597 code to use new functions and hence generate correct parity DES keys.
3598 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3599 valid (weak or incorrect parity).
3602 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3603 as looking them up. This is useful when the verified structure may contain
3604 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3605 present unless the new PKCS7_NO_CRL flag is asserted.
3608 *) Extend ASN1 oid configuration module. It now additionally accepts the
3611 shortName = some long name, 1.2.3.4
3614 *) Reimplemented the BN_CTX implementation. There is now no more static
3615 limitation on the number of variables it can handle nor the depth of the
3616 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3617 information can now expand as required, and rather than having a single
3618 static array of bignums, BN_CTX now uses a linked-list of such arrays
3619 allowing it to expand on demand whilst maintaining the usefulness of
3620 BN_CTX's "bundling".
3623 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3624 to allow all RSA operations to function using a single BN_CTX.
3627 *) Preliminary support for certificate policy evaluation and checking. This
3628 is initially intended to pass the tests outlined in "Conformance Testing
3629 of Relying Party Client Certificate Path Processing Logic" v1.07.
3632 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3633 remained unused and not that useful. A variety of other little bignum
3634 tweaks and fixes have also been made continuing on from the audit (see
3638 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3639 associated ASN1, EVP and SSL functions and old ASN1 macros.
3642 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3643 and this should never fail. So the return value from the use of
3644 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3645 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3648 *) BN_CTX_get() should return zero-valued bignums, providing the same
3649 initialised value as BN_new().
3650 [Geoff Thorpe, suggested by Ulf Möller]
3652 *) Support for inhibitAnyPolicy certificate extension.
3655 *) An audit of the BIGNUM code is underway, for which debugging code is
3656 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3657 is considered valid when processing BIGNUMs, and causes execution to
3658 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3659 further steps are taken to deliberately pollute unused data in BIGNUM
3660 structures to try and expose faulty code further on. For now, openssl will
3661 (in its default mode of operation) continue to tolerate the inconsistent
3662 forms that it has tolerated in the past, but authors and packagers should
3663 consider trying openssl and their own applications when compiled with
3664 these debugging symbols defined. It will help highlight potential bugs in
3665 their own code, and will improve the test coverage for OpenSSL itself. At
3666 some point, these tighter rules will become openssl's default to improve
3667 maintainability, though the assert()s and other overheads will remain only
3668 in debugging configurations. See bn.h for more details.
3669 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3671 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3672 that can only be obtained through BN_CTX_new() (which implicitly
3673 initialises it). The presence of this function only made it possible
3674 to overwrite an existing structure (and cause memory leaks).
3677 *) Because of the callback-based approach for implementing LHASH as a
3678 template type, lh_insert() adds opaque objects to hash-tables and
3679 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3680 to clean up those corresponding objects before destroying the hash table
3681 (and losing the object pointers). So some over-zealous constifications in
3682 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3683 objects as "const" and the lh_doall[_arg] callback wrappers are not
3684 prototyped to have "const" restrictions on the object pointers they are
3685 given (and so aren't required to cast them away any more).
3688 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3689 (speed) prefers to use its own implementation. The two implementations
3690 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3691 its object type properly exposed (MS_TM) instead of casting to/from "char
3692 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3693 aren't necessarily the greatest nomenclatures - but this is what was used
3694 internally to the implementation so I've used that for now.
3697 *) Ensure that deprecated functions do not get compiled when
3698 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3699 the self-tests were still using deprecated key-generation functions so
3700 these have been updated also.
3703 *) Reorganise PKCS#7 code to separate the digest location functionality
3704 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
3705 New function PKCS7_set_digest() to set the digest type for PKCS#7
3706 digestedData type. Add additional code to correctly generate the
3707 digestedData type and add support for this type in PKCS7 initialization
3711 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3712 structure of type "other".
3715 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3716 sure the loop does correctly stop and breaking ("division by zero")
3717 modulus operations are not performed. The (pre-generated) prime
3718 table crypto/bn/bn_prime.h was already correct, but it could not be
3719 re-generated on some platforms because of the "division by zero"
3720 situation in the script.
3721 [Ralf S. Engelschall]
3723 *) Update support for ECC-based TLS ciphersuites according to
3724 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3725 SHA-1 now is only used for "small" curves (where the
3726 representation of a field element takes up to 24 bytes); for
3727 larger curves, the field element resulting from ECDH is directly
3728 used as premaster secret.
3729 [Douglas Stebila (Sun Microsystems Laboratories)]
3731 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3732 curve secp160r1 to the tests.
3733 [Douglas Stebila (Sun Microsystems Laboratories)]
3735 *) Add the possibility to load symbols globally with DSO.
3736 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3738 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3739 control of the error stack.
3742 *) Add support for STORE in ENGINE.
3745 *) Add the STORE type. The intention is to provide a common interface
3746 to certificate and key stores, be they simple file-based stores, or
3747 HSM-type store, or LDAP stores, or...
3748 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3751 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3752 pass a list of arguments to any function as well as provide a way
3753 for a function to pass data back to the caller.
3756 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3757 works like BUF_strdup() but can be used to duplicate a portion of
3758 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3762 *) Add the function sk_find_ex() which works like sk_find(), but will
3763 return an index to an element even if an exact match couldn't be
3764 found. The index is guaranteed to point at the element where the
3765 searched-for key would be inserted to preserve sorting order.
3768 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3769 takes an extra flags argument for optional functionality. Currently,
3770 the following flags are defined:
3772 OBJ_BSEARCH_VALUE_ON_NOMATCH
3773 This one gets OBJ_bsearch_ex() to return a pointer to the first
3774 element where the comparing function returns a negative or zero
3777 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3778 This one gets OBJ_bsearch_ex() to return a pointer to the first
3779 element where the comparing function returns zero. This is useful
3780 if there are more than one element where the comparing function
3784 *) Make it possible to create self-signed certificates with 'openssl ca'
3785 in such a way that the self-signed certificate becomes part of the
3786 CA database and uses the same mechanisms for serial number generation
3787 as all other certificate signing. The new flag '-selfsign' enables
3788 this functionality. Adapt CA.sh and CA.pl.in.
3791 *) Add functionality to check the public key of a certificate request
3792 against a given private. This is useful to check that a certificate
3793 request can be signed by that key (self-signing).
3796 *) Make it possible to have multiple active certificates with the same
3797 subject in the CA index file. This is done only if the keyword
3798 'unique_subject' is set to 'no' in the main CA section (default
3799 if 'CA_default') of the configuration file. The value is saved
3800 with the database itself in a separate index attribute file,
3801 named like the index file with '.attr' appended to the name.
3804 *) Generate muti valued AVAs using '+' notation in config files for
3808 *) Support for nameConstraints certificate extension.
3811 *) Support for policyConstraints certificate extension.
3814 *) Support for policyMappings certificate extension.
3817 *) Make sure the default DSA_METHOD implementation only uses its
3818 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3819 and change its own handlers to be NULL so as to remove unnecessary
3820 indirection. This lets alternative implementations fallback to the
3821 default implementation more easily.
3824 *) Support for directoryName in GeneralName related extensions
3828 *) Make it possible to link applications using Makefile.shared.
3829 Make that possible even when linking against static libraries!
3832 *) Support for single pass processing for S/MIME signing. This now
3833 means that S/MIME signing can be done from a pipe, in addition
3834 cleartext signing (multipart/signed type) is effectively streaming
3835 and the signed data does not need to be all held in memory.
3837 This is done with a new flag PKCS7_STREAM. When this flag is set
3838 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3839 is done after the data is output (and digests calculated) in
3840 SMIME_write_PKCS7().
3843 *) Add full support for -rpath/-R, both in shared libraries and
3844 applications, at least on the platforms where it's known how
3848 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3849 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3850 will now compute a table of multiples of the generator that
3851 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3852 faster (notably in the case of a single point multiplication,
3853 scalar * generator).
3854 [Nils Larsch, Bodo Moeller]
3856 *) IPv6 support for certificate extensions. The various extensions
3857 which use the IP:a.b.c.d can now take IPv6 addresses using the
3858 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3862 *) Added an ENGINE that implements RSA by performing private key
3863 exponentiations with the GMP library. The conversions to and from
3864 GMP's mpz_t format aren't optimised nor are any montgomery forms
3865 cached, and on x86 it appears OpenSSL's own performance has caught up.
3866 However there are likely to be other architectures where GMP could
3867 provide a boost. This ENGINE is not built in by default, but it can be
3868 specified at Configure time and should be accompanied by the necessary
3869 linker additions, eg;
3870 ./config -DOPENSSL_USE_GMP -lgmp
3873 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3874 testing availability of engines with "-t" - the old behaviour is
3875 produced by increasing the feature's verbosity with "-tt".
3878 *) ECDSA routines: under certain error conditions uninitialized BN objects
3879 could be freed. Solution: make sure initialization is performed early
3880 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3884 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3885 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3886 software implementations. For DSA and DH, parameter generation can
3887 also be overriden by providing the appropriate method callbacks.
3890 *) Change the "progress" mechanism used in key-generation and
3891 primality testing to functions that take a new BN_GENCB pointer in
3892 place of callback/argument pairs. The new API functions have "_ex"
3893 postfixes and the older functions are reimplemented as wrappers for
3894 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3895 declarations of the old functions to help (graceful) attempts to
3896 migrate to the new functions. Also, the new key-generation API
3897 functions operate on a caller-supplied key-structure and return
3898 success/failure rather than returning a key or NULL - this is to
3899 help make "keygen" another member function of RSA_METHOD etc.
3901 Example for using the new callback interface:
3903 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3907 BN_GENCB_set(&my_cb, my_callback, my_arg);
3909 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3910 /* For the meaning of a, b in calls to my_callback(), see the
3911 * documentation of the function that calls the callback.
3912 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3913 * my_callback should return 1 if it wants BN_is_prime_ex()
3914 * to continue, or 0 to stop.
3919 *) Change the ZLIB compression method to be stateful, and make it
3920 available to TLS with the number defined in
3921 draft-ietf-tls-compression-04.txt.
3924 *) Add the ASN.1 structures and functions for CertificatePair, which
3925 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3927 CertificatePair ::= SEQUENCE {
3928 forward [0] Certificate OPTIONAL,
3929 reverse [1] Certificate OPTIONAL,
3930 -- at least one of the pair shall be present -- }
3932 Also implement the PEM functions to read and write certificate
3933 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3935 This needed to be defined, mostly for the sake of the LDAP
3936 attribute crossCertificatePair, but may prove useful elsewhere as
3940 *) Make it possible to inhibit symlinking of shared libraries in
3941 Makefile.shared, for Cygwin's sake.
3944 *) Extend the BIGNUM API by creating a function
3945 void BN_set_negative(BIGNUM *a, int neg);
3946 and a macro that behave like
3947 int BN_is_negative(const BIGNUM *a);
3949 to avoid the need to access 'a->neg' directly in applications.
3952 *) Implement fast modular reduction for pseudo-Mersenne primes
3953 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3954 EC_GROUP_new_curve_GFp() will now automatically use this
3956 [Nils Larsch <nla@trustcenter.de>]
3958 *) Add new lock type (CRYPTO_LOCK_BN).
3961 *) Change the ENGINE framework to automatically load engines
3962 dynamically from specific directories unless they could be
3963 found to already be built in or loaded. Move all the
3964 current engines except for the cryptodev one to a new
3966 The engines in engines/ are built as shared libraries if
3967 the "shared" options was given to ./Configure or ./config.
3968 Otherwise, they are inserted in libcrypto.a.
3969 /usr/local/ssl/engines is the default directory for dynamic
3970 engines, but that can be overriden at configure time through
3971 the usual use of --prefix and/or --openssldir, and at run
3972 time with the environment variable OPENSSL_ENGINES.
3973 [Geoff Thorpe and Richard Levitte]
3975 *) Add Makefile.shared, a helper makefile to build shared
3976 libraries. Adapt Makefile.org.
3979 *) Add version info to Win32 DLLs.
3980 [Peter 'Luna' Runestig" <peter@runestig.com>]
3982 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3983 can be added using this API to created arbitrary PKCS#12
3984 files while avoiding the low level API.
3986 New options to PKCS12_create(), key or cert can be NULL and
3987 will then be omitted from the output file. The encryption
3988 algorithm NIDs can be set to -1 for no encryption, the mac
3989 iteration count can be set to 0 to omit the mac.
3991 Enhance pkcs12 utility by making the -nokeys and -nocerts
3992 options work when creating a PKCS#12 file. New option -nomac
3993 to omit the mac, NONE can be set for an encryption algorithm.
3994 New code is modified to use the enhanced PKCS12_create()
3995 instead of the low level API.
3998 *) Extend ASN1 encoder to support indefinite length constructed
3999 encoding. This can output sequences tags and octet strings in
4000 this form. Modify pk7_asn1.c to support indefinite length
4001 encoding. This is experimental and needs additional code to
4002 be useful, such as an ASN1 bio and some enhanced streaming
4005 Extend template encode functionality so that tagging is passed
4006 down to the template encoder.
4009 *) Let 'openssl req' fail if an argument to '-newkey' is not
4010 recognized instead of using RSA as a default.
4013 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4014 As these are not official, they are not included in "ALL";
4015 the "ECCdraft" ciphersuite group alias can be used to select them.
4016 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4018 *) Add ECDH engine support.
4019 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4021 *) Add ECDH in new directory crypto/ecdh/.
4022 [Douglas Stebila (Sun Microsystems Laboratories)]
4024 *) Let BN_rand_range() abort with an error after 100 iterations
4025 without success (which indicates a broken PRNG).
4028 *) Change BN_mod_sqrt() so that it verifies that the input value
4029 is really the square of the return value. (Previously,
4030 BN_mod_sqrt would show GIGO behaviour.)
4033 *) Add named elliptic curves over binary fields from X9.62, SECG,
4034 and WAP/WTLS; add OIDs that were still missing.
4036 [Sheueling Chang Shantz and Douglas Stebila
4037 (Sun Microsystems Laboratories)]
4039 *) Extend the EC library for elliptic curves over binary fields
4040 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4043 EC_GF2m_simple_method
4047 EC_GROUP_new_curve_GF2m
4048 EC_GROUP_set_curve_GF2m
4049 EC_GROUP_get_curve_GF2m
4050 EC_POINT_set_affine_coordinates_GF2m
4051 EC_POINT_get_affine_coordinates_GF2m
4052 EC_POINT_set_compressed_coordinates_GF2m
4054 Point compression for binary fields is disabled by default for
4055 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4058 As binary polynomials are represented as BIGNUMs, various members
4059 of the EC_GROUP and EC_POINT data structures can be shared
4060 between the implementations for prime fields and binary fields;
4061 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4062 are essentially identical to their ..._GFp counterparts.
4063 (For simplicity, the '..._GFp' prefix has been dropped from
4064 various internal method names.)
4066 An internal 'field_div' method (similar to 'field_mul' and
4067 'field_sqr') has been added; this is used only for binary fields.
4069 [Sheueling Chang Shantz and Douglas Stebila
4070 (Sun Microsystems Laboratories)]
4072 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4073 through methods ('mul', 'precompute_mult').
4075 The generic implementations (now internally called 'ec_wNAF_mul'
4076 and 'ec_wNAF_precomputed_mult') remain the default if these
4077 methods are undefined.
4079 [Sheueling Chang Shantz and Douglas Stebila
4080 (Sun Microsystems Laboratories)]
4082 *) New function EC_GROUP_get_degree, which is defined through
4083 EC_METHOD. For curves over prime fields, this returns the bit
4084 length of the modulus.
4086 [Sheueling Chang Shantz and Douglas Stebila
4087 (Sun Microsystems Laboratories)]
4089 *) New functions EC_GROUP_dup, EC_POINT_dup.
4090 (These simply call ..._new and ..._copy).
4092 [Sheueling Chang Shantz and Douglas Stebila
4093 (Sun Microsystems Laboratories)]
4095 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4096 Polynomials are represented as BIGNUMs (where the sign bit is not
4097 used) in the following functions [macros]:
4100 BN_GF2m_sub [= BN_GF2m_add]
4101 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4102 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4103 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4105 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4106 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4107 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4108 BN_GF2m_cmp [= BN_ucmp]
4110 (Note that only the 'mod' functions are actually for fields GF(2^m).
4111 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4113 For some functions, an the irreducible polynomial defining a
4114 field can be given as an 'unsigned int[]' with strictly
4115 decreasing elements giving the indices of those bits that are set;
4116 i.e., p[] represents the polynomial
4117 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4119 p[0] > p[1] > ... > p[k] = 0.
4120 This applies to the following functions:
4125 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4126 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4128 BN_GF2m_mod_sqrt_arr
4129 BN_GF2m_mod_solve_quad_arr
4133 Conversion can be performed by the following functions:
4138 bntest.c has additional tests for binary polynomial arithmetic.
4140 Two implementations for BN_GF2m_mod_div() are available.
4141 The default algorithm simply uses BN_GF2m_mod_inv() and
4142 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4143 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4144 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4146 [Sheueling Chang Shantz and Douglas Stebila
4147 (Sun Microsystems Laboratories)]
4149 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4150 functionality is disabled at compile-time.
4151 [Douglas Stebila <douglas.stebila@sun.com>]
4153 *) Change default behaviour of 'openssl asn1parse' so that more
4154 information is visible when viewing, e.g., a certificate:
4156 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4157 mode the content of non-printable OCTET STRINGs is output in a
4158 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4159 avoid the appearance of a printable string.
4160 [Nils Larsch <nla@trustcenter.de>]
4162 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4164 EC_GROUP_set_asn1_flag()
4165 EC_GROUP_get_asn1_flag()
4166 EC_GROUP_set_point_conversion_form()
4167 EC_GROUP_get_point_conversion_form()
4168 These control ASN1 encoding details:
4169 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4170 has been set to OPENSSL_EC_NAMED_CURVE.
4171 - Points are encoded in uncompressed form by default; options for
4172 asn1_for are as for point2oct, namely
4173 POINT_CONVERSION_COMPRESSED
4174 POINT_CONVERSION_UNCOMPRESSED
4175 POINT_CONVERSION_HYBRID
4177 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4180 EC_GROUP_get0_seed()
4181 EC_GROUP_get_seed_len()
4182 This is used only for ASN1 purposes (so far).
4183 [Nils Larsch <nla@trustcenter.de>]
4185 *) Add 'field_type' member to EC_METHOD, which holds the NID
4186 of the appropriate field type OID. The new function
4187 EC_METHOD_get_field_type() returns this value.
4188 [Nils Larsch <nla@trustcenter.de>]
4193 EC_POINT_point2hex()
4194 EC_POINT_hex2point()
4195 providing useful interfaces to EC_POINT_point2oct() and
4196 EC_POINT_oct2point().
4197 [Nils Larsch <nla@trustcenter.de>]
4199 *) Change internals of the EC library so that the functions
4200 EC_GROUP_set_generator()
4201 EC_GROUP_get_generator()
4202 EC_GROUP_get_order()
4203 EC_GROUP_get_cofactor()
4204 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4205 to methods, which would lead to unnecessary code duplication when
4206 adding different types of curves.
4207 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4209 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4210 arithmetic, and such that modified wNAFs are generated
4211 (which avoid length expansion in many cases).
4214 *) Add a function EC_GROUP_check_discriminant() (defined via
4215 EC_METHOD) that verifies that the curve discriminant is non-zero.
4217 Add a function EC_GROUP_check() that makes some sanity tests
4218 on a EC_GROUP, its generator and order. This includes
4219 EC_GROUP_check_discriminant().
4220 [Nils Larsch <nla@trustcenter.de>]
4222 *) Add ECDSA in new directory crypto/ecdsa/.
4224 Add applications 'openssl ecparam' and 'openssl ecdsa'
4225 (these are based on 'openssl dsaparam' and 'openssl dsa').
4227 ECDSA support is also included in various other files across the
4228 library. Most notably,
4229 - 'openssl req' now has a '-newkey ecdsa:file' option;
4230 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4231 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4232 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4233 them suitable for ECDSA where domain parameters must be
4234 extracted before the specific public key;
4235 - ECDSA engine support has been added.
4236 [Nils Larsch <nla@trustcenter.de>]
4238 *) Include some named elliptic curves, and add OIDs from X9.62,
4239 SECG, and WAP/WTLS. Each curve can be obtained from the new
4241 EC_GROUP_new_by_curve_name(),
4242 and the list of available named curves can be obtained with
4243 EC_get_builtin_curves().
4244 Also add a 'curve_name' member to EC_GROUP objects, which can be
4246 EC_GROUP_set_curve_name()
4247 EC_GROUP_get_curve_name()
4248 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4250 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4251 was actually never needed) and in BN_mul(). The removal in BN_mul()
4252 required a small change in bn_mul_part_recursive() and the addition
4253 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4254 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4255 bn_sub_words() and bn_add_words() except they take arrays with
4259 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4261 *) Cleanse PEM buffers before freeing them since they may contain
4263 [Benjamin Bennett <ben@psc.edu>]
4265 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4266 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4267 authentication-only ciphersuites.
4270 *) Since AES128 and AES256 share a single mask bit in the logic of
4271 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4272 kludge to work properly if AES128 is available and AES256 isn't.
4275 *) Expand security boundary to match 1.1.1 module.
4278 *) Remove redundant features: hash file source, editing of test vectors
4279 modify fipsld to use external fips_premain.c signature.
4282 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4283 run algorithm test programs.
4286 *) Make algorithm test programs more tolerant of whitespace.
4289 *) Have SSL/TLS server implementation tolerate "mismatched" record
4290 protocol version while receiving ClientHello even if the
4291 ClientHello is fragmented. (The server can't insist on the
4292 particular protocol version it has chosen before the ServerHello
4293 message has informed the client about his choice.)
4296 *) Load error codes if they are not already present instead of using a
4297 static variable. This allows them to be cleanly unloaded and reloaded.
4300 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4302 *) Introduce limits to prevent malicious keys being able to
4303 cause a denial of service. (CVE-2006-2940)
4304 [Steve Henson, Bodo Moeller]
4306 *) Fix ASN.1 parsing of certain invalid structures that can result
4307 in a denial of service. (CVE-2006-2937) [Steve Henson]
4309 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4310 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4312 *) Fix SSL client code which could crash if connecting to a
4313 malicious SSLv2 server. (CVE-2006-4343)
4314 [Tavis Ormandy and Will Drewry, Google Security Team]
4316 *) Change ciphersuite string processing so that an explicit
4317 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4318 will no longer include "AES128-SHA"), and any other similar
4319 ciphersuite (same bitmap) from *other* protocol versions (so that
4320 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4321 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4322 changes from 0.9.8b and 0.9.8d.
4325 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4327 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4328 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4330 *) Change the Unix randomness entropy gathering to use poll() when
4331 possible instead of select(), since the latter has some
4332 undesirable limitations.
4333 [Darryl Miles via Richard Levitte and Bodo Moeller]
4335 *) Disable rogue ciphersuites:
4337 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4338 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4339 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4341 The latter two were purportedly from
4342 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4345 Also deactive the remaining ciphersuites from
4346 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4347 unofficial, and the ID has long expired.
4350 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4351 dual-core machines) and other potential thread-safety issues.
4354 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4356 *) Adapt fipsld and the build system to link against the validated FIPS
4357 module in FIPS mode.
4360 *) Fixes for VC++ 2005 build under Windows.
4363 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4364 from a Windows bash shell such as MSYS. It is autodetected from the
4365 "config" script when run from a VC++ environment. Modify standard VC++
4366 build to use fipscanister.o from the GNU make build.
4369 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4371 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4372 The value now differs depending on if you build for FIPS or not.
4373 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4374 safely run with a non-FIPSed libcrypto, as it may crash because of
4375 the difference induced by this change.
4378 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4380 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4381 (part of SSL_OP_ALL). This option used to disable the
4382 countermeasure against man-in-the-middle protocol-version
4383 rollback in the SSL 2.0 server implementation, which is a bad
4384 idea. (CVE-2005-2969)
4386 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4387 for Information Security, National Institute of Advanced Industrial
4388 Science and Technology [AIST], Japan)]
4390 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4391 mainly for FIPS compliance and not fully integrated at this stage.
4394 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4395 the exponentiation using a fixed-length exponent. (Otherwise,
4396 the information leaked through timing could expose the secret key
4397 after many signatures; cf. Bleichenbacher's attack on DSA with
4401 *) Make a new fixed-window mod_exp implementation the default for
4402 RSA, DSA, and DH private-key operations so that the sequence of
4403 squares and multiplies and the memory access pattern are
4404 independent of the particular secret key. This will mitigate
4405 cache-timing and potential related attacks.
4407 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4408 and this is automatically used by BN_mod_exp_mont() if the new flag
4409 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4410 will use this BN flag for private exponents unless the flag
4411 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4412 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4414 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4416 *) Change the client implementation for SSLv23_method() and
4417 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4418 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4419 (Previously, the SSL 2.0 backwards compatible Client Hello
4420 message format would be used even with SSL_OP_NO_SSLv2.)
4423 *) Add support for smime-type MIME parameter in S/MIME messages which some
4427 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4428 a threadsafe manner. Modify rsa code to use new function and add calls
4429 to dsa and dh code (which had race conditions before).
4432 *) Include the fixed error library code in the C error file definitions
4433 instead of fixing them up at runtime. This keeps the error code
4434 structures constant.
4437 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4439 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4442 *) Fixes for newer kerberos headers. NB: the casts are needed because
4443 the 'length' field is signed on one version and unsigned on another
4444 with no (?) obvious way to tell the difference, without these VC++
4445 complains. Also the "definition" of FAR (blank) is no longer included
4446 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4447 some needed definitions.
4450 *) Undo Cygwin change.
4453 *) Added support for proxy certificates according to RFC 3820.
4454 Because they may be a security thread to unaware applications,
4455 they must be explicitely allowed in run-time. See
4456 docs/HOWTO/proxy_certificates.txt for further information.
4459 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4461 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4462 server and client random values. Previously
4463 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4464 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4466 This change has negligible security impact because:
4468 1. Server and client random values still have 24 bytes of pseudo random
4471 2. Server and client random values are sent in the clear in the initial
4474 3. The master secret is derived using the premaster secret (48 bytes in
4475 size for static RSA ciphersuites) as well as client server and random
4478 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4481 [Stephen Henson, reported by UK NISCC]
4483 *) Use Windows randomness collection on Cygwin.
4486 *) Fix hang in EGD/PRNGD query when communication socket is closed
4487 prematurely by EGD/PRNGD.
4488 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4490 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4493 *) Back-port of selected performance improvements from development
4494 branch, as well as improved support for PowerPC platforms.
4497 *) Add lots of checks for memory allocation failure, error codes to indicate
4498 failure and freeing up memory if a failure occurs.
4499 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4501 *) Add new -passin argument to dgst.
4504 *) Perform some character comparisons of different types in X509_NAME_cmp:
4505 this is needed for some certificates that reencode DNs into UTF8Strings
4506 (in violation of RFC3280) and can't or wont issue name rollover
4510 *) Make an explicit check during certificate validation to see that
4511 the CA setting in each certificate on the chain is correct. As a
4512 side effect always do the following basic checks on extensions,
4513 not just when there's an associated purpose to the check:
4515 - if there is an unhandled critical extension (unless the user
4516 has chosen to ignore this fault)
4517 - if the path length has been exceeded (if one is set at all)
4518 - that certain extensions fit the associated purpose (if one has
4522 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4524 *) Avoid a race condition when CRLs are checked in a multi threaded
4525 environment. This would happen due to the reordering of the revoked
4526 entries during signature checking and serial number lookup. Now the
4527 encoding is cached and the serial number sort performed under a lock.
4528 Add new STACK function sk_is_sorted().
4531 *) Add Delta CRL to the extension code.
4534 *) Various fixes to s3_pkt.c so alerts are sent properly.
4535 [David Holmes <d.holmes@f5.com>]
4537 *) Reduce the chances of duplicate issuer name and serial numbers (in
4538 violation of RFC3280) using the OpenSSL certificate creation utilities.
4539 This is done by creating a random 64 bit value for the initial serial
4540 number when a serial number file is created or when a self signed
4541 certificate is created using 'openssl req -x509'. The initial serial
4542 number file is created using 'openssl x509 -next_serial' in CA.pl
4543 rather than being initialized to 1.
4546 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4548 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4549 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4550 [Joe Orton, Steve Henson]
4552 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4554 [Joe Orton, Steve Henson]
4556 *) Make it possible to have multiple active certificates with the same
4557 subject in the CA index file. This is done only if the keyword
4558 'unique_subject' is set to 'no' in the main CA section (default
4559 if 'CA_default') of the configuration file. The value is saved
4560 with the database itself in a separate index attribute file,
4561 named like the index file with '.attr' appended to the name.
4564 *) X509 verify fixes. Disable broken certificate workarounds when
4565 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4566 keyUsage extension present. Don't accept CRLs with unhandled critical
4567 extensions: since verify currently doesn't process CRL extensions this
4568 rejects a CRL with *any* critical extensions. Add new verify error codes
4572 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4573 A clarification of RFC2560 will require the use of OCTET STRINGs and
4574 some implementations cannot handle the current raw format. Since OpenSSL
4575 copies and compares OCSP nonces as opaque blobs without any attempt at
4576 parsing them this should not create any compatibility issues.
4579 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4580 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4581 this HMAC (and other) operations are several times slower than OpenSSL
4585 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4586 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4588 *) Use the correct content when signing type "other".
4591 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4593 *) Fix various bugs revealed by running the NISCC test suite:
4595 Stop out of bounds reads in the ASN1 code when presented with
4596 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4598 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4600 If verify callback ignores invalid public key errors don't try to check
4601 certificate signature with the NULL public key.
4605 *) New -ignore_err option in ocsp application to stop the server
4606 exiting on the first error in a request.
4609 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4610 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4614 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4615 extra data after the compression methods not only for TLS 1.0
4616 but also for SSL 3.0 (as required by the specification).
4617 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4619 *) Change X509_certificate_type() to mark the key as exported/exportable
4620 when it's 512 *bits* long, not 512 bytes.
4623 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4624 blocks during encryption.
4627 *) Various fixes to base64 BIO and non blocking I/O. On write
4628 flushes were not handled properly if the BIO retried. On read
4629 data was not being buffered properly and had various logic bugs.
4630 This also affects blocking I/O when the data being decoded is a
4634 *) Various S/MIME bugfixes and compatibility changes:
4635 output correct application/pkcs7 MIME type if
4636 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4637 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4638 of files as .eml work). Correctly handle very long lines in MIME
4642 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4644 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4645 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4646 a protocol version number mismatch like a decryption error
4647 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4650 *) Turn on RSA blinding by default in the default implementation
4651 to avoid a timing attack. Applications that don't want it can call
4652 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4653 They would be ill-advised to do so in most cases.
4654 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4656 *) Change RSA blinding code so that it works when the PRNG is not
4657 seeded (in this case, the secret RSA exponent is abused as
4658 an unpredictable seed -- if it is not unpredictable, there
4659 is no point in blinding anyway). Make RSA blinding thread-safe
4660 by remembering the creator's thread ID in rsa->blinding and
4661 having all other threads use local one-time blinding factors
4662 (this requires more computation than sharing rsa->blinding, but
4663 avoids excessive locking; and if an RSA object is not shared
4664 between threads, blinding will still be very fast).
4667 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4668 ENGINE as defaults for all supported algorithms irrespective of
4669 the 'flags' parameter. 'flags' is now honoured, so applications
4670 should make sure they are passing it correctly.
4673 *) Target "mingw" now allows native Windows code to be generated in
4674 the Cygwin environment as well as with the MinGW compiler.
4677 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4679 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4680 via timing by performing a MAC computation even if incorrect
4681 block cipher padding has been found. This is a countermeasure
4682 against active attacks where the attacker has to distinguish
4683 between bad padding and a MAC verification error. (CVE-2003-0078)
4685 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4686 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4687 Martin Vuagnoux (EPFL, Ilion)]
4689 *) Make the no-err option work as intended. The intention with no-err
4690 is not to have the whole error stack handling routines removed from
4691 libcrypto, it's only intended to remove all the function name and
4692 reason texts, thereby removing some of the footprint that may not
4693 be interesting if those errors aren't displayed anyway.
4695 NOTE: it's still possible for any application or module to have it's
4696 own set of error texts inserted. The routines are there, just not
4697 used by default when no-err is given.
4700 *) Add support for FreeBSD on IA64.
4701 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4703 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4704 Kerberos function mit_des_cbc_cksum(). Before this change,
4705 the value returned by DES_cbc_cksum() was like the one from
4706 mit_des_cbc_cksum(), except the bytes were swapped.
4707 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4709 *) Allow an application to disable the automatic SSL chain building.
4710 Before this a rather primitive chain build was always performed in
4711 ssl3_output_cert_chain(): an application had no way to send the
4712 correct chain if the automatic operation produced an incorrect result.
4714 Now the chain builder is disabled if either:
4716 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4718 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4720 The reasoning behind this is that an application would not want the
4721 auto chain building to take place if extra chain certificates are
4722 present and it might also want a means of sending no additional
4723 certificates (for example the chain has two certificates and the
4727 *) Add the possibility to build without the ENGINE framework.
4728 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4730 *) Under Win32 gmtime() can return NULL: check return value in
4731 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4734 *) DSA routines: under certain error conditions uninitialized BN objects
4735 could be freed. Solution: make sure initialization is performed early
4736 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4737 Nils Larsch <nla@trustcenter.de> via PR#459)
4740 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4741 checked on reconnect on the client side, therefore session resumption
4742 could still fail with a "ssl session id is different" error. This
4743 behaviour is masked when SSL_OP_ALL is used due to
4744 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4745 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4746 followup to PR #377.
4749 *) IA-32 assembler support enhancements: unified ELF targets, support
4750 for SCO/Caldera platforms, fix for Cygwin shared build.
4753 *) Add support for FreeBSD on sparc64. As a consequence, support for
4754 FreeBSD on non-x86 processors is separate from x86 processors on
4755 the config script, much like the NetBSD support.
4756 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4758 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4760 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4763 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4764 code (06) was taken as the first octet of the session ID and the last
4765 octet was ignored consequently. As a result SSLv2 client side session
4766 caching could not have worked due to the session ID mismatch between
4768 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4772 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4773 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4777 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4778 seems that in spite of existing for more than a year, many application
4779 author have done nothing to provide the necessary callbacks, which
4780 means that this particular engine will not work properly anywhere.
4781 This is a very unfortunate situation which forces us, in the name
4782 of usability, to give the hw_ncipher.c a static lock, which is part
4784 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4785 appear in 0.9.8 or later. We EXPECT application authors to have
4786 dealt properly with this when 0.9.8 is released (unless we actually
4787 make such changes in the libcrypto locking code that changes will
4788 have to be made anyway).
4791 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4792 octets have been read, EOF or an error occurs. Without this change
4793 some truncated ASN1 structures will not produce an error.
4796 *) Disable Heimdal support, since it hasn't been fully implemented.
4797 Still give the possibility to force the use of Heimdal, but with
4798 warnings and a request that patches get sent to openssl-dev.
4801 *) Add the VC-CE target, introduce the WINCE sysname, and add
4802 INSTALL.WCE and appropriate conditionals to make it build.
4803 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4805 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4806 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4807 edit numbers of the version.
4808 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4810 *) Introduce safe string copy and catenation functions
4811 (BUF_strlcpy() and BUF_strlcat()).
4812 [Ben Laurie (CHATS) and Richard Levitte]
4814 *) Avoid using fixed-size buffers for one-line DNs.
4815 [Ben Laurie (CHATS)]
4817 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4818 resizing buffers containing secrets, and use where appropriate.
4819 [Ben Laurie (CHATS)]
4821 *) Avoid using fixed size buffers for configuration file location.
4822 [Ben Laurie (CHATS)]
4824 *) Avoid filename truncation for various CA files.
4825 [Ben Laurie (CHATS)]
4827 *) Use sizeof in preference to magic numbers.
4828 [Ben Laurie (CHATS)]
4830 *) Avoid filename truncation in cert requests.
4831 [Ben Laurie (CHATS)]
4833 *) Add assertions to check for (supposedly impossible) buffer
4835 [Ben Laurie (CHATS)]
4837 *) Don't cache truncated DNS entries in the local cache (this could
4838 potentially lead to a spoofing attack).
4839 [Ben Laurie (CHATS)]
4841 *) Fix various buffers to be large enough for hex/decimal
4842 representations in a platform independent manner.
4843 [Ben Laurie (CHATS)]
4845 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4846 resizing buffers containing secrets, and use where appropriate.
4847 [Ben Laurie (CHATS)]
4849 *) Add BIO_indent() to avoid much slightly worrying code to do
4851 [Ben Laurie (CHATS)]
4853 *) Convert sprintf()/BIO_puts() to BIO_printf().
4854 [Ben Laurie (CHATS)]
4856 *) buffer_gets() could terminate with the buffer only half
4858 [Ben Laurie (CHATS)]
4860 *) Add assertions to prevent user-supplied crypto functions from
4861 overflowing internal buffers by having large block sizes, etc.
4862 [Ben Laurie (CHATS)]
4864 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4866 [Ben Laurie (CHATS)]
4868 *) Eliminate unused copy of key in RC4.
4869 [Ben Laurie (CHATS)]
4871 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4872 [Ben Laurie (CHATS)]
4874 *) Fix off-by-one error in EGD path.
4875 [Ben Laurie (CHATS)]
4877 *) If RANDFILE path is too long, ignore instead of truncating.
4878 [Ben Laurie (CHATS)]
4880 *) Eliminate unused and incorrectly sized X.509 structure
4882 [Ben Laurie (CHATS)]
4884 *) Eliminate unused and dangerous function knumber().
4885 [Ben Laurie (CHATS)]
4887 *) Eliminate unused and dangerous structure, KSSL_ERR.
4888 [Ben Laurie (CHATS)]
4890 *) Protect against overlong session ID context length in an encoded
4891 session object. Since these are local, this does not appear to be
4893 [Ben Laurie (CHATS)]
4895 *) Change from security patch (see 0.9.6e below) that did not affect
4896 the 0.9.6 release series:
4898 Remote buffer overflow in SSL3 protocol - an attacker could
4899 supply an oversized master key in Kerberos-enabled versions.
4901 [Ben Laurie (CHATS)]
4903 *) Change the SSL kerb5 codes to match RFC 2712.
4906 *) Make -nameopt work fully for req and add -reqopt switch.
4907 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4909 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4910 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4912 *) Make sure tests can be performed even if the corresponding algorithms
4913 have been removed entirely. This was also the last step to make
4914 OpenSSL compilable with DJGPP under all reasonable conditions.
4915 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4917 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4918 to allow version independent disabling of normally unselected ciphers,
4919 which may be activated as a side-effect of selecting a single cipher.
4921 (E.g., cipher list string "RSA" enables ciphersuites that are left
4922 out of "ALL" because they do not provide symmetric encryption.
4923 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4924 [Lutz Jaenicke, Bodo Moeller]
4926 *) Add appropriate support for separate platform-dependent build
4927 directories. The recommended way to make a platform-dependent
4928 build directory is the following (tested on Linux), maybe with
4931 # Place yourself outside of the OpenSSL source tree. In
4932 # this example, the environment variable OPENSSL_SOURCE
4933 # is assumed to contain the absolute OpenSSL source directory.
4934 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4935 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4936 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4937 mkdir -p `dirname $F`
4938 ln -s $OPENSSL_SOURCE/$F $F
4941 To be absolutely sure not to disturb the source tree, a "make clean"
4942 is a good thing. If it isn't successfull, don't worry about it,
4943 it probably means the source directory is very clean.
4946 *) Make sure any ENGINE control commands make local copies of string
4947 pointers passed to them whenever necessary. Otherwise it is possible
4948 the caller may have overwritten (or deallocated) the original string
4949 data when a later ENGINE operation tries to use the stored values.
4950 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4952 *) Improve diagnostics in file reading and command-line digests.
4953 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4955 *) Add AES modes CFB and OFB to the object database. Correct an
4956 error in AES-CFB decryption.
4959 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4960 allows existing EVP_CIPHER_CTX structures to be reused after
4961 calling EVP_*Final(). This behaviour is used by encryption
4962 BIOs and some applications. This has the side effect that
4963 applications must explicitly clean up cipher contexts with
4964 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4967 *) Check the values of dna and dnb in bn_mul_recursive before calling
4968 bn_mul_comba (a non zero value means the a or b arrays do not contain
4969 n2 elements) and fallback to bn_mul_normal if either is not zero.
4972 *) Fix escaping of non-ASCII characters when using the -subj option
4973 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4976 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4977 form for "surname", serialNumber has no short form.
4978 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4979 therefore remove "mail" short name for "internet 7".
4980 The OID for unique identifiers in X509 certificates is
4981 x500UniqueIdentifier, not uniqueIdentifier.
4982 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4985 *) Add an "init" command to the ENGINE config module and auto initialize
4986 ENGINEs. Without any "init" command the ENGINE will be initialized
4987 after all ctrl commands have been executed on it. If init=1 the
4988 ENGINE is initailized at that point (ctrls before that point are run
4989 on the uninitialized ENGINE and after on the initialized one). If
4990 init=0 then the ENGINE will not be iniatialized at all.
4993 *) Fix the 'app_verify_callback' interface so that the user-defined
4994 argument is actually passed to the callback: In the
4995 SSL_CTX_set_cert_verify_callback() prototype, the callback
4996 declaration has been changed from
4999 int (*cb)(X509_STORE_CTX *,void *);
5000 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5001 i=s->ctx->app_verify_callback(&ctx)
5002 has been changed into
5003 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5005 To update applications using SSL_CTX_set_cert_verify_callback(),
5006 a dummy argument can be added to their callback functions.
5007 [D. K. Smetters <smetters@parc.xerox.com>]
5009 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5010 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5012 *) Add and OPENSSL_LOAD_CONF define which will cause
5013 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5014 This allows older applications to transparently support certain
5015 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5016 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5017 load the config file and OPENSSL_add_all_algorithms_conf() which will
5018 always load it have also been added.
5021 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5022 Adjust NIDs and EVP layer.
5023 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5025 *) Config modules support in openssl utility.
5027 Most commands now load modules from the config file,
5028 though in a few (such as version) this isn't done
5029 because it couldn't be used for anything.
5031 In the case of ca and req the config file used is
5032 the same as the utility itself: that is the -config
5033 command line option can be used to specify an
5037 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5038 use "openssl_conf" if filename is NULL use default openssl config file.
5041 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5042 config section name. Add a new flag to tolerate a missing config file
5043 and move code to CONF_modules_load_file().
5046 *) Support for crypto accelerator cards from Accelerated Encryption
5047 Processing, www.aep.ie. (Use engine 'aep')
5048 The support was copied from 0.9.6c [engine] and adapted/corrected
5049 to work with the new engine framework.
5050 [AEP Inc. and Richard Levitte]
5052 *) Support for SureWare crypto accelerator cards from Baltimore
5053 Technologies. (Use engine 'sureware')
5054 The support was copied from 0.9.6c [engine] and adapted
5055 to work with the new engine framework.
5058 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5059 make the newer ENGINE framework commands for the CHIL engine work.
5060 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5062 *) Make it possible to produce shared libraries on ReliantUNIX.
5063 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5065 *) Add the configuration target debug-linux-ppro.
5066 Make 'openssl rsa' use the general key loading routines
5067 implemented in apps.c, and make those routines able to
5068 handle the key format FORMAT_NETSCAPE and the variant
5070 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5072 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5073 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5075 *) Add -keyform to rsautl, and document -engine.
5076 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5078 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5079 BIO_R_NO_SUCH_FILE error code rather than the generic
5080 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5083 *) Add new functions
5085 ERR_peek_last_error_line
5086 ERR_peek_last_error_line_data.
5087 These are similar to
5090 ERR_peek_error_line_data,
5091 but report on the latest error recorded rather than the first one
5092 still in the error queue.
5093 [Ben Laurie, Bodo Moeller]
5095 *) default_algorithms option in ENGINE config module. This allows things
5097 default_algorithms = ALL
5098 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5101 *) Preliminary ENGINE config module.
5104 *) New experimental application configuration code.
5107 *) Change the AES code to follow the same name structure as all other
5108 symmetric ciphers, and behave the same way. Move everything to
5109 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5110 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5112 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5113 [Ben Laurie and Theo de Raadt]
5115 *) Add option to output public keys in req command.
5116 [Massimiliano Pala madwolf@openca.org]
5118 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5119 (up to about 10% better than before for P-192 and P-224).
5122 *) New functions/macros
5124 SSL_CTX_set_msg_callback(ctx, cb)
5125 SSL_CTX_set_msg_callback_arg(ctx, arg)
5126 SSL_set_msg_callback(ssl, cb)
5127 SSL_set_msg_callback_arg(ssl, arg)
5129 to request calling a callback function
5131 void cb(int write_p, int version, int content_type,
5132 const void *buf, size_t len, SSL *ssl, void *arg)
5134 whenever a protocol message has been completely received
5135 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5136 protocol version according to which the SSL library interprets
5137 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5138 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5139 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5140 specification (change_cipher_spec(20), alert(21), handshake(22)).
5141 'buf' and 'len' point to the actual message, 'ssl' to the
5142 SSL object, and 'arg' is the application-defined value set by
5143 SSL[_CTX]_set_msg_callback_arg().
5145 'openssl s_client' and 'openssl s_server' have new '-msg' options
5146 to enable a callback that displays all protocol messages.
5149 *) Change the shared library support so shared libraries are built as
5150 soon as the corresponding static library is finished, and thereby get
5151 openssl and the test programs linked against the shared library.
5152 This still only happens when the keyword "shard" has been given to
5153 the configuration scripts.
5155 NOTE: shared library support is still an experimental thing, and
5156 backward binary compatibility is still not guaranteed.
5157 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5159 *) Add support for Subject Information Access extension.
5160 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5162 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5163 additional bytes when new memory had to be allocated, not just
5164 when reusing an existing buffer.
5167 *) New command line and configuration option 'utf8' for the req command.
5168 This allows field values to be specified as UTF8 strings.
5171 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5172 runs for the former and machine-readable output for the latter.
5175 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5176 of the e-mail address in the DN (i.e., it will go into a certificate
5177 extension only). The new configuration file option 'email_in_dn = no'
5178 has the same effect.
5179 [Massimiliano Pala madwolf@openca.org]
5181 *) Change all functions with names starting with des_ to be starting
5182 with DES_ instead. Add wrappers that are compatible with libdes,
5183 but are named _ossl_old_des_*. Finally, add macros that map the
5184 des_* symbols to the corresponding _ossl_old_des_* if libdes
5185 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5186 desired, the des_* symbols will be mapped to DES_*, with one
5189 Since we provide two compatibility mappings, the user needs to
5190 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5191 compatibility is desired. The default (i.e., when that macro
5192 isn't defined) is OpenSSL 0.9.6c compatibility.
5194 There are also macros that enable and disable the support of old
5195 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5196 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5197 are defined, the default will apply: to support the old des routines.
5199 In either case, one must include openssl/des.h to get the correct
5200 definitions. Do not try to just include openssl/des_old.h, that
5203 NOTE: This is a major break of an old API into a new one. Software
5204 authors are encouraged to switch to the DES_ style functions. Some
5205 time in the future, des_old.h and the libdes compatibility functions
5206 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5207 default), and then completely removed.
5210 *) Test for certificates which contain unsupported critical extensions.
5211 If such a certificate is found during a verify operation it is
5212 rejected by default: this behaviour can be overridden by either
5213 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5214 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5215 X509_supported_extension() has also been added which returns 1 if a
5216 particular extension is supported.
5219 *) Modify the behaviour of EVP cipher functions in similar way to digests
5220 to retain compatibility with existing code.
5223 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5224 compatibility with existing code. In particular the 'ctx' parameter does
5225 not have to be to be initialized before the call to EVP_DigestInit() and
5226 it is tidied up after a call to EVP_DigestFinal(). New function
5227 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5228 EVP_MD_CTX_copy() changed to not require the destination to be
5229 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5230 requires the destination to be valid.
5232 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5233 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5236 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5237 so that complete 'Handshake' protocol structures are kept in memory
5238 instead of overwriting 'msg_type' and 'length' with 'body' data.
5241 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5242 [Massimo Santin via Richard Levitte]
5244 *) Major restructuring to the underlying ENGINE code. This includes
5245 reduction of linker bloat, separation of pure "ENGINE" manipulation
5246 (initialisation, etc) from functionality dealing with implementations
5247 of specific crypto iterfaces. This change also introduces integrated
5248 support for symmetric ciphers and digest implementations - so ENGINEs
5249 can now accelerate these by providing EVP_CIPHER and EVP_MD
5250 implementations of their own. This is detailed in crypto/engine/README
5251 as it couldn't be adequately described here. However, there are a few
5252 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5253 were changed in the original introduction of ENGINE code have now
5254 reverted back - the hooking from this code to ENGINE is now a good
5255 deal more passive and at run-time, operations deal directly with
5256 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5257 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5258 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5259 they were not being used by the framework as there is no concept of a
5260 BIGNUM_METHOD and they could not be generalised to the new
5261 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5262 ENGINE_cpy() has been removed as it cannot be consistently defined in
5266 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5269 *) Change mkdef.pl to sort symbols that get the same entry number,
5270 and make sure the automatically generated functions ERR_load_*
5271 become part of libeay.num as well.
5274 *) New function SSL_renegotiate_pending(). This returns true once
5275 renegotiation has been requested (either SSL_renegotiate() call
5276 or HelloRequest/ClientHello received from the peer) and becomes
5277 false once a handshake has been completed.
5278 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5279 sends a HelloRequest, but does not ensure that a handshake takes
5280 place. SSL_renegotiate_pending() is useful for checking if the
5281 client has followed the request.)
5284 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5285 By default, clients may request session resumption even during
5286 renegotiation (if session ID contexts permit); with this option,
5287 session resumption is possible only in the first handshake.
5289 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5290 more bits available for options that should not be part of
5291 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5294 *) Add some demos for certificate and certificate request creation.
5297 *) Make maximum certificate chain size accepted from the peer application
5298 settable (SSL*_get/set_max_cert_list()), as proposed by
5299 "Douglas E. Engert" <deengert@anl.gov>.
5302 *) Add support for shared libraries for Unixware-7
5303 (Boyd Lynn Gerber <gerberb@zenez.com>).
5306 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5307 be done prior to destruction. Use this to unload error strings from
5308 ENGINEs that load their own error strings. NB: This adds two new API
5309 functions to "get" and "set" this destroy handler in an ENGINE.
5312 *) Alter all existing ENGINE implementations (except "openssl" and
5313 "openbsd") to dynamically instantiate their own error strings. This
5314 makes them more flexible to be built both as statically-linked ENGINEs
5315 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5316 Also, add stub code to each that makes building them as self-contained
5317 shared-libraries easier (see README.ENGINE).
5320 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5321 implementations into applications that are completely implemented in
5322 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5323 commands that can be used to configure what shared-library to load and
5324 to control aspects of the way it is handled. Also, made an update to
5325 the README.ENGINE file that brings its information up-to-date and
5326 provides some information and instructions on the "dynamic" ENGINE
5327 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5330 *) Make it possible to unload ranges of ERR strings with a new
5331 "ERR_unload_strings" function.
5334 *) Add a copy() function to EVP_MD.
5337 *) Make EVP_MD routines take a context pointer instead of just the
5338 md_data void pointer.
5341 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5342 that the digest can only process a single chunk of data
5343 (typically because it is provided by a piece of
5344 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5345 is only going to provide a single chunk of data, and hence the
5346 framework needn't accumulate the data for oneshot drivers.
5349 *) As with "ERR", make it possible to replace the underlying "ex_data"
5350 functions. This change also alters the storage and management of global
5351 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5352 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5353 index counters. The API functions that use this state have been changed
5354 to take a "class_index" rather than pointers to the class's local STACK
5355 and counter, and there is now an API function to dynamically create new
5356 classes. This centralisation allows us to (a) plug a lot of the
5357 thread-safety problems that existed, and (b) makes it possible to clean
5358 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5359 such data would previously have always leaked in application code and
5360 workarounds were in place to make the memory debugging turn a blind eye
5361 to it. Application code that doesn't use this new function will still
5362 leak as before, but their memory debugging output will announce it now
5363 rather than letting it slide.
5365 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5366 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5367 has a return value to indicate success or failure.
5370 *) Make it possible to replace the underlying "ERR" functions such that the
5371 global state (2 LHASH tables and 2 locks) is only used by the "default"
5372 implementation. This change also adds two functions to "get" and "set"
5373 the implementation prior to it being automatically set the first time
5374 any other ERR function takes place. Ie. an application can call "get",
5375 pass the return value to a module it has just loaded, and that module
5376 can call its own "set" function using that value. This means the
5377 module's "ERR" operations will use (and modify) the error state in the
5378 application and not in its own statically linked copy of OpenSSL code.
5381 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5382 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5383 the operation, and provides a more encapsulated way for external code
5384 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5385 to use these functions rather than manually incrementing the counts.
5387 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5390 *) Add EVP test program.
5393 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5396 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5397 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5398 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5399 These allow a CRL to be built without having to access X509_CRL fields
5400 directly. Modify 'ca' application to use new functions.
5403 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5404 bug workarounds. Rollback attack detection is a security feature.
5405 The problem will only arise on OpenSSL servers when TLSv1 is not
5406 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5407 Software authors not wanting to support TLSv1 will have special reasons
5408 for their choice and can explicitly enable this option.
5409 [Bodo Moeller, Lutz Jaenicke]
5411 *) Rationalise EVP so it can be extended: don't include a union of
5412 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5413 (similar to those existing for EVP_CIPHER_CTX).
5418 EVP_MD_CTX_init(&md); /* new function call */
5419 EVP_DigestInit(&md, EVP_sha1());
5420 EVP_DigestUpdate(&md, in, len);
5421 EVP_DigestFinal(&md, out, NULL);
5422 EVP_MD_CTX_cleanup(&md); /* new function call */
5426 *) Make DES key schedule conform to the usual scheme, as well as
5427 correcting its structure. This means that calls to DES functions
5428 now have to pass a pointer to a des_key_schedule instead of a
5429 plain des_key_schedule (which was actually always a pointer
5432 des_key_schedule ks;
5434 des_set_key_checked(..., &ks);
5435 des_ncbc_encrypt(..., &ks, ...);
5437 (Note that a later change renames 'des_...' into 'DES_...'.)
5440 *) Initial reduction of linker bloat: the use of some functions, such as
5441 PEM causes large amounts of unused functions to be linked in due to
5442 poor organisation. For example pem_all.c contains every PEM function
5443 which has a knock on effect of linking in large amounts of (unused)
5444 ASN1 code. Grouping together similar functions and splitting unrelated
5445 functions prevents this.
5448 *) Cleanup of EVP macros.
5451 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5452 correct _ecb suffix.
5455 *) Add initial OCSP responder support to ocsp application. The
5456 revocation information is handled using the text based index
5457 use by the ca application. The responder can either handle
5458 requests generated internally, supplied in files (for example
5459 via a CGI script) or using an internal minimal server.
5462 *) Add configuration choices to get zlib compression for TLS.
5465 *) Changes to Kerberos SSL for RFC 2712 compliance:
5466 1. Implemented real KerberosWrapper, instead of just using
5467 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5468 2. Implemented optional authenticator field of KerberosWrapper.
5470 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5471 and authenticator structs; see crypto/krb5/.
5473 Generalized Kerberos calls to support multiple Kerberos libraries.
5474 [Vern Staats <staatsvr@asc.hpc.mil>,
5475 Jeffrey Altman <jaltman@columbia.edu>
5476 via Richard Levitte]
5478 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5479 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5480 values for each of the key sizes rather than having just
5481 parameters (and 'speed' generating keys each time).
5484 *) Speed up EVP routines.
5487 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5488 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5489 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5490 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5492 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5493 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5494 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5497 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5499 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5502 *) Added the OS2-EMX target.
5503 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5505 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5506 to support NCONF routines in extension code. New function CONF_set_nconf()
5507 to allow functions which take an NCONF to also handle the old LHASH
5508 structure: this means that the old CONF compatible routines can be
5509 retained (in particular wrt extensions) without having to duplicate the
5510 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5513 *) Enhance the general user interface with mechanisms for inner control
5514 and with possibilities to have yes/no kind of prompts.
5517 *) Change all calls to low level digest routines in the library and
5518 applications to use EVP. Add missing calls to HMAC_cleanup() and
5519 don't assume HMAC_CTX can be copied using memcpy().
5520 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5522 *) Add the possibility to control engines through control names but with
5523 arbitrary arguments instead of just a string.
5524 Change the key loaders to take a UI_METHOD instead of a callback
5525 function pointer. NOTE: this breaks binary compatibility with earlier
5526 versions of OpenSSL [engine].
5527 Adapt the nCipher code for these new conditions and add a card insertion
5531 *) Enhance the general user interface with mechanisms to better support
5532 dialog box interfaces, application-defined prompts, the possibility
5533 to use defaults (for example default passwords from somewhere else)
5534 and interrupts/cancellations.
5537 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5538 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5541 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5542 tidy up some unnecessarily weird code in 'sk_new()').
5543 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5545 *) Change the key loading routines for ENGINEs to use the same kind
5546 callback (pem_password_cb) as all other routines that need this
5550 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5551 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5552 than this minimum value is recommended.
5555 *) New random seeder for OpenVMS, using the system process statistics
5556 that are easily reachable.
5559 *) Windows apparently can't transparently handle global
5560 variables defined in DLLs. Initialisations such as:
5562 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5564 wont compile. This is used by the any applications that need to
5565 declare their own ASN1 modules. This was fixed by adding the option
5566 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5567 needed for static libraries under Win32.
5570 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5571 setting of purpose and trust fields. New X509_STORE trust and
5572 purpose functions and tidy up setting in other SSL functions.
5575 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5576 structure. These are inherited by X509_STORE_CTX when it is
5577 initialised. This allows various defaults to be set in the
5578 X509_STORE structure (such as flags for CRL checking and custom
5579 purpose or trust settings) for functions which only use X509_STORE_CTX
5580 internally such as S/MIME.
5582 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5583 trust settings if they are not set in X509_STORE. This allows X509_STORE
5584 purposes and trust (in S/MIME for example) to override any set by default.
5586 Add command line options for CRL checking to smime, s_client and s_server
5590 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5591 are set then the CRL is looked up in the X509_STORE structure and
5592 its validity and signature checked, then if the certificate is found
5593 in the CRL the verify fails with a revoked error.
5595 Various new CRL related callbacks added to X509_STORE_CTX structure.
5597 Command line options added to 'verify' application to support this.
5599 This needs some additional work, such as being able to handle multiple
5600 CRLs with different times, extension based lookup (rather than just
5601 by subject name) and ultimately more complete V2 CRL extension
5605 *) Add a general user interface API (crypto/ui/). This is designed
5606 to replace things like des_read_password and friends (backward
5607 compatibility functions using this new API are provided).
5608 The purpose is to remove prompting functions from the DES code
5609 section as well as provide for prompting through dialog boxes in
5610 a window system and the like.
5613 *) Add "ex_data" support to ENGINE so implementations can add state at a
5614 per-structure level rather than having to store it globally.
5617 *) Make it possible for ENGINE structures to be copied when retrieved by
5618 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5619 This causes the "original" ENGINE structure to act like a template,
5620 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5621 operational state can be localised to each ENGINE structure, despite the
5622 fact they all share the same "methods". New ENGINE structures returned in
5623 this case have no functional references and the return value is the single
5624 structural reference. This matches the single structural reference returned
5625 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5629 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5630 needs to match any other type at all we need to manually clear the
5634 *) Changes to the "openssl engine" utility to include;
5635 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5636 about an ENGINE's available control commands.
5637 - executing control commands from command line arguments using the
5638 '-pre' and '-post' switches. '-post' is only used if '-t' is
5639 specified and the ENGINE is successfully initialised. The syntax for
5640 the individual commands are colon-separated, for example;
5641 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5644 *) New dynamic control command support for ENGINEs. ENGINEs can now
5645 declare their own commands (numbers), names (strings), descriptions,
5646 and input types for run-time discovery by calling applications. A
5647 subset of these commands are implicitly classed as "executable"
5648 depending on their input type, and only these can be invoked through
5649 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5650 can be based on user input, config files, etc). The distinction is
5651 that "executable" commands cannot return anything other than a boolean
5652 result and can only support numeric or string input, whereas some
5653 discoverable commands may only be for direct use through
5654 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5655 pointers, or other custom uses. The "executable" commands are to
5656 support parameterisations of ENGINE behaviour that can be
5657 unambiguously defined by ENGINEs and used consistently across any
5658 OpenSSL-based application. Commands have been added to all the
5659 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5660 control over shared-library paths without source code alterations.
5663 *) Changed all ENGINE implementations to dynamically allocate their
5664 ENGINEs rather than declaring them statically. Apart from this being
5665 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5666 this also allows the implementations to compile without using the
5667 internal engine_int.h header.
5670 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5671 'const' value. Any code that should be able to modify a RAND_METHOD
5672 should already have non-const pointers to it (ie. they should only
5673 modify their own ones).
5676 *) Made a variety of little tweaks to the ENGINE code.
5677 - "atalla" and "ubsec" string definitions were moved from header files
5678 to C code. "nuron" string definitions were placed in variables
5679 rather than hard-coded - allowing parameterisation of these values
5680 later on via ctrl() commands.
5681 - Removed unused "#if 0"'d code.
5682 - Fixed engine list iteration code so it uses ENGINE_free() to release
5683 structural references.
5684 - Constified the RAND_METHOD element of ENGINE structures.
5685 - Constified various get/set functions as appropriate and added
5686 missing functions (including a catch-all ENGINE_cpy that duplicates
5687 all ENGINE values onto a new ENGINE except reference counts/state).
5688 - Removed NULL parameter checks in get/set functions. Setting a method
5689 or function to NULL is a way of cancelling out a previously set
5690 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5691 and doesn't justify the extra error symbols and code.
5692 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5693 flags from engine_int.h to engine.h.
5694 - Changed prototypes for ENGINE handler functions (init(), finish(),
5695 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5698 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5699 to the algorithm using long division. The binary algorithm can be
5700 used only if the modulus is odd. On 32-bit systems, it is faster
5701 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5702 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5703 up to 450 bits. In 64-bit environments, the binary algorithm
5704 appears to be advantageous for much longer moduli; here we use it
5705 for moduli up to 2048 bits.
5708 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5709 could not support the combine flag in choice fields.
5712 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5713 extensions from a certificate request to the certificate.
5716 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5717 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5718 file: this allows the display of the certificate about to be
5719 signed to be customised, to allow certain fields to be included
5720 or excluded and extension details. The old system didn't display
5721 multicharacter strings properly, omitted fields not in the policy
5722 and couldn't display additional details such as extensions.
5725 *) Function EC_POINTs_mul for multiple scalar multiplication
5726 of an arbitrary number of elliptic curve points
5727 \sum scalars[i]*points[i],
5728 optionally including the generator defined for the EC_GROUP:
5729 scalar*generator + \sum scalars[i]*points[i].
5731 EC_POINT_mul is a simple wrapper function for the typical case
5732 that the point list has just one item (besides the optional
5736 *) First EC_METHODs for curves over GF(p):
5738 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5739 operations and provides various method functions that can also
5740 operate with faster implementations of modular arithmetic.
5742 EC_GFp_mont_method() reuses most functions that are part of
5743 EC_GFp_simple_method, but uses Montgomery arithmetic.
5745 [Bodo Moeller; point addition and point doubling
5746 implementation directly derived from source code provided by
5747 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5749 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5750 crypto/ec/ec_lib.c):
5752 Curves are EC_GROUP objects (with an optional group generator)
5753 based on EC_METHODs that are built into the library.
5755 Points are EC_POINT objects based on EC_GROUP objects.
5757 Most of the framework would be able to handle curves over arbitrary
5758 finite fields, but as there are no obvious types for fields other
5759 than GF(p), some functions are limited to that for now.
5762 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5763 that the file contains a complete HTTP response.
5766 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5767 change the def and num file printf format specifier from "%-40sXXX"
5768 to "%-39s XXX". The latter will always guarantee a space after the
5769 field while the former will cause them to run together if the field
5770 is 40 of more characters long.
5773 *) Constify the cipher and digest 'method' functions and structures
5774 and modify related functions to take constant EVP_MD and EVP_CIPHER
5778 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5779 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5782 *) Modify EVP_Digest*() routines so they now return values. Although the
5783 internal software routines can never fail additional hardware versions
5787 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5789 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5790 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5793 ERR_R_NESTED_ASN1_ERROR
5795 ERR_R_MISSING_ASN1_EOS
5796 were 4 .. 9, conflicting with
5797 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5799 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5800 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5802 Add new error code 'ERR_R_INTERNAL_ERROR'.
5805 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5809 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5810 sets the subject name for a new request or supersedes the
5811 subject name in a given request. Formats that can be parsed are
5812 'CN=Some Name, OU=myOU, C=IT'
5814 'CN=Some Name/OU=myOU/C=IT'.
5816 Add options '-batch' and '-verbose' to 'openssl req'.
5817 [Massimiliano Pala <madwolf@hackmasters.net>]
5819 *) Introduce the possibility to access global variables through
5820 functions on platform were that's the best way to handle exporting
5821 global variables in shared libraries. To enable this functionality,
5822 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5823 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5824 is normally done by Configure or something similar).
5826 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5827 in the source file (foo.c) like this:
5829 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5830 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5832 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5833 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5835 OPENSSL_DECLARE_GLOBAL(int,foo);
5836 #define foo OPENSSL_GLOBAL_REF(foo)
5837 OPENSSL_DECLARE_GLOBAL(double,bar);
5838 #define bar OPENSSL_GLOBAL_REF(bar)
5840 The #defines are very important, and therefore so is including the
5841 header file everywhere where the defined globals are used.
5843 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5844 of ASN.1 items, but that structure is a bit different.
5846 The largest change is in util/mkdef.pl which has been enhanced with
5847 better and easier to understand logic to choose which symbols should
5848 go into the Windows .def files as well as a number of fixes and code
5849 cleanup (among others, algorithm keywords are now sorted
5850 lexicographically to avoid constant rewrites).
5853 *) In BN_div() keep a copy of the sign of 'num' before writing the
5854 result to 'rm' because if rm==num the value will be overwritten
5855 and produce the wrong result if 'num' is negative: this caused
5856 problems with BN_mod() and BN_nnmod().
5859 *) Function OCSP_request_verify(). This checks the signature on an
5860 OCSP request and verifies the signer certificate. The signer
5861 certificate is just checked for a generic purpose and OCSP request
5865 *) Add OCSP_check_validity() function to check the validity of OCSP
5866 responses. OCSP responses are prepared in real time and may only
5867 be a few seconds old. Simply checking that the current time lies
5868 between thisUpdate and nextUpdate max reject otherwise valid responses
5869 caused by either OCSP responder or client clock inaccuracy. Instead
5870 we allow thisUpdate and nextUpdate to fall within a certain period of
5871 the current time. The age of the response can also optionally be
5872 checked. Two new options -validity_period and -status_age added to
5876 *) If signature or public key algorithm is unrecognized print out its
5877 OID rather that just UNKNOWN.
5880 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5881 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5882 ID to be generated from the issuer certificate alone which can then be
5883 passed to OCSP_id_issuer_cmp().
5886 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5887 ASN1 modules to export functions returning ASN1_ITEM pointers
5888 instead of the ASN1_ITEM structures themselves. This adds several
5889 new macros which allow the underlying ASN1 function/structure to
5890 be accessed transparently. As a result code should not use ASN1_ITEM
5891 references directly (such as &X509_it) but instead use the relevant
5892 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5893 use of the new ASN1 code on platforms where exporting structures
5894 is problematical (for example in shared libraries) but exporting
5895 functions returning pointers to structures is not.
5898 *) Add support for overriding the generation of SSL/TLS session IDs.
5899 These callbacks can be registered either in an SSL_CTX or per SSL.
5900 The purpose of this is to allow applications to control, if they wish,
5901 the arbitrary values chosen for use as session IDs, particularly as it
5902 can be useful for session caching in multiple-server environments. A
5903 command-line switch for testing this (and any client code that wishes
5904 to use such a feature) has been added to "s_server".
5905 [Geoff Thorpe, Lutz Jaenicke]
5907 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5908 of the form '#if defined(...) || defined(...) || ...' and
5909 '#if !defined(...) && !defined(...) && ...'. This also avoids
5910 the growing number of special cases it was previously handling.
5913 *) Make all configuration macros available for application by making
5914 sure they are available in opensslconf.h, by giving them names starting
5915 with "OPENSSL_" to avoid conflicts with other packages and by making
5916 sure e_os2.h will cover all platform-specific cases together with
5918 Additionally, it is now possible to define configuration/platform-
5919 specific names (called "system identities"). In the C code, these
5920 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5921 macro with the name beginning with "OPENSSL_SYS_", which is determined
5922 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5926 *) New option -set_serial to 'req' and 'x509' this allows the serial
5927 number to use to be specified on the command line. Previously self
5928 signed certificates were hard coded with serial number 0 and the
5929 CA options of 'x509' had to use a serial number in a file which was
5933 *) New options to 'ca' utility to support V2 CRL entry extensions.
5934 Currently CRL reason, invalidity date and hold instruction are
5935 supported. Add new CRL extensions to V3 code and some new objects.
5938 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5939 disable standard block padding (aka PKCS#5 padding) in the EVP
5940 API, which was previously mandatory. This means that the data is
5941 not padded in any way and so the total length much be a multiple
5942 of the block size, otherwise an error occurs.
5945 *) Initial (incomplete) OCSP SSL support.
5948 *) New function OCSP_parse_url(). This splits up a URL into its host,
5949 port and path components: primarily to parse OCSP URLs. New -url
5950 option to ocsp utility.
5953 *) New nonce behavior. The return value of OCSP_check_nonce() now
5954 reflects the various checks performed. Applications can decide
5955 whether to tolerate certain situations such as an absent nonce
5956 in a response when one was present in a request: the ocsp application
5957 just prints out a warning. New function OCSP_add1_basic_nonce()
5958 this is to allow responders to include a nonce in a response even if
5959 the request is nonce-less.
5962 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5963 skipped when using openssl x509 multiple times on a single input file,
5964 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5967 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5968 set string type: to handle setting ASN1_TIME structures. Fix ca
5969 utility to correctly initialize revocation date of CRLs.
5972 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5973 the clients preferred ciphersuites and rather use its own preferences.
5974 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5975 Internet Explorer by ensuring unchanged hash method during stepup.
5976 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5979 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5980 to aes and add a new 'exist' option to print out symbols that don't
5984 *) Additional options to ocsp utility to allow flags to be set and
5985 additional certificates supplied.
5988 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5989 OCSP client a number of certificate to only verify the response
5993 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5994 handle the new API. Currently only ECB, CBC modes supported. Add new
5997 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5998 Encryption Standard (AES) Ciphersuites for Transport Layer
5999 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6000 not enabled by default and were not part of the "ALL" ciphersuite
6001 alias because they were not yet official; they could be
6002 explicitly requested by specifying the "AESdraft" ciphersuite
6003 group alias. In the final release of OpenSSL 0.9.7, the group
6004 alias is called "AES" and is part of "ALL".)
6005 [Ben Laurie, Steve Henson, Bodo Moeller]
6007 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6008 request to response.
6011 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6012 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6013 extract information from a certificate request. OCSP_response_create()
6014 creates a response and optionally adds a basic response structure.
6015 OCSP_basic_add1_status() adds a complete single response to a basic
6016 response and returns the OCSP_SINGLERESP structure just added (to allow
6017 extensions to be included for example). OCSP_basic_add1_cert() adds a
6018 certificate to a basic response and OCSP_basic_sign() signs a basic
6019 response with various flags. New helper functions ASN1_TIME_check()
6020 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6021 (converts ASN1_TIME to GeneralizedTime).
6024 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6025 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6026 structure from a certificate. X509_pubkey_digest() digests the public_key
6027 contents: this is used in various key identifiers.
6030 *) Make sk_sort() tolerate a NULL argument.
6031 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6033 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6034 passed by the function are trusted implicitly. If any of them signed the
6035 response then it is assumed to be valid and is not verified.
6038 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6039 to data. This was previously part of the PKCS7 ASN1 code. This
6040 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6041 [Steve Henson, reported by Kenneth R. Robinette
6042 <support@securenetterm.com>]
6044 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6045 routines: without these tracing memory leaks is very painful.
6046 Fix leaks in PKCS12 and PKCS7 routines.
6049 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6050 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6051 effectively meant GeneralizedTime would never be used. Now it
6052 is initialised to -1 but X509_time_adj() now has to check the value
6053 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6054 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6055 [Steve Henson, reported by Kenneth R. Robinette
6056 <support@securenetterm.com>]
6058 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6059 result in a zero length in the ASN1_INTEGER structure which was
6060 not consistent with the structure when d2i_ASN1_INTEGER() was used
6061 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6062 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6063 where it did not print out a minus for negative ASN1_INTEGER.
6066 *) Add summary printout to ocsp utility. The various functions which
6067 convert status values to strings have been renamed to:
6068 OCSP_response_status_str(), OCSP_cert_status_str() and
6069 OCSP_crl_reason_str() and are no longer static. New options
6070 to verify nonce values and to disable verification. OCSP response
6071 printout format cleaned up.
6074 *) Add additional OCSP certificate checks. These are those specified
6075 in RFC2560. This consists of two separate checks: the CA of the
6076 certificate being checked must either be the OCSP signer certificate
6077 or the issuer of the OCSP signer certificate. In the latter case the
6078 OCSP signer certificate must contain the OCSP signing extended key
6079 usage. This check is performed by attempting to match the OCSP
6080 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6081 in the OCSP_CERTID structures of the response.
6084 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6085 and related routines. This uses the standard OpenSSL certificate
6086 verify routines to perform initial checks (just CA validity) and
6087 to obtain the certificate chain. Then additional checks will be
6088 performed on the chain. Currently the root CA is checked to see
6089 if it is explicitly trusted for OCSP signing. This is used to set
6090 a root CA as a global signing root: that is any certificate that
6091 chains to that CA is an acceptable OCSP signing certificate.
6094 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6095 extensions from a separate configuration file.
6096 As when reading extensions from the main configuration file,
6097 the '-extensions ...' option may be used for specifying the
6099 [Massimiliano Pala <madwolf@comune.modena.it>]
6101 *) New OCSP utility. Allows OCSP requests to be generated or
6102 read. The request can be sent to a responder and the output
6103 parsed, outputed or printed in text form. Not complete yet:
6104 still needs to check the OCSP response validity.
6107 *) New subcommands for 'openssl ca':
6108 'openssl ca -status <serial>' prints the status of the cert with
6109 the given serial number (according to the index file).
6110 'openssl ca -updatedb' updates the expiry status of certificates
6112 [Massimiliano Pala <madwolf@comune.modena.it>]
6114 *) New '-newreq-nodes' command option to CA.pl. This is like
6115 '-newreq', but calls 'openssl req' with the '-nodes' option
6116 so that the resulting key is not encrypted.
6117 [Damien Miller <djm@mindrot.org>]
6119 *) New configuration for the GNU Hurd.
6120 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6122 *) Initial code to implement OCSP basic response verify. This
6123 is currently incomplete. Currently just finds the signer's
6124 certificate and verifies the signature on the response.
6127 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6128 value of OPENSSLDIR. This is available via the new '-d' option
6129 to 'openssl version', and is also included in 'openssl version -a'.
6132 *) Allowing defining memory allocation callbacks that will be given
6133 file name and line number information in additional arguments
6134 (a const char* and an int). The basic functionality remains, as
6135 well as the original possibility to just replace malloc(),
6136 realloc() and free() by functions that do not know about these
6137 additional arguments. To register and find out the current
6138 settings for extended allocation functions, the following
6139 functions are provided:
6141 CRYPTO_set_mem_ex_functions
6142 CRYPTO_set_locked_mem_ex_functions
6143 CRYPTO_get_mem_ex_functions
6144 CRYPTO_get_locked_mem_ex_functions
6146 These work the same way as CRYPTO_set_mem_functions and friends.
6147 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6148 extended allocation function is enabled.
6149 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6150 a conventional allocation function is enabled.
6151 [Richard Levitte, Bodo Moeller]
6153 *) Finish off removing the remaining LHASH function pointer casts.
6154 There should no longer be any prototype-casting required when using
6155 the LHASH abstraction, and any casts that remain are "bugs". See
6156 the callback types and macros at the head of lhash.h for details
6157 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6160 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6161 If /dev/[u]random devices are not available or do not return enough
6162 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6164 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6165 /etc/entropy will be queried once each in this sequence, quering stops
6166 when enough entropy was collected without querying more sockets.
6169 *) Change the Unix RAND_poll() variant to be able to poll several
6170 random devices, as specified by DEVRANDOM, until a sufficient amount
6171 of data has been collected. We spend at most 10 ms on each file
6172 (select timeout) and read in non-blocking mode. DEVRANDOM now
6173 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6174 (previously it was just the string "/dev/urandom"), so on typical
6175 platforms the 10 ms delay will never occur.
6176 Also separate out the Unix variant to its own file, rand_unix.c.
6177 For VMS, there's a currently-empty rand_vms.c.
6180 *) Move OCSP client related routines to ocsp_cl.c. These
6181 provide utility functions which an application needing
6182 to issue a request to an OCSP responder and analyse the
6183 response will typically need: as opposed to those which an
6184 OCSP responder itself would need which will be added later.
6186 OCSP_request_sign() signs an OCSP request with an API similar
6187 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6188 response. OCSP_response_get1_basic() extracts basic response
6189 from response. OCSP_resp_find_status(): finds and extracts status
6190 information from an OCSP_CERTID structure (which will be created
6191 when the request structure is built). These are built from lower
6192 level functions which work on OCSP_SINGLERESP structures but
6193 wont normally be used unless the application wishes to examine
6194 extensions in the OCSP response for example.
6196 Replace nonce routines with a pair of functions.
6197 OCSP_request_add1_nonce() adds a nonce value and optionally
6198 generates a random value. OCSP_check_nonce() checks the
6199 validity of the nonce in an OCSP response.
6202 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6203 This doesn't copy the supplied OCSP_CERTID and avoids the
6204 need to free up the newly created id. Change return type
6205 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6206 This can then be used to add extensions to the request.
6207 Deleted OCSP_request_new(), since most of its functionality
6208 is now in OCSP_REQUEST_new() (and the case insensitive name
6209 clash) apart from the ability to set the request name which
6210 will be added elsewhere.
6213 *) Update OCSP API. Remove obsolete extensions argument from
6214 various functions. Extensions are now handled using the new
6215 OCSP extension code. New simple OCSP HTTP function which
6216 can be used to send requests and parse the response.
6219 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6220 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6221 uses the special reorder version of SET OF to sort the attributes
6222 and reorder them to match the encoded order. This resolves a long
6223 standing problem: a verify on a PKCS7 structure just after signing
6224 it used to fail because the attribute order did not match the
6225 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6226 it uses the received order. This is necessary to tolerate some broken
6227 software that does not order SET OF. This is handled by encoding
6228 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6229 to produce the required SET OF.
6232 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6233 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6234 files to get correct declarations of the ASN.1 item variables.
6237 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6238 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6239 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6240 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6241 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6242 ASN1_ITEM and no wrapper functions.
6245 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6246 replace the old function pointer based I/O routines. Change most of
6247 the *_d2i_bio() and *_d2i_fp() functions to use these.
6250 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6251 lines, recognice more "algorithms" that can be deselected, and make
6252 it complain about algorithm deselection that isn't recognised.
6255 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6256 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6257 to use new functions. Add NO_ASN1_OLD which can be set to remove
6258 some old style ASN1 functions: this can be used to determine if old
6259 code will still work when these eventually go away.
6262 *) New extension functions for OCSP structures, these follow the
6263 same conventions as certificates and CRLs.
6266 *) New function X509V3_add1_i2d(). This automatically encodes and
6267 adds an extension. Its behaviour can be customised with various
6268 flags to append, replace or delete. Various wrappers added for
6269 certifcates and CRLs.
6272 *) Fix to avoid calling the underlying ASN1 print routine when
6273 an extension cannot be parsed. Correct a typo in the
6274 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6277 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6278 entries for variables.
6281 *) Add functionality to apps/openssl.c for detecting locking
6282 problems: As the program is single-threaded, all we have
6283 to do is register a locking callback using an array for
6284 storing which locks are currently held by the program.
6287 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6288 SSL_get_ex_data_X509_STORE_idx(), which is used in
6289 ssl_verify_cert_chain() and thus can be called at any time
6290 during TLS/SSL handshakes so that thread-safety is essential.
6291 Unfortunately, the ex_data design is not at all suited
6292 for multi-threaded use, so it probably should be abolished.
6295 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6296 [Broadcom, tweaked and integrated by Geoff Thorpe]
6298 *) Move common extension printing code to new function
6299 X509V3_print_extensions(). Reorganise OCSP print routines and
6300 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6303 *) New function X509_signature_print() to remove duplication in some
6307 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6308 set (this was treated exactly the same as SET OF previously). This
6309 is used to reorder the STACK representing the structure to match the
6310 encoding. This will be used to get round a problem where a PKCS7
6311 structure which was signed could not be verified because the STACK
6312 order did not reflect the encoded order.
6315 *) Reimplement the OCSP ASN1 module using the new code.
6318 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6319 for its ASN1 operations. The old style function pointers still exist
6320 for now but they will eventually go away.
6323 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6324 completely replaces the old ASN1 functionality with a table driven
6325 encoder and decoder which interprets an ASN1_ITEM structure describing
6326 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6327 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6328 has also been converted to the new form.
6331 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6332 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6333 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6334 for negative moduli.
6337 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6338 of not touching the result's sign bit.
6341 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6345 *) Changed the LHASH code to use prototypes for callbacks, and created
6346 macros to declare and implement thin (optionally static) functions
6347 that provide type-safety and avoid function pointer casting for the
6348 type-specific callbacks.
6351 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6353 [Veers Staats <staatsvr@asc.hpc.mil>,
6354 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6356 *) Reformat the FAQ so the different questions and answers can be divided
6357 in sections depending on the subject.
6360 *) Have the zlib compression code load ZLIB.DLL dynamically under
6364 *) New function BN_mod_sqrt for computing square roots modulo a prime
6365 (using the probabilistic Tonelli-Shanks algorithm unless
6366 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6367 be handled deterministically).
6368 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6370 *) Make BN_mod_inverse faster by explicitly handling small quotients
6371 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6372 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6375 *) New function BN_kronecker.
6378 *) Fix BN_gcd so that it works on negative inputs; the result is
6379 positive unless both parameters are zero.
6380 Previously something reasonably close to an infinite loop was
6381 possible because numbers could be growing instead of shrinking
6382 in the implementation of Euclid's algorithm.
6385 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6386 sign of the number in question.
6388 Fix BN_is_word(a,w) to work correctly for w == 0.
6390 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6391 because its test if the absolute value of 'a' equals 'w'.
6392 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6393 it exists mostly for use in the implementations of BN_is_zero(),
6394 BN_is_one(), and BN_is_word().
6397 *) New function BN_swap.
6400 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6401 the exponentiation functions are more likely to produce reasonable
6402 results on negative inputs.
6405 *) Change BN_mod_mul so that the result is always non-negative.
6406 Previously, it could be negative if one of the factors was negative;
6407 I don't think anyone really wanted that behaviour.
6410 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6411 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6412 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6413 and add new functions:
6422 BN_mod_lshift1_quick
6426 These functions always generate non-negative results.
6428 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6429 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6431 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6432 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6433 be reduced modulo m.
6434 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6437 The following entry accidentally appeared in the CHANGES file
6438 distributed with OpenSSL 0.9.7. The modifications described in
6439 it do *not* apply to OpenSSL 0.9.7.
6441 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6442 was actually never needed) and in BN_mul(). The removal in BN_mul()
6443 required a small change in bn_mul_part_recursive() and the addition
6444 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6445 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6446 bn_sub_words() and bn_add_words() except they take arrays with
6451 *) In 'openssl passwd', verify passwords read from the terminal
6452 unless the '-salt' option is used (which usually means that
6453 verification would just waste user's time since the resulting
6454 hash is going to be compared with some given password hash)
6455 or the new '-noverify' option is used.
6457 This is an incompatible change, but it does not affect
6458 non-interactive use of 'openssl passwd' (passwords on the command
6459 line, '-stdin' option, '-in ...' option) and thus should not
6463 *) Remove all references to RSAref, since there's no more need for it.
6466 *) Make DSO load along a path given through an environment variable
6467 (SHLIB_PATH) with shl_load().
6470 *) Constify the ENGINE code as a result of BIGNUM constification.
6471 Also constify the RSA code and most things related to it. In a
6472 few places, most notable in the depth of the ASN.1 code, ugly
6473 casts back to non-const were required (to be solved at a later
6477 *) Make it so the openssl application has all engines loaded by default.
6480 *) Constify the BIGNUM routines a little more.
6483 *) Add the following functions:
6485 ENGINE_load_cswift()
6487 ENGINE_load_atalla()
6489 ENGINE_load_builtin_engines()
6491 That way, an application can itself choose if external engines that
6492 are built-in in OpenSSL shall ever be used or not. The benefit is
6493 that applications won't have to be linked with libdl or other dso
6494 libraries unless it's really needed.
6496 Changed 'openssl engine' to load all engines on demand.
6497 Changed the engine header files to avoid the duplication of some
6498 declarations (they differed!).
6501 *) 'openssl engine' can now list capabilities.
6504 *) Better error reporting in 'openssl engine'.
6507 *) Never call load_dh_param(NULL) in s_server.
6510 *) Add engine application. It can currently list engines by name and
6511 identity, and test if they are actually available.
6514 *) Improve RPM specification file by forcing symbolic linking and making
6515 sure the installed documentation is also owned by root.root.
6516 [Damien Miller <djm@mindrot.org>]
6518 *) Give the OpenSSL applications more possibilities to make use of
6519 keys (public as well as private) handled by engines.
6522 *) Add OCSP code that comes from CertCo.
6525 *) Add VMS support for the Rijndael code.
6528 *) Added untested support for Nuron crypto accelerator.
6531 *) Add support for external cryptographic devices. This code was
6532 previously distributed separately as the "engine" branch.
6533 [Geoff Thorpe, Richard Levitte]
6535 *) Rework the filename-translation in the DSO code. It is now possible to
6536 have far greater control over how a "name" is turned into a filename
6537 depending on the operating environment and any oddities about the
6538 different shared library filenames on each system.
6541 *) Support threads on FreeBSD-elf in Configure.
6544 *) Fix for SHA1 assembly problem with MASM: it produces
6545 warnings about corrupt line number information when assembling
6546 with debugging information. This is caused by the overlapping
6548 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6551 NCONF_get_number() has no error checking at all. As a replacement,
6552 NCONF_get_number_e() is defined (_e for "error checking") and is
6553 promoted strongly. The old NCONF_get_number is kept around for
6554 binary backward compatibility.
6555 Make it possible for methods to load from something other than a BIO,
6556 by providing a function pointer that is given a name instead of a BIO.
6557 For example, this could be used to load configuration data from an
6561 *) Fix for non blocking accept BIOs. Added new I/O special reason
6562 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6563 with non blocking I/O was not possible because no retry code was
6564 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6568 *) Added the beginnings of Rijndael support.
6571 *) Fix for bug in DirectoryString mask setting. Add support for
6572 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6573 to allow certificate printing to more controllable, additional
6574 'certopt' option to 'x509' to allow new printing options to be
6578 *) Clean old EAY MD5 hack from e_os.h.
6581 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6583 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6584 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6585 [Joe Orton, Steve Henson]
6587 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6589 *) Fix additional bug revealed by the NISCC test suite:
6591 Stop bug triggering large recursion when presented with
6592 certain ASN.1 tags (CVE-2003-0851)
6595 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6597 *) Fix various bugs revealed by running the NISCC test suite:
6599 Stop out of bounds reads in the ASN1 code when presented with
6600 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6602 If verify callback ignores invalid public key errors don't try to check
6603 certificate signature with the NULL public key.
6607 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6608 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6612 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6613 extra data after the compression methods not only for TLS 1.0
6614 but also for SSL 3.0 (as required by the specification).
6615 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6617 *) Change X509_certificate_type() to mark the key as exported/exportable
6618 when it's 512 *bits* long, not 512 bytes.
6621 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6623 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6624 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6625 a protocol version number mismatch like a decryption error
6626 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6629 *) Turn on RSA blinding by default in the default implementation
6630 to avoid a timing attack. Applications that don't want it can call
6631 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6632 They would be ill-advised to do so in most cases.
6633 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6635 *) Change RSA blinding code so that it works when the PRNG is not
6636 seeded (in this case, the secret RSA exponent is abused as
6637 an unpredictable seed -- if it is not unpredictable, there
6638 is no point in blinding anyway). Make RSA blinding thread-safe
6639 by remembering the creator's thread ID in rsa->blinding and
6640 having all other threads use local one-time blinding factors
6641 (this requires more computation than sharing rsa->blinding, but
6642 avoids excessive locking; and if an RSA object is not shared
6643 between threads, blinding will still be very fast).
6646 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6648 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6649 via timing by performing a MAC computation even if incorrrect
6650 block cipher padding has been found. This is a countermeasure
6651 against active attacks where the attacker has to distinguish
6652 between bad padding and a MAC verification error. (CVE-2003-0078)
6654 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6655 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6656 Martin Vuagnoux (EPFL, Ilion)]
6658 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6660 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6661 memory from it's contents. This is done with a counter that will
6662 place alternating values in each byte. This can be used to solve
6663 two issues: 1) the removal of calls to memset() by highly optimizing
6664 compilers, and 2) cleansing with other values than 0, since those can
6665 be read through on certain media, for example a swap space on disk.
6668 *) Bugfix: client side session caching did not work with external caching,
6669 because the session->cipher setting was not restored when reloading
6670 from the external cache. This problem was masked, when
6671 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6672 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6675 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6676 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6677 [Zeev Lieber <zeev-l@yahoo.com>]
6679 *) Undo an undocumented change introduced in 0.9.6e which caused
6680 repeated calls to OpenSSL_add_all_ciphers() and
6681 OpenSSL_add_all_digests() to be ignored, even after calling
6685 *) Change the default configuration reader to deal with last line not
6686 being properly terminated.
6689 *) Change X509_NAME_cmp() so it applies the special rules on handling
6690 DN values that are of type PrintableString, as well as RDNs of type
6691 emailAddress where the value has the type ia5String.
6692 [stefank@valicert.com via Richard Levitte]
6694 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6695 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6696 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6697 the bitwise-OR of the two for use by the majority of applications
6698 wanting this behaviour, and update the docs. The documented
6699 behaviour and actual behaviour were inconsistent and had been
6700 changing anyway, so this is more a bug-fix than a behavioural
6702 [Geoff Thorpe, diagnosed by Nadav Har'El]
6704 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6705 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6708 *) Fix initialization code race conditions in
6709 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6710 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6711 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6712 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6713 ssl2_get_cipher_by_char(),
6714 ssl3_get_cipher_by_char().
6715 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6717 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6718 the cached sessions are flushed, as the remove_cb() might use ex_data
6719 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6720 (see [openssl.org #212]).
6721 [Geoff Thorpe, Lutz Jaenicke]
6723 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6724 length, instead of the encoding length to d2i_ASN1_OBJECT.
6727 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6729 *) [In 0.9.6g-engine release:]
6730 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6731 [Lynn Gazis <lgazis@rainbow.com>]
6733 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6735 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6736 and get fix the header length calculation.
6737 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6738 Alon Kantor <alonk@checkpoint.com> (and others),
6741 *) Use proper error handling instead of 'assertions' in buffer
6742 overflow checks added in 0.9.6e. This prevents DoS (the
6743 assertions could call abort()).
6744 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6746 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6748 *) Add various sanity checks to asn1_get_length() to reject
6749 the ASN1 length bytes if they exceed sizeof(long), will appear
6750 negative or the content length exceeds the length of the
6752 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6754 *) Fix cipher selection routines: ciphers without encryption had no flags
6755 for the cipher strength set and where therefore not handled correctly
6756 by the selection routines (PR #130).
6759 *) Fix EVP_dsa_sha macro.
6763 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6764 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6765 that was added in OpenSSL 0.9.6d.
6767 As the countermeasure turned out to be incompatible with some
6768 broken SSL implementations, the new option is part of SSL_OP_ALL.
6769 SSL_OP_ALL is usually employed when compatibility with weird SSL
6770 implementations is desired (e.g. '-bugs' option to 's_client' and
6771 's_server'), so the new option is automatically set in many
6775 *) Changes in security patch:
6777 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6778 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6779 Air Force Materiel Command, USAF, under agreement number
6782 *) Add various sanity checks to asn1_get_length() to reject
6783 the ASN1 length bytes if they exceed sizeof(long), will appear
6784 negative or the content length exceeds the length of the
6785 supplied buffer. (CVE-2002-0659)
6786 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6788 *) Assertions for various potential buffer overflows, not known to
6790 [Ben Laurie (CHATS)]
6792 *) Various temporary buffers to hold ASCII versions of integers were
6793 too small for 64 bit platforms. (CVE-2002-0655)
6794 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6796 *) Remote buffer overflow in SSL3 protocol - an attacker could
6797 supply an oversized session ID to a client. (CVE-2002-0656)
6798 [Ben Laurie (CHATS)]
6800 *) Remote buffer overflow in SSL2 protocol - an attacker could
6801 supply an oversized client master key. (CVE-2002-0656)
6802 [Ben Laurie (CHATS)]
6804 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6806 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6807 encoded as NULL) with id-dsa-with-sha1.
6808 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6810 *) Check various X509_...() return values in apps/req.c.
6811 [Nils Larsch <nla@trustcenter.de>]
6813 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6814 an end-of-file condition would erronously be flagged, when the CRLF
6815 was just at the end of a processed block. The bug was discovered when
6816 processing data through a buffering memory BIO handing the data to a
6817 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6818 <ptsekov@syntrex.com> and Nedelcho Stanev.
6821 *) Implement a countermeasure against a vulnerability recently found
6822 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6823 before application data chunks to avoid the use of known IVs
6824 with data potentially chosen by the attacker.
6827 *) Fix length checks in ssl3_get_client_hello().
6830 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6831 to prevent ssl3_read_internal() from incorrectly assuming that
6832 ssl3_read_bytes() found application data while handshake
6833 processing was enabled when in fact s->s3->in_read_app_data was
6834 merely automatically cleared during the initial handshake.
6835 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6837 *) Fix object definitions for Private and Enterprise: they were not
6838 recognized in their shortname (=lowercase) representation. Extend
6839 obj_dat.pl to issue an error when using undefined keywords instead
6840 of silently ignoring the problem (Svenning Sorensen
6841 <sss@sss.dnsalias.net>).
6844 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6845 generators, i.e. generators other than 2 and 5. (Previously, the
6846 code did not properly initialise the 'add' and 'rem' values to
6847 BN_generate_prime().)
6849 In the new general case, we do not insist that 'generator' is
6850 actually a primitive root: This requirement is rather pointless;
6851 a generator of the order-q subgroup is just as good, if not
6855 *) Map new X509 verification errors to alerts. Discovered and submitted by
6856 Tom Wu <tom@arcot.com>.
6859 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6860 returning non-zero before the data has been completely received
6861 when using non-blocking I/O.
6862 [Bodo Moeller; problem pointed out by John Hughes]
6864 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6865 [Ben Laurie, Lutz Jaenicke]
6867 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6868 Yoram Zahavi <YoramZ@gilian.com>).
6871 *) Add information about CygWin 1.3 and on, and preserve proper
6872 configuration for the versions before that.
6873 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6875 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6876 check whether we deal with a copy of a session and do not delete from
6877 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6878 <izhar@checkpoint.com>.
6881 *) Do not store session data into the internal session cache, if it
6882 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6883 flag is set). Proposed by Aslam <aslam@funk.com>.
6886 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6890 *) [In 0.9.6d-engine release:]
6891 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6892 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6894 *) Add the configuration target linux-s390x.
6895 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6897 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6898 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6899 variable as an indication that a ClientHello message has been
6900 received. As the flag value will be lost between multiple
6901 invocations of ssl3_accept when using non-blocking I/O, the
6902 function may not be aware that a handshake has actually taken
6903 place, thus preventing a new session from being added to the
6906 To avoid this problem, we now set s->new_session to 2 instead of
6907 using a local variable.
6908 [Lutz Jaenicke, Bodo Moeller]
6910 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6911 if the SSL_R_LENGTH_MISMATCH error is detected.
6912 [Geoff Thorpe, Bodo Moeller]
6914 *) New 'shared_ldflag' column in Configure platform table.
6917 *) Fix EVP_CIPHER_mode macro.
6918 ["Dan S. Camper" <dan@bti.net>]
6920 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6921 type, we must throw them away by setting rr->length to 0.
6922 [D P Chang <dpc@qualys.com>]
6924 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6926 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6927 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6928 worked incorrectly for those cases where range = 10..._2 and
6929 3*range is two bits longer than range.)
6932 *) Only add signing time to PKCS7 structures if it is not already
6936 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6937 OBJ_ld_ce should be OBJ_id_ce.
6938 Also some ip-pda OIDs in crypto/objects/objects.txt were
6939 incorrect (cf. RFC 3039).
6940 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6942 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6943 returns early because it has nothing to do.
6944 [Andy Schneider <andy.schneider@bjss.co.uk>]
6946 *) [In 0.9.6c-engine release:]
6947 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6948 [Andy Schneider <andy.schneider@bjss.co.uk>]
6950 *) [In 0.9.6c-engine release:]
6951 Add support for Cryptographic Appliance's keyserver technology.
6952 (Use engine 'keyclient')
6953 [Cryptographic Appliances and Geoff Thorpe]
6955 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6956 is called via tools/c89.sh because arguments have to be
6957 rearranged (all '-L' options must appear before the first object
6959 [Richard Shapiro <rshapiro@abinitio.com>]
6961 *) [In 0.9.6c-engine release:]
6962 Add support for Broadcom crypto accelerator cards, backported
6964 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6966 *) [In 0.9.6c-engine release:]
6967 Add support for SureWare crypto accelerator cards from
6968 Baltimore Technologies. (Use engine 'sureware')
6969 [Baltimore Technologies and Mark Cox]
6971 *) [In 0.9.6c-engine release:]
6972 Add support for crypto accelerator cards from Accelerated
6973 Encryption Processing, www.aep.ie. (Use engine 'aep')
6974 [AEP Inc. and Mark Cox]
6976 *) Add a configuration entry for gcc on UnixWare.
6977 [Gary Benson <gbenson@redhat.com>]
6979 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6980 messages are stored in a single piece (fixed-length part and
6981 variable-length part combined) and fix various bugs found on the way.
6984 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6985 instead. BIO_gethostbyname() does not know what timeouts are
6986 appropriate, so entries would stay in cache even when they have
6988 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6990 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6991 faced with a pathologically small ClientHello fragment that does
6992 not contain client_version: Instead of aborting with an error,
6993 simply choose the highest available protocol version (i.e.,
6994 TLS 1.0 unless it is disabled). In practice, ClientHello
6995 messages are never sent like this, but this change gives us
6996 strictly correct behaviour at least for TLS.
6999 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7000 never resets s->method to s->ctx->method when called from within
7001 one of the SSL handshake functions.
7002 [Bodo Moeller; problem pointed out by Niko Baric]
7004 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7005 (sent using the client's version number) if client_version is
7006 smaller than the protocol version in use. Also change
7007 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7008 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7009 the client will at least see that alert.
7012 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7016 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7017 client receives HelloRequest while in a handshake.
7018 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7020 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7021 should end in 'break', not 'goto end' which circumvents various
7022 cleanups done in state SSL_ST_OK. But session related stuff
7023 must be disabled for SSL_ST_OK in the case that we just sent a
7026 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7027 before just sending a HelloRequest.
7028 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7030 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7031 reveal whether illegal block cipher padding was found or a MAC
7032 verification error occured. (Neither SSLerr() codes nor alerts
7033 are directly visible to potential attackers, but the information
7034 may leak via logfiles.)
7036 Similar changes are not required for the SSL 2.0 implementation
7037 because the number of padding bytes is sent in clear for SSL 2.0,
7038 and the extra bytes are just ignored. However ssl/s2_pkt.c
7039 failed to verify that the purported number of padding bytes is in
7043 *) Add OpenUNIX-8 support including shared libraries
7044 (Boyd Lynn Gerber <gerberb@zenez.com>).
7047 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7048 'wristwatch attack' using huge encoding parameters (cf.
7049 James H. Manger's CRYPTO 2001 paper). Note that the
7050 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7051 encoding parameters and hence was not vulnerable.
7054 *) BN_sqr() bug fix.
7055 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7057 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7058 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7059 followed by modular reduction.
7060 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7062 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7063 equivalent based on BN_pseudo_rand() instead of BN_rand().
7066 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7067 This function was broken, as the check for a new client hello message
7068 to handle SGC did not allow these large messages.
7069 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7072 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7075 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7076 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7079 *) Rework the configuration and shared library support for Tru64 Unix.
7080 The configuration part makes use of modern compiler features and
7081 still retains old compiler behavior for those that run older versions
7082 of the OS. The shared library support part includes a variant that
7083 uses the RPATH feature, and is available through the special
7084 configuration target "alpha-cc-rpath", which will never be selected
7086 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7088 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7089 with the same message size as in ssl3_get_certificate_request().
7090 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7091 messages might inadvertently be reject as too long.
7092 [Petr Lampa <lampa@fee.vutbr.cz>]
7094 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7097 *) Modified SSL library such that the verify_callback that has been set
7098 specificly for an SSL object with SSL_set_verify() is actually being
7099 used. Before the change, a verify_callback set with this function was
7100 ignored and the verify_callback() set in the SSL_CTX at the time of
7101 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7102 to allow the necessary settings.
7105 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7106 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7107 done automatically (in contradiction to the requirements of the C
7108 standard). This made problems when used from OpenSSH.
7111 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7112 dh->length and always used
7114 BN_rand_range(priv_key, dh->p).
7116 BN_rand_range() is not necessary for Diffie-Hellman, and this
7117 specific range makes Diffie-Hellman unnecessarily inefficient if
7118 dh->length (recommended exponent length) is much smaller than the
7119 length of dh->p. We could use BN_rand_range() if the order of
7120 the subgroup was stored in the DH structure, but we only have
7125 BN_rand(priv_key, l, ...)
7127 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7133 RSA_eay_public_encrypt
7134 RSA_eay_private_decrypt
7135 RSA_eay_private_encrypt (signing)
7136 RSA_eay_public_decrypt (signature verification)
7138 (default implementations for RSA_public_encrypt,
7139 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7140 always reject numbers >= n.
7143 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7144 to synchronize access to 'locking_thread'. This is necessary on
7145 systems where access to 'locking_thread' (an 'unsigned long'
7146 variable) is not atomic.
7149 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7150 *before* setting the 'crypto_lock_rand' flag. The previous code had
7151 a race condition if 0 is a valid thread ID.
7152 [Travis Vitek <vitek@roguewave.com>]
7154 *) Add support for shared libraries under Irix.
7155 [Albert Chin-A-Young <china@thewrittenword.com>]
7157 *) Add configuration option to build on Linux on both big-endian and
7159 [Ralf Baechle <ralf@uni-koblenz.de>]
7161 *) Add the possibility to create shared libraries on HP-UX.
7164 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7166 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7167 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7168 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7169 PRNG state recovery was possible based on the output of
7170 one PRNG request appropriately sized to gain knowledge on
7171 'md' followed by enough consecutive 1-byte PRNG requests
7172 to traverse all of 'state'.
7174 1. When updating 'md_local' (the current thread's copy of 'md')
7175 during PRNG output generation, hash all of the previous
7176 'md_local' value, not just the half used for PRNG output.
7178 2. Make the number of bytes from 'state' included into the hash
7179 independent from the number of PRNG bytes requested.
7181 The first measure alone would be sufficient to avoid
7182 Markku-Juhani's attack. (Actually it had never occurred
7183 to me that the half of 'md_local' used for chaining was the
7184 half from which PRNG output bytes were taken -- I had always
7185 assumed that the secret half would be used.) The second
7186 measure makes sure that additional data from 'state' is never
7187 mixed into 'md_local' in small portions; this heuristically
7188 further strengthens the PRNG.
7191 *) Fix crypto/bn/asm/mips3.s.
7194 *) When only the key is given to "enc", the IV is undefined. Print out
7195 an error message in this case.
7198 *) Handle special case when X509_NAME is empty in X509 printing routines.
7201 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7202 positive and less than q.
7205 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7206 used: it isn't thread safe and the add_lock_callback should handle
7208 [Paul Rose <Paul.Rose@bridge.com>]
7210 *) Verify that incoming data obeys the block size in
7211 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7215 [Ulf Möller, Bodo Möller]
7217 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7218 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7219 when fixing the server behaviour for backwards-compatible 'client
7220 hello' messages. (Note that the attack is impractical against
7221 SSL 3.0 and TLS 1.0 anyway because length and version checking
7222 means that the probability of guessing a valid ciphertext is
7223 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7226 Before 0.9.5, the countermeasure (hide the error by generating a
7227 random 'decryption result') did not work properly because
7228 ERR_clear_error() was missing, meaning that SSL_get_error() would
7229 detect the supposedly ignored error.
7231 Both problems are now fixed.
7234 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7235 (previously it was 1024).
7238 *) Fix for compatibility mode trust settings: ignore trust settings
7239 unless some valid trust or reject settings are present.
7242 *) Fix for blowfish EVP: its a variable length cipher.
7245 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7246 parameters in DSA public key structures and return an error in the
7247 DSA routines if parameters are absent.
7250 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7251 in the current directory if neither $RANDFILE nor $HOME was set.
7252 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7253 caused some confusion to Windows users who haven't defined $HOME.
7254 Thus RAND_file_name() is changed again: e_os.h can define a
7255 DEFAULT_HOME, which will be used if $HOME is not set.
7256 For Windows, we use "C:"; on other platforms, we still require
7257 environment variables.
7259 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7260 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7261 having multiple threads call RAND_poll() concurrently.
7264 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7265 combination of a flag and a thread ID variable.
7266 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7267 flag), *other* threads can enter ssleay_add_bytes without obeying
7268 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7269 that they do not hold after the first thread unsets add_do_not_lock).
7272 *) Change bctest again: '-x' expressions are not available in all
7276 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7278 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7279 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7281 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7282 the default extension for executables, if any. Also, make the perl
7283 scripts that use symlink() to test if it really exists and use "cp"
7284 if it doesn't. All this made OpenSSL compilable and installable in
7288 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7289 If SEQUENCE is length is indefinite just set c->slen to the total
7290 amount of data available.
7291 [Steve Henson, reported by shige@FreeBSD.org]
7292 [This change does not apply to 0.9.7.]
7294 *) Change bctest to avoid here-documents inside command substitution
7295 (workaround for FreeBSD /bin/sh bug).
7296 For compatibility with Ultrix, avoid shell functions (introduced
7297 in the bctest version that searches along $PATH).
7300 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7301 with des_encrypt() defined on some operating systems, like Solaris
7305 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7306 On the Importance of Eliminating Errors in Cryptographic
7307 Computations, J. Cryptology 14 (2001) 2, 101-119,
7308 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7311 *) MIPS assembler BIGNUM division bug fix.
7314 *) Disabled incorrect Alpha assembler code.
7317 *) Fix PKCS#7 decode routines so they correctly update the length
7318 after reading an EOC for the EXPLICIT tag.
7320 [This change does not apply to 0.9.7.]
7322 *) Fix bug in PKCS#12 key generation routines. This was triggered
7323 if a 3DES key was generated with a 0 initial byte. Include
7324 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7325 (but broken) behaviour.
7328 *) Enhance bctest to search for a working bc along $PATH and print
7330 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7332 *) Fix memory leaks in err.c: free err_data string if necessary;
7333 don't write to the wrong index in ERR_set_error_data.
7336 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7340 *) Replace rdtsc with _emit statements for VC++ version 5.
7341 [Jeremy Cooper <jeremy@baymoo.org>]
7343 *) Make it possible to reuse SSLv2 sessions.
7346 *) In copy_email() check for >= 0 as a return value for
7347 X509_NAME_get_index_by_NID() since 0 is a valid index.
7348 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7350 *) Avoid coredump with unsupported or invalid public keys by checking if
7351 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7352 PKCS7_verify() fails with non detached data.
7355 *) Don't use getenv in library functions when run as setuid/setgid.
7356 New function OPENSSL_issetugid().
7359 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7360 due to incorrect handling of multi-threading:
7362 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7364 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7366 3. Count how many times MemCheck_off() has been called so that
7367 nested use can be treated correctly. This also avoids
7368 inband-signalling in the previous code (which relied on the
7369 assumption that thread ID 0 is impossible).
7372 *) Add "-rand" option also to s_client and s_server.
7375 *) Fix CPU detection on Irix 6.x.
7376 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7377 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7379 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7382 [This change does not apply to 0.9.7.]
7384 *) Use the cached encoding of an X509_NAME structure rather than
7385 copying it. This is apparently the reason for the libsafe "errors"
7386 but the code is actually correct.
7389 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7390 Bleichenbacher's DSA attack.
7391 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7392 to be set and top=0 forces the highest bit to be set; top=-1 is new
7393 and leaves the highest bit random.
7394 [Ulf Moeller, Bodo Moeller]
7396 *) In the NCONF_...-based implementations for CONF_... queries
7397 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7398 a temporary CONF structure with the data component set to NULL
7399 (which gives segmentation faults in lh_retrieve).
7400 Instead, use NULL for the CONF pointer in CONF_get_string and
7401 CONF_get_number (which may use environment variables) and directly
7402 return NULL from CONF_get_section.
7405 *) Fix potential buffer overrun for EBCDIC.
7408 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7409 keyUsage if basicConstraints absent for a CA.
7412 *) Make SMIME_write_PKCS7() write mail header values with a format that
7413 is more generally accepted (no spaces before the semicolon), since
7414 some programs can't parse those values properly otherwise. Also make
7415 sure BIO's that break lines after each write do not create invalid
7419 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7420 macros previously used would not encode an empty SEQUENCE OF
7421 and break the signature.
7423 [This change does not apply to 0.9.7.]
7425 *) Zero the premaster secret after deriving the master secret in
7429 *) Add some EVP_add_digest_alias registrations (as found in
7430 OpenSSL_add_all_digests()) to SSL_library_init()
7431 aka OpenSSL_add_ssl_algorithms(). This provides improved
7432 compatibility with peers using X.509 certificates
7433 with unconventional AlgorithmIdentifier OIDs.
7436 *) Fix for Irix with NO_ASM.
7437 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7439 *) ./config script fixes.
7440 [Ulf Moeller, Richard Levitte]
7442 *) Fix 'openssl passwd -1'.
7445 *) Change PKCS12_key_gen_asc() so it can cope with non null
7446 terminated strings whose length is passed in the passlen
7447 parameter, for example from PEM callbacks. This was done
7448 by adding an extra length parameter to asc2uni().
7449 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7451 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7452 call failed, free the DSA structure.
7455 *) Fix to uni2asc() to cope with zero length Unicode strings.
7456 These are present in some PKCS#12 files.
7459 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7460 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7461 when writing a 32767 byte record.
7462 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7464 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7465 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7467 (RSA objects have a reference count access to which is protected
7468 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7469 so they are meant to be shared between threads.)
7470 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7471 "Reddie, Steven" <Steven.Reddie@ca.com>]
7473 *) Fix a deadlock in CRYPTO_mem_leaks().
7476 *) Use better test patterns in bntest.
7479 *) rand_win.c fix for Borland C.
7482 *) BN_rshift bugfix for n == 0.
7485 *) Add a 'bctest' script that checks for some known 'bc' bugs
7486 so that 'make test' does not abort just because 'bc' is broken.
7489 *) Store verify_result within SSL_SESSION also for client side to
7490 avoid potential security hole. (Re-used sessions on the client side
7491 always resulted in verify_result==X509_V_OK, not using the original
7492 result of the server certificate verification.)
7495 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7496 SSL3_RT_APPLICATION_DATA, return 0.
7497 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7501 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7502 releases, have been re-implemented by renaming the previous
7503 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7504 and ssl3_read_internal, respectively, and adding 'peek' parameters
7505 to them. The new ssl[23]_{read,peek} functions are calls to
7506 ssl[23]_read_internal with the 'peek' flag set appropriately.
7507 A 'peek' parameter has also been added to ssl3_read_bytes, which
7508 does the actual work for ssl3_read_internal.
7511 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7512 the method-specific "init()" handler. Also clean up ex_data after
7513 calling the method-specific "finish()" handler. Previously, this was
7514 happening the other way round.
7517 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7518 The previous value, 12, was not always sufficient for BN_mod_exp().
7521 *) Make sure that shared libraries get the internal name engine with
7522 the full version number and not just 0. This should mark the
7523 shared libraries as not backward compatible. Of course, this should
7524 be changed again when we can guarantee backward binary compatibility.
7527 *) Fix typo in get_cert_by_subject() in by_dir.c
7528 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7530 *) Rework the system to generate shared libraries:
7532 - Make note of the expected extension for the shared libraries and
7533 if there is a need for symbolic links from for example libcrypto.so.0
7534 to libcrypto.so.0.9.7. There is extended info in Configure for
7537 - Make as few rebuilds of the shared libraries as possible.
7539 - Still avoid linking the OpenSSL programs with the shared libraries.
7541 - When installing, install the shared libraries separately from the
7545 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7547 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7548 and not in SSL_clear because the latter is also used by the
7549 accept/connect functions; previously, the settings made by
7550 SSL_set_read_ahead would be lost during the handshake.
7551 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7553 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7554 Previously, it would create entries for disableed algorithms no
7558 *) Added several new manual pages for SSL_* function.
7561 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7563 *) In ssl23_get_client_hello, generate an error message when faced
7564 with an initial SSL 3.0/TLS record that is too small to contain the
7565 first two bytes of the ClientHello message, i.e. client_version.
7566 (Note that this is a pathologic case that probably has never happened
7567 in real life.) The previous approach was to use the version number
7568 from the record header as a substitute; but our protocol choice
7569 should not depend on that one because it is not authenticated
7570 by the Finished messages.
7573 *) More robust randomness gathering functions for Windows.
7574 [Jeffrey Altman <jaltman@columbia.edu>]
7576 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7577 not set then we don't setup the error code for issuer check errors
7578 to avoid possibly overwriting other errors which the callback does
7579 handle. If an application does set the flag then we assume it knows
7580 what it is doing and can handle the new informational codes
7584 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7585 a general "ANY" type, as such it should be able to decode anything
7586 including tagged types. However it didn't check the class so it would
7587 wrongly interpret tagged types in the same way as their universal
7588 counterpart and unknown types were just rejected. Changed so that the
7589 tagged and unknown types are handled in the same way as a SEQUENCE:
7590 that is the encoding is stored intact. There is also a new type
7591 "V_ASN1_OTHER" which is used when the class is not universal, in this
7592 case we have no idea what the actual type is so we just lump them all
7596 *) On VMS, stdout may very well lead to a file that is written to
7597 in a record-oriented fashion. That means that every write() will
7598 write a separate record, which will be read separately by the
7599 programs trying to read from it. This can be very confusing.
7601 The solution is to put a BIO filter in the way that will buffer
7602 text until a linefeed is reached, and then write everything a
7603 line at a time, so every record written will be an actual line,
7604 not chunks of lines and not (usually doesn't happen, but I've
7605 seen it once) several lines in one record. BIO_f_linebuffer() is
7608 Currently, it's a VMS-only method, because that's where it has
7609 been tested well enough.
7612 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7613 it can return incorrect results.
7614 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7615 but it was in 0.9.6-beta[12].)
7618 *) Disable the check for content being present when verifying detached
7619 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7620 include zero length content when signing messages.
7623 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7624 BIO_ctrl (for BIO pairs).
7627 *) Add DSO method for VMS.
7630 *) Bug fix: Montgomery multiplication could produce results with the
7634 *) Add RPM specification openssl.spec and modify it to build three
7635 packages. The default package contains applications, application
7636 documentation and run-time libraries. The devel package contains
7637 include files, static libraries and function documentation. The
7638 doc package contains the contents of the doc directory. The original
7639 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7642 *) Add a large number of documentation files for many SSL routines.
7643 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7645 *) Add a configuration entry for Sony News 4.
7646 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7648 *) Don't set the two most significant bits to one when generating a
7649 random number < q in the DSA library.
7652 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7653 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7654 the underlying transport is blocking) if a handshake took place.
7655 (The default behaviour is needed by applications such as s_client
7656 and s_server that use select() to determine when to use SSL_read;
7657 but for applications that know in advance when to expect data, it
7658 just makes things more complicated.)
7661 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7665 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7666 work better on such systems.
7667 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7669 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7670 Update PKCS12_parse() so it copies the friendlyName and the
7671 keyid to the certificates aux info.
7674 *) Fix bug in PKCS7_verify() which caused an infinite loop
7675 if there was more than one signature.
7676 [Sven Uszpelkat <su@celocom.de>]
7678 *) Major change in util/mkdef.pl to include extra information
7679 about each symbol, as well as presenting variables as well
7680 as functions. This change means that there's n more need
7681 to rebuild the .num files when some algorithms are excluded.
7684 *) Allow the verify time to be set by an application,
7685 rather than always using the current time.
7688 *) Phase 2 verify code reorganisation. The certificate
7689 verify code now looks up an issuer certificate by a
7690 number of criteria: subject name, authority key id
7691 and key usage. It also verifies self signed certificates
7692 by the same criteria. The main comparison function is
7693 X509_check_issued() which performs these checks.
7695 Lot of changes were necessary in order to support this
7696 without completely rewriting the lookup code.
7698 Authority and subject key identifier are now cached.
7700 The LHASH 'certs' is X509_STORE has now been replaced
7701 by a STACK_OF(X509_OBJECT). This is mainly because an
7702 LHASH can't store or retrieve multiple objects with
7703 the same hash value.
7705 As a result various functions (which were all internal
7706 use only) have changed to handle the new X509_STORE
7707 structure. This will break anything that messed round
7708 with X509_STORE internally.
7710 The functions X509_STORE_add_cert() now checks for an
7711 exact match, rather than just subject name.
7713 The X509_STORE API doesn't directly support the retrieval
7714 of multiple certificates matching a given criteria, however
7715 this can be worked round by performing a lookup first
7716 (which will fill the cache with candidate certificates)
7717 and then examining the cache for matches. This is probably
7718 the best we can do without throwing out X509_LOOKUP
7719 entirely (maybe later...).
7721 The X509_VERIFY_CTX structure has been enhanced considerably.
7723 All certificate lookup operations now go via a get_issuer()
7724 callback. Although this currently uses an X509_STORE it
7725 can be replaced by custom lookups. This is a simple way
7726 to bypass the X509_STORE hackery necessary to make this
7727 work and makes it possible to use more efficient techniques
7728 in future. A very simple version which uses a simple
7729 STACK for its trusted certificate store is also provided
7730 using X509_STORE_CTX_trusted_stack().
7732 The verify_cb() and verify() callbacks now have equivalents
7733 in the X509_STORE_CTX structure.
7735 X509_STORE_CTX also has a 'flags' field which can be used
7736 to customise the verify behaviour.
7739 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7740 excludes S/MIME capabilities.
7743 *) When a certificate request is read in keep a copy of the
7744 original encoding of the signed data and use it when outputing
7745 again. Signatures then use the original encoding rather than
7746 a decoded, encoded version which may cause problems if the
7747 request is improperly encoded.
7750 *) For consistency with other BIO_puts implementations, call
7751 buffer_write(b, ...) directly in buffer_puts instead of calling
7754 In BIO_puts, increment b->num_write as in BIO_write.
7755 [Peter.Sylvester@EdelWeb.fr]
7757 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7758 BN_zero, we may not return a BIGNUM with an array consisting of
7762 *) Avoid calling abort() from within the library when problems are
7763 detected, except if preprocessor symbols have been defined
7764 (such as REF_CHECK, BN_DEBUG etc.).
7767 *) New openssl application 'rsautl'. This utility can be
7768 used for low level RSA operations. DER public key
7769 BIO/fp routines also added.
7772 *) New Configure entry and patches for compiling on QNX 4.
7773 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7775 *) A demo state-machine implementation was sponsored by
7776 Nuron (http://www.nuron.com/) and is now available in
7777 demos/state_machine.
7780 *) New options added to the 'dgst' utility for signature
7781 generation and verification.
7784 *) Unrecognized PKCS#7 content types are now handled via a
7785 catch all ASN1_TYPE structure. This allows unsupported
7786 types to be stored as a "blob" and an application can
7787 encode and decode it manually.
7790 *) Fix various signed/unsigned issues to make a_strex.c
7792 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7794 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7795 length if passed a buffer. ASN1_INTEGER_to_BN failed
7796 if passed a NULL BN and its argument was negative.
7797 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7799 *) Modification to PKCS#7 encoding routines to output definite
7800 length encoding. Since currently the whole structures are in
7801 memory there's not real point in using indefinite length
7802 constructed encoding. However if OpenSSL is compiled with
7803 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7806 *) Added BIO_vprintf() and BIO_vsnprintf().
7809 *) Added more prefixes to parse for in the the strings written
7810 through a logging bio, to cover all the levels that are available
7811 through syslog. The prefixes are now:
7813 PANIC, EMERG, EMR => LOG_EMERG
7814 ALERT, ALR => LOG_ALERT
7815 CRIT, CRI => LOG_CRIT
7816 ERROR, ERR => LOG_ERR
7817 WARNING, WARN, WAR => LOG_WARNING
7818 NOTICE, NOTE, NOT => LOG_NOTICE
7819 INFO, INF => LOG_INFO
7820 DEBUG, DBG => LOG_DEBUG
7822 and as before, if none of those prefixes are present at the
7823 beginning of the string, LOG_ERR is chosen.
7825 On Win32, the LOG_* levels are mapped according to this:
7827 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7828 LOG_WARNING => EVENTLOG_WARNING_TYPE
7829 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7833 *) Made it possible to reconfigure with just the configuration
7834 argument "reconf" or "reconfigure". The command line arguments
7835 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7836 and are retrieved from there when reconfiguring.
7840 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7842 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7845 *) The obj_dat.pl script was messing up the sorting of object
7846 names. The reason was that it compared the quoted version
7847 of strings as a result "OCSP" > "OCSP Signing" because
7848 " > SPACE. Changed script to store unquoted versions of
7849 names and add quotes on output. It was also omitting some
7850 names from the lookup table if they were given a default
7851 value (that is if SN is missing it is given the same
7852 value as LN and vice versa), these are now added on the
7853 grounds that if an object has a name we should be able to
7854 look it up. Finally added warning output when duplicate
7855 short or long names are found.
7858 *) Changes needed for Tandem NSK.
7859 [Scott Uroff <scott@xypro.com>]
7861 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7862 RSA_padding_check_SSLv23(), special padding was never detected
7863 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7864 version rollback attacks was not effective.
7866 In s23_clnt.c, don't use special rollback-attack detection padding
7867 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7868 client; similarly, in s23_srvr.c, don't do the rollback check if
7869 SSL 2.0 is the only protocol enabled in the server.
7872 *) Make it possible to get hexdumps of unprintable data with 'openssl
7873 asn1parse'. By implication, the functions ASN1_parse_dump() and
7874 BIO_dump_indent() are added.
7877 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7878 these print out strings and name structures based on various
7879 flags including RFC2253 support and proper handling of
7880 multibyte characters. Added options to the 'x509' utility
7881 to allow the various flags to be set.
7884 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7885 Also change the functions X509_cmp_current_time() and
7886 X509_gmtime_adj() work with an ASN1_TIME structure,
7887 this will enable certificates using GeneralizedTime in validity
7888 dates to be checked.
7891 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7892 negative public key encodings) on by default,
7893 NO_NEG_PUBKEY_BUG can be set to disable it.
7896 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7897 content octets. An i2c_ASN1_OBJECT is unnecessary because
7898 the encoding can be trivially obtained from the structure.
7901 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7902 not read locks (CRYPTO_r_[un]lock).
7905 *) A first attempt at creating official support for shared
7906 libraries through configuration. I've kept it so the
7907 default is static libraries only, and the OpenSSL programs
7908 are always statically linked for now, but there are
7909 preparations for dynamic linking in place.
7910 This has been tested on Linux and Tru64.
7913 *) Randomness polling function for Win9x, as described in:
7914 Peter Gutmann, Software Generation of Practically Strong
7918 *) Fix so PRNG is seeded in req if using an already existing
7922 *) New options to smime application. -inform and -outform
7923 allow alternative formats for the S/MIME message including
7924 PEM and DER. The -content option allows the content to be
7925 specified separately. This should allow things like Netscape
7926 form signing output easier to verify.
7929 *) Fix the ASN1 encoding of tags using the 'long form'.
7932 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7933 STRING types. These convert content octets to and from the
7934 underlying type. The actual tag and length octets are
7935 already assumed to have been read in and checked. These
7936 are needed because all other string types have virtually
7937 identical handling apart from the tag. By having versions
7938 of the ASN1 functions that just operate on content octets
7939 IMPLICIT tagging can be handled properly. It also allows
7940 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7941 and ASN1_INTEGER are identical apart from the tag.
7944 *) Change the handling of OID objects as follows:
7946 - New object identifiers are inserted in objects.txt, following
7947 the syntax given in objects.README.
7948 - objects.pl is used to process obj_mac.num and create a new
7950 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7953 This is currently kind of a hack, and the perl code in objects.pl
7954 isn't very elegant, but it works as I intended. The simplest way
7955 to check that it worked correctly is to look in obj_dat.h and
7956 check the array nid_objs and make sure the objects haven't moved
7957 around (this is important!). Additions are OK, as well as
7958 consistent name changes.
7961 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7964 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7965 The given file adds to whatever has already been seeded into the
7966 random pool through the RANDFILE configuration file option or
7967 environment variable, or the default random state file.
7970 *) mkstack.pl now sorts each macro group into lexical order.
7971 Previously the output order depended on the order the files
7972 appeared in the directory, resulting in needless rewriting
7976 *) Patches to make OpenSSL compile under Win32 again. Mostly
7977 work arounds for the VC++ problem that it treats func() as
7978 func(void). Also stripped out the parts of mkdef.pl that
7979 added extra typesafe functions: these no longer exist.
7982 *) Reorganisation of the stack code. The macros are now all
7983 collected in safestack.h . Each macro is defined in terms of
7984 a "stack macro" of the form SKM_<name>(type, a, b). The
7985 DEBUG_SAFESTACK is now handled in terms of function casts,
7986 this has the advantage of retaining type safety without the
7987 use of additional functions. If DEBUG_SAFESTACK is not defined
7988 then the non typesafe macros are used instead. Also modified the
7989 mkstack.pl script to handle the new form. Needs testing to see
7990 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7991 the default if no major problems. Similar behaviour for ASN1_SET_OF
7992 and PKCS12_STACK_OF.
7995 *) When some versions of IIS use the 'NET' form of private key the
7996 key derivation algorithm is different. Normally MD5(password) is
7997 used as a 128 bit RC4 key. In the modified case
7998 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
7999 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8000 as the old Netscape_RSA functions except they have an additional
8001 'sgckey' parameter which uses the modified algorithm. Also added
8002 an -sgckey command line option to the rsa utility. Thanks to
8003 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8004 algorithm to openssl-dev.
8007 *) The evp_local.h macros were using 'c.##kname' which resulted in
8008 invalid expansion on some systems (SCO 5.0.5 for example).
8009 Corrected to 'c.kname'.
8010 [Phillip Porch <root@theporch.com>]
8012 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8013 a STACK of email addresses from a certificate or request, these look
8014 in the subject name and the subject alternative name extensions and
8015 omit any duplicate addresses.
8018 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8019 This makes DSA verification about 2 % faster.
8022 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8023 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8024 plus overhead for 1024 bit moduli).
8025 This makes exponentiations about 0.5 % faster for 1024 bit
8026 exponents (as measured by "openssl speed rsa2048").
8029 *) Rename memory handling macros to avoid conflicts with other
8031 Malloc => OPENSSL_malloc
8032 Malloc_locked => OPENSSL_malloc_locked
8033 Realloc => OPENSSL_realloc
8034 Free => OPENSSL_free
8037 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8038 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8041 *) CygWin32 support.
8042 [John Jarvie <jjarvie@newsguy.com>]
8044 *) The type-safe stack code has been rejigged. It is now only compiled
8045 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8046 by default all type-specific stack functions are "#define"d back to
8047 standard stack functions. This results in more streamlined output
8048 but retains the type-safety checking possibilities of the original
8052 *) The STACK code has been cleaned up, and certain type declarations
8053 that didn't make a lot of sense have been brought in line. This has
8054 also involved a cleanup of sorts in safestack.h to more correctly
8055 map type-safe stack functions onto their plain stack counterparts.
8056 This work has also resulted in a variety of "const"ifications of
8057 lots of the code, especially "_cmp" operations which should normally
8058 be prototyped with "const" parameters anyway.
8061 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8062 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8063 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8064 where all of 'md' is used each time the PRNG is used, but 'state'
8065 is used only indexed by a cyclic counter. As entropy may not be
8066 well distributed from the beginning, 'md' is important as a
8067 chaining variable. However, the output function chains only half
8068 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8069 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8070 in all of 'state' being rewritten, with the new values depending
8071 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8074 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8075 the handshake is continued after ssl_verify_cert_chain();
8076 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8077 can lead to 'unexplainable' connection aborts later.
8078 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8080 *) Major EVP API cipher revision.
8081 Add hooks for extra EVP features. This allows various cipher
8082 parameters to be set in the EVP interface. Support added for variable
8083 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8084 setting of RC2 and RC5 parameters.
8086 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8089 Remove lots of duplicated code from the EVP library. For example *every*
8090 cipher init() function handles the 'iv' in the same way according to the
8091 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8092 for CFB and OFB modes they zero ctx->num.
8094 New functionality allows removal of S/MIME code RC2 hack.
8096 Most of the routines have the same form and so can be declared in terms
8099 By shifting this to the top level EVP_CipherInit() it can be removed from
8100 all individual ciphers. If the cipher wants to handle IVs or keys
8101 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8104 Change lots of functions like EVP_EncryptUpdate() to now return a
8105 value: although software versions of the algorithms cannot fail
8106 any installed hardware versions can.
8109 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8110 this option is set, tolerate broken clients that send the negotiated
8111 protocol version number instead of the requested protocol version
8115 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8116 i.e. non-zero for export ciphersuites, zero otherwise.
8117 Previous versions had this flag inverted, inconsistent with
8118 rsa_tmp_cb (..._TMP_RSA_CB).
8119 [Bodo Moeller; problem reported by Amit Chopra]
8121 *) Add missing DSA library text string. Work around for some IIS
8122 key files with invalid SEQUENCE encoding.
8125 *) Add a document (doc/standards.txt) that list all kinds of standards
8126 and so on that are implemented in OpenSSL.
8129 *) Enhance c_rehash script. Old version would mishandle certificates
8130 with the same subject name hash and wouldn't handle CRLs at all.
8131 Added -fingerprint option to crl utility, to support new c_rehash
8135 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8138 *) Fix for SSL server purpose checking. Server checking was
8139 rejecting certificates which had extended key usage present
8140 but no ssl client purpose.
8141 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8143 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8144 is a little unclear about how a blank password is handled.
8145 Since the password in encoded as a BMPString with terminating
8146 double NULL a zero length password would end up as just the
8147 double NULL. However no password at all is different and is
8148 handled differently in the PKCS#12 key generation code. NS
8149 treats a blank password as zero length. MSIE treats it as no
8150 password on export: but it will try both on import. We now do
8151 the same: PKCS12_parse() tries zero length and no password if
8152 the password is set to "" or NULL (NULL is now a valid password:
8153 it wasn't before) as does the pkcs12 application.
8156 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8157 perror when PEM_read_bio_X509_REQ fails, the error message must
8158 be obtained from the error queue.
8161 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8162 it in ERR_remove_state if appropriate, and change ERR_get_state
8163 accordingly to avoid race conditions (this is necessary because
8164 thread_hash is no longer constant once set).
8167 *) Bugfix for linux-elf makefile.one.
8170 *) RSA_get_default_method() will now cause a default
8171 RSA_METHOD to be chosen if one doesn't exist already.
8172 Previously this was only set during a call to RSA_new()
8173 or RSA_new_method(NULL) meaning it was possible for
8174 RSA_get_default_method() to return NULL.
8177 *) Added native name translation to the existing DSO code
8178 that will convert (if the flag to do so is set) filenames
8179 that are sufficiently small and have no path information
8180 into a canonical native form. Eg. "blah" converted to
8181 "libblah.so" or "blah.dll" etc.
8184 *) New function ERR_error_string_n(e, buf, len) which is like
8185 ERR_error_string(e, buf), but writes at most 'len' bytes
8186 including the 0 terminator. For ERR_error_string_n, 'buf'
8188 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8190 *) CONF library reworked to become more general. A new CONF
8191 configuration file reader "class" is implemented as well as a
8192 new functions (NCONF_*, for "New CONF") to handle it. The now
8193 old CONF_* functions are still there, but are reimplemented to
8194 work in terms of the new functions. Also, a set of functions
8195 to handle the internal storage of the configuration data is
8196 provided to make it easier to write new configuration file
8197 reader "classes" (I can definitely see something reading a
8198 configuration file in XML format, for example), called _CONF_*,
8199 or "the configuration storage API"...
8201 The new configuration file reading functions are:
8203 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8204 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8206 NCONF_default, NCONF_WIN32
8208 NCONF_dump_fp, NCONF_dump_bio
8210 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8211 NCONF_new creates a new CONF object. This works in the same way
8212 as other interfaces in OpenSSL, like the BIO interface.
8213 NCONF_dump_* dump the internal storage of the configuration file,
8214 which is useful for debugging. All other functions take the same
8215 arguments as the old CONF_* functions wth the exception of the
8216 first that must be a `CONF *' instead of a `LHASH *'.
8218 To make it easer to use the new classes with the old CONF_* functions,
8219 the function CONF_set_default_method is provided.
8222 *) Add '-tls1' option to 'openssl ciphers', which was already
8223 mentioned in the documentation but had not been implemented.
8224 (This option is not yet really useful because even the additional
8225 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8228 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8229 OpenSSL-based applications) load shared libraries and bind to
8230 them in a portable way.
8231 [Geoff Thorpe, with contributions from Richard Levitte]
8233 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8235 *) Make sure _lrotl and _lrotr are only used with MSVC.
8237 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8238 (the default implementation of RAND_status).
8240 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8241 to '-clrext' (= clear extensions), as intended and documented.
8242 [Bodo Moeller; inconsistency pointed out by Michael Attili
8245 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8246 was larger than the MD block size.
8247 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8249 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8250 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8251 using the passed key: if the passed key was a private key the result
8252 of X509_print(), for example, would be to print out all the private key
8256 *) des_quad_cksum() byte order bug fix.
8257 [Ulf Möller, using the problem description in krb4-0.9.7, where
8258 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8260 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8262 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8264 *) For easily testing in shell scripts whether some command
8265 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8266 returns with exit code 0 iff no command of the given name is available.
8267 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8268 the output goes to stdout and nothing is printed to stderr.
8269 Additional arguments are always ignored.
8271 Since for each cipher there is a command of the same name,
8272 the 'no-cipher' compilation switches can be tested this way.
8274 ('openssl no-XXX' is not able to detect pseudo-commands such
8275 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8278 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8281 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8282 is set; it will be thrown away anyway because each handshake creates
8284 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8285 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8286 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8287 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8290 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8291 'Q' and 'R' lose their special meanings (quit/renegotiate).
8292 This is part of what -quiet does; unlike -quiet, -ign_eof
8293 does not suppress any output.
8296 *) Add compatibility options to the purpose and trust code. The
8297 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8298 accepts a certificate or CA, this was the previous behaviour,
8299 with all the associated security issues.
8301 X509_TRUST_COMPAT is the old trust behaviour: only and
8302 automatically trust self signed roots in certificate store. A
8303 new trust setting X509_TRUST_DEFAULT is used to specify that
8304 a purpose has no associated trust setting and it should instead
8305 use the value in the default purpose.
8308 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8309 and fix a memory leak.
8312 *) In util/mkerr.pl (which implements 'make errors'), preserve
8313 reason strings from the previous version of the .c file, as
8314 the default to have only downcase letters (and digits) in
8315 automatically generated reasons codes is not always appropriate.
8318 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8319 using strerror. Previously, ERR_reason_error_string() returned
8320 library names as reason strings for SYSerr; but SYSerr is a special
8321 case where small numbers are errno values, not library numbers.
8324 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8325 converts DSA parameters into DH parameters. (When creating parameters,
8326 DSA_generate_parameters is used.)
8329 *) Include 'length' (recommended exponent length) in C code generated
8330 by 'openssl dhparam -C'.
8333 *) The second argument to set_label in perlasm was already being used
8334 so couldn't be used as a "file scope" flag. Moved to third argument
8338 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8339 instead of RAND_bytes for encryption IVs and salts.
8342 *) Include RAND_status() into RAND_METHOD instead of implementing
8343 it only for md_rand.c Otherwise replacing the PRNG by calling
8344 RAND_set_rand_method would be impossible.
8347 *) Don't let DSA_generate_key() enter an infinite loop if the random
8348 number generation fails.
8351 *) New 'rand' application for creating pseudo-random output.
8354 *) Added configuration support for Linux/IA64
8355 [Rolf Haberrecker <rolf@suse.de>]
8357 *) Assembler module support for Mingw32.
8360 *) Shared library support for HPUX (in shlib/).
8361 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8363 *) Shared library support for Solaris gcc.
8364 [Lutz Behnke <behnke@trustcenter.de>]
8366 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8368 *) PKCS7_encrypt() was adding text MIME headers twice because they
8369 were added manually and by SMIME_crlf_copy().
8372 *) In bntest.c don't call BN_rand with zero bits argument.
8373 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8375 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8376 case was implemented. This caused BN_div_recp() to fail occasionally.
8379 *) Add an optional second argument to the set_label() in the perl
8380 assembly language builder. If this argument exists and is set
8381 to 1 it signals that the assembler should use a symbol whose
8382 scope is the entire file, not just the current function. This
8383 is needed with MASM which uses the format label:: for this scope.
8384 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8386 *) Change the ASN1 types so they are typedefs by default. Before
8387 almost all types were #define'd to ASN1_STRING which was causing
8388 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8392 *) Change names of new functions to the new get1/get0 naming
8393 convention: After 'get1', the caller owns a reference count
8394 and has to call ..._free; 'get0' returns a pointer to some
8395 data structure without incrementing reference counters.
8396 (Some of the existing 'get' functions increment a reference
8397 counter, some don't.)
8398 Similarly, 'set1' and 'add1' functions increase reference
8399 counters or duplicate objects.
8402 *) Allow for the possibility of temp RSA key generation failure:
8403 the code used to assume it always worked and crashed on failure.
8406 *) Fix potential buffer overrun problem in BIO_printf().
8407 [Ulf Möller, using public domain code by Patrick Powell; problem
8408 pointed out by David Sacerdote <das33@cornell.edu>]
8410 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8411 RAND_egd() and RAND_status(). In the command line application,
8412 the EGD socket can be specified like a seed file using RANDFILE
8416 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8417 Some CAs (e.g. Verisign) distribute certificates in this form.
8420 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8421 list to exclude them. This means that no special compilation option
8422 is needed to use anonymous DH: it just needs to be included in the
8426 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8427 EVP_MD_type. The old functionality is available in a new macro called
8428 EVP_MD_md(). Change code that uses it and update docs.
8431 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8432 where the 'void *' argument is replaced by a function pointer argument.
8433 Previously 'void *' was abused to point to functions, which works on
8434 many platforms, but is not correct. As these functions are usually
8435 called by macros defined in OpenSSL header files, most source code
8436 should work without changes.
8439 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8440 sections with information on -D... compiler switches used for
8441 compiling the library so that applications can see them. To enable
8442 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8443 must be defined. E.g.,
8444 #define OPENSSL_ALGORITHM_DEFINES
8445 #include <openssl/opensslconf.h>
8446 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8447 [Richard Levitte, Ulf and Bodo Möller]
8449 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8453 *) Change the 'other' type in certificate aux info to a STACK_OF
8454 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8455 the required ASN1 format: arbitrary types determined by an OID.
8458 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8459 argument to 'req'. This is not because the function is newer or
8460 better than others it just uses the work 'NEW' in the certificate
8461 request header lines. Some software needs this.
8464 *) Reorganise password command line arguments: now passwords can be
8465 obtained from various sources. Delete the PEM_cb function and make
8466 it the default behaviour: i.e. if the callback is NULL and the
8467 usrdata argument is not NULL interpret it as a null terminated pass
8468 phrase. If usrdata and the callback are NULL then the pass phrase
8469 is prompted for as usual.
8472 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8473 the support is automatically enabled. The resulting binaries will
8474 autodetect the card and use it if present.
8475 [Ben Laurie and Compaq Inc.]
8477 *) Work around for Netscape hang bug. This sends certificate request
8478 and server done in one record. Since this is perfectly legal in the
8479 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8480 the bugs/SSLv3 entry for more info.
8483 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8486 *) Add -rand argument to smime and pkcs12 applications and read/write
8490 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8493 *) Add command line password options to the remaining applications.
8496 *) Bug fix for BN_div_recp() for numerators with an even number of
8500 *) More tests in bntest.c, and changed test_bn output.
8503 *) ./config recognizes MacOS X now.
8506 *) Bug fix for BN_div() when the first words of num and divsor are
8507 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8510 *) Add support for various broken PKCS#8 formats, and command line
8511 options to produce them.
8514 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8515 get temporary BIGNUMs from a BN_CTX.
8518 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8522 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8523 include a #define from the old name to the new. The original intent
8524 was that statically linked binaries could for example just call
8525 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8526 link with digests. This never worked because SSLeay_add_all_digests()
8527 and SSLeay_add_all_ciphers() were in the same source file so calling
8528 one would link with the other. They are now in separate source files.
8531 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8534 *) Use a less unusual form of the Miller-Rabin primality test (it used
8535 a binary algorithm for exponentiation integrated into the Miller-Rabin
8536 loop, our standard modexp algorithms are faster).
8539 *) Support for the EBCDIC character set completed.
8540 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8542 *) Source code cleanups: use const where appropriate, eliminate casts,
8543 use void * instead of char * in lhash.
8546 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8547 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8548 this the server could overwrite ephemeral keys that the client
8552 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8553 using 50 iterations of the Rabin-Miller test.
8555 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8556 iterations of the Rabin-Miller test as required by the appendix
8557 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8558 As BN_is_prime_fasttest includes trial division, DSA parameter
8559 generation becomes much faster.
8561 This implies a change for the callback functions in DSA_is_prime
8562 and DSA_generate_parameters: The callback function is called once
8563 for each positive witness in the Rabin-Miller test, not just
8564 occasionally in the inner loop; and the parameters to the
8565 callback function now provide an iteration count for the outer
8566 loop rather than for the current invocation of the inner loop.
8567 DSA_generate_parameters additionally can call the callback
8568 function with an 'iteration count' of -1, meaning that a
8569 candidate has passed the trial division test (when q is generated
8570 from an application-provided seed, trial division is skipped).
8573 *) New function BN_is_prime_fasttest that optionally does trial
8574 division before starting the Rabin-Miller test and has
8575 an additional BN_CTX * argument (whereas BN_is_prime always
8576 has to allocate at least one BN_CTX).
8577 'callback(1, -1, cb_arg)' is called when a number has passed the
8578 trial division stage.
8581 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8585 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8588 *) New function BN_pseudo_rand().
8591 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8592 bignum version of BN_from_montgomery() with the working code from
8593 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8597 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8598 made it impossible to use the same SSL_SESSION data structure in
8599 SSL2 clients in multiple threads.
8602 *) The return value of RAND_load_file() no longer counts bytes obtained
8603 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8604 to seed the PRNG (previously an explicit byte count was required).
8605 [Ulf Möller, Bodo Möller]
8607 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8608 used (char *) instead of (void *) and had casts all over the place.
8611 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8614 *) Retain source code compatibility for BN_prime_checks macro:
8615 BN_is_prime(..., BN_prime_checks, ...) now uses
8616 BN_prime_checks_for_size to determine the appropriate number of
8617 Rabin-Miller iterations.
8620 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8621 DH_CHECK_P_NOT_SAFE_PRIME.
8622 (Check if this is true? OpenPGP calls them "strong".)
8625 *) Merge the functionality of "dh" and "gendh" programs into a new program
8626 "dhparam". The old programs are retained for now but will handle DH keys
8627 (instead of parameters) in future.
8630 *) Make the ciphers, s_server and s_client programs check the return values
8631 when a new cipher list is set.
8634 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8635 ciphers. Before when the 56bit ciphers were enabled the sorting was
8638 The syntax for the cipher sorting has been extended to support sorting by
8639 cipher-strength (using the strength_bits hard coded in the tables).
8640 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8642 Fix a bug in the cipher-command parser: when supplying a cipher command
8643 string with an "undefined" symbol (neither command nor alphanumeric
8644 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8645 an error is flagged.
8647 Due to the strength-sorting extension, the code of the
8648 ssl_create_cipher_list() function was completely rearranged. I hope that
8649 the readability was also increased :-)
8650 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8652 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8653 for the first serial number and places 2 in the serial number file. This
8654 avoids problems when the root CA is created with serial number zero and
8655 the first user certificate has the same issuer name and serial number
8659 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8660 the new code. Add documentation for this stuff.
8663 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8664 X509_*() to X509at_*() on the grounds that they don't handle X509
8665 structures and behave in an analogous way to the X509v3 functions:
8666 they shouldn't be called directly but wrapper functions should be used
8669 So we also now have some wrapper functions that call the X509at functions
8670 when passed certificate requests. (TO DO: similar things can be done with
8671 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8672 things. Some of these need some d2i or i2d and print functionality
8673 because they handle more complex structures.)
8676 *) Add missing #ifndefs that caused missing symbols when building libssl
8677 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8678 NO_RSA in ssl/s2*.c.
8679 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8681 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8682 has a return value which indicates the quality of the random data
8683 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8684 error queue. New function RAND_pseudo_bytes() generates output that is
8685 guaranteed to be unique but not unpredictable. RAND_add is like
8686 RAND_seed, but takes an extra argument for an entropy estimate
8687 (RAND_seed always assumes full entropy).
8690 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8691 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8692 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8693 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8694 false-positive rate of at most 2^-80 for random input.
8697 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8700 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8701 in the 0.9.5 release), this returns the chain
8702 from an X509_CTX structure with a dup of the stack and all
8703 the X509 reference counts upped: so the stack will exist
8704 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8707 Also make SSL_SESSION_print() print out the verify return
8711 *) Add manpage for the pkcs12 command. Also change the default
8712 behaviour so MAC iteration counts are used unless the new
8713 -nomaciter option is used. This improves file security and
8714 only older versions of MSIE (4.0 for example) need it.
8717 *) Honor the no-xxx Configure options when creating .DEF files.
8720 *) Add PKCS#10 attributes to field table: challengePassword,
8721 unstructuredName and unstructuredAddress. These are taken from
8722 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8723 international characters are used.
8725 More changes to X509_ATTRIBUTE code: allow the setting of types
8726 based on strings. Remove the 'loc' parameter when adding
8727 attributes because these will be a SET OF encoding which is sorted
8731 *) Initial changes to the 'req' utility to allow request generation
8732 automation. This will allow an application to just generate a template
8733 file containing all the field values and have req construct the
8736 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8737 used all over the place including certificate requests and PKCS#7
8738 structures. They are currently handled manually where necessary with
8739 some primitive wrappers for PKCS#7. The new functions behave in a
8740 manner analogous to the X509 extension functions: they allow
8741 attributes to be looked up by NID and added.
8743 Later something similar to the X509V3 code would be desirable to
8744 automatically handle the encoding, decoding and printing of the
8745 more complex types. The string types like challengePassword can
8746 be handled by the string table functions.
8748 Also modified the multi byte string table handling. Now there is
8749 a 'global mask' which masks out certain types. The table itself
8750 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8751 is useful when for example there is only one permissible type
8752 (as in countryName) and using the mask might result in no valid
8756 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8757 SSL_get_peer_finished to allow applications to obtain the latest
8758 Finished messages sent to the peer or expected from the peer,
8759 respectively. (SSL_get_peer_finished is usually the Finished message
8760 actually received from the peer, otherwise the protocol will be aborted.)
8762 As the Finished message are message digests of the complete handshake
8763 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8764 be used for external authentication procedures when the authentication
8765 provided by SSL/TLS is not desired or is not enough.
8768 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8769 the host supports BWX extension and if Compaq C is present on the
8770 $PATH. Just exploiting of the BWX extension results in 20-30%
8771 performance kick for some algorithms, e.g. DES and RC4 to mention
8772 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8776 *) Add support for MS "fast SGC". This is arguably a violation of the
8777 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8778 weak crypto and after checking the certificate is SGC a second one
8779 with strong crypto. MS SGC stops the first handshake after receiving
8780 the server certificate message and sends a second client hello. Since
8781 a server will typically do all the time consuming operations before
8782 expecting any further messages from the client (server key exchange
8783 is the most expensive) there is little difference between the two.
8785 To get OpenSSL to support MS SGC we have to permit a second client
8786 hello message after we have sent server done. In addition we have to
8787 reset the MAC if we do get this second client hello.
8790 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8791 if a DER encoded private key is RSA or DSA traditional format. Changed
8792 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8793 format DER encoded private key. Newer code should use PKCS#8 format which
8794 has the key type encoded in the ASN1 structure. Added DER private key
8795 support to pkcs8 application.
8798 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8799 ciphersuites has been selected (as required by the SSL 3/TLS 1
8800 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8801 is set, we interpret this as a request to violate the specification
8802 (the worst that can happen is a handshake failure, and 'correct'
8803 behaviour would result in a handshake failure anyway).
8806 *) In SSL_CTX_add_session, take into account that there might be multiple
8807 SSL_SESSION structures with the same session ID (e.g. when two threads
8808 concurrently obtain them from an external cache).
8809 The internal cache can handle only one SSL_SESSION with a given ID,
8810 so if there's a conflict, we now throw out the old one to achieve
8814 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8815 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8816 some routines that use cipher OIDs: some ciphers do not have OIDs
8817 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8821 *) Simplify the trust setting structure and code. Now we just have
8822 two sequences of OIDs for trusted and rejected settings. These will
8823 typically have values the same as the extended key usage extension
8824 and any application specific purposes.
8826 The trust checking code now has a default behaviour: it will just
8827 check for an object with the same NID as the passed id. Functions can
8828 be provided to override either the default behaviour or the behaviour
8829 for a given id. SSL client, server and email already have functions
8830 in place for compatibility: they check the NID and also return "trusted"
8831 if the certificate is self signed.
8834 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8835 traditional format into an EVP_PKEY structure.
8838 *) Add a password callback function PEM_cb() which either prompts for
8839 a password if usr_data is NULL or otherwise assumes it is a null
8840 terminated password. Allow passwords to be passed on command line
8841 environment or config files in a few more utilities.
8844 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8845 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8846 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8847 Update documentation.
8850 *) Support for ASN1 "NULL" type. This could be handled before by using
8851 ASN1_TYPE but there wasn't any function that would try to read a NULL
8852 and produce an error if it couldn't. For compatibility we also have
8853 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8854 don't allocate anything because they don't need to.
8857 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8859 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8861 *) Rebuild of the memory allocation routines used by OpenSSL code and
8862 possibly others as well. The purpose is to make an interface that
8863 provide hooks so anyone can build a separate set of allocation and
8864 deallocation routines to be used by OpenSSL, for example memory
8865 pool implementations, or something else, which was previously hard
8866 since Malloc(), Realloc() and Free() were defined as macros having
8867 the values malloc, realloc and free, respectively (except for Win32
8868 compilations). The same is provided for memory debugging code.
8869 OpenSSL already comes with functionality to find memory leaks, but
8870 this gives people a chance to debug other memory problems.
8872 With these changes, a new set of functions and macros have appeared:
8874 CRYPTO_set_mem_debug_functions() [F]
8875 CRYPTO_get_mem_debug_functions() [F]
8876 CRYPTO_dbg_set_options() [F]
8877 CRYPTO_dbg_get_options() [F]
8878 CRYPTO_malloc_debug_init() [M]
8880 The memory debug functions are NULL by default, unless the library
8881 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8882 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8883 gives the standard debugging functions that come with OpenSSL) or
8884 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8885 provided by the library user) must be used. When the standard
8886 debugging functions are used, CRYPTO_dbg_set_options can be used to
8887 request additional information:
8888 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8889 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8891 Also, things like CRYPTO_set_mem_functions will always give the
8892 expected result (the new set of functions is used for allocation
8893 and deallocation) at all times, regardless of platform and compiler
8896 To finish it up, some functions that were never use in any other
8897 way than through macros have a new API and new semantic:
8900 CRYPTO_dbg_realloc()
8903 All macros of value have retained their old syntax.
8904 [Richard Levitte and Bodo Moeller]
8906 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8907 ordering of SMIMECapabilities wasn't in "strength order" and there
8908 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8912 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8913 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8914 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8916 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8917 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8918 functionality to handle multipart/signed properly) and a utility
8919 called 'smime' to call all this stuff. This is based on code I
8920 originally wrote for Celo who have kindly allowed it to be
8921 included in OpenSSL.
8924 *) Add variants des_set_key_checked and des_set_key_unchecked of
8925 des_set_key (aka des_key_sched). Global variable des_check_key
8926 decides which of these is called by des_set_key; this way
8927 des_check_key behaves as it always did, but applications and
8928 the library itself, which was buggy for des_check_key == 1,
8929 have a cleaner way to pick the version they need.
8932 *) New function PKCS12_newpass() which changes the password of a
8936 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8937 dynamic mix. In both cases the ids can be used as an index into the
8938 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8939 functions so they accept a list of the field values and the
8940 application doesn't need to directly manipulate the X509_TRUST
8944 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8948 *) Modify the way the V3 extension code looks up extensions. This now
8949 works in a similar way to the object code: we have some "standard"
8950 extensions in a static table which is searched with OBJ_bsearch()
8951 and the application can add dynamic ones if needed. The file
8952 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8953 updated whenever a new extension is added to the core code and kept
8954 in ext_nid order. There is a simple program 'tabtest.c' which checks
8955 this. New extensions are not added too often so this file can readily
8956 be maintained manually.
8958 There are two big advantages in doing things this way. The extensions
8959 can be looked up immediately and no longer need to be "added" using
8960 X509V3_add_standard_extensions(): this function now does nothing.
8961 [Side note: I get *lots* of email saying the extension code doesn't
8962 work because people forget to call this function]
8963 Also no dynamic allocation is done unless new extensions are added:
8964 so if we don't add custom extensions there is no need to call
8965 X509V3_EXT_cleanup().
8968 *) Modify enc utility's salting as follows: make salting the default. Add a
8969 magic header, so unsalted files fail gracefully instead of just decrypting
8970 to garbage. This is because not salting is a big security hole, so people
8971 should be discouraged from doing it.
8974 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8975 digest to be passed on the command line but it only used this
8976 parameter when signing a certificate. Modified so all relevant
8977 operations are affected by the digest parameter including the
8978 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8979 DSA key was used because it didn't fix the digest.
8982 *) Initial certificate chain verify code. Currently tests the untrusted
8983 certificates for consistency with the verify purpose (which is set
8984 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8986 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8987 this is because it will reject chains with invalid extensions whereas
8988 every previous version of OpenSSL and SSLeay made no checks at all.
8990 Trust code: checks the root CA for the relevant trust settings. Trust
8991 settings have an initial value consistent with the verify purpose: e.g.
8992 if the verify purpose is for SSL client use it expects the CA to be
8993 trusted for SSL client use. However the default value can be changed to
8994 permit custom trust settings: one example of this would be to only trust
8995 certificates from a specific "secure" set of CAs.
8997 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8998 which should be used for version portability: especially since the
8999 verify structure is likely to change more often now.
9001 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9002 to set them. If not set then assume SSL clients will verify SSL servers
9005 Two new options to the verify program: -untrusted allows a set of
9006 untrusted certificates to be passed in and -purpose which sets the
9007 intended purpose of the certificate. If a purpose is set then the
9008 new chain verify code is used to check extension consistency.
9011 *) Support for the authority information access extension.
9014 *) Modify RSA and DSA PEM read routines to transparently handle
9015 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9016 public keys in a format compatible with certificate
9017 SubjectPublicKeyInfo structures. Unfortunately there were already
9018 functions called *_PublicKey_* which used various odd formats so
9019 these are retained for compatibility: however the DSA variants were
9020 never in a public release so they have been deleted. Changed dsa/rsa
9021 utilities to handle the new format: note no releases ever handled public
9022 keys so we should be OK.
9024 The primary motivation for this change is to avoid the same fiasco
9025 that dogs private keys: there are several incompatible private key
9026 formats some of which are standard and some OpenSSL specific and
9027 require various evil hacks to allow partial transparent handling and
9028 even then it doesn't work with DER formats. Given the option anything
9029 other than PKCS#8 should be dumped: but the other formats have to
9030 stay in the name of compatibility.
9032 With public keys and the benefit of hindsight one standard format
9033 is used which works with EVP_PKEY, RSA or DSA structures: though
9034 it clearly returns an error if you try to read the wrong kind of key.
9036 Added a -pubkey option to the 'x509' utility to output the public key.
9037 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9038 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9039 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9040 that do the same as the EVP_PKEY_assign_*() except they up the
9041 reference count of the added key (they don't "swallow" the
9045 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9046 CRLs would fail if the file contained no certificates or no CRLs:
9047 added a new function to read in both types and return the number
9048 read: this means that if none are read it will be an error. The
9049 DER versions of the certificate and CRL reader would always fail
9050 because it isn't possible to mix certificates and CRLs in DER format
9051 without choking one or the other routine. Changed this to just read
9052 a certificate: this is the best we can do. Also modified the code
9053 in apps/verify.c to take notice of return codes: it was previously
9054 attempting to read in certificates from NULL pointers and ignoring
9055 any errors: this is one reason why the cert and CRL reader seemed
9056 to work. It doesn't check return codes from the default certificate
9057 routines: these may well fail if the certificates aren't installed.
9060 *) Code to support otherName option in GeneralName.
9063 *) First update to verify code. Change the verify utility
9064 so it warns if it is passed a self signed certificate:
9065 for consistency with the normal behaviour. X509_verify
9066 has been modified to it will now verify a self signed
9067 certificate if *exactly* the same certificate appears
9068 in the store: it was previously impossible to trust a
9069 single self signed certificate. This means that:
9070 openssl verify ss.pem
9071 now gives a warning about a self signed certificate but
9072 openssl verify -CAfile ss.pem ss.pem
9076 *) For servers, store verify_result in SSL_SESSION data structure
9077 (and add it to external session representation).
9078 This is needed when client certificate verifications fails,
9079 but an application-provided verification callback (set by
9080 SSL_CTX_set_cert_verify_callback) allows accepting the session
9081 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9082 but returns 1): When the session is reused, we have to set
9083 ssl->verify_result to the appropriate error code to avoid
9085 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9087 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9088 case in PKCS7_dataInit() where the signed PKCS7 structure
9089 didn't contain any existing data because it was being created.
9090 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9092 *) Add a salt to the key derivation routines in enc.c. This
9093 forms the first 8 bytes of the encrypted file. Also add a
9094 -S option to allow a salt to be input on the command line.
9097 *) New function X509_cmp(). Oddly enough there wasn't a function
9098 to compare two certificates. We do this by working out the SHA1
9099 hash and comparing that. X509_cmp() will be needed by the trust
9103 *) SSL_get1_session() is like SSL_get_session(), but increments
9104 the reference count in the SSL_SESSION returned.
9105 [Geoff Thorpe <geoff@eu.c2.net>]
9107 *) Fix for 'req': it was adding a null to request attributes.
9108 Also change the X509_LOOKUP and X509_INFO code to handle
9109 certificate auxiliary information.
9112 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9116 *) Add the possibility to add extra information to the memory leak
9117 detecting output, to form tracebacks, showing from where each
9118 allocation was originated: CRYPTO_push_info("constant string") adds
9119 the string plus current file name and line number to a per-thread
9120 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9121 is like calling CYRPTO_pop_info() until the stack is empty.
9122 Also updated memory leak detection code to be multi-thread-safe.
9125 *) Add options -text and -noout to pkcs7 utility and delete the
9126 encryption options which never did anything. Update docs.
9129 *) Add options to some of the utilities to allow the pass phrase
9130 to be included on either the command line (not recommended on
9131 OSes like Unix) or read from the environment. Update the
9132 manpages and fix a few bugs.
9135 *) Add a few manpages for some of the openssl commands.
9138 *) Fix the -revoke option in ca. It was freeing up memory twice,
9139 leaking and not finding already revoked certificates.
9142 *) Extensive changes to support certificate auxiliary information.
9143 This involves the use of X509_CERT_AUX structure and X509_AUX
9144 functions. An X509_AUX function such as PEM_read_X509_AUX()
9145 can still read in a certificate file in the usual way but it
9146 will also read in any additional "auxiliary information". By
9147 doing things this way a fair degree of compatibility can be
9148 retained: existing certificates can have this information added
9149 using the new 'x509' options.
9151 Current auxiliary information includes an "alias" and some trust
9152 settings. The trust settings will ultimately be used in enhanced
9153 certificate chain verification routines: currently a certificate
9154 can only be trusted if it is self signed and then it is trusted
9158 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9159 The problem was that one of the replacement routines had not been working
9160 since SSLeay releases. For now the offending routine has been replaced
9161 with non-optimised assembler. Even so, this now gives around 95%
9162 performance improvement for 1024 bit RSA signs.
9165 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9166 handling. Most clients have the effective key size in bits equal to
9167 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9168 A few however don't do this and instead use the size of the decrypted key
9169 to determine the RC2 key length and the AlgorithmIdentifier to determine
9170 the effective key length. In this case the effective key length can still
9171 be 40 bits but the key length can be 168 bits for example. This is fixed
9172 by manually forcing an RC2 key into the EVP_PKEY structure because the
9173 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9174 the key length and effective key length are equal.
9177 *) Add a bunch of functions that should simplify the creation of
9178 X509_NAME structures. Now you should be able to do:
9179 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9180 and have it automatically work out the correct field type and fill in
9181 the structures. The more adventurous can try:
9182 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9183 and it will (hopefully) work out the correct multibyte encoding.
9186 *) Change the 'req' utility to use the new field handling and multibyte
9187 copy routines. Before the DN field creation was handled in an ad hoc
9188 way in req, ca, and x509 which was rather broken and didn't support
9189 BMPStrings or UTF8Strings. Since some software doesn't implement
9190 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9191 using the dirstring_type option. See the new comment in the default
9192 openssl.cnf for more info.
9195 *) Make crypto/rand/md_rand.c more robust:
9196 - Assure unique random numbers after fork().
9197 - Make sure that concurrent threads access the global counter and
9198 md serializably so that we never lose entropy in them
9199 or use exactly the same state in multiple threads.
9200 Access to the large state is not always serializable because
9201 the additional locking could be a performance killer, and
9202 md should be large enough anyway.
9205 *) New file apps/app_rand.c with commonly needed functionality
9206 for handling the random seed file.
9208 Use the random seed file in some applications that previously did not:
9210 dsaparam -genkey (which also ignored its '-rand' option),
9213 x509 (when signing).
9214 Except on systems with /dev/urandom, it is crucial to have a random
9215 seed file at least for key creation, DSA signing, and for DH exchanges;
9216 for RSA signatures we could do without one.
9218 gendh and gendsa (unlike genrsa) used to read only the first byte
9219 of each file listed in the '-rand' option. The function as previously
9220 found in genrsa is now in app_rand.c and is used by all programs
9221 that support '-rand'.
9224 *) In RAND_write_file, use mode 0600 for creating files;
9225 don't just chmod when it may be too late.
9228 *) Report an error from X509_STORE_load_locations
9229 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9232 *) New function ASN1_mbstring_copy() this copies a string in either
9233 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9234 into an ASN1_STRING type. A mask of permissible types is passed
9235 and it chooses the "minimal" type to use or an error if not type
9239 *) Add function equivalents to the various macros in asn1.h. The old
9240 macros are retained with an M_ prefix. Code inside the library can
9241 use the M_ macros. External code (including the openssl utility)
9242 should *NOT* in order to be "shared library friendly".
9245 *) Add various functions that can check a certificate's extensions
9246 to see if it usable for various purposes such as SSL client,
9247 server or S/MIME and CAs of these types. This is currently
9248 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9249 verification. Also added a -purpose flag to x509 utility to
9250 print out all the purposes.
9253 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9257 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9258 for, obtain and decode and extension and obtain its critical flag.
9259 This allows all the necessary extension code to be handled in a
9260 single function call.
9263 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9264 platforms. See crypto/rc4/rc4_enc.c for further details.
9267 *) New -noout option to asn1parse. This causes no output to be produced
9268 its main use is when combined with -strparse and -out to extract data
9269 from a file (which may not be in ASN.1 format).
9272 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9273 when producing the local key id.
9274 [Richard Levitte <levitte@stacken.kth.se>]
9276 *) New option -dhparam in s_server. This allows a DH parameter file to be
9277 stated explicitly. If it is not stated then it tries the first server
9278 certificate file. The previous behaviour hard coded the filename
9282 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9283 a public key to be input or output. For example:
9284 openssl rsa -in key.pem -pubout -out pubkey.pem
9285 Also added necessary DSA public key functions to handle this.
9288 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9289 in the message. This was handled by allowing
9290 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9291 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9293 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9294 to the end of the strings whereas this didn't. This would cause problems
9295 if strings read with d2i_ASN1_bytes() were later modified.
9296 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9298 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9299 data and it contains EOF it will end up returning an error. This is
9300 caused by input 46 bytes long. The cause is due to the way base64
9301 BIOs find the start of base64 encoded data. They do this by trying a
9302 trial decode on each line until they find one that works. When they
9303 do a flag is set and it starts again knowing it can pass all the
9304 data directly through the decoder. Unfortunately it doesn't reset
9305 the context it uses. This means that if EOF is reached an attempt
9306 is made to pass two EOFs through the context and this causes the
9307 resulting error. This can also cause other problems as well. As is
9308 usual with these problems it takes *ages* to find and the fix is
9309 trivial: move one line.
9310 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9312 *) Ugly workaround to get s_client and s_server working under Windows. The
9313 old code wouldn't work because it needed to select() on sockets and the
9314 tty (for keypresses and to see if data could be written). Win32 only
9315 supports select() on sockets so we select() with a 1s timeout on the
9316 sockets and then see if any characters are waiting to be read, if none
9317 are present then we retry, we also assume we can always write data to
9318 the tty. This isn't nice because the code then blocks until we've
9319 received a complete line of data and it is effectively polling the
9320 keyboard at 1s intervals: however it's quite a bit better than not
9321 working at all :-) A dedicated Windows application might handle this
9322 with an event loop for example.
9325 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9326 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9327 will be called when RSA_sign() and RSA_verify() are used. This is useful
9328 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9329 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9330 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9331 This necessitated the support of an extra signature type NID_md5_sha1
9332 for SSL signatures and modifications to the SSL library to use it instead
9333 of calling RSA_public_decrypt() and RSA_private_encrypt().
9336 *) Add new -verify -CAfile and -CApath options to the crl program, these
9337 will lookup a CRL issuers certificate and verify the signature in a
9338 similar way to the verify program. Tidy up the crl program so it
9339 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9340 less strict. It will now permit CRL extensions even if it is not
9341 a V2 CRL: this will allow it to tolerate some broken CRLs.
9344 *) Initialize all non-automatic variables each time one of the openssl
9345 sub-programs is started (this is necessary as they may be started
9346 multiple times from the "OpenSSL>" prompt).
9347 [Lennart Bang, Bodo Moeller]
9349 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9350 removing all other RSA functionality (this is what NO_RSA does). This
9351 is so (for example) those in the US can disable those operations covered
9352 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9356 *) Non-copying interface to BIO pairs.
9357 (still largely untested)
9360 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9361 ASCII string. This was handled independently in various places before.
9364 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9365 UTF8 strings a character at a time.
9368 *) Use client_version from client hello to select the protocol
9369 (s23_srvr.c) and for RSA client key exchange verification
9370 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9373 *) Add various utility functions to handle SPKACs, these were previously
9374 handled by poking round in the structure internals. Added new function
9375 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9376 print, verify and generate SPKACs. Based on an original idea from
9377 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9380 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9383 *) Allow the config file extension section to be overwritten on the
9384 command line. Based on an original idea from Massimiliano Pala
9385 <madwolf@comune.modena.it>. The new option is called -extensions
9386 and can be applied to ca, req and x509. Also -reqexts to override
9387 the request extensions in req and -crlexts to override the crl extensions
9391 *) Add new feature to the SPKAC handling in ca. Now you can include
9392 the same field multiple times by preceding it by "XXXX." for example:
9395 this is the same syntax as used in the req config file.
9398 *) Allow certificate extensions to be added to certificate requests. These
9399 are specified in a 'req_extensions' option of the req section of the
9400 config file. They can be printed out with the -text option to req but
9401 are otherwise ignored at present.
9404 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9405 data read consists of only the final block it would not decrypted because
9406 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9407 A misplaced 'break' also meant the decrypted final block might not be
9408 copied until the next read.
9411 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9412 a few extra parameters to the DH structure: these will be useful if
9413 for example we want the value of 'q' or implement X9.42 DH.
9416 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9417 provides hooks that allow the default DSA functions or functions on a
9418 "per key" basis to be replaced. This allows hardware acceleration and
9419 hardware key storage to be handled without major modification to the
9420 library. Also added low level modexp hooks and CRYPTO_EX structure and
9421 associated functions.
9424 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9425 as "read only": it can't be written to and the buffer it points to will
9426 not be freed. Reading from a read only BIO is much more efficient than
9427 a normal memory BIO. This was added because there are several times when
9428 an area of memory needs to be read from a BIO. The previous method was
9429 to create a memory BIO and write the data to it, this results in two
9430 copies of the data and an O(n^2) reading algorithm. There is a new
9431 function BIO_new_mem_buf() which creates a read only memory BIO from
9432 an area of memory. Also modified the PKCS#7 routines to use read only
9436 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9437 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9438 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9439 but a retry condition occured while trying to read the rest.
9442 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9443 NID_pkcs7_encrypted by default: this was wrong since this should almost
9444 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9445 the encrypted data type: this is a more sensible place to put it and it
9446 allows the PKCS#12 code to be tidied up that duplicated this
9450 *) Changed obj_dat.pl script so it takes its input and output files on
9451 the command line. This should avoid shell escape redirection problems
9455 *) Initial support for certificate extension requests, these are included
9456 in things like Xenroll certificate requests. Included functions to allow
9457 extensions to be obtained and added.
9460 *) -crlf option to s_client and s_server for sending newlines as
9461 CRLF (as required by many protocols).
9464 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9466 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9467 [Ralf S. Engelschall]
9469 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9470 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9472 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9476 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9477 DH parameters/keys (q is lost during that conversion, but the resulting
9478 DH parameters contain its length).
9480 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9481 much faster than DH_generate_parameters (which creates parameters
9482 where p = 2*q + 1), and also the smaller q makes DH computations
9483 much more efficient (160-bit exponentiation instead of 1024-bit
9484 exponentiation); so this provides a convenient way to support DHE
9485 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9486 utter importance to use
9487 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9489 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9490 when such DH parameters are used, because otherwise small subgroup
9491 attacks may become possible!
9494 *) Avoid memory leak in i2d_DHparams.
9497 *) Allow the -k option to be used more than once in the enc program:
9498 this allows the same encrypted message to be read by multiple recipients.
9501 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9502 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9503 it will always use the numerical form of the OID, even if it has a short
9507 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9508 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9509 otherwise bn_mod_exp was called. In the case of hardware keys for example
9510 no private key components need be present and it might store extra data
9511 in the RSA structure, which cannot be accessed from bn_mod_exp.
9512 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9513 private key operations.
9516 *) Added support for SPARC Linux.
9519 *) pem_password_cb function type incompatibly changed from
9520 typedef int pem_password_cb(char *buf, int size, int rwflag);
9522 ....(char *buf, int size, int rwflag, void *userdata);
9523 so that applications can pass data to their callbacks:
9524 The PEM[_ASN1]_{read,write}... functions and macros now take an
9525 additional void * argument, which is just handed through whenever
9526 the password callback is called.
9527 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9529 New function SSL_CTX_set_default_passwd_cb_userdata.
9531 Compatibility note: As many C implementations push function arguments
9532 onto the stack in reverse order, the new library version is likely to
9533 interoperate with programs that have been compiled with the old
9534 pem_password_cb definition (PEM_whatever takes some data that
9535 happens to be on the stack as its last argument, and the callback
9536 just ignores this garbage); but there is no guarantee whatsoever that
9539 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9540 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9541 problems not only on Windows, but also on some Unix platforms.
9542 To avoid problematic command lines, these definitions are now in an
9543 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9544 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9547 *) MIPS III/IV assembler module is reimplemented.
9550 *) More DES library cleanups: remove references to srand/rand and
9551 delete an unused file.
9554 *) Add support for the the free Netwide assembler (NASM) under Win32,
9555 since not many people have MASM (ml) and it can be hard to obtain.
9556 This is currently experimental but it seems to work OK and pass all
9557 the tests. Check out INSTALL.W32 for info.
9560 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9561 without temporary keys kept an extra copy of the server key,
9562 and connections with temporary keys did not free everything in case
9566 *) New function RSA_check_key and new openssl rsa option -check
9567 for verifying the consistency of RSA keys.
9568 [Ulf Moeller, Bodo Moeller]
9570 *) Various changes to make Win32 compile work:
9571 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9572 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9573 comparison" warnings.
9574 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9577 *) Add a debugging option to PKCS#5 v2 key generation function: when
9578 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9579 derived keys are printed to stderr.
9582 *) Copy the flags in ASN1_STRING_dup().
9583 [Roman E. Pavlov <pre@mo.msk.ru>]
9585 *) The x509 application mishandled signing requests containing DSA
9586 keys when the signing key was also DSA and the parameters didn't match.
9588 It was supposed to omit the parameters when they matched the signing key:
9589 the verifying software was then supposed to automatically use the CA's
9590 parameters if they were absent from the end user certificate.
9592 Omitting parameters is no longer recommended. The test was also
9593 the wrong way round! This was probably due to unusual behaviour in
9594 EVP_cmp_parameters() which returns 1 if the parameters match.
9595 This meant that parameters were omitted when they *didn't* match and
9596 the certificate was useless. Certificates signed with 'ca' didn't have
9598 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9600 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9601 The interface is as follows:
9602 Applications can use
9603 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9604 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9605 "off" is now the default.
9606 The library internally uses
9607 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9608 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9609 to disable memory-checking temporarily.
9611 Some inconsistent states that previously were possible (and were
9612 even the default) are now avoided.
9614 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9615 with each memory chunk allocated; this is occasionally more helpful
9616 than just having a counter.
9618 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9620 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9624 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9625 which largely parallels "options", but is for changing API behaviour,
9626 whereas "options" are about protocol behaviour.
9627 Initial "mode" flags are:
9629 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9630 a single record has been written.
9631 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9632 retries use the same buffer location.
9633 (But all of the contents must be
9637 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9640 *) Fix problems with no-hmac etc.
9641 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9643 *) New functions RSA_get_default_method(), RSA_set_method() and
9644 RSA_get_method(). These allows replacement of RSA_METHODs without having
9645 to mess around with the internals of an RSA structure.
9648 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9649 Also really enable memory leak checks in openssl.c and in some
9651 [Chad C. Mulligan, Bodo Moeller]
9653 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9654 up the length of negative integers. This has now been simplified to just
9655 store the length when it is first determined and use it later, rather
9656 than trying to keep track of where data is copied and updating it to
9658 [Steve Henson, reported by Brien Wheeler
9659 <bwheeler@authentica-security.com>]
9661 *) Add a new function PKCS7_signatureVerify. This allows the verification
9662 of a PKCS#7 signature but with the signing certificate passed to the
9663 function itself. This contrasts with PKCS7_dataVerify which assumes the
9664 certificate is present in the PKCS#7 structure. This isn't always the
9665 case: certificates can be omitted from a PKCS#7 structure and be
9666 distributed by "out of band" means (such as a certificate database).
9669 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9670 function prototypes in pem.h, also change util/mkdef.pl to add the
9671 necessary function names.
9674 *) mk1mf.pl (used by Windows builds) did not properly read the
9675 options set by Configure in the top level Makefile, and Configure
9676 was not even able to write more than one option correctly.
9677 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9680 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9681 file to be loaded from a BIO or FILE pointer. The BIO version will
9682 for example allow memory BIOs to contain config info.
9685 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9686 Whoever hopes to achieve shared-library compatibility across versions
9687 must use this, not the compile-time macro.
9688 (Exercise 0.9.4: Which is the minimum library version required by
9690 Note: All this applies only to multi-threaded programs, others don't
9694 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9695 through a BIO pair triggered the default case, i.e.
9696 SSLerr(...,SSL_R_UNKNOWN_STATE).
9699 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9700 can use the SSL library even if none of the specific BIOs is
9704 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9705 for the encoded length.
9706 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9708 *) Add initial documentation of the X509V3 functions.
9711 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9712 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9713 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9714 secure PKCS#8 private key format with a high iteration count.
9717 *) Fix determination of Perl interpreter: A perl or perl5
9718 _directory_ in $PATH was also accepted as the interpreter.
9719 [Ralf S. Engelschall]
9721 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9722 wrong with it but it was very old and did things like calling
9723 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9727 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9728 to use the new extension code.
9731 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9732 with macros. This should make it easier to change their form, add extra
9733 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9737 *) Add to configuration table a new entry that can specify an alternative
9738 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9739 according to Mark Crispin <MRC@Panda.COM>.
9743 *) DES CBC did not update the IV. Weird.
9746 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9747 Changing the behaviour of the former might break existing programs --
9748 where IV updating is needed, des_ncbc_encrypt can be used.
9751 *) When bntest is run from "make test" it drives bc to check its
9752 calculations, as well as internally checking them. If an internal check
9753 fails, it needs to cause bc to give a non-zero result or make test carries
9754 on without noticing the failure. Fixed.
9757 *) DES library cleanups.
9760 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9761 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9762 ciphers. NOTE: although the key derivation function has been verified
9763 against some published test vectors it has not been extensively tested
9764 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9768 *) Instead of "mkdir -p", which is not fully portable, use new
9769 Perl script "util/mkdir-p.pl".
9772 *) Rewrite the way password based encryption (PBE) is handled. It used to
9773 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9774 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9775 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9776 the 'parameter' field of the AlgorithmIdentifier is passed to the
9777 underlying key generation function so it must do its own ASN1 parsing.
9778 This has also changed the EVP_PBE_CipherInit() function which now has a
9779 'parameter' argument instead of literal salt and iteration count values
9780 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9783 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9784 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9785 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9786 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9787 value was just used as a "magic string" and not used directly its
9788 value doesn't matter.
9791 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9795 *) "linux-sparc64" configuration (ultrapenguin).
9796 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9797 "linux-sparc" configuration.
9798 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9800 *) config now generates no-xxx options for missing ciphers.
9803 *) Support the EBCDIC character set (work in progress).
9804 File ebcdic.c not yet included because it has a different license.
9805 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9807 *) Support BS2000/OSD-POSIX.
9808 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9810 *) Make callbacks for key generation use void * instead of char *.
9813 *) Make S/MIME samples compile (not yet tested).
9816 *) Additional typesafe stacks.
9819 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9823 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9825 *) New configuration variant "sco5-gcc".
9827 *) Updated some demos.
9828 [Sean O Riordain, Wade Scholine]
9830 *) Add missing BIO_free at exit of pkcs12 application.
9833 *) Fix memory leak in conf.c.
9836 *) Updates for Win32 to assembler version of MD5.
9839 *) Set #! path to perl in apps/der_chop to where we found it
9840 instead of using a fixed path.
9843 *) SHA library changes for irix64-mips4-cc.
9846 *) Improvements for VMS support.
9850 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9852 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9853 This also avoids the problems with SC4.2 and unpatched SC5.
9854 [Andy Polyakov <appro@fy.chalmers.se>]
9856 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9857 These are required because of the typesafe stack would otherwise break
9858 existing code. If old code used a structure member which used to be STACK
9859 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9860 sk_num or sk_value it would produce an error because the num, data members
9861 are not present in STACK_OF. Now it just produces a warning. sk_set
9862 replaces the old method of assigning a value to sk_value
9863 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9864 that does this will no longer work (and should use sk_set instead) but
9865 this could be regarded as a "questionable" behaviour anyway.
9868 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9869 correctly handle encrypted S/MIME data.
9872 *) Change type of various DES function arguments from des_cblock
9873 (which means, in function argument declarations, pointer to char)
9874 to des_cblock * (meaning pointer to array with 8 char elements),
9875 which allows the compiler to do more typechecking; it was like
9876 that back in SSLeay, but with lots of ugly casts.
9878 Introduce new type const_des_cblock.
9881 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9882 problems: find RecipientInfo structure that matches recipient certificate
9883 and initialise the ASN1 structures properly based on passed cipher.
9886 *) Belatedly make the BN tests actually check the results.
9889 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9890 to and from BNs: it was completely broken. New compilation option
9891 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9892 key elements as negative integers.
9895 *) Reorganize and speed up MD5.
9896 [Andy Polyakov <appro@fy.chalmers.se>]
9899 [Richard Levitte <richard@levitte.org>]
9901 *) New option -out to asn1parse to allow the parsed structure to be
9902 output to a file. This is most useful when combined with the -strparse
9903 option to examine the output of things like OCTET STRINGS.
9906 *) Make SSL library a little more fool-proof by not requiring any longer
9907 that SSL_set_{accept,connect}_state be called before
9908 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9909 in many applications because usually everything *appeared* to work as
9910 intended anyway -- now it really works as intended).
9913 *) Move openssl.cnf out of lib/.
9916 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9917 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9918 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9919 [Ralf S. Engelschall]
9921 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9922 handle PKCS#7 enveloped data properly.
9923 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9925 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9926 copying pointers. The cert_st handling is changed by this in
9927 various ways (and thus what used to be known as ctx->default_cert
9928 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9929 any longer when s->cert does not give us what we need).
9930 ssl_cert_instantiate becomes obsolete by this change.
9931 As soon as we've got the new code right (possibly it already is?),
9932 we have solved a couple of bugs of the earlier code where s->cert
9933 was used as if it could not have been shared with other SSL structures.
9935 Note that using the SSL API in certain dirty ways now will result
9936 in different behaviour than observed with earlier library versions:
9937 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9938 does not influence s as it used to.
9940 In order to clean up things more thoroughly, inside SSL_SESSION
9941 we don't use CERT any longer, but a new structure SESS_CERT
9942 that holds per-session data (if available); currently, this is
9943 the peer's certificate chain and, for clients, the server's certificate
9944 and temporary key. CERT holds only those values that can have
9945 meaningful defaults in an SSL_CTX.
9948 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9949 from the internal representation. Various PKCS#7 fixes: remove some
9950 evil casts and set the enc_dig_alg field properly based on the signing
9954 *) Allow PKCS#12 password to be set from the command line or the
9955 environment. Let 'ca' get its config file name from the environment
9956 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9960 *) Allow certificate policies extension to use an IA5STRING for the
9961 organization field. This is contrary to the PKIX definition but
9962 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9966 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9967 without disallowing inline assembler and the like for non-pedantic builds.
9970 *) Support Borland C++ builder.
9971 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9976 *) SHA-1 cleanups and performance enhancements.
9977 [Andy Polyakov <appro@fy.chalmers.se>]
9979 *) Sparc v8plus assembler for the bignum library.
9980 [Andy Polyakov <appro@fy.chalmers.se>]
9982 *) Accept any -xxx and +xxx compiler options in Configure.
9985 *) Update HPUX configuration.
9988 *) Add missing sk_<type>_unshift() function to safestack.h
9989 [Ralf S. Engelschall]
9991 *) New function SSL_CTX_use_certificate_chain_file that sets the
9992 "extra_cert"s in addition to the certificate. (This makes sense
9993 only for "PEM" format files, as chains as a whole are not
9997 *) Support verify_depth from the SSL API.
9998 x509_vfy.c had what can be considered an off-by-one-error:
9999 Its depth (which was not part of the external interface)
10000 was actually counting the number of certificates in a chain;
10001 now it really counts the depth.
10004 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10005 instead of X509err, which often resulted in confusing error
10006 messages since the error codes are not globally unique
10007 (e.g. an alleged error in ssl3_accept when a certificate
10008 didn't match the private key).
10010 *) New function SSL_CTX_set_session_id_context that allows to set a default
10011 value (so that you don't need SSL_set_session_id_context for each
10012 connection using the SSL_CTX).
10015 *) OAEP decoding bug fix.
10018 *) Support INSTALL_PREFIX for package builders, as proposed by
10022 *) New Configure options "threads" and "no-threads". For systems
10023 where the proper compiler options are known (currently Solaris
10024 and Linux), "threads" is the default.
10027 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10030 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10031 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10032 such as /usr/local/bin.
10035 *) "make linux-shared" to build shared libraries.
10036 [Niels Poppe <niels@netbox.org>]
10038 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10041 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10042 extension adding in x509 utility.
10045 *) Remove NOPROTO sections and error code comments.
10048 *) Partial rewrite of the DEF file generator to now parse the ANSI
10052 *) New Configure options --prefix=DIR and --openssldir=DIR.
10055 *) Complete rewrite of the error code script(s). It is all now handled
10056 by one script at the top level which handles error code gathering,
10057 header rewriting and C source file generation. It should be much better
10058 than the old method: it now uses a modified version of Ulf's parser to
10059 read the ANSI prototypes in all header files (thus the old K&R definitions
10060 aren't needed for error creation any more) and do a better job of
10061 translating function codes into names. The old 'ASN1 error code imbedded
10062 in a comment' is no longer necessary and it doesn't use .err files which
10063 have now been deleted. Also the error code call doesn't have to appear all
10064 on one line (which resulted in some large lines...).
10067 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10070 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10071 0 (which usually indicates a closed connection), but continue reading.
10074 *) Fix some race conditions.
10077 *) Add support for CRL distribution points extension. Add Certificate
10078 Policies and CRL distribution points documentation.
10081 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10084 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10085 8 of keying material. Merlin has also confirmed interop with this fix
10086 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10087 [Merlin Hughes <merlin@baltimore.ie>]
10089 *) Fix lots of warnings.
10090 [Richard Levitte <levitte@stacken.kth.se>]
10092 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10093 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10094 [Richard Levitte <levitte@stacken.kth.se>]
10096 *) Fix problems with sizeof(long) == 8.
10097 [Andy Polyakov <appro@fy.chalmers.se>]
10099 *) Change functions to ANSI C.
10102 *) Fix typos in error codes.
10103 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10105 *) Remove defunct assembler files from Configure.
10108 *) SPARC v8 assembler BIGNUM implementation.
10109 [Andy Polyakov <appro@fy.chalmers.se>]
10111 *) Support for Certificate Policies extension: both print and set.
10112 Various additions to support the r2i method this uses.
10115 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10116 return a const string when you are expecting an allocated buffer.
10119 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10120 types DirectoryString and DisplayText.
10123 *) Add code to allow r2i extensions to access the configuration database,
10124 add an LHASH database driver and add several ctx helper functions.
10127 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10128 fail when they extended the size of a BIGNUM.
10131 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10132 support typesafe stack.
10135 *) Fix typo in SSL_[gs]et_options().
10136 [Nils Frostberg <nils@medcom.se>]
10138 *) Delete various functions and files that belonged to the (now obsolete)
10139 old X509V3 handling code.
10142 *) New Configure option "rsaref".
10145 *) Don't auto-generate pem.h.
10148 *) Introduce type-safe ASN.1 SETs.
10151 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10152 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10154 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10155 that links with OpenSSL (well at least cause lots of warnings), but fear
10156 not: the conversion is trivial, and it eliminates loads of evil casts. A
10157 few STACKed things have been converted already. Feel free to convert more.
10158 In the fullness of time, I'll do away with the STACK type altogether.
10161 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10162 specified in <certfile> by updating the entry in the index.txt file.
10163 This way one no longer has to edit the index.txt file manually for
10164 revoking a certificate. The -revoke option does the gory details now.
10165 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10167 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10168 `-text' option at all and this way the `-noout -text' combination was
10169 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10170 [Ralf S. Engelschall]
10172 *) Make sure a corresponding plain text error message exists for the
10173 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10174 verify callback function determined that a certificate was revoked.
10175 [Ralf S. Engelschall]
10177 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10178 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10179 all available cipers including rc5, which was forgotten until now.
10180 In order to let the testing shell script know which algorithms
10181 are available, a new (up to now undocumented) command
10182 "openssl list-cipher-commands" is used.
10185 *) Bugfix: s_client occasionally would sleep in select() when
10186 it should have checked SSL_pending() first.
10189 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10190 the raw DSA values prior to ASN.1 encoding.
10193 *) Tweaks to Configure
10194 [Niels Poppe <niels@netbox.org>]
10196 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10200 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10203 *) New config option to avoid instructions that are illegal on the 80386.
10204 The default code is faster, but requires at least a 486.
10207 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10208 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10209 same as SSL2_VERSION anyway.
10212 *) New "-showcerts" option for s_client.
10215 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10216 application. Various cleanups and fixes.
10219 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10220 modify error routines to work internally. Add error codes and PBE init
10221 to library startup routines.
10224 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10225 packing functions to asn1 and evp. Changed function names and error
10226 codes along the way.
10229 *) PKCS12 integration: and so it begins... First of several patches to
10230 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10231 objects to objects.h
10234 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10235 and display support for Thawte strong extranet extension.
10238 *) Add LinuxPPC support.
10239 [Jeff Dubrule <igor@pobox.org>]
10241 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10242 bn_div_words in alpha.s.
10243 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10245 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10246 OAEP isn't supported when OpenSSL is built with RSAref.
10247 [Ulf Moeller <ulf@fitug.de>]
10249 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10250 so they no longer are missing under -DNOPROTO.
10251 [Soren S. Jorvang <soren@t.dk>]
10254 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10256 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10257 doesn't work when the session is reused. Coming soon!
10260 *) Fix a security hole, that allows sessions to be reused in the wrong
10261 context thus bypassing client cert protection! All software that uses
10262 client certs and session caches in multiple contexts NEEDS PATCHING to
10263 allow session reuse! A fuller solution is in the works.
10264 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10266 *) Some more source tree cleanups (removed obsolete files
10267 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10268 permission on "config" script to be executable) and a fix for the INSTALL
10270 [Ulf Moeller <ulf@fitug.de>]
10272 *) Remove some legacy and erroneous uses of malloc, free instead of
10274 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10276 *) Make rsa_oaep_test return non-zero on error.
10277 [Ulf Moeller <ulf@fitug.de>]
10279 *) Add support for native Solaris shared libraries. Configure
10280 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10281 if someone would make that last step automatic.
10282 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10284 *) ctx_size was not built with the right compiler during "make links". Fixed.
10287 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10288 except NULL ciphers". This means the default cipher list will no longer
10289 enable NULL ciphers. They need to be specifically enabled e.g. with
10290 the string "DEFAULT:eNULL".
10293 *) Fix to RSA private encryption routines: if p < q then it would
10294 occasionally produce an invalid result. This will only happen with
10295 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10298 *) Be less restrictive and allow also `perl util/perlpath.pl
10299 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10300 because this way one can also use an interpreter named `perl5' (which is
10301 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10302 installed as `perl').
10303 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10305 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10306 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10308 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10309 advapi32.lib to Win32 build and change the pem test comparison
10310 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10311 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10312 and crypto/des/ede_cbcm_enc.c.
10315 *) DES quad checksum was broken on big-endian architectures. Fixed.
10318 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10319 Win32 test batch file so it (might) work again. The Win32 test batch file
10320 is horrible: I feel ill....
10323 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10324 in e_os.h. Audit of header files to check ANSI and non ANSI
10325 sections: 10 functions were absent from non ANSI section and not exported
10326 from Windows DLLs. Fixed up libeay.num for new functions.
10329 *) Make `openssl version' output lines consistent.
10330 [Ralf S. Engelschall]
10332 *) Fix Win32 symbol export lists for BIO functions: Added
10333 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10334 to ms/libeay{16,32}.def.
10335 [Ralf S. Engelschall]
10337 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10338 fine under Unix and passes some trivial tests I've now added. But the
10339 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10340 added to make sure no one expects that this stuff really works in the
10341 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10342 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10344 [Ralf S. Engelschall]
10346 *) Fix the generation of two part addresses in perl.
10347 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10349 *) Add config entry for Linux on MIPS.
10350 [John Tobey <jtobey@channel1.com>]
10352 *) Make links whenever Configure is run, unless we are on Windoze.
10355 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10356 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10360 *) Add a useful kludge to allow package maintainers to specify compiler and
10361 other platforms details on the command line without having to patch the
10362 Configure script everytime: One now can use ``perl Configure
10363 <id>:<details>'', i.e. platform ids are allowed to have details appended
10364 to them (separated by colons). This is treated as there would be a static
10365 pre-configured entry in Configure's %table under key <id> with value
10366 <details> and ``perl Configure <id>'' is called. So, when you want to
10367 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10368 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10369 now, which overrides the FreeBSD-elf entry on-the-fly.
10370 [Ralf S. Engelschall]
10372 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10375 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10376 on the `perl Configure ...' command line. This way one can compile
10377 OpenSSL libraries with Position Independent Code (PIC) which is needed
10378 for linking it into DSOs.
10379 [Ralf S. Engelschall]
10381 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10385 *) Cleaned up the LICENSE document: The official contact for any license
10386 questions now is the OpenSSL core team under openssl-core@openssl.org.
10387 And add a paragraph about the dual-license situation to make sure people
10388 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10389 to the OpenSSL toolkit.
10390 [Ralf S. Engelschall]
10392 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10393 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10394 Additionally cleaned up the `make links' target: Remove unnecessary
10395 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10396 to speed processing and no longer clutter the display with confusing
10397 stuff. Instead only the actually done links are displayed.
10398 [Ralf S. Engelschall]
10400 *) Permit null encryption ciphersuites, used for authentication only. It used
10401 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10402 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10406 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10407 signed attributes when verifying signatures (this would break them),
10408 the detached data encoding was wrong and public keys obtained using
10409 X509_get_pubkey() weren't freed.
10412 *) Add text documentation for the BUFFER functions. Also added a work around
10413 to a Win95 console bug. This was triggered by the password read stuff: the
10414 last character typed gets carried over to the next fread(). If you were
10415 generating a new cert request using 'req' for example then the last
10416 character of the passphrase would be CR which would then enter the first
10420 *) Added the new `Includes OpenSSL Cryptography Software' button as
10421 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10422 button and can be used by applications based on OpenSSL to show the
10423 relationship to the OpenSSL project.
10424 [Ralf S. Engelschall]
10426 *) Remove confusing variables in function signatures in files
10427 ssl/ssl_lib.c and ssl/ssl.h.
10428 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10430 *) Don't install bss_file.c under PREFIX/include/
10431 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10433 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10434 functions that return function pointers and has support for NT specific
10435 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10436 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10437 unsigned to signed types: this was killing the Win32 compile.
10440 *) Add new certificate file to stack functions,
10441 SSL_add_dir_cert_subjects_to_stack() and
10442 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10443 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10444 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10445 This means that Apache-SSL and similar packages don't have to mess around
10446 to add as many CAs as they want to the preferred list.
10449 *) Experiment with doxygen documentation. Currently only partially applied to
10451 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10452 openssl.doxy as the configuration file.
10455 *) Get rid of remaining C++-style comments which strict C compilers hate.
10456 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10458 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10459 compiled in by default: it has problems with large keys.
10462 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10463 DH private keys and/or callback functions which directly correspond to
10464 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10465 is needed for applications which have to configure certificates on a
10466 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10468 For the RSA certificate situation is makes no difference, but
10469 for the DSA certificate situation this fixes the "no shared cipher"
10470 problem where the OpenSSL cipher selection procedure failed because the
10471 temporary keys were not overtaken from the context and the API provided
10472 no way to reconfigure them.
10473 The new functions now let applications reconfigure the stuff and they
10474 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10475 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10476 non-public-API function ssl_cert_instantiate() is used as a helper
10477 function and also to reduce code redundancy inside ssl_rsa.c.
10478 [Ralf S. Engelschall]
10480 *) Move s_server -dcert and -dkey options out of the undocumented feature
10481 area because they are useful for the DSA situation and should be
10482 recognized by the users.
10483 [Ralf S. Engelschall]
10485 *) Fix the cipher decision scheme for export ciphers: the export bits are
10486 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10487 SSL_EXP_MASK. So, the original variable has to be used instead of the
10488 already masked variable.
10489 [Richard Levitte <levitte@stacken.kth.se>]
10491 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10492 [Richard Levitte <levitte@stacken.kth.se>]
10494 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10495 from `int' to `unsigned int' because it's a length and initialized by
10496 EVP_DigestFinal() which expects an `unsigned int *'.
10497 [Richard Levitte <levitte@stacken.kth.se>]
10499 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10500 script. Instead use the usual Shell->Perl transition trick.
10501 [Ralf S. Engelschall]
10503 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10504 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10505 -noout -modulus' as it's already the case for `openssl rsa -noout
10506 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10507 currently the public key is printed (a decision which was already done by
10508 `openssl dsa -modulus' in the past) which serves a similar purpose.
10509 Additionally the NO_RSA no longer completely removes the whole -modulus
10510 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10512 [Ralf S. Engelschall]
10514 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10515 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10516 [Arne Ansper <arne@ats.cyber.ee>]
10518 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10519 to be added. Now both 'req' and 'ca' can use new objects defined in the
10523 *) Add cool BIO that does syslog (or event log on NT).
10524 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10526 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10527 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10528 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10529 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10532 *) Add preliminary config info for new extension code.
10535 *) Make RSA_NO_PADDING really use no padding.
10536 [Ulf Moeller <ulf@fitug.de>]
10538 *) Generate errors when private/public key check is done.
10541 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10542 for some CRL extensions and new objects added.
10545 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10546 key usage extension and fuller support for authority key id.
10549 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10550 padding method for RSA, which is recommended for new applications in PKCS
10551 #1 v2.0 (RFC 2437, October 1998).
10552 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10553 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10554 against Bleichbacher's attack on RSA.
10555 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10558 *) Updates to the new SSL compression code
10559 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10561 *) Fix so that the version number in the master secret, when passed
10562 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10563 (because the server will not accept higher), that the version number
10564 is 0x03,0x01, not 0x03,0x00
10565 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10567 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10568 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10569 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10572 *) Support for RAW extensions where an arbitrary extension can be
10573 created by including its DER encoding. See apps/openssl.cnf for
10577 *) Make sure latest Perl versions don't interpret some generated C array
10578 code as Perl array code in the crypto/err/err_genc.pl script.
10579 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10581 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10582 not many people have the assembler. Various Win32 compilation fixes and
10583 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10584 build instructions.
10587 *) Modify configure script 'Configure' to automatically create crypto/date.h
10588 file under Win32 and also build pem.h from pem.org. New script
10589 util/mkfiles.pl to create the MINFO file on environments that can't do a
10590 'make files': perl util/mkfiles.pl >MINFO should work.
10593 *) Major rework of DES function declarations, in the pursuit of correctness
10594 and purity. As a result, many evil casts evaporated, and some weirdness,
10595 too. You may find this causes warnings in your code. Zapping your evil
10596 casts will probably fix them. Mostly.
10599 *) Fix for a typo in asn1.h. Bug fix to object creation script
10600 obj_dat.pl. It considered a zero in an object definition to mean
10601 "end of object": none of the objects in objects.h have any zeros
10602 so it wasn't spotted.
10603 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10605 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10606 Masking (CBCM). In the absence of test vectors, the best I have been able
10607 to do is check that the decrypt undoes the encrypt, so far. Send me test
10608 vectors if you have them.
10611 *) Correct calculation of key length for export ciphers (too much space was
10612 allocated for null ciphers). This has not been tested!
10615 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10616 message is now correct (it understands "crypto" and "ssl" on its
10617 command line). There is also now an "update" option. This will update
10618 the util/ssleay.num and util/libeay.num files with any new functions.
10620 perl util/mkdef.pl crypto ssl update
10621 it will update them.
10624 *) Overhauled the Perl interface (perl/*):
10625 - ported BN stuff to OpenSSL's different BN library
10626 - made the perl/ source tree CVS-aware
10627 - renamed the package from SSLeay to OpenSSL (the files still contain
10628 their history because I've copied them in the repository)
10629 - removed obsolete files (the test scripts will be replaced
10630 by better Test::Harness variants in the future)
10631 [Ralf S. Engelschall]
10633 *) First cut for a very conservative source tree cleanup:
10634 1. merge various obsolete readme texts into doc/ssleay.txt
10635 where we collect the old documents and readme texts.
10636 2. remove the first part of files where I'm already sure that we no
10637 longer need them because of three reasons: either they are just temporary
10638 files which were left by Eric or they are preserved original files where
10639 I've verified that the diff is also available in the CVS via "cvs diff
10640 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10641 the crypto/md/ stuff).
10642 [Ralf S. Engelschall]
10644 *) More extension code. Incomplete support for subject and issuer alt
10645 name, issuer and authority key id. Change the i2v function parameters
10646 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10647 what that's for :-) Fix to ASN1 macro which messed up
10648 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10651 *) Preliminary support for ENUMERATED type. This is largely copied from the
10655 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10656 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10658 *) Make sure `make rehash' target really finds the `openssl' program.
10659 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10661 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10662 like to hear about it if this slows down other processors.
10665 *) Add CygWin32 platform information to Configure script.
10666 [Alan Batie <batie@aahz.jf.intel.com>]
10668 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10669 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10671 *) New program nseq to manipulate netscape certificate sequences
10674 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10678 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10679 but the BN code had some problems that would cause failures when
10680 doing certificate verification and some other functions.
10681 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10683 *) Add ASN1 and PEM code to support netscape certificate sequences.
10686 *) Add ASN1 and PEM code to support netscape certificate sequences.
10689 *) Add several PKIX and private extended key usage OIDs.
10692 *) Modify the 'ca' program to handle the new extension code. Modify
10693 openssl.cnf for new extension format, add comments.
10696 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10697 and add a sample to openssl.cnf so req -x509 now adds appropriate
10701 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10702 error code, add initial support to X509_print() and x509 application.
10705 *) Takes a deep breath and start adding X509 V3 extension support code. Add
10706 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10707 stuff is currently isolated and isn't even compiled yet.
10710 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10711 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10712 Removed the versions check from X509 routines when loading extensions:
10713 this allows certain broken certificates that don't set the version
10714 properly to be processed.
10717 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10718 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10719 can still be regenerated with "make depend".
10722 *) Spelling mistake in C version of CAST-128.
10723 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10725 *) Changes to the error generation code. The perl script err-code.pl
10726 now reads in the old error codes and retains the old numbers, only
10727 adding new ones if necessary. It also only changes the .err files if new
10728 codes are added. The makefiles have been modified to only insert errors
10729 when needed (to avoid needlessly modifying header files). This is done
10730 by only inserting errors if the .err file is newer than the auto generated
10731 C file. To rebuild all the error codes from scratch (the old behaviour)
10732 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10733 or delete all the .err files.
10736 *) CAST-128 was incorrectly implemented for short keys. The C version has
10737 been fixed, but is untested. The assembler versions are also fixed, but
10738 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10739 to regenerate it if needed.
10740 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10741 Hagino <itojun@kame.net>]
10743 *) File was opened incorrectly in randfile.c.
10744 [Ulf Möller <ulf@fitug.de>]
10746 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10747 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10748 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10749 al: it's just almost always a UTCTime. Note this patch adds new error
10750 codes so do a "make errors" if there are problems.
10753 *) Correct Linux 1 recognition in config.
10754 [Ulf Möller <ulf@fitug.de>]
10756 *) Remove pointless MD5 hash when using DSA keys in ca.
10757 [Anonymous <nobody@replay.com>]
10759 *) Generate an error if given an empty string as a cert directory. Also
10760 generate an error if handed NULL (previously returned 0 to indicate an
10761 error, but didn't set one).
10762 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10764 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10767 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10768 parameters. This was causing a warning which killed off the Win32 compile.
10771 *) Remove C++ style comments from crypto/bn/bn_local.h.
10772 [Neil Costigan <neil.costigan@celocom.com>]
10774 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10775 based on a text string, looking up short and long names and finally
10776 "dot" format. The "dot" format stuff didn't work. Added new function
10777 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10778 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10779 OID is not part of the table.
10782 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10783 X509_LOOKUP_by_alias().
10786 *) Sort openssl functions by name.
10789 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10790 encryption from sample DSA keys (in case anyone is interested the password
10794 *) Make _all_ *_free functions accept a NULL pointer.
10795 [Frans Heymans <fheymans@isaserver.be>]
10797 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10799 [Anonymous <nobody@replay.com>]
10801 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10802 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10804 *) Don't blow it for numeric -newkey arguments to apps/req.
10805 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10807 *) Temp key "for export" tests were wrong in s3_srvr.c.
10808 [Anonymous <nobody@replay.com>]
10810 *) Add prototype for temp key callback functions
10811 SSL_CTX_set_tmp_{rsa,dh}_callback().
10814 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10815 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10818 *) X509_name_add_entry() freed the wrong thing after an error.
10819 [Arne Ansper <arne@ats.cyber.ee>]
10821 *) rsa_eay.c would attempt to free a NULL context.
10822 [Arne Ansper <arne@ats.cyber.ee>]
10824 *) BIO_s_socket() had a broken should_retry() on Windoze.
10825 [Arne Ansper <arne@ats.cyber.ee>]
10827 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10828 [Arne Ansper <arne@ats.cyber.ee>]
10830 *) Make sure the already existing X509_STORE->depth variable is initialized
10831 in X509_STORE_new(), but document the fact that this variable is still
10832 unused in the certificate verification process.
10833 [Ralf S. Engelschall]
10835 *) Fix the various library and apps files to free up pkeys obtained from
10836 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10839 *) Fix reference counting in X509_PUBKEY_get(). This makes
10840 demos/maurice/example2.c work, amongst others, probably.
10841 [Steve Henson and Ben Laurie]
10843 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10844 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10845 are no longer created. This way we have a single and consistent command
10846 line interface `openssl <command>', similar to `cvs <command>'.
10847 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10849 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10850 BIT STRING wrapper always have zero unused bits.
10853 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10856 *) Make the top-level INSTALL documentation easier to understand.
10859 *) Makefiles updated to exit if an error occurs in a sub-directory
10860 make (including if user presses ^C) [Paul Sutton]
10862 *) Make Montgomery context stuff explicit in RSA data structure.
10865 *) Fix build order of pem and err to allow for generated pem.h.
10868 *) Fix renumbering bug in X509_NAME_delete_entry().
10871 *) Enhanced the err-ins.pl script so it makes the error library number
10872 global and can add a library name. This is needed for external ASN1 and
10873 other error libraries.
10876 *) Fixed sk_insert which never worked properly.
10879 *) Fix ASN1 macros so they can handle indefinite length constructed
10880 EXPLICIT tags. Some non standard certificates use these: they can now
10884 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10885 into a single doc/ssleay.txt bundle. This way the information is still
10886 preserved but no longer messes up this directory. Now it's new room for
10887 the new set of documentation files.
10888 [Ralf S. Engelschall]
10890 *) SETs were incorrectly DER encoded. This was a major pain, because they
10891 shared code with SEQUENCEs, which aren't coded the same. This means that
10892 almost everything to do with SETs or SEQUENCEs has either changed name or
10893 number of arguments.
10894 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10896 *) Fix test data to work with the above.
10899 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10900 was already fixed by Eric for 0.9.1 it seems.
10901 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10903 *) Autodetect FreeBSD3.
10906 *) Fix various bugs in Configure. This affects the following platforms:
10910 unixware-2.0-pentium
10914 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10915 before they are needed.
10918 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10922 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10924 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10925 changed SSLeay to OpenSSL in version strings.
10926 [Ralf S. Engelschall]
10928 *) Some fixups to the top-level documents.
10931 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10932 because the symlink to include/ was missing.
10933 [Ralf S. Engelschall]
10935 *) Incorporated the popular no-RSA/DSA-only patches
10936 which allow to compile a RSA-free SSLeay.
10937 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10939 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10940 when "ssleay" is still not found.
10941 [Ralf S. Engelschall]
10943 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10944 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10946 *) Updated the README file.
10947 [Ralf S. Engelschall]
10949 *) Added various .cvsignore files in the CVS repository subdirs
10950 to make a "cvs update" really silent.
10951 [Ralf S. Engelschall]
10953 *) Recompiled the error-definition header files and added
10954 missing symbols to the Win32 linker tables.
10955 [Ralf S. Engelschall]
10957 *) Cleaned up the top-level documents;
10958 o new files: CHANGES and LICENSE
10959 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10960 o merged COPYRIGHT into LICENSE
10961 o removed obsolete TODO file
10962 o renamed MICROSOFT to INSTALL.W32
10963 [Ralf S. Engelschall]
10965 *) Removed dummy files from the 0.9.1b source tree:
10966 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10967 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10968 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10969 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10970 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10971 [Ralf S. Engelschall]
10973 *) Added various platform portability fixes.
10976 *) The Genesis of the OpenSSL rpject:
10977 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10978 Young and Tim J. Hudson created while they were working for C2Net until
10980 [The OpenSSL Project]
10983 Changes between 0.9.0b and 0.9.1b [not released]
10985 *) Updated a few CA certificates under certs/
10988 *) Changed some BIGNUM api stuff.
10991 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10992 DGUX x86, Linux Alpha, etc.
10995 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10996 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11000 *) Add -strparse option to asn1pars program which parses nested
11002 [Dr Stephen Henson <shenson@bigfoot.com>]
11004 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11007 *) DSA fix for "ca" program.
11010 *) Added "-genkey" option to "dsaparam" program.
11013 *) Added RIPE MD160 (rmd160) message digest.
11016 *) Added -a (all) option to "ssleay version" command.
11019 *) Added PLATFORM define which is the id given to Configure.
11022 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11025 *) Extended the ASN.1 parser routines.
11028 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11031 *) Added a BN_CTX to the BN library.
11034 *) Fixed the weak key values in DES library
11037 *) Changed API in EVP library for cipher aliases.
11040 *) Added support for RC2/64bit cipher.
11043 *) Converted the lhash library to the crypto/mem.c functions.
11046 *) Added more recognized ASN.1 object ids.
11049 *) Added more RSA padding checks for SSL/TLS.
11052 *) Added BIO proxy/filter functionality.
11055 *) Added extra_certs to SSL_CTX which can be used
11056 send extra CA certificates to the client in the CA cert chain sending
11057 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11060 *) Now Fortezza is denied in the authentication phase because
11061 this is key exchange mechanism is not supported by SSLeay at all.
11064 *) Additional PKCS1 checks.
11067 *) Support the string "TLSv1" for all TLS v1 ciphers.
11070 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11071 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11074 *) Fixed a few memory leaks.
11077 *) Fixed various code and comment typos.
11080 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11081 bytes sent in the client random.
11082 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob