5 Changes between 1.0.1h and 1.0.2 [xx XXX xxxx]
7 *) Add support for the SignedCertificateTimestampList certificate and
8 OCSP response extensions from RFC6962.
11 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
12 for corner cases. (Certain input points at infinity could lead to
13 bogus results, with non-infinity inputs mapped to infinity too.)
16 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
17 This covers AES, SHA256/512 and GHASH. "Initial" means that most
18 common cases are optimized and there still is room for further
19 improvements. Vector Permutation AES for Altivec is also added.
22 *) Add support for little-endian ppc64 Linux target.
25 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
26 SHA1, SHA256 and GHASH. "Initial" means that most common cases
27 are optimized and there still is room for further improvements.
28 Both 32- and 64-bit modes are supported.
29 [Andy Polyakov, Ard Biesheuvel (Linaro)]
31 *) Improved ARMv7 NEON support.
34 *) Support for SPARC Architecture 2011 crypto extensions, first
35 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
36 SHA256/512, MD5, GHASH and modular exponentiation.
37 [Andy Polyakov, David Miller]
39 *) Accelerated modular exponentiation for Intel processors, a.k.a.
41 [Shay Gueron (Intel Corp)]
43 *) Support for new and upcoming Intel processors, including AVX2,
44 BMI and SHA ISA extensions. This includes additional "stitched"
45 implementations, AESNI-SHA256 and GCM, and multi-buffer support
48 This work was sponsored by Intel Corp.
51 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
52 this fixes a limiation in previous versions of OpenSSL.
55 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
56 MGF1 digest and OAEP label.
59 *) Add EVP support for key wrapping algorithms, to avoid problems with
60 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
61 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
62 algorithms and include tests cases.
65 *) Add functions to allocate and set the fields of an ECDSA_METHOD
67 [Douglas E. Engert, Steve Henson]
69 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
70 difference in days and seconds between two tm or ASN1_TIME structures.
73 *) Add -rev test option to s_server to just reverse order of characters
74 received by client and send back to server. Also prints an abbreviated
75 summary of the connection parameters.
78 *) New option -brief for s_client and s_server to print out a brief summary
79 of connection parameters.
82 *) Add callbacks for arbitrary TLS extensions.
83 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
85 *) New option -crl_download in several openssl utilities to download CRLs
86 from CRLDP extension in certificates.
89 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
92 *) New function X509_CRL_diff to generate a delta CRL from the difference
93 of two full CRLs. Add support to "crl" utility.
96 *) New functions to set lookup_crls function and to retrieve
97 X509_STORE from X509_STORE_CTX.
100 *) Print out deprecated issuer and subject unique ID fields in
104 *) Extend OCSP I/O functions so they can be used for simple general purpose
105 HTTP as well as OCSP. New wrapper function which can be used to download
106 CRLs using the OCSP API.
109 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
112 *) SSL_CONF* functions. These provide a common framework for application
113 configuration using configuration files or command lines.
116 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
117 message callback and prints the results. Needs compile time option
118 "enable-ssl-trace". New options to s_client and s_server to enable
122 *) New ctrl and macro to retrieve supported points extensions.
123 Print out extension in s_server and s_client.
126 *) New functions to retrieve certificate signature and signature
130 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
134 *) New Suite B modes for TLS code. These use and enforce the requirements
135 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
136 only use Suite B curves. The Suite B modes can be set by using the
137 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
140 *) New chain verification flags for Suite B levels of security. Check
141 algorithms are acceptable when flags are set in X509_verify_cert.
144 *) Make tls1_check_chain return a set of flags indicating checks passed
145 by a certificate chain. Add additional tests to handle client
146 certificates: checks for matching certificate type and issuer name
150 *) If an attempt is made to use a signature algorithm not in the peer
151 preference list abort the handshake. If client has no suitable
152 signature algorithms in response to a certificate request do not
156 *) If server EC tmp key is not in client preference list abort handshake.
159 *) Add support for certificate stores in CERT structure. This makes it
160 possible to have different stores per SSL structure or one store in
161 the parent SSL_CTX. Include distint stores for certificate chain
162 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
163 to build and store a certificate chain in CERT structure: returing
164 an error if the chain cannot be built: this will allow applications
165 to test if a chain is correctly configured.
167 Note: if the CERT based stores are not set then the parent SSL_CTX
168 store is used to retain compatibility with existing behaviour.
172 *) New function ssl_set_client_disabled to set a ciphersuite disabled
173 mask based on the current session, check mask when sending client
174 hello and checking the requested ciphersuite.
177 *) New ctrls to retrieve and set certificate types in a certificate
178 request message. Print out received values in s_client. If certificate
179 types is not set with custom values set sensible values based on
180 supported signature algorithms.
183 *) Support for distinct client and server supported signature algorithms.
186 *) Add certificate callback. If set this is called whenever a certificate
187 is required by client or server. An application can decide which
188 certificate chain to present based on arbitrary criteria: for example
189 supported signature algorithms. Add very simple example to s_server.
190 This fixes many of the problems and restrictions of the existing client
191 certificate callback: for example you can now clear an existing
192 certificate and specify the whole chain.
195 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
196 the certificate can be used for (if anything). Set valid_flags field
197 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
198 to have similar checks in it.
200 Add new "cert_flags" field to CERT structure and include a "strict mode".
201 This enforces some TLS certificate requirements (such as only permitting
202 certificate signature algorithms contained in the supported algorithms
203 extension) which some implementations ignore: this option should be used
204 with caution as it could cause interoperability issues.
207 *) Update and tidy signature algorithm extension processing. Work out
208 shared signature algorithms based on preferences and peer algorithms
209 and print them out in s_client and s_server. Abort handshake if no
210 shared signature algorithms.
213 *) Add new functions to allow customised supported signature algorithms
214 for SSL and SSL_CTX structures. Add options to s_client and s_server
218 *) New function SSL_certs_clear() to delete all references to certificates
219 from an SSL structure. Before this once a certificate had been added
220 it couldn't be removed.
223 *) Integrate hostname, email address and IP address checking with certificate
224 verification. New verify options supporting checking in opensl utility.
227 *) Fixes and wildcard matching support to hostname and email checking
228 functions. Add manual page.
229 [Florian Weimer (Red Hat Product Security Team)]
231 *) New functions to check a hostname email or IP address against a
232 certificate. Add options x509 utility to print results of checks against
236 *) Fix OCSP checking.
237 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
239 *) Initial experimental support for explicitly trusted non-root CAs.
240 OpenSSL still tries to build a complete chain to a root but if an
241 intermediate CA has a trust setting included that is used. The first
242 setting is used: whether to trust (e.g., -addtrust option to the x509
246 *) Add -trusted_first option which attempts to find certificates in the
247 trusted store even if an untrusted chain is also supplied.
250 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
251 platform support for Linux and Android.
254 *) Support for linux-x32, ILP32 environment in x86_64 framework.
257 *) Experimental multi-implementation support for FIPS capable OpenSSL.
258 When in FIPS mode the approved implementations are used as normal,
259 when not in FIPS mode the internal unapproved versions are used instead.
260 This means that the FIPS capable OpenSSL isn't forced to use the
261 (often lower perfomance) FIPS implementations outside FIPS mode.
264 *) Transparently support X9.42 DH parameters when calling
265 PEM_read_bio_DHparameters. This means existing applications can handle
266 the new parameter format automatically.
269 *) Initial experimental support for X9.42 DH parameter format: mainly
270 to support use of 'q' parameter for RFC5114 parameters.
273 *) Add DH parameters from RFC5114 including test data to dhtest.
276 *) Support for automatic EC temporary key parameter selection. If enabled
277 the most preferred EC parameters are automatically used instead of
278 hardcoded fixed parameters. Now a server just has to call:
279 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
280 support ECDH and use the most appropriate parameters.
283 *) Enhance and tidy EC curve and point format TLS extension code. Use
284 static structures instead of allocation if default values are used.
285 New ctrls to set curves we wish to support and to retrieve shared curves.
286 Print out shared curves in s_server. New options to s_server and s_client
287 to set list of supported curves.
290 *) New ctrls to retrieve supported signature algorithms and
291 supported curve values as an array of NIDs. Extend openssl utility
292 to print out received values.
295 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
296 between NIDs and the more common NIST names such as "P-256". Enhance
297 ecparam utility and ECC method to recognise the NIST names for curves.
300 *) Enhance SSL/TLS certificate chain handling to support different
301 chains for each certificate instead of one chain in the parent SSL_CTX.
304 *) Support for fixed DH ciphersuite client authentication: where both
305 server and client use DH certificates with common parameters.
308 *) Support for fixed DH ciphersuites: those requiring DH server
312 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
314 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
315 handshake can force the use of weak keying material in OpenSSL
316 SSL/TLS clients and servers.
318 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
319 researching this issue. (CVE-2014-0224)
320 [KIKUCHI Masashi, Steve Henson]
322 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
323 OpenSSL DTLS client the code can be made to recurse eventually crashing
326 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
328 [Imre Rad, Steve Henson]
330 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
331 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
332 client or server. This is potentially exploitable to run arbitrary
333 code on a vulnerable client or server.
335 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
336 [Jüri Aedla, Steve Henson]
338 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
339 are subject to a denial of service attack.
341 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
342 this issue. (CVE-2014-3470)
343 [Felix Gröbert, Ivan Fratric, Steve Henson]
345 *) Harmonize version and its documentation. -f flag is used to display
347 [mancha <mancha1@zoho.com>]
349 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
351 [mancha <mancha1@zoho.com>]
353 *) Fix some double frees. These are not thought to be exploitable.
354 [mancha <mancha1@zoho.com>]
356 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
358 *) A missing bounds check in the handling of the TLS heartbeat extension
359 can be used to reveal up to 64k of memory to a connected client or
362 Thanks for Neel Mehta of Google Security for discovering this bug and to
363 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
364 preparing the fix (CVE-2014-0160)
365 [Adam Langley, Bodo Moeller]
367 *) Fix for the attack described in the paper "Recovering OpenSSL
368 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
369 by Yuval Yarom and Naomi Benger. Details can be obtained from:
370 http://eprint.iacr.org/2014/140
372 Thanks to Yuval Yarom and Naomi Benger for discovering this
373 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
374 [Yuval Yarom and Naomi Benger]
376 *) TLS pad extension: draft-agl-tls-padding-03
378 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
379 TLS client Hello record length value would otherwise be > 255 and
380 less that 512 pad with a dummy extension containing zeroes so it
381 is at least 512 bytes long.
383 [Adam Langley, Steve Henson]
385 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
387 *) Fix for TLS record tampering bug. A carefully crafted invalid
388 handshake could crash OpenSSL with a NULL pointer exception.
389 Thanks to Anton Johansson for reporting this issues.
392 *) Keep original DTLS digest and encryption contexts in retransmission
393 structures so we can use the previous session parameters if they need
394 to be resent. (CVE-2013-6450)
397 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
398 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
399 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
400 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
401 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
402 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
403 [Rob Stradling, Adam Langley]
405 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
407 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
408 supporting platforms or when small records were transferred.
409 [Andy Polyakov, Steve Henson]
411 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
413 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
415 This addresses the flaw in CBC record processing discovered by
416 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
417 at: http://www.isg.rhul.ac.uk/tls/
419 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
420 Security Group at Royal Holloway, University of London
421 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
422 Emilia Käsper for the initial patch.
424 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
426 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
427 ciphersuites which can be exploited in a denial of service attack.
428 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
429 and detecting this bug and to Wolfgang Ettlinger
430 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
434 *) Return an error when checking OCSP signatures when key is NULL.
435 This fixes a DoS attack. (CVE-2013-0166)
438 *) Make openssl verify return errors.
439 [Chris Palmer <palmer@google.com> and Ben Laurie]
441 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
442 the right response is stapled. Also change SSL_get_certificate()
443 so it returns the certificate actually sent.
444 See http://rt.openssl.org/Ticket/Display.html?id=2836.
445 [Rob Stradling <rob.stradling@comodo.com>]
447 *) Fix possible deadlock when decoding public keys.
450 *) Don't use TLS 1.0 record version number in initial client hello
454 Changes between 1.0.1b and 1.0.1c [10 May 2012]
456 *) Sanity check record length before skipping explicit IV in TLS
457 1.2, 1.1 and DTLS to fix DoS attack.
459 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
460 fuzzing as a service testing platform.
464 *) Initialise tkeylen properly when encrypting CMS messages.
465 Thanks to Solar Designer of Openwall for reporting this issue.
468 *) In FIPS mode don't try to use composite ciphers as they are not
472 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
474 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
475 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
476 mean any application compiled against OpenSSL 1.0.0 headers setting
477 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
478 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
479 0x10000000L Any application which was previously compiled against
480 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
481 will need to be recompiled as a result. Letting be results in
482 inability to disable specifically TLS 1.1 and in client context,
483 in unlike event, limit maximum offered version to TLS 1.0 [see below].
486 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
487 disable just protocol X, but all protocols above X *if* there are
488 protocols *below* X still enabled. In more practical terms it means
489 that if application wants to disable TLS1.0 in favor of TLS1.1 and
490 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
491 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
495 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
497 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
498 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
499 in CRYPTO_realloc_clean.
501 Thanks to Tavis Ormandy, Google Security Team, for discovering this
502 issue and to Adam Langley <agl@chromium.org> for fixing it.
504 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
506 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
509 *) Workarounds for some broken servers that "hang" if a client hello
510 record length exceeds 255 bytes.
512 1. Do not use record version number > TLS 1.0 in initial client
513 hello: some (but not all) hanging servers will now work.
514 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
515 the number of ciphers sent in the client hello. This should be
516 set to an even number, such as 50, for example by passing:
517 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
518 Most broken servers should now work.
519 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
520 TLS 1.2 client support entirely.
523 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
526 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
528 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
529 STRING form instead of a DigestInfo.
532 *) The format used for MDC2 RSA signatures is inconsistent between EVP
533 and the RSA_sign/RSA_verify functions. This was made more apparent when
534 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
535 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
536 the correct format in RSA_verify so both forms transparently work.
539 *) Some servers which support TLS 1.0 can choke if we initially indicate
540 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
541 encrypted premaster secret. As a workaround use the maximum pemitted
542 client version in client hello, this should keep such servers happy
543 and still work with previous versions of OpenSSL.
546 *) Add support for TLS/DTLS heartbeats.
547 [Robin Seggelmann <seggelmann@fh-muenster.de>]
549 *) Add support for SCTP.
550 [Robin Seggelmann <seggelmann@fh-muenster.de>]
552 *) Improved PRNG seeding for VOS.
553 [Paul Green <Paul.Green@stratus.com>]
555 *) Extensive assembler packs updates, most notably:
557 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
558 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
559 - x86_64: bit-sliced AES implementation;
560 - ARM: NEON support, contemporary platforms optimizations;
561 - s390x: z196 support;
562 - *: GHASH and GF(2^m) multiplication implementations;
566 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
567 (removal of unnecessary code)
568 [Peter Sylvester <peter.sylvester@edelweb.fr>]
570 *) Add TLS key material exporter from RFC 5705.
573 *) Add DTLS-SRTP negotiation from RFC 5764.
576 *) Add Next Protocol Negotiation,
577 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
578 disabled with a no-npn flag to config or Configure. Code donated
580 [Adam Langley <agl@google.com> and Ben Laurie]
582 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
583 NIST-P256, NIST-P521, with constant-time single point multiplication on
584 typical inputs. Compiler support for the nonstandard type __uint128_t is
585 required to use this (present in gcc 4.4 and later, for 64-bit builds).
586 Code made available under Apache License version 2.0.
588 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
589 line to include this in your build of OpenSSL, and run "make depend" (or
590 "make update"). This enables the following EC_METHODs:
592 EC_GFp_nistp224_method()
593 EC_GFp_nistp256_method()
594 EC_GFp_nistp521_method()
596 EC_GROUP_new_by_curve_name() will automatically use these (while
597 EC_GROUP_new_curve_GFp() currently prefers the more flexible
599 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
601 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
602 all platforms. Move ssize_t definition from e_os.h to the public
603 header file e_os2.h as it now appears in public header file cms.h
606 *) New -sigopt option to the ca, req and x509 utilities. Additional
607 signature parameters can be passed using this option and in
611 *) Add RSA PSS signing function. This will generate and set the
612 appropriate AlgorithmIdentifiers for PSS based on those in the
613 corresponding EVP_MD_CTX structure. No application support yet.
616 *) Support for companion algorithm specific ASN1 signing routines.
617 New function ASN1_item_sign_ctx() signs a pre-initialised
618 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
619 the appropriate parameters.
622 *) Add new algorithm specific ASN1 verification initialisation function
623 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
624 handling will be the same no matter what EVP_PKEY_METHOD is used.
625 Add a PSS handler to support verification of PSS signatures: checked
626 against a number of sample certificates.
629 *) Add signature printing for PSS. Add PSS OIDs.
630 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
632 *) Add algorithm specific signature printing. An individual ASN1 method
633 can now print out signatures instead of the standard hex dump.
635 More complex signatures (e.g. PSS) can print out more meaningful
636 information. Include DSA version that prints out the signature
640 *) Password based recipient info support for CMS library: implementing
644 *) Split password based encryption into PBES2 and PBKDF2 functions. This
645 neatly separates the code into cipher and PBE sections and is required
646 for some algorithms that split PBES2 into separate pieces (such as
650 *) Session-handling fixes:
651 - Fix handling of connections that are resuming with a session ID,
652 but also support Session Tickets.
653 - Fix a bug that suppressed issuing of a new ticket if the client
654 presented a ticket with an expired session.
655 - Try to set the ticket lifetime hint to something reasonable.
656 - Make tickets shorter by excluding irrelevant information.
657 - On the client side, don't ignore renewed tickets.
658 [Adam Langley, Bodo Moeller (Google)]
660 *) Fix PSK session representation.
663 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
665 This work was sponsored by Intel.
668 *) Add GCM support to TLS library. Some custom code is needed to split
669 the IV between the fixed (from PRF) and explicit (from TLS record)
670 portions. This adds all GCM ciphersuites supported by RFC5288 and
671 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
672 add a special AESGCM string for GCM only.
675 *) Expand range of ctrls for AES GCM. Permit setting invocation
676 field on decrypt and retrieval of invocation field only on encrypt.
679 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
680 As required by RFC5289 these ciphersuites cannot be used if for
681 versions of TLS earlier than 1.2.
684 *) For FIPS capable OpenSSL interpret a NULL default public key method
685 as unset and return the appopriate default but do *not* set the default.
686 This means we can return the appopriate method in applications that
687 swicth between FIPS and non-FIPS modes.
690 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
691 ENGINE is used then we cannot handle that in the FIPS module so we
692 keep original code iff non-FIPS operations are allowed.
695 *) Add -attime option to openssl utilities.
696 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
698 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
701 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
702 FIPS EC methods unconditionally for now.
705 *) New build option no-ec2m to disable characteristic 2 code.
708 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
709 all cases can be covered as some introduce binary incompatibilities.
712 *) Redirect RSA operations to FIPS module including keygen,
713 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
716 *) Add similar low level API blocking to ciphers.
719 *) Low level digest APIs are not approved in FIPS mode: any attempt
720 to use these will cause a fatal error. Applications that *really* want
721 to use them can use the private_* version instead.
724 *) Redirect cipher operations to FIPS module for FIPS builds.
727 *) Redirect digest operations to FIPS module for FIPS builds.
730 *) Update build system to add "fips" flag which will link in fipscanister.o
731 for static and shared library builds embedding a signature if needed.
734 *) Output TLS supported curves in preference order instead of numerical
735 order. This is currently hardcoded for the highest order curves first.
736 This should be configurable so applications can judge speed vs strength.
739 *) Add TLS v1.2 server support for client authentication.
742 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
746 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
747 FIPS modules versions.
750 *) Add TLS v1.2 client side support for client authentication. Keep cache
751 of handshake records longer as we don't know the hash algorithm to use
752 until after the certificate request message is received.
755 *) Initial TLS v1.2 client support. Add a default signature algorithms
756 extension including all the algorithms we support. Parse new signature
757 format in client key exchange. Relax some ECC signing restrictions for
758 TLS v1.2 as indicated in RFC5246.
761 *) Add server support for TLS v1.2 signature algorithms extension. Switch
762 to new signature format when needed using client digest preference.
763 All server ciphersuites should now work correctly in TLS v1.2. No client
764 support yet and no support for client certificates.
767 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
768 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
769 ciphersuites. At present only RSA key exchange ciphersuites work with
770 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
771 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
772 and version checking.
775 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
776 with this defined it will not be affected by any changes to ssl internal
777 structures. Add several utility functions to allow openssl application
778 to work with OPENSSL_NO_SSL_INTERN defined.
782 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
784 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
787 *) Permit abbreviated handshakes when renegotiating using the function
788 SSL_renegotiate_abbreviated().
789 [Robin Seggelmann <seggelmann@fh-muenster.de>]
791 *) Add call to ENGINE_register_all_complete() to
792 ENGINE_load_builtin_engines(), so some implementations get used
793 automatically instead of needing explicit application support.
796 *) Add support for TLS key exporter as described in RFC5705.
797 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
799 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
800 a few changes are required:
802 Add SSL_OP_NO_TLSv1_1 flag.
804 Update version checking logic to handle version 1.1.
805 Add explicit IV handling (ported from DTLS code).
806 Add command line options to s_client/s_server.
809 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
811 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
813 This addresses the flaw in CBC record processing discovered by
814 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
815 at: http://www.isg.rhul.ac.uk/tls/
817 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
818 Security Group at Royal Holloway, University of London
819 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
820 Emilia Käsper for the initial patch.
822 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
824 *) Return an error when checking OCSP signatures when key is NULL.
825 This fixes a DoS attack. (CVE-2013-0166)
828 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
829 the right response is stapled. Also change SSL_get_certificate()
830 so it returns the certificate actually sent.
831 See http://rt.openssl.org/Ticket/Display.html?id=2836.
833 [Rob Stradling <rob.stradling@comodo.com>]
835 *) Fix possible deadlock when decoding public keys.
838 Changes between 1.0.0i and 1.0.0j [10 May 2012]
840 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
843 *) Sanity check record length before skipping explicit IV in DTLS
846 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
847 fuzzing as a service testing platform.
851 *) Initialise tkeylen properly when encrypting CMS messages.
852 Thanks to Solar Designer of Openwall for reporting this issue.
855 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
857 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
858 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
859 in CRYPTO_realloc_clean.
861 Thanks to Tavis Ormandy, Google Security Team, for discovering this
862 issue and to Adam Langley <agl@chromium.org> for fixing it.
864 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
866 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
868 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
869 in CMS and PKCS7 code. When RSA decryption fails use a random key for
870 content decryption and always return the same error. Note: this attack
871 needs on average 2^20 messages so it only affects automated senders. The
872 old behaviour can be reenabled in the CMS code by setting the
873 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
874 an MMA defence is not necessary.
875 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
876 this issue. (CVE-2012-0884)
879 *) Fix CVE-2011-4619: make sure we really are receiving a
880 client hello before rejecting multiple SGC restarts. Thanks to
881 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
884 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
886 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
887 Thanks to Antonio Martin, Enterprise Secure Access Research and
888 Development, Cisco Systems, Inc. for discovering this bug and
889 preparing a fix. (CVE-2012-0050)
892 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
894 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
895 of the Vaudenay padding oracle attack on CBC mode encryption
896 which enables an efficient plaintext recovery attack against
897 the OpenSSL implementation of DTLS. Their attack exploits timing
898 differences arising during decryption processing. A research
899 paper describing this attack can be found at:
900 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
901 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
902 Security Group at Royal Holloway, University of London
903 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
904 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
905 for preparing the fix. (CVE-2011-4108)
906 [Robin Seggelmann, Michael Tuexen]
908 *) Clear bytes used for block padding of SSL 3.0 records.
910 [Adam Langley (Google)]
912 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
913 Kadianakis <desnacked@gmail.com> for discovering this issue and
914 Adam Langley for preparing the fix. (CVE-2011-4619)
915 [Adam Langley (Google)]
917 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
918 [Andrey Kulikov <amdeich@gmail.com>]
920 *) Prevent malformed RFC3779 data triggering an assertion failure.
921 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
922 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
923 [Rob Austein <sra@hactrn.net>]
925 *) Improved PRNG seeding for VOS.
926 [Paul Green <Paul.Green@stratus.com>]
928 *) Fix ssl_ciph.c set-up race.
929 [Adam Langley (Google)]
931 *) Fix spurious failures in ecdsatest.c.
932 [Emilia Käsper (Google)]
934 *) Fix the BIO_f_buffer() implementation (which was mixing different
935 interpretations of the '..._len' fields).
936 [Adam Langley (Google)]
938 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
939 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
940 threads won't reuse the same blinding coefficients.
942 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
943 lock to call BN_BLINDING_invert_ex, and avoids one use of
944 BN_BLINDING_update for each BN_BLINDING structure (previously,
945 the last update always remained unused).
946 [Emilia Käsper (Google)]
948 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
949 [Bob Buckholz (Google)]
951 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
953 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
954 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
955 [Kaspar Brand <ossl@velox.ch>]
957 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
958 for multi-threaded use of ECDH. (CVE-2011-3210)
959 [Adam Langley (Google)]
961 *) Fix x509_name_ex_d2i memory leak on bad inputs.
964 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
965 signature public key algorithm by using OID xref utilities instead.
966 Before this you could only use some ECC ciphersuites with SHA1 only.
969 *) Add protection against ECDSA timing attacks as mentioned in the paper
970 by Billy Bob Brumley and Nicola Tuveri, see:
972 http://eprint.iacr.org/2011/232.pdf
974 [Billy Bob Brumley and Nicola Tuveri]
976 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
978 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
979 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
981 *) Fix bug in string printing code: if *any* escaping is enabled we must
982 escape the escape character (backslash) or the resulting string is
986 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
988 *) Disable code workaround for ancient and obsolete Netscape browsers
989 and servers: an attacker can use it in a ciphersuite downgrade attack.
990 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
993 *) Fixed J-PAKE implementation error, originally discovered by
994 Sebastien Martini, further info and confirmation from Stefan
995 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
998 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1000 *) Fix extension code to avoid race conditions which can result in a buffer
1001 overrun vulnerability: resumed sessions must not be modified as they can
1002 be shared by multiple threads. CVE-2010-3864
1005 *) Fix WIN32 build system to correctly link an ENGINE directory into
1009 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1011 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1013 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1015 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1017 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1018 context. The operation can be customised via the ctrl mechanism in
1019 case ENGINEs want to include additional functionality.
1022 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1025 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1026 output hashes compatible with older versions of OpenSSL.
1027 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1029 *) Fix compression algorithm handling: if resuming a session use the
1030 compression algorithm of the resumed session instead of determining
1031 it from client hello again. Don't allow server to change algorithm.
1034 *) Add load_crls() function to apps tidying load_certs() too. Add option
1035 to verify utility to allow additional CRLs to be included.
1038 *) Update OCSP request code to permit adding custom headers to the request:
1039 some responders need this.
1042 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1044 [Julia Lawall <julia@diku.dk>]
1046 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1047 needlessly dereferenced structures, used obsolete functions and
1048 didn't handle all updated verify codes correctly.
1051 *) Disable MD2 in the default configuration.
1054 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1055 indicate the initial BIO being pushed or popped. This makes it possible
1056 to determine whether the BIO is the one explicitly called or as a result
1057 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1058 it handles reference counts correctly and doesn't zero out the I/O bio
1059 when it is not being explicitly popped. WARNING: applications which
1060 included workarounds for the old buggy behaviour will need to be modified
1061 or they could free up already freed BIOs.
1064 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1065 renaming to all platforms (within the 0.9.8 branch, this was
1066 done conditionally on Netware platforms to avoid a name clash).
1067 [Guenter <lists@gknw.net>]
1069 *) Add ECDHE and PSK support to DTLS.
1070 [Michael Tuexen <tuexen@fh-muenster.de>]
1072 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1076 *) Add "missing" function EVP_MD_flags() (without this the only way to
1077 retrieve a digest flags is by accessing the structure directly. Update
1078 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1079 or cipher is registered as in the "from" argument. Print out all
1080 registered digests in the dgst usage message instead of manually
1081 attempting to work them out.
1084 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1085 this allows the use of compression and extensions. Change default cipher
1086 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1087 by default unless an application cipher string requests it.
1090 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1091 key ids to find matching certificates and keys but some PKCS#12 files
1092 don't follow the (somewhat unwritten) rules and this strategy fails.
1093 Now just gather all certificates together and the first private key
1094 then look for the first certificate that matches the key.
1097 *) Support use of registered digest and cipher names for dgst and cipher
1098 commands instead of having to add each one as a special case. So now
1105 openssl dgst -sha256 foo
1107 and this works for ENGINE based algorithms too.
1111 *) Update Gost ENGINE to support parameter files.
1112 [Victor B. Wagner <vitus@cryptocom.ru>]
1114 *) Support GeneralizedTime in ca utility.
1115 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1117 *) Enhance the hash format used for certificate directory links. The new
1118 form uses the canonical encoding (meaning equivalent names will work
1119 even if they aren't identical) and uses SHA1 instead of MD5. This form
1120 is incompatible with the older format and as a result c_rehash should
1121 be used to rebuild symbolic links.
1124 *) Make PKCS#8 the default write format for private keys, replacing the
1125 traditional format. This form is standardised, more secure and doesn't
1126 include an implicit MD5 dependency.
1129 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1130 committed to OpenSSL should pass this lot as a minimum.
1133 *) Add session ticket override functionality for use by EAP-FAST.
1134 [Jouni Malinen <j@w1.fi>]
1136 *) Modify HMAC functions to return a value. Since these can be implemented
1137 in an ENGINE errors can occur.
1140 *) Type-checked OBJ_bsearch_ex.
1143 *) Type-checked OBJ_bsearch. Also some constification necessitated
1144 by type-checking. Still to come: TXT_DB, bsearch(?),
1145 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1149 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1150 seconds to a tm structure directly, instead of going through OS
1151 specific date routines. This avoids any issues with OS routines such
1152 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1153 and X509_time_adj_ex() to cover the extended range. The existing
1154 X509_time_adj() is still usable and will no longer have any date issues.
1157 *) Delta CRL support. New use deltas option which will attempt to locate
1158 and search any appropriate delta CRLs available.
1160 This work was sponsored by Google.
1163 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1164 code and add additional score elements. Validate alternate CRL paths
1165 as part of the CRL checking and indicate a new error "CRL path validation
1166 error" in this case. Applications wanting additional details can use
1167 the verify callback and check the new "parent" field. If this is not
1168 NULL CRL path validation is taking place. Existing applications wont
1169 see this because it requires extended CRL support which is off by
1172 This work was sponsored by Google.
1175 *) Support for freshest CRL extension.
1177 This work was sponsored by Google.
1180 *) Initial indirect CRL support. Currently only supported in the CRLs
1181 passed directly and not via lookup. Process certificate issuer
1182 CRL entry extension and lookup CRL entries by bother issuer name
1183 and serial number. Check and process CRL issuer entry in IDP extension.
1185 This work was sponsored by Google.
1188 *) Add support for distinct certificate and CRL paths. The CRL issuer
1189 certificate is validated separately in this case. Only enabled if
1190 an extended CRL support flag is set: this flag will enable additional
1191 CRL functionality in future.
1193 This work was sponsored by Google.
1196 *) Add support for policy mappings extension.
1198 This work was sponsored by Google.
1201 *) Fixes to pathlength constraint, self issued certificate handling,
1202 policy processing to align with RFC3280 and PKITS tests.
1204 This work was sponsored by Google.
1207 *) Support for name constraints certificate extension. DN, email, DNS
1208 and URI types are currently supported.
1210 This work was sponsored by Google.
1213 *) To cater for systems that provide a pointer-based thread ID rather
1214 than numeric, deprecate the current numeric thread ID mechanism and
1215 replace it with a structure and associated callback type. This
1216 mechanism allows a numeric "hash" to be extracted from a thread ID in
1217 either case, and on platforms where pointers are larger than 'long',
1218 mixing is done to help ensure the numeric 'hash' is usable even if it
1219 can't be guaranteed unique. The default mechanism is to use "&errno"
1220 as a pointer-based thread ID to distinguish between threads.
1222 Applications that want to provide their own thread IDs should now use
1223 CRYPTO_THREADID_set_callback() to register a callback that will call
1224 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1226 Note that ERR_remove_state() is now deprecated, because it is tied
1227 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1228 to free the current thread's error state should be replaced by
1229 ERR_remove_thread_state(NULL).
1231 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1232 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1233 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1234 application was previously providing a numeric thread callback that
1235 was inappropriate for distinguishing threads, then uniqueness might
1236 have been obtained with &errno that happened immediately in the
1237 intermediate development versions of OpenSSL; this is no longer the
1238 case, the numeric thread callback will now override the automatic use
1240 [Geoff Thorpe, with help from Bodo Moeller]
1242 *) Initial support for different CRL issuing certificates. This covers a
1243 simple case where the self issued certificates in the chain exist and
1244 the real CRL issuer is higher in the existing chain.
1246 This work was sponsored by Google.
1249 *) Removed effectively defunct crypto/store from the build.
1252 *) Revamp of STACK to provide stronger type-checking. Still to come:
1253 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1254 ASN1_STRING, CONF_VALUE.
1257 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1258 RAM on SSL connections. This option can save about 34k per idle SSL.
1261 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1262 STACK, TXT_DB, bsearch, qsort.
1265 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1266 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1267 support for data, signedData, compressedData, digestedData and
1268 encryptedData, envelopedData types included. Scripts to check against
1269 RFC4134 examples draft and interop and consistency checks of many
1270 content types and variants.
1273 *) Add options to enc utility to support use of zlib compression BIO.
1276 *) Extend mk1mf to support importing of options and assembly language
1277 files from Configure script, currently only included in VC-WIN32.
1278 The assembly language rules can now optionally generate the source
1279 files from the associated perl scripts.
1282 *) Implement remaining functionality needed to support GOST ciphersuites.
1283 Interop testing has been performed using CryptoPro implementations.
1284 [Victor B. Wagner <vitus@cryptocom.ru>]
1286 *) s390x assembler pack.
1289 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1293 *) Implement Opaque PRF Input TLS extension as specified in
1294 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1295 official specification yet and no extension type assignment by
1296 IANA exists, this extension (for now) will have to be explicitly
1297 enabled when building OpenSSL by providing the extension number
1298 to use. For example, specify an option
1300 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1302 to the "config" or "Configure" script to enable the extension,
1303 assuming extension number 0x9527 (which is a completely arbitrary
1304 and unofficial assignment based on the MD5 hash of the Internet
1305 Draft). Note that by doing so, you potentially lose
1306 interoperability with other TLS implementations since these might
1307 be using the same extension number for other purposes.
1309 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1310 opaque PRF input value to use in the handshake. This will create
1311 an interal copy of the length-'len' string at 'src', and will
1312 return non-zero for success.
1314 To get more control and flexibility, provide a callback function
1317 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1318 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1322 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1325 Callback function 'cb' will be called in handshakes, and is
1326 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1327 Argument 'arg' is for application purposes (the value as given to
1328 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1329 be provided to the callback function). The callback function
1330 has to return non-zero to report success: usually 1 to use opaque
1331 PRF input just if possible, or 2 to enforce use of the opaque PRF
1332 input. In the latter case, the library will abort the handshake
1333 if opaque PRF input is not successfully negotiated.
1335 Arguments 'peerinput' and 'len' given to the callback function
1336 will always be NULL and 0 in the case of a client. A server will
1337 see the client's opaque PRF input through these variables if
1338 available (NULL and 0 otherwise). Note that if the server
1339 provides an opaque PRF input, the length must be the same as the
1340 length of the client's opaque PRF input.
1342 Note that the callback function will only be called when creating
1343 a new session (session resumption can resume whatever was
1344 previously negotiated), and will not be called in SSL 2.0
1345 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1346 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1347 for applications that need to enforce opaque PRF input.
1351 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1354 [Victor B. Wagner <vitus@cryptocom.ru>]
1356 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1357 RFC4507bis. The encrypted ticket format is an encrypted encoded
1358 SSL_SESSION structure, that way new session features are automatically
1361 If a client application caches session in an SSL_SESSION structure
1362 support is transparent because tickets are now stored in the encoded
1365 The SSL_CTX structure automatically generates keys for ticket
1366 protection in servers so again support should be possible
1367 with no application modification.
1369 If a client or server wishes to disable RFC4507 support then the option
1370 SSL_OP_NO_TICKET can be set.
1372 Add a TLS extension debugging callback to allow the contents of any client
1373 or server extensions to be examined.
1375 This work was sponsored by Google.
1378 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1379 OpenSSL should now compile cleanly on gcc 4.2
1380 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1382 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1383 support including streaming MAC support: this is required for GOST
1384 ciphersuite support.
1385 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1387 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1388 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1389 to output in BER and PEM format.
1392 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1393 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1394 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1395 ENGINE support for HMAC keys which are unextractable. New -mac and
1396 -macopt options to dgst utility.
1399 *) New option -sigopt to dgst utility. Update dgst to use
1400 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1401 alternative signing paramaters such as X9.31 or PSS in the dgst
1405 *) Change ssl_cipher_apply_rule(), the internal function that does
1406 the work each time a ciphersuite string requests enabling
1407 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1408 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1409 the order of disabled ciphersuites such that those ciphersuites
1410 that most recently went from enabled to disabled not only stay
1411 in order with respect to each other, but also have higher priority
1412 than other disabled ciphersuites the next time ciphersuites are
1415 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1416 the same ciphersuites as with "HIGH" alone, but in a specific
1417 order where the PSK ciphersuites come first (since they are the
1418 most recently disabled ciphersuites when "HIGH" is parsed).
1420 Also, change ssl_create_cipher_list() (using this new
1421 funcionality) such that between otherwise identical
1422 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1426 *) Change ssl_create_cipher_list() so that it automatically
1427 arranges the ciphersuites in reasonable order before starting
1428 to process the rule string. Thus, the definition for "DEFAULT"
1429 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1430 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1431 This makes it much easier to arrive at a reasonable default order
1432 in applications for which anonymous ciphers are OK (meaning
1433 that you can't actually use DEFAULT).
1434 [Bodo Moeller; suggested by Victor Duchovni]
1436 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1437 processing) into multiple integers instead of setting
1438 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1439 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1440 (These masks as well as the individual bit definitions are hidden
1441 away into the non-exported interface ssl/ssl_locl.h, so this
1442 change to the definition of the SSL_CIPHER structure shouldn't
1443 affect applications.) This give us more bits for each of these
1444 categories, so there is no longer a need to coagulate AES128 and
1445 AES256 into a single algorithm bit, and to coagulate Camellia128
1446 and Camellia256 into a single algorithm bit, which has led to all
1449 Thus, among other things, the kludge introduced in 0.9.7m and
1450 0.9.8e for masking out AES256 independently of AES128 or masking
1451 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1453 With the change, we also introduce new ciphersuite aliases that
1454 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1458 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1459 Use the leftmost N bytes of the signature input if the input is
1460 larger than the prime q (with N being the size in bytes of q).
1463 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1464 it yet and it is largely untested.
1467 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1470 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1471 some compilers (gcc 4.2 and later) reject their use. Safestack is
1472 reimplemented. Update ASN1 to avoid use of legacy functions.
1475 *) Win32/64 targets are linked with Winsock2.
1478 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1479 to external functions. This can be used to increase CRL handling
1480 efficiency especially when CRLs are very large by (for example) storing
1481 the CRL revoked certificates in a database.
1484 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1485 new CRLs added to a directory can be used. New command line option
1486 -verify_return_error to s_client and s_server. This causes real errors
1487 to be returned by the verify callback instead of carrying on no matter
1488 what. This reflects the way a "real world" verify callback would behave.
1491 *) GOST engine, supporting several GOST algorithms and public key formats.
1492 Kindly donated by Cryptocom.
1495 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1496 partitioned by DP are handled but no indirect CRL or reason partitioning
1497 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1498 selected via a scoring technique which handles IDP and AKID in CRLs.
1501 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1502 will ultimately be used for all verify operations: this will remove the
1503 X509_STORE dependency on certificate verification and allow alternative
1504 lookup methods. X509_STORE based implementations of these two callbacks.
1507 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1508 Modify get_crl() to find a valid (unexpired) CRL if possible.
1511 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1512 this would be called X509_CRL_cmp() but that name is already used by
1513 a function that just compares CRL issuer names. Cache several CRL
1514 extensions in X509_CRL structure and cache CRLDP in X509.
1517 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1518 this maps equivalent X509_NAME structures into a consistent structure.
1519 Name comparison can then be performed rapidly using memcmp().
1522 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1526 *) Allow digests to supply their own micalg string for S/MIME type using
1527 the ctrl EVP_MD_CTRL_MICALG.
1530 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1531 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1532 ctrl. It can then customise the structure before and/or after signing
1536 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1537 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1538 to free up any added signature OIDs.
1541 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1542 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1543 digest and cipher tables. New options added to openssl utility:
1544 list-message-digest-algorithms and list-cipher-algorithms.
1547 *) Change the array representation of binary polynomials: the list
1548 of degrees of non-zero coefficients is now terminated with -1.
1549 Previously it was terminated with 0, which was also part of the
1550 value; thus, the array representation was not applicable to
1551 polynomials where t^0 has coefficient zero. This change makes
1552 the array representation useful in a more general context.
1555 *) Various modifications and fixes to SSL/TLS cipher string
1556 handling. For ECC, the code now distinguishes between fixed ECDH
1557 with RSA certificates on the one hand and with ECDSA certificates
1558 on the other hand, since these are separate ciphersuites. The
1559 unused code for Fortezza ciphersuites has been removed.
1561 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1562 (not "ECDHE"). For consistency with the code for DH
1563 certificates, use of ECDH certificates is now considered ECDH
1564 authentication, not RSA or ECDSA authentication (the latter is
1565 merely the CA's signing algorithm and not actively used in the
1568 The temporary ciphersuite alias "ECCdraft" is no longer
1569 available, and ECC ciphersuites are no longer excluded from "ALL"
1570 and "DEFAULT". The following aliases now exist for RFC 4492
1571 ciphersuites, most of these by analogy with the DH case:
1573 kECDHr - ECDH cert, signed with RSA
1574 kECDHe - ECDH cert, signed with ECDSA
1575 kECDH - ECDH cert (signed with either RSA or ECDSA)
1576 kEECDH - ephemeral ECDH
1577 ECDH - ECDH cert or ephemeral ECDH
1583 AECDH - anonymous ECDH
1584 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1588 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1589 Use correct micalg parameters depending on digest(s) in signed message.
1592 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1593 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1596 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1597 an engine to register a method. Add ENGINE lookups for methods and
1598 functional reference processing.
1601 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1602 EVP_{Sign,Verify}* which allow an application to customise the signature
1606 *) New -resign option to smime utility. This adds one or more signers
1607 to an existing PKCS#7 signedData structure. Also -md option to use an
1608 alternative message digest algorithm for signing.
1611 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1612 create PKCS7 structures containing multiple signers. Update smime
1613 application to support multiple signers.
1616 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1620 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1621 Reorganize PBE internals to lookup from a static table using NIDs,
1622 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1623 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1624 PRF which will be automatically used with PBES2.
1627 *) Replace the algorithm specific calls to generate keys in "req" with the
1631 *) Update PKCS#7 enveloped data routines to use new API. This is now
1632 supported by any public key method supporting the encrypt operation. A
1633 ctrl is added to allow the public key algorithm to examine or modify
1634 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1638 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1639 a default digest type to use. In most cases this will be SHA1 but some
1640 algorithms (such as GOST) need to specify an alternative digest. The
1641 return value indicates how strong the prefernce is 1 means optional and
1642 2 is mandatory (that is it is the only supported type). Modify
1643 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1644 use the default md. Update openssl utilities to use the default digest
1645 type for signing if it is not explicitly indicated.
1648 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1649 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1650 signing method from the key type. This effectively removes the link
1651 between digests and public key types.
1654 *) Add an OID cross reference table and utility functions. Its purpose is to
1655 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1656 rsaEncryption. This will allow some of the algorithm specific hackery
1657 needed to use the correct OID to be removed.
1660 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1661 structures for PKCS7_sign(). They are now set up by the relevant public
1665 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1668 *) Add support for key derivation (agreement) in the API, DH method and
1672 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1673 public and private key formats. As a side effect these add additional
1674 command line functionality not previously available: DSA signatures can be
1675 generated and verified using pkeyutl and DH key support and generation in
1680 [Oliver Tappe <zooey@hirschkaefer.de>]
1682 *) New make target "install_html_docs" installs HTML renditions of the
1684 [Oliver Tappe <zooey@hirschkaefer.de>]
1686 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1687 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1688 support key and parameter generation and add initial key generation
1689 functionality for RSA.
1692 *) Add functions for main EVP_PKEY_method operations. The undocumented
1693 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1694 EVP_PKEY_{encrypt,decrypt}_old.
1697 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1698 key API, doesn't do much yet.
1701 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1702 public key algorithms. New option to openssl utility:
1703 "list-public-key-algorithms" to print out info.
1706 *) Implement the Supported Elliptic Curves Extension for
1707 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1710 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1711 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1714 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1715 utilities such as rsa, dsa, dsaparam etc except they process any key
1719 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1720 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1721 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1725 *) Initial support for pluggable public key ASN1.
1726 De-spaghettify the public key ASN1 handling. Move public and private
1727 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1728 algorithm specific handling to a single module within the relevant
1729 algorithm directory. Add functions to allow (near) opaque processing
1730 of public and private key structures.
1733 *) Implement the Supported Point Formats Extension for
1734 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1737 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1738 for the psk identity [hint] and the psk callback functions to the
1739 SSL_SESSION, SSL and SSL_CTX structure.
1742 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1746 SSL_CTX_use_psk_identity_hint
1747 SSL_get_psk_identity_hint
1748 SSL_get_psk_identity
1749 SSL_use_psk_identity_hint
1751 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1753 *) Add RFC 3161 compliant time stamp request creation, response generation
1754 and response verification functionality.
1755 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1757 *) Add initial support for TLS extensions, specifically for the server_name
1758 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1759 have new members for a host name. The SSL data structure has an
1760 additional member SSL_CTX *initial_ctx so that new sessions can be
1761 stored in that context to allow for session resumption, even after the
1762 SSL has been switched to a new SSL_CTX in reaction to a client's
1763 server_name extension.
1765 New functions (subject to change):
1767 SSL_get_servername()
1768 SSL_get_servername_type()
1771 New CTRL codes and macros (subject to change):
1773 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1774 - SSL_CTX_set_tlsext_servername_callback()
1775 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1776 - SSL_CTX_set_tlsext_servername_arg()
1777 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1779 openssl s_client has a new '-servername ...' option.
1781 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1782 '-key2 ...', '-servername_fatal' (subject to change). This allows
1783 testing the HostName extension for a specific single host name ('-cert'
1784 and '-key' remain fallbacks for handshakes without HostName
1785 negotiation). If the unrecogninzed_name alert has to be sent, this by
1786 default is a warning; it becomes fatal with the '-servername_fatal'
1789 [Peter Sylvester, Remy Allais, Christophe Renou]
1791 *) Whirlpool hash implementation is added.
1794 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1795 bn(64,32). Because of instruction set limitations it doesn't have
1796 any negative impact on performance. This was done mostly in order
1797 to make it possible to share assembler modules, such as bn_mul_mont
1798 implementations, between 32- and 64-bit builds without hassle.
1801 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1802 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1806 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1807 dedicated Montgomery multiplication procedure, is introduced.
1808 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1809 "64-bit" performance on certain 32-bit targets.
1812 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1813 in SSL structures. New SSL ctrl to set maximum send fragment size.
1814 Save memory by seeting the I/O buffer sizes dynamically instead of
1815 using the maximum available value.
1818 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1819 in addition to the text details.
1822 *) Very, very preliminary EXPERIMENTAL support for printing of general
1823 ASN1 structures. This currently produces rather ugly output and doesn't
1824 handle several customised structures at all.
1827 *) Integrated support for PVK file format and some related formats such
1828 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1829 these in the 'rsa' and 'dsa' utilities.
1832 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1835 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1836 place for the (very old) "NETSCAPE" format certificates which are now
1837 handled using new ASN1 code equivalents.
1840 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1841 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1842 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1845 *) Modify CRL distribution points extension code to print out previously
1846 unsupported fields. Enhance extension setting code to allow setting of
1850 *) Add print and set support for Issuing Distribution Point CRL extension.
1853 *) Change 'Configure' script to enable Camellia by default.
1856 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
1858 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1860 This addresses the flaw in CBC record processing discovered by
1861 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1862 at: http://www.isg.rhul.ac.uk/tls/
1864 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1865 Security Group at Royal Holloway, University of London
1866 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1867 Emilia Käsper for the initial patch.
1869 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1871 *) Return an error when checking OCSP signatures when key is NULL.
1872 This fixes a DoS attack. (CVE-2013-0166)
1875 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1876 the right response is stapled. Also change SSL_get_certificate()
1877 so it returns the certificate actually sent.
1878 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1879 (This is a backport)
1880 [Rob Stradling <rob.stradling@comodo.com>]
1882 *) Fix possible deadlock when decoding public keys.
1885 Changes between 0.9.8w and 0.9.8x [10 May 2012]
1887 *) Sanity check record length before skipping explicit IV in DTLS
1890 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1891 fuzzing as a service testing platform.
1895 *) Initialise tkeylen properly when encrypting CMS messages.
1896 Thanks to Solar Designer of Openwall for reporting this issue.
1899 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
1901 *) The fix for CVE-2012-2110 did not take into account that the
1902 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
1903 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
1904 rejecting negative len parameter. (CVE-2012-2131)
1905 [Tomas Hoger <thoger@redhat.com>]
1907 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
1909 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1910 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1911 in CRYPTO_realloc_clean.
1913 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1914 issue and to Adam Langley <agl@chromium.org> for fixing it.
1916 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1918 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
1920 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1921 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1922 content decryption and always return the same error. Note: this attack
1923 needs on average 2^20 messages so it only affects automated senders. The
1924 old behaviour can be reenabled in the CMS code by setting the
1925 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1926 an MMA defence is not necessary.
1927 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1928 this issue. (CVE-2012-0884)
1931 *) Fix CVE-2011-4619: make sure we really are receiving a
1932 client hello before rejecting multiple SGC restarts. Thanks to
1933 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1936 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1938 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1939 Thanks to Antonio Martin, Enterprise Secure Access Research and
1940 Development, Cisco Systems, Inc. for discovering this bug and
1941 preparing a fix. (CVE-2012-0050)
1944 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1946 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1947 of the Vaudenay padding oracle attack on CBC mode encryption
1948 which enables an efficient plaintext recovery attack against
1949 the OpenSSL implementation of DTLS. Their attack exploits timing
1950 differences arising during decryption processing. A research
1951 paper describing this attack can be found at:
1952 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1953 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1954 Security Group at Royal Holloway, University of London
1955 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1956 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1957 for preparing the fix. (CVE-2011-4108)
1958 [Robin Seggelmann, Michael Tuexen]
1960 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1961 [Ben Laurie, Kasper <ekasper@google.com>]
1963 *) Clear bytes used for block padding of SSL 3.0 records.
1965 [Adam Langley (Google)]
1967 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1968 Kadianakis <desnacked@gmail.com> for discovering this issue and
1969 Adam Langley for preparing the fix. (CVE-2011-4619)
1970 [Adam Langley (Google)]
1972 *) Prevent malformed RFC3779 data triggering an assertion failure.
1973 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1974 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1975 [Rob Austein <sra@hactrn.net>]
1977 *) Fix ssl_ciph.c set-up race.
1978 [Adam Langley (Google)]
1980 *) Fix spurious failures in ecdsatest.c.
1981 [Emilia Käsper (Google)]
1983 *) Fix the BIO_f_buffer() implementation (which was mixing different
1984 interpretations of the '..._len' fields).
1985 [Adam Langley (Google)]
1987 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1988 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1989 threads won't reuse the same blinding coefficients.
1991 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1992 lock to call BN_BLINDING_invert_ex, and avoids one use of
1993 BN_BLINDING_update for each BN_BLINDING structure (previously,
1994 the last update always remained unused).
1995 [Emilia Käsper (Google)]
1997 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1998 for multi-threaded use of ECDH.
1999 [Adam Langley (Google)]
2001 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2004 *) Add protection against ECDSA timing attacks as mentioned in the paper
2005 by Billy Bob Brumley and Nicola Tuveri, see:
2007 http://eprint.iacr.org/2011/232.pdf
2009 [Billy Bob Brumley and Nicola Tuveri]
2011 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2013 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2014 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2016 *) Fix bug in string printing code: if *any* escaping is enabled we must
2017 escape the escape character (backslash) or the resulting string is
2021 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2023 *) Disable code workaround for ancient and obsolete Netscape browsers
2024 and servers: an attacker can use it in a ciphersuite downgrade attack.
2025 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2028 *) Fixed J-PAKE implementation error, originally discovered by
2029 Sebastien Martini, further info and confirmation from Stefan
2030 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2033 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2035 *) Fix extension code to avoid race conditions which can result in a buffer
2036 overrun vulnerability: resumed sessions must not be modified as they can
2037 be shared by multiple threads. CVE-2010-3864
2040 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2043 *) Don't reencode certificate when calculating signature: cache and use
2044 the original encoding instead. This makes signature verification of
2045 some broken encodings work correctly.
2048 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2049 is also one of the inputs.
2050 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2052 *) Don't repeatedly append PBE algorithms to table if they already exist.
2053 Sort table on each new add. This effectively makes the table read only
2054 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2058 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2060 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2063 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2064 access or freeing data twice (CVE-2010-0742)
2065 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2067 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2068 common in certificates and some applications which only call
2069 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2073 Reduce copying into .apps and .test in makevms.com
2074 Don't try to use blank CA certificate in CA.com
2075 Allow use of C files from original directories in maketests.com
2076 [Steven M. Schweda" <sms@antinode.info>]
2078 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2080 *) When rejecting SSL/TLS records due to an incorrect version number, never
2081 update s->server with a new major version number. As of
2082 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2083 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2084 the previous behavior could result in a read attempt at NULL when
2085 receiving specific incorrect SSL/TLS records once record payload
2086 protection is active. (CVE-2010-0740)
2087 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2089 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2090 could be crashed if the relevant tables were not present (e.g. chrooted).
2091 [Tomas Hoger <thoger@redhat.com>]
2093 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2095 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2096 [Martin Olsson, Neel Mehta]
2098 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2099 accommodate for stack sorting, always a write lock!).
2102 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2103 excessive delays in the RAND_poll(): over a minute. As a workaround
2104 include a time check in the inner Heap32Next loop too.
2107 *) The code that handled flushing of data in SSL/TLS originally used the
2108 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2109 the problem outlined in PR#1949. The fix suggested there however can
2110 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2111 of Apache). So instead simplify the code to flush unconditionally.
2112 This should be fine since flushing with no data to flush is a no op.
2115 *) Handle TLS versions 2.0 and later properly and correctly use the
2116 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2117 off ancient servers have a habit of sticking around for a while...
2120 *) Modify compression code so it frees up structures without using the
2121 ex_data callbacks. This works around a problem where some applications
2122 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2123 restarting) then use compression (e.g. SSL with compression) later.
2124 This results in significant per-connection memory leaks and
2125 has caused some security issues including CVE-2008-1678 and
2129 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2130 change when encrypting or decrypting.
2133 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2134 connect and renegotiate with servers which do not support RI.
2135 Until RI is more widely deployed this option is enabled by default.
2138 *) Add "missing" ssl ctrls to clear options and mode.
2141 *) If client attempts to renegotiate and doesn't support RI respond with
2142 a no_renegotiation alert as required by RFC5746. Some renegotiating
2143 TLS clients will continue a connection gracefully when they receive
2144 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2145 waiting for a server hello which it will never receive. Now we treat a
2146 received no_renegotiation alert as a fatal error. This is because
2147 applications requesting a renegotiation might well expect it to succeed
2148 and would have no code in place to handle the server denying it so the
2149 only safe thing to do is to terminate the connection.
2152 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2153 peer supports secure renegotiation and 0 otherwise. Print out peer
2154 renegotiation support in s_client/s_server.
2157 *) Replace the highly broken and deprecated SPKAC certification method with
2158 the updated NID creation version. This should correctly handle UTF8.
2161 *) Implement RFC5746. Re-enable renegotiation but require the extension
2162 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2163 turns out to be a bad idea. It has been replaced by
2164 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2165 SSL_CTX_set_options(). This is really not recommended unless you
2166 know what you are doing.
2167 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2169 *) Fixes to stateless session resumption handling. Use initial_ctx when
2170 issuing and attempting to decrypt tickets in case it has changed during
2171 servername handling. Use a non-zero length session ID when attempting
2172 stateless session resumption: this makes it possible to determine if
2173 a resumption has occurred immediately after receiving server hello
2174 (several places in OpenSSL subtly assume this) instead of later in
2178 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2179 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2180 fixes for a few places where the return code is not checked
2182 [Julia Lawall <julia@diku.dk>]
2184 *) Add --strict-warnings option to Configure script to include devteam
2185 warnings in other configurations.
2188 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2189 makes it possible to install openssl libraries in locations which
2190 have names other than "lib", for example "/usr/lib64" which some
2192 [Steve Henson, based on patch from Jeremy Utley]
2194 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2195 X690 8.9.12 and can produce some misleading textual output of OIDs.
2196 [Steve Henson, reported by Dan Kaminsky]
2198 *) Delete MD2 from algorithm tables. This follows the recommendation in
2199 several standards that it is not used in new applications due to
2200 several cryptographic weaknesses. For binary compatibility reasons
2201 the MD2 API is still compiled in by default.
2204 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2208 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2209 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2211 [Guenter <lists@gknw.net>]
2213 *) Fix the server certificate chain building code to use X509_verify_cert(),
2214 it used to have an ad-hoc builder which was unable to cope with anything
2215 other than a simple chain.
2216 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2218 *) Don't check self signed certificate signatures in X509_verify_cert()
2219 by default (a flag can override this): it just wastes time without
2220 adding any security. As a useful side effect self signed root CAs
2221 with non-FIPS digests are now usable in FIPS mode.
2224 *) In dtls1_process_out_of_seq_message() the check if the current message
2225 is already buffered was missing. For every new message was memory
2226 allocated, allowing an attacker to perform an denial of service attack
2227 with sending out of seq handshake messages until there is no memory
2228 left. Additionally every future messege was buffered, even if the
2229 sequence number made no sense and would be part of another handshake.
2230 So only messages with sequence numbers less than 10 in advance will be
2231 buffered. (CVE-2009-1378)
2232 [Robin Seggelmann, discovered by Daniel Mentz]
2234 *) Records are buffered if they arrive with a future epoch to be
2235 processed after finishing the corresponding handshake. There is
2236 currently no limitation to this buffer allowing an attacker to perform
2237 a DOS attack with sending records with future epochs until there is no
2238 memory left. This patch adds the pqueue_size() function to detemine
2239 the size of a buffer and limits the record buffer to 100 entries.
2241 [Robin Seggelmann, discovered by Daniel Mentz]
2243 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2244 parent structure is freed. (CVE-2009-1379)
2247 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2248 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2251 [Ilya O. <vrghost@gmail.com>]
2253 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2255 *) Disable renegotiation completely - this fixes a severe security
2256 problem (CVE-2009-3555) at the cost of breaking all
2257 renegotiation. Renegotiation can be re-enabled by setting
2258 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2259 run-time. This is really not recommended unless you know what
2263 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2265 *) Don't set val to NULL when freeing up structures, it is freed up by
2266 underlying code. If sizeof(void *) > sizeof(long) this can result in
2267 zeroing past the valid field. (CVE-2009-0789)
2268 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2270 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2271 checked correctly. This would allow some invalid signed attributes to
2272 appear to verify correctly. (CVE-2009-0591)
2273 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2275 *) Reject UniversalString and BMPString types with invalid lengths. This
2276 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2277 a legal length. (CVE-2009-0590)
2280 *) Set S/MIME signing as the default purpose rather than setting it
2281 unconditionally. This allows applications to override it at the store
2285 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2286 to handle some structures.
2289 *) Improve efficiency of mem_gets: don't search whole buffer each time
2291 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2293 *) New -hex option for openssl rand.
2296 *) Print out UTF8String and NumericString when parsing ASN1.
2299 *) Support NumericString type for name components.
2302 *) Allow CC in the environment to override the automatically chosen
2303 compiler. Note that nothing is done to ensure flags work with the
2307 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2309 *) Properly check EVP_VerifyFinal() and similar return values
2311 [Ben Laurie, Bodo Moeller, Google Security Team]
2313 *) Enable TLS extensions by default.
2316 *) Allow the CHIL engine to be loaded, whether the application is
2317 multithreaded or not. (This does not release the developer from the
2318 obligation to set up the dynamic locking callbacks.)
2319 [Sander Temme <sander@temme.net>]
2321 *) Use correct exit code if there is an error in dgst command.
2322 [Steve Henson; problem pointed out by Roland Dirlewanger]
2324 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2325 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2328 *) Add experimental JPAKE support, including demo authentication in
2329 s_client and s_server.
2332 *) Set the comparison function in v3_addr_canonize().
2333 [Rob Austein <sra@hactrn.net>]
2335 *) Add support for XMPP STARTTLS in s_client.
2336 [Philip Paeps <philip@freebsd.org>]
2338 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2339 to ensure that even with this option, only ciphersuites in the
2340 server's preference list will be accepted. (Note that the option
2341 applies only when resuming a session, so the earlier behavior was
2342 just about the algorithm choice for symmetric cryptography.)
2345 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2347 *) Fix NULL pointer dereference if a DTLS server received
2348 ChangeCipherSpec as first record (CVE-2009-1386).
2351 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2352 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2355 *) The fix in 0.9.8c that supposedly got rid of unsafe
2356 double-checked locking was incomplete for RSA blinding,
2357 addressing just one layer of what turns out to have been
2358 doubly unsafe triple-checked locking.
2360 So now fix this for real by retiring the MONT_HELPER macro
2361 in crypto/rsa/rsa_eay.c.
2363 [Bodo Moeller; problem pointed out by Marius Schilder]
2365 *) Various precautionary measures:
2367 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2369 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2370 (NB: This would require knowledge of the secret session ticket key
2371 to exploit, in which case you'd be SOL either way.)
2373 - Change bn_nist.c so that it will properly handle input BIGNUMs
2374 outside the expected range.
2376 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2379 [Neel Mehta, Bodo Moeller]
2381 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2382 the load fails. Useful for distros.
2383 [Ben Laurie and the FreeBSD team]
2385 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2388 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2391 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2393 This work was sponsored by Logica.
2396 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2397 keystores. Support for SSL/TLS client authentication too.
2398 Not compiled unless enable-capieng specified to Configure.
2400 This work was sponsored by Logica.
2403 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2404 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2405 attribute creation routines such as certifcate requests and PKCS#12
2409 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2411 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2412 handshake which could lead to a cilent crash as found using the
2413 Codenomicon TLS test suite (CVE-2008-1672)
2414 [Steve Henson, Mark Cox]
2416 *) Fix double free in TLS server name extensions which could lead to
2417 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2420 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2422 Clear the error queue to ensure that error entries left from
2423 older function calls do not interfere with the correct operation.
2424 [Lutz Jaenicke, Erik de Castro Lopo]
2426 *) Remove root CA certificates of commercial CAs:
2428 The OpenSSL project does not recommend any specific CA and does not
2429 have any policy with respect to including or excluding any CA.
2430 Therefore it does not make any sense to ship an arbitrary selection
2431 of root CA certificates with the OpenSSL software.
2434 *) RSA OAEP patches to fix two separate invalid memory reads.
2435 The first one involves inputs when 'lzero' is greater than
2436 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2437 before the beginning of from). The second one involves inputs where
2438 the 'db' section contains nothing but zeroes (there is a one-byte
2439 invalid read after the end of 'db').
2440 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2442 *) Partial backport from 0.9.9-dev:
2444 Introduce bn_mul_mont (dedicated Montgomery multiplication
2445 procedure) as a candidate for BIGNUM assembler implementation.
2446 While 0.9.9-dev uses assembler for various architectures, only
2447 x86_64 is available by default here in the 0.9.8 branch, and
2448 32-bit x86 is available through a compile-time setting.
2450 To try the 32-bit x86 assembler implementation, use Configure
2451 option "enable-montasm" (which exists only for this backport).
2453 As "enable-montasm" for 32-bit x86 disclaims code stability
2454 anyway, in this constellation we activate additional code
2455 backported from 0.9.9-dev for further performance improvements,
2456 namely BN_from_montgomery_word. (To enable this otherwise,
2457 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2459 [Andy Polyakov (backport partially by Bodo Moeller)]
2461 *) Add TLS session ticket callback. This allows an application to set
2462 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2463 values. This is useful for key rollover for example where several key
2464 sets may exist with different names.
2467 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2468 This was broken until now in 0.9.8 releases, such that the only way
2469 a registered ENGINE could be used (assuming it initialises
2470 successfully on the host) was to explicitly set it as the default
2471 for the relevant algorithms. This is in contradiction with 0.9.7
2472 behaviour and the documentation. With this fix, when an ENGINE is
2473 registered into a given algorithm's table of implementations, the
2474 'uptodate' flag is reset so that auto-discovery will be used next
2475 time a new context for that algorithm attempts to select an
2477 [Ian Lister (tweaked by Geoff Thorpe)]
2479 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2480 implemention in the following ways:
2482 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2485 Lack of BER streaming support means one pass streaming processing is
2486 only supported if data is detached: setting the streaming flag is
2487 ignored for embedded content.
2489 CMS support is disabled by default and must be explicitly enabled
2490 with the enable-cms configuration option.
2493 *) Update the GMP engine glue to do direct copies between BIGNUM and
2494 mpz_t when openssl and GMP use the same limb size. Otherwise the
2495 existing "conversion via a text string export" trick is still used.
2496 [Paul Sheer <paulsheer@gmail.com>]
2498 *) Zlib compression BIO. This is a filter BIO which compressed and
2499 uncompresses any data passed through it.
2502 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2503 RFC3394 compatible AES key wrapping.
2506 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2507 sets string data without copying. X509_ALGOR_set0() and
2508 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2509 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2510 from an X509_ATTRIBUTE structure optionally checking it occurs only
2511 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2515 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2516 to get the expected BN_FLG_CONSTTIME behavior.
2517 [Bodo Moeller (Google)]
2521 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2522 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2523 - added some more tests to do_tests.pl
2524 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2525 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2526 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2527 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2528 - various changes to netware.pl to enable gcc-cross builds on Win32
2530 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2531 - various changes to fix missing prototype warnings
2532 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2533 - added AES, WHIRLPOOL and CPUID assembler code to build files
2534 - added missing AES assembler make rules to mk1mf.pl
2535 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2536 [Guenter Knauf <eflash@gmx.net>]
2538 *) Implement certificate status request TLS extension defined in RFC3546.
2539 A client can set the appropriate parameters and receive the encoded
2540 OCSP response via a callback. A server can query the supplied parameters
2541 and set the encoded OCSP response in the callback. Add simplified examples
2542 to s_client and s_server.
2545 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2547 *) Fix various bugs:
2548 + Binary incompatibility of ssl_ctx_st structure
2549 + DTLS interoperation with non-compliant servers
2550 + Don't call get_session_cb() without proposed session
2551 + Fix ia64 assembler code
2552 [Andy Polyakov, Steve Henson]
2554 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2556 *) DTLS Handshake overhaul. There were longstanding issues with
2557 OpenSSL DTLS implementation, which were making it impossible for
2558 RFC 4347 compliant client to communicate with OpenSSL server.
2559 Unfortunately just fixing these incompatibilities would "cut off"
2560 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2561 server keeps tolerating non RFC compliant syntax. The opposite is
2562 not true, 0.9.8f client can not communicate with earlier server.
2563 This update even addresses CVE-2007-4995.
2566 *) Changes to avoid need for function casts in OpenSSL: some compilers
2567 (gcc 4.2 and later) reject their use.
2568 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2571 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2572 RFC4507bis. The encrypted ticket format is an encrypted encoded
2573 SSL_SESSION structure, that way new session features are automatically
2576 If a client application caches session in an SSL_SESSION structure
2577 support is transparent because tickets are now stored in the encoded
2580 The SSL_CTX structure automatically generates keys for ticket
2581 protection in servers so again support should be possible
2582 with no application modification.
2584 If a client or server wishes to disable RFC4507 support then the option
2585 SSL_OP_NO_TICKET can be set.
2587 Add a TLS extension debugging callback to allow the contents of any client
2588 or server extensions to be examined.
2590 This work was sponsored by Google.
2593 *) Add initial support for TLS extensions, specifically for the server_name
2594 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2595 have new members for a host name. The SSL data structure has an
2596 additional member SSL_CTX *initial_ctx so that new sessions can be
2597 stored in that context to allow for session resumption, even after the
2598 SSL has been switched to a new SSL_CTX in reaction to a client's
2599 server_name extension.
2601 New functions (subject to change):
2603 SSL_get_servername()
2604 SSL_get_servername_type()
2607 New CTRL codes and macros (subject to change):
2609 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2610 - SSL_CTX_set_tlsext_servername_callback()
2611 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2612 - SSL_CTX_set_tlsext_servername_arg()
2613 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2615 openssl s_client has a new '-servername ...' option.
2617 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2618 '-key2 ...', '-servername_fatal' (subject to change). This allows
2619 testing the HostName extension for a specific single host name ('-cert'
2620 and '-key' remain fallbacks for handshakes without HostName
2621 negotiation). If the unrecogninzed_name alert has to be sent, this by
2622 default is a warning; it becomes fatal with the '-servername_fatal'
2625 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2627 *) Add AES and SSE2 assembly language support to VC++ build.
2630 *) Mitigate attack on final subtraction in Montgomery reduction.
2633 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2634 (which previously caused an internal error).
2637 *) Squeeze another 10% out of IGE mode when in != out.
2640 *) AES IGE mode speedup.
2641 [Dean Gaudet (Google)]
2643 *) Add the Korean symmetric 128-bit cipher SEED (see
2644 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2645 add SEED ciphersuites from RFC 4162:
2647 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2648 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2649 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2650 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2652 To minimize changes between patchlevels in the OpenSSL 0.9.8
2653 series, SEED remains excluded from compilation unless OpenSSL
2654 is configured with 'enable-seed'.
2655 [KISA, Bodo Moeller]
2657 *) Mitigate branch prediction attacks, which can be practical if a
2658 single processor is shared, allowing a spy process to extract
2659 information. For detailed background information, see
2660 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2661 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2662 and Necessary Software Countermeasures"). The core of the change
2663 are new versions BN_div_no_branch() and
2664 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2665 respectively, which are slower, but avoid the security-relevant
2666 conditional branches. These are automatically called by BN_div()
2667 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2668 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2669 remove a conditional branch.
2671 BN_FLG_CONSTTIME is the new name for the previous
2672 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2673 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2674 in the exponent causes BN_mod_exp_mont() to use the alternative
2675 implementation in BN_mod_exp_mont_consttime().) The old name
2676 remains as a deprecated alias.
2678 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2679 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2680 constant-time implementations for more than just exponentiation.
2681 Here too the old name is kept as a deprecated alias.
2683 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2684 the BN_BLINDING structure gets an independent copy of the
2685 modulus. This means that the previous "BIGNUM *m" argument to
2686 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2687 essentially becomes "const BIGNUM *m", although we can't actually
2688 change this in the header file before 0.9.9. It allows
2689 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2690 enable BN_FLG_CONSTTIME.
2692 [Matthew D Wood (Intel Corp)]
2694 *) In the SSL/TLS server implementation, be strict about session ID
2695 context matching (which matters if an application uses a single
2696 external cache for different purposes). Previously,
2697 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2698 set. This did ensure strict client verification, but meant that,
2699 with applications using a single external cache for quite
2700 different requirements, clients could circumvent ciphersuite
2701 restrictions for a given session ID context by starting a session
2702 in a different context.
2705 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2706 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2707 authentication-only ciphersuites.
2710 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2711 not complete and could lead to a possible single byte overflow
2712 (CVE-2007-5135) [Ben Laurie]
2714 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2716 *) Since AES128 and AES256 (and similarly Camellia128 and
2717 Camellia256) share a single mask bit in the logic of
2718 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2719 kludge to work properly if AES128 is available and AES256 isn't
2720 (or if Camellia128 is available and Camellia256 isn't).
2723 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2724 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2725 When a point or a seed is encoded in a BIT STRING, we need to
2726 prevent the removal of trailing zero bits to get the proper DER
2727 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2728 of a NamedBitList, for which trailing 0 bits need to be removed.)
2731 *) Have SSL/TLS server implementation tolerate "mismatched" record
2732 protocol version while receiving ClientHello even if the
2733 ClientHello is fragmented. (The server can't insist on the
2734 particular protocol version it has chosen before the ServerHello
2735 message has informed the client about his choice.)
2738 *) Add RFC 3779 support.
2739 [Rob Austein for ARIN, Ben Laurie]
2741 *) Load error codes if they are not already present instead of using a
2742 static variable. This allows them to be cleanly unloaded and reloaded.
2743 Improve header file function name parsing.
2746 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2747 or CAPABILITY handshake as required by RFCs.
2750 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2752 *) Introduce limits to prevent malicious keys being able to
2753 cause a denial of service. (CVE-2006-2940)
2754 [Steve Henson, Bodo Moeller]
2756 *) Fix ASN.1 parsing of certain invalid structures that can result
2757 in a denial of service. (CVE-2006-2937) [Steve Henson]
2759 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2760 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2762 *) Fix SSL client code which could crash if connecting to a
2763 malicious SSLv2 server. (CVE-2006-4343)
2764 [Tavis Ormandy and Will Drewry, Google Security Team]
2766 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2767 match only those. Before that, "AES256-SHA" would be interpreted
2768 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2769 the same strength classification in 0.9.7h) as we currently only
2770 have a single AES bit in the ciphersuite description bitmap.
2771 That change, however, also applied to ciphersuite strings such as
2772 "RC4-MD5" that intentionally matched multiple ciphersuites --
2773 namely, SSL 2.0 ciphersuites in addition to the more common ones
2774 from SSL 3.0/TLS 1.0.
2776 So we change the selection algorithm again: Naming an explicit
2777 ciphersuite selects this one ciphersuite, and any other similar
2778 ciphersuite (same bitmap) from *other* protocol versions.
2779 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2780 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2782 Since SSL 2.0 does not have any ciphersuites for which the
2783 128/256 bit distinction would be relevant, this works for now.
2784 The proper fix will be to use different bits for AES128 and
2785 AES256, which would have avoided the problems from the beginning;
2786 however, bits are scarce, so we can only do this in a new release
2787 (not just a patchlevel) when we can change the SSL_CIPHER
2788 definition to split the single 'unsigned long mask' bitmap into
2789 multiple values to extend the available space.
2793 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2795 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2796 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2798 *) Add AES IGE and biIGE modes.
2801 *) Change the Unix randomness entropy gathering to use poll() when
2802 possible instead of select(), since the latter has some
2803 undesirable limitations.
2804 [Darryl Miles via Richard Levitte and Bodo Moeller]
2806 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2807 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2808 cannot be implicitly activated as part of, e.g., the "AES" alias.
2809 However, please upgrade to OpenSSL 0.9.9[-dev] for
2810 non-experimental use of the ECC ciphersuites to get TLS extension
2811 support, which is required for curve and point format negotiation
2812 to avoid potential handshake problems.
2815 *) Disable rogue ciphersuites:
2817 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2818 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2819 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2821 The latter two were purportedly from
2822 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2825 Also deactivate the remaining ciphersuites from
2826 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2827 unofficial, and the ID has long expired.
2830 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2831 dual-core machines) and other potential thread-safety issues.
2834 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2835 versions), which is now available for royalty-free use
2836 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2837 Also, add Camellia TLS ciphersuites from RFC 4132.
2839 To minimize changes between patchlevels in the OpenSSL 0.9.8
2840 series, Camellia remains excluded from compilation unless OpenSSL
2841 is configured with 'enable-camellia'.
2844 *) Disable the padding bug check when compression is in use. The padding
2845 bug check assumes the first packet is of even length, this is not
2846 necessarily true if compresssion is enabled and can result in false
2847 positives causing handshake failure. The actual bug test is ancient
2848 code so it is hoped that implementations will either have fixed it by
2849 now or any which still have the bug do not support compression.
2852 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2854 *) When applying a cipher rule check to see if string match is an explicit
2855 cipher suite and only match that one cipher suite if it is.
2858 *) Link in manifests for VC++ if needed.
2859 [Austin Ziegler <halostatue@gmail.com>]
2861 *) Update support for ECC-based TLS ciphersuites according to
2862 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2863 TLS extensions, which are supported starting with the 0.9.9
2864 branch, not in the OpenSSL 0.9.8 branch).
2867 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2868 opaque EVP_CIPHER_CTX handling.
2871 *) Fixes and enhancements to zlib compression code. We now only use
2872 "zlib1.dll" and use the default __cdecl calling convention on Win32
2873 to conform with the standards mentioned here:
2874 http://www.zlib.net/DLL_FAQ.txt
2875 Static zlib linking now works on Windows and the new --with-zlib-include
2876 --with-zlib-lib options to Configure can be used to supply the location
2877 of the headers and library. Gracefully handle case where zlib library
2881 *) Several fixes and enhancements to the OID generation code. The old code
2882 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2883 handle numbers larger than ULONG_MAX, truncated printing and had a
2884 non standard OBJ_obj2txt() behaviour.
2887 *) Add support for building of engines under engine/ as shared libraries
2888 under VC++ build system.
2891 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2892 Hopefully, we will not see any false combination of paths any more.
2895 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2897 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2898 (part of SSL_OP_ALL). This option used to disable the
2899 countermeasure against man-in-the-middle protocol-version
2900 rollback in the SSL 2.0 server implementation, which is a bad
2901 idea. (CVE-2005-2969)
2903 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2904 for Information Security, National Institute of Advanced Industrial
2905 Science and Technology [AIST], Japan)]
2907 *) Add two function to clear and return the verify parameter flags.
2910 *) Keep cipherlists sorted in the source instead of sorting them at
2911 runtime, thus removing the need for a lock.
2914 *) Avoid some small subgroup attacks in Diffie-Hellman.
2915 [Nick Mathewson and Ben Laurie]
2917 *) Add functions for well-known primes.
2920 *) Extended Windows CE support.
2921 [Satoshi Nakamura and Andy Polyakov]
2923 *) Initialize SSL_METHOD structures at compile time instead of during
2924 runtime, thus removing the need for a lock.
2927 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2928 attempting to decrypt each encrypted key in turn. Add support to
2932 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2934 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2937 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2940 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2941 key into the same file any more.
2944 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2947 *) Add -utf8 command line and config file option to 'ca'.
2948 [Stefan <stf@udoma.org]
2950 *) Removed the macro des_crypt(), as it seems to conflict with some
2951 libraries. Use DES_crypt().
2954 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2955 involves renaming the source and generated shared-libs for
2956 both. The engines will accept the corrected or legacy ids
2957 ('ncipher' and '4758_cca' respectively) when binding. NB,
2958 this only applies when building 'shared'.
2959 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2961 *) Add attribute functions to EVP_PKEY structure. Modify
2962 PKCS12_create() to recognize a CSP name attribute and
2963 use it. Make -CSP option work again in pkcs12 utility.
2966 *) Add new functionality to the bn blinding code:
2967 - automatic re-creation of the BN_BLINDING parameters after
2968 a fixed number of uses (currently 32)
2969 - add new function for parameter creation
2970 - introduce flags to control the update behaviour of the
2971 BN_BLINDING parameters
2972 - hide BN_BLINDING structure
2973 Add a second BN_BLINDING slot to the RSA structure to improve
2974 performance when a single RSA object is shared among several
2978 *) Add support for DTLS.
2979 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2981 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2982 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2985 *) Remove buggy and incompletet DH cert support from
2986 ssl/ssl_rsa.c and ssl/s3_both.c
2989 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2990 the apps/openssl applications.
2993 *) Compile clean with "-Wall -Wmissing-prototypes
2994 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2995 DEBUG_SAFESTACK must also be set.
2998 *) Change ./Configure so that certain algorithms can be disabled by default.
2999 The new counterpiece to "no-xxx" is "enable-xxx".
3001 The patented RC5 and MDC2 algorithms will now be disabled unless
3002 "enable-rc5" and "enable-mdc2", respectively, are specified.
3004 (IDEA remains enabled despite being patented. This is because IDEA
3005 is frequently required for interoperability, and there is no license
3006 fee for non-commercial use. As before, "no-idea" can be used to
3007 avoid this algorithm.)
3011 *) Add processing of proxy certificates (see RFC 3820). This work was
3012 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3013 EGEE (Enabling Grids for E-science in Europe).
3016 *) RC4 performance overhaul on modern architectures/implementations, such
3017 as Intel P4, IA-64 and AMD64.
3020 *) New utility extract-section.pl. This can be used specify an alternative
3021 section number in a pod file instead of having to treat each file as
3022 a separate case in Makefile. This can be done by adding two lines to the
3025 =for comment openssl_section:XXX
3027 The blank line is mandatory.
3031 *) New arguments -certform, -keyform and -pass for s_client and s_server
3032 to allow alternative format key and certificate files and passphrase
3036 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3037 update associated structures and add various utility functions.
3039 Add new policy related verify parameters, include policy checking in
3040 standard verify code. Enhance 'smime' application with extra parameters
3041 to support policy checking and print out.
3044 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3045 Nehemiah processors. These extensions support AES encryption in hardware
3046 as well as RNG (though RNG support is currently disabled).
3047 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3049 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3052 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3053 [Andy Polyakov and a number of other people]
3055 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3056 implementation contributed by IBM.
3057 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3059 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3060 exponent rather than 'unsigned long'. There is a corresponding change to
3061 the new 'rsa_keygen' element of the RSA_METHOD structure.
3062 [Jelte Jansen, Geoff Thorpe]
3064 *) Functionality for creating the initial serial number file is now
3065 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3067 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3068 number file to 1, which is bound to cause problems. To avoid
3069 the problems while respecting compatibility between different 0.9.7
3070 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3071 CA.pl for serial number initialization. With the new release 0.9.8,
3072 we can fix the problem directly in the 'ca' utility.)
3075 *) Reduced header interdepencies by declaring more opaque objects in
3076 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3077 give fewer recursive includes, which could break lazy source code - so
3078 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3079 developers should define this symbol when building and using openssl to
3080 ensure they track the recommended behaviour, interfaces, [etc], but
3081 backwards-compatible behaviour prevails when this isn't defined.
3084 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3087 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3088 This will generate a random key of the appropriate length based on the
3089 cipher context. The EVP_CIPHER can provide its own random key generation
3090 routine to support keys of a specific form. This is used in the des and
3091 3des routines to generate a key of the correct parity. Update S/MIME
3092 code to use new functions and hence generate correct parity DES keys.
3093 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3094 valid (weak or incorrect parity).
3097 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3098 as looking them up. This is useful when the verified structure may contain
3099 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3100 present unless the new PKCS7_NO_CRL flag is asserted.
3103 *) Extend ASN1 oid configuration module. It now additionally accepts the
3106 shortName = some long name, 1.2.3.4
3109 *) Reimplemented the BN_CTX implementation. There is now no more static
3110 limitation on the number of variables it can handle nor the depth of the
3111 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3112 information can now expand as required, and rather than having a single
3113 static array of bignums, BN_CTX now uses a linked-list of such arrays
3114 allowing it to expand on demand whilst maintaining the usefulness of
3115 BN_CTX's "bundling".
3118 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3119 to allow all RSA operations to function using a single BN_CTX.
3122 *) Preliminary support for certificate policy evaluation and checking. This
3123 is initially intended to pass the tests outlined in "Conformance Testing
3124 of Relying Party Client Certificate Path Processing Logic" v1.07.
3127 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3128 remained unused and not that useful. A variety of other little bignum
3129 tweaks and fixes have also been made continuing on from the audit (see
3133 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3134 associated ASN1, EVP and SSL functions and old ASN1 macros.
3137 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3138 and this should never fail. So the return value from the use of
3139 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3140 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3143 *) BN_CTX_get() should return zero-valued bignums, providing the same
3144 initialised value as BN_new().
3145 [Geoff Thorpe, suggested by Ulf Möller]
3147 *) Support for inhibitAnyPolicy certificate extension.
3150 *) An audit of the BIGNUM code is underway, for which debugging code is
3151 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3152 is considered valid when processing BIGNUMs, and causes execution to
3153 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3154 further steps are taken to deliberately pollute unused data in BIGNUM
3155 structures to try and expose faulty code further on. For now, openssl will
3156 (in its default mode of operation) continue to tolerate the inconsistent
3157 forms that it has tolerated in the past, but authors and packagers should
3158 consider trying openssl and their own applications when compiled with
3159 these debugging symbols defined. It will help highlight potential bugs in
3160 their own code, and will improve the test coverage for OpenSSL itself. At
3161 some point, these tighter rules will become openssl's default to improve
3162 maintainability, though the assert()s and other overheads will remain only
3163 in debugging configurations. See bn.h for more details.
3164 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3166 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3167 that can only be obtained through BN_CTX_new() (which implicitly
3168 initialises it). The presence of this function only made it possible
3169 to overwrite an existing structure (and cause memory leaks).
3172 *) Because of the callback-based approach for implementing LHASH as a
3173 template type, lh_insert() adds opaque objects to hash-tables and
3174 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3175 to clean up those corresponding objects before destroying the hash table
3176 (and losing the object pointers). So some over-zealous constifications in
3177 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3178 objects as "const" and the lh_doall[_arg] callback wrappers are not
3179 prototyped to have "const" restrictions on the object pointers they are
3180 given (and so aren't required to cast them away any more).
3183 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3184 (speed) prefers to use its own implementation. The two implementations
3185 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3186 its object type properly exposed (MS_TM) instead of casting to/from "char
3187 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3188 aren't necessarily the greatest nomenclatures - but this is what was used
3189 internally to the implementation so I've used that for now.
3192 *) Ensure that deprecated functions do not get compiled when
3193 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3194 the self-tests were still using deprecated key-generation functions so
3195 these have been updated also.
3198 *) Reorganise PKCS#7 code to separate the digest location functionality
3199 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3200 New function PKCS7_set_digest() to set the digest type for PKCS#7
3201 digestedData type. Add additional code to correctly generate the
3202 digestedData type and add support for this type in PKCS7 initialization
3206 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3207 structure of type "other".
3210 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3211 sure the loop does correctly stop and breaking ("division by zero")
3212 modulus operations are not performed. The (pre-generated) prime
3213 table crypto/bn/bn_prime.h was already correct, but it could not be
3214 re-generated on some platforms because of the "division by zero"
3215 situation in the script.
3216 [Ralf S. Engelschall]
3218 *) Update support for ECC-based TLS ciphersuites according to
3219 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3220 SHA-1 now is only used for "small" curves (where the
3221 representation of a field element takes up to 24 bytes); for
3222 larger curves, the field element resulting from ECDH is directly
3223 used as premaster secret.
3224 [Douglas Stebila (Sun Microsystems Laboratories)]
3226 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3227 curve secp160r1 to the tests.
3228 [Douglas Stebila (Sun Microsystems Laboratories)]
3230 *) Add the possibility to load symbols globally with DSO.
3231 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3233 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3234 control of the error stack.
3237 *) Add support for STORE in ENGINE.
3240 *) Add the STORE type. The intention is to provide a common interface
3241 to certificate and key stores, be they simple file-based stores, or
3242 HSM-type store, or LDAP stores, or...
3243 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3246 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3247 pass a list of arguments to any function as well as provide a way
3248 for a function to pass data back to the caller.
3251 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3252 works like BUF_strdup() but can be used to duplicate a portion of
3253 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3257 *) Add the function sk_find_ex() which works like sk_find(), but will
3258 return an index to an element even if an exact match couldn't be
3259 found. The index is guaranteed to point at the element where the
3260 searched-for key would be inserted to preserve sorting order.
3263 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3264 takes an extra flags argument for optional functionality. Currently,
3265 the following flags are defined:
3267 OBJ_BSEARCH_VALUE_ON_NOMATCH
3268 This one gets OBJ_bsearch_ex() to return a pointer to the first
3269 element where the comparing function returns a negative or zero
3272 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3273 This one gets OBJ_bsearch_ex() to return a pointer to the first
3274 element where the comparing function returns zero. This is useful
3275 if there are more than one element where the comparing function
3279 *) Make it possible to create self-signed certificates with 'openssl ca'
3280 in such a way that the self-signed certificate becomes part of the
3281 CA database and uses the same mechanisms for serial number generation
3282 as all other certificate signing. The new flag '-selfsign' enables
3283 this functionality. Adapt CA.sh and CA.pl.in.
3286 *) Add functionality to check the public key of a certificate request
3287 against a given private. This is useful to check that a certificate
3288 request can be signed by that key (self-signing).
3291 *) Make it possible to have multiple active certificates with the same
3292 subject in the CA index file. This is done only if the keyword
3293 'unique_subject' is set to 'no' in the main CA section (default
3294 if 'CA_default') of the configuration file. The value is saved
3295 with the database itself in a separate index attribute file,
3296 named like the index file with '.attr' appended to the name.
3299 *) Generate muti valued AVAs using '+' notation in config files for
3303 *) Support for nameConstraints certificate extension.
3306 *) Support for policyConstraints certificate extension.
3309 *) Support for policyMappings certificate extension.
3312 *) Make sure the default DSA_METHOD implementation only uses its
3313 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3314 and change its own handlers to be NULL so as to remove unnecessary
3315 indirection. This lets alternative implementations fallback to the
3316 default implementation more easily.
3319 *) Support for directoryName in GeneralName related extensions
3323 *) Make it possible to link applications using Makefile.shared.
3324 Make that possible even when linking against static libraries!
3327 *) Support for single pass processing for S/MIME signing. This now
3328 means that S/MIME signing can be done from a pipe, in addition
3329 cleartext signing (multipart/signed type) is effectively streaming
3330 and the signed data does not need to be all held in memory.
3332 This is done with a new flag PKCS7_STREAM. When this flag is set
3333 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3334 is done after the data is output (and digests calculated) in
3335 SMIME_write_PKCS7().
3338 *) Add full support for -rpath/-R, both in shared libraries and
3339 applications, at least on the platforms where it's known how
3343 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3344 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3345 will now compute a table of multiples of the generator that
3346 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3347 faster (notably in the case of a single point multiplication,
3348 scalar * generator).
3349 [Nils Larsch, Bodo Moeller]
3351 *) IPv6 support for certificate extensions. The various extensions
3352 which use the IP:a.b.c.d can now take IPv6 addresses using the
3353 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3357 *) Added an ENGINE that implements RSA by performing private key
3358 exponentiations with the GMP library. The conversions to and from
3359 GMP's mpz_t format aren't optimised nor are any montgomery forms
3360 cached, and on x86 it appears OpenSSL's own performance has caught up.
3361 However there are likely to be other architectures where GMP could
3362 provide a boost. This ENGINE is not built in by default, but it can be
3363 specified at Configure time and should be accompanied by the necessary
3364 linker additions, eg;
3365 ./config -DOPENSSL_USE_GMP -lgmp
3368 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3369 testing availability of engines with "-t" - the old behaviour is
3370 produced by increasing the feature's verbosity with "-tt".
3373 *) ECDSA routines: under certain error conditions uninitialized BN objects
3374 could be freed. Solution: make sure initialization is performed early
3375 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3379 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3380 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3381 software implementations. For DSA and DH, parameter generation can
3382 also be overriden by providing the appropriate method callbacks.
3385 *) Change the "progress" mechanism used in key-generation and
3386 primality testing to functions that take a new BN_GENCB pointer in
3387 place of callback/argument pairs. The new API functions have "_ex"
3388 postfixes and the older functions are reimplemented as wrappers for
3389 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3390 declarations of the old functions to help (graceful) attempts to
3391 migrate to the new functions. Also, the new key-generation API
3392 functions operate on a caller-supplied key-structure and return
3393 success/failure rather than returning a key or NULL - this is to
3394 help make "keygen" another member function of RSA_METHOD etc.
3396 Example for using the new callback interface:
3398 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3402 BN_GENCB_set(&my_cb, my_callback, my_arg);
3404 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3405 /* For the meaning of a, b in calls to my_callback(), see the
3406 * documentation of the function that calls the callback.
3407 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3408 * my_callback should return 1 if it wants BN_is_prime_ex()
3409 * to continue, or 0 to stop.
3414 *) Change the ZLIB compression method to be stateful, and make it
3415 available to TLS with the number defined in
3416 draft-ietf-tls-compression-04.txt.
3419 *) Add the ASN.1 structures and functions for CertificatePair, which
3420 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3422 CertificatePair ::= SEQUENCE {
3423 forward [0] Certificate OPTIONAL,
3424 reverse [1] Certificate OPTIONAL,
3425 -- at least one of the pair shall be present -- }
3427 Also implement the PEM functions to read and write certificate
3428 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3430 This needed to be defined, mostly for the sake of the LDAP
3431 attribute crossCertificatePair, but may prove useful elsewhere as
3435 *) Make it possible to inhibit symlinking of shared libraries in
3436 Makefile.shared, for Cygwin's sake.
3439 *) Extend the BIGNUM API by creating a function
3440 void BN_set_negative(BIGNUM *a, int neg);
3441 and a macro that behave like
3442 int BN_is_negative(const BIGNUM *a);
3444 to avoid the need to access 'a->neg' directly in applications.
3447 *) Implement fast modular reduction for pseudo-Mersenne primes
3448 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3449 EC_GROUP_new_curve_GFp() will now automatically use this
3451 [Nils Larsch <nla@trustcenter.de>]
3453 *) Add new lock type (CRYPTO_LOCK_BN).
3456 *) Change the ENGINE framework to automatically load engines
3457 dynamically from specific directories unless they could be
3458 found to already be built in or loaded. Move all the
3459 current engines except for the cryptodev one to a new
3461 The engines in engines/ are built as shared libraries if
3462 the "shared" options was given to ./Configure or ./config.
3463 Otherwise, they are inserted in libcrypto.a.
3464 /usr/local/ssl/engines is the default directory for dynamic
3465 engines, but that can be overriden at configure time through
3466 the usual use of --prefix and/or --openssldir, and at run
3467 time with the environment variable OPENSSL_ENGINES.
3468 [Geoff Thorpe and Richard Levitte]
3470 *) Add Makefile.shared, a helper makefile to build shared
3471 libraries. Addapt Makefile.org.
3474 *) Add version info to Win32 DLLs.
3475 [Peter 'Luna' Runestig" <peter@runestig.com>]
3477 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3478 can be added using this API to created arbitrary PKCS#12
3479 files while avoiding the low level API.
3481 New options to PKCS12_create(), key or cert can be NULL and
3482 will then be omitted from the output file. The encryption
3483 algorithm NIDs can be set to -1 for no encryption, the mac
3484 iteration count can be set to 0 to omit the mac.
3486 Enhance pkcs12 utility by making the -nokeys and -nocerts
3487 options work when creating a PKCS#12 file. New option -nomac
3488 to omit the mac, NONE can be set for an encryption algorithm.
3489 New code is modified to use the enhanced PKCS12_create()
3490 instead of the low level API.
3493 *) Extend ASN1 encoder to support indefinite length constructed
3494 encoding. This can output sequences tags and octet strings in
3495 this form. Modify pk7_asn1.c to support indefinite length
3496 encoding. This is experimental and needs additional code to
3497 be useful, such as an ASN1 bio and some enhanced streaming
3500 Extend template encode functionality so that tagging is passed
3501 down to the template encoder.
3504 *) Let 'openssl req' fail if an argument to '-newkey' is not
3505 recognized instead of using RSA as a default.
3508 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3509 As these are not official, they are not included in "ALL";
3510 the "ECCdraft" ciphersuite group alias can be used to select them.
3511 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3513 *) Add ECDH engine support.
3514 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3516 *) Add ECDH in new directory crypto/ecdh/.
3517 [Douglas Stebila (Sun Microsystems Laboratories)]
3519 *) Let BN_rand_range() abort with an error after 100 iterations
3520 without success (which indicates a broken PRNG).
3523 *) Change BN_mod_sqrt() so that it verifies that the input value
3524 is really the square of the return value. (Previously,
3525 BN_mod_sqrt would show GIGO behaviour.)
3528 *) Add named elliptic curves over binary fields from X9.62, SECG,
3529 and WAP/WTLS; add OIDs that were still missing.
3531 [Sheueling Chang Shantz and Douglas Stebila
3532 (Sun Microsystems Laboratories)]
3534 *) Extend the EC library for elliptic curves over binary fields
3535 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3538 EC_GF2m_simple_method
3542 EC_GROUP_new_curve_GF2m
3543 EC_GROUP_set_curve_GF2m
3544 EC_GROUP_get_curve_GF2m
3545 EC_POINT_set_affine_coordinates_GF2m
3546 EC_POINT_get_affine_coordinates_GF2m
3547 EC_POINT_set_compressed_coordinates_GF2m
3549 Point compression for binary fields is disabled by default for
3550 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3553 As binary polynomials are represented as BIGNUMs, various members
3554 of the EC_GROUP and EC_POINT data structures can be shared
3555 between the implementations for prime fields and binary fields;
3556 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3557 are essentially identical to their ..._GFp counterparts.
3558 (For simplicity, the '..._GFp' prefix has been dropped from
3559 various internal method names.)
3561 An internal 'field_div' method (similar to 'field_mul' and
3562 'field_sqr') has been added; this is used only for binary fields.
3564 [Sheueling Chang Shantz and Douglas Stebila
3565 (Sun Microsystems Laboratories)]
3567 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3568 through methods ('mul', 'precompute_mult').
3570 The generic implementations (now internally called 'ec_wNAF_mul'
3571 and 'ec_wNAF_precomputed_mult') remain the default if these
3572 methods are undefined.
3574 [Sheueling Chang Shantz and Douglas Stebila
3575 (Sun Microsystems Laboratories)]
3577 *) New function EC_GROUP_get_degree, which is defined through
3578 EC_METHOD. For curves over prime fields, this returns the bit
3579 length of the modulus.
3581 [Sheueling Chang Shantz and Douglas Stebila
3582 (Sun Microsystems Laboratories)]
3584 *) New functions EC_GROUP_dup, EC_POINT_dup.
3585 (These simply call ..._new and ..._copy).
3587 [Sheueling Chang Shantz and Douglas Stebila
3588 (Sun Microsystems Laboratories)]
3590 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3591 Polynomials are represented as BIGNUMs (where the sign bit is not
3592 used) in the following functions [macros]:
3595 BN_GF2m_sub [= BN_GF2m_add]
3596 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3597 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3598 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3600 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3601 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3602 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3603 BN_GF2m_cmp [= BN_ucmp]
3605 (Note that only the 'mod' functions are actually for fields GF(2^m).
3606 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3608 For some functions, an the irreducible polynomial defining a
3609 field can be given as an 'unsigned int[]' with strictly
3610 decreasing elements giving the indices of those bits that are set;
3611 i.e., p[] represents the polynomial
3612 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3614 p[0] > p[1] > ... > p[k] = 0.
3615 This applies to the following functions:
3620 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3621 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3623 BN_GF2m_mod_sqrt_arr
3624 BN_GF2m_mod_solve_quad_arr
3628 Conversion can be performed by the following functions:
3633 bntest.c has additional tests for binary polynomial arithmetic.
3635 Two implementations for BN_GF2m_mod_div() are available.
3636 The default algorithm simply uses BN_GF2m_mod_inv() and
3637 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3638 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3639 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3641 [Sheueling Chang Shantz and Douglas Stebila
3642 (Sun Microsystems Laboratories)]
3644 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3645 functionality is disabled at compile-time.
3646 [Douglas Stebila <douglas.stebila@sun.com>]
3648 *) Change default behaviour of 'openssl asn1parse' so that more
3649 information is visible when viewing, e.g., a certificate:
3651 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3652 mode the content of non-printable OCTET STRINGs is output in a
3653 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3654 avoid the appearance of a printable string.
3655 [Nils Larsch <nla@trustcenter.de>]
3657 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3659 EC_GROUP_set_asn1_flag()
3660 EC_GROUP_get_asn1_flag()
3661 EC_GROUP_set_point_conversion_form()
3662 EC_GROUP_get_point_conversion_form()
3663 These control ASN1 encoding details:
3664 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3665 has been set to OPENSSL_EC_NAMED_CURVE.
3666 - Points are encoded in uncompressed form by default; options for
3667 asn1_for are as for point2oct, namely
3668 POINT_CONVERSION_COMPRESSED
3669 POINT_CONVERSION_UNCOMPRESSED
3670 POINT_CONVERSION_HYBRID
3672 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3675 EC_GROUP_get0_seed()
3676 EC_GROUP_get_seed_len()
3677 This is used only for ASN1 purposes (so far).
3678 [Nils Larsch <nla@trustcenter.de>]
3680 *) Add 'field_type' member to EC_METHOD, which holds the NID
3681 of the appropriate field type OID. The new function
3682 EC_METHOD_get_field_type() returns this value.
3683 [Nils Larsch <nla@trustcenter.de>]
3688 EC_POINT_point2hex()
3689 EC_POINT_hex2point()
3690 providing useful interfaces to EC_POINT_point2oct() and
3691 EC_POINT_oct2point().
3692 [Nils Larsch <nla@trustcenter.de>]
3694 *) Change internals of the EC library so that the functions
3695 EC_GROUP_set_generator()
3696 EC_GROUP_get_generator()
3697 EC_GROUP_get_order()
3698 EC_GROUP_get_cofactor()
3699 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3700 to methods, which would lead to unnecessary code duplication when
3701 adding different types of curves.
3702 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3704 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3705 arithmetic, and such that modified wNAFs are generated
3706 (which avoid length expansion in many cases).
3709 *) Add a function EC_GROUP_check_discriminant() (defined via
3710 EC_METHOD) that verifies that the curve discriminant is non-zero.
3712 Add a function EC_GROUP_check() that makes some sanity tests
3713 on a EC_GROUP, its generator and order. This includes
3714 EC_GROUP_check_discriminant().
3715 [Nils Larsch <nla@trustcenter.de>]
3717 *) Add ECDSA in new directory crypto/ecdsa/.
3719 Add applications 'openssl ecparam' and 'openssl ecdsa'
3720 (these are based on 'openssl dsaparam' and 'openssl dsa').
3722 ECDSA support is also included in various other files across the
3723 library. Most notably,
3724 - 'openssl req' now has a '-newkey ecdsa:file' option;
3725 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3726 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3727 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3728 them suitable for ECDSA where domain parameters must be
3729 extracted before the specific public key;
3730 - ECDSA engine support has been added.
3731 [Nils Larsch <nla@trustcenter.de>]
3733 *) Include some named elliptic curves, and add OIDs from X9.62,
3734 SECG, and WAP/WTLS. Each curve can be obtained from the new
3736 EC_GROUP_new_by_curve_name(),
3737 and the list of available named curves can be obtained with
3738 EC_get_builtin_curves().
3739 Also add a 'curve_name' member to EC_GROUP objects, which can be
3741 EC_GROUP_set_curve_name()
3742 EC_GROUP_get_curve_name()
3743 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3745 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3746 was actually never needed) and in BN_mul(). The removal in BN_mul()
3747 required a small change in bn_mul_part_recursive() and the addition
3748 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3749 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3750 bn_sub_words() and bn_add_words() except they take arrays with
3754 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3756 *) Cleanse PEM buffers before freeing them since they may contain
3758 [Benjamin Bennett <ben@psc.edu>]
3760 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3761 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3762 authentication-only ciphersuites.
3765 *) Since AES128 and AES256 share a single mask bit in the logic of
3766 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3767 kludge to work properly if AES128 is available and AES256 isn't.
3770 *) Expand security boundary to match 1.1.1 module.
3773 *) Remove redundant features: hash file source, editing of test vectors
3774 modify fipsld to use external fips_premain.c signature.
3777 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3778 run algorithm test programs.
3781 *) Make algorithm test programs more tolerant of whitespace.
3784 *) Have SSL/TLS server implementation tolerate "mismatched" record
3785 protocol version while receiving ClientHello even if the
3786 ClientHello is fragmented. (The server can't insist on the
3787 particular protocol version it has chosen before the ServerHello
3788 message has informed the client about his choice.)
3791 *) Load error codes if they are not already present instead of using a
3792 static variable. This allows them to be cleanly unloaded and reloaded.
3795 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3797 *) Introduce limits to prevent malicious keys being able to
3798 cause a denial of service. (CVE-2006-2940)
3799 [Steve Henson, Bodo Moeller]
3801 *) Fix ASN.1 parsing of certain invalid structures that can result
3802 in a denial of service. (CVE-2006-2937) [Steve Henson]
3804 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3805 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3807 *) Fix SSL client code which could crash if connecting to a
3808 malicious SSLv2 server. (CVE-2006-4343)
3809 [Tavis Ormandy and Will Drewry, Google Security Team]
3811 *) Change ciphersuite string processing so that an explicit
3812 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3813 will no longer include "AES128-SHA"), and any other similar
3814 ciphersuite (same bitmap) from *other* protocol versions (so that
3815 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3816 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3817 changes from 0.9.8b and 0.9.8d.
3820 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3822 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3823 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3825 *) Change the Unix randomness entropy gathering to use poll() when
3826 possible instead of select(), since the latter has some
3827 undesirable limitations.
3828 [Darryl Miles via Richard Levitte and Bodo Moeller]
3830 *) Disable rogue ciphersuites:
3832 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3833 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3834 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3836 The latter two were purportedly from
3837 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3840 Also deactive the remaining ciphersuites from
3841 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3842 unofficial, and the ID has long expired.
3845 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3846 dual-core machines) and other potential thread-safety issues.
3849 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3851 *) Adapt fipsld and the build system to link against the validated FIPS
3852 module in FIPS mode.
3855 *) Fixes for VC++ 2005 build under Windows.
3858 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3859 from a Windows bash shell such as MSYS. It is autodetected from the
3860 "config" script when run from a VC++ environment. Modify standard VC++
3861 build to use fipscanister.o from the GNU make build.
3864 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3866 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3867 The value now differs depending on if you build for FIPS or not.
3868 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3869 safely run with a non-FIPSed libcrypto, as it may crash because of
3870 the difference induced by this change.
3873 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3875 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3876 (part of SSL_OP_ALL). This option used to disable the
3877 countermeasure against man-in-the-middle protocol-version
3878 rollback in the SSL 2.0 server implementation, which is a bad
3879 idea. (CVE-2005-2969)
3881 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3882 for Information Security, National Institute of Advanced Industrial
3883 Science and Technology [AIST], Japan)]
3885 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3886 mainly for FIPS compliance and not fully integrated at this stage.
3889 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3890 the exponentiation using a fixed-length exponent. (Otherwise,
3891 the information leaked through timing could expose the secret key
3892 after many signatures; cf. Bleichenbacher's attack on DSA with
3896 *) Make a new fixed-window mod_exp implementation the default for
3897 RSA, DSA, and DH private-key operations so that the sequence of
3898 squares and multiplies and the memory access pattern are
3899 independent of the particular secret key. This will mitigate
3900 cache-timing and potential related attacks.
3902 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3903 and this is automatically used by BN_mod_exp_mont() if the new flag
3904 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3905 will use this BN flag for private exponents unless the flag
3906 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3907 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3909 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3911 *) Change the client implementation for SSLv23_method() and
3912 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3913 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3914 (Previously, the SSL 2.0 backwards compatible Client Hello
3915 message format would be used even with SSL_OP_NO_SSLv2.)
3918 *) Add support for smime-type MIME parameter in S/MIME messages which some
3922 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3923 a threadsafe manner. Modify rsa code to use new function and add calls
3924 to dsa and dh code (which had race conditions before).
3927 *) Include the fixed error library code in the C error file definitions
3928 instead of fixing them up at runtime. This keeps the error code
3929 structures constant.
3932 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3934 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3937 *) Fixes for newer kerberos headers. NB: the casts are needed because
3938 the 'length' field is signed on one version and unsigned on another
3939 with no (?) obvious way to tell the difference, without these VC++
3940 complains. Also the "definition" of FAR (blank) is no longer included
3941 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3942 some needed definitions.
3945 *) Undo Cygwin change.
3948 *) Added support for proxy certificates according to RFC 3820.
3949 Because they may be a security thread to unaware applications,
3950 they must be explicitely allowed in run-time. See
3951 docs/HOWTO/proxy_certificates.txt for further information.
3954 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3956 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3957 server and client random values. Previously
3958 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3959 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3961 This change has negligible security impact because:
3963 1. Server and client random values still have 24 bytes of pseudo random
3966 2. Server and client random values are sent in the clear in the initial
3969 3. The master secret is derived using the premaster secret (48 bytes in
3970 size for static RSA ciphersuites) as well as client server and random
3973 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3976 [Stephen Henson, reported by UK NISCC]
3978 *) Use Windows randomness collection on Cygwin.
3981 *) Fix hang in EGD/PRNGD query when communication socket is closed
3982 prematurely by EGD/PRNGD.
3983 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3985 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3988 *) Back-port of selected performance improvements from development
3989 branch, as well as improved support for PowerPC platforms.
3992 *) Add lots of checks for memory allocation failure, error codes to indicate
3993 failure and freeing up memory if a failure occurs.
3994 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3996 *) Add new -passin argument to dgst.
3999 *) Perform some character comparisons of different types in X509_NAME_cmp:
4000 this is needed for some certificates that reencode DNs into UTF8Strings
4001 (in violation of RFC3280) and can't or wont issue name rollover
4005 *) Make an explicit check during certificate validation to see that
4006 the CA setting in each certificate on the chain is correct. As a
4007 side effect always do the following basic checks on extensions,
4008 not just when there's an associated purpose to the check:
4010 - if there is an unhandled critical extension (unless the user
4011 has chosen to ignore this fault)
4012 - if the path length has been exceeded (if one is set at all)
4013 - that certain extensions fit the associated purpose (if one has
4017 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4019 *) Avoid a race condition when CRLs are checked in a multi threaded
4020 environment. This would happen due to the reordering of the revoked
4021 entries during signature checking and serial number lookup. Now the
4022 encoding is cached and the serial number sort performed under a lock.
4023 Add new STACK function sk_is_sorted().
4026 *) Add Delta CRL to the extension code.
4029 *) Various fixes to s3_pkt.c so alerts are sent properly.
4030 [David Holmes <d.holmes@f5.com>]
4032 *) Reduce the chances of duplicate issuer name and serial numbers (in
4033 violation of RFC3280) using the OpenSSL certificate creation utilities.
4034 This is done by creating a random 64 bit value for the initial serial
4035 number when a serial number file is created or when a self signed
4036 certificate is created using 'openssl req -x509'. The initial serial
4037 number file is created using 'openssl x509 -next_serial' in CA.pl
4038 rather than being initialized to 1.
4041 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4043 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4044 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4045 [Joe Orton, Steve Henson]
4047 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4049 [Joe Orton, Steve Henson]
4051 *) Make it possible to have multiple active certificates with the same
4052 subject in the CA index file. This is done only if the keyword
4053 'unique_subject' is set to 'no' in the main CA section (default
4054 if 'CA_default') of the configuration file. The value is saved
4055 with the database itself in a separate index attribute file,
4056 named like the index file with '.attr' appended to the name.
4059 *) X509 verify fixes. Disable broken certificate workarounds when
4060 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4061 keyUsage extension present. Don't accept CRLs with unhandled critical
4062 extensions: since verify currently doesn't process CRL extensions this
4063 rejects a CRL with *any* critical extensions. Add new verify error codes
4067 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4068 A clarification of RFC2560 will require the use of OCTET STRINGs and
4069 some implementations cannot handle the current raw format. Since OpenSSL
4070 copies and compares OCSP nonces as opaque blobs without any attempt at
4071 parsing them this should not create any compatibility issues.
4074 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4075 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4076 this HMAC (and other) operations are several times slower than OpenSSL
4080 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4081 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4083 *) Use the correct content when signing type "other".
4086 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4088 *) Fix various bugs revealed by running the NISCC test suite:
4090 Stop out of bounds reads in the ASN1 code when presented with
4091 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4093 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4095 If verify callback ignores invalid public key errors don't try to check
4096 certificate signature with the NULL public key.
4100 *) New -ignore_err option in ocsp application to stop the server
4101 exiting on the first error in a request.
4104 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4105 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4109 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4110 extra data after the compression methods not only for TLS 1.0
4111 but also for SSL 3.0 (as required by the specification).
4112 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4114 *) Change X509_certificate_type() to mark the key as exported/exportable
4115 when it's 512 *bits* long, not 512 bytes.
4118 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4119 blocks during encryption.
4122 *) Various fixes to base64 BIO and non blocking I/O. On write
4123 flushes were not handled properly if the BIO retried. On read
4124 data was not being buffered properly and had various logic bugs.
4125 This also affects blocking I/O when the data being decoded is a
4129 *) Various S/MIME bugfixes and compatibility changes:
4130 output correct application/pkcs7 MIME type if
4131 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4132 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4133 of files as .eml work). Correctly handle very long lines in MIME
4137 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4139 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4140 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4141 a protocol version number mismatch like a decryption error
4142 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4145 *) Turn on RSA blinding by default in the default implementation
4146 to avoid a timing attack. Applications that don't want it can call
4147 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4148 They would be ill-advised to do so in most cases.
4149 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4151 *) Change RSA blinding code so that it works when the PRNG is not
4152 seeded (in this case, the secret RSA exponent is abused as
4153 an unpredictable seed -- if it is not unpredictable, there
4154 is no point in blinding anyway). Make RSA blinding thread-safe
4155 by remembering the creator's thread ID in rsa->blinding and
4156 having all other threads use local one-time blinding factors
4157 (this requires more computation than sharing rsa->blinding, but
4158 avoids excessive locking; and if an RSA object is not shared
4159 between threads, blinding will still be very fast).
4162 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4163 ENGINE as defaults for all supported algorithms irrespective of
4164 the 'flags' parameter. 'flags' is now honoured, so applications
4165 should make sure they are passing it correctly.
4168 *) Target "mingw" now allows native Windows code to be generated in
4169 the Cygwin environment as well as with the MinGW compiler.
4172 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4174 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4175 via timing by performing a MAC computation even if incorrrect
4176 block cipher padding has been found. This is a countermeasure
4177 against active attacks where the attacker has to distinguish
4178 between bad padding and a MAC verification error. (CVE-2003-0078)
4180 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4181 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4182 Martin Vuagnoux (EPFL, Ilion)]
4184 *) Make the no-err option work as intended. The intention with no-err
4185 is not to have the whole error stack handling routines removed from
4186 libcrypto, it's only intended to remove all the function name and
4187 reason texts, thereby removing some of the footprint that may not
4188 be interesting if those errors aren't displayed anyway.
4190 NOTE: it's still possible for any application or module to have it's
4191 own set of error texts inserted. The routines are there, just not
4192 used by default when no-err is given.
4195 *) Add support for FreeBSD on IA64.
4196 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4198 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4199 Kerberos function mit_des_cbc_cksum(). Before this change,
4200 the value returned by DES_cbc_cksum() was like the one from
4201 mit_des_cbc_cksum(), except the bytes were swapped.
4202 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4204 *) Allow an application to disable the automatic SSL chain building.
4205 Before this a rather primitive chain build was always performed in
4206 ssl3_output_cert_chain(): an application had no way to send the
4207 correct chain if the automatic operation produced an incorrect result.
4209 Now the chain builder is disabled if either:
4211 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4213 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4215 The reasoning behind this is that an application would not want the
4216 auto chain building to take place if extra chain certificates are
4217 present and it might also want a means of sending no additional
4218 certificates (for example the chain has two certificates and the
4222 *) Add the possibility to build without the ENGINE framework.
4223 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4225 *) Under Win32 gmtime() can return NULL: check return value in
4226 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4229 *) DSA routines: under certain error conditions uninitialized BN objects
4230 could be freed. Solution: make sure initialization is performed early
4231 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4232 Nils Larsch <nla@trustcenter.de> via PR#459)
4235 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4236 checked on reconnect on the client side, therefore session resumption
4237 could still fail with a "ssl session id is different" error. This
4238 behaviour is masked when SSL_OP_ALL is used due to
4239 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4240 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4241 followup to PR #377.
4244 *) IA-32 assembler support enhancements: unified ELF targets, support
4245 for SCO/Caldera platforms, fix for Cygwin shared build.
4248 *) Add support for FreeBSD on sparc64. As a consequence, support for
4249 FreeBSD on non-x86 processors is separate from x86 processors on
4250 the config script, much like the NetBSD support.
4251 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4253 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4255 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4258 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4259 code (06) was taken as the first octet of the session ID and the last
4260 octet was ignored consequently. As a result SSLv2 client side session
4261 caching could not have worked due to the session ID mismatch between
4263 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4267 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4268 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4272 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4273 seems that in spite of existing for more than a year, many application
4274 author have done nothing to provide the necessary callbacks, which
4275 means that this particular engine will not work properly anywhere.
4276 This is a very unfortunate situation which forces us, in the name
4277 of usability, to give the hw_ncipher.c a static lock, which is part
4279 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4280 appear in 0.9.8 or later. We EXPECT application authors to have
4281 dealt properly with this when 0.9.8 is released (unless we actually
4282 make such changes in the libcrypto locking code that changes will
4283 have to be made anyway).
4286 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4287 octets have been read, EOF or an error occurs. Without this change
4288 some truncated ASN1 structures will not produce an error.
4291 *) Disable Heimdal support, since it hasn't been fully implemented.
4292 Still give the possibility to force the use of Heimdal, but with
4293 warnings and a request that patches get sent to openssl-dev.
4296 *) Add the VC-CE target, introduce the WINCE sysname, and add
4297 INSTALL.WCE and appropriate conditionals to make it build.
4298 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4300 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4301 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4302 edit numbers of the version.
4303 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4305 *) Introduce safe string copy and catenation functions
4306 (BUF_strlcpy() and BUF_strlcat()).
4307 [Ben Laurie (CHATS) and Richard Levitte]
4309 *) Avoid using fixed-size buffers for one-line DNs.
4310 [Ben Laurie (CHATS)]
4312 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4313 resizing buffers containing secrets, and use where appropriate.
4314 [Ben Laurie (CHATS)]
4316 *) Avoid using fixed size buffers for configuration file location.
4317 [Ben Laurie (CHATS)]
4319 *) Avoid filename truncation for various CA files.
4320 [Ben Laurie (CHATS)]
4322 *) Use sizeof in preference to magic numbers.
4323 [Ben Laurie (CHATS)]
4325 *) Avoid filename truncation in cert requests.
4326 [Ben Laurie (CHATS)]
4328 *) Add assertions to check for (supposedly impossible) buffer
4330 [Ben Laurie (CHATS)]
4332 *) Don't cache truncated DNS entries in the local cache (this could
4333 potentially lead to a spoofing attack).
4334 [Ben Laurie (CHATS)]
4336 *) Fix various buffers to be large enough for hex/decimal
4337 representations in a platform independent manner.
4338 [Ben Laurie (CHATS)]
4340 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4341 resizing buffers containing secrets, and use where appropriate.
4342 [Ben Laurie (CHATS)]
4344 *) Add BIO_indent() to avoid much slightly worrying code to do
4346 [Ben Laurie (CHATS)]
4348 *) Convert sprintf()/BIO_puts() to BIO_printf().
4349 [Ben Laurie (CHATS)]
4351 *) buffer_gets() could terminate with the buffer only half
4353 [Ben Laurie (CHATS)]
4355 *) Add assertions to prevent user-supplied crypto functions from
4356 overflowing internal buffers by having large block sizes, etc.
4357 [Ben Laurie (CHATS)]
4359 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4361 [Ben Laurie (CHATS)]
4363 *) Eliminate unused copy of key in RC4.
4364 [Ben Laurie (CHATS)]
4366 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4367 [Ben Laurie (CHATS)]
4369 *) Fix off-by-one error in EGD path.
4370 [Ben Laurie (CHATS)]
4372 *) If RANDFILE path is too long, ignore instead of truncating.
4373 [Ben Laurie (CHATS)]
4375 *) Eliminate unused and incorrectly sized X.509 structure
4377 [Ben Laurie (CHATS)]
4379 *) Eliminate unused and dangerous function knumber().
4380 [Ben Laurie (CHATS)]
4382 *) Eliminate unused and dangerous structure, KSSL_ERR.
4383 [Ben Laurie (CHATS)]
4385 *) Protect against overlong session ID context length in an encoded
4386 session object. Since these are local, this does not appear to be
4388 [Ben Laurie (CHATS)]
4390 *) Change from security patch (see 0.9.6e below) that did not affect
4391 the 0.9.6 release series:
4393 Remote buffer overflow in SSL3 protocol - an attacker could
4394 supply an oversized master key in Kerberos-enabled versions.
4396 [Ben Laurie (CHATS)]
4398 *) Change the SSL kerb5 codes to match RFC 2712.
4401 *) Make -nameopt work fully for req and add -reqopt switch.
4402 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4404 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4405 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4407 *) Make sure tests can be performed even if the corresponding algorithms
4408 have been removed entirely. This was also the last step to make
4409 OpenSSL compilable with DJGPP under all reasonable conditions.
4410 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4412 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4413 to allow version independent disabling of normally unselected ciphers,
4414 which may be activated as a side-effect of selecting a single cipher.
4416 (E.g., cipher list string "RSA" enables ciphersuites that are left
4417 out of "ALL" because they do not provide symmetric encryption.
4418 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4419 [Lutz Jaenicke, Bodo Moeller]
4421 *) Add appropriate support for separate platform-dependent build
4422 directories. The recommended way to make a platform-dependent
4423 build directory is the following (tested on Linux), maybe with
4426 # Place yourself outside of the OpenSSL source tree. In
4427 # this example, the environment variable OPENSSL_SOURCE
4428 # is assumed to contain the absolute OpenSSL source directory.
4429 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4430 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4431 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4432 mkdir -p `dirname $F`
4433 ln -s $OPENSSL_SOURCE/$F $F
4436 To be absolutely sure not to disturb the source tree, a "make clean"
4437 is a good thing. If it isn't successfull, don't worry about it,
4438 it probably means the source directory is very clean.
4441 *) Make sure any ENGINE control commands make local copies of string
4442 pointers passed to them whenever necessary. Otherwise it is possible
4443 the caller may have overwritten (or deallocated) the original string
4444 data when a later ENGINE operation tries to use the stored values.
4445 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4447 *) Improve diagnostics in file reading and command-line digests.
4448 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4450 *) Add AES modes CFB and OFB to the object database. Correct an
4451 error in AES-CFB decryption.
4454 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4455 allows existing EVP_CIPHER_CTX structures to be reused after
4456 calling EVP_*Final(). This behaviour is used by encryption
4457 BIOs and some applications. This has the side effect that
4458 applications must explicitly clean up cipher contexts with
4459 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4462 *) Check the values of dna and dnb in bn_mul_recursive before calling
4463 bn_mul_comba (a non zero value means the a or b arrays do not contain
4464 n2 elements) and fallback to bn_mul_normal if either is not zero.
4467 *) Fix escaping of non-ASCII characters when using the -subj option
4468 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4471 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4472 form for "surname", serialNumber has no short form.
4473 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4474 therefore remove "mail" short name for "internet 7".
4475 The OID for unique identifiers in X509 certificates is
4476 x500UniqueIdentifier, not uniqueIdentifier.
4477 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4480 *) Add an "init" command to the ENGINE config module and auto initialize
4481 ENGINEs. Without any "init" command the ENGINE will be initialized
4482 after all ctrl commands have been executed on it. If init=1 the
4483 ENGINE is initailized at that point (ctrls before that point are run
4484 on the uninitialized ENGINE and after on the initialized one). If
4485 init=0 then the ENGINE will not be iniatialized at all.
4488 *) Fix the 'app_verify_callback' interface so that the user-defined
4489 argument is actually passed to the callback: In the
4490 SSL_CTX_set_cert_verify_callback() prototype, the callback
4491 declaration has been changed from
4494 int (*cb)(X509_STORE_CTX *,void *);
4495 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4496 i=s->ctx->app_verify_callback(&ctx)
4497 has been changed into
4498 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4500 To update applications using SSL_CTX_set_cert_verify_callback(),
4501 a dummy argument can be added to their callback functions.
4502 [D. K. Smetters <smetters@parc.xerox.com>]
4504 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4505 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4507 *) Add and OPENSSL_LOAD_CONF define which will cause
4508 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4509 This allows older applications to transparently support certain
4510 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4511 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4512 load the config file and OPENSSL_add_all_algorithms_conf() which will
4513 always load it have also been added.
4516 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4517 Adjust NIDs and EVP layer.
4518 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4520 *) Config modules support in openssl utility.
4522 Most commands now load modules from the config file,
4523 though in a few (such as version) this isn't done
4524 because it couldn't be used for anything.
4526 In the case of ca and req the config file used is
4527 the same as the utility itself: that is the -config
4528 command line option can be used to specify an
4532 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4533 use "openssl_conf" if filename is NULL use default openssl config file.
4536 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4537 config section name. Add a new flag to tolerate a missing config file
4538 and move code to CONF_modules_load_file().
4541 *) Support for crypto accelerator cards from Accelerated Encryption
4542 Processing, www.aep.ie. (Use engine 'aep')
4543 The support was copied from 0.9.6c [engine] and adapted/corrected
4544 to work with the new engine framework.
4545 [AEP Inc. and Richard Levitte]
4547 *) Support for SureWare crypto accelerator cards from Baltimore
4548 Technologies. (Use engine 'sureware')
4549 The support was copied from 0.9.6c [engine] and adapted
4550 to work with the new engine framework.
4553 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4554 make the newer ENGINE framework commands for the CHIL engine work.
4555 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4557 *) Make it possible to produce shared libraries on ReliantUNIX.
4558 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4560 *) Add the configuration target debug-linux-ppro.
4561 Make 'openssl rsa' use the general key loading routines
4562 implemented in apps.c, and make those routines able to
4563 handle the key format FORMAT_NETSCAPE and the variant
4565 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4567 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4568 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4570 *) Add -keyform to rsautl, and document -engine.
4571 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4573 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4574 BIO_R_NO_SUCH_FILE error code rather than the generic
4575 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4578 *) Add new functions
4580 ERR_peek_last_error_line
4581 ERR_peek_last_error_line_data.
4582 These are similar to
4585 ERR_peek_error_line_data,
4586 but report on the latest error recorded rather than the first one
4587 still in the error queue.
4588 [Ben Laurie, Bodo Moeller]
4590 *) default_algorithms option in ENGINE config module. This allows things
4592 default_algorithms = ALL
4593 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4596 *) Prelminary ENGINE config module.
4599 *) New experimental application configuration code.
4602 *) Change the AES code to follow the same name structure as all other
4603 symmetric ciphers, and behave the same way. Move everything to
4604 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4605 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4607 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4608 [Ben Laurie and Theo de Raadt]
4610 *) Add option to output public keys in req command.
4611 [Massimiliano Pala madwolf@openca.org]
4613 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4614 (up to about 10% better than before for P-192 and P-224).
4617 *) New functions/macros
4619 SSL_CTX_set_msg_callback(ctx, cb)
4620 SSL_CTX_set_msg_callback_arg(ctx, arg)
4621 SSL_set_msg_callback(ssl, cb)
4622 SSL_set_msg_callback_arg(ssl, arg)
4624 to request calling a callback function
4626 void cb(int write_p, int version, int content_type,
4627 const void *buf, size_t len, SSL *ssl, void *arg)
4629 whenever a protocol message has been completely received
4630 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4631 protocol version according to which the SSL library interprets
4632 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4633 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4634 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4635 specification (change_cipher_spec(20), alert(21), handshake(22)).
4636 'buf' and 'len' point to the actual message, 'ssl' to the
4637 SSL object, and 'arg' is the application-defined value set by
4638 SSL[_CTX]_set_msg_callback_arg().
4640 'openssl s_client' and 'openssl s_server' have new '-msg' options
4641 to enable a callback that displays all protocol messages.
4644 *) Change the shared library support so shared libraries are built as
4645 soon as the corresponding static library is finished, and thereby get
4646 openssl and the test programs linked against the shared library.
4647 This still only happens when the keyword "shard" has been given to
4648 the configuration scripts.
4650 NOTE: shared library support is still an experimental thing, and
4651 backward binary compatibility is still not guaranteed.
4652 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4654 *) Add support for Subject Information Access extension.
4655 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4657 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4658 additional bytes when new memory had to be allocated, not just
4659 when reusing an existing buffer.
4662 *) New command line and configuration option 'utf8' for the req command.
4663 This allows field values to be specified as UTF8 strings.
4666 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4667 runs for the former and machine-readable output for the latter.
4670 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4671 of the e-mail address in the DN (i.e., it will go into a certificate
4672 extension only). The new configuration file option 'email_in_dn = no'
4673 has the same effect.
4674 [Massimiliano Pala madwolf@openca.org]
4676 *) Change all functions with names starting with des_ to be starting
4677 with DES_ instead. Add wrappers that are compatible with libdes,
4678 but are named _ossl_old_des_*. Finally, add macros that map the
4679 des_* symbols to the corresponding _ossl_old_des_* if libdes
4680 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4681 desired, the des_* symbols will be mapped to DES_*, with one
4684 Since we provide two compatibility mappings, the user needs to
4685 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4686 compatibility is desired. The default (i.e., when that macro
4687 isn't defined) is OpenSSL 0.9.6c compatibility.
4689 There are also macros that enable and disable the support of old
4690 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4691 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4692 are defined, the default will apply: to support the old des routines.
4694 In either case, one must include openssl/des.h to get the correct
4695 definitions. Do not try to just include openssl/des_old.h, that
4698 NOTE: This is a major break of an old API into a new one. Software
4699 authors are encouraged to switch to the DES_ style functions. Some
4700 time in the future, des_old.h and the libdes compatibility functions
4701 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4702 default), and then completely removed.
4705 *) Test for certificates which contain unsupported critical extensions.
4706 If such a certificate is found during a verify operation it is
4707 rejected by default: this behaviour can be overridden by either
4708 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4709 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4710 X509_supported_extension() has also been added which returns 1 if a
4711 particular extension is supported.
4714 *) Modify the behaviour of EVP cipher functions in similar way to digests
4715 to retain compatibility with existing code.
4718 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4719 compatibility with existing code. In particular the 'ctx' parameter does
4720 not have to be to be initialized before the call to EVP_DigestInit() and
4721 it is tidied up after a call to EVP_DigestFinal(). New function
4722 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4723 EVP_MD_CTX_copy() changed to not require the destination to be
4724 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4725 requires the destination to be valid.
4727 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4728 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4731 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4732 so that complete 'Handshake' protocol structures are kept in memory
4733 instead of overwriting 'msg_type' and 'length' with 'body' data.
4736 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4737 [Massimo Santin via Richard Levitte]
4739 *) Major restructuring to the underlying ENGINE code. This includes
4740 reduction of linker bloat, separation of pure "ENGINE" manipulation
4741 (initialisation, etc) from functionality dealing with implementations
4742 of specific crypto iterfaces. This change also introduces integrated
4743 support for symmetric ciphers and digest implementations - so ENGINEs
4744 can now accelerate these by providing EVP_CIPHER and EVP_MD
4745 implementations of their own. This is detailed in crypto/engine/README
4746 as it couldn't be adequately described here. However, there are a few
4747 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4748 were changed in the original introduction of ENGINE code have now
4749 reverted back - the hooking from this code to ENGINE is now a good
4750 deal more passive and at run-time, operations deal directly with
4751 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4752 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4753 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4754 they were not being used by the framework as there is no concept of a
4755 BIGNUM_METHOD and they could not be generalised to the new
4756 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4757 ENGINE_cpy() has been removed as it cannot be consistently defined in
4761 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4764 *) Change mkdef.pl to sort symbols that get the same entry number,
4765 and make sure the automatically generated functions ERR_load_*
4766 become part of libeay.num as well.
4769 *) New function SSL_renegotiate_pending(). This returns true once
4770 renegotiation has been requested (either SSL_renegotiate() call
4771 or HelloRequest/ClientHello receveived from the peer) and becomes
4772 false once a handshake has been completed.
4773 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4774 sends a HelloRequest, but does not ensure that a handshake takes
4775 place. SSL_renegotiate_pending() is useful for checking if the
4776 client has followed the request.)
4779 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4780 By default, clients may request session resumption even during
4781 renegotiation (if session ID contexts permit); with this option,
4782 session resumption is possible only in the first handshake.
4784 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4785 more bits available for options that should not be part of
4786 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4789 *) Add some demos for certificate and certificate request creation.
4792 *) Make maximum certificate chain size accepted from the peer application
4793 settable (SSL*_get/set_max_cert_list()), as proposed by
4794 "Douglas E. Engert" <deengert@anl.gov>.
4797 *) Add support for shared libraries for Unixware-7
4798 (Boyd Lynn Gerber <gerberb@zenez.com>).
4801 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4802 be done prior to destruction. Use this to unload error strings from
4803 ENGINEs that load their own error strings. NB: This adds two new API
4804 functions to "get" and "set" this destroy handler in an ENGINE.
4807 *) Alter all existing ENGINE implementations (except "openssl" and
4808 "openbsd") to dynamically instantiate their own error strings. This
4809 makes them more flexible to be built both as statically-linked ENGINEs
4810 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4811 Also, add stub code to each that makes building them as self-contained
4812 shared-libraries easier (see README.ENGINE).
4815 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4816 implementations into applications that are completely implemented in
4817 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4818 commands that can be used to configure what shared-library to load and
4819 to control aspects of the way it is handled. Also, made an update to
4820 the README.ENGINE file that brings its information up-to-date and
4821 provides some information and instructions on the "dynamic" ENGINE
4822 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4825 *) Make it possible to unload ranges of ERR strings with a new
4826 "ERR_unload_strings" function.
4829 *) Add a copy() function to EVP_MD.
4832 *) Make EVP_MD routines take a context pointer instead of just the
4833 md_data void pointer.
4836 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4837 that the digest can only process a single chunk of data
4838 (typically because it is provided by a piece of
4839 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4840 is only going to provide a single chunk of data, and hence the
4841 framework needn't accumulate the data for oneshot drivers.
4844 *) As with "ERR", make it possible to replace the underlying "ex_data"
4845 functions. This change also alters the storage and management of global
4846 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4847 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4848 index counters. The API functions that use this state have been changed
4849 to take a "class_index" rather than pointers to the class's local STACK
4850 and counter, and there is now an API function to dynamically create new
4851 classes. This centralisation allows us to (a) plug a lot of the
4852 thread-safety problems that existed, and (b) makes it possible to clean
4853 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4854 such data would previously have always leaked in application code and
4855 workarounds were in place to make the memory debugging turn a blind eye
4856 to it. Application code that doesn't use this new function will still
4857 leak as before, but their memory debugging output will announce it now
4858 rather than letting it slide.
4860 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4861 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4862 has a return value to indicate success or failure.
4865 *) Make it possible to replace the underlying "ERR" functions such that the
4866 global state (2 LHASH tables and 2 locks) is only used by the "default"
4867 implementation. This change also adds two functions to "get" and "set"
4868 the implementation prior to it being automatically set the first time
4869 any other ERR function takes place. Ie. an application can call "get",
4870 pass the return value to a module it has just loaded, and that module
4871 can call its own "set" function using that value. This means the
4872 module's "ERR" operations will use (and modify) the error state in the
4873 application and not in its own statically linked copy of OpenSSL code.
4876 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4877 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4878 the operation, and provides a more encapsulated way for external code
4879 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4880 to use these functions rather than manually incrementing the counts.
4882 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4885 *) Add EVP test program.
4888 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4891 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4892 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4893 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4894 These allow a CRL to be built without having to access X509_CRL fields
4895 directly. Modify 'ca' application to use new functions.
4898 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4899 bug workarounds. Rollback attack detection is a security feature.
4900 The problem will only arise on OpenSSL servers when TLSv1 is not
4901 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4902 Software authors not wanting to support TLSv1 will have special reasons
4903 for their choice and can explicitly enable this option.
4904 [Bodo Moeller, Lutz Jaenicke]
4906 *) Rationalise EVP so it can be extended: don't include a union of
4907 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4908 (similar to those existing for EVP_CIPHER_CTX).
4913 EVP_MD_CTX_init(&md); /* new function call */
4914 EVP_DigestInit(&md, EVP_sha1());
4915 EVP_DigestUpdate(&md, in, len);
4916 EVP_DigestFinal(&md, out, NULL);
4917 EVP_MD_CTX_cleanup(&md); /* new function call */
4921 *) Make DES key schedule conform to the usual scheme, as well as
4922 correcting its structure. This means that calls to DES functions
4923 now have to pass a pointer to a des_key_schedule instead of a
4924 plain des_key_schedule (which was actually always a pointer
4927 des_key_schedule ks;
4929 des_set_key_checked(..., &ks);
4930 des_ncbc_encrypt(..., &ks, ...);
4932 (Note that a later change renames 'des_...' into 'DES_...'.)
4935 *) Initial reduction of linker bloat: the use of some functions, such as
4936 PEM causes large amounts of unused functions to be linked in due to
4937 poor organisation. For example pem_all.c contains every PEM function
4938 which has a knock on effect of linking in large amounts of (unused)
4939 ASN1 code. Grouping together similar functions and splitting unrelated
4940 functions prevents this.
4943 *) Cleanup of EVP macros.
4946 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4947 correct _ecb suffix.
4950 *) Add initial OCSP responder support to ocsp application. The
4951 revocation information is handled using the text based index
4952 use by the ca application. The responder can either handle
4953 requests generated internally, supplied in files (for example
4954 via a CGI script) or using an internal minimal server.
4957 *) Add configuration choices to get zlib compression for TLS.
4960 *) Changes to Kerberos SSL for RFC 2712 compliance:
4961 1. Implemented real KerberosWrapper, instead of just using
4962 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4963 2. Implemented optional authenticator field of KerberosWrapper.
4965 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4966 and authenticator structs; see crypto/krb5/.
4968 Generalized Kerberos calls to support multiple Kerberos libraries.
4969 [Vern Staats <staatsvr@asc.hpc.mil>,
4970 Jeffrey Altman <jaltman@columbia.edu>
4971 via Richard Levitte]
4973 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4974 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4975 values for each of the key sizes rather than having just
4976 parameters (and 'speed' generating keys each time).
4979 *) Speed up EVP routines.
4982 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4983 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4984 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4985 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4987 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4988 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4989 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4992 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4994 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4997 *) Added the OS2-EMX target.
4998 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5000 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5001 to support NCONF routines in extension code. New function CONF_set_nconf()
5002 to allow functions which take an NCONF to also handle the old LHASH
5003 structure: this means that the old CONF compatible routines can be
5004 retained (in particular wrt extensions) without having to duplicate the
5005 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5008 *) Enhance the general user interface with mechanisms for inner control
5009 and with possibilities to have yes/no kind of prompts.
5012 *) Change all calls to low level digest routines in the library and
5013 applications to use EVP. Add missing calls to HMAC_cleanup() and
5014 don't assume HMAC_CTX can be copied using memcpy().
5015 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5017 *) Add the possibility to control engines through control names but with
5018 arbitrary arguments instead of just a string.
5019 Change the key loaders to take a UI_METHOD instead of a callback
5020 function pointer. NOTE: this breaks binary compatibility with earlier
5021 versions of OpenSSL [engine].
5022 Adapt the nCipher code for these new conditions and add a card insertion
5026 *) Enhance the general user interface with mechanisms to better support
5027 dialog box interfaces, application-defined prompts, the possibility
5028 to use defaults (for example default passwords from somewhere else)
5029 and interrupts/cancellations.
5032 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5033 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5036 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5037 tidy up some unnecessarily weird code in 'sk_new()').
5038 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5040 *) Change the key loading routines for ENGINEs to use the same kind
5041 callback (pem_password_cb) as all other routines that need this
5045 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5046 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5047 than this minimum value is recommended.
5050 *) New random seeder for OpenVMS, using the system process statistics
5051 that are easily reachable.
5054 *) Windows apparently can't transparently handle global
5055 variables defined in DLLs. Initialisations such as:
5057 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5059 wont compile. This is used by the any applications that need to
5060 declare their own ASN1 modules. This was fixed by adding the option
5061 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5062 needed for static libraries under Win32.
5065 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5066 setting of purpose and trust fields. New X509_STORE trust and
5067 purpose functions and tidy up setting in other SSL functions.
5070 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5071 structure. These are inherited by X509_STORE_CTX when it is
5072 initialised. This allows various defaults to be set in the
5073 X509_STORE structure (such as flags for CRL checking and custom
5074 purpose or trust settings) for functions which only use X509_STORE_CTX
5075 internally such as S/MIME.
5077 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5078 trust settings if they are not set in X509_STORE. This allows X509_STORE
5079 purposes and trust (in S/MIME for example) to override any set by default.
5081 Add command line options for CRL checking to smime, s_client and s_server
5085 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5086 are set then the CRL is looked up in the X509_STORE structure and
5087 its validity and signature checked, then if the certificate is found
5088 in the CRL the verify fails with a revoked error.
5090 Various new CRL related callbacks added to X509_STORE_CTX structure.
5092 Command line options added to 'verify' application to support this.
5094 This needs some additional work, such as being able to handle multiple
5095 CRLs with different times, extension based lookup (rather than just
5096 by subject name) and ultimately more complete V2 CRL extension
5100 *) Add a general user interface API (crypto/ui/). This is designed
5101 to replace things like des_read_password and friends (backward
5102 compatibility functions using this new API are provided).
5103 The purpose is to remove prompting functions from the DES code
5104 section as well as provide for prompting through dialog boxes in
5105 a window system and the like.
5108 *) Add "ex_data" support to ENGINE so implementations can add state at a
5109 per-structure level rather than having to store it globally.
5112 *) Make it possible for ENGINE structures to be copied when retrieved by
5113 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5114 This causes the "original" ENGINE structure to act like a template,
5115 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5116 operational state can be localised to each ENGINE structure, despite the
5117 fact they all share the same "methods". New ENGINE structures returned in
5118 this case have no functional references and the return value is the single
5119 structural reference. This matches the single structural reference returned
5120 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5124 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5125 needs to match any other type at all we need to manually clear the
5129 *) Changes to the "openssl engine" utility to include;
5130 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5131 about an ENGINE's available control commands.
5132 - executing control commands from command line arguments using the
5133 '-pre' and '-post' switches. '-post' is only used if '-t' is
5134 specified and the ENGINE is successfully initialised. The syntax for
5135 the individual commands are colon-separated, for example;
5136 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5139 *) New dynamic control command support for ENGINEs. ENGINEs can now
5140 declare their own commands (numbers), names (strings), descriptions,
5141 and input types for run-time discovery by calling applications. A
5142 subset of these commands are implicitly classed as "executable"
5143 depending on their input type, and only these can be invoked through
5144 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5145 can be based on user input, config files, etc). The distinction is
5146 that "executable" commands cannot return anything other than a boolean
5147 result and can only support numeric or string input, whereas some
5148 discoverable commands may only be for direct use through
5149 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5150 pointers, or other custom uses. The "executable" commands are to
5151 support parameterisations of ENGINE behaviour that can be
5152 unambiguously defined by ENGINEs and used consistently across any
5153 OpenSSL-based application. Commands have been added to all the
5154 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5155 control over shared-library paths without source code alterations.
5158 *) Changed all ENGINE implementations to dynamically allocate their
5159 ENGINEs rather than declaring them statically. Apart from this being
5160 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5161 this also allows the implementations to compile without using the
5162 internal engine_int.h header.
5165 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5166 'const' value. Any code that should be able to modify a RAND_METHOD
5167 should already have non-const pointers to it (ie. they should only
5168 modify their own ones).
5171 *) Made a variety of little tweaks to the ENGINE code.
5172 - "atalla" and "ubsec" string definitions were moved from header files
5173 to C code. "nuron" string definitions were placed in variables
5174 rather than hard-coded - allowing parameterisation of these values
5175 later on via ctrl() commands.
5176 - Removed unused "#if 0"'d code.
5177 - Fixed engine list iteration code so it uses ENGINE_free() to release
5178 structural references.
5179 - Constified the RAND_METHOD element of ENGINE structures.
5180 - Constified various get/set functions as appropriate and added
5181 missing functions (including a catch-all ENGINE_cpy that duplicates
5182 all ENGINE values onto a new ENGINE except reference counts/state).
5183 - Removed NULL parameter checks in get/set functions. Setting a method
5184 or function to NULL is a way of cancelling out a previously set
5185 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5186 and doesn't justify the extra error symbols and code.
5187 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5188 flags from engine_int.h to engine.h.
5189 - Changed prototypes for ENGINE handler functions (init(), finish(),
5190 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5193 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5194 to the algorithm using long division. The binary algorithm can be
5195 used only if the modulus is odd. On 32-bit systems, it is faster
5196 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5197 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5198 up to 450 bits. In 64-bit environments, the binary algorithm
5199 appears to be advantageous for much longer moduli; here we use it
5200 for moduli up to 2048 bits.
5203 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5204 could not support the combine flag in choice fields.
5207 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5208 extensions from a certificate request to the certificate.
5211 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5212 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5213 file: this allows the display of the certificate about to be
5214 signed to be customised, to allow certain fields to be included
5215 or excluded and extension details. The old system didn't display
5216 multicharacter strings properly, omitted fields not in the policy
5217 and couldn't display additional details such as extensions.
5220 *) Function EC_POINTs_mul for multiple scalar multiplication
5221 of an arbitrary number of elliptic curve points
5222 \sum scalars[i]*points[i],
5223 optionally including the generator defined for the EC_GROUP:
5224 scalar*generator + \sum scalars[i]*points[i].
5226 EC_POINT_mul is a simple wrapper function for the typical case
5227 that the point list has just one item (besides the optional
5231 *) First EC_METHODs for curves over GF(p):
5233 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5234 operations and provides various method functions that can also
5235 operate with faster implementations of modular arithmetic.
5237 EC_GFp_mont_method() reuses most functions that are part of
5238 EC_GFp_simple_method, but uses Montgomery arithmetic.
5240 [Bodo Moeller; point addition and point doubling
5241 implementation directly derived from source code provided by
5242 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5244 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5245 crypto/ec/ec_lib.c):
5247 Curves are EC_GROUP objects (with an optional group generator)
5248 based on EC_METHODs that are built into the library.
5250 Points are EC_POINT objects based on EC_GROUP objects.
5252 Most of the framework would be able to handle curves over arbitrary
5253 finite fields, but as there are no obvious types for fields other
5254 than GF(p), some functions are limited to that for now.
5257 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5258 that the file contains a complete HTTP response.
5261 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5262 change the def and num file printf format specifier from "%-40sXXX"
5263 to "%-39s XXX". The latter will always guarantee a space after the
5264 field while the former will cause them to run together if the field
5265 is 40 of more characters long.
5268 *) Constify the cipher and digest 'method' functions and structures
5269 and modify related functions to take constant EVP_MD and EVP_CIPHER
5273 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5274 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5277 *) Modify EVP_Digest*() routines so they now return values. Although the
5278 internal software routines can never fail additional hardware versions
5282 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5284 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5285 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5288 ERR_R_NESTED_ASN1_ERROR
5290 ERR_R_MISSING_ASN1_EOS
5291 were 4 .. 9, conflicting with
5292 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5294 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5295 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5297 Add new error code 'ERR_R_INTERNAL_ERROR'.
5300 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5304 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5305 sets the subject name for a new request or supersedes the
5306 subject name in a given request. Formats that can be parsed are
5307 'CN=Some Name, OU=myOU, C=IT'
5309 'CN=Some Name/OU=myOU/C=IT'.
5311 Add options '-batch' and '-verbose' to 'openssl req'.
5312 [Massimiliano Pala <madwolf@hackmasters.net>]
5314 *) Introduce the possibility to access global variables through
5315 functions on platform were that's the best way to handle exporting
5316 global variables in shared libraries. To enable this functionality,
5317 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5318 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5319 is normally done by Configure or something similar).
5321 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5322 in the source file (foo.c) like this:
5324 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5325 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5327 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5328 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5330 OPENSSL_DECLARE_GLOBAL(int,foo);
5331 #define foo OPENSSL_GLOBAL_REF(foo)
5332 OPENSSL_DECLARE_GLOBAL(double,bar);
5333 #define bar OPENSSL_GLOBAL_REF(bar)
5335 The #defines are very important, and therefore so is including the
5336 header file everywhere where the defined globals are used.
5338 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5339 of ASN.1 items, but that structure is a bit different.
5341 The largest change is in util/mkdef.pl which has been enhanced with
5342 better and easier to understand logic to choose which symbols should
5343 go into the Windows .def files as well as a number of fixes and code
5344 cleanup (among others, algorithm keywords are now sorted
5345 lexicographically to avoid constant rewrites).
5348 *) In BN_div() keep a copy of the sign of 'num' before writing the
5349 result to 'rm' because if rm==num the value will be overwritten
5350 and produce the wrong result if 'num' is negative: this caused
5351 problems with BN_mod() and BN_nnmod().
5354 *) Function OCSP_request_verify(). This checks the signature on an
5355 OCSP request and verifies the signer certificate. The signer
5356 certificate is just checked for a generic purpose and OCSP request
5360 *) Add OCSP_check_validity() function to check the validity of OCSP
5361 responses. OCSP responses are prepared in real time and may only
5362 be a few seconds old. Simply checking that the current time lies
5363 between thisUpdate and nextUpdate max reject otherwise valid responses
5364 caused by either OCSP responder or client clock inaccuracy. Instead
5365 we allow thisUpdate and nextUpdate to fall within a certain period of
5366 the current time. The age of the response can also optionally be
5367 checked. Two new options -validity_period and -status_age added to
5371 *) If signature or public key algorithm is unrecognized print out its
5372 OID rather that just UNKNOWN.
5375 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5376 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5377 ID to be generated from the issuer certificate alone which can then be
5378 passed to OCSP_id_issuer_cmp().
5381 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5382 ASN1 modules to export functions returning ASN1_ITEM pointers
5383 instead of the ASN1_ITEM structures themselves. This adds several
5384 new macros which allow the underlying ASN1 function/structure to
5385 be accessed transparently. As a result code should not use ASN1_ITEM
5386 references directly (such as &X509_it) but instead use the relevant
5387 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5388 use of the new ASN1 code on platforms where exporting structures
5389 is problematical (for example in shared libraries) but exporting
5390 functions returning pointers to structures is not.
5393 *) Add support for overriding the generation of SSL/TLS session IDs.
5394 These callbacks can be registered either in an SSL_CTX or per SSL.
5395 The purpose of this is to allow applications to control, if they wish,
5396 the arbitrary values chosen for use as session IDs, particularly as it
5397 can be useful for session caching in multiple-server environments. A
5398 command-line switch for testing this (and any client code that wishes
5399 to use such a feature) has been added to "s_server".
5400 [Geoff Thorpe, Lutz Jaenicke]
5402 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5403 of the form '#if defined(...) || defined(...) || ...' and
5404 '#if !defined(...) && !defined(...) && ...'. This also avoids
5405 the growing number of special cases it was previously handling.
5408 *) Make all configuration macros available for application by making
5409 sure they are available in opensslconf.h, by giving them names starting
5410 with "OPENSSL_" to avoid conflicts with other packages and by making
5411 sure e_os2.h will cover all platform-specific cases together with
5413 Additionally, it is now possible to define configuration/platform-
5414 specific names (called "system identities"). In the C code, these
5415 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5416 macro with the name beginning with "OPENSSL_SYS_", which is determined
5417 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5421 *) New option -set_serial to 'req' and 'x509' this allows the serial
5422 number to use to be specified on the command line. Previously self
5423 signed certificates were hard coded with serial number 0 and the
5424 CA options of 'x509' had to use a serial number in a file which was
5428 *) New options to 'ca' utility to support V2 CRL entry extensions.
5429 Currently CRL reason, invalidity date and hold instruction are
5430 supported. Add new CRL extensions to V3 code and some new objects.
5433 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5434 disable standard block padding (aka PKCS#5 padding) in the EVP
5435 API, which was previously mandatory. This means that the data is
5436 not padded in any way and so the total length much be a multiple
5437 of the block size, otherwise an error occurs.
5440 *) Initial (incomplete) OCSP SSL support.
5443 *) New function OCSP_parse_url(). This splits up a URL into its host,
5444 port and path components: primarily to parse OCSP URLs. New -url
5445 option to ocsp utility.
5448 *) New nonce behavior. The return value of OCSP_check_nonce() now
5449 reflects the various checks performed. Applications can decide
5450 whether to tolerate certain situations such as an absent nonce
5451 in a response when one was present in a request: the ocsp application
5452 just prints out a warning. New function OCSP_add1_basic_nonce()
5453 this is to allow responders to include a nonce in a response even if
5454 the request is nonce-less.
5457 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5458 skipped when using openssl x509 multiple times on a single input file,
5459 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5462 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5463 set string type: to handle setting ASN1_TIME structures. Fix ca
5464 utility to correctly initialize revocation date of CRLs.
5467 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5468 the clients preferred ciphersuites and rather use its own preferences.
5469 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5470 Internet Explorer by ensuring unchanged hash method during stepup.
5471 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5474 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5475 to aes and add a new 'exist' option to print out symbols that don't
5479 *) Additional options to ocsp utility to allow flags to be set and
5480 additional certificates supplied.
5483 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5484 OCSP client a number of certificate to only verify the response
5488 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5489 handle the new API. Currently only ECB, CBC modes supported. Add new
5492 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5493 Encryption Standard (AES) Ciphersuites for Transport Layer
5494 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5495 not enabled by default and were not part of the "ALL" ciphersuite
5496 alias because they were not yet official; they could be
5497 explicitly requested by specifying the "AESdraft" ciphersuite
5498 group alias. In the final release of OpenSSL 0.9.7, the group
5499 alias is called "AES" and is part of "ALL".)
5500 [Ben Laurie, Steve Henson, Bodo Moeller]
5502 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5503 request to response.
5506 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5507 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5508 extract information from a certificate request. OCSP_response_create()
5509 creates a response and optionally adds a basic response structure.
5510 OCSP_basic_add1_status() adds a complete single response to a basic
5511 response and returns the OCSP_SINGLERESP structure just added (to allow
5512 extensions to be included for example). OCSP_basic_add1_cert() adds a
5513 certificate to a basic response and OCSP_basic_sign() signs a basic
5514 response with various flags. New helper functions ASN1_TIME_check()
5515 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5516 (converts ASN1_TIME to GeneralizedTime).
5519 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5520 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5521 structure from a certificate. X509_pubkey_digest() digests the public_key
5522 contents: this is used in various key identifiers.
5525 *) Make sk_sort() tolerate a NULL argument.
5526 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5528 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5529 passed by the function are trusted implicitly. If any of them signed the
5530 response then it is assumed to be valid and is not verified.
5533 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5534 to data. This was previously part of the PKCS7 ASN1 code. This
5535 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5536 [Steve Henson, reported by Kenneth R. Robinette
5537 <support@securenetterm.com>]
5539 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5540 routines: without these tracing memory leaks is very painful.
5541 Fix leaks in PKCS12 and PKCS7 routines.
5544 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5545 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5546 effectively meant GeneralizedTime would never be used. Now it
5547 is initialised to -1 but X509_time_adj() now has to check the value
5548 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5549 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5550 [Steve Henson, reported by Kenneth R. Robinette
5551 <support@securenetterm.com>]
5553 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5554 result in a zero length in the ASN1_INTEGER structure which was
5555 not consistent with the structure when d2i_ASN1_INTEGER() was used
5556 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5557 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5558 where it did not print out a minus for negative ASN1_INTEGER.
5561 *) Add summary printout to ocsp utility. The various functions which
5562 convert status values to strings have been renamed to:
5563 OCSP_response_status_str(), OCSP_cert_status_str() and
5564 OCSP_crl_reason_str() and are no longer static. New options
5565 to verify nonce values and to disable verification. OCSP response
5566 printout format cleaned up.
5569 *) Add additional OCSP certificate checks. These are those specified
5570 in RFC2560. This consists of two separate checks: the CA of the
5571 certificate being checked must either be the OCSP signer certificate
5572 or the issuer of the OCSP signer certificate. In the latter case the
5573 OCSP signer certificate must contain the OCSP signing extended key
5574 usage. This check is performed by attempting to match the OCSP
5575 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5576 in the OCSP_CERTID structures of the response.
5579 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5580 and related routines. This uses the standard OpenSSL certificate
5581 verify routines to perform initial checks (just CA validity) and
5582 to obtain the certificate chain. Then additional checks will be
5583 performed on the chain. Currently the root CA is checked to see
5584 if it is explicitly trusted for OCSP signing. This is used to set
5585 a root CA as a global signing root: that is any certificate that
5586 chains to that CA is an acceptable OCSP signing certificate.
5589 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5590 extensions from a separate configuration file.
5591 As when reading extensions from the main configuration file,
5592 the '-extensions ...' option may be used for specifying the
5594 [Massimiliano Pala <madwolf@comune.modena.it>]
5596 *) New OCSP utility. Allows OCSP requests to be generated or
5597 read. The request can be sent to a responder and the output
5598 parsed, outputed or printed in text form. Not complete yet:
5599 still needs to check the OCSP response validity.
5602 *) New subcommands for 'openssl ca':
5603 'openssl ca -status <serial>' prints the status of the cert with
5604 the given serial number (according to the index file).
5605 'openssl ca -updatedb' updates the expiry status of certificates
5607 [Massimiliano Pala <madwolf@comune.modena.it>]
5609 *) New '-newreq-nodes' command option to CA.pl. This is like
5610 '-newreq', but calls 'openssl req' with the '-nodes' option
5611 so that the resulting key is not encrypted.
5612 [Damien Miller <djm@mindrot.org>]
5614 *) New configuration for the GNU Hurd.
5615 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5617 *) Initial code to implement OCSP basic response verify. This
5618 is currently incomplete. Currently just finds the signer's
5619 certificate and verifies the signature on the response.
5622 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5623 value of OPENSSLDIR. This is available via the new '-d' option
5624 to 'openssl version', and is also included in 'openssl version -a'.
5627 *) Allowing defining memory allocation callbacks that will be given
5628 file name and line number information in additional arguments
5629 (a const char* and an int). The basic functionality remains, as
5630 well as the original possibility to just replace malloc(),
5631 realloc() and free() by functions that do not know about these
5632 additional arguments. To register and find out the current
5633 settings for extended allocation functions, the following
5634 functions are provided:
5636 CRYPTO_set_mem_ex_functions
5637 CRYPTO_set_locked_mem_ex_functions
5638 CRYPTO_get_mem_ex_functions
5639 CRYPTO_get_locked_mem_ex_functions
5641 These work the same way as CRYPTO_set_mem_functions and friends.
5642 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5643 extended allocation function is enabled.
5644 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5645 a conventional allocation function is enabled.
5646 [Richard Levitte, Bodo Moeller]
5648 *) Finish off removing the remaining LHASH function pointer casts.
5649 There should no longer be any prototype-casting required when using
5650 the LHASH abstraction, and any casts that remain are "bugs". See
5651 the callback types and macros at the head of lhash.h for details
5652 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5655 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5656 If /dev/[u]random devices are not available or do not return enough
5657 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5659 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5660 /etc/entropy will be queried once each in this sequence, quering stops
5661 when enough entropy was collected without querying more sockets.
5664 *) Change the Unix RAND_poll() variant to be able to poll several
5665 random devices, as specified by DEVRANDOM, until a sufficient amount
5666 of data has been collected. We spend at most 10 ms on each file
5667 (select timeout) and read in non-blocking mode. DEVRANDOM now
5668 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5669 (previously it was just the string "/dev/urandom"), so on typical
5670 platforms the 10 ms delay will never occur.
5671 Also separate out the Unix variant to its own file, rand_unix.c.
5672 For VMS, there's a currently-empty rand_vms.c.
5675 *) Move OCSP client related routines to ocsp_cl.c. These
5676 provide utility functions which an application needing
5677 to issue a request to an OCSP responder and analyse the
5678 response will typically need: as opposed to those which an
5679 OCSP responder itself would need which will be added later.
5681 OCSP_request_sign() signs an OCSP request with an API similar
5682 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5683 response. OCSP_response_get1_basic() extracts basic response
5684 from response. OCSP_resp_find_status(): finds and extracts status
5685 information from an OCSP_CERTID structure (which will be created
5686 when the request structure is built). These are built from lower
5687 level functions which work on OCSP_SINGLERESP structures but
5688 wont normally be used unless the application wishes to examine
5689 extensions in the OCSP response for example.
5691 Replace nonce routines with a pair of functions.
5692 OCSP_request_add1_nonce() adds a nonce value and optionally
5693 generates a random value. OCSP_check_nonce() checks the
5694 validity of the nonce in an OCSP response.
5697 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5698 This doesn't copy the supplied OCSP_CERTID and avoids the
5699 need to free up the newly created id. Change return type
5700 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5701 This can then be used to add extensions to the request.
5702 Deleted OCSP_request_new(), since most of its functionality
5703 is now in OCSP_REQUEST_new() (and the case insensitive name
5704 clash) apart from the ability to set the request name which
5705 will be added elsewhere.
5708 *) Update OCSP API. Remove obsolete extensions argument from
5709 various functions. Extensions are now handled using the new
5710 OCSP extension code. New simple OCSP HTTP function which
5711 can be used to send requests and parse the response.
5714 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5715 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5716 uses the special reorder version of SET OF to sort the attributes
5717 and reorder them to match the encoded order. This resolves a long
5718 standing problem: a verify on a PKCS7 structure just after signing
5719 it used to fail because the attribute order did not match the
5720 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5721 it uses the received order. This is necessary to tolerate some broken
5722 software that does not order SET OF. This is handled by encoding
5723 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5724 to produce the required SET OF.
5727 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5728 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5729 files to get correct declarations of the ASN.1 item variables.
5732 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5733 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5734 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5735 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5736 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5737 ASN1_ITEM and no wrapper functions.
5740 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5741 replace the old function pointer based I/O routines. Change most of
5742 the *_d2i_bio() and *_d2i_fp() functions to use these.
5745 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5746 lines, recognice more "algorithms" that can be deselected, and make
5747 it complain about algorithm deselection that isn't recognised.
5750 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5751 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5752 to use new functions. Add NO_ASN1_OLD which can be set to remove
5753 some old style ASN1 functions: this can be used to determine if old
5754 code will still work when these eventually go away.
5757 *) New extension functions for OCSP structures, these follow the
5758 same conventions as certificates and CRLs.
5761 *) New function X509V3_add1_i2d(). This automatically encodes and
5762 adds an extension. Its behaviour can be customised with various
5763 flags to append, replace or delete. Various wrappers added for
5764 certifcates and CRLs.
5767 *) Fix to avoid calling the underlying ASN1 print routine when
5768 an extension cannot be parsed. Correct a typo in the
5769 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5772 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5773 entries for variables.
5776 *) Add functionality to apps/openssl.c for detecting locking
5777 problems: As the program is single-threaded, all we have
5778 to do is register a locking callback using an array for
5779 storing which locks are currently held by the program.
5782 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5783 SSL_get_ex_data_X509_STORE_idx(), which is used in
5784 ssl_verify_cert_chain() and thus can be called at any time
5785 during TLS/SSL handshakes so that thread-safety is essential.
5786 Unfortunately, the ex_data design is not at all suited
5787 for multi-threaded use, so it probably should be abolished.
5790 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5791 [Broadcom, tweaked and integrated by Geoff Thorpe]
5793 *) Move common extension printing code to new function
5794 X509V3_print_extensions(). Reorganise OCSP print routines and
5795 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5798 *) New function X509_signature_print() to remove duplication in some
5802 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5803 set (this was treated exactly the same as SET OF previously). This
5804 is used to reorder the STACK representing the structure to match the
5805 encoding. This will be used to get round a problem where a PKCS7
5806 structure which was signed could not be verified because the STACK
5807 order did not reflect the encoded order.
5810 *) Reimplement the OCSP ASN1 module using the new code.
5813 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5814 for its ASN1 operations. The old style function pointers still exist
5815 for now but they will eventually go away.
5818 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5819 completely replaces the old ASN1 functionality with a table driven
5820 encoder and decoder which interprets an ASN1_ITEM structure describing
5821 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5822 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5823 has also been converted to the new form.
5826 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5827 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5828 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5829 for negative moduli.
5832 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5833 of not touching the result's sign bit.
5836 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5840 *) Changed the LHASH code to use prototypes for callbacks, and created
5841 macros to declare and implement thin (optionally static) functions
5842 that provide type-safety and avoid function pointer casting for the
5843 type-specific callbacks.
5846 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5848 [Veers Staats <staatsvr@asc.hpc.mil>,
5849 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5851 *) Reformat the FAQ so the different questions and answers can be divided
5852 in sections depending on the subject.
5855 *) Have the zlib compression code load ZLIB.DLL dynamically under
5859 *) New function BN_mod_sqrt for computing square roots modulo a prime
5860 (using the probabilistic Tonelli-Shanks algorithm unless
5861 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5862 be handled deterministically).
5863 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5865 *) Make BN_mod_inverse faster by explicitly handling small quotients
5866 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5867 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5870 *) New function BN_kronecker.
5873 *) Fix BN_gcd so that it works on negative inputs; the result is
5874 positive unless both parameters are zero.
5875 Previously something reasonably close to an infinite loop was
5876 possible because numbers could be growing instead of shrinking
5877 in the implementation of Euclid's algorithm.
5880 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5881 sign of the number in question.
5883 Fix BN_is_word(a,w) to work correctly for w == 0.
5885 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5886 because its test if the absolute value of 'a' equals 'w'.
5887 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5888 it exists mostly for use in the implementations of BN_is_zero(),
5889 BN_is_one(), and BN_is_word().
5892 *) New function BN_swap.
5895 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5896 the exponentiation functions are more likely to produce reasonable
5897 results on negative inputs.
5900 *) Change BN_mod_mul so that the result is always non-negative.
5901 Previously, it could be negative if one of the factors was negative;
5902 I don't think anyone really wanted that behaviour.
5905 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5906 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5907 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5908 and add new functions:
5917 BN_mod_lshift1_quick
5921 These functions always generate non-negative results.
5923 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5924 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5926 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5927 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5928 be reduced modulo m.
5929 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5932 The following entry accidentily appeared in the CHANGES file
5933 distributed with OpenSSL 0.9.7. The modifications described in
5934 it do *not* apply to OpenSSL 0.9.7.
5936 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5937 was actually never needed) and in BN_mul(). The removal in BN_mul()
5938 required a small change in bn_mul_part_recursive() and the addition
5939 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5940 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5941 bn_sub_words() and bn_add_words() except they take arrays with
5946 *) In 'openssl passwd', verify passwords read from the terminal
5947 unless the '-salt' option is used (which usually means that
5948 verification would just waste user's time since the resulting
5949 hash is going to be compared with some given password hash)
5950 or the new '-noverify' option is used.
5952 This is an incompatible change, but it does not affect
5953 non-interactive use of 'openssl passwd' (passwords on the command
5954 line, '-stdin' option, '-in ...' option) and thus should not
5958 *) Remove all references to RSAref, since there's no more need for it.
5961 *) Make DSO load along a path given through an environment variable
5962 (SHLIB_PATH) with shl_load().
5965 *) Constify the ENGINE code as a result of BIGNUM constification.
5966 Also constify the RSA code and most things related to it. In a
5967 few places, most notable in the depth of the ASN.1 code, ugly
5968 casts back to non-const were required (to be solved at a later
5972 *) Make it so the openssl application has all engines loaded by default.
5975 *) Constify the BIGNUM routines a little more.
5978 *) Add the following functions:
5980 ENGINE_load_cswift()
5982 ENGINE_load_atalla()
5984 ENGINE_load_builtin_engines()
5986 That way, an application can itself choose if external engines that
5987 are built-in in OpenSSL shall ever be used or not. The benefit is
5988 that applications won't have to be linked with libdl or other dso
5989 libraries unless it's really needed.
5991 Changed 'openssl engine' to load all engines on demand.
5992 Changed the engine header files to avoid the duplication of some
5993 declarations (they differed!).
5996 *) 'openssl engine' can now list capabilities.
5999 *) Better error reporting in 'openssl engine'.
6002 *) Never call load_dh_param(NULL) in s_server.
6005 *) Add engine application. It can currently list engines by name and
6006 identity, and test if they are actually available.
6009 *) Improve RPM specification file by forcing symbolic linking and making
6010 sure the installed documentation is also owned by root.root.
6011 [Damien Miller <djm@mindrot.org>]
6013 *) Give the OpenSSL applications more possibilities to make use of
6014 keys (public as well as private) handled by engines.
6017 *) Add OCSP code that comes from CertCo.
6020 *) Add VMS support for the Rijndael code.
6023 *) Added untested support for Nuron crypto accelerator.
6026 *) Add support for external cryptographic devices. This code was
6027 previously distributed separately as the "engine" branch.
6028 [Geoff Thorpe, Richard Levitte]
6030 *) Rework the filename-translation in the DSO code. It is now possible to
6031 have far greater control over how a "name" is turned into a filename
6032 depending on the operating environment and any oddities about the
6033 different shared library filenames on each system.
6036 *) Support threads on FreeBSD-elf in Configure.
6039 *) Fix for SHA1 assembly problem with MASM: it produces
6040 warnings about corrupt line number information when assembling
6041 with debugging information. This is caused by the overlapping
6043 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6046 NCONF_get_number() has no error checking at all. As a replacement,
6047 NCONF_get_number_e() is defined (_e for "error checking") and is
6048 promoted strongly. The old NCONF_get_number is kept around for
6049 binary backward compatibility.
6050 Make it possible for methods to load from something other than a BIO,
6051 by providing a function pointer that is given a name instead of a BIO.
6052 For example, this could be used to load configuration data from an
6056 *) Fix for non blocking accept BIOs. Added new I/O special reason
6057 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6058 with non blocking I/O was not possible because no retry code was
6059 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6063 *) Added the beginnings of Rijndael support.
6066 *) Fix for bug in DirectoryString mask setting. Add support for
6067 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6068 to allow certificate printing to more controllable, additional
6069 'certopt' option to 'x509' to allow new printing options to be
6073 *) Clean old EAY MD5 hack from e_os.h.
6076 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6078 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6079 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6080 [Joe Orton, Steve Henson]
6082 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6084 *) Fix additional bug revealed by the NISCC test suite:
6086 Stop bug triggering large recursion when presented with
6087 certain ASN.1 tags (CVE-2003-0851)
6090 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6092 *) Fix various bugs revealed by running the NISCC test suite:
6094 Stop out of bounds reads in the ASN1 code when presented with
6095 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6097 If verify callback ignores invalid public key errors don't try to check
6098 certificate signature with the NULL public key.
6102 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6103 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6107 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6108 extra data after the compression methods not only for TLS 1.0
6109 but also for SSL 3.0 (as required by the specification).
6110 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6112 *) Change X509_certificate_type() to mark the key as exported/exportable
6113 when it's 512 *bits* long, not 512 bytes.
6116 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6118 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6119 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6120 a protocol version number mismatch like a decryption error
6121 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6124 *) Turn on RSA blinding by default in the default implementation
6125 to avoid a timing attack. Applications that don't want it can call
6126 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6127 They would be ill-advised to do so in most cases.
6128 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6130 *) Change RSA blinding code so that it works when the PRNG is not
6131 seeded (in this case, the secret RSA exponent is abused as
6132 an unpredictable seed -- if it is not unpredictable, there
6133 is no point in blinding anyway). Make RSA blinding thread-safe
6134 by remembering the creator's thread ID in rsa->blinding and
6135 having all other threads use local one-time blinding factors
6136 (this requires more computation than sharing rsa->blinding, but
6137 avoids excessive locking; and if an RSA object is not shared
6138 between threads, blinding will still be very fast).
6141 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6143 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6144 via timing by performing a MAC computation even if incorrrect
6145 block cipher padding has been found. This is a countermeasure
6146 against active attacks where the attacker has to distinguish
6147 between bad padding and a MAC verification error. (CVE-2003-0078)
6149 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6150 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6151 Martin Vuagnoux (EPFL, Ilion)]
6153 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6155 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6156 memory from it's contents. This is done with a counter that will
6157 place alternating values in each byte. This can be used to solve
6158 two issues: 1) the removal of calls to memset() by highly optimizing
6159 compilers, and 2) cleansing with other values than 0, since those can
6160 be read through on certain media, for example a swap space on disk.
6163 *) Bugfix: client side session caching did not work with external caching,
6164 because the session->cipher setting was not restored when reloading
6165 from the external cache. This problem was masked, when
6166 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6167 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6170 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6171 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6172 [Zeev Lieber <zeev-l@yahoo.com>]
6174 *) Undo an undocumented change introduced in 0.9.6e which caused
6175 repeated calls to OpenSSL_add_all_ciphers() and
6176 OpenSSL_add_all_digests() to be ignored, even after calling
6180 *) Change the default configuration reader to deal with last line not
6181 being properly terminated.
6184 *) Change X509_NAME_cmp() so it applies the special rules on handling
6185 DN values that are of type PrintableString, as well as RDNs of type
6186 emailAddress where the value has the type ia5String.
6187 [stefank@valicert.com via Richard Levitte]
6189 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6190 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6191 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6192 the bitwise-OR of the two for use by the majority of applications
6193 wanting this behaviour, and update the docs. The documented
6194 behaviour and actual behaviour were inconsistent and had been
6195 changing anyway, so this is more a bug-fix than a behavioural
6197 [Geoff Thorpe, diagnosed by Nadav Har'El]
6199 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6200 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6203 *) Fix initialization code race conditions in
6204 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6205 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6206 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6207 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6208 ssl2_get_cipher_by_char(),
6209 ssl3_get_cipher_by_char().
6210 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6212 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6213 the cached sessions are flushed, as the remove_cb() might use ex_data
6214 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6215 (see [openssl.org #212]).
6216 [Geoff Thorpe, Lutz Jaenicke]
6218 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6219 length, instead of the encoding length to d2i_ASN1_OBJECT.
6222 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6224 *) [In 0.9.6g-engine release:]
6225 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6226 [Lynn Gazis <lgazis@rainbow.com>]
6228 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6230 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6231 and get fix the header length calculation.
6232 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6233 Alon Kantor <alonk@checkpoint.com> (and others),
6236 *) Use proper error handling instead of 'assertions' in buffer
6237 overflow checks added in 0.9.6e. This prevents DoS (the
6238 assertions could call abort()).
6239 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6241 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6243 *) Add various sanity checks to asn1_get_length() to reject
6244 the ASN1 length bytes if they exceed sizeof(long), will appear
6245 negative or the content length exceeds the length of the
6247 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6249 *) Fix cipher selection routines: ciphers without encryption had no flags
6250 for the cipher strength set and where therefore not handled correctly
6251 by the selection routines (PR #130).
6254 *) Fix EVP_dsa_sha macro.
6258 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6259 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6260 that was added in OpenSSL 0.9.6d.
6262 As the countermeasure turned out to be incompatible with some
6263 broken SSL implementations, the new option is part of SSL_OP_ALL.
6264 SSL_OP_ALL is usually employed when compatibility with weird SSL
6265 implementations is desired (e.g. '-bugs' option to 's_client' and
6266 's_server'), so the new option is automatically set in many
6270 *) Changes in security patch:
6272 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6273 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6274 Air Force Materiel Command, USAF, under agreement number
6277 *) Add various sanity checks to asn1_get_length() to reject
6278 the ASN1 length bytes if they exceed sizeof(long), will appear
6279 negative or the content length exceeds the length of the
6280 supplied buffer. (CVE-2002-0659)
6281 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6283 *) Assertions for various potential buffer overflows, not known to
6285 [Ben Laurie (CHATS)]
6287 *) Various temporary buffers to hold ASCII versions of integers were
6288 too small for 64 bit platforms. (CVE-2002-0655)
6289 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6291 *) Remote buffer overflow in SSL3 protocol - an attacker could
6292 supply an oversized session ID to a client. (CVE-2002-0656)
6293 [Ben Laurie (CHATS)]
6295 *) Remote buffer overflow in SSL2 protocol - an attacker could
6296 supply an oversized client master key. (CVE-2002-0656)
6297 [Ben Laurie (CHATS)]
6299 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6301 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6302 encoded as NULL) with id-dsa-with-sha1.
6303 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6305 *) Check various X509_...() return values in apps/req.c.
6306 [Nils Larsch <nla@trustcenter.de>]
6308 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6309 an end-of-file condition would erronously be flagged, when the CRLF
6310 was just at the end of a processed block. The bug was discovered when
6311 processing data through a buffering memory BIO handing the data to a
6312 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6313 <ptsekov@syntrex.com> and Nedelcho Stanev.
6316 *) Implement a countermeasure against a vulnerability recently found
6317 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6318 before application data chunks to avoid the use of known IVs
6319 with data potentially chosen by the attacker.
6322 *) Fix length checks in ssl3_get_client_hello().
6325 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6326 to prevent ssl3_read_internal() from incorrectly assuming that
6327 ssl3_read_bytes() found application data while handshake
6328 processing was enabled when in fact s->s3->in_read_app_data was
6329 merely automatically cleared during the initial handshake.
6330 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6332 *) Fix object definitions for Private and Enterprise: they were not
6333 recognized in their shortname (=lowercase) representation. Extend
6334 obj_dat.pl to issue an error when using undefined keywords instead
6335 of silently ignoring the problem (Svenning Sorensen
6336 <sss@sss.dnsalias.net>).
6339 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6340 generators, i.e. generators other than 2 and 5. (Previously, the
6341 code did not properly initialise the 'add' and 'rem' values to
6342 BN_generate_prime().)
6344 In the new general case, we do not insist that 'generator' is
6345 actually a primitive root: This requirement is rather pointless;
6346 a generator of the order-q subgroup is just as good, if not
6350 *) Map new X509 verification errors to alerts. Discovered and submitted by
6351 Tom Wu <tom@arcot.com>.
6354 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6355 returning non-zero before the data has been completely received
6356 when using non-blocking I/O.
6357 [Bodo Moeller; problem pointed out by John Hughes]
6359 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6360 [Ben Laurie, Lutz Jaenicke]
6362 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6363 Yoram Zahavi <YoramZ@gilian.com>).
6366 *) Add information about CygWin 1.3 and on, and preserve proper
6367 configuration for the versions before that.
6368 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6370 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6371 check whether we deal with a copy of a session and do not delete from
6372 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6373 <izhar@checkpoint.com>.
6376 *) Do not store session data into the internal session cache, if it
6377 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6378 flag is set). Proposed by Aslam <aslam@funk.com>.
6381 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6385 *) [In 0.9.6d-engine release:]
6386 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6387 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6389 *) Add the configuration target linux-s390x.
6390 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6392 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6393 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6394 variable as an indication that a ClientHello message has been
6395 received. As the flag value will be lost between multiple
6396 invocations of ssl3_accept when using non-blocking I/O, the
6397 function may not be aware that a handshake has actually taken
6398 place, thus preventing a new session from being added to the
6401 To avoid this problem, we now set s->new_session to 2 instead of
6402 using a local variable.
6403 [Lutz Jaenicke, Bodo Moeller]
6405 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6406 if the SSL_R_LENGTH_MISMATCH error is detected.
6407 [Geoff Thorpe, Bodo Moeller]
6409 *) New 'shared_ldflag' column in Configure platform table.
6412 *) Fix EVP_CIPHER_mode macro.
6413 ["Dan S. Camper" <dan@bti.net>]
6415 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6416 type, we must throw them away by setting rr->length to 0.
6417 [D P Chang <dpc@qualys.com>]
6419 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6421 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6422 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6423 worked incorrectly for those cases where range = 10..._2 and
6424 3*range is two bits longer than range.)
6427 *) Only add signing time to PKCS7 structures if it is not already
6431 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6432 OBJ_ld_ce should be OBJ_id_ce.
6433 Also some ip-pda OIDs in crypto/objects/objects.txt were
6434 incorrect (cf. RFC 3039).
6435 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6437 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6438 returns early because it has nothing to do.
6439 [Andy Schneider <andy.schneider@bjss.co.uk>]
6441 *) [In 0.9.6c-engine release:]
6442 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6443 [Andy Schneider <andy.schneider@bjss.co.uk>]
6445 *) [In 0.9.6c-engine release:]
6446 Add support for Cryptographic Appliance's keyserver technology.
6447 (Use engine 'keyclient')
6448 [Cryptographic Appliances and Geoff Thorpe]
6450 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6451 is called via tools/c89.sh because arguments have to be
6452 rearranged (all '-L' options must appear before the first object
6454 [Richard Shapiro <rshapiro@abinitio.com>]
6456 *) [In 0.9.6c-engine release:]
6457 Add support for Broadcom crypto accelerator cards, backported
6459 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6461 *) [In 0.9.6c-engine release:]
6462 Add support for SureWare crypto accelerator cards from
6463 Baltimore Technologies. (Use engine 'sureware')
6464 [Baltimore Technologies and Mark Cox]
6466 *) [In 0.9.6c-engine release:]
6467 Add support for crypto accelerator cards from Accelerated
6468 Encryption Processing, www.aep.ie. (Use engine 'aep')
6469 [AEP Inc. and Mark Cox]
6471 *) Add a configuration entry for gcc on UnixWare.
6472 [Gary Benson <gbenson@redhat.com>]
6474 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6475 messages are stored in a single piece (fixed-length part and
6476 variable-length part combined) and fix various bugs found on the way.
6479 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6480 instead. BIO_gethostbyname() does not know what timeouts are
6481 appropriate, so entries would stay in cache even when they have
6483 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6485 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6486 faced with a pathologically small ClientHello fragment that does
6487 not contain client_version: Instead of aborting with an error,
6488 simply choose the highest available protocol version (i.e.,
6489 TLS 1.0 unless it is disabled). In practice, ClientHello
6490 messages are never sent like this, but this change gives us
6491 strictly correct behaviour at least for TLS.
6494 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6495 never resets s->method to s->ctx->method when called from within
6496 one of the SSL handshake functions.
6497 [Bodo Moeller; problem pointed out by Niko Baric]
6499 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6500 (sent using the client's version number) if client_version is
6501 smaller than the protocol version in use. Also change
6502 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6503 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6504 the client will at least see that alert.
6507 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6511 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6512 client receives HelloRequest while in a handshake.
6513 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6515 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6516 should end in 'break', not 'goto end' which circuments various
6517 cleanups done in state SSL_ST_OK. But session related stuff
6518 must be disabled for SSL_ST_OK in the case that we just sent a
6521 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6522 before just sending a HelloRequest.
6523 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6525 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6526 reveal whether illegal block cipher padding was found or a MAC
6527 verification error occured. (Neither SSLerr() codes nor alerts
6528 are directly visible to potential attackers, but the information
6529 may leak via logfiles.)
6531 Similar changes are not required for the SSL 2.0 implementation
6532 because the number of padding bytes is sent in clear for SSL 2.0,
6533 and the extra bytes are just ignored. However ssl/s2_pkt.c
6534 failed to verify that the purported number of padding bytes is in
6538 *) Add OpenUNIX-8 support including shared libraries
6539 (Boyd Lynn Gerber <gerberb@zenez.com>).
6542 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6543 'wristwatch attack' using huge encoding parameters (cf.
6544 James H. Manger's CRYPTO 2001 paper). Note that the
6545 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6546 encoding parameters and hence was not vulnerable.
6549 *) BN_sqr() bug fix.
6550 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6552 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6553 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6554 followed by modular reduction.
6555 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6557 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6558 equivalent based on BN_pseudo_rand() instead of BN_rand().
6561 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6562 This function was broken, as the check for a new client hello message
6563 to handle SGC did not allow these large messages.
6564 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6567 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6570 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6571 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6574 *) Rework the configuration and shared library support for Tru64 Unix.
6575 The configuration part makes use of modern compiler features and
6576 still retains old compiler behavior for those that run older versions
6577 of the OS. The shared library support part includes a variant that
6578 uses the RPATH feature, and is available through the special
6579 configuration target "alpha-cc-rpath", which will never be selected
6581 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6583 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6584 with the same message size as in ssl3_get_certificate_request().
6585 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6586 messages might inadvertently be reject as too long.
6587 [Petr Lampa <lampa@fee.vutbr.cz>]
6589 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6592 *) Modified SSL library such that the verify_callback that has been set
6593 specificly for an SSL object with SSL_set_verify() is actually being
6594 used. Before the change, a verify_callback set with this function was
6595 ignored and the verify_callback() set in the SSL_CTX at the time of
6596 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6597 to allow the necessary settings.
6600 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6601 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6602 done automatically (in contradiction to the requirements of the C
6603 standard). This made problems when used from OpenSSH.
6606 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6607 dh->length and always used
6609 BN_rand_range(priv_key, dh->p).
6611 BN_rand_range() is not necessary for Diffie-Hellman, and this
6612 specific range makes Diffie-Hellman unnecessarily inefficient if
6613 dh->length (recommended exponent length) is much smaller than the
6614 length of dh->p. We could use BN_rand_range() if the order of
6615 the subgroup was stored in the DH structure, but we only have
6620 BN_rand(priv_key, l, ...)
6622 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6628 RSA_eay_public_encrypt
6629 RSA_eay_private_decrypt
6630 RSA_eay_private_encrypt (signing)
6631 RSA_eay_public_decrypt (signature verification)
6633 (default implementations for RSA_public_encrypt,
6634 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6635 always reject numbers >= n.
6638 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6639 to synchronize access to 'locking_thread'. This is necessary on
6640 systems where access to 'locking_thread' (an 'unsigned long'
6641 variable) is not atomic.
6644 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6645 *before* setting the 'crypto_lock_rand' flag. The previous code had
6646 a race condition if 0 is a valid thread ID.
6647 [Travis Vitek <vitek@roguewave.com>]
6649 *) Add support for shared libraries under Irix.
6650 [Albert Chin-A-Young <china@thewrittenword.com>]
6652 *) Add configuration option to build on Linux on both big-endian and
6654 [Ralf Baechle <ralf@uni-koblenz.de>]
6656 *) Add the possibility to create shared libraries on HP-UX.
6659 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6661 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6662 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6663 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6664 PRNG state recovery was possible based on the output of
6665 one PRNG request appropriately sized to gain knowledge on
6666 'md' followed by enough consecutive 1-byte PRNG requests
6667 to traverse all of 'state'.
6669 1. When updating 'md_local' (the current thread's copy of 'md')
6670 during PRNG output generation, hash all of the previous
6671 'md_local' value, not just the half used for PRNG output.
6673 2. Make the number of bytes from 'state' included into the hash
6674 independent from the number of PRNG bytes requested.
6676 The first measure alone would be sufficient to avoid
6677 Markku-Juhani's attack. (Actually it had never occurred
6678 to me that the half of 'md_local' used for chaining was the
6679 half from which PRNG output bytes were taken -- I had always
6680 assumed that the secret half would be used.) The second
6681 measure makes sure that additional data from 'state' is never
6682 mixed into 'md_local' in small portions; this heuristically
6683 further strengthens the PRNG.
6686 *) Fix crypto/bn/asm/mips3.s.
6689 *) When only the key is given to "enc", the IV is undefined. Print out
6690 an error message in this case.
6693 *) Handle special case when X509_NAME is empty in X509 printing routines.
6696 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6697 positive and less than q.
6700 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6701 used: it isn't thread safe and the add_lock_callback should handle
6703 [Paul Rose <Paul.Rose@bridge.com>]
6705 *) Verify that incoming data obeys the block size in
6706 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6710 [Ulf Möller, Bodo Möller]
6712 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6713 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6714 when fixing the server behaviour for backwards-compatible 'client
6715 hello' messages. (Note that the attack is impractical against
6716 SSL 3.0 and TLS 1.0 anyway because length and version checking
6717 means that the probability of guessing a valid ciphertext is
6718 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6721 Before 0.9.5, the countermeasure (hide the error by generating a
6722 random 'decryption result') did not work properly because
6723 ERR_clear_error() was missing, meaning that SSL_get_error() would
6724 detect the supposedly ignored error.
6726 Both problems are now fixed.
6729 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6730 (previously it was 1024).
6733 *) Fix for compatibility mode trust settings: ignore trust settings
6734 unless some valid trust or reject settings are present.
6737 *) Fix for blowfish EVP: its a variable length cipher.
6740 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6741 parameters in DSA public key structures and return an error in the
6742 DSA routines if parameters are absent.
6745 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6746 in the current directory if neither $RANDFILE nor $HOME was set.
6747 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6748 caused some confusion to Windows users who haven't defined $HOME.
6749 Thus RAND_file_name() is changed again: e_os.h can define a
6750 DEFAULT_HOME, which will be used if $HOME is not set.
6751 For Windows, we use "C:"; on other platforms, we still require
6752 environment variables.
6754 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6755 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6756 having multiple threads call RAND_poll() concurrently.
6759 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6760 combination of a flag and a thread ID variable.
6761 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6762 flag), *other* threads can enter ssleay_add_bytes without obeying
6763 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6764 that they do not hold after the first thread unsets add_do_not_lock).
6767 *) Change bctest again: '-x' expressions are not available in all
6771 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6773 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6774 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6776 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6777 the default extension for executables, if any. Also, make the perl
6778 scripts that use symlink() to test if it really exists and use "cp"
6779 if it doesn't. All this made OpenSSL compilable and installable in
6783 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6784 If SEQUENCE is length is indefinite just set c->slen to the total
6785 amount of data available.
6786 [Steve Henson, reported by shige@FreeBSD.org]
6787 [This change does not apply to 0.9.7.]
6789 *) Change bctest to avoid here-documents inside command substitution
6790 (workaround for FreeBSD /bin/sh bug).
6791 For compatibility with Ultrix, avoid shell functions (introduced
6792 in the bctest version that searches along $PATH).
6795 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6796 with des_encrypt() defined on some operating systems, like Solaris
6800 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6801 On the Importance of Eliminating Errors in Cryptographic
6802 Computations, J. Cryptology 14 (2001) 2, 101-119,
6803 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6806 *) MIPS assembler BIGNUM division bug fix.
6809 *) Disabled incorrect Alpha assembler code.
6812 *) Fix PKCS#7 decode routines so they correctly update the length
6813 after reading an EOC for the EXPLICIT tag.
6815 [This change does not apply to 0.9.7.]
6817 *) Fix bug in PKCS#12 key generation routines. This was triggered
6818 if a 3DES key was generated with a 0 initial byte. Include
6819 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6820 (but broken) behaviour.
6823 *) Enhance bctest to search for a working bc along $PATH and print
6825 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6827 *) Fix memory leaks in err.c: free err_data string if necessary;
6828 don't write to the wrong index in ERR_set_error_data.
6831 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6835 *) Replace rdtsc with _emit statements for VC++ version 5.
6836 [Jeremy Cooper <jeremy@baymoo.org>]
6838 *) Make it possible to reuse SSLv2 sessions.
6841 *) In copy_email() check for >= 0 as a return value for
6842 X509_NAME_get_index_by_NID() since 0 is a valid index.
6843 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6845 *) Avoid coredump with unsupported or invalid public keys by checking if
6846 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6847 PKCS7_verify() fails with non detached data.
6850 *) Don't use getenv in library functions when run as setuid/setgid.
6851 New function OPENSSL_issetugid().
6854 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6855 due to incorrect handling of multi-threading:
6857 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6859 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6861 3. Count how many times MemCheck_off() has been called so that
6862 nested use can be treated correctly. This also avoids
6863 inband-signalling in the previous code (which relied on the
6864 assumption that thread ID 0 is impossible).
6867 *) Add "-rand" option also to s_client and s_server.
6870 *) Fix CPU detection on Irix 6.x.
6871 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6872 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6874 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6877 [This change does not apply to 0.9.7.]
6879 *) Use the cached encoding of an X509_NAME structure rather than
6880 copying it. This is apparently the reason for the libsafe "errors"
6881 but the code is actually correct.
6884 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6885 Bleichenbacher's DSA attack.
6886 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6887 to be set and top=0 forces the highest bit to be set; top=-1 is new
6888 and leaves the highest bit random.
6889 [Ulf Moeller, Bodo Moeller]
6891 *) In the NCONF_...-based implementations for CONF_... queries
6892 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6893 a temporary CONF structure with the data component set to NULL
6894 (which gives segmentation faults in lh_retrieve).
6895 Instead, use NULL for the CONF pointer in CONF_get_string and
6896 CONF_get_number (which may use environment variables) and directly
6897 return NULL from CONF_get_section.
6900 *) Fix potential buffer overrun for EBCDIC.
6903 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6904 keyUsage if basicConstraints absent for a CA.
6907 *) Make SMIME_write_PKCS7() write mail header values with a format that
6908 is more generally accepted (no spaces before the semicolon), since
6909 some programs can't parse those values properly otherwise. Also make
6910 sure BIO's that break lines after each write do not create invalid
6914 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6915 macros previously used would not encode an empty SEQUENCE OF
6916 and break the signature.
6918 [This change does not apply to 0.9.7.]
6920 *) Zero the premaster secret after deriving the master secret in
6924 *) Add some EVP_add_digest_alias registrations (as found in
6925 OpenSSL_add_all_digests()) to SSL_library_init()
6926 aka OpenSSL_add_ssl_algorithms(). This provides improved
6927 compatibility with peers using X.509 certificates
6928 with unconventional AlgorithmIdentifier OIDs.
6931 *) Fix for Irix with NO_ASM.
6932 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6934 *) ./config script fixes.
6935 [Ulf Moeller, Richard Levitte]
6937 *) Fix 'openssl passwd -1'.
6940 *) Change PKCS12_key_gen_asc() so it can cope with non null
6941 terminated strings whose length is passed in the passlen
6942 parameter, for example from PEM callbacks. This was done
6943 by adding an extra length parameter to asc2uni().
6944 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6946 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6947 call failed, free the DSA structure.
6950 *) Fix to uni2asc() to cope with zero length Unicode strings.
6951 These are present in some PKCS#12 files.
6954 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6955 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6956 when writing a 32767 byte record.
6957 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6959 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6960 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6962 (RSA objects have a reference count access to which is protected
6963 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6964 so they are meant to be shared between threads.)
6965 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6966 "Reddie, Steven" <Steven.Reddie@ca.com>]
6968 *) Fix a deadlock in CRYPTO_mem_leaks().
6971 *) Use better test patterns in bntest.
6974 *) rand_win.c fix for Borland C.
6977 *) BN_rshift bugfix for n == 0.
6980 *) Add a 'bctest' script that checks for some known 'bc' bugs
6981 so that 'make test' does not abort just because 'bc' is broken.
6984 *) Store verify_result within SSL_SESSION also for client side to
6985 avoid potential security hole. (Re-used sessions on the client side
6986 always resulted in verify_result==X509_V_OK, not using the original
6987 result of the server certificate verification.)
6990 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6991 SSL3_RT_APPLICATION_DATA, return 0.
6992 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6996 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6997 releases, have been re-implemented by renaming the previous
6998 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6999 and ssl3_read_internal, respectively, and adding 'peek' parameters
7000 to them. The new ssl[23]_{read,peek} functions are calls to
7001 ssl[23]_read_internal with the 'peek' flag set appropriately.
7002 A 'peek' parameter has also been added to ssl3_read_bytes, which
7003 does the actual work for ssl3_read_internal.
7006 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7007 the method-specific "init()" handler. Also clean up ex_data after
7008 calling the method-specific "finish()" handler. Previously, this was
7009 happening the other way round.
7012 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7013 The previous value, 12, was not always sufficient for BN_mod_exp().
7016 *) Make sure that shared libraries get the internal name engine with
7017 the full version number and not just 0. This should mark the
7018 shared libraries as not backward compatible. Of course, this should
7019 be changed again when we can guarantee backward binary compatibility.
7022 *) Fix typo in get_cert_by_subject() in by_dir.c
7023 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7025 *) Rework the system to generate shared libraries:
7027 - Make note of the expected extension for the shared libraries and
7028 if there is a need for symbolic links from for example libcrypto.so.0
7029 to libcrypto.so.0.9.7. There is extended info in Configure for
7032 - Make as few rebuilds of the shared libraries as possible.
7034 - Still avoid linking the OpenSSL programs with the shared libraries.
7036 - When installing, install the shared libraries separately from the
7040 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7042 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7043 and not in SSL_clear because the latter is also used by the
7044 accept/connect functions; previously, the settings made by
7045 SSL_set_read_ahead would be lost during the handshake.
7046 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7048 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7049 Previously, it would create entries for disableed algorithms no
7053 *) Added several new manual pages for SSL_* function.
7056 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7058 *) In ssl23_get_client_hello, generate an error message when faced
7059 with an initial SSL 3.0/TLS record that is too small to contain the
7060 first two bytes of the ClientHello message, i.e. client_version.
7061 (Note that this is a pathologic case that probably has never happened
7062 in real life.) The previous approach was to use the version number
7063 from the record header as a substitute; but our protocol choice
7064 should not depend on that one because it is not authenticated
7065 by the Finished messages.
7068 *) More robust randomness gathering functions for Windows.
7069 [Jeffrey Altman <jaltman@columbia.edu>]
7071 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7072 not set then we don't setup the error code for issuer check errors
7073 to avoid possibly overwriting other errors which the callback does
7074 handle. If an application does set the flag then we assume it knows
7075 what it is doing and can handle the new informational codes
7079 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7080 a general "ANY" type, as such it should be able to decode anything
7081 including tagged types. However it didn't check the class so it would
7082 wrongly interpret tagged types in the same way as their universal
7083 counterpart and unknown types were just rejected. Changed so that the
7084 tagged and unknown types are handled in the same way as a SEQUENCE:
7085 that is the encoding is stored intact. There is also a new type
7086 "V_ASN1_OTHER" which is used when the class is not universal, in this
7087 case we have no idea what the actual type is so we just lump them all
7091 *) On VMS, stdout may very well lead to a file that is written to
7092 in a record-oriented fashion. That means that every write() will
7093 write a separate record, which will be read separately by the
7094 programs trying to read from it. This can be very confusing.
7096 The solution is to put a BIO filter in the way that will buffer
7097 text until a linefeed is reached, and then write everything a
7098 line at a time, so every record written will be an actual line,
7099 not chunks of lines and not (usually doesn't happen, but I've
7100 seen it once) several lines in one record. BIO_f_linebuffer() is
7103 Currently, it's a VMS-only method, because that's where it has
7104 been tested well enough.
7107 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7108 it can return incorrect results.
7109 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7110 but it was in 0.9.6-beta[12].)
7113 *) Disable the check for content being present when verifying detached
7114 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7115 include zero length content when signing messages.
7118 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7119 BIO_ctrl (for BIO pairs).
7122 *) Add DSO method for VMS.
7125 *) Bug fix: Montgomery multiplication could produce results with the
7129 *) Add RPM specification openssl.spec and modify it to build three
7130 packages. The default package contains applications, application
7131 documentation and run-time libraries. The devel package contains
7132 include files, static libraries and function documentation. The
7133 doc package contains the contents of the doc directory. The original
7134 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7137 *) Add a large number of documentation files for many SSL routines.
7138 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7140 *) Add a configuration entry for Sony News 4.
7141 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7143 *) Don't set the two most significant bits to one when generating a
7144 random number < q in the DSA library.
7147 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7148 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7149 the underlying transport is blocking) if a handshake took place.
7150 (The default behaviour is needed by applications such as s_client
7151 and s_server that use select() to determine when to use SSL_read;
7152 but for applications that know in advance when to expect data, it
7153 just makes things more complicated.)
7156 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7160 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7161 work better on such systems.
7162 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7164 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7165 Update PKCS12_parse() so it copies the friendlyName and the
7166 keyid to the certificates aux info.
7169 *) Fix bug in PKCS7_verify() which caused an infinite loop
7170 if there was more than one signature.
7171 [Sven Uszpelkat <su@celocom.de>]
7173 *) Major change in util/mkdef.pl to include extra information
7174 about each symbol, as well as presentig variables as well
7175 as functions. This change means that there's n more need
7176 to rebuild the .num files when some algorithms are excluded.
7179 *) Allow the verify time to be set by an application,
7180 rather than always using the current time.
7183 *) Phase 2 verify code reorganisation. The certificate
7184 verify code now looks up an issuer certificate by a
7185 number of criteria: subject name, authority key id
7186 and key usage. It also verifies self signed certificates
7187 by the same criteria. The main comparison function is
7188 X509_check_issued() which performs these checks.
7190 Lot of changes were necessary in order to support this
7191 without completely rewriting the lookup code.
7193 Authority and subject key identifier are now cached.
7195 The LHASH 'certs' is X509_STORE has now been replaced
7196 by a STACK_OF(X509_OBJECT). This is mainly because an
7197 LHASH can't store or retrieve multiple objects with
7198 the same hash value.
7200 As a result various functions (which were all internal
7201 use only) have changed to handle the new X509_STORE
7202 structure. This will break anything that messed round
7203 with X509_STORE internally.
7205 The functions X509_STORE_add_cert() now checks for an
7206 exact match, rather than just subject name.
7208 The X509_STORE API doesn't directly support the retrieval
7209 of multiple certificates matching a given criteria, however
7210 this can be worked round by performing a lookup first
7211 (which will fill the cache with candidate certificates)
7212 and then examining the cache for matches. This is probably
7213 the best we can do without throwing out X509_LOOKUP
7214 entirely (maybe later...).
7216 The X509_VERIFY_CTX structure has been enhanced considerably.
7218 All certificate lookup operations now go via a get_issuer()
7219 callback. Although this currently uses an X509_STORE it
7220 can be replaced by custom lookups. This is a simple way
7221 to bypass the X509_STORE hackery necessary to make this
7222 work and makes it possible to use more efficient techniques
7223 in future. A very simple version which uses a simple
7224 STACK for its trusted certificate store is also provided
7225 using X509_STORE_CTX_trusted_stack().
7227 The verify_cb() and verify() callbacks now have equivalents
7228 in the X509_STORE_CTX structure.
7230 X509_STORE_CTX also has a 'flags' field which can be used
7231 to customise the verify behaviour.
7234 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7235 excludes S/MIME capabilities.
7238 *) When a certificate request is read in keep a copy of the
7239 original encoding of the signed data and use it when outputing
7240 again. Signatures then use the original encoding rather than
7241 a decoded, encoded version which may cause problems if the
7242 request is improperly encoded.
7245 *) For consistency with other BIO_puts implementations, call
7246 buffer_write(b, ...) directly in buffer_puts instead of calling
7249 In BIO_puts, increment b->num_write as in BIO_write.
7250 [Peter.Sylvester@EdelWeb.fr]
7252 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7253 BN_zero, we may not return a BIGNUM with an array consisting of
7257 *) Avoid calling abort() from within the library when problems are
7258 detected, except if preprocessor symbols have been defined
7259 (such as REF_CHECK, BN_DEBUG etc.).
7262 *) New openssl application 'rsautl'. This utility can be
7263 used for low level RSA operations. DER public key
7264 BIO/fp routines also added.
7267 *) New Configure entry and patches for compiling on QNX 4.
7268 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7270 *) A demo state-machine implementation was sponsored by
7271 Nuron (http://www.nuron.com/) and is now available in
7272 demos/state_machine.
7275 *) New options added to the 'dgst' utility for signature
7276 generation and verification.
7279 *) Unrecognized PKCS#7 content types are now handled via a
7280 catch all ASN1_TYPE structure. This allows unsupported
7281 types to be stored as a "blob" and an application can
7282 encode and decode it manually.
7285 *) Fix various signed/unsigned issues to make a_strex.c
7287 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7289 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7290 length if passed a buffer. ASN1_INTEGER_to_BN failed
7291 if passed a NULL BN and its argument was negative.
7292 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7294 *) Modification to PKCS#7 encoding routines to output definite
7295 length encoding. Since currently the whole structures are in
7296 memory there's not real point in using indefinite length
7297 constructed encoding. However if OpenSSL is compiled with
7298 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7301 *) Added BIO_vprintf() and BIO_vsnprintf().
7304 *) Added more prefixes to parse for in the the strings written
7305 through a logging bio, to cover all the levels that are available
7306 through syslog. The prefixes are now:
7308 PANIC, EMERG, EMR => LOG_EMERG
7309 ALERT, ALR => LOG_ALERT
7310 CRIT, CRI => LOG_CRIT
7311 ERROR, ERR => LOG_ERR
7312 WARNING, WARN, WAR => LOG_WARNING
7313 NOTICE, NOTE, NOT => LOG_NOTICE
7314 INFO, INF => LOG_INFO
7315 DEBUG, DBG => LOG_DEBUG
7317 and as before, if none of those prefixes are present at the
7318 beginning of the string, LOG_ERR is chosen.
7320 On Win32, the LOG_* levels are mapped according to this:
7322 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7323 LOG_WARNING => EVENTLOG_WARNING_TYPE
7324 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7328 *) Made it possible to reconfigure with just the configuration
7329 argument "reconf" or "reconfigure". The command line arguments
7330 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7331 and are retrieved from there when reconfiguring.
7335 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7337 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7340 *) The obj_dat.pl script was messing up the sorting of object
7341 names. The reason was that it compared the quoted version
7342 of strings as a result "OCSP" > "OCSP Signing" because
7343 " > SPACE. Changed script to store unquoted versions of
7344 names and add quotes on output. It was also omitting some
7345 names from the lookup table if they were given a default
7346 value (that is if SN is missing it is given the same
7347 value as LN and vice versa), these are now added on the
7348 grounds that if an object has a name we should be able to
7349 look it up. Finally added warning output when duplicate
7350 short or long names are found.
7353 *) Changes needed for Tandem NSK.
7354 [Scott Uroff <scott@xypro.com>]
7356 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7357 RSA_padding_check_SSLv23(), special padding was never detected
7358 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7359 version rollback attacks was not effective.
7361 In s23_clnt.c, don't use special rollback-attack detection padding
7362 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7363 client; similarly, in s23_srvr.c, don't do the rollback check if
7364 SSL 2.0 is the only protocol enabled in the server.
7367 *) Make it possible to get hexdumps of unprintable data with 'openssl
7368 asn1parse'. By implication, the functions ASN1_parse_dump() and
7369 BIO_dump_indent() are added.
7372 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7373 these print out strings and name structures based on various
7374 flags including RFC2253 support and proper handling of
7375 multibyte characters. Added options to the 'x509' utility
7376 to allow the various flags to be set.
7379 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7380 Also change the functions X509_cmp_current_time() and
7381 X509_gmtime_adj() work with an ASN1_TIME structure,
7382 this will enable certificates using GeneralizedTime in validity
7383 dates to be checked.
7386 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7387 negative public key encodings) on by default,
7388 NO_NEG_PUBKEY_BUG can be set to disable it.
7391 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7392 content octets. An i2c_ASN1_OBJECT is unnecessary because
7393 the encoding can be trivially obtained from the structure.
7396 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7397 not read locks (CRYPTO_r_[un]lock).
7400 *) A first attempt at creating official support for shared
7401 libraries through configuration. I've kept it so the
7402 default is static libraries only, and the OpenSSL programs
7403 are always statically linked for now, but there are
7404 preparations for dynamic linking in place.
7405 This has been tested on Linux and Tru64.
7408 *) Randomness polling function for Win9x, as described in:
7409 Peter Gutmann, Software Generation of Practically Strong
7413 *) Fix so PRNG is seeded in req if using an already existing
7417 *) New options to smime application. -inform and -outform
7418 allow alternative formats for the S/MIME message including
7419 PEM and DER. The -content option allows the content to be
7420 specified separately. This should allow things like Netscape
7421 form signing output easier to verify.
7424 *) Fix the ASN1 encoding of tags using the 'long form'.
7427 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7428 STRING types. These convert content octets to and from the
7429 underlying type. The actual tag and length octets are
7430 already assumed to have been read in and checked. These
7431 are needed because all other string types have virtually
7432 identical handling apart from the tag. By having versions
7433 of the ASN1 functions that just operate on content octets
7434 IMPLICIT tagging can be handled properly. It also allows
7435 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7436 and ASN1_INTEGER are identical apart from the tag.
7439 *) Change the handling of OID objects as follows:
7441 - New object identifiers are inserted in objects.txt, following
7442 the syntax given in objects.README.
7443 - objects.pl is used to process obj_mac.num and create a new
7445 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7448 This is currently kind of a hack, and the perl code in objects.pl
7449 isn't very elegant, but it works as I intended. The simplest way
7450 to check that it worked correctly is to look in obj_dat.h and
7451 check the array nid_objs and make sure the objects haven't moved
7452 around (this is important!). Additions are OK, as well as
7453 consistent name changes.
7456 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7459 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7460 The given file adds to whatever has already been seeded into the
7461 random pool through the RANDFILE configuration file option or
7462 environment variable, or the default random state file.
7465 *) mkstack.pl now sorts each macro group into lexical order.
7466 Previously the output order depended on the order the files
7467 appeared in the directory, resulting in needless rewriting
7471 *) Patches to make OpenSSL compile under Win32 again. Mostly
7472 work arounds for the VC++ problem that it treats func() as
7473 func(void). Also stripped out the parts of mkdef.pl that
7474 added extra typesafe functions: these no longer exist.
7477 *) Reorganisation of the stack code. The macros are now all
7478 collected in safestack.h . Each macro is defined in terms of
7479 a "stack macro" of the form SKM_<name>(type, a, b). The
7480 DEBUG_SAFESTACK is now handled in terms of function casts,
7481 this has the advantage of retaining type safety without the
7482 use of additional functions. If DEBUG_SAFESTACK is not defined
7483 then the non typesafe macros are used instead. Also modified the
7484 mkstack.pl script to handle the new form. Needs testing to see
7485 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7486 the default if no major problems. Similar behaviour for ASN1_SET_OF
7487 and PKCS12_STACK_OF.
7490 *) When some versions of IIS use the 'NET' form of private key the
7491 key derivation algorithm is different. Normally MD5(password) is
7492 used as a 128 bit RC4 key. In the modified case
7493 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7494 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7495 as the old Netscape_RSA functions except they have an additional
7496 'sgckey' parameter which uses the modified algorithm. Also added
7497 an -sgckey command line option to the rsa utility. Thanks to
7498 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7499 algorithm to openssl-dev.
7502 *) The evp_local.h macros were using 'c.##kname' which resulted in
7503 invalid expansion on some systems (SCO 5.0.5 for example).
7504 Corrected to 'c.kname'.
7505 [Phillip Porch <root@theporch.com>]
7507 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7508 a STACK of email addresses from a certificate or request, these look
7509 in the subject name and the subject alternative name extensions and
7510 omit any duplicate addresses.
7513 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7514 This makes DSA verification about 2 % faster.
7517 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7518 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7519 plus overhead for 1024 bit moduli).
7520 This makes exponentiations about 0.5 % faster for 1024 bit
7521 exponents (as measured by "openssl speed rsa2048").
7524 *) Rename memory handling macros to avoid conflicts with other
7526 Malloc => OPENSSL_malloc
7527 Malloc_locked => OPENSSL_malloc_locked
7528 Realloc => OPENSSL_realloc
7529 Free => OPENSSL_free
7532 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7533 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7536 *) CygWin32 support.
7537 [John Jarvie <jjarvie@newsguy.com>]
7539 *) The type-safe stack code has been rejigged. It is now only compiled
7540 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7541 by default all type-specific stack functions are "#define"d back to
7542 standard stack functions. This results in more streamlined output
7543 but retains the type-safety checking possibilities of the original
7547 *) The STACK code has been cleaned up, and certain type declarations
7548 that didn't make a lot of sense have been brought in line. This has
7549 also involved a cleanup of sorts in safestack.h to more correctly
7550 map type-safe stack functions onto their plain stack counterparts.
7551 This work has also resulted in a variety of "const"ifications of
7552 lots of the code, especially "_cmp" operations which should normally
7553 be prototyped with "const" parameters anyway.
7556 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7557 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7558 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7559 where all of 'md' is used each time the PRNG is used, but 'state'
7560 is used only indexed by a cyclic counter. As entropy may not be
7561 well distributed from the beginning, 'md' is important as a
7562 chaining variable. However, the output function chains only half
7563 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7564 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7565 in all of 'state' being rewritten, with the new values depending
7566 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7569 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7570 the handshake is continued after ssl_verify_cert_chain();
7571 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7572 can lead to 'unexplainable' connection aborts later.
7573 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7575 *) Major EVP API cipher revision.
7576 Add hooks for extra EVP features. This allows various cipher
7577 parameters to be set in the EVP interface. Support added for variable
7578 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7579 setting of RC2 and RC5 parameters.
7581 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7584 Remove lots of duplicated code from the EVP library. For example *every*
7585 cipher init() function handles the 'iv' in the same way according to the
7586 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7587 for CFB and OFB modes they zero ctx->num.
7589 New functionality allows removal of S/MIME code RC2 hack.
7591 Most of the routines have the same form and so can be declared in terms
7594 By shifting this to the top level EVP_CipherInit() it can be removed from
7595 all individual ciphers. If the cipher wants to handle IVs or keys
7596 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7599 Change lots of functions like EVP_EncryptUpdate() to now return a
7600 value: although software versions of the algorithms cannot fail
7601 any installed hardware versions can.
7604 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7605 this option is set, tolerate broken clients that send the negotiated
7606 protocol version number instead of the requested protocol version
7610 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7611 i.e. non-zero for export ciphersuites, zero otherwise.
7612 Previous versions had this flag inverted, inconsistent with
7613 rsa_tmp_cb (..._TMP_RSA_CB).
7614 [Bodo Moeller; problem reported by Amit Chopra]
7616 *) Add missing DSA library text string. Work around for some IIS
7617 key files with invalid SEQUENCE encoding.
7620 *) Add a document (doc/standards.txt) that list all kinds of standards
7621 and so on that are implemented in OpenSSL.
7624 *) Enhance c_rehash script. Old version would mishandle certificates
7625 with the same subject name hash and wouldn't handle CRLs at all.
7626 Added -fingerprint option to crl utility, to support new c_rehash
7630 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7633 *) Fix for SSL server purpose checking. Server checking was
7634 rejecting certificates which had extended key usage present
7635 but no ssl client purpose.
7636 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7638 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7639 is a little unclear about how a blank password is handled.
7640 Since the password in encoded as a BMPString with terminating
7641 double NULL a zero length password would end up as just the
7642 double NULL. However no password at all is different and is
7643 handled differently in the PKCS#12 key generation code. NS
7644 treats a blank password as zero length. MSIE treats it as no
7645 password on export: but it will try both on import. We now do
7646 the same: PKCS12_parse() tries zero length and no password if
7647 the password is set to "" or NULL (NULL is now a valid password:
7648 it wasn't before) as does the pkcs12 application.
7651 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7652 perror when PEM_read_bio_X509_REQ fails, the error message must
7653 be obtained from the error queue.
7656 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7657 it in ERR_remove_state if appropriate, and change ERR_get_state
7658 accordingly to avoid race conditions (this is necessary because
7659 thread_hash is no longer constant once set).
7662 *) Bugfix for linux-elf makefile.one.
7665 *) RSA_get_default_method() will now cause a default
7666 RSA_METHOD to be chosen if one doesn't exist already.
7667 Previously this was only set during a call to RSA_new()
7668 or RSA_new_method(NULL) meaning it was possible for
7669 RSA_get_default_method() to return NULL.
7672 *) Added native name translation to the existing DSO code
7673 that will convert (if the flag to do so is set) filenames
7674 that are sufficiently small and have no path information
7675 into a canonical native form. Eg. "blah" converted to
7676 "libblah.so" or "blah.dll" etc.
7679 *) New function ERR_error_string_n(e, buf, len) which is like
7680 ERR_error_string(e, buf), but writes at most 'len' bytes
7681 including the 0 terminator. For ERR_error_string_n, 'buf'
7683 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7685 *) CONF library reworked to become more general. A new CONF
7686 configuration file reader "class" is implemented as well as a
7687 new functions (NCONF_*, for "New CONF") to handle it. The now
7688 old CONF_* functions are still there, but are reimplemented to
7689 work in terms of the new functions. Also, a set of functions
7690 to handle the internal storage of the configuration data is
7691 provided to make it easier to write new configuration file
7692 reader "classes" (I can definitely see something reading a
7693 configuration file in XML format, for example), called _CONF_*,
7694 or "the configuration storage API"...
7696 The new configuration file reading functions are:
7698 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7699 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7701 NCONF_default, NCONF_WIN32
7703 NCONF_dump_fp, NCONF_dump_bio
7705 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7706 NCONF_new creates a new CONF object. This works in the same way
7707 as other interfaces in OpenSSL, like the BIO interface.
7708 NCONF_dump_* dump the internal storage of the configuration file,
7709 which is useful for debugging. All other functions take the same
7710 arguments as the old CONF_* functions wth the exception of the
7711 first that must be a `CONF *' instead of a `LHASH *'.
7713 To make it easer to use the new classes with the old CONF_* functions,
7714 the function CONF_set_default_method is provided.
7717 *) Add '-tls1' option to 'openssl ciphers', which was already
7718 mentioned in the documentation but had not been implemented.
7719 (This option is not yet really useful because even the additional
7720 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7723 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7724 OpenSSL-based applications) load shared libraries and bind to
7725 them in a portable way.
7726 [Geoff Thorpe, with contributions from Richard Levitte]
7728 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7730 *) Make sure _lrotl and _lrotr are only used with MSVC.
7732 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7733 (the default implementation of RAND_status).
7735 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7736 to '-clrext' (= clear extensions), as intended and documented.
7737 [Bodo Moeller; inconsistency pointed out by Michael Attili
7740 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7741 was larger than the MD block size.
7742 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7744 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7745 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7746 using the passed key: if the passed key was a private key the result
7747 of X509_print(), for example, would be to print out all the private key
7751 *) des_quad_cksum() byte order bug fix.
7752 [Ulf Möller, using the problem description in krb4-0.9.7, where
7753 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7755 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7757 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7759 *) For easily testing in shell scripts whether some command
7760 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7761 returns with exit code 0 iff no command of the given name is available.
7762 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7763 the output goes to stdout and nothing is printed to stderr.
7764 Additional arguments are always ignored.
7766 Since for each cipher there is a command of the same name,
7767 the 'no-cipher' compilation switches can be tested this way.
7769 ('openssl no-XXX' is not able to detect pseudo-commands such
7770 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7773 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7776 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7777 is set; it will be thrown away anyway because each handshake creates
7779 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7780 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7781 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7782 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7785 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7786 'Q' and 'R' lose their special meanings (quit/renegotiate).
7787 This is part of what -quiet does; unlike -quiet, -ign_eof
7788 does not suppress any output.
7791 *) Add compatibility options to the purpose and trust code. The
7792 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7793 accepts a certificate or CA, this was the previous behaviour,
7794 with all the associated security issues.
7796 X509_TRUST_COMPAT is the old trust behaviour: only and
7797 automatically trust self signed roots in certificate store. A
7798 new trust setting X509_TRUST_DEFAULT is used to specify that
7799 a purpose has no associated trust setting and it should instead
7800 use the value in the default purpose.
7803 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7804 and fix a memory leak.
7807 *) In util/mkerr.pl (which implements 'make errors'), preserve
7808 reason strings from the previous version of the .c file, as
7809 the default to have only downcase letters (and digits) in
7810 automatically generated reasons codes is not always appropriate.
7813 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7814 using strerror. Previously, ERR_reason_error_string() returned
7815 library names as reason strings for SYSerr; but SYSerr is a special
7816 case where small numbers are errno values, not library numbers.
7819 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7820 converts DSA parameters into DH parameters. (When creating parameters,
7821 DSA_generate_parameters is used.)
7824 *) Include 'length' (recommended exponent length) in C code generated
7825 by 'openssl dhparam -C'.
7828 *) The second argument to set_label in perlasm was already being used
7829 so couldn't be used as a "file scope" flag. Moved to third argument
7833 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7834 instead of RAND_bytes for encryption IVs and salts.
7837 *) Include RAND_status() into RAND_METHOD instead of implementing
7838 it only for md_rand.c Otherwise replacing the PRNG by calling
7839 RAND_set_rand_method would be impossible.
7842 *) Don't let DSA_generate_key() enter an infinite loop if the random
7843 number generation fails.
7846 *) New 'rand' application for creating pseudo-random output.
7849 *) Added configuration support for Linux/IA64
7850 [Rolf Haberrecker <rolf@suse.de>]
7852 *) Assembler module support for Mingw32.
7855 *) Shared library support for HPUX (in shlib/).
7856 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7858 *) Shared library support for Solaris gcc.
7859 [Lutz Behnke <behnke@trustcenter.de>]
7861 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7863 *) PKCS7_encrypt() was adding text MIME headers twice because they
7864 were added manually and by SMIME_crlf_copy().
7867 *) In bntest.c don't call BN_rand with zero bits argument.
7868 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7870 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7871 case was implemented. This caused BN_div_recp() to fail occasionally.
7874 *) Add an optional second argument to the set_label() in the perl
7875 assembly language builder. If this argument exists and is set
7876 to 1 it signals that the assembler should use a symbol whose
7877 scope is the entire file, not just the current function. This
7878 is needed with MASM which uses the format label:: for this scope.
7879 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7881 *) Change the ASN1 types so they are typedefs by default. Before
7882 almost all types were #define'd to ASN1_STRING which was causing
7883 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7887 *) Change names of new functions to the new get1/get0 naming
7888 convention: After 'get1', the caller owns a reference count
7889 and has to call ..._free; 'get0' returns a pointer to some
7890 data structure without incrementing reference counters.
7891 (Some of the existing 'get' functions increment a reference
7892 counter, some don't.)
7893 Similarly, 'set1' and 'add1' functions increase reference
7894 counters or duplicate objects.
7897 *) Allow for the possibility of temp RSA key generation failure:
7898 the code used to assume it always worked and crashed on failure.
7901 *) Fix potential buffer overrun problem in BIO_printf().
7902 [Ulf Möller, using public domain code by Patrick Powell; problem
7903 pointed out by David Sacerdote <das33@cornell.edu>]
7905 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7906 RAND_egd() and RAND_status(). In the command line application,
7907 the EGD socket can be specified like a seed file using RANDFILE
7911 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7912 Some CAs (e.g. Verisign) distribute certificates in this form.
7915 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7916 list to exclude them. This means that no special compilation option
7917 is needed to use anonymous DH: it just needs to be included in the
7921 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7922 EVP_MD_type. The old functionality is available in a new macro called
7923 EVP_MD_md(). Change code that uses it and update docs.
7926 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7927 where the 'void *' argument is replaced by a function pointer argument.
7928 Previously 'void *' was abused to point to functions, which works on
7929 many platforms, but is not correct. As these functions are usually
7930 called by macros defined in OpenSSL header files, most source code
7931 should work without changes.
7934 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7935 sections with information on -D... compiler switches used for
7936 compiling the library so that applications can see them. To enable
7937 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7938 must be defined. E.g.,
7939 #define OPENSSL_ALGORITHM_DEFINES
7940 #include <openssl/opensslconf.h>
7941 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7942 [Richard Levitte, Ulf and Bodo Möller]
7944 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7948 *) Change the 'other' type in certificate aux info to a STACK_OF
7949 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7950 the required ASN1 format: arbitrary types determined by an OID.
7953 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7954 argument to 'req'. This is not because the function is newer or
7955 better than others it just uses the work 'NEW' in the certificate
7956 request header lines. Some software needs this.
7959 *) Reorganise password command line arguments: now passwords can be
7960 obtained from various sources. Delete the PEM_cb function and make
7961 it the default behaviour: i.e. if the callback is NULL and the
7962 usrdata argument is not NULL interpret it as a null terminated pass
7963 phrase. If usrdata and the callback are NULL then the pass phrase
7964 is prompted for as usual.
7967 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7968 the support is automatically enabled. The resulting binaries will
7969 autodetect the card and use it if present.
7970 [Ben Laurie and Compaq Inc.]
7972 *) Work around for Netscape hang bug. This sends certificate request
7973 and server done in one record. Since this is perfectly legal in the
7974 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7975 the bugs/SSLv3 entry for more info.
7978 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7981 *) Add -rand argument to smime and pkcs12 applications and read/write
7985 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7988 *) Add command line password options to the remaining applications.
7991 *) Bug fix for BN_div_recp() for numerators with an even number of
7995 *) More tests in bntest.c, and changed test_bn output.
7998 *) ./config recognizes MacOS X now.
8001 *) Bug fix for BN_div() when the first words of num and divsor are
8002 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8005 *) Add support for various broken PKCS#8 formats, and command line
8006 options to produce them.
8009 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8010 get temporary BIGNUMs from a BN_CTX.
8013 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8017 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8018 include a #define from the old name to the new. The original intent
8019 was that statically linked binaries could for example just call
8020 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8021 link with digests. This never worked becayse SSLeay_add_all_digests()
8022 and SSLeay_add_all_ciphers() were in the same source file so calling
8023 one would link with the other. They are now in separate source files.
8026 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8029 *) Use a less unusual form of the Miller-Rabin primality test (it used
8030 a binary algorithm for exponentiation integrated into the Miller-Rabin
8031 loop, our standard modexp algorithms are faster).
8034 *) Support for the EBCDIC character set completed.
8035 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8037 *) Source code cleanups: use const where appropriate, eliminate casts,
8038 use void * instead of char * in lhash.
8041 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8042 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8043 this the server could overwrite ephemeral keys that the client
8047 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8048 using 50 iterations of the Rabin-Miller test.
8050 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8051 iterations of the Rabin-Miller test as required by the appendix
8052 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8053 As BN_is_prime_fasttest includes trial division, DSA parameter
8054 generation becomes much faster.
8056 This implies a change for the callback functions in DSA_is_prime
8057 and DSA_generate_parameters: The callback function is called once
8058 for each positive witness in the Rabin-Miller test, not just
8059 occasionally in the inner loop; and the parameters to the
8060 callback function now provide an iteration count for the outer
8061 loop rather than for the current invocation of the inner loop.
8062 DSA_generate_parameters additionally can call the callback
8063 function with an 'iteration count' of -1, meaning that a
8064 candidate has passed the trial division test (when q is generated
8065 from an application-provided seed, trial division is skipped).
8068 *) New function BN_is_prime_fasttest that optionally does trial
8069 division before starting the Rabin-Miller test and has
8070 an additional BN_CTX * argument (whereas BN_is_prime always
8071 has to allocate at least one BN_CTX).
8072 'callback(1, -1, cb_arg)' is called when a number has passed the
8073 trial division stage.
8076 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8080 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8083 *) New function BN_pseudo_rand().
8086 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8087 bignum version of BN_from_montgomery() with the working code from
8088 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8092 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8093 made it impossible to use the same SSL_SESSION data structure in
8094 SSL2 clients in multiple threads.
8097 *) The return value of RAND_load_file() no longer counts bytes obtained
8098 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8099 to seed the PRNG (previously an explicit byte count was required).
8100 [Ulf Möller, Bodo Möller]
8102 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8103 used (char *) instead of (void *) and had casts all over the place.
8106 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8109 *) Retain source code compatibility for BN_prime_checks macro:
8110 BN_is_prime(..., BN_prime_checks, ...) now uses
8111 BN_prime_checks_for_size to determine the appropriate number of
8112 Rabin-Miller iterations.
8115 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8116 DH_CHECK_P_NOT_SAFE_PRIME.
8117 (Check if this is true? OpenPGP calls them "strong".)
8120 *) Merge the functionality of "dh" and "gendh" programs into a new program
8121 "dhparam". The old programs are retained for now but will handle DH keys
8122 (instead of parameters) in future.
8125 *) Make the ciphers, s_server and s_client programs check the return values
8126 when a new cipher list is set.
8129 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8130 ciphers. Before when the 56bit ciphers were enabled the sorting was
8133 The syntax for the cipher sorting has been extended to support sorting by
8134 cipher-strength (using the strength_bits hard coded in the tables).
8135 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8137 Fix a bug in the cipher-command parser: when supplying a cipher command
8138 string with an "undefined" symbol (neither command nor alphanumeric
8139 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8140 an error is flagged.
8142 Due to the strength-sorting extension, the code of the
8143 ssl_create_cipher_list() function was completely rearranged. I hope that
8144 the readability was also increased :-)
8145 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8147 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8148 for the first serial number and places 2 in the serial number file. This
8149 avoids problems when the root CA is created with serial number zero and
8150 the first user certificate has the same issuer name and serial number
8154 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8155 the new code. Add documentation for this stuff.
8158 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8159 X509_*() to X509at_*() on the grounds that they don't handle X509
8160 structures and behave in an analagous way to the X509v3 functions:
8161 they shouldn't be called directly but wrapper functions should be used
8164 So we also now have some wrapper functions that call the X509at functions
8165 when passed certificate requests. (TO DO: similar things can be done with
8166 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8167 things. Some of these need some d2i or i2d and print functionality
8168 because they handle more complex structures.)
8171 *) Add missing #ifndefs that caused missing symbols when building libssl
8172 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8173 NO_RSA in ssl/s2*.c.
8174 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8176 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8177 has a return value which indicates the quality of the random data
8178 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8179 error queue. New function RAND_pseudo_bytes() generates output that is
8180 guaranteed to be unique but not unpredictable. RAND_add is like
8181 RAND_seed, but takes an extra argument for an entropy estimate
8182 (RAND_seed always assumes full entropy).
8185 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8186 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8187 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8188 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8189 false-positive rate of at most 2^-80 for random input.
8192 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8195 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8196 in the 0.9.5 release), this returns the chain
8197 from an X509_CTX structure with a dup of the stack and all
8198 the X509 reference counts upped: so the stack will exist
8199 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8202 Also make SSL_SESSION_print() print out the verify return
8206 *) Add manpage for the pkcs12 command. Also change the default
8207 behaviour so MAC iteration counts are used unless the new
8208 -nomaciter option is used. This improves file security and
8209 only older versions of MSIE (4.0 for example) need it.
8212 *) Honor the no-xxx Configure options when creating .DEF files.
8215 *) Add PKCS#10 attributes to field table: challengePassword,
8216 unstructuredName and unstructuredAddress. These are taken from
8217 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8218 international characters are used.
8220 More changes to X509_ATTRIBUTE code: allow the setting of types
8221 based on strings. Remove the 'loc' parameter when adding
8222 attributes because these will be a SET OF encoding which is sorted
8226 *) Initial changes to the 'req' utility to allow request generation
8227 automation. This will allow an application to just generate a template
8228 file containing all the field values and have req construct the
8231 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8232 used all over the place including certificate requests and PKCS#7
8233 structures. They are currently handled manually where necessary with
8234 some primitive wrappers for PKCS#7. The new functions behave in a
8235 manner analogous to the X509 extension functions: they allow
8236 attributes to be looked up by NID and added.
8238 Later something similar to the X509V3 code would be desirable to
8239 automatically handle the encoding, decoding and printing of the
8240 more complex types. The string types like challengePassword can
8241 be handled by the string table functions.
8243 Also modified the multi byte string table handling. Now there is
8244 a 'global mask' which masks out certain types. The table itself
8245 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8246 is useful when for example there is only one permissible type
8247 (as in countryName) and using the mask might result in no valid
8251 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8252 SSL_get_peer_finished to allow applications to obtain the latest
8253 Finished messages sent to the peer or expected from the peer,
8254 respectively. (SSL_get_peer_finished is usually the Finished message
8255 actually received from the peer, otherwise the protocol will be aborted.)
8257 As the Finished message are message digests of the complete handshake
8258 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8259 be used for external authentication procedures when the authentication
8260 provided by SSL/TLS is not desired or is not enough.
8263 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8264 the host supports BWX extension and if Compaq C is present on the
8265 $PATH. Just exploiting of the BWX extension results in 20-30%
8266 performance kick for some algorithms, e.g. DES and RC4 to mention
8267 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8271 *) Add support for MS "fast SGC". This is arguably a violation of the
8272 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8273 weak crypto and after checking the certificate is SGC a second one
8274 with strong crypto. MS SGC stops the first handshake after receiving
8275 the server certificate message and sends a second client hello. Since
8276 a server will typically do all the time consuming operations before
8277 expecting any further messages from the client (server key exchange
8278 is the most expensive) there is little difference between the two.
8280 To get OpenSSL to support MS SGC we have to permit a second client
8281 hello message after we have sent server done. In addition we have to
8282 reset the MAC if we do get this second client hello.
8285 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8286 if a DER encoded private key is RSA or DSA traditional format. Changed
8287 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8288 format DER encoded private key. Newer code should use PKCS#8 format which
8289 has the key type encoded in the ASN1 structure. Added DER private key
8290 support to pkcs8 application.
8293 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8294 ciphersuites has been selected (as required by the SSL 3/TLS 1
8295 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8296 is set, we interpret this as a request to violate the specification
8297 (the worst that can happen is a handshake failure, and 'correct'
8298 behaviour would result in a handshake failure anyway).
8301 *) In SSL_CTX_add_session, take into account that there might be multiple
8302 SSL_SESSION structures with the same session ID (e.g. when two threads
8303 concurrently obtain them from an external cache).
8304 The internal cache can handle only one SSL_SESSION with a given ID,
8305 so if there's a conflict, we now throw out the old one to achieve
8309 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8310 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8311 some routines that use cipher OIDs: some ciphers do not have OIDs
8312 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8316 *) Simplify the trust setting structure and code. Now we just have
8317 two sequences of OIDs for trusted and rejected settings. These will
8318 typically have values the same as the extended key usage extension
8319 and any application specific purposes.
8321 The trust checking code now has a default behaviour: it will just
8322 check for an object with the same NID as the passed id. Functions can
8323 be provided to override either the default behaviour or the behaviour
8324 for a given id. SSL client, server and email already have functions
8325 in place for compatibility: they check the NID and also return "trusted"
8326 if the certificate is self signed.
8329 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8330 traditional format into an EVP_PKEY structure.
8333 *) Add a password callback function PEM_cb() which either prompts for
8334 a password if usr_data is NULL or otherwise assumes it is a null
8335 terminated password. Allow passwords to be passed on command line
8336 environment or config files in a few more utilities.
8339 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8340 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8341 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8342 Update documentation.
8345 *) Support for ASN1 "NULL" type. This could be handled before by using
8346 ASN1_TYPE but there wasn't any function that would try to read a NULL
8347 and produce an error if it couldn't. For compatibility we also have
8348 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8349 don't allocate anything because they don't need to.
8352 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8354 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8356 *) Rebuild of the memory allocation routines used by OpenSSL code and
8357 possibly others as well. The purpose is to make an interface that
8358 provide hooks so anyone can build a separate set of allocation and
8359 deallocation routines to be used by OpenSSL, for example memory
8360 pool implementations, or something else, which was previously hard
8361 since Malloc(), Realloc() and Free() were defined as macros having
8362 the values malloc, realloc and free, respectively (except for Win32
8363 compilations). The same is provided for memory debugging code.
8364 OpenSSL already comes with functionality to find memory leaks, but
8365 this gives people a chance to debug other memory problems.
8367 With these changes, a new set of functions and macros have appeared:
8369 CRYPTO_set_mem_debug_functions() [F]
8370 CRYPTO_get_mem_debug_functions() [F]
8371 CRYPTO_dbg_set_options() [F]
8372 CRYPTO_dbg_get_options() [F]
8373 CRYPTO_malloc_debug_init() [M]
8375 The memory debug functions are NULL by default, unless the library
8376 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8377 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8378 gives the standard debugging functions that come with OpenSSL) or
8379 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8380 provided by the library user) must be used. When the standard
8381 debugging functions are used, CRYPTO_dbg_set_options can be used to
8382 request additional information:
8383 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8384 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8386 Also, things like CRYPTO_set_mem_functions will always give the
8387 expected result (the new set of functions is used for allocation
8388 and deallocation) at all times, regardless of platform and compiler
8391 To finish it up, some functions that were never use in any other
8392 way than through macros have a new API and new semantic:
8395 CRYPTO_dbg_realloc()
8398 All macros of value have retained their old syntax.
8399 [Richard Levitte and Bodo Moeller]
8401 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8402 ordering of SMIMECapabilities wasn't in "strength order" and there
8403 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8407 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8408 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8409 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8411 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8412 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8413 functionality to handle multipart/signed properly) and a utility
8414 called 'smime' to call all this stuff. This is based on code I
8415 originally wrote for Celo who have kindly allowed it to be
8416 included in OpenSSL.
8419 *) Add variants des_set_key_checked and des_set_key_unchecked of
8420 des_set_key (aka des_key_sched). Global variable des_check_key
8421 decides which of these is called by des_set_key; this way
8422 des_check_key behaves as it always did, but applications and
8423 the library itself, which was buggy for des_check_key == 1,
8424 have a cleaner way to pick the version they need.
8427 *) New function PKCS12_newpass() which changes the password of a
8431 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8432 dynamic mix. In both cases the ids can be used as an index into the
8433 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8434 functions so they accept a list of the field values and the
8435 application doesn't need to directly manipulate the X509_TRUST
8439 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8443 *) Modify the way the V3 extension code looks up extensions. This now
8444 works in a similar way to the object code: we have some "standard"
8445 extensions in a static table which is searched with OBJ_bsearch()
8446 and the application can add dynamic ones if needed. The file
8447 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8448 updated whenever a new extension is added to the core code and kept
8449 in ext_nid order. There is a simple program 'tabtest.c' which checks
8450 this. New extensions are not added too often so this file can readily
8451 be maintained manually.
8453 There are two big advantages in doing things this way. The extensions
8454 can be looked up immediately and no longer need to be "added" using
8455 X509V3_add_standard_extensions(): this function now does nothing.
8456 [Side note: I get *lots* of email saying the extension code doesn't
8457 work because people forget to call this function]
8458 Also no dynamic allocation is done unless new extensions are added:
8459 so if we don't add custom extensions there is no need to call
8460 X509V3_EXT_cleanup().
8463 *) Modify enc utility's salting as follows: make salting the default. Add a
8464 magic header, so unsalted files fail gracefully instead of just decrypting
8465 to garbage. This is because not salting is a big security hole, so people
8466 should be discouraged from doing it.
8469 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8470 digest to be passed on the command line but it only used this
8471 parameter when signing a certificate. Modified so all relevant
8472 operations are affected by the digest parameter including the
8473 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8474 DSA key was used because it didn't fix the digest.
8477 *) Initial certificate chain verify code. Currently tests the untrusted
8478 certificates for consistency with the verify purpose (which is set
8479 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8481 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8482 this is because it will reject chains with invalid extensions whereas
8483 every previous version of OpenSSL and SSLeay made no checks at all.
8485 Trust code: checks the root CA for the relevant trust settings. Trust
8486 settings have an initial value consistent with the verify purpose: e.g.
8487 if the verify purpose is for SSL client use it expects the CA to be
8488 trusted for SSL client use. However the default value can be changed to
8489 permit custom trust settings: one example of this would be to only trust
8490 certificates from a specific "secure" set of CAs.
8492 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8493 which should be used for version portability: especially since the
8494 verify structure is likely to change more often now.
8496 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8497 to set them. If not set then assume SSL clients will verify SSL servers
8500 Two new options to the verify program: -untrusted allows a set of
8501 untrusted certificates to be passed in and -purpose which sets the
8502 intended purpose of the certificate. If a purpose is set then the
8503 new chain verify code is used to check extension consistency.
8506 *) Support for the authority information access extension.
8509 *) Modify RSA and DSA PEM read routines to transparently handle
8510 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8511 public keys in a format compatible with certificate
8512 SubjectPublicKeyInfo structures. Unfortunately there were already
8513 functions called *_PublicKey_* which used various odd formats so
8514 these are retained for compatibility: however the DSA variants were
8515 never in a public release so they have been deleted. Changed dsa/rsa
8516 utilities to handle the new format: note no releases ever handled public
8517 keys so we should be OK.
8519 The primary motivation for this change is to avoid the same fiasco
8520 that dogs private keys: there are several incompatible private key
8521 formats some of which are standard and some OpenSSL specific and
8522 require various evil hacks to allow partial transparent handling and
8523 even then it doesn't work with DER formats. Given the option anything
8524 other than PKCS#8 should be dumped: but the other formats have to
8525 stay in the name of compatibility.
8527 With public keys and the benefit of hindsight one standard format
8528 is used which works with EVP_PKEY, RSA or DSA structures: though
8529 it clearly returns an error if you try to read the wrong kind of key.
8531 Added a -pubkey option to the 'x509' utility to output the public key.
8532 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8533 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8534 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8535 that do the same as the EVP_PKEY_assign_*() except they up the
8536 reference count of the added key (they don't "swallow" the
8540 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8541 CRLs would fail if the file contained no certificates or no CRLs:
8542 added a new function to read in both types and return the number
8543 read: this means that if none are read it will be an error. The
8544 DER versions of the certificate and CRL reader would always fail
8545 because it isn't possible to mix certificates and CRLs in DER format
8546 without choking one or the other routine. Changed this to just read
8547 a certificate: this is the best we can do. Also modified the code
8548 in apps/verify.c to take notice of return codes: it was previously
8549 attempting to read in certificates from NULL pointers and ignoring
8550 any errors: this is one reason why the cert and CRL reader seemed
8551 to work. It doesn't check return codes from the default certificate
8552 routines: these may well fail if the certificates aren't installed.
8555 *) Code to support otherName option in GeneralName.
8558 *) First update to verify code. Change the verify utility
8559 so it warns if it is passed a self signed certificate:
8560 for consistency with the normal behaviour. X509_verify
8561 has been modified to it will now verify a self signed
8562 certificate if *exactly* the same certificate appears
8563 in the store: it was previously impossible to trust a
8564 single self signed certificate. This means that:
8565 openssl verify ss.pem
8566 now gives a warning about a self signed certificate but
8567 openssl verify -CAfile ss.pem ss.pem
8571 *) For servers, store verify_result in SSL_SESSION data structure
8572 (and add it to external session representation).
8573 This is needed when client certificate verifications fails,
8574 but an application-provided verification callback (set by
8575 SSL_CTX_set_cert_verify_callback) allows accepting the session
8576 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8577 but returns 1): When the session is reused, we have to set
8578 ssl->verify_result to the appropriate error code to avoid
8580 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8582 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8583 case in PKCS7_dataInit() where the signed PKCS7 structure
8584 didn't contain any existing data because it was being created.
8585 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8587 *) Add a salt to the key derivation routines in enc.c. This
8588 forms the first 8 bytes of the encrypted file. Also add a
8589 -S option to allow a salt to be input on the command line.
8592 *) New function X509_cmp(). Oddly enough there wasn't a function
8593 to compare two certificates. We do this by working out the SHA1
8594 hash and comparing that. X509_cmp() will be needed by the trust
8598 *) SSL_get1_session() is like SSL_get_session(), but increments
8599 the reference count in the SSL_SESSION returned.
8600 [Geoff Thorpe <geoff@eu.c2.net>]
8602 *) Fix for 'req': it was adding a null to request attributes.
8603 Also change the X509_LOOKUP and X509_INFO code to handle
8604 certificate auxiliary information.
8607 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8611 *) Add the possibility to add extra information to the memory leak
8612 detecting output, to form tracebacks, showing from where each
8613 allocation was originated: CRYPTO_push_info("constant string") adds
8614 the string plus current file name and line number to a per-thread
8615 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8616 is like calling CYRPTO_pop_info() until the stack is empty.
8617 Also updated memory leak detection code to be multi-thread-safe.
8620 *) Add options -text and -noout to pkcs7 utility and delete the
8621 encryption options which never did anything. Update docs.
8624 *) Add options to some of the utilities to allow the pass phrase
8625 to be included on either the command line (not recommended on
8626 OSes like Unix) or read from the environment. Update the
8627 manpages and fix a few bugs.
8630 *) Add a few manpages for some of the openssl commands.
8633 *) Fix the -revoke option in ca. It was freeing up memory twice,
8634 leaking and not finding already revoked certificates.
8637 *) Extensive changes to support certificate auxiliary information.
8638 This involves the use of X509_CERT_AUX structure and X509_AUX
8639 functions. An X509_AUX function such as PEM_read_X509_AUX()
8640 can still read in a certificate file in the usual way but it
8641 will also read in any additional "auxiliary information". By
8642 doing things this way a fair degree of compatibility can be
8643 retained: existing certificates can have this information added
8644 using the new 'x509' options.
8646 Current auxiliary information includes an "alias" and some trust
8647 settings. The trust settings will ultimately be used in enhanced
8648 certificate chain verification routines: currently a certificate
8649 can only be trusted if it is self signed and then it is trusted
8653 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8654 The problem was that one of the replacement routines had not been working
8655 since SSLeay releases. For now the offending routine has been replaced
8656 with non-optimised assembler. Even so, this now gives around 95%
8657 performance improvement for 1024 bit RSA signs.
8660 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8661 handling. Most clients have the effective key size in bits equal to
8662 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8663 A few however don't do this and instead use the size of the decrypted key
8664 to determine the RC2 key length and the AlgorithmIdentifier to determine
8665 the effective key length. In this case the effective key length can still
8666 be 40 bits but the key length can be 168 bits for example. This is fixed
8667 by manually forcing an RC2 key into the EVP_PKEY structure because the
8668 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8669 the key length and effective key length are equal.
8672 *) Add a bunch of functions that should simplify the creation of
8673 X509_NAME structures. Now you should be able to do:
8674 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8675 and have it automatically work out the correct field type and fill in
8676 the structures. The more adventurous can try:
8677 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8678 and it will (hopefully) work out the correct multibyte encoding.
8681 *) Change the 'req' utility to use the new field handling and multibyte
8682 copy routines. Before the DN field creation was handled in an ad hoc
8683 way in req, ca, and x509 which was rather broken and didn't support
8684 BMPStrings or UTF8Strings. Since some software doesn't implement
8685 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8686 using the dirstring_type option. See the new comment in the default
8687 openssl.cnf for more info.
8690 *) Make crypto/rand/md_rand.c more robust:
8691 - Assure unique random numbers after fork().
8692 - Make sure that concurrent threads access the global counter and
8693 md serializably so that we never lose entropy in them
8694 or use exactly the same state in multiple threads.
8695 Access to the large state is not always serializable because
8696 the additional locking could be a performance killer, and
8697 md should be large enough anyway.
8700 *) New file apps/app_rand.c with commonly needed functionality
8701 for handling the random seed file.
8703 Use the random seed file in some applications that previously did not:
8705 dsaparam -genkey (which also ignored its '-rand' option),
8708 x509 (when signing).
8709 Except on systems with /dev/urandom, it is crucial to have a random
8710 seed file at least for key creation, DSA signing, and for DH exchanges;
8711 for RSA signatures we could do without one.
8713 gendh and gendsa (unlike genrsa) used to read only the first byte
8714 of each file listed in the '-rand' option. The function as previously
8715 found in genrsa is now in app_rand.c and is used by all programs
8716 that support '-rand'.
8719 *) In RAND_write_file, use mode 0600 for creating files;
8720 don't just chmod when it may be too late.
8723 *) Report an error from X509_STORE_load_locations
8724 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8727 *) New function ASN1_mbstring_copy() this copies a string in either
8728 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8729 into an ASN1_STRING type. A mask of permissible types is passed
8730 and it chooses the "minimal" type to use or an error if not type
8734 *) Add function equivalents to the various macros in asn1.h. The old
8735 macros are retained with an M_ prefix. Code inside the library can
8736 use the M_ macros. External code (including the openssl utility)
8737 should *NOT* in order to be "shared library friendly".
8740 *) Add various functions that can check a certificate's extensions
8741 to see if it usable for various purposes such as SSL client,
8742 server or S/MIME and CAs of these types. This is currently
8743 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8744 verification. Also added a -purpose flag to x509 utility to
8745 print out all the purposes.
8748 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8752 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8753 for, obtain and decode and extension and obtain its critical flag.
8754 This allows all the necessary extension code to be handled in a
8755 single function call.
8758 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8759 platforms. See crypto/rc4/rc4_enc.c for further details.
8762 *) New -noout option to asn1parse. This causes no output to be produced
8763 its main use is when combined with -strparse and -out to extract data
8764 from a file (which may not be in ASN.1 format).
8767 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8768 when producing the local key id.
8769 [Richard Levitte <levitte@stacken.kth.se>]
8771 *) New option -dhparam in s_server. This allows a DH parameter file to be
8772 stated explicitly. If it is not stated then it tries the first server
8773 certificate file. The previous behaviour hard coded the filename
8777 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8778 a public key to be input or output. For example:
8779 openssl rsa -in key.pem -pubout -out pubkey.pem
8780 Also added necessary DSA public key functions to handle this.
8783 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8784 in the message. This was handled by allowing
8785 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8786 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8788 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8789 to the end of the strings whereas this didn't. This would cause problems
8790 if strings read with d2i_ASN1_bytes() were later modified.
8791 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8793 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8794 data and it contains EOF it will end up returning an error. This is
8795 caused by input 46 bytes long. The cause is due to the way base64
8796 BIOs find the start of base64 encoded data. They do this by trying a
8797 trial decode on each line until they find one that works. When they
8798 do a flag is set and it starts again knowing it can pass all the
8799 data directly through the decoder. Unfortunately it doesn't reset
8800 the context it uses. This means that if EOF is reached an attempt
8801 is made to pass two EOFs through the context and this causes the
8802 resulting error. This can also cause other problems as well. As is
8803 usual with these problems it takes *ages* to find and the fix is
8804 trivial: move one line.
8805 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8807 *) Ugly workaround to get s_client and s_server working under Windows. The
8808 old code wouldn't work because it needed to select() on sockets and the
8809 tty (for keypresses and to see if data could be written). Win32 only
8810 supports select() on sockets so we select() with a 1s timeout on the
8811 sockets and then see if any characters are waiting to be read, if none
8812 are present then we retry, we also assume we can always write data to
8813 the tty. This isn't nice because the code then blocks until we've
8814 received a complete line of data and it is effectively polling the
8815 keyboard at 1s intervals: however it's quite a bit better than not
8816 working at all :-) A dedicated Windows application might handle this
8817 with an event loop for example.
8820 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8821 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8822 will be called when RSA_sign() and RSA_verify() are used. This is useful
8823 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8824 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8825 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8826 This necessitated the support of an extra signature type NID_md5_sha1
8827 for SSL signatures and modifications to the SSL library to use it instead
8828 of calling RSA_public_decrypt() and RSA_private_encrypt().
8831 *) Add new -verify -CAfile and -CApath options to the crl program, these
8832 will lookup a CRL issuers certificate and verify the signature in a
8833 similar way to the verify program. Tidy up the crl program so it
8834 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8835 less strict. It will now permit CRL extensions even if it is not
8836 a V2 CRL: this will allow it to tolerate some broken CRLs.
8839 *) Initialize all non-automatic variables each time one of the openssl
8840 sub-programs is started (this is necessary as they may be started
8841 multiple times from the "OpenSSL>" prompt).
8842 [Lennart Bang, Bodo Moeller]
8844 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8845 removing all other RSA functionality (this is what NO_RSA does). This
8846 is so (for example) those in the US can disable those operations covered
8847 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8851 *) Non-copying interface to BIO pairs.
8852 (still largely untested)
8855 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8856 ASCII string. This was handled independently in various places before.
8859 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8860 UTF8 strings a character at a time.
8863 *) Use client_version from client hello to select the protocol
8864 (s23_srvr.c) and for RSA client key exchange verification
8865 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8868 *) Add various utility functions to handle SPKACs, these were previously
8869 handled by poking round in the structure internals. Added new function
8870 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8871 print, verify and generate SPKACs. Based on an original idea from
8872 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8875 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8878 *) Allow the config file extension section to be overwritten on the
8879 command line. Based on an original idea from Massimiliano Pala
8880 <madwolf@comune.modena.it>. The new option is called -extensions
8881 and can be applied to ca, req and x509. Also -reqexts to override
8882 the request extensions in req and -crlexts to override the crl extensions
8886 *) Add new feature to the SPKAC handling in ca. Now you can include
8887 the same field multiple times by preceding it by "XXXX." for example:
8890 this is the same syntax as used in the req config file.
8893 *) Allow certificate extensions to be added to certificate requests. These
8894 are specified in a 'req_extensions' option of the req section of the
8895 config file. They can be printed out with the -text option to req but
8896 are otherwise ignored at present.
8899 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8900 data read consists of only the final block it would not decrypted because
8901 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8902 A misplaced 'break' also meant the decrypted final block might not be
8903 copied until the next read.
8906 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8907 a few extra parameters to the DH structure: these will be useful if
8908 for example we want the value of 'q' or implement X9.42 DH.
8911 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8912 provides hooks that allow the default DSA functions or functions on a
8913 "per key" basis to be replaced. This allows hardware acceleration and
8914 hardware key storage to be handled without major modification to the
8915 library. Also added low level modexp hooks and CRYPTO_EX structure and
8916 associated functions.
8919 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8920 as "read only": it can't be written to and the buffer it points to will
8921 not be freed. Reading from a read only BIO is much more efficient than
8922 a normal memory BIO. This was added because there are several times when
8923 an area of memory needs to be read from a BIO. The previous method was
8924 to create a memory BIO and write the data to it, this results in two
8925 copies of the data and an O(n^2) reading algorithm. There is a new
8926 function BIO_new_mem_buf() which creates a read only memory BIO from
8927 an area of memory. Also modified the PKCS#7 routines to use read only
8931 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8932 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8933 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8934 but a retry condition occured while trying to read the rest.
8937 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8938 NID_pkcs7_encrypted by default: this was wrong since this should almost
8939 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8940 the encrypted data type: this is a more sensible place to put it and it
8941 allows the PKCS#12 code to be tidied up that duplicated this
8945 *) Changed obj_dat.pl script so it takes its input and output files on
8946 the command line. This should avoid shell escape redirection problems
8950 *) Initial support for certificate extension requests, these are included
8951 in things like Xenroll certificate requests. Included functions to allow
8952 extensions to be obtained and added.
8955 *) -crlf option to s_client and s_server for sending newlines as
8956 CRLF (as required by many protocols).
8959 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8961 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8962 [Ralf S. Engelschall]
8964 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8965 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8967 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8971 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8972 DH parameters/keys (q is lost during that conversion, but the resulting
8973 DH parameters contain its length).
8975 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8976 much faster than DH_generate_parameters (which creates parameters
8977 where p = 2*q + 1), and also the smaller q makes DH computations
8978 much more efficient (160-bit exponentiation instead of 1024-bit
8979 exponentiation); so this provides a convenient way to support DHE
8980 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8981 utter importance to use
8982 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8984 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8985 when such DH parameters are used, because otherwise small subgroup
8986 attacks may become possible!
8989 *) Avoid memory leak in i2d_DHparams.
8992 *) Allow the -k option to be used more than once in the enc program:
8993 this allows the same encrypted message to be read by multiple recipients.
8996 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8997 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8998 it will always use the numerical form of the OID, even if it has a short
9002 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9003 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9004 otherwise bn_mod_exp was called. In the case of hardware keys for example
9005 no private key components need be present and it might store extra data
9006 in the RSA structure, which cannot be accessed from bn_mod_exp.
9007 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9008 private key operations.
9011 *) Added support for SPARC Linux.
9014 *) pem_password_cb function type incompatibly changed from
9015 typedef int pem_password_cb(char *buf, int size, int rwflag);
9017 ....(char *buf, int size, int rwflag, void *userdata);
9018 so that applications can pass data to their callbacks:
9019 The PEM[_ASN1]_{read,write}... functions and macros now take an
9020 additional void * argument, which is just handed through whenever
9021 the password callback is called.
9022 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9024 New function SSL_CTX_set_default_passwd_cb_userdata.
9026 Compatibility note: As many C implementations push function arguments
9027 onto the stack in reverse order, the new library version is likely to
9028 interoperate with programs that have been compiled with the old
9029 pem_password_cb definition (PEM_whatever takes some data that
9030 happens to be on the stack as its last argument, and the callback
9031 just ignores this garbage); but there is no guarantee whatsoever that
9034 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9035 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9036 problems not only on Windows, but also on some Unix platforms.
9037 To avoid problematic command lines, these definitions are now in an
9038 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9039 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9042 *) MIPS III/IV assembler module is reimplemented.
9045 *) More DES library cleanups: remove references to srand/rand and
9046 delete an unused file.
9049 *) Add support for the the free Netwide assembler (NASM) under Win32,
9050 since not many people have MASM (ml) and it can be hard to obtain.
9051 This is currently experimental but it seems to work OK and pass all
9052 the tests. Check out INSTALL.W32 for info.
9055 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9056 without temporary keys kept an extra copy of the server key,
9057 and connections with temporary keys did not free everything in case
9061 *) New function RSA_check_key and new openssl rsa option -check
9062 for verifying the consistency of RSA keys.
9063 [Ulf Moeller, Bodo Moeller]
9065 *) Various changes to make Win32 compile work:
9066 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9067 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9068 comparison" warnings.
9069 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9072 *) Add a debugging option to PKCS#5 v2 key generation function: when
9073 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9074 derived keys are printed to stderr.
9077 *) Copy the flags in ASN1_STRING_dup().
9078 [Roman E. Pavlov <pre@mo.msk.ru>]
9080 *) The x509 application mishandled signing requests containing DSA
9081 keys when the signing key was also DSA and the parameters didn't match.
9083 It was supposed to omit the parameters when they matched the signing key:
9084 the verifying software was then supposed to automatically use the CA's
9085 parameters if they were absent from the end user certificate.
9087 Omitting parameters is no longer recommended. The test was also
9088 the wrong way round! This was probably due to unusual behaviour in
9089 EVP_cmp_parameters() which returns 1 if the parameters match.
9090 This meant that parameters were omitted when they *didn't* match and
9091 the certificate was useless. Certificates signed with 'ca' didn't have
9093 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9095 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9096 The interface is as follows:
9097 Applications can use
9098 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9099 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9100 "off" is now the default.
9101 The library internally uses
9102 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9103 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9104 to disable memory-checking temporarily.
9106 Some inconsistent states that previously were possible (and were
9107 even the default) are now avoided.
9109 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9110 with each memory chunk allocated; this is occasionally more helpful
9111 than just having a counter.
9113 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9115 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9119 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9120 which largely parallels "options", but is for changing API behaviour,
9121 whereas "options" are about protocol behaviour.
9122 Initial "mode" flags are:
9124 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9125 a single record has been written.
9126 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9127 retries use the same buffer location.
9128 (But all of the contents must be
9132 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9135 *) Fix problems with no-hmac etc.
9136 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9138 *) New functions RSA_get_default_method(), RSA_set_method() and
9139 RSA_get_method(). These allows replacement of RSA_METHODs without having
9140 to mess around with the internals of an RSA structure.
9143 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9144 Also really enable memory leak checks in openssl.c and in some
9146 [Chad C. Mulligan, Bodo Moeller]
9148 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9149 up the length of negative integers. This has now been simplified to just
9150 store the length when it is first determined and use it later, rather
9151 than trying to keep track of where data is copied and updating it to
9153 [Steve Henson, reported by Brien Wheeler
9154 <bwheeler@authentica-security.com>]
9156 *) Add a new function PKCS7_signatureVerify. This allows the verification
9157 of a PKCS#7 signature but with the signing certificate passed to the
9158 function itself. This contrasts with PKCS7_dataVerify which assumes the
9159 certificate is present in the PKCS#7 structure. This isn't always the
9160 case: certificates can be omitted from a PKCS#7 structure and be
9161 distributed by "out of band" means (such as a certificate database).
9164 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9165 function prototypes in pem.h, also change util/mkdef.pl to add the
9166 necessary function names.
9169 *) mk1mf.pl (used by Windows builds) did not properly read the
9170 options set by Configure in the top level Makefile, and Configure
9171 was not even able to write more than one option correctly.
9172 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9175 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9176 file to be loaded from a BIO or FILE pointer. The BIO version will
9177 for example allow memory BIOs to contain config info.
9180 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9181 Whoever hopes to achieve shared-library compatibility across versions
9182 must use this, not the compile-time macro.
9183 (Exercise 0.9.4: Which is the minimum library version required by
9185 Note: All this applies only to multi-threaded programs, others don't
9189 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9190 through a BIO pair triggered the default case, i.e.
9191 SSLerr(...,SSL_R_UNKNOWN_STATE).
9194 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9195 can use the SSL library even if none of the specific BIOs is
9199 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9200 for the encoded length.
9201 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9203 *) Add initial documentation of the X509V3 functions.
9206 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9207 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9208 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9209 secure PKCS#8 private key format with a high iteration count.
9212 *) Fix determination of Perl interpreter: A perl or perl5
9213 _directory_ in $PATH was also accepted as the interpreter.
9214 [Ralf S. Engelschall]
9216 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9217 wrong with it but it was very old and did things like calling
9218 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9222 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9223 to use the new extension code.
9226 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9227 with macros. This should make it easier to change their form, add extra
9228 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9232 *) Add to configuration table a new entry that can specify an alternative
9233 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9234 according to Mark Crispin <MRC@Panda.COM>.
9238 *) DES CBC did not update the IV. Weird.
9241 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9242 Changing the behaviour of the former might break existing programs --
9243 where IV updating is needed, des_ncbc_encrypt can be used.
9246 *) When bntest is run from "make test" it drives bc to check its
9247 calculations, as well as internally checking them. If an internal check
9248 fails, it needs to cause bc to give a non-zero result or make test carries
9249 on without noticing the failure. Fixed.
9252 *) DES library cleanups.
9255 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9256 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9257 ciphers. NOTE: although the key derivation function has been verified
9258 against some published test vectors it has not been extensively tested
9259 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9263 *) Instead of "mkdir -p", which is not fully portable, use new
9264 Perl script "util/mkdir-p.pl".
9267 *) Rewrite the way password based encryption (PBE) is handled. It used to
9268 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9269 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9270 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9271 the 'parameter' field of the AlgorithmIdentifier is passed to the
9272 underlying key generation function so it must do its own ASN1 parsing.
9273 This has also changed the EVP_PBE_CipherInit() function which now has a
9274 'parameter' argument instead of literal salt and iteration count values
9275 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9278 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9279 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9280 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9281 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9282 value was just used as a "magic string" and not used directly its
9283 value doesn't matter.
9286 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9290 *) "linux-sparc64" configuration (ultrapenguin).
9291 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9292 "linux-sparc" configuration.
9293 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9295 *) config now generates no-xxx options for missing ciphers.
9298 *) Support the EBCDIC character set (work in progress).
9299 File ebcdic.c not yet included because it has a different license.
9300 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9302 *) Support BS2000/OSD-POSIX.
9303 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9305 *) Make callbacks for key generation use void * instead of char *.
9308 *) Make S/MIME samples compile (not yet tested).
9311 *) Additional typesafe stacks.
9314 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9318 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9320 *) New configuration variant "sco5-gcc".
9322 *) Updated some demos.
9323 [Sean O Riordain, Wade Scholine]
9325 *) Add missing BIO_free at exit of pkcs12 application.
9328 *) Fix memory leak in conf.c.
9331 *) Updates for Win32 to assembler version of MD5.
9334 *) Set #! path to perl in apps/der_chop to where we found it
9335 instead of using a fixed path.
9338 *) SHA library changes for irix64-mips4-cc.
9341 *) Improvements for VMS support.
9345 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9347 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9348 This also avoids the problems with SC4.2 and unpatched SC5.
9349 [Andy Polyakov <appro@fy.chalmers.se>]
9351 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9352 These are required because of the typesafe stack would otherwise break
9353 existing code. If old code used a structure member which used to be STACK
9354 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9355 sk_num or sk_value it would produce an error because the num, data members
9356 are not present in STACK_OF. Now it just produces a warning. sk_set
9357 replaces the old method of assigning a value to sk_value
9358 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9359 that does this will no longer work (and should use sk_set instead) but
9360 this could be regarded as a "questionable" behaviour anyway.
9363 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9364 correctly handle encrypted S/MIME data.
9367 *) Change type of various DES function arguments from des_cblock
9368 (which means, in function argument declarations, pointer to char)
9369 to des_cblock * (meaning pointer to array with 8 char elements),
9370 which allows the compiler to do more typechecking; it was like
9371 that back in SSLeay, but with lots of ugly casts.
9373 Introduce new type const_des_cblock.
9376 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9377 problems: find RecipientInfo structure that matches recipient certificate
9378 and initialise the ASN1 structures properly based on passed cipher.
9381 *) Belatedly make the BN tests actually check the results.
9384 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9385 to and from BNs: it was completely broken. New compilation option
9386 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9387 key elements as negative integers.
9390 *) Reorganize and speed up MD5.
9391 [Andy Polyakov <appro@fy.chalmers.se>]
9394 [Richard Levitte <richard@levitte.org>]
9396 *) New option -out to asn1parse to allow the parsed structure to be
9397 output to a file. This is most useful when combined with the -strparse
9398 option to examine the output of things like OCTET STRINGS.
9401 *) Make SSL library a little more fool-proof by not requiring any longer
9402 that SSL_set_{accept,connect}_state be called before
9403 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9404 in many applications because usually everything *appeared* to work as
9405 intended anyway -- now it really works as intended).
9408 *) Move openssl.cnf out of lib/.
9411 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9412 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9413 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9414 [Ralf S. Engelschall]
9416 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9417 handle PKCS#7 enveloped data properly.
9418 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9420 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9421 copying pointers. The cert_st handling is changed by this in
9422 various ways (and thus what used to be known as ctx->default_cert
9423 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9424 any longer when s->cert does not give us what we need).
9425 ssl_cert_instantiate becomes obsolete by this change.
9426 As soon as we've got the new code right (possibly it already is?),
9427 we have solved a couple of bugs of the earlier code where s->cert
9428 was used as if it could not have been shared with other SSL structures.
9430 Note that using the SSL API in certain dirty ways now will result
9431 in different behaviour than observed with earlier library versions:
9432 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9433 does not influence s as it used to.
9435 In order to clean up things more thoroughly, inside SSL_SESSION
9436 we don't use CERT any longer, but a new structure SESS_CERT
9437 that holds per-session data (if available); currently, this is
9438 the peer's certificate chain and, for clients, the server's certificate
9439 and temporary key. CERT holds only those values that can have
9440 meaningful defaults in an SSL_CTX.
9443 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9444 from the internal representation. Various PKCS#7 fixes: remove some
9445 evil casts and set the enc_dig_alg field properly based on the signing
9449 *) Allow PKCS#12 password to be set from the command line or the
9450 environment. Let 'ca' get its config file name from the environment
9451 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9455 *) Allow certificate policies extension to use an IA5STRING for the
9456 organization field. This is contrary to the PKIX definition but
9457 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9461 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9462 without disallowing inline assembler and the like for non-pedantic builds.
9465 *) Support Borland C++ builder.
9466 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9471 *) SHA-1 cleanups and performance enhancements.
9472 [Andy Polyakov <appro@fy.chalmers.se>]
9474 *) Sparc v8plus assembler for the bignum library.
9475 [Andy Polyakov <appro@fy.chalmers.se>]
9477 *) Accept any -xxx and +xxx compiler options in Configure.
9480 *) Update HPUX configuration.
9483 *) Add missing sk_<type>_unshift() function to safestack.h
9484 [Ralf S. Engelschall]
9486 *) New function SSL_CTX_use_certificate_chain_file that sets the
9487 "extra_cert"s in addition to the certificate. (This makes sense
9488 only for "PEM" format files, as chains as a whole are not
9492 *) Support verify_depth from the SSL API.
9493 x509_vfy.c had what can be considered an off-by-one-error:
9494 Its depth (which was not part of the external interface)
9495 was actually counting the number of certificates in a chain;
9496 now it really counts the depth.
9499 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9500 instead of X509err, which often resulted in confusing error
9501 messages since the error codes are not globally unique
9502 (e.g. an alleged error in ssl3_accept when a certificate
9503 didn't match the private key).
9505 *) New function SSL_CTX_set_session_id_context that allows to set a default
9506 value (so that you don't need SSL_set_session_id_context for each
9507 connection using the SSL_CTX).
9510 *) OAEP decoding bug fix.
9513 *) Support INSTALL_PREFIX for package builders, as proposed by
9517 *) New Configure options "threads" and "no-threads". For systems
9518 where the proper compiler options are known (currently Solaris
9519 and Linux), "threads" is the default.
9522 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9525 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9526 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9527 such as /usr/local/bin.
9530 *) "make linux-shared" to build shared libraries.
9531 [Niels Poppe <niels@netbox.org>]
9533 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9536 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9537 extension adding in x509 utility.
9540 *) Remove NOPROTO sections and error code comments.
9543 *) Partial rewrite of the DEF file generator to now parse the ANSI
9547 *) New Configure options --prefix=DIR and --openssldir=DIR.
9550 *) Complete rewrite of the error code script(s). It is all now handled
9551 by one script at the top level which handles error code gathering,
9552 header rewriting and C source file generation. It should be much better
9553 than the old method: it now uses a modified version of Ulf's parser to
9554 read the ANSI prototypes in all header files (thus the old K&R definitions
9555 aren't needed for error creation any more) and do a better job of
9556 translating function codes into names. The old 'ASN1 error code imbedded
9557 in a comment' is no longer necessary and it doesn't use .err files which
9558 have now been deleted. Also the error code call doesn't have to appear all
9559 on one line (which resulted in some large lines...).
9562 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9565 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9566 0 (which usually indicates a closed connection), but continue reading.
9569 *) Fix some race conditions.
9572 *) Add support for CRL distribution points extension. Add Certificate
9573 Policies and CRL distribution points documentation.
9576 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9579 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9580 8 of keying material. Merlin has also confirmed interop with this fix
9581 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9582 [Merlin Hughes <merlin@baltimore.ie>]
9584 *) Fix lots of warnings.
9585 [Richard Levitte <levitte@stacken.kth.se>]
9587 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9588 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9589 [Richard Levitte <levitte@stacken.kth.se>]
9591 *) Fix problems with sizeof(long) == 8.
9592 [Andy Polyakov <appro@fy.chalmers.se>]
9594 *) Change functions to ANSI C.
9597 *) Fix typos in error codes.
9598 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9600 *) Remove defunct assembler files from Configure.
9603 *) SPARC v8 assembler BIGNUM implementation.
9604 [Andy Polyakov <appro@fy.chalmers.se>]
9606 *) Support for Certificate Policies extension: both print and set.
9607 Various additions to support the r2i method this uses.
9610 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9611 return a const string when you are expecting an allocated buffer.
9614 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9615 types DirectoryString and DisplayText.
9618 *) Add code to allow r2i extensions to access the configuration database,
9619 add an LHASH database driver and add several ctx helper functions.
9622 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9623 fail when they extended the size of a BIGNUM.
9626 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9627 support typesafe stack.
9630 *) Fix typo in SSL_[gs]et_options().
9631 [Nils Frostberg <nils@medcom.se>]
9633 *) Delete various functions and files that belonged to the (now obsolete)
9634 old X509V3 handling code.
9637 *) New Configure option "rsaref".
9640 *) Don't auto-generate pem.h.
9643 *) Introduce type-safe ASN.1 SETs.
9646 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9647 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9649 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9650 that links with OpenSSL (well at least cause lots of warnings), but fear
9651 not: the conversion is trivial, and it eliminates loads of evil casts. A
9652 few STACKed things have been converted already. Feel free to convert more.
9653 In the fullness of time, I'll do away with the STACK type altogether.
9656 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9657 specified in <certfile> by updating the entry in the index.txt file.
9658 This way one no longer has to edit the index.txt file manually for
9659 revoking a certificate. The -revoke option does the gory details now.
9660 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9662 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9663 `-text' option at all and this way the `-noout -text' combination was
9664 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9665 [Ralf S. Engelschall]
9667 *) Make sure a corresponding plain text error message exists for the
9668 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9669 verify callback function determined that a certificate was revoked.
9670 [Ralf S. Engelschall]
9672 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9673 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9674 all available cipers including rc5, which was forgotten until now.
9675 In order to let the testing shell script know which algorithms
9676 are available, a new (up to now undocumented) command
9677 "openssl list-cipher-commands" is used.
9680 *) Bugfix: s_client occasionally would sleep in select() when
9681 it should have checked SSL_pending() first.
9684 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9685 the raw DSA values prior to ASN.1 encoding.
9688 *) Tweaks to Configure
9689 [Niels Poppe <niels@netbox.org>]
9691 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9695 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9698 *) New config option to avoid instructions that are illegal on the 80386.
9699 The default code is faster, but requires at least a 486.
9702 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9703 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9704 same as SSL2_VERSION anyway.
9707 *) New "-showcerts" option for s_client.
9710 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9711 application. Various cleanups and fixes.
9714 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9715 modify error routines to work internally. Add error codes and PBE init
9716 to library startup routines.
9719 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9720 packing functions to asn1 and evp. Changed function names and error
9721 codes along the way.
9724 *) PKCS12 integration: and so it begins... First of several patches to
9725 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9726 objects to objects.h
9729 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9730 and display support for Thawte strong extranet extension.
9733 *) Add LinuxPPC support.
9734 [Jeff Dubrule <igor@pobox.org>]
9736 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9737 bn_div_words in alpha.s.
9738 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9740 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9741 OAEP isn't supported when OpenSSL is built with RSAref.
9742 [Ulf Moeller <ulf@fitug.de>]
9744 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9745 so they no longer are missing under -DNOPROTO.
9746 [Soren S. Jorvang <soren@t.dk>]
9749 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9751 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9752 doesn't work when the session is reused. Coming soon!
9755 *) Fix a security hole, that allows sessions to be reused in the wrong
9756 context thus bypassing client cert protection! All software that uses
9757 client certs and session caches in multiple contexts NEEDS PATCHING to
9758 allow session reuse! A fuller solution is in the works.
9759 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9761 *) Some more source tree cleanups (removed obsolete files
9762 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9763 permission on "config" script to be executable) and a fix for the INSTALL
9765 [Ulf Moeller <ulf@fitug.de>]
9767 *) Remove some legacy and erroneous uses of malloc, free instead of
9769 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9771 *) Make rsa_oaep_test return non-zero on error.
9772 [Ulf Moeller <ulf@fitug.de>]
9774 *) Add support for native Solaris shared libraries. Configure
9775 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9776 if someone would make that last step automatic.
9777 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9779 *) ctx_size was not built with the right compiler during "make links". Fixed.
9782 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9783 except NULL ciphers". This means the default cipher list will no longer
9784 enable NULL ciphers. They need to be specifically enabled e.g. with
9785 the string "DEFAULT:eNULL".
9788 *) Fix to RSA private encryption routines: if p < q then it would
9789 occasionally produce an invalid result. This will only happen with
9790 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9793 *) Be less restrictive and allow also `perl util/perlpath.pl
9794 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9795 because this way one can also use an interpreter named `perl5' (which is
9796 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9797 installed as `perl').
9798 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9800 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9801 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9803 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9804 advapi32.lib to Win32 build and change the pem test comparision
9805 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9806 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9807 and crypto/des/ede_cbcm_enc.c.
9810 *) DES quad checksum was broken on big-endian architectures. Fixed.
9813 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9814 Win32 test batch file so it (might) work again. The Win32 test batch file
9815 is horrible: I feel ill....
9818 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9819 in e_os.h. Audit of header files to check ANSI and non ANSI
9820 sections: 10 functions were absent from non ANSI section and not exported
9821 from Windows DLLs. Fixed up libeay.num for new functions.
9824 *) Make `openssl version' output lines consistent.
9825 [Ralf S. Engelschall]
9827 *) Fix Win32 symbol export lists for BIO functions: Added
9828 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9829 to ms/libeay{16,32}.def.
9830 [Ralf S. Engelschall]
9832 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9833 fine under Unix and passes some trivial tests I've now added. But the
9834 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9835 added to make sure no one expects that this stuff really works in the
9836 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9837 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9839 [Ralf S. Engelschall]
9841 *) Fix the generation of two part addresses in perl.
9842 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9844 *) Add config entry for Linux on MIPS.
9845 [John Tobey <jtobey@channel1.com>]
9847 *) Make links whenever Configure is run, unless we are on Windoze.
9850 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9851 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9855 *) Add a useful kludge to allow package maintainers to specify compiler and
9856 other platforms details on the command line without having to patch the
9857 Configure script everytime: One now can use ``perl Configure
9858 <id>:<details>'', i.e. platform ids are allowed to have details appended
9859 to them (seperated by colons). This is treated as there would be a static
9860 pre-configured entry in Configure's %table under key <id> with value
9861 <details> and ``perl Configure <id>'' is called. So, when you want to
9862 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9863 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9864 now, which overrides the FreeBSD-elf entry on-the-fly.
9865 [Ralf S. Engelschall]
9867 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9870 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9871 on the `perl Configure ...' command line. This way one can compile
9872 OpenSSL libraries with Position Independent Code (PIC) which is needed
9873 for linking it into DSOs.
9874 [Ralf S. Engelschall]
9876 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9880 *) Cleaned up the LICENSE document: The official contact for any license
9881 questions now is the OpenSSL core team under openssl-core@openssl.org.
9882 And add a paragraph about the dual-license situation to make sure people
9883 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9884 to the OpenSSL toolkit.
9885 [Ralf S. Engelschall]
9887 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9888 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9889 Additonally cleaned up the `make links' target: Remove unnecessary
9890 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9891 to speed processing and no longer clutter the display with confusing
9892 stuff. Instead only the actually done links are displayed.
9893 [Ralf S. Engelschall]
9895 *) Permit null encryption ciphersuites, used for authentication only. It used
9896 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9897 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9901 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9902 signed attributes when verifying signatures (this would break them),
9903 the detached data encoding was wrong and public keys obtained using
9904 X509_get_pubkey() weren't freed.
9907 *) Add text documentation for the BUFFER functions. Also added a work around
9908 to a Win95 console bug. This was triggered by the password read stuff: the
9909 last character typed gets carried over to the next fread(). If you were
9910 generating a new cert request using 'req' for example then the last
9911 character of the passphrase would be CR which would then enter the first
9915 *) Added the new `Includes OpenSSL Cryptography Software' button as
9916 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9917 button and can be used by applications based on OpenSSL to show the
9918 relationship to the OpenSSL project.
9919 [Ralf S. Engelschall]
9921 *) Remove confusing variables in function signatures in files
9922 ssl/ssl_lib.c and ssl/ssl.h.
9923 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9925 *) Don't install bss_file.c under PREFIX/include/
9926 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9928 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9929 functions that return function pointers and has support for NT specific
9930 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9931 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9932 unsigned to signed types: this was killing the Win32 compile.
9935 *) Add new certificate file to stack functions,
9936 SSL_add_dir_cert_subjects_to_stack() and
9937 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9938 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9939 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9940 This means that Apache-SSL and similar packages don't have to mess around
9941 to add as many CAs as they want to the preferred list.
9944 *) Experiment with doxygen documentation. Currently only partially applied to
9946 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9947 openssl.doxy as the configuration file.
9950 *) Get rid of remaining C++-style comments which strict C compilers hate.
9951 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9953 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9954 compiled in by default: it has problems with large keys.
9957 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9958 DH private keys and/or callback functions which directly correspond to
9959 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9960 is needed for applications which have to configure certificates on a
9961 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9963 For the RSA certificate situation is makes no difference, but
9964 for the DSA certificate situation this fixes the "no shared cipher"
9965 problem where the OpenSSL cipher selection procedure failed because the
9966 temporary keys were not overtaken from the context and the API provided
9967 no way to reconfigure them.
9968 The new functions now let applications reconfigure the stuff and they
9969 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9970 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9971 non-public-API function ssl_cert_instantiate() is used as a helper
9972 function and also to reduce code redundancy inside ssl_rsa.c.
9973 [Ralf S. Engelschall]
9975 *) Move s_server -dcert and -dkey options out of the undocumented feature
9976 area because they are useful for the DSA situation and should be
9977 recognized by the users.
9978 [Ralf S. Engelschall]
9980 *) Fix the cipher decision scheme for export ciphers: the export bits are
9981 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9982 SSL_EXP_MASK. So, the original variable has to be used instead of the
9983 already masked variable.
9984 [Richard Levitte <levitte@stacken.kth.se>]
9986 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9987 [Richard Levitte <levitte@stacken.kth.se>]
9989 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9990 from `int' to `unsigned int' because it's a length and initialized by
9991 EVP_DigestFinal() which expects an `unsigned int *'.
9992 [Richard Levitte <levitte@stacken.kth.se>]
9994 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9995 script. Instead use the usual Shell->Perl transition trick.
9996 [Ralf S. Engelschall]
9998 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9999 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10000 -noout -modulus' as it's already the case for `openssl rsa -noout
10001 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10002 currently the public key is printed (a decision which was already done by
10003 `openssl dsa -modulus' in the past) which serves a similar purpose.
10004 Additionally the NO_RSA no longer completely removes the whole -modulus
10005 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10007 [Ralf S. Engelschall]
10009 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10010 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10011 [Arne Ansper <arne@ats.cyber.ee>]
10013 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10014 to be added. Now both 'req' and 'ca' can use new objects defined in the
10018 *) Add cool BIO that does syslog (or event log on NT).
10019 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10021 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10022 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10023 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10024 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10027 *) Add preliminary config info for new extension code.
10030 *) Make RSA_NO_PADDING really use no padding.
10031 [Ulf Moeller <ulf@fitug.de>]
10033 *) Generate errors when private/public key check is done.
10036 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10037 for some CRL extensions and new objects added.
10040 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10041 key usage extension and fuller support for authority key id.
10044 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10045 padding method for RSA, which is recommended for new applications in PKCS
10046 #1 v2.0 (RFC 2437, October 1998).
10047 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10048 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10049 against Bleichbacher's attack on RSA.
10050 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10053 *) Updates to the new SSL compression code
10054 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10056 *) Fix so that the version number in the master secret, when passed
10057 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10058 (because the server will not accept higher), that the version number
10059 is 0x03,0x01, not 0x03,0x00
10060 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10062 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10063 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10064 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10067 *) Support for RAW extensions where an arbitrary extension can be
10068 created by including its DER encoding. See apps/openssl.cnf for
10072 *) Make sure latest Perl versions don't interpret some generated C array
10073 code as Perl array code in the crypto/err/err_genc.pl script.
10074 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10076 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10077 not many people have the assembler. Various Win32 compilation fixes and
10078 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10079 build instructions.
10082 *) Modify configure script 'Configure' to automatically create crypto/date.h
10083 file under Win32 and also build pem.h from pem.org. New script
10084 util/mkfiles.pl to create the MINFO file on environments that can't do a
10085 'make files': perl util/mkfiles.pl >MINFO should work.
10088 *) Major rework of DES function declarations, in the pursuit of correctness
10089 and purity. As a result, many evil casts evaporated, and some weirdness,
10090 too. You may find this causes warnings in your code. Zapping your evil
10091 casts will probably fix them. Mostly.
10094 *) Fix for a typo in asn1.h. Bug fix to object creation script
10095 obj_dat.pl. It considered a zero in an object definition to mean
10096 "end of object": none of the objects in objects.h have any zeros
10097 so it wasn't spotted.
10098 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10100 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10101 Masking (CBCM). In the absence of test vectors, the best I have been able
10102 to do is check that the decrypt undoes the encrypt, so far. Send me test
10103 vectors if you have them.
10106 *) Correct calculation of key length for export ciphers (too much space was
10107 allocated for null ciphers). This has not been tested!
10110 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10111 message is now correct (it understands "crypto" and "ssl" on its
10112 command line). There is also now an "update" option. This will update
10113 the util/ssleay.num and util/libeay.num files with any new functions.
10115 perl util/mkdef.pl crypto ssl update
10116 it will update them.
10119 *) Overhauled the Perl interface (perl/*):
10120 - ported BN stuff to OpenSSL's different BN library
10121 - made the perl/ source tree CVS-aware
10122 - renamed the package from SSLeay to OpenSSL (the files still contain
10123 their history because I've copied them in the repository)
10124 - removed obsolete files (the test scripts will be replaced
10125 by better Test::Harness variants in the future)
10126 [Ralf S. Engelschall]
10128 *) First cut for a very conservative source tree cleanup:
10129 1. merge various obsolete readme texts into doc/ssleay.txt
10130 where we collect the old documents and readme texts.
10131 2. remove the first part of files where I'm already sure that we no
10132 longer need them because of three reasons: either they are just temporary
10133 files which were left by Eric or they are preserved original files where
10134 I've verified that the diff is also available in the CVS via "cvs diff
10135 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10136 the crypto/md/ stuff).
10137 [Ralf S. Engelschall]
10139 *) More extension code. Incomplete support for subject and issuer alt
10140 name, issuer and authority key id. Change the i2v function parameters
10141 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10142 what that's for :-) Fix to ASN1 macro which messed up
10143 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10146 *) Preliminary support for ENUMERATED type. This is largely copied from the
10150 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10151 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10153 *) Make sure `make rehash' target really finds the `openssl' program.
10154 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10156 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10157 like to hear about it if this slows down other processors.
10160 *) Add CygWin32 platform information to Configure script.
10161 [Alan Batie <batie@aahz.jf.intel.com>]
10163 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10164 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10166 *) New program nseq to manipulate netscape certificate sequences
10169 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10173 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10174 but the BN code had some problems that would cause failures when
10175 doing certificate verification and some other functions.
10176 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10178 *) Add ASN1 and PEM code to support netscape certificate sequences.
10181 *) Add ASN1 and PEM code to support netscape certificate sequences.
10184 *) Add several PKIX and private extended key usage OIDs.
10187 *) Modify the 'ca' program to handle the new extension code. Modify
10188 openssl.cnf for new extension format, add comments.
10191 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10192 and add a sample to openssl.cnf so req -x509 now adds appropriate
10196 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10197 error code, add initial support to X509_print() and x509 application.
10200 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10201 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10202 stuff is currently isolated and isn't even compiled yet.
10205 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10206 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10207 Removed the versions check from X509 routines when loading extensions:
10208 this allows certain broken certificates that don't set the version
10209 properly to be processed.
10212 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10213 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10214 can still be regenerated with "make depend".
10217 *) Spelling mistake in C version of CAST-128.
10218 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10220 *) Changes to the error generation code. The perl script err-code.pl
10221 now reads in the old error codes and retains the old numbers, only
10222 adding new ones if necessary. It also only changes the .err files if new
10223 codes are added. The makefiles have been modified to only insert errors
10224 when needed (to avoid needlessly modifying header files). This is done
10225 by only inserting errors if the .err file is newer than the auto generated
10226 C file. To rebuild all the error codes from scratch (the old behaviour)
10227 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10228 or delete all the .err files.
10231 *) CAST-128 was incorrectly implemented for short keys. The C version has
10232 been fixed, but is untested. The assembler versions are also fixed, but
10233 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10234 to regenerate it if needed.
10235 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10236 Hagino <itojun@kame.net>]
10238 *) File was opened incorrectly in randfile.c.
10239 [Ulf Möller <ulf@fitug.de>]
10241 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10242 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10243 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10244 al: it's just almost always a UTCTime. Note this patch adds new error
10245 codes so do a "make errors" if there are problems.
10248 *) Correct Linux 1 recognition in config.
10249 [Ulf Möller <ulf@fitug.de>]
10251 *) Remove pointless MD5 hash when using DSA keys in ca.
10252 [Anonymous <nobody@replay.com>]
10254 *) Generate an error if given an empty string as a cert directory. Also
10255 generate an error if handed NULL (previously returned 0 to indicate an
10256 error, but didn't set one).
10257 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10259 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10262 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10263 parameters. This was causing a warning which killed off the Win32 compile.
10266 *) Remove C++ style comments from crypto/bn/bn_local.h.
10267 [Neil Costigan <neil.costigan@celocom.com>]
10269 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10270 based on a text string, looking up short and long names and finally
10271 "dot" format. The "dot" format stuff didn't work. Added new function
10272 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10273 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10274 OID is not part of the table.
10277 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10278 X509_LOOKUP_by_alias().
10281 *) Sort openssl functions by name.
10284 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10285 encryption from sample DSA keys (in case anyone is interested the password
10289 *) Make _all_ *_free functions accept a NULL pointer.
10290 [Frans Heymans <fheymans@isaserver.be>]
10292 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10294 [Anonymous <nobody@replay.com>]
10296 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10297 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10299 *) Don't blow it for numeric -newkey arguments to apps/req.
10300 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10302 *) Temp key "for export" tests were wrong in s3_srvr.c.
10303 [Anonymous <nobody@replay.com>]
10305 *) Add prototype for temp key callback functions
10306 SSL_CTX_set_tmp_{rsa,dh}_callback().
10309 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10310 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10313 *) X509_name_add_entry() freed the wrong thing after an error.
10314 [Arne Ansper <arne@ats.cyber.ee>]
10316 *) rsa_eay.c would attempt to free a NULL context.
10317 [Arne Ansper <arne@ats.cyber.ee>]
10319 *) BIO_s_socket() had a broken should_retry() on Windoze.
10320 [Arne Ansper <arne@ats.cyber.ee>]
10322 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10323 [Arne Ansper <arne@ats.cyber.ee>]
10325 *) Make sure the already existing X509_STORE->depth variable is initialized
10326 in X509_STORE_new(), but document the fact that this variable is still
10327 unused in the certificate verification process.
10328 [Ralf S. Engelschall]
10330 *) Fix the various library and apps files to free up pkeys obtained from
10331 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10334 *) Fix reference counting in X509_PUBKEY_get(). This makes
10335 demos/maurice/example2.c work, amongst others, probably.
10336 [Steve Henson and Ben Laurie]
10338 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10339 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10340 are no longer created. This way we have a single and consistent command
10341 line interface `openssl <command>', similar to `cvs <command>'.
10342 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10344 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10345 BIT STRING wrapper always have zero unused bits.
10348 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10351 *) Make the top-level INSTALL documentation easier to understand.
10354 *) Makefiles updated to exit if an error occurs in a sub-directory
10355 make (including if user presses ^C) [Paul Sutton]
10357 *) Make Montgomery context stuff explicit in RSA data structure.
10360 *) Fix build order of pem and err to allow for generated pem.h.
10363 *) Fix renumbering bug in X509_NAME_delete_entry().
10366 *) Enhanced the err-ins.pl script so it makes the error library number
10367 global and can add a library name. This is needed for external ASN1 and
10368 other error libraries.
10371 *) Fixed sk_insert which never worked properly.
10374 *) Fix ASN1 macros so they can handle indefinite length construted
10375 EXPLICIT tags. Some non standard certificates use these: they can now
10379 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10380 into a single doc/ssleay.txt bundle. This way the information is still
10381 preserved but no longer messes up this directory. Now it's new room for
10382 the new set of documenation files.
10383 [Ralf S. Engelschall]
10385 *) SETs were incorrectly DER encoded. This was a major pain, because they
10386 shared code with SEQUENCEs, which aren't coded the same. This means that
10387 almost everything to do with SETs or SEQUENCEs has either changed name or
10388 number of arguments.
10389 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10391 *) Fix test data to work with the above.
10394 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10395 was already fixed by Eric for 0.9.1 it seems.
10396 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10398 *) Autodetect FreeBSD3.
10401 *) Fix various bugs in Configure. This affects the following platforms:
10405 unixware-2.0-pentium
10409 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10410 before they are needed.
10413 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10417 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10419 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10420 changed SSLeay to OpenSSL in version strings.
10421 [Ralf S. Engelschall]
10423 *) Some fixups to the top-level documents.
10426 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10427 because the symlink to include/ was missing.
10428 [Ralf S. Engelschall]
10430 *) Incorporated the popular no-RSA/DSA-only patches
10431 which allow to compile a RSA-free SSLeay.
10432 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10434 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10435 when "ssleay" is still not found.
10436 [Ralf S. Engelschall]
10438 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10439 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10441 *) Updated the README file.
10442 [Ralf S. Engelschall]
10444 *) Added various .cvsignore files in the CVS repository subdirs
10445 to make a "cvs update" really silent.
10446 [Ralf S. Engelschall]
10448 *) Recompiled the error-definition header files and added
10449 missing symbols to the Win32 linker tables.
10450 [Ralf S. Engelschall]
10452 *) Cleaned up the top-level documents;
10453 o new files: CHANGES and LICENSE
10454 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10455 o merged COPYRIGHT into LICENSE
10456 o removed obsolete TODO file
10457 o renamed MICROSOFT to INSTALL.W32
10458 [Ralf S. Engelschall]
10460 *) Removed dummy files from the 0.9.1b source tree:
10461 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10462 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10463 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10464 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10465 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10466 [Ralf S. Engelschall]
10468 *) Added various platform portability fixes.
10471 *) The Genesis of the OpenSSL rpject:
10472 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10473 Young and Tim J. Hudson created while they were working for C2Net until
10475 [The OpenSSL Project]
10478 Changes between 0.9.0b and 0.9.1b [not released]
10480 *) Updated a few CA certificates under certs/
10483 *) Changed some BIGNUM api stuff.
10486 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10487 DGUX x86, Linux Alpha, etc.
10490 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10491 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10495 *) Add -strparse option to asn1pars program which parses nested
10497 [Dr Stephen Henson <shenson@bigfoot.com>]
10499 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10502 *) DSA fix for "ca" program.
10505 *) Added "-genkey" option to "dsaparam" program.
10508 *) Added RIPE MD160 (rmd160) message digest.
10511 *) Added -a (all) option to "ssleay version" command.
10514 *) Added PLATFORM define which is the id given to Configure.
10517 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10520 *) Extended the ASN.1 parser routines.
10523 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10526 *) Added a BN_CTX to the BN library.
10529 *) Fixed the weak key values in DES library
10532 *) Changed API in EVP library for cipher aliases.
10535 *) Added support for RC2/64bit cipher.
10538 *) Converted the lhash library to the crypto/mem.c functions.
10541 *) Added more recognized ASN.1 object ids.
10544 *) Added more RSA padding checks for SSL/TLS.
10547 *) Added BIO proxy/filter functionality.
10550 *) Added extra_certs to SSL_CTX which can be used
10551 send extra CA certificates to the client in the CA cert chain sending
10552 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10555 *) Now Fortezza is denied in the authentication phase because
10556 this is key exchange mechanism is not supported by SSLeay at all.
10559 *) Additional PKCS1 checks.
10562 *) Support the string "TLSv1" for all TLS v1 ciphers.
10565 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10566 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10569 *) Fixed a few memory leaks.
10572 *) Fixed various code and comment typos.
10575 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10576 bytes sent in the client random.
10577 [Edward Bishop <ebishop@spyglass.com>]