5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) New functions to retrieve certificate signature and signature
11 *) If an attempt is made to use a signature algorithm not in the peer
12 preference list abort the handshake. If client has no suitable
13 signature algorithms in response to a certificate request do not
17 *) If server EC tmp key is not in client preference list abort handshake.
20 *) Add support for certificate stores in CERT structure. This makes it
21 possible to have different stores per SSL structure or one store in
22 the parent SSL_CTX. Include distint stores for certificate chain
23 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
24 to build and store a certificate chain in CERT structure: returing
25 an error if the chain cannot be built: this will allow applications
26 to test if a chain is correctly configured.
28 Note: if the CERT based stores are not set then the parent SSL_CTX
29 store is used to retain compatibility with existing behaviour.
33 *) New function ssl_set_client_disabled to set a ciphersuite disabled
34 mask based on the current session, check mask when sending client
35 hello and checking the requested ciphersuite.
38 *) New ctrls to retrieve and set certificate types in a certificate
39 request message. Print out received values in s_client. If certificate
40 types is not set with custom values set sensible values based on
41 supported signature algorithms.
44 *) Support for distinct client and server supported signature algorithms.
47 *) Add certificate callback. If set this is called whenever a certificate
48 is required by client or server. An application can decide which
49 certificate chain to present based on arbitrary criteria: for example
50 supported signature algorithms. Add very simple example to s_server.
51 This fixes many of the problems and restrictions of the existing client
52 certificate callback: for example you can now clear an existing
53 certificate and specify the whole chain.
56 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
57 the certificate can be used for (if anything). Set valid_flags field
58 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
59 to have similar checks in it.
61 Add new "cert_flags" field to CERT structure and include a "strict mode".
62 This enforces some TLS certificate requirements (such as only permitting
63 certificate signature algorithms contained in the supported algorithms
64 extension) which some implementations ignore: this option should be used
65 with caution as it could cause interoperability issues.
68 *) Update and tidy signature algorithm extension processing. Work out
69 shared signature algorithms based on preferences and peer algorithms
70 and print them out in s_client and s_server. Abort handshake if no
71 shared signature algorithms.
74 *) Add new functions to allow customised supported signature algorithms
75 for SSL and SSL_CTX structures. Add options to s_client and s_server
79 *) New function SSL_certs_clear() to delete all references to certificates
80 from an SSL structure. Before this once a certificate had been added
81 it couldn't be removed.
84 *) Integrate hostname, email address and IP address checking with certificate
85 verification. New verify options supporting checking in opensl utility.
88 *) Fixes and wildcard matching support to hostname and email checking
89 functions. Add manual page.
90 [Florian Weimer (Red Hat Product Security Team)]
92 *) New functions to check a hostname email or IP address against a
93 certificate. Add options x509 utility to print results of checks against
98 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
100 *) Backport support for partial chain verification: if an intermediate
101 certificate is explicitly trusted (using -addtrust option to x509
102 utility for example) the verification is sucessful even if the chain
104 The OCSP checking fix depends on this backport.
105 [Steve Henson and Rob Stradling <rob.stradling@comodo.com>]
107 *) Add -trusted_first option which attempts to find certificates in the
108 trusted store even if an untrusted chain is also supplied.
111 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
112 platform support for Linux and Android.
115 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
116 the right response is stapled. Also change current certificate to
117 the certificate actually sent.
118 See http://rt.openssl.org/Ticket/Display.html?id=2836.
119 [Rob Stradling <rob.stradling@comodo.com>]
121 *) Support for linux-x32, ILP32 environment in x86_64 framework.
125 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
127 *) Experimental multi-implementation support for FIPS capable OpenSSL.
128 When in FIPS mode the approved implementations are used as normal,
129 when not in FIPS mode the internal unapproved versions are used instead.
130 This means that the FIPS capable OpenSSL isn't forced to use the
131 (often lower perfomance) FIPS implementations outside FIPS mode.
134 *) Transparently support X9.42 DH parameters when calling
135 PEM_read_bio_DHparameters. This means existing applications can handle
136 the new parameter format automatically.
139 *) Initial experimental support for X9.42 DH parameter format: mainly
140 to support use of 'q' parameter for RFC5114 parameters.
143 *) Add DH parameters from RFC5114 including test data to dhtest.
146 *) Support for automatic EC temporary key parameter selection. If enabled
147 the most preferred EC parameters are automatically used instead of
148 hardcoded fixed parameters. Now a server just has to call:
149 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
150 support ECDH and use the most appropriate parameters.
153 *) Enhance and tidy EC curve and point format TLS extension code. Use
154 static structures instead of allocation if default values are used.
155 New ctrls to set curves we wish to support and to retrieve shared curves.
156 Print out shared curves in s_server. New options to s_server and s_client
157 to set list of supported curves.
160 *) New ctrls to retrieve supported signature algorithms and
161 supported curve values as an array of NIDs. Extend openssl utility
162 to print out received values.
165 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
166 between NIDs and the more common NIST names such as "P-256". Enhance
167 ecparam utility and ECC method to recognise the NIST names for curves.
170 *) Enhance SSL/TLS certificate chain handling to support different
171 chains for each certificate instead of one chain in the parent SSL_CTX.
174 *) Support for fixed DH ciphersuite client authentication: where both
175 server and client use DH certificates with common parameters.
178 *) Support for fixed DH ciphersuites: those requiring DH server
182 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
184 *) Make openssl verify return errors.
185 [Chris Palmer <palmer@google.com> and Ben Laurie]
187 *) Fix possible deadlock when decoding public keys.
190 *) Don't use TLS 1.0 record version number in initial client hello
194 Changes between 1.0.1b and 1.0.1c [10 May 2012]
196 *) Sanity check record length before skipping explicit IV in TLS
197 1.2, 1.1 and DTLS to avoid DoS attack.
199 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
200 fuzzing as a service testing platform.
204 *) Initialise tkeylen properly when encrypting CMS messages.
205 Thanks to Solar Designer of Openwall for reporting this issue.
208 *) In FIPS mode don't try to use composite ciphers as they are not
212 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
214 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
215 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
216 mean any application compiled against OpenSSL 1.0.0 headers setting
217 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
218 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
219 0x10000000L Any application which was previously compiled against
220 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
221 will need to be recompiled as a result. Letting be results in
222 inability to disable specifically TLS 1.1 and in client context,
223 in unlike event, limit maximum offered version to TLS 1.0 [see below].
226 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
227 disable just protocol X, but all protocols above X *if* there are
228 protocols *below* X still enabled. In more practical terms it means
229 that if application wants to disable TLS1.0 in favor of TLS1.1 and
230 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
231 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
235 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
237 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
238 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
239 in CRYPTO_realloc_clean.
241 Thanks to Tavis Ormandy, Google Security Team, for discovering this
242 issue and to Adam Langley <agl@chromium.org> for fixing it.
244 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
246 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
249 *) Workarounds for some broken servers that "hang" if a client hello
250 record length exceeds 255 bytes:
252 1. Do not use record version number > TLS 1.0 in initial client
253 hello: some (but not all) hanging servers will now work.
254 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
255 the number of ciphers sent in the client hello. This should be
256 set to an even number, such as 50, for example by passing:
257 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
258 Most broken servers should now work.
259 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
260 TLS 1.2 client support entirely.
263 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
266 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
268 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
269 STRING form instead of a DigestInfo.
272 *) The format used for MDC2 RSA signatures is inconsistent between EVP
273 and the RSA_sign/RSA_verify functions. This was made more apparent when
274 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
275 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
276 the correct format in RSA_verify so both forms transparently work.
279 *) Some servers which support TLS 1.0 can choke if we initially indicate
280 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
281 encrypted premaster secret. As a workaround use the maximum pemitted
282 client version in client hello, this should keep such servers happy
283 and still work with previous versions of OpenSSL.
286 *) Add support for TLS/DTLS heartbeats.
287 [Robin Seggelmann <seggelmann@fh-muenster.de>]
289 *) Add support for SCTP.
290 [Robin Seggelmann <seggelmann@fh-muenster.de>]
292 *) Improved PRNG seeding for VOS.
293 [Paul Green <Paul.Green@stratus.com>]
295 *) Extensive assembler packs updates, most notably:
297 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
298 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
299 - x86_64: bit-sliced AES implementation;
300 - ARM: NEON support, contemporary platforms optimizations;
301 - s390x: z196 support;
302 - *: GHASH and GF(2^m) multiplication implementations;
306 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
307 (removal of unnecessary code)
308 [Peter Sylvester <peter.sylvester@edelweb.fr>]
310 *) Add TLS key material exporter from RFC 5705.
313 *) Add DTLS-SRTP negotiation from RFC 5764.
316 *) Add Next Protocol Negotiation,
317 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
318 disabled with a no-npn flag to config or Configure. Code donated
320 [Adam Langley <agl@google.com> and Ben Laurie]
322 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
323 NIST-P256, NIST-P521, with constant-time single point multiplication on
324 typical inputs. Compiler support for the nonstandard type __uint128_t is
325 required to use this (present in gcc 4.4 and later, for 64-bit builds).
326 Code made available under Apache License version 2.0.
328 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
329 line to include this in your build of OpenSSL, and run "make depend" (or
330 "make update"). This enables the following EC_METHODs:
332 EC_GFp_nistp224_method()
333 EC_GFp_nistp256_method()
334 EC_GFp_nistp521_method()
336 EC_GROUP_new_by_curve_name() will automatically use these (while
337 EC_GROUP_new_curve_GFp() currently prefers the more flexible
339 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
341 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
342 all platforms. Move ssize_t definition from e_os.h to the public
343 header file e_os2.h as it now appears in public header file cms.h
346 *) New -sigopt option to the ca, req and x509 utilities. Additional
347 signature parameters can be passed using this option and in
351 *) Add RSA PSS signing function. This will generate and set the
352 appropriate AlgorithmIdentifiers for PSS based on those in the
353 corresponding EVP_MD_CTX structure. No application support yet.
356 *) Support for companion algorithm specific ASN1 signing routines.
357 New function ASN1_item_sign_ctx() signs a pre-initialised
358 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
359 the appropriate parameters.
362 *) Add new algorithm specific ASN1 verification initialisation function
363 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
364 handling will be the same no matter what EVP_PKEY_METHOD is used.
365 Add a PSS handler to support verification of PSS signatures: checked
366 against a number of sample certificates.
369 *) Add signature printing for PSS. Add PSS OIDs.
370 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
372 *) Add algorithm specific signature printing. An individual ASN1 method
373 can now print out signatures instead of the standard hex dump.
375 More complex signatures (e.g. PSS) can print out more meaningful
376 information. Include DSA version that prints out the signature
380 *) Password based recipient info support for CMS library: implementing
384 *) Split password based encryption into PBES2 and PBKDF2 functions. This
385 neatly separates the code into cipher and PBE sections and is required
386 for some algorithms that split PBES2 into separate pieces (such as
390 *) Session-handling fixes:
391 - Fix handling of connections that are resuming with a session ID,
392 but also support Session Tickets.
393 - Fix a bug that suppressed issuing of a new ticket if the client
394 presented a ticket with an expired session.
395 - Try to set the ticket lifetime hint to something reasonable.
396 - Make tickets shorter by excluding irrelevant information.
397 - On the client side, don't ignore renewed tickets.
398 [Adam Langley, Bodo Moeller (Google)]
400 *) Fix PSK session representation.
403 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
405 This work was sponsored by Intel.
408 *) Add GCM support to TLS library. Some custom code is needed to split
409 the IV between the fixed (from PRF) and explicit (from TLS record)
410 portions. This adds all GCM ciphersuites supported by RFC5288 and
411 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
412 add a special AESGCM string for GCM only.
415 *) Expand range of ctrls for AES GCM. Permit setting invocation
416 field on decrypt and retrieval of invocation field only on encrypt.
419 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
420 As required by RFC5289 these ciphersuites cannot be used if for
421 versions of TLS earlier than 1.2.
424 *) For FIPS capable OpenSSL interpret a NULL default public key method
425 as unset and return the appopriate default but do *not* set the default.
426 This means we can return the appopriate method in applications that
427 swicth between FIPS and non-FIPS modes.
430 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
431 ENGINE is used then we cannot handle that in the FIPS module so we
432 keep original code iff non-FIPS operations are allowed.
435 *) Add -attime option to openssl utilities.
436 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
438 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
441 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
442 FIPS EC methods unconditionally for now.
445 *) New build option no-ec2m to disable characteristic 2 code.
448 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
449 all cases can be covered as some introduce binary incompatibilities.
452 *) Redirect RSA operations to FIPS module including keygen,
453 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
456 *) Add similar low level API blocking to ciphers.
459 *) Low level digest APIs are not approved in FIPS mode: any attempt
460 to use these will cause a fatal error. Applications that *really* want
461 to use them can use the private_* version instead.
464 *) Redirect cipher operations to FIPS module for FIPS builds.
467 *) Redirect digest operations to FIPS module for FIPS builds.
470 *) Update build system to add "fips" flag which will link in fipscanister.o
471 for static and shared library builds embedding a signature if needed.
474 *) Output TLS supported curves in preference order instead of numerical
475 order. This is currently hardcoded for the highest order curves first.
476 This should be configurable so applications can judge speed vs strength.
479 *) Add TLS v1.2 server support for client authentication.
482 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
486 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
487 FIPS modules versions.
490 *) Add TLS v1.2 client side support for client authentication. Keep cache
491 of handshake records longer as we don't know the hash algorithm to use
492 until after the certificate request message is received.
495 *) Initial TLS v1.2 client support. Add a default signature algorithms
496 extension including all the algorithms we support. Parse new signature
497 format in client key exchange. Relax some ECC signing restrictions for
498 TLS v1.2 as indicated in RFC5246.
501 *) Add server support for TLS v1.2 signature algorithms extension. Switch
502 to new signature format when needed using client digest preference.
503 All server ciphersuites should now work correctly in TLS v1.2. No client
504 support yet and no support for client certificates.
507 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
508 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
509 ciphersuites. At present only RSA key exchange ciphersuites work with
510 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
511 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
512 and version checking.
515 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
516 with this defined it will not be affected by any changes to ssl internal
517 structures. Add several utility functions to allow openssl application
518 to work with OPENSSL_NO_SSL_INTERN defined.
522 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
524 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
527 *) Permit abbreviated handshakes when renegotiating using the function
528 SSL_renegotiate_abbreviated().
529 [Robin Seggelmann <seggelmann@fh-muenster.de>]
531 *) Add call to ENGINE_register_all_complete() to
532 ENGINE_load_builtin_engines(), so some implementations get used
533 automatically instead of needing explicit application support.
536 *) Add support for TLS key exporter as described in RFC5705.
537 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
539 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
540 a few changes are required:
542 Add SSL_OP_NO_TLSv1_1 flag.
544 Update version checking logic to handle version 1.1.
545 Add explicit IV handling (ported from DTLS code).
546 Add command line options to s_client/s_server.
549 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
551 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
552 in CMS and PKCS7 code. When RSA decryption fails use a random key for
553 content decryption and always return the same error. Note: this attack
554 needs on average 2^20 messages so it only affects automated senders. The
555 old behaviour can be reenabled in the CMS code by setting the
556 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
557 an MMA defence is not necessary.
558 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
559 this issue. (CVE-2012-0884)
562 *) Fix CVE-2011-4619: make sure we really are receiving a
563 client hello before rejecting multiple SGC restarts. Thanks to
564 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
567 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
569 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
570 Thanks to Antonio Martin, Enterprise Secure Access Research and
571 Development, Cisco Systems, Inc. for discovering this bug and
572 preparing a fix. (CVE-2012-0050)
575 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
577 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
578 of the Vaudenay padding oracle attack on CBC mode encryption
579 which enables an efficient plaintext recovery attack against
580 the OpenSSL implementation of DTLS. Their attack exploits timing
581 differences arising during decryption processing. A research
582 paper describing this attack can be found at:
583 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
584 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
585 Security Group at Royal Holloway, University of London
586 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
587 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
588 for preparing the fix. (CVE-2011-4108)
589 [Robin Seggelmann, Michael Tuexen]
591 *) Clear bytes used for block padding of SSL 3.0 records.
593 [Adam Langley (Google)]
595 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
596 Kadianakis <desnacked@gmail.com> for discovering this issue and
597 Adam Langley for preparing the fix. (CVE-2011-4619)
598 [Adam Langley (Google)]
600 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
601 [Andrey Kulikov <amdeich@gmail.com>]
603 *) Prevent malformed RFC3779 data triggering an assertion failure.
604 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
605 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
606 [Rob Austein <sra@hactrn.net>]
608 *) Improved PRNG seeding for VOS.
609 [Paul Green <Paul.Green@stratus.com>]
611 *) Fix ssl_ciph.c set-up race.
612 [Adam Langley (Google)]
614 *) Fix spurious failures in ecdsatest.c.
615 [Emilia Käsper (Google)]
617 *) Fix the BIO_f_buffer() implementation (which was mixing different
618 interpretations of the '..._len' fields).
619 [Adam Langley (Google)]
621 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
622 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
623 threads won't reuse the same blinding coefficients.
625 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
626 lock to call BN_BLINDING_invert_ex, and avoids one use of
627 BN_BLINDING_update for each BN_BLINDING structure (previously,
628 the last update always remained unused).
629 [Emilia Käsper (Google)]
631 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
632 [Bob Buckholz (Google)]
634 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
636 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
637 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
638 [Kaspar Brand <ossl@velox.ch>]
640 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
641 for multi-threaded use of ECDH. (CVE-2011-3210)
642 [Adam Langley (Google)]
644 *) Fix x509_name_ex_d2i memory leak on bad inputs.
647 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
648 signature public key algorithm by using OID xref utilities instead.
649 Before this you could only use some ECC ciphersuites with SHA1 only.
652 *) Add protection against ECDSA timing attacks as mentioned in the paper
653 by Billy Bob Brumley and Nicola Tuveri, see:
655 http://eprint.iacr.org/2011/232.pdf
657 [Billy Bob Brumley and Nicola Tuveri]
659 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
661 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
662 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
664 *) Fix bug in string printing code: if *any* escaping is enabled we must
665 escape the escape character (backslash) or the resulting string is
669 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
671 *) Disable code workaround for ancient and obsolete Netscape browsers
672 and servers: an attacker can use it in a ciphersuite downgrade attack.
673 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
676 *) Fixed J-PAKE implementation error, originally discovered by
677 Sebastien Martini, further info and confirmation from Stefan
678 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
681 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
683 *) Fix extension code to avoid race conditions which can result in a buffer
684 overrun vulnerability: resumed sessions must not be modified as they can
685 be shared by multiple threads. CVE-2010-3864
688 *) Fix WIN32 build system to correctly link an ENGINE directory into
692 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
694 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
696 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
698 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
700 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
701 context. The operation can be customised via the ctrl mechanism in
702 case ENGINEs want to include additional functionality.
705 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
708 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
709 output hashes compatible with older versions of OpenSSL.
710 [Willy Weisz <weisz@vcpc.univie.ac.at>]
712 *) Fix compression algorithm handling: if resuming a session use the
713 compression algorithm of the resumed session instead of determining
714 it from client hello again. Don't allow server to change algorithm.
717 *) Add load_crls() function to apps tidying load_certs() too. Add option
718 to verify utility to allow additional CRLs to be included.
721 *) Update OCSP request code to permit adding custom headers to the request:
722 some responders need this.
725 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
727 [Julia Lawall <julia@diku.dk>]
729 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
730 needlessly dereferenced structures, used obsolete functions and
731 didn't handle all updated verify codes correctly.
734 *) Disable MD2 in the default configuration.
737 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
738 indicate the initial BIO being pushed or popped. This makes it possible
739 to determine whether the BIO is the one explicitly called or as a result
740 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
741 it handles reference counts correctly and doesn't zero out the I/O bio
742 when it is not being explicitly popped. WARNING: applications which
743 included workarounds for the old buggy behaviour will need to be modified
744 or they could free up already freed BIOs.
747 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
748 renaming to all platforms (within the 0.9.8 branch, this was
749 done conditionally on Netware platforms to avoid a name clash).
750 [Guenter <lists@gknw.net>]
752 *) Add ECDHE and PSK support to DTLS.
753 [Michael Tuexen <tuexen@fh-muenster.de>]
755 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
759 *) Add "missing" function EVP_MD_flags() (without this the only way to
760 retrieve a digest flags is by accessing the structure directly. Update
761 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
762 or cipher is registered as in the "from" argument. Print out all
763 registered digests in the dgst usage message instead of manually
764 attempting to work them out.
767 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
768 this allows the use of compression and extensions. Change default cipher
769 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
770 by default unless an application cipher string requests it.
773 *) Alter match criteria in PKCS12_parse(). It used to try to use local
774 key ids to find matching certificates and keys but some PKCS#12 files
775 don't follow the (somewhat unwritten) rules and this strategy fails.
776 Now just gather all certificates together and the first private key
777 then look for the first certificate that matches the key.
780 *) Support use of registered digest and cipher names for dgst and cipher
781 commands instead of having to add each one as a special case. So now
788 openssl dgst -sha256 foo
790 and this works for ENGINE based algorithms too.
794 *) Update Gost ENGINE to support parameter files.
795 [Victor B. Wagner <vitus@cryptocom.ru>]
797 *) Support GeneralizedTime in ca utility.
798 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
800 *) Enhance the hash format used for certificate directory links. The new
801 form uses the canonical encoding (meaning equivalent names will work
802 even if they aren't identical) and uses SHA1 instead of MD5. This form
803 is incompatible with the older format and as a result c_rehash should
804 be used to rebuild symbolic links.
807 *) Make PKCS#8 the default write format for private keys, replacing the
808 traditional format. This form is standardised, more secure and doesn't
809 include an implicit MD5 dependency.
812 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
813 committed to OpenSSL should pass this lot as a minimum.
816 *) Add session ticket override functionality for use by EAP-FAST.
817 [Jouni Malinen <j@w1.fi>]
819 *) Modify HMAC functions to return a value. Since these can be implemented
820 in an ENGINE errors can occur.
823 *) Type-checked OBJ_bsearch_ex.
826 *) Type-checked OBJ_bsearch. Also some constification necessitated
827 by type-checking. Still to come: TXT_DB, bsearch(?),
828 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
832 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
833 seconds to a tm structure directly, instead of going through OS
834 specific date routines. This avoids any issues with OS routines such
835 as the year 2038 bug. New *_adj() functions for ASN1 time structures
836 and X509_time_adj_ex() to cover the extended range. The existing
837 X509_time_adj() is still usable and will no longer have any date issues.
840 *) Delta CRL support. New use deltas option which will attempt to locate
841 and search any appropriate delta CRLs available.
843 This work was sponsored by Google.
846 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
847 code and add additional score elements. Validate alternate CRL paths
848 as part of the CRL checking and indicate a new error "CRL path validation
849 error" in this case. Applications wanting additional details can use
850 the verify callback and check the new "parent" field. If this is not
851 NULL CRL path validation is taking place. Existing applications wont
852 see this because it requires extended CRL support which is off by
855 This work was sponsored by Google.
858 *) Support for freshest CRL extension.
860 This work was sponsored by Google.
863 *) Initial indirect CRL support. Currently only supported in the CRLs
864 passed directly and not via lookup. Process certificate issuer
865 CRL entry extension and lookup CRL entries by bother issuer name
866 and serial number. Check and process CRL issuer entry in IDP extension.
868 This work was sponsored by Google.
871 *) Add support for distinct certificate and CRL paths. The CRL issuer
872 certificate is validated separately in this case. Only enabled if
873 an extended CRL support flag is set: this flag will enable additional
874 CRL functionality in future.
876 This work was sponsored by Google.
879 *) Add support for policy mappings extension.
881 This work was sponsored by Google.
884 *) Fixes to pathlength constraint, self issued certificate handling,
885 policy processing to align with RFC3280 and PKITS tests.
887 This work was sponsored by Google.
890 *) Support for name constraints certificate extension. DN, email, DNS
891 and URI types are currently supported.
893 This work was sponsored by Google.
896 *) To cater for systems that provide a pointer-based thread ID rather
897 than numeric, deprecate the current numeric thread ID mechanism and
898 replace it with a structure and associated callback type. This
899 mechanism allows a numeric "hash" to be extracted from a thread ID in
900 either case, and on platforms where pointers are larger than 'long',
901 mixing is done to help ensure the numeric 'hash' is usable even if it
902 can't be guaranteed unique. The default mechanism is to use "&errno"
903 as a pointer-based thread ID to distinguish between threads.
905 Applications that want to provide their own thread IDs should now use
906 CRYPTO_THREADID_set_callback() to register a callback that will call
907 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
909 Note that ERR_remove_state() is now deprecated, because it is tied
910 to the assumption that thread IDs are numeric. ERR_remove_state(0)
911 to free the current thread's error state should be replaced by
912 ERR_remove_thread_state(NULL).
914 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
915 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
916 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
917 application was previously providing a numeric thread callback that
918 was inappropriate for distinguishing threads, then uniqueness might
919 have been obtained with &errno that happened immediately in the
920 intermediate development versions of OpenSSL; this is no longer the
921 case, the numeric thread callback will now override the automatic use
923 [Geoff Thorpe, with help from Bodo Moeller]
925 *) Initial support for different CRL issuing certificates. This covers a
926 simple case where the self issued certificates in the chain exist and
927 the real CRL issuer is higher in the existing chain.
929 This work was sponsored by Google.
932 *) Removed effectively defunct crypto/store from the build.
935 *) Revamp of STACK to provide stronger type-checking. Still to come:
936 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
937 ASN1_STRING, CONF_VALUE.
940 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
941 RAM on SSL connections. This option can save about 34k per idle SSL.
944 *) Revamp of LHASH to provide stronger type-checking. Still to come:
945 STACK, TXT_DB, bsearch, qsort.
948 *) Initial support for Cryptographic Message Syntax (aka CMS) based
949 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
950 support for data, signedData, compressedData, digestedData and
951 encryptedData, envelopedData types included. Scripts to check against
952 RFC4134 examples draft and interop and consistency checks of many
953 content types and variants.
956 *) Add options to enc utility to support use of zlib compression BIO.
959 *) Extend mk1mf to support importing of options and assembly language
960 files from Configure script, currently only included in VC-WIN32.
961 The assembly language rules can now optionally generate the source
962 files from the associated perl scripts.
965 *) Implement remaining functionality needed to support GOST ciphersuites.
966 Interop testing has been performed using CryptoPro implementations.
967 [Victor B. Wagner <vitus@cryptocom.ru>]
969 *) s390x assembler pack.
972 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
976 *) Implement Opaque PRF Input TLS extension as specified in
977 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
978 official specification yet and no extension type assignment by
979 IANA exists, this extension (for now) will have to be explicitly
980 enabled when building OpenSSL by providing the extension number
981 to use. For example, specify an option
983 -DTLSEXT_TYPE_opaque_prf_input=0x9527
985 to the "config" or "Configure" script to enable the extension,
986 assuming extension number 0x9527 (which is a completely arbitrary
987 and unofficial assignment based on the MD5 hash of the Internet
988 Draft). Note that by doing so, you potentially lose
989 interoperability with other TLS implementations since these might
990 be using the same extension number for other purposes.
992 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
993 opaque PRF input value to use in the handshake. This will create
994 an interal copy of the length-'len' string at 'src', and will
995 return non-zero for success.
997 To get more control and flexibility, provide a callback function
1000 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1001 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1005 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1008 Callback function 'cb' will be called in handshakes, and is
1009 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1010 Argument 'arg' is for application purposes (the value as given to
1011 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1012 be provided to the callback function). The callback function
1013 has to return non-zero to report success: usually 1 to use opaque
1014 PRF input just if possible, or 2 to enforce use of the opaque PRF
1015 input. In the latter case, the library will abort the handshake
1016 if opaque PRF input is not successfully negotiated.
1018 Arguments 'peerinput' and 'len' given to the callback function
1019 will always be NULL and 0 in the case of a client. A server will
1020 see the client's opaque PRF input through these variables if
1021 available (NULL and 0 otherwise). Note that if the server
1022 provides an opaque PRF input, the length must be the same as the
1023 length of the client's opaque PRF input.
1025 Note that the callback function will only be called when creating
1026 a new session (session resumption can resume whatever was
1027 previously negotiated), and will not be called in SSL 2.0
1028 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1029 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1030 for applications that need to enforce opaque PRF input.
1034 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1037 [Victor B. Wagner <vitus@cryptocom.ru>]
1039 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1040 RFC4507bis. The encrypted ticket format is an encrypted encoded
1041 SSL_SESSION structure, that way new session features are automatically
1044 If a client application caches session in an SSL_SESSION structure
1045 support is transparent because tickets are now stored in the encoded
1048 The SSL_CTX structure automatically generates keys for ticket
1049 protection in servers so again support should be possible
1050 with no application modification.
1052 If a client or server wishes to disable RFC4507 support then the option
1053 SSL_OP_NO_TICKET can be set.
1055 Add a TLS extension debugging callback to allow the contents of any client
1056 or server extensions to be examined.
1058 This work was sponsored by Google.
1061 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1062 OpenSSL should now compile cleanly on gcc 4.2
1063 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1065 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1066 support including streaming MAC support: this is required for GOST
1067 ciphersuite support.
1068 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1070 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1071 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1072 to output in BER and PEM format.
1075 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1076 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1077 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1078 ENGINE support for HMAC keys which are unextractable. New -mac and
1079 -macopt options to dgst utility.
1082 *) New option -sigopt to dgst utility. Update dgst to use
1083 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1084 alternative signing paramaters such as X9.31 or PSS in the dgst
1088 *) Change ssl_cipher_apply_rule(), the internal function that does
1089 the work each time a ciphersuite string requests enabling
1090 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1091 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1092 the order of disabled ciphersuites such that those ciphersuites
1093 that most recently went from enabled to disabled not only stay
1094 in order with respect to each other, but also have higher priority
1095 than other disabled ciphersuites the next time ciphersuites are
1098 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1099 the same ciphersuites as with "HIGH" alone, but in a specific
1100 order where the PSK ciphersuites come first (since they are the
1101 most recently disabled ciphersuites when "HIGH" is parsed).
1103 Also, change ssl_create_cipher_list() (using this new
1104 funcionality) such that between otherwise identical
1105 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1109 *) Change ssl_create_cipher_list() so that it automatically
1110 arranges the ciphersuites in reasonable order before starting
1111 to process the rule string. Thus, the definition for "DEFAULT"
1112 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1113 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1114 This makes it much easier to arrive at a reasonable default order
1115 in applications for which anonymous ciphers are OK (meaning
1116 that you can't actually use DEFAULT).
1117 [Bodo Moeller; suggested by Victor Duchovni]
1119 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1120 processing) into multiple integers instead of setting
1121 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1122 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1123 (These masks as well as the individual bit definitions are hidden
1124 away into the non-exported interface ssl/ssl_locl.h, so this
1125 change to the definition of the SSL_CIPHER structure shouldn't
1126 affect applications.) This give us more bits for each of these
1127 categories, so there is no longer a need to coagulate AES128 and
1128 AES256 into a single algorithm bit, and to coagulate Camellia128
1129 and Camellia256 into a single algorithm bit, which has led to all
1132 Thus, among other things, the kludge introduced in 0.9.7m and
1133 0.9.8e for masking out AES256 independently of AES128 or masking
1134 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1136 With the change, we also introduce new ciphersuite aliases that
1137 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1141 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1142 Use the leftmost N bytes of the signature input if the input is
1143 larger than the prime q (with N being the size in bytes of q).
1146 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1147 it yet and it is largely untested.
1150 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1153 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1154 some compilers (gcc 4.2 and later) reject their use. Safestack is
1155 reimplemented. Update ASN1 to avoid use of legacy functions.
1158 *) Win32/64 targets are linked with Winsock2.
1161 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1162 to external functions. This can be used to increase CRL handling
1163 efficiency especially when CRLs are very large by (for example) storing
1164 the CRL revoked certificates in a database.
1167 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1168 new CRLs added to a directory can be used. New command line option
1169 -verify_return_error to s_client and s_server. This causes real errors
1170 to be returned by the verify callback instead of carrying on no matter
1171 what. This reflects the way a "real world" verify callback would behave.
1174 *) GOST engine, supporting several GOST algorithms and public key formats.
1175 Kindly donated by Cryptocom.
1178 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1179 partitioned by DP are handled but no indirect CRL or reason partitioning
1180 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1181 selected via a scoring technique which handles IDP and AKID in CRLs.
1184 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1185 will ultimately be used for all verify operations: this will remove the
1186 X509_STORE dependency on certificate verification and allow alternative
1187 lookup methods. X509_STORE based implementations of these two callbacks.
1190 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1191 Modify get_crl() to find a valid (unexpired) CRL if possible.
1194 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1195 this would be called X509_CRL_cmp() but that name is already used by
1196 a function that just compares CRL issuer names. Cache several CRL
1197 extensions in X509_CRL structure and cache CRLDP in X509.
1200 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1201 this maps equivalent X509_NAME structures into a consistent structure.
1202 Name comparison can then be performed rapidly using memcmp().
1205 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1209 *) Allow digests to supply their own micalg string for S/MIME type using
1210 the ctrl EVP_MD_CTRL_MICALG.
1213 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1214 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1215 ctrl. It can then customise the structure before and/or after signing
1219 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1220 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1221 to free up any added signature OIDs.
1224 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1225 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1226 digest and cipher tables. New options added to openssl utility:
1227 list-message-digest-algorithms and list-cipher-algorithms.
1230 *) Change the array representation of binary polynomials: the list
1231 of degrees of non-zero coefficients is now terminated with -1.
1232 Previously it was terminated with 0, which was also part of the
1233 value; thus, the array representation was not applicable to
1234 polynomials where t^0 has coefficient zero. This change makes
1235 the array representation useful in a more general context.
1238 *) Various modifications and fixes to SSL/TLS cipher string
1239 handling. For ECC, the code now distinguishes between fixed ECDH
1240 with RSA certificates on the one hand and with ECDSA certificates
1241 on the other hand, since these are separate ciphersuites. The
1242 unused code for Fortezza ciphersuites has been removed.
1244 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1245 (not "ECDHE"). For consistency with the code for DH
1246 certificates, use of ECDH certificates is now considered ECDH
1247 authentication, not RSA or ECDSA authentication (the latter is
1248 merely the CA's signing algorithm and not actively used in the
1251 The temporary ciphersuite alias "ECCdraft" is no longer
1252 available, and ECC ciphersuites are no longer excluded from "ALL"
1253 and "DEFAULT". The following aliases now exist for RFC 4492
1254 ciphersuites, most of these by analogy with the DH case:
1256 kECDHr - ECDH cert, signed with RSA
1257 kECDHe - ECDH cert, signed with ECDSA
1258 kECDH - ECDH cert (signed with either RSA or ECDSA)
1259 kEECDH - ephemeral ECDH
1260 ECDH - ECDH cert or ephemeral ECDH
1266 AECDH - anonymous ECDH
1267 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1271 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1272 Use correct micalg parameters depending on digest(s) in signed message.
1275 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1276 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1279 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1280 an engine to register a method. Add ENGINE lookups for methods and
1281 functional reference processing.
1284 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1285 EVP_{Sign,Verify}* which allow an application to customise the signature
1289 *) New -resign option to smime utility. This adds one or more signers
1290 to an existing PKCS#7 signedData structure. Also -md option to use an
1291 alternative message digest algorithm for signing.
1294 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1295 create PKCS7 structures containing multiple signers. Update smime
1296 application to support multiple signers.
1299 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1303 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1304 Reorganize PBE internals to lookup from a static table using NIDs,
1305 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1306 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1307 PRF which will be automatically used with PBES2.
1310 *) Replace the algorithm specific calls to generate keys in "req" with the
1314 *) Update PKCS#7 enveloped data routines to use new API. This is now
1315 supported by any public key method supporting the encrypt operation. A
1316 ctrl is added to allow the public key algorithm to examine or modify
1317 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1321 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1322 a default digest type to use. In most cases this will be SHA1 but some
1323 algorithms (such as GOST) need to specify an alternative digest. The
1324 return value indicates how strong the prefernce is 1 means optional and
1325 2 is mandatory (that is it is the only supported type). Modify
1326 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1327 use the default md. Update openssl utilities to use the default digest
1328 type for signing if it is not explicitly indicated.
1331 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1332 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1333 signing method from the key type. This effectively removes the link
1334 between digests and public key types.
1337 *) Add an OID cross reference table and utility functions. Its purpose is to
1338 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1339 rsaEncryption. This will allow some of the algorithm specific hackery
1340 needed to use the correct OID to be removed.
1343 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1344 structures for PKCS7_sign(). They are now set up by the relevant public
1348 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1351 *) Add support for key derivation (agreement) in the API, DH method and
1355 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1356 public and private key formats. As a side effect these add additional
1357 command line functionality not previously available: DSA signatures can be
1358 generated and verified using pkeyutl and DH key support and generation in
1363 [Oliver Tappe <zooey@hirschkaefer.de>]
1365 *) New make target "install_html_docs" installs HTML renditions of the
1367 [Oliver Tappe <zooey@hirschkaefer.de>]
1369 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1370 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1371 support key and parameter generation and add initial key generation
1372 functionality for RSA.
1375 *) Add functions for main EVP_PKEY_method operations. The undocumented
1376 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1377 EVP_PKEY_{encrypt,decrypt}_old.
1380 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1381 key API, doesn't do much yet.
1384 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1385 public key algorithms. New option to openssl utility:
1386 "list-public-key-algorithms" to print out info.
1389 *) Implement the Supported Elliptic Curves Extension for
1390 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1393 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1394 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1397 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1398 utilities such as rsa, dsa, dsaparam etc except they process any key
1402 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1403 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1404 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1408 *) Initial support for pluggable public key ASN1.
1409 De-spaghettify the public key ASN1 handling. Move public and private
1410 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1411 algorithm specific handling to a single module within the relevant
1412 algorithm directory. Add functions to allow (near) opaque processing
1413 of public and private key structures.
1416 *) Implement the Supported Point Formats Extension for
1417 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1420 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1421 for the psk identity [hint] and the psk callback functions to the
1422 SSL_SESSION, SSL and SSL_CTX structure.
1425 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1429 SSL_CTX_use_psk_identity_hint
1430 SSL_get_psk_identity_hint
1431 SSL_get_psk_identity
1432 SSL_use_psk_identity_hint
1434 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1436 *) Add RFC 3161 compliant time stamp request creation, response generation
1437 and response verification functionality.
1438 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1440 *) Add initial support for TLS extensions, specifically for the server_name
1441 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1442 have new members for a host name. The SSL data structure has an
1443 additional member SSL_CTX *initial_ctx so that new sessions can be
1444 stored in that context to allow for session resumption, even after the
1445 SSL has been switched to a new SSL_CTX in reaction to a client's
1446 server_name extension.
1448 New functions (subject to change):
1450 SSL_get_servername()
1451 SSL_get_servername_type()
1454 New CTRL codes and macros (subject to change):
1456 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1457 - SSL_CTX_set_tlsext_servername_callback()
1458 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1459 - SSL_CTX_set_tlsext_servername_arg()
1460 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1462 openssl s_client has a new '-servername ...' option.
1464 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1465 '-key2 ...', '-servername_fatal' (subject to change). This allows
1466 testing the HostName extension for a specific single host name ('-cert'
1467 and '-key' remain fallbacks for handshakes without HostName
1468 negotiation). If the unrecogninzed_name alert has to be sent, this by
1469 default is a warning; it becomes fatal with the '-servername_fatal'
1472 [Peter Sylvester, Remy Allais, Christophe Renou]
1474 *) Whirlpool hash implementation is added.
1477 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1478 bn(64,32). Because of instruction set limitations it doesn't have
1479 any negative impact on performance. This was done mostly in order
1480 to make it possible to share assembler modules, such as bn_mul_mont
1481 implementations, between 32- and 64-bit builds without hassle.
1484 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1485 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1489 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1490 dedicated Montgomery multiplication procedure, is introduced.
1491 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1492 "64-bit" performance on certain 32-bit targets.
1495 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1496 in SSL structures. New SSL ctrl to set maximum send fragment size.
1497 Save memory by seeting the I/O buffer sizes dynamically instead of
1498 using the maximum available value.
1501 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1502 in addition to the text details.
1505 *) Very, very preliminary EXPERIMENTAL support for printing of general
1506 ASN1 structures. This currently produces rather ugly output and doesn't
1507 handle several customised structures at all.
1510 *) Integrated support for PVK file format and some related formats such
1511 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1512 these in the 'rsa' and 'dsa' utilities.
1515 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1518 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1519 place for the (very old) "NETSCAPE" format certificates which are now
1520 handled using new ASN1 code equivalents.
1523 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1524 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1525 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1528 *) Modify CRL distribution points extension code to print out previously
1529 unsupported fields. Enhance extension setting code to allow setting of
1533 *) Add print and set support for Issuing Distribution Point CRL extension.
1536 *) Change 'Configure' script to enable Camellia by default.
1539 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1541 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1542 Thanks to Antonio Martin, Enterprise Secure Access Research and
1543 Development, Cisco Systems, Inc. for discovering this bug and
1544 preparing a fix. (CVE-2012-0050)
1547 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1549 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1550 of the Vaudenay padding oracle attack on CBC mode encryption
1551 which enables an efficient plaintext recovery attack against
1552 the OpenSSL implementation of DTLS. Their attack exploits timing
1553 differences arising during decryption processing. A research
1554 paper describing this attack can be found at:
1555 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1556 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1557 Security Group at Royal Holloway, University of London
1558 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1559 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1560 for preparing the fix. (CVE-2011-4108)
1561 [Robin Seggelmann, Michael Tuexen]
1563 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1564 [Ben Laurie, Kasper <ekasper@google.com>]
1566 *) Clear bytes used for block padding of SSL 3.0 records.
1568 [Adam Langley (Google)]
1570 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1571 Kadianakis <desnacked@gmail.com> for discovering this issue and
1572 Adam Langley for preparing the fix. (CVE-2011-4619)
1573 [Adam Langley (Google)]
1575 *) Prevent malformed RFC3779 data triggering an assertion failure.
1576 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1577 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1578 [Rob Austein <sra@hactrn.net>]
1580 *) Fix ssl_ciph.c set-up race.
1581 [Adam Langley (Google)]
1583 *) Fix spurious failures in ecdsatest.c.
1584 [Emilia Käsper (Google)]
1586 *) Fix the BIO_f_buffer() implementation (which was mixing different
1587 interpretations of the '..._len' fields).
1588 [Adam Langley (Google)]
1590 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1591 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1592 threads won't reuse the same blinding coefficients.
1594 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1595 lock to call BN_BLINDING_invert_ex, and avoids one use of
1596 BN_BLINDING_update for each BN_BLINDING structure (previously,
1597 the last update always remained unused).
1598 [Emilia Käsper (Google)]
1600 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1601 for multi-threaded use of ECDH.
1602 [Adam Langley (Google)]
1604 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1607 *) Add protection against ECDSA timing attacks as mentioned in the paper
1608 by Billy Bob Brumley and Nicola Tuveri, see:
1610 http://eprint.iacr.org/2011/232.pdf
1612 [Billy Bob Brumley and Nicola Tuveri]
1614 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1616 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1617 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1619 *) Fix bug in string printing code: if *any* escaping is enabled we must
1620 escape the escape character (backslash) or the resulting string is
1624 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1626 *) Disable code workaround for ancient and obsolete Netscape browsers
1627 and servers: an attacker can use it in a ciphersuite downgrade attack.
1628 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1631 *) Fixed J-PAKE implementation error, originally discovered by
1632 Sebastien Martini, further info and confirmation from Stefan
1633 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1636 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1638 *) Fix extension code to avoid race conditions which can result in a buffer
1639 overrun vulnerability: resumed sessions must not be modified as they can
1640 be shared by multiple threads. CVE-2010-3864
1643 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1646 *) Don't reencode certificate when calculating signature: cache and use
1647 the original encoding instead. This makes signature verification of
1648 some broken encodings work correctly.
1651 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1652 is also one of the inputs.
1653 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1655 *) Don't repeatedly append PBE algorithms to table if they already exist.
1656 Sort table on each new add. This effectively makes the table read only
1657 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1661 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1663 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1666 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1667 access or freeing data twice (CVE-2010-0742)
1668 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1670 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1671 common in certificates and some applications which only call
1672 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1676 Reduce copying into .apps and .test in makevms.com
1677 Don't try to use blank CA certificate in CA.com
1678 Allow use of C files from original directories in maketests.com
1679 [Steven M. Schweda" <sms@antinode.info>]
1681 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1683 *) When rejecting SSL/TLS records due to an incorrect version number, never
1684 update s->server with a new major version number. As of
1685 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1686 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1687 the previous behavior could result in a read attempt at NULL when
1688 receiving specific incorrect SSL/TLS records once record payload
1689 protection is active. (CVE-2010-0740)
1690 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1692 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1693 could be crashed if the relevant tables were not present (e.g. chrooted).
1694 [Tomas Hoger <thoger@redhat.com>]
1696 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1698 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1699 [Martin Olsson, Neel Mehta]
1701 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1702 accommodate for stack sorting, always a write lock!).
1705 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1706 excessive delays in the RAND_poll(): over a minute. As a workaround
1707 include a time check in the inner Heap32Next loop too.
1710 *) The code that handled flushing of data in SSL/TLS originally used the
1711 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1712 the problem outlined in PR#1949. The fix suggested there however can
1713 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1714 of Apache). So instead simplify the code to flush unconditionally.
1715 This should be fine since flushing with no data to flush is a no op.
1718 *) Handle TLS versions 2.0 and later properly and correctly use the
1719 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1720 off ancient servers have a habit of sticking around for a while...
1723 *) Modify compression code so it frees up structures without using the
1724 ex_data callbacks. This works around a problem where some applications
1725 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1726 restarting) then use compression (e.g. SSL with compression) later.
1727 This results in significant per-connection memory leaks and
1728 has caused some security issues including CVE-2008-1678 and
1732 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1733 change when encrypting or decrypting.
1736 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1737 connect and renegotiate with servers which do not support RI.
1738 Until RI is more widely deployed this option is enabled by default.
1741 *) Add "missing" ssl ctrls to clear options and mode.
1744 *) If client attempts to renegotiate and doesn't support RI respond with
1745 a no_renegotiation alert as required by RFC5746. Some renegotiating
1746 TLS clients will continue a connection gracefully when they receive
1747 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1748 waiting for a server hello which it will never receive. Now we treat a
1749 received no_renegotiation alert as a fatal error. This is because
1750 applications requesting a renegotiation might well expect it to succeed
1751 and would have no code in place to handle the server denying it so the
1752 only safe thing to do is to terminate the connection.
1755 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1756 peer supports secure renegotiation and 0 otherwise. Print out peer
1757 renegotiation support in s_client/s_server.
1760 *) Replace the highly broken and deprecated SPKAC certification method with
1761 the updated NID creation version. This should correctly handle UTF8.
1764 *) Implement RFC5746. Re-enable renegotiation but require the extension
1765 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1766 turns out to be a bad idea. It has been replaced by
1767 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1768 SSL_CTX_set_options(). This is really not recommended unless you
1769 know what you are doing.
1770 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1772 *) Fixes to stateless session resumption handling. Use initial_ctx when
1773 issuing and attempting to decrypt tickets in case it has changed during
1774 servername handling. Use a non-zero length session ID when attempting
1775 stateless session resumption: this makes it possible to determine if
1776 a resumption has occurred immediately after receiving server hello
1777 (several places in OpenSSL subtly assume this) instead of later in
1781 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1782 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1783 fixes for a few places where the return code is not checked
1785 [Julia Lawall <julia@diku.dk>]
1787 *) Add --strict-warnings option to Configure script to include devteam
1788 warnings in other configurations.
1791 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1792 makes it possible to install openssl libraries in locations which
1793 have names other than "lib", for example "/usr/lib64" which some
1795 [Steve Henson, based on patch from Jeremy Utley]
1797 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1798 X690 8.9.12 and can produce some misleading textual output of OIDs.
1799 [Steve Henson, reported by Dan Kaminsky]
1801 *) Delete MD2 from algorithm tables. This follows the recommendation in
1802 several standards that it is not used in new applications due to
1803 several cryptographic weaknesses. For binary compatibility reasons
1804 the MD2 API is still compiled in by default.
1807 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1811 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1812 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1814 [Guenter <lists@gknw.net>]
1816 *) Fix the server certificate chain building code to use X509_verify_cert(),
1817 it used to have an ad-hoc builder which was unable to cope with anything
1818 other than a simple chain.
1819 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1821 *) Don't check self signed certificate signatures in X509_verify_cert()
1822 by default (a flag can override this): it just wastes time without
1823 adding any security. As a useful side effect self signed root CAs
1824 with non-FIPS digests are now usable in FIPS mode.
1827 *) In dtls1_process_out_of_seq_message() the check if the current message
1828 is already buffered was missing. For every new message was memory
1829 allocated, allowing an attacker to perform an denial of service attack
1830 with sending out of seq handshake messages until there is no memory
1831 left. Additionally every future messege was buffered, even if the
1832 sequence number made no sense and would be part of another handshake.
1833 So only messages with sequence numbers less than 10 in advance will be
1834 buffered. (CVE-2009-1378)
1835 [Robin Seggelmann, discovered by Daniel Mentz]
1837 *) Records are buffered if they arrive with a future epoch to be
1838 processed after finishing the corresponding handshake. There is
1839 currently no limitation to this buffer allowing an attacker to perform
1840 a DOS attack with sending records with future epochs until there is no
1841 memory left. This patch adds the pqueue_size() function to detemine
1842 the size of a buffer and limits the record buffer to 100 entries.
1844 [Robin Seggelmann, discovered by Daniel Mentz]
1846 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1847 parent structure is freed. (CVE-2009-1379)
1850 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1851 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1854 [Ilya O. <vrghost@gmail.com>]
1856 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1858 *) Disable renegotiation completely - this fixes a severe security
1859 problem (CVE-2009-3555) at the cost of breaking all
1860 renegotiation. Renegotiation can be re-enabled by setting
1861 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1862 run-time. This is really not recommended unless you know what
1866 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1868 *) Don't set val to NULL when freeing up structures, it is freed up by
1869 underlying code. If sizeof(void *) > sizeof(long) this can result in
1870 zeroing past the valid field. (CVE-2009-0789)
1871 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1873 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1874 checked correctly. This would allow some invalid signed attributes to
1875 appear to verify correctly. (CVE-2009-0591)
1876 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1878 *) Reject UniversalString and BMPString types with invalid lengths. This
1879 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1880 a legal length. (CVE-2009-0590)
1883 *) Set S/MIME signing as the default purpose rather than setting it
1884 unconditionally. This allows applications to override it at the store
1888 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1889 to handle some structures.
1892 *) Improve efficiency of mem_gets: don't search whole buffer each time
1894 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1896 *) New -hex option for openssl rand.
1899 *) Print out UTF8String and NumericString when parsing ASN1.
1902 *) Support NumericString type for name components.
1905 *) Allow CC in the environment to override the automatically chosen
1906 compiler. Note that nothing is done to ensure flags work with the
1910 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1912 *) Properly check EVP_VerifyFinal() and similar return values
1914 [Ben Laurie, Bodo Moeller, Google Security Team]
1916 *) Enable TLS extensions by default.
1919 *) Allow the CHIL engine to be loaded, whether the application is
1920 multithreaded or not. (This does not release the developer from the
1921 obligation to set up the dynamic locking callbacks.)
1922 [Sander Temme <sander@temme.net>]
1924 *) Use correct exit code if there is an error in dgst command.
1925 [Steve Henson; problem pointed out by Roland Dirlewanger]
1927 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1928 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1931 *) Add experimental JPAKE support, including demo authentication in
1932 s_client and s_server.
1935 *) Set the comparison function in v3_addr_canonize().
1936 [Rob Austein <sra@hactrn.net>]
1938 *) Add support for XMPP STARTTLS in s_client.
1939 [Philip Paeps <philip@freebsd.org>]
1941 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1942 to ensure that even with this option, only ciphersuites in the
1943 server's preference list will be accepted. (Note that the option
1944 applies only when resuming a session, so the earlier behavior was
1945 just about the algorithm choice for symmetric cryptography.)
1948 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1950 *) Fix NULL pointer dereference if a DTLS server received
1951 ChangeCipherSpec as first record (CVE-2009-1386).
1954 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1955 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1958 *) The fix in 0.9.8c that supposedly got rid of unsafe
1959 double-checked locking was incomplete for RSA blinding,
1960 addressing just one layer of what turns out to have been
1961 doubly unsafe triple-checked locking.
1963 So now fix this for real by retiring the MONT_HELPER macro
1964 in crypto/rsa/rsa_eay.c.
1966 [Bodo Moeller; problem pointed out by Marius Schilder]
1968 *) Various precautionary measures:
1970 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1972 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1973 (NB: This would require knowledge of the secret session ticket key
1974 to exploit, in which case you'd be SOL either way.)
1976 - Change bn_nist.c so that it will properly handle input BIGNUMs
1977 outside the expected range.
1979 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1982 [Neel Mehta, Bodo Moeller]
1984 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1985 the load fails. Useful for distros.
1986 [Ben Laurie and the FreeBSD team]
1988 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1991 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1994 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1996 This work was sponsored by Logica.
1999 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2000 keystores. Support for SSL/TLS client authentication too.
2001 Not compiled unless enable-capieng specified to Configure.
2003 This work was sponsored by Logica.
2006 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2007 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2008 attribute creation routines such as certifcate requests and PKCS#12
2012 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2014 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2015 handshake which could lead to a cilent crash as found using the
2016 Codenomicon TLS test suite (CVE-2008-1672)
2017 [Steve Henson, Mark Cox]
2019 *) Fix double free in TLS server name extensions which could lead to
2020 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2023 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2025 Clear the error queue to ensure that error entries left from
2026 older function calls do not interfere with the correct operation.
2027 [Lutz Jaenicke, Erik de Castro Lopo]
2029 *) Remove root CA certificates of commercial CAs:
2031 The OpenSSL project does not recommend any specific CA and does not
2032 have any policy with respect to including or excluding any CA.
2033 Therefore it does not make any sense to ship an arbitrary selection
2034 of root CA certificates with the OpenSSL software.
2037 *) RSA OAEP patches to fix two separate invalid memory reads.
2038 The first one involves inputs when 'lzero' is greater than
2039 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2040 before the beginning of from). The second one involves inputs where
2041 the 'db' section contains nothing but zeroes (there is a one-byte
2042 invalid read after the end of 'db').
2043 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2045 *) Partial backport from 0.9.9-dev:
2047 Introduce bn_mul_mont (dedicated Montgomery multiplication
2048 procedure) as a candidate for BIGNUM assembler implementation.
2049 While 0.9.9-dev uses assembler for various architectures, only
2050 x86_64 is available by default here in the 0.9.8 branch, and
2051 32-bit x86 is available through a compile-time setting.
2053 To try the 32-bit x86 assembler implementation, use Configure
2054 option "enable-montasm" (which exists only for this backport).
2056 As "enable-montasm" for 32-bit x86 disclaims code stability
2057 anyway, in this constellation we activate additional code
2058 backported from 0.9.9-dev for further performance improvements,
2059 namely BN_from_montgomery_word. (To enable this otherwise,
2060 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2062 [Andy Polyakov (backport partially by Bodo Moeller)]
2064 *) Add TLS session ticket callback. This allows an application to set
2065 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2066 values. This is useful for key rollover for example where several key
2067 sets may exist with different names.
2070 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2071 This was broken until now in 0.9.8 releases, such that the only way
2072 a registered ENGINE could be used (assuming it initialises
2073 successfully on the host) was to explicitly set it as the default
2074 for the relevant algorithms. This is in contradiction with 0.9.7
2075 behaviour and the documentation. With this fix, when an ENGINE is
2076 registered into a given algorithm's table of implementations, the
2077 'uptodate' flag is reset so that auto-discovery will be used next
2078 time a new context for that algorithm attempts to select an
2080 [Ian Lister (tweaked by Geoff Thorpe)]
2082 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2083 implemention in the following ways:
2085 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2088 Lack of BER streaming support means one pass streaming processing is
2089 only supported if data is detached: setting the streaming flag is
2090 ignored for embedded content.
2092 CMS support is disabled by default and must be explicitly enabled
2093 with the enable-cms configuration option.
2096 *) Update the GMP engine glue to do direct copies between BIGNUM and
2097 mpz_t when openssl and GMP use the same limb size. Otherwise the
2098 existing "conversion via a text string export" trick is still used.
2099 [Paul Sheer <paulsheer@gmail.com>]
2101 *) Zlib compression BIO. This is a filter BIO which compressed and
2102 uncompresses any data passed through it.
2105 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2106 RFC3394 compatible AES key wrapping.
2109 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2110 sets string data without copying. X509_ALGOR_set0() and
2111 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2112 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2113 from an X509_ATTRIBUTE structure optionally checking it occurs only
2114 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2118 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2119 to get the expected BN_FLG_CONSTTIME behavior.
2120 [Bodo Moeller (Google)]
2124 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2125 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2126 - added some more tests to do_tests.pl
2127 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2128 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2129 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2130 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2131 - various changes to netware.pl to enable gcc-cross builds on Win32
2133 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2134 - various changes to fix missing prototype warnings
2135 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2136 - added AES, WHIRLPOOL and CPUID assembler code to build files
2137 - added missing AES assembler make rules to mk1mf.pl
2138 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2139 [Guenter Knauf <eflash@gmx.net>]
2141 *) Implement certificate status request TLS extension defined in RFC3546.
2142 A client can set the appropriate parameters and receive the encoded
2143 OCSP response via a callback. A server can query the supplied parameters
2144 and set the encoded OCSP response in the callback. Add simplified examples
2145 to s_client and s_server.
2148 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2150 *) Fix various bugs:
2151 + Binary incompatibility of ssl_ctx_st structure
2152 + DTLS interoperation with non-compliant servers
2153 + Don't call get_session_cb() without proposed session
2154 + Fix ia64 assembler code
2155 [Andy Polyakov, Steve Henson]
2157 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2159 *) DTLS Handshake overhaul. There were longstanding issues with
2160 OpenSSL DTLS implementation, which were making it impossible for
2161 RFC 4347 compliant client to communicate with OpenSSL server.
2162 Unfortunately just fixing these incompatibilities would "cut off"
2163 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2164 server keeps tolerating non RFC compliant syntax. The opposite is
2165 not true, 0.9.8f client can not communicate with earlier server.
2166 This update even addresses CVE-2007-4995.
2169 *) Changes to avoid need for function casts in OpenSSL: some compilers
2170 (gcc 4.2 and later) reject their use.
2171 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2174 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2175 RFC4507bis. The encrypted ticket format is an encrypted encoded
2176 SSL_SESSION structure, that way new session features are automatically
2179 If a client application caches session in an SSL_SESSION structure
2180 support is transparent because tickets are now stored in the encoded
2183 The SSL_CTX structure automatically generates keys for ticket
2184 protection in servers so again support should be possible
2185 with no application modification.
2187 If a client or server wishes to disable RFC4507 support then the option
2188 SSL_OP_NO_TICKET can be set.
2190 Add a TLS extension debugging callback to allow the contents of any client
2191 or server extensions to be examined.
2193 This work was sponsored by Google.
2196 *) Add initial support for TLS extensions, specifically for the server_name
2197 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2198 have new members for a host name. The SSL data structure has an
2199 additional member SSL_CTX *initial_ctx so that new sessions can be
2200 stored in that context to allow for session resumption, even after the
2201 SSL has been switched to a new SSL_CTX in reaction to a client's
2202 server_name extension.
2204 New functions (subject to change):
2206 SSL_get_servername()
2207 SSL_get_servername_type()
2210 New CTRL codes and macros (subject to change):
2212 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2213 - SSL_CTX_set_tlsext_servername_callback()
2214 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2215 - SSL_CTX_set_tlsext_servername_arg()
2216 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2218 openssl s_client has a new '-servername ...' option.
2220 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2221 '-key2 ...', '-servername_fatal' (subject to change). This allows
2222 testing the HostName extension for a specific single host name ('-cert'
2223 and '-key' remain fallbacks for handshakes without HostName
2224 negotiation). If the unrecogninzed_name alert has to be sent, this by
2225 default is a warning; it becomes fatal with the '-servername_fatal'
2228 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2230 *) Add AES and SSE2 assembly language support to VC++ build.
2233 *) Mitigate attack on final subtraction in Montgomery reduction.
2236 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2237 (which previously caused an internal error).
2240 *) Squeeze another 10% out of IGE mode when in != out.
2243 *) AES IGE mode speedup.
2244 [Dean Gaudet (Google)]
2246 *) Add the Korean symmetric 128-bit cipher SEED (see
2247 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2248 add SEED ciphersuites from RFC 4162:
2250 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2251 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2252 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2253 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2255 To minimize changes between patchlevels in the OpenSSL 0.9.8
2256 series, SEED remains excluded from compilation unless OpenSSL
2257 is configured with 'enable-seed'.
2258 [KISA, Bodo Moeller]
2260 *) Mitigate branch prediction attacks, which can be practical if a
2261 single processor is shared, allowing a spy process to extract
2262 information. For detailed background information, see
2263 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2264 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2265 and Necessary Software Countermeasures"). The core of the change
2266 are new versions BN_div_no_branch() and
2267 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2268 respectively, which are slower, but avoid the security-relevant
2269 conditional branches. These are automatically called by BN_div()
2270 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2271 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2272 remove a conditional branch.
2274 BN_FLG_CONSTTIME is the new name for the previous
2275 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2276 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2277 in the exponent causes BN_mod_exp_mont() to use the alternative
2278 implementation in BN_mod_exp_mont_consttime().) The old name
2279 remains as a deprecated alias.
2281 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2282 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2283 constant-time implementations for more than just exponentiation.
2284 Here too the old name is kept as a deprecated alias.
2286 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2287 the BN_BLINDING structure gets an independent copy of the
2288 modulus. This means that the previous "BIGNUM *m" argument to
2289 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2290 essentially becomes "const BIGNUM *m", although we can't actually
2291 change this in the header file before 0.9.9. It allows
2292 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2293 enable BN_FLG_CONSTTIME.
2295 [Matthew D Wood (Intel Corp)]
2297 *) In the SSL/TLS server implementation, be strict about session ID
2298 context matching (which matters if an application uses a single
2299 external cache for different purposes). Previously,
2300 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2301 set. This did ensure strict client verification, but meant that,
2302 with applications using a single external cache for quite
2303 different requirements, clients could circumvent ciphersuite
2304 restrictions for a given session ID context by starting a session
2305 in a different context.
2308 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2309 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2310 authentication-only ciphersuites.
2313 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2314 not complete and could lead to a possible single byte overflow
2315 (CVE-2007-5135) [Ben Laurie]
2317 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2319 *) Since AES128 and AES256 (and similarly Camellia128 and
2320 Camellia256) share a single mask bit in the logic of
2321 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2322 kludge to work properly if AES128 is available and AES256 isn't
2323 (or if Camellia128 is available and Camellia256 isn't).
2326 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2327 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2328 When a point or a seed is encoded in a BIT STRING, we need to
2329 prevent the removal of trailing zero bits to get the proper DER
2330 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2331 of a NamedBitList, for which trailing 0 bits need to be removed.)
2334 *) Have SSL/TLS server implementation tolerate "mismatched" record
2335 protocol version while receiving ClientHello even if the
2336 ClientHello is fragmented. (The server can't insist on the
2337 particular protocol version it has chosen before the ServerHello
2338 message has informed the client about his choice.)
2341 *) Add RFC 3779 support.
2342 [Rob Austein for ARIN, Ben Laurie]
2344 *) Load error codes if they are not already present instead of using a
2345 static variable. This allows them to be cleanly unloaded and reloaded.
2346 Improve header file function name parsing.
2349 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2350 or CAPABILITY handshake as required by RFCs.
2353 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2355 *) Introduce limits to prevent malicious keys being able to
2356 cause a denial of service. (CVE-2006-2940)
2357 [Steve Henson, Bodo Moeller]
2359 *) Fix ASN.1 parsing of certain invalid structures that can result
2360 in a denial of service. (CVE-2006-2937) [Steve Henson]
2362 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2363 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2365 *) Fix SSL client code which could crash if connecting to a
2366 malicious SSLv2 server. (CVE-2006-4343)
2367 [Tavis Ormandy and Will Drewry, Google Security Team]
2369 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2370 match only those. Before that, "AES256-SHA" would be interpreted
2371 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2372 the same strength classification in 0.9.7h) as we currently only
2373 have a single AES bit in the ciphersuite description bitmap.
2374 That change, however, also applied to ciphersuite strings such as
2375 "RC4-MD5" that intentionally matched multiple ciphersuites --
2376 namely, SSL 2.0 ciphersuites in addition to the more common ones
2377 from SSL 3.0/TLS 1.0.
2379 So we change the selection algorithm again: Naming an explicit
2380 ciphersuite selects this one ciphersuite, and any other similar
2381 ciphersuite (same bitmap) from *other* protocol versions.
2382 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2383 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2385 Since SSL 2.0 does not have any ciphersuites for which the
2386 128/256 bit distinction would be relevant, this works for now.
2387 The proper fix will be to use different bits for AES128 and
2388 AES256, which would have avoided the problems from the beginning;
2389 however, bits are scarce, so we can only do this in a new release
2390 (not just a patchlevel) when we can change the SSL_CIPHER
2391 definition to split the single 'unsigned long mask' bitmap into
2392 multiple values to extend the available space.
2396 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2398 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2399 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2401 *) Add AES IGE and biIGE modes.
2404 *) Change the Unix randomness entropy gathering to use poll() when
2405 possible instead of select(), since the latter has some
2406 undesirable limitations.
2407 [Darryl Miles via Richard Levitte and Bodo Moeller]
2409 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2410 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2411 cannot be implicitly activated as part of, e.g., the "AES" alias.
2412 However, please upgrade to OpenSSL 0.9.9[-dev] for
2413 non-experimental use of the ECC ciphersuites to get TLS extension
2414 support, which is required for curve and point format negotiation
2415 to avoid potential handshake problems.
2418 *) Disable rogue ciphersuites:
2420 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2421 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2422 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2424 The latter two were purportedly from
2425 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2428 Also deactivate the remaining ciphersuites from
2429 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2430 unofficial, and the ID has long expired.
2433 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2434 dual-core machines) and other potential thread-safety issues.
2437 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2438 versions), which is now available for royalty-free use
2439 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2440 Also, add Camellia TLS ciphersuites from RFC 4132.
2442 To minimize changes between patchlevels in the OpenSSL 0.9.8
2443 series, Camellia remains excluded from compilation unless OpenSSL
2444 is configured with 'enable-camellia'.
2447 *) Disable the padding bug check when compression is in use. The padding
2448 bug check assumes the first packet is of even length, this is not
2449 necessarily true if compresssion is enabled and can result in false
2450 positives causing handshake failure. The actual bug test is ancient
2451 code so it is hoped that implementations will either have fixed it by
2452 now or any which still have the bug do not support compression.
2455 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2457 *) When applying a cipher rule check to see if string match is an explicit
2458 cipher suite and only match that one cipher suite if it is.
2461 *) Link in manifests for VC++ if needed.
2462 [Austin Ziegler <halostatue@gmail.com>]
2464 *) Update support for ECC-based TLS ciphersuites according to
2465 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2466 TLS extensions, which are supported starting with the 0.9.9
2467 branch, not in the OpenSSL 0.9.8 branch).
2470 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2471 opaque EVP_CIPHER_CTX handling.
2474 *) Fixes and enhancements to zlib compression code. We now only use
2475 "zlib1.dll" and use the default __cdecl calling convention on Win32
2476 to conform with the standards mentioned here:
2477 http://www.zlib.net/DLL_FAQ.txt
2478 Static zlib linking now works on Windows and the new --with-zlib-include
2479 --with-zlib-lib options to Configure can be used to supply the location
2480 of the headers and library. Gracefully handle case where zlib library
2484 *) Several fixes and enhancements to the OID generation code. The old code
2485 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2486 handle numbers larger than ULONG_MAX, truncated printing and had a
2487 non standard OBJ_obj2txt() behaviour.
2490 *) Add support for building of engines under engine/ as shared libraries
2491 under VC++ build system.
2494 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2495 Hopefully, we will not see any false combination of paths any more.
2498 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2500 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2501 (part of SSL_OP_ALL). This option used to disable the
2502 countermeasure against man-in-the-middle protocol-version
2503 rollback in the SSL 2.0 server implementation, which is a bad
2504 idea. (CVE-2005-2969)
2506 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2507 for Information Security, National Institute of Advanced Industrial
2508 Science and Technology [AIST], Japan)]
2510 *) Add two function to clear and return the verify parameter flags.
2513 *) Keep cipherlists sorted in the source instead of sorting them at
2514 runtime, thus removing the need for a lock.
2517 *) Avoid some small subgroup attacks in Diffie-Hellman.
2518 [Nick Mathewson and Ben Laurie]
2520 *) Add functions for well-known primes.
2523 *) Extended Windows CE support.
2524 [Satoshi Nakamura and Andy Polyakov]
2526 *) Initialize SSL_METHOD structures at compile time instead of during
2527 runtime, thus removing the need for a lock.
2530 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2531 attempting to decrypt each encrypted key in turn. Add support to
2535 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2537 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2540 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2543 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2544 key into the same file any more.
2547 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2550 *) Add -utf8 command line and config file option to 'ca'.
2551 [Stefan <stf@udoma.org]
2553 *) Removed the macro des_crypt(), as it seems to conflict with some
2554 libraries. Use DES_crypt().
2557 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2558 involves renaming the source and generated shared-libs for
2559 both. The engines will accept the corrected or legacy ids
2560 ('ncipher' and '4758_cca' respectively) when binding. NB,
2561 this only applies when building 'shared'.
2562 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2564 *) Add attribute functions to EVP_PKEY structure. Modify
2565 PKCS12_create() to recognize a CSP name attribute and
2566 use it. Make -CSP option work again in pkcs12 utility.
2569 *) Add new functionality to the bn blinding code:
2570 - automatic re-creation of the BN_BLINDING parameters after
2571 a fixed number of uses (currently 32)
2572 - add new function for parameter creation
2573 - introduce flags to control the update behaviour of the
2574 BN_BLINDING parameters
2575 - hide BN_BLINDING structure
2576 Add a second BN_BLINDING slot to the RSA structure to improve
2577 performance when a single RSA object is shared among several
2581 *) Add support for DTLS.
2582 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2584 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2585 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2588 *) Remove buggy and incompletet DH cert support from
2589 ssl/ssl_rsa.c and ssl/s3_both.c
2592 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2593 the apps/openssl applications.
2596 *) Compile clean with "-Wall -Wmissing-prototypes
2597 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2598 DEBUG_SAFESTACK must also be set.
2601 *) Change ./Configure so that certain algorithms can be disabled by default.
2602 The new counterpiece to "no-xxx" is "enable-xxx".
2604 The patented RC5 and MDC2 algorithms will now be disabled unless
2605 "enable-rc5" and "enable-mdc2", respectively, are specified.
2607 (IDEA remains enabled despite being patented. This is because IDEA
2608 is frequently required for interoperability, and there is no license
2609 fee for non-commercial use. As before, "no-idea" can be used to
2610 avoid this algorithm.)
2614 *) Add processing of proxy certificates (see RFC 3820). This work was
2615 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2616 EGEE (Enabling Grids for E-science in Europe).
2619 *) RC4 performance overhaul on modern architectures/implementations, such
2620 as Intel P4, IA-64 and AMD64.
2623 *) New utility extract-section.pl. This can be used specify an alternative
2624 section number in a pod file instead of having to treat each file as
2625 a separate case in Makefile. This can be done by adding two lines to the
2628 =for comment openssl_section:XXX
2630 The blank line is mandatory.
2634 *) New arguments -certform, -keyform and -pass for s_client and s_server
2635 to allow alternative format key and certificate files and passphrase
2639 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2640 update associated structures and add various utility functions.
2642 Add new policy related verify parameters, include policy checking in
2643 standard verify code. Enhance 'smime' application with extra parameters
2644 to support policy checking and print out.
2647 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2648 Nehemiah processors. These extensions support AES encryption in hardware
2649 as well as RNG (though RNG support is currently disabled).
2650 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2652 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2655 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2656 [Andy Polyakov and a number of other people]
2658 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2659 implementation contributed by IBM.
2660 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2662 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2663 exponent rather than 'unsigned long'. There is a corresponding change to
2664 the new 'rsa_keygen' element of the RSA_METHOD structure.
2665 [Jelte Jansen, Geoff Thorpe]
2667 *) Functionality for creating the initial serial number file is now
2668 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2670 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2671 number file to 1, which is bound to cause problems. To avoid
2672 the problems while respecting compatibility between different 0.9.7
2673 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2674 CA.pl for serial number initialization. With the new release 0.9.8,
2675 we can fix the problem directly in the 'ca' utility.)
2678 *) Reduced header interdepencies by declaring more opaque objects in
2679 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2680 give fewer recursive includes, which could break lazy source code - so
2681 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2682 developers should define this symbol when building and using openssl to
2683 ensure they track the recommended behaviour, interfaces, [etc], but
2684 backwards-compatible behaviour prevails when this isn't defined.
2687 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2690 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2691 This will generate a random key of the appropriate length based on the
2692 cipher context. The EVP_CIPHER can provide its own random key generation
2693 routine to support keys of a specific form. This is used in the des and
2694 3des routines to generate a key of the correct parity. Update S/MIME
2695 code to use new functions and hence generate correct parity DES keys.
2696 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2697 valid (weak or incorrect parity).
2700 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2701 as looking them up. This is useful when the verified structure may contain
2702 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2703 present unless the new PKCS7_NO_CRL flag is asserted.
2706 *) Extend ASN1 oid configuration module. It now additionally accepts the
2709 shortName = some long name, 1.2.3.4
2712 *) Reimplemented the BN_CTX implementation. There is now no more static
2713 limitation on the number of variables it can handle nor the depth of the
2714 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2715 information can now expand as required, and rather than having a single
2716 static array of bignums, BN_CTX now uses a linked-list of such arrays
2717 allowing it to expand on demand whilst maintaining the usefulness of
2718 BN_CTX's "bundling".
2721 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2722 to allow all RSA operations to function using a single BN_CTX.
2725 *) Preliminary support for certificate policy evaluation and checking. This
2726 is initially intended to pass the tests outlined in "Conformance Testing
2727 of Relying Party Client Certificate Path Processing Logic" v1.07.
2730 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2731 remained unused and not that useful. A variety of other little bignum
2732 tweaks and fixes have also been made continuing on from the audit (see
2736 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2737 associated ASN1, EVP and SSL functions and old ASN1 macros.
2740 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2741 and this should never fail. So the return value from the use of
2742 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2743 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2746 *) BN_CTX_get() should return zero-valued bignums, providing the same
2747 initialised value as BN_new().
2748 [Geoff Thorpe, suggested by Ulf Möller]
2750 *) Support for inhibitAnyPolicy certificate extension.
2753 *) An audit of the BIGNUM code is underway, for which debugging code is
2754 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2755 is considered valid when processing BIGNUMs, and causes execution to
2756 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2757 further steps are taken to deliberately pollute unused data in BIGNUM
2758 structures to try and expose faulty code further on. For now, openssl will
2759 (in its default mode of operation) continue to tolerate the inconsistent
2760 forms that it has tolerated in the past, but authors and packagers should
2761 consider trying openssl and their own applications when compiled with
2762 these debugging symbols defined. It will help highlight potential bugs in
2763 their own code, and will improve the test coverage for OpenSSL itself. At
2764 some point, these tighter rules will become openssl's default to improve
2765 maintainability, though the assert()s and other overheads will remain only
2766 in debugging configurations. See bn.h for more details.
2767 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2769 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2770 that can only be obtained through BN_CTX_new() (which implicitly
2771 initialises it). The presence of this function only made it possible
2772 to overwrite an existing structure (and cause memory leaks).
2775 *) Because of the callback-based approach for implementing LHASH as a
2776 template type, lh_insert() adds opaque objects to hash-tables and
2777 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2778 to clean up those corresponding objects before destroying the hash table
2779 (and losing the object pointers). So some over-zealous constifications in
2780 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2781 objects as "const" and the lh_doall[_arg] callback wrappers are not
2782 prototyped to have "const" restrictions on the object pointers they are
2783 given (and so aren't required to cast them away any more).
2786 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2787 (speed) prefers to use its own implementation. The two implementations
2788 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2789 its object type properly exposed (MS_TM) instead of casting to/from "char
2790 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2791 aren't necessarily the greatest nomenclatures - but this is what was used
2792 internally to the implementation so I've used that for now.
2795 *) Ensure that deprecated functions do not get compiled when
2796 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2797 the self-tests were still using deprecated key-generation functions so
2798 these have been updated also.
2801 *) Reorganise PKCS#7 code to separate the digest location functionality
2802 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2803 New function PKCS7_set_digest() to set the digest type for PKCS#7
2804 digestedData type. Add additional code to correctly generate the
2805 digestedData type and add support for this type in PKCS7 initialization
2809 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2810 structure of type "other".
2813 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2814 sure the loop does correctly stop and breaking ("division by zero")
2815 modulus operations are not performed. The (pre-generated) prime
2816 table crypto/bn/bn_prime.h was already correct, but it could not be
2817 re-generated on some platforms because of the "division by zero"
2818 situation in the script.
2819 [Ralf S. Engelschall]
2821 *) Update support for ECC-based TLS ciphersuites according to
2822 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2823 SHA-1 now is only used for "small" curves (where the
2824 representation of a field element takes up to 24 bytes); for
2825 larger curves, the field element resulting from ECDH is directly
2826 used as premaster secret.
2827 [Douglas Stebila (Sun Microsystems Laboratories)]
2829 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2830 curve secp160r1 to the tests.
2831 [Douglas Stebila (Sun Microsystems Laboratories)]
2833 *) Add the possibility to load symbols globally with DSO.
2834 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2836 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2837 control of the error stack.
2840 *) Add support for STORE in ENGINE.
2843 *) Add the STORE type. The intention is to provide a common interface
2844 to certificate and key stores, be they simple file-based stores, or
2845 HSM-type store, or LDAP stores, or...
2846 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2849 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2850 pass a list of arguments to any function as well as provide a way
2851 for a function to pass data back to the caller.
2854 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2855 works like BUF_strdup() but can be used to duplicate a portion of
2856 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2860 *) Add the function sk_find_ex() which works like sk_find(), but will
2861 return an index to an element even if an exact match couldn't be
2862 found. The index is guaranteed to point at the element where the
2863 searched-for key would be inserted to preserve sorting order.
2866 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2867 takes an extra flags argument for optional functionality. Currently,
2868 the following flags are defined:
2870 OBJ_BSEARCH_VALUE_ON_NOMATCH
2871 This one gets OBJ_bsearch_ex() to return a pointer to the first
2872 element where the comparing function returns a negative or zero
2875 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2876 This one gets OBJ_bsearch_ex() to return a pointer to the first
2877 element where the comparing function returns zero. This is useful
2878 if there are more than one element where the comparing function
2882 *) Make it possible to create self-signed certificates with 'openssl ca'
2883 in such a way that the self-signed certificate becomes part of the
2884 CA database and uses the same mechanisms for serial number generation
2885 as all other certificate signing. The new flag '-selfsign' enables
2886 this functionality. Adapt CA.sh and CA.pl.in.
2889 *) Add functionality to check the public key of a certificate request
2890 against a given private. This is useful to check that a certificate
2891 request can be signed by that key (self-signing).
2894 *) Make it possible to have multiple active certificates with the same
2895 subject in the CA index file. This is done only if the keyword
2896 'unique_subject' is set to 'no' in the main CA section (default
2897 if 'CA_default') of the configuration file. The value is saved
2898 with the database itself in a separate index attribute file,
2899 named like the index file with '.attr' appended to the name.
2902 *) Generate muti valued AVAs using '+' notation in config files for
2906 *) Support for nameConstraints certificate extension.
2909 *) Support for policyConstraints certificate extension.
2912 *) Support for policyMappings certificate extension.
2915 *) Make sure the default DSA_METHOD implementation only uses its
2916 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2917 and change its own handlers to be NULL so as to remove unnecessary
2918 indirection. This lets alternative implementations fallback to the
2919 default implementation more easily.
2922 *) Support for directoryName in GeneralName related extensions
2926 *) Make it possible to link applications using Makefile.shared.
2927 Make that possible even when linking against static libraries!
2930 *) Support for single pass processing for S/MIME signing. This now
2931 means that S/MIME signing can be done from a pipe, in addition
2932 cleartext signing (multipart/signed type) is effectively streaming
2933 and the signed data does not need to be all held in memory.
2935 This is done with a new flag PKCS7_STREAM. When this flag is set
2936 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2937 is done after the data is output (and digests calculated) in
2938 SMIME_write_PKCS7().
2941 *) Add full support for -rpath/-R, both in shared libraries and
2942 applications, at least on the platforms where it's known how
2946 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2947 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2948 will now compute a table of multiples of the generator that
2949 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2950 faster (notably in the case of a single point multiplication,
2951 scalar * generator).
2952 [Nils Larsch, Bodo Moeller]
2954 *) IPv6 support for certificate extensions. The various extensions
2955 which use the IP:a.b.c.d can now take IPv6 addresses using the
2956 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2960 *) Added an ENGINE that implements RSA by performing private key
2961 exponentiations with the GMP library. The conversions to and from
2962 GMP's mpz_t format aren't optimised nor are any montgomery forms
2963 cached, and on x86 it appears OpenSSL's own performance has caught up.
2964 However there are likely to be other architectures where GMP could
2965 provide a boost. This ENGINE is not built in by default, but it can be
2966 specified at Configure time and should be accompanied by the necessary
2967 linker additions, eg;
2968 ./config -DOPENSSL_USE_GMP -lgmp
2971 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2972 testing availability of engines with "-t" - the old behaviour is
2973 produced by increasing the feature's verbosity with "-tt".
2976 *) ECDSA routines: under certain error conditions uninitialized BN objects
2977 could be freed. Solution: make sure initialization is performed early
2978 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2982 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2983 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2984 software implementations. For DSA and DH, parameter generation can
2985 also be overriden by providing the appropriate method callbacks.
2988 *) Change the "progress" mechanism used in key-generation and
2989 primality testing to functions that take a new BN_GENCB pointer in
2990 place of callback/argument pairs. The new API functions have "_ex"
2991 postfixes and the older functions are reimplemented as wrappers for
2992 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2993 declarations of the old functions to help (graceful) attempts to
2994 migrate to the new functions. Also, the new key-generation API
2995 functions operate on a caller-supplied key-structure and return
2996 success/failure rather than returning a key or NULL - this is to
2997 help make "keygen" another member function of RSA_METHOD etc.
2999 Example for using the new callback interface:
3001 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3005 BN_GENCB_set(&my_cb, my_callback, my_arg);
3007 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3008 /* For the meaning of a, b in calls to my_callback(), see the
3009 * documentation of the function that calls the callback.
3010 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3011 * my_callback should return 1 if it wants BN_is_prime_ex()
3012 * to continue, or 0 to stop.
3017 *) Change the ZLIB compression method to be stateful, and make it
3018 available to TLS with the number defined in
3019 draft-ietf-tls-compression-04.txt.
3022 *) Add the ASN.1 structures and functions for CertificatePair, which
3023 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3025 CertificatePair ::= SEQUENCE {
3026 forward [0] Certificate OPTIONAL,
3027 reverse [1] Certificate OPTIONAL,
3028 -- at least one of the pair shall be present -- }
3030 Also implement the PEM functions to read and write certificate
3031 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3033 This needed to be defined, mostly for the sake of the LDAP
3034 attribute crossCertificatePair, but may prove useful elsewhere as
3038 *) Make it possible to inhibit symlinking of shared libraries in
3039 Makefile.shared, for Cygwin's sake.
3042 *) Extend the BIGNUM API by creating a function
3043 void BN_set_negative(BIGNUM *a, int neg);
3044 and a macro that behave like
3045 int BN_is_negative(const BIGNUM *a);
3047 to avoid the need to access 'a->neg' directly in applications.
3050 *) Implement fast modular reduction for pseudo-Mersenne primes
3051 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3052 EC_GROUP_new_curve_GFp() will now automatically use this
3054 [Nils Larsch <nla@trustcenter.de>]
3056 *) Add new lock type (CRYPTO_LOCK_BN).
3059 *) Change the ENGINE framework to automatically load engines
3060 dynamically from specific directories unless they could be
3061 found to already be built in or loaded. Move all the
3062 current engines except for the cryptodev one to a new
3064 The engines in engines/ are built as shared libraries if
3065 the "shared" options was given to ./Configure or ./config.
3066 Otherwise, they are inserted in libcrypto.a.
3067 /usr/local/ssl/engines is the default directory for dynamic
3068 engines, but that can be overriden at configure time through
3069 the usual use of --prefix and/or --openssldir, and at run
3070 time with the environment variable OPENSSL_ENGINES.
3071 [Geoff Thorpe and Richard Levitte]
3073 *) Add Makefile.shared, a helper makefile to build shared
3074 libraries. Addapt Makefile.org.
3077 *) Add version info to Win32 DLLs.
3078 [Peter 'Luna' Runestig" <peter@runestig.com>]
3080 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3081 can be added using this API to created arbitrary PKCS#12
3082 files while avoiding the low level API.
3084 New options to PKCS12_create(), key or cert can be NULL and
3085 will then be omitted from the output file. The encryption
3086 algorithm NIDs can be set to -1 for no encryption, the mac
3087 iteration count can be set to 0 to omit the mac.
3089 Enhance pkcs12 utility by making the -nokeys and -nocerts
3090 options work when creating a PKCS#12 file. New option -nomac
3091 to omit the mac, NONE can be set for an encryption algorithm.
3092 New code is modified to use the enhanced PKCS12_create()
3093 instead of the low level API.
3096 *) Extend ASN1 encoder to support indefinite length constructed
3097 encoding. This can output sequences tags and octet strings in
3098 this form. Modify pk7_asn1.c to support indefinite length
3099 encoding. This is experimental and needs additional code to
3100 be useful, such as an ASN1 bio and some enhanced streaming
3103 Extend template encode functionality so that tagging is passed
3104 down to the template encoder.
3107 *) Let 'openssl req' fail if an argument to '-newkey' is not
3108 recognized instead of using RSA as a default.
3111 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3112 As these are not official, they are not included in "ALL";
3113 the "ECCdraft" ciphersuite group alias can be used to select them.
3114 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3116 *) Add ECDH engine support.
3117 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3119 *) Add ECDH in new directory crypto/ecdh/.
3120 [Douglas Stebila (Sun Microsystems Laboratories)]
3122 *) Let BN_rand_range() abort with an error after 100 iterations
3123 without success (which indicates a broken PRNG).
3126 *) Change BN_mod_sqrt() so that it verifies that the input value
3127 is really the square of the return value. (Previously,
3128 BN_mod_sqrt would show GIGO behaviour.)
3131 *) Add named elliptic curves over binary fields from X9.62, SECG,
3132 and WAP/WTLS; add OIDs that were still missing.
3134 [Sheueling Chang Shantz and Douglas Stebila
3135 (Sun Microsystems Laboratories)]
3137 *) Extend the EC library for elliptic curves over binary fields
3138 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3141 EC_GF2m_simple_method
3145 EC_GROUP_new_curve_GF2m
3146 EC_GROUP_set_curve_GF2m
3147 EC_GROUP_get_curve_GF2m
3148 EC_POINT_set_affine_coordinates_GF2m
3149 EC_POINT_get_affine_coordinates_GF2m
3150 EC_POINT_set_compressed_coordinates_GF2m
3152 Point compression for binary fields is disabled by default for
3153 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3156 As binary polynomials are represented as BIGNUMs, various members
3157 of the EC_GROUP and EC_POINT data structures can be shared
3158 between the implementations for prime fields and binary fields;
3159 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3160 are essentially identical to their ..._GFp counterparts.
3161 (For simplicity, the '..._GFp' prefix has been dropped from
3162 various internal method names.)
3164 An internal 'field_div' method (similar to 'field_mul' and
3165 'field_sqr') has been added; this is used only for binary fields.
3167 [Sheueling Chang Shantz and Douglas Stebila
3168 (Sun Microsystems Laboratories)]
3170 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3171 through methods ('mul', 'precompute_mult').
3173 The generic implementations (now internally called 'ec_wNAF_mul'
3174 and 'ec_wNAF_precomputed_mult') remain the default if these
3175 methods are undefined.
3177 [Sheueling Chang Shantz and Douglas Stebila
3178 (Sun Microsystems Laboratories)]
3180 *) New function EC_GROUP_get_degree, which is defined through
3181 EC_METHOD. For curves over prime fields, this returns the bit
3182 length of the modulus.
3184 [Sheueling Chang Shantz and Douglas Stebila
3185 (Sun Microsystems Laboratories)]
3187 *) New functions EC_GROUP_dup, EC_POINT_dup.
3188 (These simply call ..._new and ..._copy).
3190 [Sheueling Chang Shantz and Douglas Stebila
3191 (Sun Microsystems Laboratories)]
3193 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3194 Polynomials are represented as BIGNUMs (where the sign bit is not
3195 used) in the following functions [macros]:
3198 BN_GF2m_sub [= BN_GF2m_add]
3199 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3200 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3201 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3203 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3204 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3205 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3206 BN_GF2m_cmp [= BN_ucmp]
3208 (Note that only the 'mod' functions are actually for fields GF(2^m).
3209 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3211 For some functions, an the irreducible polynomial defining a
3212 field can be given as an 'unsigned int[]' with strictly
3213 decreasing elements giving the indices of those bits that are set;
3214 i.e., p[] represents the polynomial
3215 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3217 p[0] > p[1] > ... > p[k] = 0.
3218 This applies to the following functions:
3223 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3224 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3226 BN_GF2m_mod_sqrt_arr
3227 BN_GF2m_mod_solve_quad_arr
3231 Conversion can be performed by the following functions:
3236 bntest.c has additional tests for binary polynomial arithmetic.
3238 Two implementations for BN_GF2m_mod_div() are available.
3239 The default algorithm simply uses BN_GF2m_mod_inv() and
3240 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3241 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3242 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3244 [Sheueling Chang Shantz and Douglas Stebila
3245 (Sun Microsystems Laboratories)]
3247 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3248 functionality is disabled at compile-time.
3249 [Douglas Stebila <douglas.stebila@sun.com>]
3251 *) Change default behaviour of 'openssl asn1parse' so that more
3252 information is visible when viewing, e.g., a certificate:
3254 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3255 mode the content of non-printable OCTET STRINGs is output in a
3256 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3257 avoid the appearance of a printable string.
3258 [Nils Larsch <nla@trustcenter.de>]
3260 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3262 EC_GROUP_set_asn1_flag()
3263 EC_GROUP_get_asn1_flag()
3264 EC_GROUP_set_point_conversion_form()
3265 EC_GROUP_get_point_conversion_form()
3266 These control ASN1 encoding details:
3267 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3268 has been set to OPENSSL_EC_NAMED_CURVE.
3269 - Points are encoded in uncompressed form by default; options for
3270 asn1_for are as for point2oct, namely
3271 POINT_CONVERSION_COMPRESSED
3272 POINT_CONVERSION_UNCOMPRESSED
3273 POINT_CONVERSION_HYBRID
3275 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3278 EC_GROUP_get0_seed()
3279 EC_GROUP_get_seed_len()
3280 This is used only for ASN1 purposes (so far).
3281 [Nils Larsch <nla@trustcenter.de>]
3283 *) Add 'field_type' member to EC_METHOD, which holds the NID
3284 of the appropriate field type OID. The new function
3285 EC_METHOD_get_field_type() returns this value.
3286 [Nils Larsch <nla@trustcenter.de>]
3291 EC_POINT_point2hex()
3292 EC_POINT_hex2point()
3293 providing useful interfaces to EC_POINT_point2oct() and
3294 EC_POINT_oct2point().
3295 [Nils Larsch <nla@trustcenter.de>]
3297 *) Change internals of the EC library so that the functions
3298 EC_GROUP_set_generator()
3299 EC_GROUP_get_generator()
3300 EC_GROUP_get_order()
3301 EC_GROUP_get_cofactor()
3302 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3303 to methods, which would lead to unnecessary code duplication when
3304 adding different types of curves.
3305 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3307 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3308 arithmetic, and such that modified wNAFs are generated
3309 (which avoid length expansion in many cases).
3312 *) Add a function EC_GROUP_check_discriminant() (defined via
3313 EC_METHOD) that verifies that the curve discriminant is non-zero.
3315 Add a function EC_GROUP_check() that makes some sanity tests
3316 on a EC_GROUP, its generator and order. This includes
3317 EC_GROUP_check_discriminant().
3318 [Nils Larsch <nla@trustcenter.de>]
3320 *) Add ECDSA in new directory crypto/ecdsa/.
3322 Add applications 'openssl ecparam' and 'openssl ecdsa'
3323 (these are based on 'openssl dsaparam' and 'openssl dsa').
3325 ECDSA support is also included in various other files across the
3326 library. Most notably,
3327 - 'openssl req' now has a '-newkey ecdsa:file' option;
3328 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3329 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3330 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3331 them suitable for ECDSA where domain parameters must be
3332 extracted before the specific public key;
3333 - ECDSA engine support has been added.
3334 [Nils Larsch <nla@trustcenter.de>]
3336 *) Include some named elliptic curves, and add OIDs from X9.62,
3337 SECG, and WAP/WTLS. Each curve can be obtained from the new
3339 EC_GROUP_new_by_curve_name(),
3340 and the list of available named curves can be obtained with
3341 EC_get_builtin_curves().
3342 Also add a 'curve_name' member to EC_GROUP objects, which can be
3344 EC_GROUP_set_curve_name()
3345 EC_GROUP_get_curve_name()
3346 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3348 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3349 was actually never needed) and in BN_mul(). The removal in BN_mul()
3350 required a small change in bn_mul_part_recursive() and the addition
3351 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3352 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3353 bn_sub_words() and bn_add_words() except they take arrays with
3357 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3359 *) Cleanse PEM buffers before freeing them since they may contain
3361 [Benjamin Bennett <ben@psc.edu>]
3363 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3364 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3365 authentication-only ciphersuites.
3368 *) Since AES128 and AES256 share a single mask bit in the logic of
3369 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3370 kludge to work properly if AES128 is available and AES256 isn't.
3373 *) Expand security boundary to match 1.1.1 module.
3376 *) Remove redundant features: hash file source, editing of test vectors
3377 modify fipsld to use external fips_premain.c signature.
3380 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3381 run algorithm test programs.
3384 *) Make algorithm test programs more tolerant of whitespace.
3387 *) Have SSL/TLS server implementation tolerate "mismatched" record
3388 protocol version while receiving ClientHello even if the
3389 ClientHello is fragmented. (The server can't insist on the
3390 particular protocol version it has chosen before the ServerHello
3391 message has informed the client about his choice.)
3394 *) Load error codes if they are not already present instead of using a
3395 static variable. This allows them to be cleanly unloaded and reloaded.
3398 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3400 *) Introduce limits to prevent malicious keys being able to
3401 cause a denial of service. (CVE-2006-2940)
3402 [Steve Henson, Bodo Moeller]
3404 *) Fix ASN.1 parsing of certain invalid structures that can result
3405 in a denial of service. (CVE-2006-2937) [Steve Henson]
3407 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3408 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3410 *) Fix SSL client code which could crash if connecting to a
3411 malicious SSLv2 server. (CVE-2006-4343)
3412 [Tavis Ormandy and Will Drewry, Google Security Team]
3414 *) Change ciphersuite string processing so that an explicit
3415 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3416 will no longer include "AES128-SHA"), and any other similar
3417 ciphersuite (same bitmap) from *other* protocol versions (so that
3418 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3419 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3420 changes from 0.9.8b and 0.9.8d.
3423 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3425 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3426 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3428 *) Change the Unix randomness entropy gathering to use poll() when
3429 possible instead of select(), since the latter has some
3430 undesirable limitations.
3431 [Darryl Miles via Richard Levitte and Bodo Moeller]
3433 *) Disable rogue ciphersuites:
3435 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3436 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3437 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3439 The latter two were purportedly from
3440 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3443 Also deactive the remaining ciphersuites from
3444 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3445 unofficial, and the ID has long expired.
3448 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3449 dual-core machines) and other potential thread-safety issues.
3452 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3454 *) Adapt fipsld and the build system to link against the validated FIPS
3455 module in FIPS mode.
3458 *) Fixes for VC++ 2005 build under Windows.
3461 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3462 from a Windows bash shell such as MSYS. It is autodetected from the
3463 "config" script when run from a VC++ environment. Modify standard VC++
3464 build to use fipscanister.o from the GNU make build.
3467 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3469 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3470 The value now differs depending on if you build for FIPS or not.
3471 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3472 safely run with a non-FIPSed libcrypto, as it may crash because of
3473 the difference induced by this change.
3476 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3478 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3479 (part of SSL_OP_ALL). This option used to disable the
3480 countermeasure against man-in-the-middle protocol-version
3481 rollback in the SSL 2.0 server implementation, which is a bad
3482 idea. (CVE-2005-2969)
3484 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3485 for Information Security, National Institute of Advanced Industrial
3486 Science and Technology [AIST], Japan)]
3488 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3489 mainly for FIPS compliance and not fully integrated at this stage.
3492 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3493 the exponentiation using a fixed-length exponent. (Otherwise,
3494 the information leaked through timing could expose the secret key
3495 after many signatures; cf. Bleichenbacher's attack on DSA with
3499 *) Make a new fixed-window mod_exp implementation the default for
3500 RSA, DSA, and DH private-key operations so that the sequence of
3501 squares and multiplies and the memory access pattern are
3502 independent of the particular secret key. This will mitigate
3503 cache-timing and potential related attacks.
3505 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3506 and this is automatically used by BN_mod_exp_mont() if the new flag
3507 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3508 will use this BN flag for private exponents unless the flag
3509 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3510 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3512 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3514 *) Change the client implementation for SSLv23_method() and
3515 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3516 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3517 (Previously, the SSL 2.0 backwards compatible Client Hello
3518 message format would be used even with SSL_OP_NO_SSLv2.)
3521 *) Add support for smime-type MIME parameter in S/MIME messages which some
3525 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3526 a threadsafe manner. Modify rsa code to use new function and add calls
3527 to dsa and dh code (which had race conditions before).
3530 *) Include the fixed error library code in the C error file definitions
3531 instead of fixing them up at runtime. This keeps the error code
3532 structures constant.
3535 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3537 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3540 *) Fixes for newer kerberos headers. NB: the casts are needed because
3541 the 'length' field is signed on one version and unsigned on another
3542 with no (?) obvious way to tell the difference, without these VC++
3543 complains. Also the "definition" of FAR (blank) is no longer included
3544 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3545 some needed definitions.
3548 *) Undo Cygwin change.
3551 *) Added support for proxy certificates according to RFC 3820.
3552 Because they may be a security thread to unaware applications,
3553 they must be explicitely allowed in run-time. See
3554 docs/HOWTO/proxy_certificates.txt for further information.
3557 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3559 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3560 server and client random values. Previously
3561 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3562 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3564 This change has negligible security impact because:
3566 1. Server and client random values still have 24 bytes of pseudo random
3569 2. Server and client random values are sent in the clear in the initial
3572 3. The master secret is derived using the premaster secret (48 bytes in
3573 size for static RSA ciphersuites) as well as client server and random
3576 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3579 [Stephen Henson, reported by UK NISCC]
3581 *) Use Windows randomness collection on Cygwin.
3584 *) Fix hang in EGD/PRNGD query when communication socket is closed
3585 prematurely by EGD/PRNGD.
3586 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3588 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3591 *) Back-port of selected performance improvements from development
3592 branch, as well as improved support for PowerPC platforms.
3595 *) Add lots of checks for memory allocation failure, error codes to indicate
3596 failure and freeing up memory if a failure occurs.
3597 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3599 *) Add new -passin argument to dgst.
3602 *) Perform some character comparisons of different types in X509_NAME_cmp:
3603 this is needed for some certificates that reencode DNs into UTF8Strings
3604 (in violation of RFC3280) and can't or wont issue name rollover
3608 *) Make an explicit check during certificate validation to see that
3609 the CA setting in each certificate on the chain is correct. As a
3610 side effect always do the following basic checks on extensions,
3611 not just when there's an associated purpose to the check:
3613 - if there is an unhandled critical extension (unless the user
3614 has chosen to ignore this fault)
3615 - if the path length has been exceeded (if one is set at all)
3616 - that certain extensions fit the associated purpose (if one has
3620 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3622 *) Avoid a race condition when CRLs are checked in a multi threaded
3623 environment. This would happen due to the reordering of the revoked
3624 entries during signature checking and serial number lookup. Now the
3625 encoding is cached and the serial number sort performed under a lock.
3626 Add new STACK function sk_is_sorted().
3629 *) Add Delta CRL to the extension code.
3632 *) Various fixes to s3_pkt.c so alerts are sent properly.
3633 [David Holmes <d.holmes@f5.com>]
3635 *) Reduce the chances of duplicate issuer name and serial numbers (in
3636 violation of RFC3280) using the OpenSSL certificate creation utilities.
3637 This is done by creating a random 64 bit value for the initial serial
3638 number when a serial number file is created or when a self signed
3639 certificate is created using 'openssl req -x509'. The initial serial
3640 number file is created using 'openssl x509 -next_serial' in CA.pl
3641 rather than being initialized to 1.
3644 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3646 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3647 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3648 [Joe Orton, Steve Henson]
3650 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3652 [Joe Orton, Steve Henson]
3654 *) Make it possible to have multiple active certificates with the same
3655 subject in the CA index file. This is done only if the keyword
3656 'unique_subject' is set to 'no' in the main CA section (default
3657 if 'CA_default') of the configuration file. The value is saved
3658 with the database itself in a separate index attribute file,
3659 named like the index file with '.attr' appended to the name.
3662 *) X509 verify fixes. Disable broken certificate workarounds when
3663 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3664 keyUsage extension present. Don't accept CRLs with unhandled critical
3665 extensions: since verify currently doesn't process CRL extensions this
3666 rejects a CRL with *any* critical extensions. Add new verify error codes
3670 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3671 A clarification of RFC2560 will require the use of OCTET STRINGs and
3672 some implementations cannot handle the current raw format. Since OpenSSL
3673 copies and compares OCSP nonces as opaque blobs without any attempt at
3674 parsing them this should not create any compatibility issues.
3677 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3678 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3679 this HMAC (and other) operations are several times slower than OpenSSL
3683 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3684 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3686 *) Use the correct content when signing type "other".
3689 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3691 *) Fix various bugs revealed by running the NISCC test suite:
3693 Stop out of bounds reads in the ASN1 code when presented with
3694 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3696 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3698 If verify callback ignores invalid public key errors don't try to check
3699 certificate signature with the NULL public key.
3703 *) New -ignore_err option in ocsp application to stop the server
3704 exiting on the first error in a request.
3707 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3708 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3712 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3713 extra data after the compression methods not only for TLS 1.0
3714 but also for SSL 3.0 (as required by the specification).
3715 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3717 *) Change X509_certificate_type() to mark the key as exported/exportable
3718 when it's 512 *bits* long, not 512 bytes.
3721 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3722 blocks during encryption.
3725 *) Various fixes to base64 BIO and non blocking I/O. On write
3726 flushes were not handled properly if the BIO retried. On read
3727 data was not being buffered properly and had various logic bugs.
3728 This also affects blocking I/O when the data being decoded is a
3732 *) Various S/MIME bugfixes and compatibility changes:
3733 output correct application/pkcs7 MIME type if
3734 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3735 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3736 of files as .eml work). Correctly handle very long lines in MIME
3740 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3742 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3743 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3744 a protocol version number mismatch like a decryption error
3745 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3748 *) Turn on RSA blinding by default in the default implementation
3749 to avoid a timing attack. Applications that don't want it can call
3750 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3751 They would be ill-advised to do so in most cases.
3752 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3754 *) Change RSA blinding code so that it works when the PRNG is not
3755 seeded (in this case, the secret RSA exponent is abused as
3756 an unpredictable seed -- if it is not unpredictable, there
3757 is no point in blinding anyway). Make RSA blinding thread-safe
3758 by remembering the creator's thread ID in rsa->blinding and
3759 having all other threads use local one-time blinding factors
3760 (this requires more computation than sharing rsa->blinding, but
3761 avoids excessive locking; and if an RSA object is not shared
3762 between threads, blinding will still be very fast).
3765 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3766 ENGINE as defaults for all supported algorithms irrespective of
3767 the 'flags' parameter. 'flags' is now honoured, so applications
3768 should make sure they are passing it correctly.
3771 *) Target "mingw" now allows native Windows code to be generated in
3772 the Cygwin environment as well as with the MinGW compiler.
3775 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3777 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3778 via timing by performing a MAC computation even if incorrrect
3779 block cipher padding has been found. This is a countermeasure
3780 against active attacks where the attacker has to distinguish
3781 between bad padding and a MAC verification error. (CVE-2003-0078)
3783 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3784 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3785 Martin Vuagnoux (EPFL, Ilion)]
3787 *) Make the no-err option work as intended. The intention with no-err
3788 is not to have the whole error stack handling routines removed from
3789 libcrypto, it's only intended to remove all the function name and
3790 reason texts, thereby removing some of the footprint that may not
3791 be interesting if those errors aren't displayed anyway.
3793 NOTE: it's still possible for any application or module to have it's
3794 own set of error texts inserted. The routines are there, just not
3795 used by default when no-err is given.
3798 *) Add support for FreeBSD on IA64.
3799 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3801 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3802 Kerberos function mit_des_cbc_cksum(). Before this change,
3803 the value returned by DES_cbc_cksum() was like the one from
3804 mit_des_cbc_cksum(), except the bytes were swapped.
3805 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3807 *) Allow an application to disable the automatic SSL chain building.
3808 Before this a rather primitive chain build was always performed in
3809 ssl3_output_cert_chain(): an application had no way to send the
3810 correct chain if the automatic operation produced an incorrect result.
3812 Now the chain builder is disabled if either:
3814 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3816 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3818 The reasoning behind this is that an application would not want the
3819 auto chain building to take place if extra chain certificates are
3820 present and it might also want a means of sending no additional
3821 certificates (for example the chain has two certificates and the
3825 *) Add the possibility to build without the ENGINE framework.
3826 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3828 *) Under Win32 gmtime() can return NULL: check return value in
3829 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3832 *) DSA routines: under certain error conditions uninitialized BN objects
3833 could be freed. Solution: make sure initialization is performed early
3834 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3835 Nils Larsch <nla@trustcenter.de> via PR#459)
3838 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3839 checked on reconnect on the client side, therefore session resumption
3840 could still fail with a "ssl session id is different" error. This
3841 behaviour is masked when SSL_OP_ALL is used due to
3842 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3843 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3844 followup to PR #377.
3847 *) IA-32 assembler support enhancements: unified ELF targets, support
3848 for SCO/Caldera platforms, fix for Cygwin shared build.
3851 *) Add support for FreeBSD on sparc64. As a consequence, support for
3852 FreeBSD on non-x86 processors is separate from x86 processors on
3853 the config script, much like the NetBSD support.
3854 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3856 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3858 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3861 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3862 code (06) was taken as the first octet of the session ID and the last
3863 octet was ignored consequently. As a result SSLv2 client side session
3864 caching could not have worked due to the session ID mismatch between
3866 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3870 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3871 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3875 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3876 seems that in spite of existing for more than a year, many application
3877 author have done nothing to provide the necessary callbacks, which
3878 means that this particular engine will not work properly anywhere.
3879 This is a very unfortunate situation which forces us, in the name
3880 of usability, to give the hw_ncipher.c a static lock, which is part
3882 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3883 appear in 0.9.8 or later. We EXPECT application authors to have
3884 dealt properly with this when 0.9.8 is released (unless we actually
3885 make such changes in the libcrypto locking code that changes will
3886 have to be made anyway).
3889 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3890 octets have been read, EOF or an error occurs. Without this change
3891 some truncated ASN1 structures will not produce an error.
3894 *) Disable Heimdal support, since it hasn't been fully implemented.
3895 Still give the possibility to force the use of Heimdal, but with
3896 warnings and a request that patches get sent to openssl-dev.
3899 *) Add the VC-CE target, introduce the WINCE sysname, and add
3900 INSTALL.WCE and appropriate conditionals to make it build.
3901 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3903 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3904 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3905 edit numbers of the version.
3906 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3908 *) Introduce safe string copy and catenation functions
3909 (BUF_strlcpy() and BUF_strlcat()).
3910 [Ben Laurie (CHATS) and Richard Levitte]
3912 *) Avoid using fixed-size buffers for one-line DNs.
3913 [Ben Laurie (CHATS)]
3915 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3916 resizing buffers containing secrets, and use where appropriate.
3917 [Ben Laurie (CHATS)]
3919 *) Avoid using fixed size buffers for configuration file location.
3920 [Ben Laurie (CHATS)]
3922 *) Avoid filename truncation for various CA files.
3923 [Ben Laurie (CHATS)]
3925 *) Use sizeof in preference to magic numbers.
3926 [Ben Laurie (CHATS)]
3928 *) Avoid filename truncation in cert requests.
3929 [Ben Laurie (CHATS)]
3931 *) Add assertions to check for (supposedly impossible) buffer
3933 [Ben Laurie (CHATS)]
3935 *) Don't cache truncated DNS entries in the local cache (this could
3936 potentially lead to a spoofing attack).
3937 [Ben Laurie (CHATS)]
3939 *) Fix various buffers to be large enough for hex/decimal
3940 representations in a platform independent manner.
3941 [Ben Laurie (CHATS)]
3943 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3944 resizing buffers containing secrets, and use where appropriate.
3945 [Ben Laurie (CHATS)]
3947 *) Add BIO_indent() to avoid much slightly worrying code to do
3949 [Ben Laurie (CHATS)]
3951 *) Convert sprintf()/BIO_puts() to BIO_printf().
3952 [Ben Laurie (CHATS)]
3954 *) buffer_gets() could terminate with the buffer only half
3956 [Ben Laurie (CHATS)]
3958 *) Add assertions to prevent user-supplied crypto functions from
3959 overflowing internal buffers by having large block sizes, etc.
3960 [Ben Laurie (CHATS)]
3962 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3964 [Ben Laurie (CHATS)]
3966 *) Eliminate unused copy of key in RC4.
3967 [Ben Laurie (CHATS)]
3969 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3970 [Ben Laurie (CHATS)]
3972 *) Fix off-by-one error in EGD path.
3973 [Ben Laurie (CHATS)]
3975 *) If RANDFILE path is too long, ignore instead of truncating.
3976 [Ben Laurie (CHATS)]
3978 *) Eliminate unused and incorrectly sized X.509 structure
3980 [Ben Laurie (CHATS)]
3982 *) Eliminate unused and dangerous function knumber().
3983 [Ben Laurie (CHATS)]
3985 *) Eliminate unused and dangerous structure, KSSL_ERR.
3986 [Ben Laurie (CHATS)]
3988 *) Protect against overlong session ID context length in an encoded
3989 session object. Since these are local, this does not appear to be
3991 [Ben Laurie (CHATS)]
3993 *) Change from security patch (see 0.9.6e below) that did not affect
3994 the 0.9.6 release series:
3996 Remote buffer overflow in SSL3 protocol - an attacker could
3997 supply an oversized master key in Kerberos-enabled versions.
3999 [Ben Laurie (CHATS)]
4001 *) Change the SSL kerb5 codes to match RFC 2712.
4004 *) Make -nameopt work fully for req and add -reqopt switch.
4005 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4007 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4008 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4010 *) Make sure tests can be performed even if the corresponding algorithms
4011 have been removed entirely. This was also the last step to make
4012 OpenSSL compilable with DJGPP under all reasonable conditions.
4013 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4015 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4016 to allow version independent disabling of normally unselected ciphers,
4017 which may be activated as a side-effect of selecting a single cipher.
4019 (E.g., cipher list string "RSA" enables ciphersuites that are left
4020 out of "ALL" because they do not provide symmetric encryption.
4021 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4022 [Lutz Jaenicke, Bodo Moeller]
4024 *) Add appropriate support for separate platform-dependent build
4025 directories. The recommended way to make a platform-dependent
4026 build directory is the following (tested on Linux), maybe with
4029 # Place yourself outside of the OpenSSL source tree. In
4030 # this example, the environment variable OPENSSL_SOURCE
4031 # is assumed to contain the absolute OpenSSL source directory.
4032 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4033 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4034 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4035 mkdir -p `dirname $F`
4036 ln -s $OPENSSL_SOURCE/$F $F
4039 To be absolutely sure not to disturb the source tree, a "make clean"
4040 is a good thing. If it isn't successfull, don't worry about it,
4041 it probably means the source directory is very clean.
4044 *) Make sure any ENGINE control commands make local copies of string
4045 pointers passed to them whenever necessary. Otherwise it is possible
4046 the caller may have overwritten (or deallocated) the original string
4047 data when a later ENGINE operation tries to use the stored values.
4048 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4050 *) Improve diagnostics in file reading and command-line digests.
4051 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4053 *) Add AES modes CFB and OFB to the object database. Correct an
4054 error in AES-CFB decryption.
4057 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4058 allows existing EVP_CIPHER_CTX structures to be reused after
4059 calling EVP_*Final(). This behaviour is used by encryption
4060 BIOs and some applications. This has the side effect that
4061 applications must explicitly clean up cipher contexts with
4062 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4065 *) Check the values of dna and dnb in bn_mul_recursive before calling
4066 bn_mul_comba (a non zero value means the a or b arrays do not contain
4067 n2 elements) and fallback to bn_mul_normal if either is not zero.
4070 *) Fix escaping of non-ASCII characters when using the -subj option
4071 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4074 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4075 form for "surname", serialNumber has no short form.
4076 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4077 therefore remove "mail" short name for "internet 7".
4078 The OID for unique identifiers in X509 certificates is
4079 x500UniqueIdentifier, not uniqueIdentifier.
4080 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4083 *) Add an "init" command to the ENGINE config module and auto initialize
4084 ENGINEs. Without any "init" command the ENGINE will be initialized
4085 after all ctrl commands have been executed on it. If init=1 the
4086 ENGINE is initailized at that point (ctrls before that point are run
4087 on the uninitialized ENGINE and after on the initialized one). If
4088 init=0 then the ENGINE will not be iniatialized at all.
4091 *) Fix the 'app_verify_callback' interface so that the user-defined
4092 argument is actually passed to the callback: In the
4093 SSL_CTX_set_cert_verify_callback() prototype, the callback
4094 declaration has been changed from
4097 int (*cb)(X509_STORE_CTX *,void *);
4098 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4099 i=s->ctx->app_verify_callback(&ctx)
4100 has been changed into
4101 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4103 To update applications using SSL_CTX_set_cert_verify_callback(),
4104 a dummy argument can be added to their callback functions.
4105 [D. K. Smetters <smetters@parc.xerox.com>]
4107 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4108 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4110 *) Add and OPENSSL_LOAD_CONF define which will cause
4111 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4112 This allows older applications to transparently support certain
4113 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4114 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4115 load the config file and OPENSSL_add_all_algorithms_conf() which will
4116 always load it have also been added.
4119 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4120 Adjust NIDs and EVP layer.
4121 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4123 *) Config modules support in openssl utility.
4125 Most commands now load modules from the config file,
4126 though in a few (such as version) this isn't done
4127 because it couldn't be used for anything.
4129 In the case of ca and req the config file used is
4130 the same as the utility itself: that is the -config
4131 command line option can be used to specify an
4135 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4136 use "openssl_conf" if filename is NULL use default openssl config file.
4139 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4140 config section name. Add a new flag to tolerate a missing config file
4141 and move code to CONF_modules_load_file().
4144 *) Support for crypto accelerator cards from Accelerated Encryption
4145 Processing, www.aep.ie. (Use engine 'aep')
4146 The support was copied from 0.9.6c [engine] and adapted/corrected
4147 to work with the new engine framework.
4148 [AEP Inc. and Richard Levitte]
4150 *) Support for SureWare crypto accelerator cards from Baltimore
4151 Technologies. (Use engine 'sureware')
4152 The support was copied from 0.9.6c [engine] and adapted
4153 to work with the new engine framework.
4156 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4157 make the newer ENGINE framework commands for the CHIL engine work.
4158 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4160 *) Make it possible to produce shared libraries on ReliantUNIX.
4161 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4163 *) Add the configuration target debug-linux-ppro.
4164 Make 'openssl rsa' use the general key loading routines
4165 implemented in apps.c, and make those routines able to
4166 handle the key format FORMAT_NETSCAPE and the variant
4168 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4170 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4171 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4173 *) Add -keyform to rsautl, and document -engine.
4174 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4176 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4177 BIO_R_NO_SUCH_FILE error code rather than the generic
4178 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4181 *) Add new functions
4183 ERR_peek_last_error_line
4184 ERR_peek_last_error_line_data.
4185 These are similar to
4188 ERR_peek_error_line_data,
4189 but report on the latest error recorded rather than the first one
4190 still in the error queue.
4191 [Ben Laurie, Bodo Moeller]
4193 *) default_algorithms option in ENGINE config module. This allows things
4195 default_algorithms = ALL
4196 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4199 *) Prelminary ENGINE config module.
4202 *) New experimental application configuration code.
4205 *) Change the AES code to follow the same name structure as all other
4206 symmetric ciphers, and behave the same way. Move everything to
4207 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4208 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4210 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4211 [Ben Laurie and Theo de Raadt]
4213 *) Add option to output public keys in req command.
4214 [Massimiliano Pala madwolf@openca.org]
4216 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4217 (up to about 10% better than before for P-192 and P-224).
4220 *) New functions/macros
4222 SSL_CTX_set_msg_callback(ctx, cb)
4223 SSL_CTX_set_msg_callback_arg(ctx, arg)
4224 SSL_set_msg_callback(ssl, cb)
4225 SSL_set_msg_callback_arg(ssl, arg)
4227 to request calling a callback function
4229 void cb(int write_p, int version, int content_type,
4230 const void *buf, size_t len, SSL *ssl, void *arg)
4232 whenever a protocol message has been completely received
4233 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4234 protocol version according to which the SSL library interprets
4235 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4236 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4237 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4238 specification (change_cipher_spec(20), alert(21), handshake(22)).
4239 'buf' and 'len' point to the actual message, 'ssl' to the
4240 SSL object, and 'arg' is the application-defined value set by
4241 SSL[_CTX]_set_msg_callback_arg().
4243 'openssl s_client' and 'openssl s_server' have new '-msg' options
4244 to enable a callback that displays all protocol messages.
4247 *) Change the shared library support so shared libraries are built as
4248 soon as the corresponding static library is finished, and thereby get
4249 openssl and the test programs linked against the shared library.
4250 This still only happens when the keyword "shard" has been given to
4251 the configuration scripts.
4253 NOTE: shared library support is still an experimental thing, and
4254 backward binary compatibility is still not guaranteed.
4255 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4257 *) Add support for Subject Information Access extension.
4258 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4260 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4261 additional bytes when new memory had to be allocated, not just
4262 when reusing an existing buffer.
4265 *) New command line and configuration option 'utf8' for the req command.
4266 This allows field values to be specified as UTF8 strings.
4269 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4270 runs for the former and machine-readable output for the latter.
4273 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4274 of the e-mail address in the DN (i.e., it will go into a certificate
4275 extension only). The new configuration file option 'email_in_dn = no'
4276 has the same effect.
4277 [Massimiliano Pala madwolf@openca.org]
4279 *) Change all functions with names starting with des_ to be starting
4280 with DES_ instead. Add wrappers that are compatible with libdes,
4281 but are named _ossl_old_des_*. Finally, add macros that map the
4282 des_* symbols to the corresponding _ossl_old_des_* if libdes
4283 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4284 desired, the des_* symbols will be mapped to DES_*, with one
4287 Since we provide two compatibility mappings, the user needs to
4288 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4289 compatibility is desired. The default (i.e., when that macro
4290 isn't defined) is OpenSSL 0.9.6c compatibility.
4292 There are also macros that enable and disable the support of old
4293 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4294 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4295 are defined, the default will apply: to support the old des routines.
4297 In either case, one must include openssl/des.h to get the correct
4298 definitions. Do not try to just include openssl/des_old.h, that
4301 NOTE: This is a major break of an old API into a new one. Software
4302 authors are encouraged to switch to the DES_ style functions. Some
4303 time in the future, des_old.h and the libdes compatibility functions
4304 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4305 default), and then completely removed.
4308 *) Test for certificates which contain unsupported critical extensions.
4309 If such a certificate is found during a verify operation it is
4310 rejected by default: this behaviour can be overridden by either
4311 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4312 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4313 X509_supported_extension() has also been added which returns 1 if a
4314 particular extension is supported.
4317 *) Modify the behaviour of EVP cipher functions in similar way to digests
4318 to retain compatibility with existing code.
4321 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4322 compatibility with existing code. In particular the 'ctx' parameter does
4323 not have to be to be initialized before the call to EVP_DigestInit() and
4324 it is tidied up after a call to EVP_DigestFinal(). New function
4325 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4326 EVP_MD_CTX_copy() changed to not require the destination to be
4327 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4328 requires the destination to be valid.
4330 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4331 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4334 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4335 so that complete 'Handshake' protocol structures are kept in memory
4336 instead of overwriting 'msg_type' and 'length' with 'body' data.
4339 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4340 [Massimo Santin via Richard Levitte]
4342 *) Major restructuring to the underlying ENGINE code. This includes
4343 reduction of linker bloat, separation of pure "ENGINE" manipulation
4344 (initialisation, etc) from functionality dealing with implementations
4345 of specific crypto iterfaces. This change also introduces integrated
4346 support for symmetric ciphers and digest implementations - so ENGINEs
4347 can now accelerate these by providing EVP_CIPHER and EVP_MD
4348 implementations of their own. This is detailed in crypto/engine/README
4349 as it couldn't be adequately described here. However, there are a few
4350 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4351 were changed in the original introduction of ENGINE code have now
4352 reverted back - the hooking from this code to ENGINE is now a good
4353 deal more passive and at run-time, operations deal directly with
4354 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4355 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4356 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4357 they were not being used by the framework as there is no concept of a
4358 BIGNUM_METHOD and they could not be generalised to the new
4359 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4360 ENGINE_cpy() has been removed as it cannot be consistently defined in
4364 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4367 *) Change mkdef.pl to sort symbols that get the same entry number,
4368 and make sure the automatically generated functions ERR_load_*
4369 become part of libeay.num as well.
4372 *) New function SSL_renegotiate_pending(). This returns true once
4373 renegotiation has been requested (either SSL_renegotiate() call
4374 or HelloRequest/ClientHello receveived from the peer) and becomes
4375 false once a handshake has been completed.
4376 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4377 sends a HelloRequest, but does not ensure that a handshake takes
4378 place. SSL_renegotiate_pending() is useful for checking if the
4379 client has followed the request.)
4382 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4383 By default, clients may request session resumption even during
4384 renegotiation (if session ID contexts permit); with this option,
4385 session resumption is possible only in the first handshake.
4387 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4388 more bits available for options that should not be part of
4389 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4392 *) Add some demos for certificate and certificate request creation.
4395 *) Make maximum certificate chain size accepted from the peer application
4396 settable (SSL*_get/set_max_cert_list()), as proposed by
4397 "Douglas E. Engert" <deengert@anl.gov>.
4400 *) Add support for shared libraries for Unixware-7
4401 (Boyd Lynn Gerber <gerberb@zenez.com>).
4404 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4405 be done prior to destruction. Use this to unload error strings from
4406 ENGINEs that load their own error strings. NB: This adds two new API
4407 functions to "get" and "set" this destroy handler in an ENGINE.
4410 *) Alter all existing ENGINE implementations (except "openssl" and
4411 "openbsd") to dynamically instantiate their own error strings. This
4412 makes them more flexible to be built both as statically-linked ENGINEs
4413 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4414 Also, add stub code to each that makes building them as self-contained
4415 shared-libraries easier (see README.ENGINE).
4418 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4419 implementations into applications that are completely implemented in
4420 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4421 commands that can be used to configure what shared-library to load and
4422 to control aspects of the way it is handled. Also, made an update to
4423 the README.ENGINE file that brings its information up-to-date and
4424 provides some information and instructions on the "dynamic" ENGINE
4425 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4428 *) Make it possible to unload ranges of ERR strings with a new
4429 "ERR_unload_strings" function.
4432 *) Add a copy() function to EVP_MD.
4435 *) Make EVP_MD routines take a context pointer instead of just the
4436 md_data void pointer.
4439 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4440 that the digest can only process a single chunk of data
4441 (typically because it is provided by a piece of
4442 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4443 is only going to provide a single chunk of data, and hence the
4444 framework needn't accumulate the data for oneshot drivers.
4447 *) As with "ERR", make it possible to replace the underlying "ex_data"
4448 functions. This change also alters the storage and management of global
4449 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4450 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4451 index counters. The API functions that use this state have been changed
4452 to take a "class_index" rather than pointers to the class's local STACK
4453 and counter, and there is now an API function to dynamically create new
4454 classes. This centralisation allows us to (a) plug a lot of the
4455 thread-safety problems that existed, and (b) makes it possible to clean
4456 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4457 such data would previously have always leaked in application code and
4458 workarounds were in place to make the memory debugging turn a blind eye
4459 to it. Application code that doesn't use this new function will still
4460 leak as before, but their memory debugging output will announce it now
4461 rather than letting it slide.
4463 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4464 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4465 has a return value to indicate success or failure.
4468 *) Make it possible to replace the underlying "ERR" functions such that the
4469 global state (2 LHASH tables and 2 locks) is only used by the "default"
4470 implementation. This change also adds two functions to "get" and "set"
4471 the implementation prior to it being automatically set the first time
4472 any other ERR function takes place. Ie. an application can call "get",
4473 pass the return value to a module it has just loaded, and that module
4474 can call its own "set" function using that value. This means the
4475 module's "ERR" operations will use (and modify) the error state in the
4476 application and not in its own statically linked copy of OpenSSL code.
4479 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4480 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4481 the operation, and provides a more encapsulated way for external code
4482 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4483 to use these functions rather than manually incrementing the counts.
4485 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4488 *) Add EVP test program.
4491 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4494 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4495 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4496 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4497 These allow a CRL to be built without having to access X509_CRL fields
4498 directly. Modify 'ca' application to use new functions.
4501 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4502 bug workarounds. Rollback attack detection is a security feature.
4503 The problem will only arise on OpenSSL servers when TLSv1 is not
4504 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4505 Software authors not wanting to support TLSv1 will have special reasons
4506 for their choice and can explicitly enable this option.
4507 [Bodo Moeller, Lutz Jaenicke]
4509 *) Rationalise EVP so it can be extended: don't include a union of
4510 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4511 (similar to those existing for EVP_CIPHER_CTX).
4516 EVP_MD_CTX_init(&md); /* new function call */
4517 EVP_DigestInit(&md, EVP_sha1());
4518 EVP_DigestUpdate(&md, in, len);
4519 EVP_DigestFinal(&md, out, NULL);
4520 EVP_MD_CTX_cleanup(&md); /* new function call */
4524 *) Make DES key schedule conform to the usual scheme, as well as
4525 correcting its structure. This means that calls to DES functions
4526 now have to pass a pointer to a des_key_schedule instead of a
4527 plain des_key_schedule (which was actually always a pointer
4530 des_key_schedule ks;
4532 des_set_key_checked(..., &ks);
4533 des_ncbc_encrypt(..., &ks, ...);
4535 (Note that a later change renames 'des_...' into 'DES_...'.)
4538 *) Initial reduction of linker bloat: the use of some functions, such as
4539 PEM causes large amounts of unused functions to be linked in due to
4540 poor organisation. For example pem_all.c contains every PEM function
4541 which has a knock on effect of linking in large amounts of (unused)
4542 ASN1 code. Grouping together similar functions and splitting unrelated
4543 functions prevents this.
4546 *) Cleanup of EVP macros.
4549 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4550 correct _ecb suffix.
4553 *) Add initial OCSP responder support to ocsp application. The
4554 revocation information is handled using the text based index
4555 use by the ca application. The responder can either handle
4556 requests generated internally, supplied in files (for example
4557 via a CGI script) or using an internal minimal server.
4560 *) Add configuration choices to get zlib compression for TLS.
4563 *) Changes to Kerberos SSL for RFC 2712 compliance:
4564 1. Implemented real KerberosWrapper, instead of just using
4565 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4566 2. Implemented optional authenticator field of KerberosWrapper.
4568 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4569 and authenticator structs; see crypto/krb5/.
4571 Generalized Kerberos calls to support multiple Kerberos libraries.
4572 [Vern Staats <staatsvr@asc.hpc.mil>,
4573 Jeffrey Altman <jaltman@columbia.edu>
4574 via Richard Levitte]
4576 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4577 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4578 values for each of the key sizes rather than having just
4579 parameters (and 'speed' generating keys each time).
4582 *) Speed up EVP routines.
4585 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4586 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4587 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4588 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4590 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4591 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4592 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4595 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4597 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4600 *) Added the OS2-EMX target.
4601 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4603 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4604 to support NCONF routines in extension code. New function CONF_set_nconf()
4605 to allow functions which take an NCONF to also handle the old LHASH
4606 structure: this means that the old CONF compatible routines can be
4607 retained (in particular wrt extensions) without having to duplicate the
4608 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4611 *) Enhance the general user interface with mechanisms for inner control
4612 and with possibilities to have yes/no kind of prompts.
4615 *) Change all calls to low level digest routines in the library and
4616 applications to use EVP. Add missing calls to HMAC_cleanup() and
4617 don't assume HMAC_CTX can be copied using memcpy().
4618 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4620 *) Add the possibility to control engines through control names but with
4621 arbitrary arguments instead of just a string.
4622 Change the key loaders to take a UI_METHOD instead of a callback
4623 function pointer. NOTE: this breaks binary compatibility with earlier
4624 versions of OpenSSL [engine].
4625 Adapt the nCipher code for these new conditions and add a card insertion
4629 *) Enhance the general user interface with mechanisms to better support
4630 dialog box interfaces, application-defined prompts, the possibility
4631 to use defaults (for example default passwords from somewhere else)
4632 and interrupts/cancellations.
4635 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4636 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4639 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4640 tidy up some unnecessarily weird code in 'sk_new()').
4641 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4643 *) Change the key loading routines for ENGINEs to use the same kind
4644 callback (pem_password_cb) as all other routines that need this
4648 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4649 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4650 than this minimum value is recommended.
4653 *) New random seeder for OpenVMS, using the system process statistics
4654 that are easily reachable.
4657 *) Windows apparently can't transparently handle global
4658 variables defined in DLLs. Initialisations such as:
4660 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4662 wont compile. This is used by the any applications that need to
4663 declare their own ASN1 modules. This was fixed by adding the option
4664 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4665 needed for static libraries under Win32.
4668 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4669 setting of purpose and trust fields. New X509_STORE trust and
4670 purpose functions and tidy up setting in other SSL functions.
4673 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4674 structure. These are inherited by X509_STORE_CTX when it is
4675 initialised. This allows various defaults to be set in the
4676 X509_STORE structure (such as flags for CRL checking and custom
4677 purpose or trust settings) for functions which only use X509_STORE_CTX
4678 internally such as S/MIME.
4680 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4681 trust settings if they are not set in X509_STORE. This allows X509_STORE
4682 purposes and trust (in S/MIME for example) to override any set by default.
4684 Add command line options for CRL checking to smime, s_client and s_server
4688 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4689 are set then the CRL is looked up in the X509_STORE structure and
4690 its validity and signature checked, then if the certificate is found
4691 in the CRL the verify fails with a revoked error.
4693 Various new CRL related callbacks added to X509_STORE_CTX structure.
4695 Command line options added to 'verify' application to support this.
4697 This needs some additional work, such as being able to handle multiple
4698 CRLs with different times, extension based lookup (rather than just
4699 by subject name) and ultimately more complete V2 CRL extension
4703 *) Add a general user interface API (crypto/ui/). This is designed
4704 to replace things like des_read_password and friends (backward
4705 compatibility functions using this new API are provided).
4706 The purpose is to remove prompting functions from the DES code
4707 section as well as provide for prompting through dialog boxes in
4708 a window system and the like.
4711 *) Add "ex_data" support to ENGINE so implementations can add state at a
4712 per-structure level rather than having to store it globally.
4715 *) Make it possible for ENGINE structures to be copied when retrieved by
4716 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4717 This causes the "original" ENGINE structure to act like a template,
4718 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4719 operational state can be localised to each ENGINE structure, despite the
4720 fact they all share the same "methods". New ENGINE structures returned in
4721 this case have no functional references and the return value is the single
4722 structural reference. This matches the single structural reference returned
4723 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4727 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4728 needs to match any other type at all we need to manually clear the
4732 *) Changes to the "openssl engine" utility to include;
4733 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4734 about an ENGINE's available control commands.
4735 - executing control commands from command line arguments using the
4736 '-pre' and '-post' switches. '-post' is only used if '-t' is
4737 specified and the ENGINE is successfully initialised. The syntax for
4738 the individual commands are colon-separated, for example;
4739 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4742 *) New dynamic control command support for ENGINEs. ENGINEs can now
4743 declare their own commands (numbers), names (strings), descriptions,
4744 and input types for run-time discovery by calling applications. A
4745 subset of these commands are implicitly classed as "executable"
4746 depending on their input type, and only these can be invoked through
4747 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4748 can be based on user input, config files, etc). The distinction is
4749 that "executable" commands cannot return anything other than a boolean
4750 result and can only support numeric or string input, whereas some
4751 discoverable commands may only be for direct use through
4752 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4753 pointers, or other custom uses. The "executable" commands are to
4754 support parameterisations of ENGINE behaviour that can be
4755 unambiguously defined by ENGINEs and used consistently across any
4756 OpenSSL-based application. Commands have been added to all the
4757 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4758 control over shared-library paths without source code alterations.
4761 *) Changed all ENGINE implementations to dynamically allocate their
4762 ENGINEs rather than declaring them statically. Apart from this being
4763 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4764 this also allows the implementations to compile without using the
4765 internal engine_int.h header.
4768 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4769 'const' value. Any code that should be able to modify a RAND_METHOD
4770 should already have non-const pointers to it (ie. they should only
4771 modify their own ones).
4774 *) Made a variety of little tweaks to the ENGINE code.
4775 - "atalla" and "ubsec" string definitions were moved from header files
4776 to C code. "nuron" string definitions were placed in variables
4777 rather than hard-coded - allowing parameterisation of these values
4778 later on via ctrl() commands.
4779 - Removed unused "#if 0"'d code.
4780 - Fixed engine list iteration code so it uses ENGINE_free() to release
4781 structural references.
4782 - Constified the RAND_METHOD element of ENGINE structures.
4783 - Constified various get/set functions as appropriate and added
4784 missing functions (including a catch-all ENGINE_cpy that duplicates
4785 all ENGINE values onto a new ENGINE except reference counts/state).
4786 - Removed NULL parameter checks in get/set functions. Setting a method
4787 or function to NULL is a way of cancelling out a previously set
4788 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4789 and doesn't justify the extra error symbols and code.
4790 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4791 flags from engine_int.h to engine.h.
4792 - Changed prototypes for ENGINE handler functions (init(), finish(),
4793 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4796 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4797 to the algorithm using long division. The binary algorithm can be
4798 used only if the modulus is odd. On 32-bit systems, it is faster
4799 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4800 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4801 up to 450 bits. In 64-bit environments, the binary algorithm
4802 appears to be advantageous for much longer moduli; here we use it
4803 for moduli up to 2048 bits.
4806 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4807 could not support the combine flag in choice fields.
4810 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4811 extensions from a certificate request to the certificate.
4814 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4815 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4816 file: this allows the display of the certificate about to be
4817 signed to be customised, to allow certain fields to be included
4818 or excluded and extension details. The old system didn't display
4819 multicharacter strings properly, omitted fields not in the policy
4820 and couldn't display additional details such as extensions.
4823 *) Function EC_POINTs_mul for multiple scalar multiplication
4824 of an arbitrary number of elliptic curve points
4825 \sum scalars[i]*points[i],
4826 optionally including the generator defined for the EC_GROUP:
4827 scalar*generator + \sum scalars[i]*points[i].
4829 EC_POINT_mul is a simple wrapper function for the typical case
4830 that the point list has just one item (besides the optional
4834 *) First EC_METHODs for curves over GF(p):
4836 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4837 operations and provides various method functions that can also
4838 operate with faster implementations of modular arithmetic.
4840 EC_GFp_mont_method() reuses most functions that are part of
4841 EC_GFp_simple_method, but uses Montgomery arithmetic.
4843 [Bodo Moeller; point addition and point doubling
4844 implementation directly derived from source code provided by
4845 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4847 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4848 crypto/ec/ec_lib.c):
4850 Curves are EC_GROUP objects (with an optional group generator)
4851 based on EC_METHODs that are built into the library.
4853 Points are EC_POINT objects based on EC_GROUP objects.
4855 Most of the framework would be able to handle curves over arbitrary
4856 finite fields, but as there are no obvious types for fields other
4857 than GF(p), some functions are limited to that for now.
4860 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4861 that the file contains a complete HTTP response.
4864 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4865 change the def and num file printf format specifier from "%-40sXXX"
4866 to "%-39s XXX". The latter will always guarantee a space after the
4867 field while the former will cause them to run together if the field
4868 is 40 of more characters long.
4871 *) Constify the cipher and digest 'method' functions and structures
4872 and modify related functions to take constant EVP_MD and EVP_CIPHER
4876 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4877 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4880 *) Modify EVP_Digest*() routines so they now return values. Although the
4881 internal software routines can never fail additional hardware versions
4885 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4887 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4888 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4891 ERR_R_NESTED_ASN1_ERROR
4893 ERR_R_MISSING_ASN1_EOS
4894 were 4 .. 9, conflicting with
4895 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4897 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4898 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4900 Add new error code 'ERR_R_INTERNAL_ERROR'.
4903 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4907 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4908 sets the subject name for a new request or supersedes the
4909 subject name in a given request. Formats that can be parsed are
4910 'CN=Some Name, OU=myOU, C=IT'
4912 'CN=Some Name/OU=myOU/C=IT'.
4914 Add options '-batch' and '-verbose' to 'openssl req'.
4915 [Massimiliano Pala <madwolf@hackmasters.net>]
4917 *) Introduce the possibility to access global variables through
4918 functions on platform were that's the best way to handle exporting
4919 global variables in shared libraries. To enable this functionality,
4920 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4921 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4922 is normally done by Configure or something similar).
4924 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4925 in the source file (foo.c) like this:
4927 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4928 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4930 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4931 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4933 OPENSSL_DECLARE_GLOBAL(int,foo);
4934 #define foo OPENSSL_GLOBAL_REF(foo)
4935 OPENSSL_DECLARE_GLOBAL(double,bar);
4936 #define bar OPENSSL_GLOBAL_REF(bar)
4938 The #defines are very important, and therefore so is including the
4939 header file everywhere where the defined globals are used.
4941 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4942 of ASN.1 items, but that structure is a bit different.
4944 The largest change is in util/mkdef.pl which has been enhanced with
4945 better and easier to understand logic to choose which symbols should
4946 go into the Windows .def files as well as a number of fixes and code
4947 cleanup (among others, algorithm keywords are now sorted
4948 lexicographically to avoid constant rewrites).
4951 *) In BN_div() keep a copy of the sign of 'num' before writing the
4952 result to 'rm' because if rm==num the value will be overwritten
4953 and produce the wrong result if 'num' is negative: this caused
4954 problems with BN_mod() and BN_nnmod().
4957 *) Function OCSP_request_verify(). This checks the signature on an
4958 OCSP request and verifies the signer certificate. The signer
4959 certificate is just checked for a generic purpose and OCSP request
4963 *) Add OCSP_check_validity() function to check the validity of OCSP
4964 responses. OCSP responses are prepared in real time and may only
4965 be a few seconds old. Simply checking that the current time lies
4966 between thisUpdate and nextUpdate max reject otherwise valid responses
4967 caused by either OCSP responder or client clock inaccuracy. Instead
4968 we allow thisUpdate and nextUpdate to fall within a certain period of
4969 the current time. The age of the response can also optionally be
4970 checked. Two new options -validity_period and -status_age added to
4974 *) If signature or public key algorithm is unrecognized print out its
4975 OID rather that just UNKNOWN.
4978 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4979 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4980 ID to be generated from the issuer certificate alone which can then be
4981 passed to OCSP_id_issuer_cmp().
4984 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4985 ASN1 modules to export functions returning ASN1_ITEM pointers
4986 instead of the ASN1_ITEM structures themselves. This adds several
4987 new macros which allow the underlying ASN1 function/structure to
4988 be accessed transparently. As a result code should not use ASN1_ITEM
4989 references directly (such as &X509_it) but instead use the relevant
4990 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4991 use of the new ASN1 code on platforms where exporting structures
4992 is problematical (for example in shared libraries) but exporting
4993 functions returning pointers to structures is not.
4996 *) Add support for overriding the generation of SSL/TLS session IDs.
4997 These callbacks can be registered either in an SSL_CTX or per SSL.
4998 The purpose of this is to allow applications to control, if they wish,
4999 the arbitrary values chosen for use as session IDs, particularly as it
5000 can be useful for session caching in multiple-server environments. A
5001 command-line switch for testing this (and any client code that wishes
5002 to use such a feature) has been added to "s_server".
5003 [Geoff Thorpe, Lutz Jaenicke]
5005 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5006 of the form '#if defined(...) || defined(...) || ...' and
5007 '#if !defined(...) && !defined(...) && ...'. This also avoids
5008 the growing number of special cases it was previously handling.
5011 *) Make all configuration macros available for application by making
5012 sure they are available in opensslconf.h, by giving them names starting
5013 with "OPENSSL_" to avoid conflicts with other packages and by making
5014 sure e_os2.h will cover all platform-specific cases together with
5016 Additionally, it is now possible to define configuration/platform-
5017 specific names (called "system identities"). In the C code, these
5018 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5019 macro with the name beginning with "OPENSSL_SYS_", which is determined
5020 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5024 *) New option -set_serial to 'req' and 'x509' this allows the serial
5025 number to use to be specified on the command line. Previously self
5026 signed certificates were hard coded with serial number 0 and the
5027 CA options of 'x509' had to use a serial number in a file which was
5031 *) New options to 'ca' utility to support V2 CRL entry extensions.
5032 Currently CRL reason, invalidity date and hold instruction are
5033 supported. Add new CRL extensions to V3 code and some new objects.
5036 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5037 disable standard block padding (aka PKCS#5 padding) in the EVP
5038 API, which was previously mandatory. This means that the data is
5039 not padded in any way and so the total length much be a multiple
5040 of the block size, otherwise an error occurs.
5043 *) Initial (incomplete) OCSP SSL support.
5046 *) New function OCSP_parse_url(). This splits up a URL into its host,
5047 port and path components: primarily to parse OCSP URLs. New -url
5048 option to ocsp utility.
5051 *) New nonce behavior. The return value of OCSP_check_nonce() now
5052 reflects the various checks performed. Applications can decide
5053 whether to tolerate certain situations such as an absent nonce
5054 in a response when one was present in a request: the ocsp application
5055 just prints out a warning. New function OCSP_add1_basic_nonce()
5056 this is to allow responders to include a nonce in a response even if
5057 the request is nonce-less.
5060 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5061 skipped when using openssl x509 multiple times on a single input file,
5062 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5065 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5066 set string type: to handle setting ASN1_TIME structures. Fix ca
5067 utility to correctly initialize revocation date of CRLs.
5070 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5071 the clients preferred ciphersuites and rather use its own preferences.
5072 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5073 Internet Explorer by ensuring unchanged hash method during stepup.
5074 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5077 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5078 to aes and add a new 'exist' option to print out symbols that don't
5082 *) Additional options to ocsp utility to allow flags to be set and
5083 additional certificates supplied.
5086 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5087 OCSP client a number of certificate to only verify the response
5091 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5092 handle the new API. Currently only ECB, CBC modes supported. Add new
5095 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5096 Encryption Standard (AES) Ciphersuites for Transport Layer
5097 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5098 not enabled by default and were not part of the "ALL" ciphersuite
5099 alias because they were not yet official; they could be
5100 explicitly requested by specifying the "AESdraft" ciphersuite
5101 group alias. In the final release of OpenSSL 0.9.7, the group
5102 alias is called "AES" and is part of "ALL".)
5103 [Ben Laurie, Steve Henson, Bodo Moeller]
5105 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5106 request to response.
5109 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5110 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5111 extract information from a certificate request. OCSP_response_create()
5112 creates a response and optionally adds a basic response structure.
5113 OCSP_basic_add1_status() adds a complete single response to a basic
5114 response and returns the OCSP_SINGLERESP structure just added (to allow
5115 extensions to be included for example). OCSP_basic_add1_cert() adds a
5116 certificate to a basic response and OCSP_basic_sign() signs a basic
5117 response with various flags. New helper functions ASN1_TIME_check()
5118 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5119 (converts ASN1_TIME to GeneralizedTime).
5122 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5123 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5124 structure from a certificate. X509_pubkey_digest() digests the public_key
5125 contents: this is used in various key identifiers.
5128 *) Make sk_sort() tolerate a NULL argument.
5129 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5131 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5132 passed by the function are trusted implicitly. If any of them signed the
5133 response then it is assumed to be valid and is not verified.
5136 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5137 to data. This was previously part of the PKCS7 ASN1 code. This
5138 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5139 [Steve Henson, reported by Kenneth R. Robinette
5140 <support@securenetterm.com>]
5142 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5143 routines: without these tracing memory leaks is very painful.
5144 Fix leaks in PKCS12 and PKCS7 routines.
5147 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5148 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5149 effectively meant GeneralizedTime would never be used. Now it
5150 is initialised to -1 but X509_time_adj() now has to check the value
5151 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5152 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5153 [Steve Henson, reported by Kenneth R. Robinette
5154 <support@securenetterm.com>]
5156 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5157 result in a zero length in the ASN1_INTEGER structure which was
5158 not consistent with the structure when d2i_ASN1_INTEGER() was used
5159 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5160 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5161 where it did not print out a minus for negative ASN1_INTEGER.
5164 *) Add summary printout to ocsp utility. The various functions which
5165 convert status values to strings have been renamed to:
5166 OCSP_response_status_str(), OCSP_cert_status_str() and
5167 OCSP_crl_reason_str() and are no longer static. New options
5168 to verify nonce values and to disable verification. OCSP response
5169 printout format cleaned up.
5172 *) Add additional OCSP certificate checks. These are those specified
5173 in RFC2560. This consists of two separate checks: the CA of the
5174 certificate being checked must either be the OCSP signer certificate
5175 or the issuer of the OCSP signer certificate. In the latter case the
5176 OCSP signer certificate must contain the OCSP signing extended key
5177 usage. This check is performed by attempting to match the OCSP
5178 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5179 in the OCSP_CERTID structures of the response.
5182 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5183 and related routines. This uses the standard OpenSSL certificate
5184 verify routines to perform initial checks (just CA validity) and
5185 to obtain the certificate chain. Then additional checks will be
5186 performed on the chain. Currently the root CA is checked to see
5187 if it is explicitly trusted for OCSP signing. This is used to set
5188 a root CA as a global signing root: that is any certificate that
5189 chains to that CA is an acceptable OCSP signing certificate.
5192 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5193 extensions from a separate configuration file.
5194 As when reading extensions from the main configuration file,
5195 the '-extensions ...' option may be used for specifying the
5197 [Massimiliano Pala <madwolf@comune.modena.it>]
5199 *) New OCSP utility. Allows OCSP requests to be generated or
5200 read. The request can be sent to a responder and the output
5201 parsed, outputed or printed in text form. Not complete yet:
5202 still needs to check the OCSP response validity.
5205 *) New subcommands for 'openssl ca':
5206 'openssl ca -status <serial>' prints the status of the cert with
5207 the given serial number (according to the index file).
5208 'openssl ca -updatedb' updates the expiry status of certificates
5210 [Massimiliano Pala <madwolf@comune.modena.it>]
5212 *) New '-newreq-nodes' command option to CA.pl. This is like
5213 '-newreq', but calls 'openssl req' with the '-nodes' option
5214 so that the resulting key is not encrypted.
5215 [Damien Miller <djm@mindrot.org>]
5217 *) New configuration for the GNU Hurd.
5218 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5220 *) Initial code to implement OCSP basic response verify. This
5221 is currently incomplete. Currently just finds the signer's
5222 certificate and verifies the signature on the response.
5225 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5226 value of OPENSSLDIR. This is available via the new '-d' option
5227 to 'openssl version', and is also included in 'openssl version -a'.
5230 *) Allowing defining memory allocation callbacks that will be given
5231 file name and line number information in additional arguments
5232 (a const char* and an int). The basic functionality remains, as
5233 well as the original possibility to just replace malloc(),
5234 realloc() and free() by functions that do not know about these
5235 additional arguments. To register and find out the current
5236 settings for extended allocation functions, the following
5237 functions are provided:
5239 CRYPTO_set_mem_ex_functions
5240 CRYPTO_set_locked_mem_ex_functions
5241 CRYPTO_get_mem_ex_functions
5242 CRYPTO_get_locked_mem_ex_functions
5244 These work the same way as CRYPTO_set_mem_functions and friends.
5245 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5246 extended allocation function is enabled.
5247 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5248 a conventional allocation function is enabled.
5249 [Richard Levitte, Bodo Moeller]
5251 *) Finish off removing the remaining LHASH function pointer casts.
5252 There should no longer be any prototype-casting required when using
5253 the LHASH abstraction, and any casts that remain are "bugs". See
5254 the callback types and macros at the head of lhash.h for details
5255 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5258 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5259 If /dev/[u]random devices are not available or do not return enough
5260 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5262 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5263 /etc/entropy will be queried once each in this sequence, quering stops
5264 when enough entropy was collected without querying more sockets.
5267 *) Change the Unix RAND_poll() variant to be able to poll several
5268 random devices, as specified by DEVRANDOM, until a sufficient amount
5269 of data has been collected. We spend at most 10 ms on each file
5270 (select timeout) and read in non-blocking mode. DEVRANDOM now
5271 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5272 (previously it was just the string "/dev/urandom"), so on typical
5273 platforms the 10 ms delay will never occur.
5274 Also separate out the Unix variant to its own file, rand_unix.c.
5275 For VMS, there's a currently-empty rand_vms.c.
5278 *) Move OCSP client related routines to ocsp_cl.c. These
5279 provide utility functions which an application needing
5280 to issue a request to an OCSP responder and analyse the
5281 response will typically need: as opposed to those which an
5282 OCSP responder itself would need which will be added later.
5284 OCSP_request_sign() signs an OCSP request with an API similar
5285 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5286 response. OCSP_response_get1_basic() extracts basic response
5287 from response. OCSP_resp_find_status(): finds and extracts status
5288 information from an OCSP_CERTID structure (which will be created
5289 when the request structure is built). These are built from lower
5290 level functions which work on OCSP_SINGLERESP structures but
5291 wont normally be used unless the application wishes to examine
5292 extensions in the OCSP response for example.
5294 Replace nonce routines with a pair of functions.
5295 OCSP_request_add1_nonce() adds a nonce value and optionally
5296 generates a random value. OCSP_check_nonce() checks the
5297 validity of the nonce in an OCSP response.
5300 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5301 This doesn't copy the supplied OCSP_CERTID and avoids the
5302 need to free up the newly created id. Change return type
5303 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5304 This can then be used to add extensions to the request.
5305 Deleted OCSP_request_new(), since most of its functionality
5306 is now in OCSP_REQUEST_new() (and the case insensitive name
5307 clash) apart from the ability to set the request name which
5308 will be added elsewhere.
5311 *) Update OCSP API. Remove obsolete extensions argument from
5312 various functions. Extensions are now handled using the new
5313 OCSP extension code. New simple OCSP HTTP function which
5314 can be used to send requests and parse the response.
5317 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5318 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5319 uses the special reorder version of SET OF to sort the attributes
5320 and reorder them to match the encoded order. This resolves a long
5321 standing problem: a verify on a PKCS7 structure just after signing
5322 it used to fail because the attribute order did not match the
5323 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5324 it uses the received order. This is necessary to tolerate some broken
5325 software that does not order SET OF. This is handled by encoding
5326 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5327 to produce the required SET OF.
5330 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5331 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5332 files to get correct declarations of the ASN.1 item variables.
5335 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5336 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5337 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5338 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5339 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5340 ASN1_ITEM and no wrapper functions.
5343 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5344 replace the old function pointer based I/O routines. Change most of
5345 the *_d2i_bio() and *_d2i_fp() functions to use these.
5348 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5349 lines, recognice more "algorithms" that can be deselected, and make
5350 it complain about algorithm deselection that isn't recognised.
5353 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5354 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5355 to use new functions. Add NO_ASN1_OLD which can be set to remove
5356 some old style ASN1 functions: this can be used to determine if old
5357 code will still work when these eventually go away.
5360 *) New extension functions for OCSP structures, these follow the
5361 same conventions as certificates and CRLs.
5364 *) New function X509V3_add1_i2d(). This automatically encodes and
5365 adds an extension. Its behaviour can be customised with various
5366 flags to append, replace or delete. Various wrappers added for
5367 certifcates and CRLs.
5370 *) Fix to avoid calling the underlying ASN1 print routine when
5371 an extension cannot be parsed. Correct a typo in the
5372 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5375 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5376 entries for variables.
5379 *) Add functionality to apps/openssl.c for detecting locking
5380 problems: As the program is single-threaded, all we have
5381 to do is register a locking callback using an array for
5382 storing which locks are currently held by the program.
5385 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5386 SSL_get_ex_data_X509_STORE_idx(), which is used in
5387 ssl_verify_cert_chain() and thus can be called at any time
5388 during TLS/SSL handshakes so that thread-safety is essential.
5389 Unfortunately, the ex_data design is not at all suited
5390 for multi-threaded use, so it probably should be abolished.
5393 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5394 [Broadcom, tweaked and integrated by Geoff Thorpe]
5396 *) Move common extension printing code to new function
5397 X509V3_print_extensions(). Reorganise OCSP print routines and
5398 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5401 *) New function X509_signature_print() to remove duplication in some
5405 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5406 set (this was treated exactly the same as SET OF previously). This
5407 is used to reorder the STACK representing the structure to match the
5408 encoding. This will be used to get round a problem where a PKCS7
5409 structure which was signed could not be verified because the STACK
5410 order did not reflect the encoded order.
5413 *) Reimplement the OCSP ASN1 module using the new code.
5416 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5417 for its ASN1 operations. The old style function pointers still exist
5418 for now but they will eventually go away.
5421 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5422 completely replaces the old ASN1 functionality with a table driven
5423 encoder and decoder which interprets an ASN1_ITEM structure describing
5424 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5425 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5426 has also been converted to the new form.
5429 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5430 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5431 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5432 for negative moduli.
5435 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5436 of not touching the result's sign bit.
5439 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5443 *) Changed the LHASH code to use prototypes for callbacks, and created
5444 macros to declare and implement thin (optionally static) functions
5445 that provide type-safety and avoid function pointer casting for the
5446 type-specific callbacks.
5449 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5451 [Veers Staats <staatsvr@asc.hpc.mil>,
5452 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5454 *) Reformat the FAQ so the different questions and answers can be divided
5455 in sections depending on the subject.
5458 *) Have the zlib compression code load ZLIB.DLL dynamically under
5462 *) New function BN_mod_sqrt for computing square roots modulo a prime
5463 (using the probabilistic Tonelli-Shanks algorithm unless
5464 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5465 be handled deterministically).
5466 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5468 *) Make BN_mod_inverse faster by explicitly handling small quotients
5469 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5470 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5473 *) New function BN_kronecker.
5476 *) Fix BN_gcd so that it works on negative inputs; the result is
5477 positive unless both parameters are zero.
5478 Previously something reasonably close to an infinite loop was
5479 possible because numbers could be growing instead of shrinking
5480 in the implementation of Euclid's algorithm.
5483 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5484 sign of the number in question.
5486 Fix BN_is_word(a,w) to work correctly for w == 0.
5488 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5489 because its test if the absolute value of 'a' equals 'w'.
5490 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5491 it exists mostly for use in the implementations of BN_is_zero(),
5492 BN_is_one(), and BN_is_word().
5495 *) New function BN_swap.
5498 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5499 the exponentiation functions are more likely to produce reasonable
5500 results on negative inputs.
5503 *) Change BN_mod_mul so that the result is always non-negative.
5504 Previously, it could be negative if one of the factors was negative;
5505 I don't think anyone really wanted that behaviour.
5508 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5509 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5510 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5511 and add new functions:
5520 BN_mod_lshift1_quick
5524 These functions always generate non-negative results.
5526 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5527 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5529 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5530 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5531 be reduced modulo m.
5532 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5535 The following entry accidentily appeared in the CHANGES file
5536 distributed with OpenSSL 0.9.7. The modifications described in
5537 it do *not* apply to OpenSSL 0.9.7.
5539 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5540 was actually never needed) and in BN_mul(). The removal in BN_mul()
5541 required a small change in bn_mul_part_recursive() and the addition
5542 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5543 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5544 bn_sub_words() and bn_add_words() except they take arrays with
5549 *) In 'openssl passwd', verify passwords read from the terminal
5550 unless the '-salt' option is used (which usually means that
5551 verification would just waste user's time since the resulting
5552 hash is going to be compared with some given password hash)
5553 or the new '-noverify' option is used.
5555 This is an incompatible change, but it does not affect
5556 non-interactive use of 'openssl passwd' (passwords on the command
5557 line, '-stdin' option, '-in ...' option) and thus should not
5561 *) Remove all references to RSAref, since there's no more need for it.
5564 *) Make DSO load along a path given through an environment variable
5565 (SHLIB_PATH) with shl_load().
5568 *) Constify the ENGINE code as a result of BIGNUM constification.
5569 Also constify the RSA code and most things related to it. In a
5570 few places, most notable in the depth of the ASN.1 code, ugly
5571 casts back to non-const were required (to be solved at a later
5575 *) Make it so the openssl application has all engines loaded by default.
5578 *) Constify the BIGNUM routines a little more.
5581 *) Add the following functions:
5583 ENGINE_load_cswift()
5585 ENGINE_load_atalla()
5587 ENGINE_load_builtin_engines()
5589 That way, an application can itself choose if external engines that
5590 are built-in in OpenSSL shall ever be used or not. The benefit is
5591 that applications won't have to be linked with libdl or other dso
5592 libraries unless it's really needed.
5594 Changed 'openssl engine' to load all engines on demand.
5595 Changed the engine header files to avoid the duplication of some
5596 declarations (they differed!).
5599 *) 'openssl engine' can now list capabilities.
5602 *) Better error reporting in 'openssl engine'.
5605 *) Never call load_dh_param(NULL) in s_server.
5608 *) Add engine application. It can currently list engines by name and
5609 identity, and test if they are actually available.
5612 *) Improve RPM specification file by forcing symbolic linking and making
5613 sure the installed documentation is also owned by root.root.
5614 [Damien Miller <djm@mindrot.org>]
5616 *) Give the OpenSSL applications more possibilities to make use of
5617 keys (public as well as private) handled by engines.
5620 *) Add OCSP code that comes from CertCo.
5623 *) Add VMS support for the Rijndael code.
5626 *) Added untested support for Nuron crypto accelerator.
5629 *) Add support for external cryptographic devices. This code was
5630 previously distributed separately as the "engine" branch.
5631 [Geoff Thorpe, Richard Levitte]
5633 *) Rework the filename-translation in the DSO code. It is now possible to
5634 have far greater control over how a "name" is turned into a filename
5635 depending on the operating environment and any oddities about the
5636 different shared library filenames on each system.
5639 *) Support threads on FreeBSD-elf in Configure.
5642 *) Fix for SHA1 assembly problem with MASM: it produces
5643 warnings about corrupt line number information when assembling
5644 with debugging information. This is caused by the overlapping
5646 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5649 NCONF_get_number() has no error checking at all. As a replacement,
5650 NCONF_get_number_e() is defined (_e for "error checking") and is
5651 promoted strongly. The old NCONF_get_number is kept around for
5652 binary backward compatibility.
5653 Make it possible for methods to load from something other than a BIO,
5654 by providing a function pointer that is given a name instead of a BIO.
5655 For example, this could be used to load configuration data from an
5659 *) Fix for non blocking accept BIOs. Added new I/O special reason
5660 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5661 with non blocking I/O was not possible because no retry code was
5662 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5666 *) Added the beginnings of Rijndael support.
5669 *) Fix for bug in DirectoryString mask setting. Add support for
5670 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5671 to allow certificate printing to more controllable, additional
5672 'certopt' option to 'x509' to allow new printing options to be
5676 *) Clean old EAY MD5 hack from e_os.h.
5679 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5681 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5682 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5683 [Joe Orton, Steve Henson]
5685 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5687 *) Fix additional bug revealed by the NISCC test suite:
5689 Stop bug triggering large recursion when presented with
5690 certain ASN.1 tags (CVE-2003-0851)
5693 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5695 *) Fix various bugs revealed by running the NISCC test suite:
5697 Stop out of bounds reads in the ASN1 code when presented with
5698 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5700 If verify callback ignores invalid public key errors don't try to check
5701 certificate signature with the NULL public key.
5705 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5706 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5710 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5711 extra data after the compression methods not only for TLS 1.0
5712 but also for SSL 3.0 (as required by the specification).
5713 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5715 *) Change X509_certificate_type() to mark the key as exported/exportable
5716 when it's 512 *bits* long, not 512 bytes.
5719 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5721 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5722 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5723 a protocol version number mismatch like a decryption error
5724 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5727 *) Turn on RSA blinding by default in the default implementation
5728 to avoid a timing attack. Applications that don't want it can call
5729 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5730 They would be ill-advised to do so in most cases.
5731 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5733 *) Change RSA blinding code so that it works when the PRNG is not
5734 seeded (in this case, the secret RSA exponent is abused as
5735 an unpredictable seed -- if it is not unpredictable, there
5736 is no point in blinding anyway). Make RSA blinding thread-safe
5737 by remembering the creator's thread ID in rsa->blinding and
5738 having all other threads use local one-time blinding factors
5739 (this requires more computation than sharing rsa->blinding, but
5740 avoids excessive locking; and if an RSA object is not shared
5741 between threads, blinding will still be very fast).
5744 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5746 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5747 via timing by performing a MAC computation even if incorrrect
5748 block cipher padding has been found. This is a countermeasure
5749 against active attacks where the attacker has to distinguish
5750 between bad padding and a MAC verification error. (CVE-2003-0078)
5752 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5753 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5754 Martin Vuagnoux (EPFL, Ilion)]
5756 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5758 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5759 memory from it's contents. This is done with a counter that will
5760 place alternating values in each byte. This can be used to solve
5761 two issues: 1) the removal of calls to memset() by highly optimizing
5762 compilers, and 2) cleansing with other values than 0, since those can
5763 be read through on certain media, for example a swap space on disk.
5766 *) Bugfix: client side session caching did not work with external caching,
5767 because the session->cipher setting was not restored when reloading
5768 from the external cache. This problem was masked, when
5769 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5770 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5773 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5774 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5775 [Zeev Lieber <zeev-l@yahoo.com>]
5777 *) Undo an undocumented change introduced in 0.9.6e which caused
5778 repeated calls to OpenSSL_add_all_ciphers() and
5779 OpenSSL_add_all_digests() to be ignored, even after calling
5783 *) Change the default configuration reader to deal with last line not
5784 being properly terminated.
5787 *) Change X509_NAME_cmp() so it applies the special rules on handling
5788 DN values that are of type PrintableString, as well as RDNs of type
5789 emailAddress where the value has the type ia5String.
5790 [stefank@valicert.com via Richard Levitte]
5792 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5793 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5794 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5795 the bitwise-OR of the two for use by the majority of applications
5796 wanting this behaviour, and update the docs. The documented
5797 behaviour and actual behaviour were inconsistent and had been
5798 changing anyway, so this is more a bug-fix than a behavioural
5800 [Geoff Thorpe, diagnosed by Nadav Har'El]
5802 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5803 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5806 *) Fix initialization code race conditions in
5807 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5808 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5809 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5810 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5811 ssl2_get_cipher_by_char(),
5812 ssl3_get_cipher_by_char().
5813 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5815 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5816 the cached sessions are flushed, as the remove_cb() might use ex_data
5817 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5818 (see [openssl.org #212]).
5819 [Geoff Thorpe, Lutz Jaenicke]
5821 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5822 length, instead of the encoding length to d2i_ASN1_OBJECT.
5825 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5827 *) [In 0.9.6g-engine release:]
5828 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5829 [Lynn Gazis <lgazis@rainbow.com>]
5831 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5833 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5834 and get fix the header length calculation.
5835 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5836 Alon Kantor <alonk@checkpoint.com> (and others),
5839 *) Use proper error handling instead of 'assertions' in buffer
5840 overflow checks added in 0.9.6e. This prevents DoS (the
5841 assertions could call abort()).
5842 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5844 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5846 *) Add various sanity checks to asn1_get_length() to reject
5847 the ASN1 length bytes if they exceed sizeof(long), will appear
5848 negative or the content length exceeds the length of the
5850 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5852 *) Fix cipher selection routines: ciphers without encryption had no flags
5853 for the cipher strength set and where therefore not handled correctly
5854 by the selection routines (PR #130).
5857 *) Fix EVP_dsa_sha macro.
5861 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5862 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5863 that was added in OpenSSL 0.9.6d.
5865 As the countermeasure turned out to be incompatible with some
5866 broken SSL implementations, the new option is part of SSL_OP_ALL.
5867 SSL_OP_ALL is usually employed when compatibility with weird SSL
5868 implementations is desired (e.g. '-bugs' option to 's_client' and
5869 's_server'), so the new option is automatically set in many
5873 *) Changes in security patch:
5875 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5876 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5877 Air Force Materiel Command, USAF, under agreement number
5880 *) Add various sanity checks to asn1_get_length() to reject
5881 the ASN1 length bytes if they exceed sizeof(long), will appear
5882 negative or the content length exceeds the length of the
5883 supplied buffer. (CVE-2002-0659)
5884 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5886 *) Assertions for various potential buffer overflows, not known to
5888 [Ben Laurie (CHATS)]
5890 *) Various temporary buffers to hold ASCII versions of integers were
5891 too small for 64 bit platforms. (CVE-2002-0655)
5892 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5894 *) Remote buffer overflow in SSL3 protocol - an attacker could
5895 supply an oversized session ID to a client. (CVE-2002-0656)
5896 [Ben Laurie (CHATS)]
5898 *) Remote buffer overflow in SSL2 protocol - an attacker could
5899 supply an oversized client master key. (CVE-2002-0656)
5900 [Ben Laurie (CHATS)]
5902 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5904 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5905 encoded as NULL) with id-dsa-with-sha1.
5906 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5908 *) Check various X509_...() return values in apps/req.c.
5909 [Nils Larsch <nla@trustcenter.de>]
5911 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5912 an end-of-file condition would erronously be flagged, when the CRLF
5913 was just at the end of a processed block. The bug was discovered when
5914 processing data through a buffering memory BIO handing the data to a
5915 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5916 <ptsekov@syntrex.com> and Nedelcho Stanev.
5919 *) Implement a countermeasure against a vulnerability recently found
5920 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5921 before application data chunks to avoid the use of known IVs
5922 with data potentially chosen by the attacker.
5925 *) Fix length checks in ssl3_get_client_hello().
5928 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5929 to prevent ssl3_read_internal() from incorrectly assuming that
5930 ssl3_read_bytes() found application data while handshake
5931 processing was enabled when in fact s->s3->in_read_app_data was
5932 merely automatically cleared during the initial handshake.
5933 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5935 *) Fix object definitions for Private and Enterprise: they were not
5936 recognized in their shortname (=lowercase) representation. Extend
5937 obj_dat.pl to issue an error when using undefined keywords instead
5938 of silently ignoring the problem (Svenning Sorensen
5939 <sss@sss.dnsalias.net>).
5942 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5943 generators, i.e. generators other than 2 and 5. (Previously, the
5944 code did not properly initialise the 'add' and 'rem' values to
5945 BN_generate_prime().)
5947 In the new general case, we do not insist that 'generator' is
5948 actually a primitive root: This requirement is rather pointless;
5949 a generator of the order-q subgroup is just as good, if not
5953 *) Map new X509 verification errors to alerts. Discovered and submitted by
5954 Tom Wu <tom@arcot.com>.
5957 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5958 returning non-zero before the data has been completely received
5959 when using non-blocking I/O.
5960 [Bodo Moeller; problem pointed out by John Hughes]
5962 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5963 [Ben Laurie, Lutz Jaenicke]
5965 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5966 Yoram Zahavi <YoramZ@gilian.com>).
5969 *) Add information about CygWin 1.3 and on, and preserve proper
5970 configuration for the versions before that.
5971 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5973 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5974 check whether we deal with a copy of a session and do not delete from
5975 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5976 <izhar@checkpoint.com>.
5979 *) Do not store session data into the internal session cache, if it
5980 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5981 flag is set). Proposed by Aslam <aslam@funk.com>.
5984 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5988 *) [In 0.9.6d-engine release:]
5989 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5990 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5992 *) Add the configuration target linux-s390x.
5993 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5995 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5996 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5997 variable as an indication that a ClientHello message has been
5998 received. As the flag value will be lost between multiple
5999 invocations of ssl3_accept when using non-blocking I/O, the
6000 function may not be aware that a handshake has actually taken
6001 place, thus preventing a new session from being added to the
6004 To avoid this problem, we now set s->new_session to 2 instead of
6005 using a local variable.
6006 [Lutz Jaenicke, Bodo Moeller]
6008 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6009 if the SSL_R_LENGTH_MISMATCH error is detected.
6010 [Geoff Thorpe, Bodo Moeller]
6012 *) New 'shared_ldflag' column in Configure platform table.
6015 *) Fix EVP_CIPHER_mode macro.
6016 ["Dan S. Camper" <dan@bti.net>]
6018 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6019 type, we must throw them away by setting rr->length to 0.
6020 [D P Chang <dpc@qualys.com>]
6022 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6024 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6025 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6026 worked incorrectly for those cases where range = 10..._2 and
6027 3*range is two bits longer than range.)
6030 *) Only add signing time to PKCS7 structures if it is not already
6034 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6035 OBJ_ld_ce should be OBJ_id_ce.
6036 Also some ip-pda OIDs in crypto/objects/objects.txt were
6037 incorrect (cf. RFC 3039).
6038 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6040 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6041 returns early because it has nothing to do.
6042 [Andy Schneider <andy.schneider@bjss.co.uk>]
6044 *) [In 0.9.6c-engine release:]
6045 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6046 [Andy Schneider <andy.schneider@bjss.co.uk>]
6048 *) [In 0.9.6c-engine release:]
6049 Add support for Cryptographic Appliance's keyserver technology.
6050 (Use engine 'keyclient')
6051 [Cryptographic Appliances and Geoff Thorpe]
6053 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6054 is called via tools/c89.sh because arguments have to be
6055 rearranged (all '-L' options must appear before the first object
6057 [Richard Shapiro <rshapiro@abinitio.com>]
6059 *) [In 0.9.6c-engine release:]
6060 Add support for Broadcom crypto accelerator cards, backported
6062 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6064 *) [In 0.9.6c-engine release:]
6065 Add support for SureWare crypto accelerator cards from
6066 Baltimore Technologies. (Use engine 'sureware')
6067 [Baltimore Technologies and Mark Cox]
6069 *) [In 0.9.6c-engine release:]
6070 Add support for crypto accelerator cards from Accelerated
6071 Encryption Processing, www.aep.ie. (Use engine 'aep')
6072 [AEP Inc. and Mark Cox]
6074 *) Add a configuration entry for gcc on UnixWare.
6075 [Gary Benson <gbenson@redhat.com>]
6077 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6078 messages are stored in a single piece (fixed-length part and
6079 variable-length part combined) and fix various bugs found on the way.
6082 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6083 instead. BIO_gethostbyname() does not know what timeouts are
6084 appropriate, so entries would stay in cache even when they have
6086 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6088 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6089 faced with a pathologically small ClientHello fragment that does
6090 not contain client_version: Instead of aborting with an error,
6091 simply choose the highest available protocol version (i.e.,
6092 TLS 1.0 unless it is disabled). In practice, ClientHello
6093 messages are never sent like this, but this change gives us
6094 strictly correct behaviour at least for TLS.
6097 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6098 never resets s->method to s->ctx->method when called from within
6099 one of the SSL handshake functions.
6100 [Bodo Moeller; problem pointed out by Niko Baric]
6102 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6103 (sent using the client's version number) if client_version is
6104 smaller than the protocol version in use. Also change
6105 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6106 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6107 the client will at least see that alert.
6110 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6114 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6115 client receives HelloRequest while in a handshake.
6116 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6118 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6119 should end in 'break', not 'goto end' which circuments various
6120 cleanups done in state SSL_ST_OK. But session related stuff
6121 must be disabled for SSL_ST_OK in the case that we just sent a
6124 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6125 before just sending a HelloRequest.
6126 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6128 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6129 reveal whether illegal block cipher padding was found or a MAC
6130 verification error occured. (Neither SSLerr() codes nor alerts
6131 are directly visible to potential attackers, but the information
6132 may leak via logfiles.)
6134 Similar changes are not required for the SSL 2.0 implementation
6135 because the number of padding bytes is sent in clear for SSL 2.0,
6136 and the extra bytes are just ignored. However ssl/s2_pkt.c
6137 failed to verify that the purported number of padding bytes is in
6141 *) Add OpenUNIX-8 support including shared libraries
6142 (Boyd Lynn Gerber <gerberb@zenez.com>).
6145 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6146 'wristwatch attack' using huge encoding parameters (cf.
6147 James H. Manger's CRYPTO 2001 paper). Note that the
6148 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6149 encoding parameters and hence was not vulnerable.
6152 *) BN_sqr() bug fix.
6153 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6155 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6156 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6157 followed by modular reduction.
6158 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6160 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6161 equivalent based on BN_pseudo_rand() instead of BN_rand().
6164 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6165 This function was broken, as the check for a new client hello message
6166 to handle SGC did not allow these large messages.
6167 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6170 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6173 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6174 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6177 *) Rework the configuration and shared library support for Tru64 Unix.
6178 The configuration part makes use of modern compiler features and
6179 still retains old compiler behavior for those that run older versions
6180 of the OS. The shared library support part includes a variant that
6181 uses the RPATH feature, and is available through the special
6182 configuration target "alpha-cc-rpath", which will never be selected
6184 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6186 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6187 with the same message size as in ssl3_get_certificate_request().
6188 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6189 messages might inadvertently be reject as too long.
6190 [Petr Lampa <lampa@fee.vutbr.cz>]
6192 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6195 *) Modified SSL library such that the verify_callback that has been set
6196 specificly for an SSL object with SSL_set_verify() is actually being
6197 used. Before the change, a verify_callback set with this function was
6198 ignored and the verify_callback() set in the SSL_CTX at the time of
6199 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6200 to allow the necessary settings.
6203 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6204 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6205 done automatically (in contradiction to the requirements of the C
6206 standard). This made problems when used from OpenSSH.
6209 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6210 dh->length and always used
6212 BN_rand_range(priv_key, dh->p).
6214 BN_rand_range() is not necessary for Diffie-Hellman, and this
6215 specific range makes Diffie-Hellman unnecessarily inefficient if
6216 dh->length (recommended exponent length) is much smaller than the
6217 length of dh->p. We could use BN_rand_range() if the order of
6218 the subgroup was stored in the DH structure, but we only have
6223 BN_rand(priv_key, l, ...)
6225 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6231 RSA_eay_public_encrypt
6232 RSA_eay_private_decrypt
6233 RSA_eay_private_encrypt (signing)
6234 RSA_eay_public_decrypt (signature verification)
6236 (default implementations for RSA_public_encrypt,
6237 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6238 always reject numbers >= n.
6241 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6242 to synchronize access to 'locking_thread'. This is necessary on
6243 systems where access to 'locking_thread' (an 'unsigned long'
6244 variable) is not atomic.
6247 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6248 *before* setting the 'crypto_lock_rand' flag. The previous code had
6249 a race condition if 0 is a valid thread ID.
6250 [Travis Vitek <vitek@roguewave.com>]
6252 *) Add support for shared libraries under Irix.
6253 [Albert Chin-A-Young <china@thewrittenword.com>]
6255 *) Add configuration option to build on Linux on both big-endian and
6257 [Ralf Baechle <ralf@uni-koblenz.de>]
6259 *) Add the possibility to create shared libraries on HP-UX.
6262 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6264 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6265 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6266 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6267 PRNG state recovery was possible based on the output of
6268 one PRNG request appropriately sized to gain knowledge on
6269 'md' followed by enough consecutive 1-byte PRNG requests
6270 to traverse all of 'state'.
6272 1. When updating 'md_local' (the current thread's copy of 'md')
6273 during PRNG output generation, hash all of the previous
6274 'md_local' value, not just the half used for PRNG output.
6276 2. Make the number of bytes from 'state' included into the hash
6277 independent from the number of PRNG bytes requested.
6279 The first measure alone would be sufficient to avoid
6280 Markku-Juhani's attack. (Actually it had never occurred
6281 to me that the half of 'md_local' used for chaining was the
6282 half from which PRNG output bytes were taken -- I had always
6283 assumed that the secret half would be used.) The second
6284 measure makes sure that additional data from 'state' is never
6285 mixed into 'md_local' in small portions; this heuristically
6286 further strengthens the PRNG.
6289 *) Fix crypto/bn/asm/mips3.s.
6292 *) When only the key is given to "enc", the IV is undefined. Print out
6293 an error message in this case.
6296 *) Handle special case when X509_NAME is empty in X509 printing routines.
6299 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6300 positive and less than q.
6303 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6304 used: it isn't thread safe and the add_lock_callback should handle
6306 [Paul Rose <Paul.Rose@bridge.com>]
6308 *) Verify that incoming data obeys the block size in
6309 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6313 [Ulf Möller, Bodo Möller]
6315 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6316 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6317 when fixing the server behaviour for backwards-compatible 'client
6318 hello' messages. (Note that the attack is impractical against
6319 SSL 3.0 and TLS 1.0 anyway because length and version checking
6320 means that the probability of guessing a valid ciphertext is
6321 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6324 Before 0.9.5, the countermeasure (hide the error by generating a
6325 random 'decryption result') did not work properly because
6326 ERR_clear_error() was missing, meaning that SSL_get_error() would
6327 detect the supposedly ignored error.
6329 Both problems are now fixed.
6332 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6333 (previously it was 1024).
6336 *) Fix for compatibility mode trust settings: ignore trust settings
6337 unless some valid trust or reject settings are present.
6340 *) Fix for blowfish EVP: its a variable length cipher.
6343 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6344 parameters in DSA public key structures and return an error in the
6345 DSA routines if parameters are absent.
6348 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6349 in the current directory if neither $RANDFILE nor $HOME was set.
6350 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6351 caused some confusion to Windows users who haven't defined $HOME.
6352 Thus RAND_file_name() is changed again: e_os.h can define a
6353 DEFAULT_HOME, which will be used if $HOME is not set.
6354 For Windows, we use "C:"; on other platforms, we still require
6355 environment variables.
6357 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6358 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6359 having multiple threads call RAND_poll() concurrently.
6362 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6363 combination of a flag and a thread ID variable.
6364 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6365 flag), *other* threads can enter ssleay_add_bytes without obeying
6366 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6367 that they do not hold after the first thread unsets add_do_not_lock).
6370 *) Change bctest again: '-x' expressions are not available in all
6374 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6376 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6377 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6379 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6380 the default extension for executables, if any. Also, make the perl
6381 scripts that use symlink() to test if it really exists and use "cp"
6382 if it doesn't. All this made OpenSSL compilable and installable in
6386 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6387 If SEQUENCE is length is indefinite just set c->slen to the total
6388 amount of data available.
6389 [Steve Henson, reported by shige@FreeBSD.org]
6390 [This change does not apply to 0.9.7.]
6392 *) Change bctest to avoid here-documents inside command substitution
6393 (workaround for FreeBSD /bin/sh bug).
6394 For compatibility with Ultrix, avoid shell functions (introduced
6395 in the bctest version that searches along $PATH).
6398 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6399 with des_encrypt() defined on some operating systems, like Solaris
6403 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6404 On the Importance of Eliminating Errors in Cryptographic
6405 Computations, J. Cryptology 14 (2001) 2, 101-119,
6406 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6409 *) MIPS assembler BIGNUM division bug fix.
6412 *) Disabled incorrect Alpha assembler code.
6415 *) Fix PKCS#7 decode routines so they correctly update the length
6416 after reading an EOC for the EXPLICIT tag.
6418 [This change does not apply to 0.9.7.]
6420 *) Fix bug in PKCS#12 key generation routines. This was triggered
6421 if a 3DES key was generated with a 0 initial byte. Include
6422 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6423 (but broken) behaviour.
6426 *) Enhance bctest to search for a working bc along $PATH and print
6428 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6430 *) Fix memory leaks in err.c: free err_data string if necessary;
6431 don't write to the wrong index in ERR_set_error_data.
6434 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6438 *) Replace rdtsc with _emit statements for VC++ version 5.
6439 [Jeremy Cooper <jeremy@baymoo.org>]
6441 *) Make it possible to reuse SSLv2 sessions.
6444 *) In copy_email() check for >= 0 as a return value for
6445 X509_NAME_get_index_by_NID() since 0 is a valid index.
6446 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6448 *) Avoid coredump with unsupported or invalid public keys by checking if
6449 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6450 PKCS7_verify() fails with non detached data.
6453 *) Don't use getenv in library functions when run as setuid/setgid.
6454 New function OPENSSL_issetugid().
6457 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6458 due to incorrect handling of multi-threading:
6460 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6462 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6464 3. Count how many times MemCheck_off() has been called so that
6465 nested use can be treated correctly. This also avoids
6466 inband-signalling in the previous code (which relied on the
6467 assumption that thread ID 0 is impossible).
6470 *) Add "-rand" option also to s_client and s_server.
6473 *) Fix CPU detection on Irix 6.x.
6474 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6475 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6477 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6480 [This change does not apply to 0.9.7.]
6482 *) Use the cached encoding of an X509_NAME structure rather than
6483 copying it. This is apparently the reason for the libsafe "errors"
6484 but the code is actually correct.
6487 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6488 Bleichenbacher's DSA attack.
6489 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6490 to be set and top=0 forces the highest bit to be set; top=-1 is new
6491 and leaves the highest bit random.
6492 [Ulf Moeller, Bodo Moeller]
6494 *) In the NCONF_...-based implementations for CONF_... queries
6495 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6496 a temporary CONF structure with the data component set to NULL
6497 (which gives segmentation faults in lh_retrieve).
6498 Instead, use NULL for the CONF pointer in CONF_get_string and
6499 CONF_get_number (which may use environment variables) and directly
6500 return NULL from CONF_get_section.
6503 *) Fix potential buffer overrun for EBCDIC.
6506 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6507 keyUsage if basicConstraints absent for a CA.
6510 *) Make SMIME_write_PKCS7() write mail header values with a format that
6511 is more generally accepted (no spaces before the semicolon), since
6512 some programs can't parse those values properly otherwise. Also make
6513 sure BIO's that break lines after each write do not create invalid
6517 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6518 macros previously used would not encode an empty SEQUENCE OF
6519 and break the signature.
6521 [This change does not apply to 0.9.7.]
6523 *) Zero the premaster secret after deriving the master secret in
6527 *) Add some EVP_add_digest_alias registrations (as found in
6528 OpenSSL_add_all_digests()) to SSL_library_init()
6529 aka OpenSSL_add_ssl_algorithms(). This provides improved
6530 compatibility with peers using X.509 certificates
6531 with unconventional AlgorithmIdentifier OIDs.
6534 *) Fix for Irix with NO_ASM.
6535 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6537 *) ./config script fixes.
6538 [Ulf Moeller, Richard Levitte]
6540 *) Fix 'openssl passwd -1'.
6543 *) Change PKCS12_key_gen_asc() so it can cope with non null
6544 terminated strings whose length is passed in the passlen
6545 parameter, for example from PEM callbacks. This was done
6546 by adding an extra length parameter to asc2uni().
6547 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6549 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6550 call failed, free the DSA structure.
6553 *) Fix to uni2asc() to cope with zero length Unicode strings.
6554 These are present in some PKCS#12 files.
6557 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6558 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6559 when writing a 32767 byte record.
6560 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6562 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6563 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6565 (RSA objects have a reference count access to which is protected
6566 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6567 so they are meant to be shared between threads.)
6568 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6569 "Reddie, Steven" <Steven.Reddie@ca.com>]
6571 *) Fix a deadlock in CRYPTO_mem_leaks().
6574 *) Use better test patterns in bntest.
6577 *) rand_win.c fix for Borland C.
6580 *) BN_rshift bugfix for n == 0.
6583 *) Add a 'bctest' script that checks for some known 'bc' bugs
6584 so that 'make test' does not abort just because 'bc' is broken.
6587 *) Store verify_result within SSL_SESSION also for client side to
6588 avoid potential security hole. (Re-used sessions on the client side
6589 always resulted in verify_result==X509_V_OK, not using the original
6590 result of the server certificate verification.)
6593 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6594 SSL3_RT_APPLICATION_DATA, return 0.
6595 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6599 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6600 releases, have been re-implemented by renaming the previous
6601 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6602 and ssl3_read_internal, respectively, and adding 'peek' parameters
6603 to them. The new ssl[23]_{read,peek} functions are calls to
6604 ssl[23]_read_internal with the 'peek' flag set appropriately.
6605 A 'peek' parameter has also been added to ssl3_read_bytes, which
6606 does the actual work for ssl3_read_internal.
6609 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6610 the method-specific "init()" handler. Also clean up ex_data after
6611 calling the method-specific "finish()" handler. Previously, this was
6612 happening the other way round.
6615 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6616 The previous value, 12, was not always sufficient for BN_mod_exp().
6619 *) Make sure that shared libraries get the internal name engine with
6620 the full version number and not just 0. This should mark the
6621 shared libraries as not backward compatible. Of course, this should
6622 be changed again when we can guarantee backward binary compatibility.
6625 *) Fix typo in get_cert_by_subject() in by_dir.c
6626 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6628 *) Rework the system to generate shared libraries:
6630 - Make note of the expected extension for the shared libraries and
6631 if there is a need for symbolic links from for example libcrypto.so.0
6632 to libcrypto.so.0.9.7. There is extended info in Configure for
6635 - Make as few rebuilds of the shared libraries as possible.
6637 - Still avoid linking the OpenSSL programs with the shared libraries.
6639 - When installing, install the shared libraries separately from the
6643 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6645 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6646 and not in SSL_clear because the latter is also used by the
6647 accept/connect functions; previously, the settings made by
6648 SSL_set_read_ahead would be lost during the handshake.
6649 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6651 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6652 Previously, it would create entries for disableed algorithms no
6656 *) Added several new manual pages for SSL_* function.
6659 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6661 *) In ssl23_get_client_hello, generate an error message when faced
6662 with an initial SSL 3.0/TLS record that is too small to contain the
6663 first two bytes of the ClientHello message, i.e. client_version.
6664 (Note that this is a pathologic case that probably has never happened
6665 in real life.) The previous approach was to use the version number
6666 from the record header as a substitute; but our protocol choice
6667 should not depend on that one because it is not authenticated
6668 by the Finished messages.
6671 *) More robust randomness gathering functions for Windows.
6672 [Jeffrey Altman <jaltman@columbia.edu>]
6674 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6675 not set then we don't setup the error code for issuer check errors
6676 to avoid possibly overwriting other errors which the callback does
6677 handle. If an application does set the flag then we assume it knows
6678 what it is doing and can handle the new informational codes
6682 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6683 a general "ANY" type, as such it should be able to decode anything
6684 including tagged types. However it didn't check the class so it would
6685 wrongly interpret tagged types in the same way as their universal
6686 counterpart and unknown types were just rejected. Changed so that the
6687 tagged and unknown types are handled in the same way as a SEQUENCE:
6688 that is the encoding is stored intact. There is also a new type
6689 "V_ASN1_OTHER" which is used when the class is not universal, in this
6690 case we have no idea what the actual type is so we just lump them all
6694 *) On VMS, stdout may very well lead to a file that is written to
6695 in a record-oriented fashion. That means that every write() will
6696 write a separate record, which will be read separately by the
6697 programs trying to read from it. This can be very confusing.
6699 The solution is to put a BIO filter in the way that will buffer
6700 text until a linefeed is reached, and then write everything a
6701 line at a time, so every record written will be an actual line,
6702 not chunks of lines and not (usually doesn't happen, but I've
6703 seen it once) several lines in one record. BIO_f_linebuffer() is
6706 Currently, it's a VMS-only method, because that's where it has
6707 been tested well enough.
6710 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6711 it can return incorrect results.
6712 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6713 but it was in 0.9.6-beta[12].)
6716 *) Disable the check for content being present when verifying detached
6717 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6718 include zero length content when signing messages.
6721 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6722 BIO_ctrl (for BIO pairs).
6725 *) Add DSO method for VMS.
6728 *) Bug fix: Montgomery multiplication could produce results with the
6732 *) Add RPM specification openssl.spec and modify it to build three
6733 packages. The default package contains applications, application
6734 documentation and run-time libraries. The devel package contains
6735 include files, static libraries and function documentation. The
6736 doc package contains the contents of the doc directory. The original
6737 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6740 *) Add a large number of documentation files for many SSL routines.
6741 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6743 *) Add a configuration entry for Sony News 4.
6744 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6746 *) Don't set the two most significant bits to one when generating a
6747 random number < q in the DSA library.
6750 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6751 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6752 the underlying transport is blocking) if a handshake took place.
6753 (The default behaviour is needed by applications such as s_client
6754 and s_server that use select() to determine when to use SSL_read;
6755 but for applications that know in advance when to expect data, it
6756 just makes things more complicated.)
6759 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6763 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6764 work better on such systems.
6765 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6767 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6768 Update PKCS12_parse() so it copies the friendlyName and the
6769 keyid to the certificates aux info.
6772 *) Fix bug in PKCS7_verify() which caused an infinite loop
6773 if there was more than one signature.
6774 [Sven Uszpelkat <su@celocom.de>]
6776 *) Major change in util/mkdef.pl to include extra information
6777 about each symbol, as well as presentig variables as well
6778 as functions. This change means that there's n more need
6779 to rebuild the .num files when some algorithms are excluded.
6782 *) Allow the verify time to be set by an application,
6783 rather than always using the current time.
6786 *) Phase 2 verify code reorganisation. The certificate
6787 verify code now looks up an issuer certificate by a
6788 number of criteria: subject name, authority key id
6789 and key usage. It also verifies self signed certificates
6790 by the same criteria. The main comparison function is
6791 X509_check_issued() which performs these checks.
6793 Lot of changes were necessary in order to support this
6794 without completely rewriting the lookup code.
6796 Authority and subject key identifier are now cached.
6798 The LHASH 'certs' is X509_STORE has now been replaced
6799 by a STACK_OF(X509_OBJECT). This is mainly because an
6800 LHASH can't store or retrieve multiple objects with
6801 the same hash value.
6803 As a result various functions (which were all internal
6804 use only) have changed to handle the new X509_STORE
6805 structure. This will break anything that messed round
6806 with X509_STORE internally.
6808 The functions X509_STORE_add_cert() now checks for an
6809 exact match, rather than just subject name.
6811 The X509_STORE API doesn't directly support the retrieval
6812 of multiple certificates matching a given criteria, however
6813 this can be worked round by performing a lookup first
6814 (which will fill the cache with candidate certificates)
6815 and then examining the cache for matches. This is probably
6816 the best we can do without throwing out X509_LOOKUP
6817 entirely (maybe later...).
6819 The X509_VERIFY_CTX structure has been enhanced considerably.
6821 All certificate lookup operations now go via a get_issuer()
6822 callback. Although this currently uses an X509_STORE it
6823 can be replaced by custom lookups. This is a simple way
6824 to bypass the X509_STORE hackery necessary to make this
6825 work and makes it possible to use more efficient techniques
6826 in future. A very simple version which uses a simple
6827 STACK for its trusted certificate store is also provided
6828 using X509_STORE_CTX_trusted_stack().
6830 The verify_cb() and verify() callbacks now have equivalents
6831 in the X509_STORE_CTX structure.
6833 X509_STORE_CTX also has a 'flags' field which can be used
6834 to customise the verify behaviour.
6837 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6838 excludes S/MIME capabilities.
6841 *) When a certificate request is read in keep a copy of the
6842 original encoding of the signed data and use it when outputing
6843 again. Signatures then use the original encoding rather than
6844 a decoded, encoded version which may cause problems if the
6845 request is improperly encoded.
6848 *) For consistency with other BIO_puts implementations, call
6849 buffer_write(b, ...) directly in buffer_puts instead of calling
6852 In BIO_puts, increment b->num_write as in BIO_write.
6853 [Peter.Sylvester@EdelWeb.fr]
6855 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6856 BN_zero, we may not return a BIGNUM with an array consisting of
6860 *) Avoid calling abort() from within the library when problems are
6861 detected, except if preprocessor symbols have been defined
6862 (such as REF_CHECK, BN_DEBUG etc.).
6865 *) New openssl application 'rsautl'. This utility can be
6866 used for low level RSA operations. DER public key
6867 BIO/fp routines also added.
6870 *) New Configure entry and patches for compiling on QNX 4.
6871 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6873 *) A demo state-machine implementation was sponsored by
6874 Nuron (http://www.nuron.com/) and is now available in
6875 demos/state_machine.
6878 *) New options added to the 'dgst' utility for signature
6879 generation and verification.
6882 *) Unrecognized PKCS#7 content types are now handled via a
6883 catch all ASN1_TYPE structure. This allows unsupported
6884 types to be stored as a "blob" and an application can
6885 encode and decode it manually.
6888 *) Fix various signed/unsigned issues to make a_strex.c
6890 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6892 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6893 length if passed a buffer. ASN1_INTEGER_to_BN failed
6894 if passed a NULL BN and its argument was negative.
6895 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6897 *) Modification to PKCS#7 encoding routines to output definite
6898 length encoding. Since currently the whole structures are in
6899 memory there's not real point in using indefinite length
6900 constructed encoding. However if OpenSSL is compiled with
6901 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6904 *) Added BIO_vprintf() and BIO_vsnprintf().
6907 *) Added more prefixes to parse for in the the strings written
6908 through a logging bio, to cover all the levels that are available
6909 through syslog. The prefixes are now:
6911 PANIC, EMERG, EMR => LOG_EMERG
6912 ALERT, ALR => LOG_ALERT
6913 CRIT, CRI => LOG_CRIT
6914 ERROR, ERR => LOG_ERR
6915 WARNING, WARN, WAR => LOG_WARNING
6916 NOTICE, NOTE, NOT => LOG_NOTICE
6917 INFO, INF => LOG_INFO
6918 DEBUG, DBG => LOG_DEBUG
6920 and as before, if none of those prefixes are present at the
6921 beginning of the string, LOG_ERR is chosen.
6923 On Win32, the LOG_* levels are mapped according to this:
6925 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6926 LOG_WARNING => EVENTLOG_WARNING_TYPE
6927 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6931 *) Made it possible to reconfigure with just the configuration
6932 argument "reconf" or "reconfigure". The command line arguments
6933 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6934 and are retrieved from there when reconfiguring.
6938 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6940 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6943 *) The obj_dat.pl script was messing up the sorting of object
6944 names. The reason was that it compared the quoted version
6945 of strings as a result "OCSP" > "OCSP Signing" because
6946 " > SPACE. Changed script to store unquoted versions of
6947 names and add quotes on output. It was also omitting some
6948 names from the lookup table if they were given a default
6949 value (that is if SN is missing it is given the same
6950 value as LN and vice versa), these are now added on the
6951 grounds that if an object has a name we should be able to
6952 look it up. Finally added warning output when duplicate
6953 short or long names are found.
6956 *) Changes needed for Tandem NSK.
6957 [Scott Uroff <scott@xypro.com>]
6959 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6960 RSA_padding_check_SSLv23(), special padding was never detected
6961 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6962 version rollback attacks was not effective.
6964 In s23_clnt.c, don't use special rollback-attack detection padding
6965 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6966 client; similarly, in s23_srvr.c, don't do the rollback check if
6967 SSL 2.0 is the only protocol enabled in the server.
6970 *) Make it possible to get hexdumps of unprintable data with 'openssl
6971 asn1parse'. By implication, the functions ASN1_parse_dump() and
6972 BIO_dump_indent() are added.
6975 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6976 these print out strings and name structures based on various
6977 flags including RFC2253 support and proper handling of
6978 multibyte characters. Added options to the 'x509' utility
6979 to allow the various flags to be set.
6982 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6983 Also change the functions X509_cmp_current_time() and
6984 X509_gmtime_adj() work with an ASN1_TIME structure,
6985 this will enable certificates using GeneralizedTime in validity
6986 dates to be checked.
6989 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6990 negative public key encodings) on by default,
6991 NO_NEG_PUBKEY_BUG can be set to disable it.
6994 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6995 content octets. An i2c_ASN1_OBJECT is unnecessary because
6996 the encoding can be trivially obtained from the structure.
6999 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7000 not read locks (CRYPTO_r_[un]lock).
7003 *) A first attempt at creating official support for shared
7004 libraries through configuration. I've kept it so the
7005 default is static libraries only, and the OpenSSL programs
7006 are always statically linked for now, but there are
7007 preparations for dynamic linking in place.
7008 This has been tested on Linux and Tru64.
7011 *) Randomness polling function for Win9x, as described in:
7012 Peter Gutmann, Software Generation of Practically Strong
7016 *) Fix so PRNG is seeded in req if using an already existing
7020 *) New options to smime application. -inform and -outform
7021 allow alternative formats for the S/MIME message including
7022 PEM and DER. The -content option allows the content to be
7023 specified separately. This should allow things like Netscape
7024 form signing output easier to verify.
7027 *) Fix the ASN1 encoding of tags using the 'long form'.
7030 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7031 STRING types. These convert content octets to and from the
7032 underlying type. The actual tag and length octets are
7033 already assumed to have been read in and checked. These
7034 are needed because all other string types have virtually
7035 identical handling apart from the tag. By having versions
7036 of the ASN1 functions that just operate on content octets
7037 IMPLICIT tagging can be handled properly. It also allows
7038 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7039 and ASN1_INTEGER are identical apart from the tag.
7042 *) Change the handling of OID objects as follows:
7044 - New object identifiers are inserted in objects.txt, following
7045 the syntax given in objects.README.
7046 - objects.pl is used to process obj_mac.num and create a new
7048 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7051 This is currently kind of a hack, and the perl code in objects.pl
7052 isn't very elegant, but it works as I intended. The simplest way
7053 to check that it worked correctly is to look in obj_dat.h and
7054 check the array nid_objs and make sure the objects haven't moved
7055 around (this is important!). Additions are OK, as well as
7056 consistent name changes.
7059 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7062 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7063 The given file adds to whatever has already been seeded into the
7064 random pool through the RANDFILE configuration file option or
7065 environment variable, or the default random state file.
7068 *) mkstack.pl now sorts each macro group into lexical order.
7069 Previously the output order depended on the order the files
7070 appeared in the directory, resulting in needless rewriting
7074 *) Patches to make OpenSSL compile under Win32 again. Mostly
7075 work arounds for the VC++ problem that it treats func() as
7076 func(void). Also stripped out the parts of mkdef.pl that
7077 added extra typesafe functions: these no longer exist.
7080 *) Reorganisation of the stack code. The macros are now all
7081 collected in safestack.h . Each macro is defined in terms of
7082 a "stack macro" of the form SKM_<name>(type, a, b). The
7083 DEBUG_SAFESTACK is now handled in terms of function casts,
7084 this has the advantage of retaining type safety without the
7085 use of additional functions. If DEBUG_SAFESTACK is not defined
7086 then the non typesafe macros are used instead. Also modified the
7087 mkstack.pl script to handle the new form. Needs testing to see
7088 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7089 the default if no major problems. Similar behaviour for ASN1_SET_OF
7090 and PKCS12_STACK_OF.
7093 *) When some versions of IIS use the 'NET' form of private key the
7094 key derivation algorithm is different. Normally MD5(password) is
7095 used as a 128 bit RC4 key. In the modified case
7096 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7097 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7098 as the old Netscape_RSA functions except they have an additional
7099 'sgckey' parameter which uses the modified algorithm. Also added
7100 an -sgckey command line option to the rsa utility. Thanks to
7101 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7102 algorithm to openssl-dev.
7105 *) The evp_local.h macros were using 'c.##kname' which resulted in
7106 invalid expansion on some systems (SCO 5.0.5 for example).
7107 Corrected to 'c.kname'.
7108 [Phillip Porch <root@theporch.com>]
7110 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7111 a STACK of email addresses from a certificate or request, these look
7112 in the subject name and the subject alternative name extensions and
7113 omit any duplicate addresses.
7116 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7117 This makes DSA verification about 2 % faster.
7120 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7121 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7122 plus overhead for 1024 bit moduli).
7123 This makes exponentiations about 0.5 % faster for 1024 bit
7124 exponents (as measured by "openssl speed rsa2048").
7127 *) Rename memory handling macros to avoid conflicts with other
7129 Malloc => OPENSSL_malloc
7130 Malloc_locked => OPENSSL_malloc_locked
7131 Realloc => OPENSSL_realloc
7132 Free => OPENSSL_free
7135 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7136 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7139 *) CygWin32 support.
7140 [John Jarvie <jjarvie@newsguy.com>]
7142 *) The type-safe stack code has been rejigged. It is now only compiled
7143 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7144 by default all type-specific stack functions are "#define"d back to
7145 standard stack functions. This results in more streamlined output
7146 but retains the type-safety checking possibilities of the original
7150 *) The STACK code has been cleaned up, and certain type declarations
7151 that didn't make a lot of sense have been brought in line. This has
7152 also involved a cleanup of sorts in safestack.h to more correctly
7153 map type-safe stack functions onto their plain stack counterparts.
7154 This work has also resulted in a variety of "const"ifications of
7155 lots of the code, especially "_cmp" operations which should normally
7156 be prototyped with "const" parameters anyway.
7159 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7160 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7161 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7162 where all of 'md' is used each time the PRNG is used, but 'state'
7163 is used only indexed by a cyclic counter. As entropy may not be
7164 well distributed from the beginning, 'md' is important as a
7165 chaining variable. However, the output function chains only half
7166 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7167 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7168 in all of 'state' being rewritten, with the new values depending
7169 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7172 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7173 the handshake is continued after ssl_verify_cert_chain();
7174 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7175 can lead to 'unexplainable' connection aborts later.
7176 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7178 *) Major EVP API cipher revision.
7179 Add hooks for extra EVP features. This allows various cipher
7180 parameters to be set in the EVP interface. Support added for variable
7181 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7182 setting of RC2 and RC5 parameters.
7184 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7187 Remove lots of duplicated code from the EVP library. For example *every*
7188 cipher init() function handles the 'iv' in the same way according to the
7189 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7190 for CFB and OFB modes they zero ctx->num.
7192 New functionality allows removal of S/MIME code RC2 hack.
7194 Most of the routines have the same form and so can be declared in terms
7197 By shifting this to the top level EVP_CipherInit() it can be removed from
7198 all individual ciphers. If the cipher wants to handle IVs or keys
7199 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7202 Change lots of functions like EVP_EncryptUpdate() to now return a
7203 value: although software versions of the algorithms cannot fail
7204 any installed hardware versions can.
7207 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7208 this option is set, tolerate broken clients that send the negotiated
7209 protocol version number instead of the requested protocol version
7213 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7214 i.e. non-zero for export ciphersuites, zero otherwise.
7215 Previous versions had this flag inverted, inconsistent with
7216 rsa_tmp_cb (..._TMP_RSA_CB).
7217 [Bodo Moeller; problem reported by Amit Chopra]
7219 *) Add missing DSA library text string. Work around for some IIS
7220 key files with invalid SEQUENCE encoding.
7223 *) Add a document (doc/standards.txt) that list all kinds of standards
7224 and so on that are implemented in OpenSSL.
7227 *) Enhance c_rehash script. Old version would mishandle certificates
7228 with the same subject name hash and wouldn't handle CRLs at all.
7229 Added -fingerprint option to crl utility, to support new c_rehash
7233 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7236 *) Fix for SSL server purpose checking. Server checking was
7237 rejecting certificates which had extended key usage present
7238 but no ssl client purpose.
7239 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7241 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7242 is a little unclear about how a blank password is handled.
7243 Since the password in encoded as a BMPString with terminating
7244 double NULL a zero length password would end up as just the
7245 double NULL. However no password at all is different and is
7246 handled differently in the PKCS#12 key generation code. NS
7247 treats a blank password as zero length. MSIE treats it as no
7248 password on export: but it will try both on import. We now do
7249 the same: PKCS12_parse() tries zero length and no password if
7250 the password is set to "" or NULL (NULL is now a valid password:
7251 it wasn't before) as does the pkcs12 application.
7254 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7255 perror when PEM_read_bio_X509_REQ fails, the error message must
7256 be obtained from the error queue.
7259 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7260 it in ERR_remove_state if appropriate, and change ERR_get_state
7261 accordingly to avoid race conditions (this is necessary because
7262 thread_hash is no longer constant once set).
7265 *) Bugfix for linux-elf makefile.one.
7268 *) RSA_get_default_method() will now cause a default
7269 RSA_METHOD to be chosen if one doesn't exist already.
7270 Previously this was only set during a call to RSA_new()
7271 or RSA_new_method(NULL) meaning it was possible for
7272 RSA_get_default_method() to return NULL.
7275 *) Added native name translation to the existing DSO code
7276 that will convert (if the flag to do so is set) filenames
7277 that are sufficiently small and have no path information
7278 into a canonical native form. Eg. "blah" converted to
7279 "libblah.so" or "blah.dll" etc.
7282 *) New function ERR_error_string_n(e, buf, len) which is like
7283 ERR_error_string(e, buf), but writes at most 'len' bytes
7284 including the 0 terminator. For ERR_error_string_n, 'buf'
7286 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7288 *) CONF library reworked to become more general. A new CONF
7289 configuration file reader "class" is implemented as well as a
7290 new functions (NCONF_*, for "New CONF") to handle it. The now
7291 old CONF_* functions are still there, but are reimplemented to
7292 work in terms of the new functions. Also, a set of functions
7293 to handle the internal storage of the configuration data is
7294 provided to make it easier to write new configuration file
7295 reader "classes" (I can definitely see something reading a
7296 configuration file in XML format, for example), called _CONF_*,
7297 or "the configuration storage API"...
7299 The new configuration file reading functions are:
7301 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7302 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7304 NCONF_default, NCONF_WIN32
7306 NCONF_dump_fp, NCONF_dump_bio
7308 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7309 NCONF_new creates a new CONF object. This works in the same way
7310 as other interfaces in OpenSSL, like the BIO interface.
7311 NCONF_dump_* dump the internal storage of the configuration file,
7312 which is useful for debugging. All other functions take the same
7313 arguments as the old CONF_* functions wth the exception of the
7314 first that must be a `CONF *' instead of a `LHASH *'.
7316 To make it easer to use the new classes with the old CONF_* functions,
7317 the function CONF_set_default_method is provided.
7320 *) Add '-tls1' option to 'openssl ciphers', which was already
7321 mentioned in the documentation but had not been implemented.
7322 (This option is not yet really useful because even the additional
7323 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7326 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7327 OpenSSL-based applications) load shared libraries and bind to
7328 them in a portable way.
7329 [Geoff Thorpe, with contributions from Richard Levitte]
7331 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7333 *) Make sure _lrotl and _lrotr are only used with MSVC.
7335 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7336 (the default implementation of RAND_status).
7338 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7339 to '-clrext' (= clear extensions), as intended and documented.
7340 [Bodo Moeller; inconsistency pointed out by Michael Attili
7343 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7344 was larger than the MD block size.
7345 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7347 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7348 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7349 using the passed key: if the passed key was a private key the result
7350 of X509_print(), for example, would be to print out all the private key
7354 *) des_quad_cksum() byte order bug fix.
7355 [Ulf Möller, using the problem description in krb4-0.9.7, where
7356 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7358 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7360 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7362 *) For easily testing in shell scripts whether some command
7363 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7364 returns with exit code 0 iff no command of the given name is available.
7365 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7366 the output goes to stdout and nothing is printed to stderr.
7367 Additional arguments are always ignored.
7369 Since for each cipher there is a command of the same name,
7370 the 'no-cipher' compilation switches can be tested this way.
7372 ('openssl no-XXX' is not able to detect pseudo-commands such
7373 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7376 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7379 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7380 is set; it will be thrown away anyway because each handshake creates
7382 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7383 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7384 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7385 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7388 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7389 'Q' and 'R' lose their special meanings (quit/renegotiate).
7390 This is part of what -quiet does; unlike -quiet, -ign_eof
7391 does not suppress any output.
7394 *) Add compatibility options to the purpose and trust code. The
7395 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7396 accepts a certificate or CA, this was the previous behaviour,
7397 with all the associated security issues.
7399 X509_TRUST_COMPAT is the old trust behaviour: only and
7400 automatically trust self signed roots in certificate store. A
7401 new trust setting X509_TRUST_DEFAULT is used to specify that
7402 a purpose has no associated trust setting and it should instead
7403 use the value in the default purpose.
7406 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7407 and fix a memory leak.
7410 *) In util/mkerr.pl (which implements 'make errors'), preserve
7411 reason strings from the previous version of the .c file, as
7412 the default to have only downcase letters (and digits) in
7413 automatically generated reasons codes is not always appropriate.
7416 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7417 using strerror. Previously, ERR_reason_error_string() returned
7418 library names as reason strings for SYSerr; but SYSerr is a special
7419 case where small numbers are errno values, not library numbers.
7422 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7423 converts DSA parameters into DH parameters. (When creating parameters,
7424 DSA_generate_parameters is used.)
7427 *) Include 'length' (recommended exponent length) in C code generated
7428 by 'openssl dhparam -C'.
7431 *) The second argument to set_label in perlasm was already being used
7432 so couldn't be used as a "file scope" flag. Moved to third argument
7436 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7437 instead of RAND_bytes for encryption IVs and salts.
7440 *) Include RAND_status() into RAND_METHOD instead of implementing
7441 it only for md_rand.c Otherwise replacing the PRNG by calling
7442 RAND_set_rand_method would be impossible.
7445 *) Don't let DSA_generate_key() enter an infinite loop if the random
7446 number generation fails.
7449 *) New 'rand' application for creating pseudo-random output.
7452 *) Added configuration support for Linux/IA64
7453 [Rolf Haberrecker <rolf@suse.de>]
7455 *) Assembler module support for Mingw32.
7458 *) Shared library support for HPUX (in shlib/).
7459 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7461 *) Shared library support for Solaris gcc.
7462 [Lutz Behnke <behnke@trustcenter.de>]
7464 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7466 *) PKCS7_encrypt() was adding text MIME headers twice because they
7467 were added manually and by SMIME_crlf_copy().
7470 *) In bntest.c don't call BN_rand with zero bits argument.
7471 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7473 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7474 case was implemented. This caused BN_div_recp() to fail occasionally.
7477 *) Add an optional second argument to the set_label() in the perl
7478 assembly language builder. If this argument exists and is set
7479 to 1 it signals that the assembler should use a symbol whose
7480 scope is the entire file, not just the current function. This
7481 is needed with MASM which uses the format label:: for this scope.
7482 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7484 *) Change the ASN1 types so they are typedefs by default. Before
7485 almost all types were #define'd to ASN1_STRING which was causing
7486 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7490 *) Change names of new functions to the new get1/get0 naming
7491 convention: After 'get1', the caller owns a reference count
7492 and has to call ..._free; 'get0' returns a pointer to some
7493 data structure without incrementing reference counters.
7494 (Some of the existing 'get' functions increment a reference
7495 counter, some don't.)
7496 Similarly, 'set1' and 'add1' functions increase reference
7497 counters or duplicate objects.
7500 *) Allow for the possibility of temp RSA key generation failure:
7501 the code used to assume it always worked and crashed on failure.
7504 *) Fix potential buffer overrun problem in BIO_printf().
7505 [Ulf Möller, using public domain code by Patrick Powell; problem
7506 pointed out by David Sacerdote <das33@cornell.edu>]
7508 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7509 RAND_egd() and RAND_status(). In the command line application,
7510 the EGD socket can be specified like a seed file using RANDFILE
7514 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7515 Some CAs (e.g. Verisign) distribute certificates in this form.
7518 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7519 list to exclude them. This means that no special compilation option
7520 is needed to use anonymous DH: it just needs to be included in the
7524 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7525 EVP_MD_type. The old functionality is available in a new macro called
7526 EVP_MD_md(). Change code that uses it and update docs.
7529 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7530 where the 'void *' argument is replaced by a function pointer argument.
7531 Previously 'void *' was abused to point to functions, which works on
7532 many platforms, but is not correct. As these functions are usually
7533 called by macros defined in OpenSSL header files, most source code
7534 should work without changes.
7537 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7538 sections with information on -D... compiler switches used for
7539 compiling the library so that applications can see them. To enable
7540 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7541 must be defined. E.g.,
7542 #define OPENSSL_ALGORITHM_DEFINES
7543 #include <openssl/opensslconf.h>
7544 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7545 [Richard Levitte, Ulf and Bodo Möller]
7547 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7551 *) Change the 'other' type in certificate aux info to a STACK_OF
7552 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7553 the required ASN1 format: arbitrary types determined by an OID.
7556 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7557 argument to 'req'. This is not because the function is newer or
7558 better than others it just uses the work 'NEW' in the certificate
7559 request header lines. Some software needs this.
7562 *) Reorganise password command line arguments: now passwords can be
7563 obtained from various sources. Delete the PEM_cb function and make
7564 it the default behaviour: i.e. if the callback is NULL and the
7565 usrdata argument is not NULL interpret it as a null terminated pass
7566 phrase. If usrdata and the callback are NULL then the pass phrase
7567 is prompted for as usual.
7570 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7571 the support is automatically enabled. The resulting binaries will
7572 autodetect the card and use it if present.
7573 [Ben Laurie and Compaq Inc.]
7575 *) Work around for Netscape hang bug. This sends certificate request
7576 and server done in one record. Since this is perfectly legal in the
7577 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7578 the bugs/SSLv3 entry for more info.
7581 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7584 *) Add -rand argument to smime and pkcs12 applications and read/write
7588 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7591 *) Add command line password options to the remaining applications.
7594 *) Bug fix for BN_div_recp() for numerators with an even number of
7598 *) More tests in bntest.c, and changed test_bn output.
7601 *) ./config recognizes MacOS X now.
7604 *) Bug fix for BN_div() when the first words of num and divsor are
7605 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7608 *) Add support for various broken PKCS#8 formats, and command line
7609 options to produce them.
7612 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7613 get temporary BIGNUMs from a BN_CTX.
7616 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7620 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7621 include a #define from the old name to the new. The original intent
7622 was that statically linked binaries could for example just call
7623 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7624 link with digests. This never worked becayse SSLeay_add_all_digests()
7625 and SSLeay_add_all_ciphers() were in the same source file so calling
7626 one would link with the other. They are now in separate source files.
7629 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7632 *) Use a less unusual form of the Miller-Rabin primality test (it used
7633 a binary algorithm for exponentiation integrated into the Miller-Rabin
7634 loop, our standard modexp algorithms are faster).
7637 *) Support for the EBCDIC character set completed.
7638 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7640 *) Source code cleanups: use const where appropriate, eliminate casts,
7641 use void * instead of char * in lhash.
7644 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7645 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7646 this the server could overwrite ephemeral keys that the client
7650 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7651 using 50 iterations of the Rabin-Miller test.
7653 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7654 iterations of the Rabin-Miller test as required by the appendix
7655 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7656 As BN_is_prime_fasttest includes trial division, DSA parameter
7657 generation becomes much faster.
7659 This implies a change for the callback functions in DSA_is_prime
7660 and DSA_generate_parameters: The callback function is called once
7661 for each positive witness in the Rabin-Miller test, not just
7662 occasionally in the inner loop; and the parameters to the
7663 callback function now provide an iteration count for the outer
7664 loop rather than for the current invocation of the inner loop.
7665 DSA_generate_parameters additionally can call the callback
7666 function with an 'iteration count' of -1, meaning that a
7667 candidate has passed the trial division test (when q is generated
7668 from an application-provided seed, trial division is skipped).
7671 *) New function BN_is_prime_fasttest that optionally does trial
7672 division before starting the Rabin-Miller test and has
7673 an additional BN_CTX * argument (whereas BN_is_prime always
7674 has to allocate at least one BN_CTX).
7675 'callback(1, -1, cb_arg)' is called when a number has passed the
7676 trial division stage.
7679 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7683 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7686 *) New function BN_pseudo_rand().
7689 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7690 bignum version of BN_from_montgomery() with the working code from
7691 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7695 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7696 made it impossible to use the same SSL_SESSION data structure in
7697 SSL2 clients in multiple threads.
7700 *) The return value of RAND_load_file() no longer counts bytes obtained
7701 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7702 to seed the PRNG (previously an explicit byte count was required).
7703 [Ulf Möller, Bodo Möller]
7705 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7706 used (char *) instead of (void *) and had casts all over the place.
7709 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7712 *) Retain source code compatibility for BN_prime_checks macro:
7713 BN_is_prime(..., BN_prime_checks, ...) now uses
7714 BN_prime_checks_for_size to determine the appropriate number of
7715 Rabin-Miller iterations.
7718 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7719 DH_CHECK_P_NOT_SAFE_PRIME.
7720 (Check if this is true? OpenPGP calls them "strong".)
7723 *) Merge the functionality of "dh" and "gendh" programs into a new program
7724 "dhparam". The old programs are retained for now but will handle DH keys
7725 (instead of parameters) in future.
7728 *) Make the ciphers, s_server and s_client programs check the return values
7729 when a new cipher list is set.
7732 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7733 ciphers. Before when the 56bit ciphers were enabled the sorting was
7736 The syntax for the cipher sorting has been extended to support sorting by
7737 cipher-strength (using the strength_bits hard coded in the tables).
7738 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7740 Fix a bug in the cipher-command parser: when supplying a cipher command
7741 string with an "undefined" symbol (neither command nor alphanumeric
7742 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7743 an error is flagged.
7745 Due to the strength-sorting extension, the code of the
7746 ssl_create_cipher_list() function was completely rearranged. I hope that
7747 the readability was also increased :-)
7748 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7750 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7751 for the first serial number and places 2 in the serial number file. This
7752 avoids problems when the root CA is created with serial number zero and
7753 the first user certificate has the same issuer name and serial number
7757 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7758 the new code. Add documentation for this stuff.
7761 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7762 X509_*() to X509at_*() on the grounds that they don't handle X509
7763 structures and behave in an analagous way to the X509v3 functions:
7764 they shouldn't be called directly but wrapper functions should be used
7767 So we also now have some wrapper functions that call the X509at functions
7768 when passed certificate requests. (TO DO: similar things can be done with
7769 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7770 things. Some of these need some d2i or i2d and print functionality
7771 because they handle more complex structures.)
7774 *) Add missing #ifndefs that caused missing symbols when building libssl
7775 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7776 NO_RSA in ssl/s2*.c.
7777 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7779 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7780 has a return value which indicates the quality of the random data
7781 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7782 error queue. New function RAND_pseudo_bytes() generates output that is
7783 guaranteed to be unique but not unpredictable. RAND_add is like
7784 RAND_seed, but takes an extra argument for an entropy estimate
7785 (RAND_seed always assumes full entropy).
7788 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7789 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7790 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7791 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7792 false-positive rate of at most 2^-80 for random input.
7795 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7798 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7799 in the 0.9.5 release), this returns the chain
7800 from an X509_CTX structure with a dup of the stack and all
7801 the X509 reference counts upped: so the stack will exist
7802 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7805 Also make SSL_SESSION_print() print out the verify return
7809 *) Add manpage for the pkcs12 command. Also change the default
7810 behaviour so MAC iteration counts are used unless the new
7811 -nomaciter option is used. This improves file security and
7812 only older versions of MSIE (4.0 for example) need it.
7815 *) Honor the no-xxx Configure options when creating .DEF files.
7818 *) Add PKCS#10 attributes to field table: challengePassword,
7819 unstructuredName and unstructuredAddress. These are taken from
7820 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7821 international characters are used.
7823 More changes to X509_ATTRIBUTE code: allow the setting of types
7824 based on strings. Remove the 'loc' parameter when adding
7825 attributes because these will be a SET OF encoding which is sorted
7829 *) Initial changes to the 'req' utility to allow request generation
7830 automation. This will allow an application to just generate a template
7831 file containing all the field values and have req construct the
7834 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7835 used all over the place including certificate requests and PKCS#7
7836 structures. They are currently handled manually where necessary with
7837 some primitive wrappers for PKCS#7. The new functions behave in a
7838 manner analogous to the X509 extension functions: they allow
7839 attributes to be looked up by NID and added.
7841 Later something similar to the X509V3 code would be desirable to
7842 automatically handle the encoding, decoding and printing of the
7843 more complex types. The string types like challengePassword can
7844 be handled by the string table functions.
7846 Also modified the multi byte string table handling. Now there is
7847 a 'global mask' which masks out certain types. The table itself
7848 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7849 is useful when for example there is only one permissible type
7850 (as in countryName) and using the mask might result in no valid
7854 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7855 SSL_get_peer_finished to allow applications to obtain the latest
7856 Finished messages sent to the peer or expected from the peer,
7857 respectively. (SSL_get_peer_finished is usually the Finished message
7858 actually received from the peer, otherwise the protocol will be aborted.)
7860 As the Finished message are message digests of the complete handshake
7861 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7862 be used for external authentication procedures when the authentication
7863 provided by SSL/TLS is not desired or is not enough.
7866 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7867 the host supports BWX extension and if Compaq C is present on the
7868 $PATH. Just exploiting of the BWX extension results in 20-30%
7869 performance kick for some algorithms, e.g. DES and RC4 to mention
7870 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7874 *) Add support for MS "fast SGC". This is arguably a violation of the
7875 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7876 weak crypto and after checking the certificate is SGC a second one
7877 with strong crypto. MS SGC stops the first handshake after receiving
7878 the server certificate message and sends a second client hello. Since
7879 a server will typically do all the time consuming operations before
7880 expecting any further messages from the client (server key exchange
7881 is the most expensive) there is little difference between the two.
7883 To get OpenSSL to support MS SGC we have to permit a second client
7884 hello message after we have sent server done. In addition we have to
7885 reset the MAC if we do get this second client hello.
7888 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7889 if a DER encoded private key is RSA or DSA traditional format. Changed
7890 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7891 format DER encoded private key. Newer code should use PKCS#8 format which
7892 has the key type encoded in the ASN1 structure. Added DER private key
7893 support to pkcs8 application.
7896 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7897 ciphersuites has been selected (as required by the SSL 3/TLS 1
7898 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7899 is set, we interpret this as a request to violate the specification
7900 (the worst that can happen is a handshake failure, and 'correct'
7901 behaviour would result in a handshake failure anyway).
7904 *) In SSL_CTX_add_session, take into account that there might be multiple
7905 SSL_SESSION structures with the same session ID (e.g. when two threads
7906 concurrently obtain them from an external cache).
7907 The internal cache can handle only one SSL_SESSION with a given ID,
7908 so if there's a conflict, we now throw out the old one to achieve
7912 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7913 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7914 some routines that use cipher OIDs: some ciphers do not have OIDs
7915 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7919 *) Simplify the trust setting structure and code. Now we just have
7920 two sequences of OIDs for trusted and rejected settings. These will
7921 typically have values the same as the extended key usage extension
7922 and any application specific purposes.
7924 The trust checking code now has a default behaviour: it will just
7925 check for an object with the same NID as the passed id. Functions can
7926 be provided to override either the default behaviour or the behaviour
7927 for a given id. SSL client, server and email already have functions
7928 in place for compatibility: they check the NID and also return "trusted"
7929 if the certificate is self signed.
7932 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7933 traditional format into an EVP_PKEY structure.
7936 *) Add a password callback function PEM_cb() which either prompts for
7937 a password if usr_data is NULL or otherwise assumes it is a null
7938 terminated password. Allow passwords to be passed on command line
7939 environment or config files in a few more utilities.
7942 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7943 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7944 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7945 Update documentation.
7948 *) Support for ASN1 "NULL" type. This could be handled before by using
7949 ASN1_TYPE but there wasn't any function that would try to read a NULL
7950 and produce an error if it couldn't. For compatibility we also have
7951 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7952 don't allocate anything because they don't need to.
7955 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7957 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7959 *) Rebuild of the memory allocation routines used by OpenSSL code and
7960 possibly others as well. The purpose is to make an interface that
7961 provide hooks so anyone can build a separate set of allocation and
7962 deallocation routines to be used by OpenSSL, for example memory
7963 pool implementations, or something else, which was previously hard
7964 since Malloc(), Realloc() and Free() were defined as macros having
7965 the values malloc, realloc and free, respectively (except for Win32
7966 compilations). The same is provided for memory debugging code.
7967 OpenSSL already comes with functionality to find memory leaks, but
7968 this gives people a chance to debug other memory problems.
7970 With these changes, a new set of functions and macros have appeared:
7972 CRYPTO_set_mem_debug_functions() [F]
7973 CRYPTO_get_mem_debug_functions() [F]
7974 CRYPTO_dbg_set_options() [F]
7975 CRYPTO_dbg_get_options() [F]
7976 CRYPTO_malloc_debug_init() [M]
7978 The memory debug functions are NULL by default, unless the library
7979 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7980 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7981 gives the standard debugging functions that come with OpenSSL) or
7982 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7983 provided by the library user) must be used. When the standard
7984 debugging functions are used, CRYPTO_dbg_set_options can be used to
7985 request additional information:
7986 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7987 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7989 Also, things like CRYPTO_set_mem_functions will always give the
7990 expected result (the new set of functions is used for allocation
7991 and deallocation) at all times, regardless of platform and compiler
7994 To finish it up, some functions that were never use in any other
7995 way than through macros have a new API and new semantic:
7998 CRYPTO_dbg_realloc()
8001 All macros of value have retained their old syntax.
8002 [Richard Levitte and Bodo Moeller]
8004 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8005 ordering of SMIMECapabilities wasn't in "strength order" and there
8006 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8010 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8011 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8012 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8014 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8015 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8016 functionality to handle multipart/signed properly) and a utility
8017 called 'smime' to call all this stuff. This is based on code I
8018 originally wrote for Celo who have kindly allowed it to be
8019 included in OpenSSL.
8022 *) Add variants des_set_key_checked and des_set_key_unchecked of
8023 des_set_key (aka des_key_sched). Global variable des_check_key
8024 decides which of these is called by des_set_key; this way
8025 des_check_key behaves as it always did, but applications and
8026 the library itself, which was buggy for des_check_key == 1,
8027 have a cleaner way to pick the version they need.
8030 *) New function PKCS12_newpass() which changes the password of a
8034 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8035 dynamic mix. In both cases the ids can be used as an index into the
8036 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8037 functions so they accept a list of the field values and the
8038 application doesn't need to directly manipulate the X509_TRUST
8042 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8046 *) Modify the way the V3 extension code looks up extensions. This now
8047 works in a similar way to the object code: we have some "standard"
8048 extensions in a static table which is searched with OBJ_bsearch()
8049 and the application can add dynamic ones if needed. The file
8050 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8051 updated whenever a new extension is added to the core code and kept
8052 in ext_nid order. There is a simple program 'tabtest.c' which checks
8053 this. New extensions are not added too often so this file can readily
8054 be maintained manually.
8056 There are two big advantages in doing things this way. The extensions
8057 can be looked up immediately and no longer need to be "added" using
8058 X509V3_add_standard_extensions(): this function now does nothing.
8059 [Side note: I get *lots* of email saying the extension code doesn't
8060 work because people forget to call this function]
8061 Also no dynamic allocation is done unless new extensions are added:
8062 so if we don't add custom extensions there is no need to call
8063 X509V3_EXT_cleanup().
8066 *) Modify enc utility's salting as follows: make salting the default. Add a
8067 magic header, so unsalted files fail gracefully instead of just decrypting
8068 to garbage. This is because not salting is a big security hole, so people
8069 should be discouraged from doing it.
8072 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8073 digest to be passed on the command line but it only used this
8074 parameter when signing a certificate. Modified so all relevant
8075 operations are affected by the digest parameter including the
8076 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8077 DSA key was used because it didn't fix the digest.
8080 *) Initial certificate chain verify code. Currently tests the untrusted
8081 certificates for consistency with the verify purpose (which is set
8082 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8084 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8085 this is because it will reject chains with invalid extensions whereas
8086 every previous version of OpenSSL and SSLeay made no checks at all.
8088 Trust code: checks the root CA for the relevant trust settings. Trust
8089 settings have an initial value consistent with the verify purpose: e.g.
8090 if the verify purpose is for SSL client use it expects the CA to be
8091 trusted for SSL client use. However the default value can be changed to
8092 permit custom trust settings: one example of this would be to only trust
8093 certificates from a specific "secure" set of CAs.
8095 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8096 which should be used for version portability: especially since the
8097 verify structure is likely to change more often now.
8099 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8100 to set them. If not set then assume SSL clients will verify SSL servers
8103 Two new options to the verify program: -untrusted allows a set of
8104 untrusted certificates to be passed in and -purpose which sets the
8105 intended purpose of the certificate. If a purpose is set then the
8106 new chain verify code is used to check extension consistency.
8109 *) Support for the authority information access extension.
8112 *) Modify RSA and DSA PEM read routines to transparently handle
8113 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8114 public keys in a format compatible with certificate
8115 SubjectPublicKeyInfo structures. Unfortunately there were already
8116 functions called *_PublicKey_* which used various odd formats so
8117 these are retained for compatibility: however the DSA variants were
8118 never in a public release so they have been deleted. Changed dsa/rsa
8119 utilities to handle the new format: note no releases ever handled public
8120 keys so we should be OK.
8122 The primary motivation for this change is to avoid the same fiasco
8123 that dogs private keys: there are several incompatible private key
8124 formats some of which are standard and some OpenSSL specific and
8125 require various evil hacks to allow partial transparent handling and
8126 even then it doesn't work with DER formats. Given the option anything
8127 other than PKCS#8 should be dumped: but the other formats have to
8128 stay in the name of compatibility.
8130 With public keys and the benefit of hindsight one standard format
8131 is used which works with EVP_PKEY, RSA or DSA structures: though
8132 it clearly returns an error if you try to read the wrong kind of key.
8134 Added a -pubkey option to the 'x509' utility to output the public key.
8135 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8136 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8137 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8138 that do the same as the EVP_PKEY_assign_*() except they up the
8139 reference count of the added key (they don't "swallow" the
8143 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8144 CRLs would fail if the file contained no certificates or no CRLs:
8145 added a new function to read in both types and return the number
8146 read: this means that if none are read it will be an error. The
8147 DER versions of the certificate and CRL reader would always fail
8148 because it isn't possible to mix certificates and CRLs in DER format
8149 without choking one or the other routine. Changed this to just read
8150 a certificate: this is the best we can do. Also modified the code
8151 in apps/verify.c to take notice of return codes: it was previously
8152 attempting to read in certificates from NULL pointers and ignoring
8153 any errors: this is one reason why the cert and CRL reader seemed
8154 to work. It doesn't check return codes from the default certificate
8155 routines: these may well fail if the certificates aren't installed.
8158 *) Code to support otherName option in GeneralName.
8161 *) First update to verify code. Change the verify utility
8162 so it warns if it is passed a self signed certificate:
8163 for consistency with the normal behaviour. X509_verify
8164 has been modified to it will now verify a self signed
8165 certificate if *exactly* the same certificate appears
8166 in the store: it was previously impossible to trust a
8167 single self signed certificate. This means that:
8168 openssl verify ss.pem
8169 now gives a warning about a self signed certificate but
8170 openssl verify -CAfile ss.pem ss.pem
8174 *) For servers, store verify_result in SSL_SESSION data structure
8175 (and add it to external session representation).
8176 This is needed when client certificate verifications fails,
8177 but an application-provided verification callback (set by
8178 SSL_CTX_set_cert_verify_callback) allows accepting the session
8179 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8180 but returns 1): When the session is reused, we have to set
8181 ssl->verify_result to the appropriate error code to avoid
8183 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8185 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8186 case in PKCS7_dataInit() where the signed PKCS7 structure
8187 didn't contain any existing data because it was being created.
8188 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8190 *) Add a salt to the key derivation routines in enc.c. This
8191 forms the first 8 bytes of the encrypted file. Also add a
8192 -S option to allow a salt to be input on the command line.
8195 *) New function X509_cmp(). Oddly enough there wasn't a function
8196 to compare two certificates. We do this by working out the SHA1
8197 hash and comparing that. X509_cmp() will be needed by the trust
8201 *) SSL_get1_session() is like SSL_get_session(), but increments
8202 the reference count in the SSL_SESSION returned.
8203 [Geoff Thorpe <geoff@eu.c2.net>]
8205 *) Fix for 'req': it was adding a null to request attributes.
8206 Also change the X509_LOOKUP and X509_INFO code to handle
8207 certificate auxiliary information.
8210 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8214 *) Add the possibility to add extra information to the memory leak
8215 detecting output, to form tracebacks, showing from where each
8216 allocation was originated: CRYPTO_push_info("constant string") adds
8217 the string plus current file name and line number to a per-thread
8218 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8219 is like calling CYRPTO_pop_info() until the stack is empty.
8220 Also updated memory leak detection code to be multi-thread-safe.
8223 *) Add options -text and -noout to pkcs7 utility and delete the
8224 encryption options which never did anything. Update docs.
8227 *) Add options to some of the utilities to allow the pass phrase
8228 to be included on either the command line (not recommended on
8229 OSes like Unix) or read from the environment. Update the
8230 manpages and fix a few bugs.
8233 *) Add a few manpages for some of the openssl commands.
8236 *) Fix the -revoke option in ca. It was freeing up memory twice,
8237 leaking and not finding already revoked certificates.
8240 *) Extensive changes to support certificate auxiliary information.
8241 This involves the use of X509_CERT_AUX structure and X509_AUX
8242 functions. An X509_AUX function such as PEM_read_X509_AUX()
8243 can still read in a certificate file in the usual way but it
8244 will also read in any additional "auxiliary information". By
8245 doing things this way a fair degree of compatibility can be
8246 retained: existing certificates can have this information added
8247 using the new 'x509' options.
8249 Current auxiliary information includes an "alias" and some trust
8250 settings. The trust settings will ultimately be used in enhanced
8251 certificate chain verification routines: currently a certificate
8252 can only be trusted if it is self signed and then it is trusted
8256 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8257 The problem was that one of the replacement routines had not been working
8258 since SSLeay releases. For now the offending routine has been replaced
8259 with non-optimised assembler. Even so, this now gives around 95%
8260 performance improvement for 1024 bit RSA signs.
8263 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8264 handling. Most clients have the effective key size in bits equal to
8265 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8266 A few however don't do this and instead use the size of the decrypted key
8267 to determine the RC2 key length and the AlgorithmIdentifier to determine
8268 the effective key length. In this case the effective key length can still
8269 be 40 bits but the key length can be 168 bits for example. This is fixed
8270 by manually forcing an RC2 key into the EVP_PKEY structure because the
8271 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8272 the key length and effective key length are equal.
8275 *) Add a bunch of functions that should simplify the creation of
8276 X509_NAME structures. Now you should be able to do:
8277 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8278 and have it automatically work out the correct field type and fill in
8279 the structures. The more adventurous can try:
8280 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8281 and it will (hopefully) work out the correct multibyte encoding.
8284 *) Change the 'req' utility to use the new field handling and multibyte
8285 copy routines. Before the DN field creation was handled in an ad hoc
8286 way in req, ca, and x509 which was rather broken and didn't support
8287 BMPStrings or UTF8Strings. Since some software doesn't implement
8288 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8289 using the dirstring_type option. See the new comment in the default
8290 openssl.cnf for more info.
8293 *) Make crypto/rand/md_rand.c more robust:
8294 - Assure unique random numbers after fork().
8295 - Make sure that concurrent threads access the global counter and
8296 md serializably so that we never lose entropy in them
8297 or use exactly the same state in multiple threads.
8298 Access to the large state is not always serializable because
8299 the additional locking could be a performance killer, and
8300 md should be large enough anyway.
8303 *) New file apps/app_rand.c with commonly needed functionality
8304 for handling the random seed file.
8306 Use the random seed file in some applications that previously did not:
8308 dsaparam -genkey (which also ignored its '-rand' option),
8311 x509 (when signing).
8312 Except on systems with /dev/urandom, it is crucial to have a random
8313 seed file at least for key creation, DSA signing, and for DH exchanges;
8314 for RSA signatures we could do without one.
8316 gendh and gendsa (unlike genrsa) used to read only the first byte
8317 of each file listed in the '-rand' option. The function as previously
8318 found in genrsa is now in app_rand.c and is used by all programs
8319 that support '-rand'.
8322 *) In RAND_write_file, use mode 0600 for creating files;
8323 don't just chmod when it may be too late.
8326 *) Report an error from X509_STORE_load_locations
8327 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8330 *) New function ASN1_mbstring_copy() this copies a string in either
8331 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8332 into an ASN1_STRING type. A mask of permissible types is passed
8333 and it chooses the "minimal" type to use or an error if not type
8337 *) Add function equivalents to the various macros in asn1.h. The old
8338 macros are retained with an M_ prefix. Code inside the library can
8339 use the M_ macros. External code (including the openssl utility)
8340 should *NOT* in order to be "shared library friendly".
8343 *) Add various functions that can check a certificate's extensions
8344 to see if it usable for various purposes such as SSL client,
8345 server or S/MIME and CAs of these types. This is currently
8346 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8347 verification. Also added a -purpose flag to x509 utility to
8348 print out all the purposes.
8351 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8355 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8356 for, obtain and decode and extension and obtain its critical flag.
8357 This allows all the necessary extension code to be handled in a
8358 single function call.
8361 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8362 platforms. See crypto/rc4/rc4_enc.c for further details.
8365 *) New -noout option to asn1parse. This causes no output to be produced
8366 its main use is when combined with -strparse and -out to extract data
8367 from a file (which may not be in ASN.1 format).
8370 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8371 when producing the local key id.
8372 [Richard Levitte <levitte@stacken.kth.se>]
8374 *) New option -dhparam in s_server. This allows a DH parameter file to be
8375 stated explicitly. If it is not stated then it tries the first server
8376 certificate file. The previous behaviour hard coded the filename
8380 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8381 a public key to be input or output. For example:
8382 openssl rsa -in key.pem -pubout -out pubkey.pem
8383 Also added necessary DSA public key functions to handle this.
8386 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8387 in the message. This was handled by allowing
8388 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8389 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8391 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8392 to the end of the strings whereas this didn't. This would cause problems
8393 if strings read with d2i_ASN1_bytes() were later modified.
8394 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8396 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8397 data and it contains EOF it will end up returning an error. This is
8398 caused by input 46 bytes long. The cause is due to the way base64
8399 BIOs find the start of base64 encoded data. They do this by trying a
8400 trial decode on each line until they find one that works. When they
8401 do a flag is set and it starts again knowing it can pass all the
8402 data directly through the decoder. Unfortunately it doesn't reset
8403 the context it uses. This means that if EOF is reached an attempt
8404 is made to pass two EOFs through the context and this causes the
8405 resulting error. This can also cause other problems as well. As is
8406 usual with these problems it takes *ages* to find and the fix is
8407 trivial: move one line.
8408 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8410 *) Ugly workaround to get s_client and s_server working under Windows. The
8411 old code wouldn't work because it needed to select() on sockets and the
8412 tty (for keypresses and to see if data could be written). Win32 only
8413 supports select() on sockets so we select() with a 1s timeout on the
8414 sockets and then see if any characters are waiting to be read, if none
8415 are present then we retry, we also assume we can always write data to
8416 the tty. This isn't nice because the code then blocks until we've
8417 received a complete line of data and it is effectively polling the
8418 keyboard at 1s intervals: however it's quite a bit better than not
8419 working at all :-) A dedicated Windows application might handle this
8420 with an event loop for example.
8423 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8424 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8425 will be called when RSA_sign() and RSA_verify() are used. This is useful
8426 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8427 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8428 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8429 This necessitated the support of an extra signature type NID_md5_sha1
8430 for SSL signatures and modifications to the SSL library to use it instead
8431 of calling RSA_public_decrypt() and RSA_private_encrypt().
8434 *) Add new -verify -CAfile and -CApath options to the crl program, these
8435 will lookup a CRL issuers certificate and verify the signature in a
8436 similar way to the verify program. Tidy up the crl program so it
8437 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8438 less strict. It will now permit CRL extensions even if it is not
8439 a V2 CRL: this will allow it to tolerate some broken CRLs.
8442 *) Initialize all non-automatic variables each time one of the openssl
8443 sub-programs is started (this is necessary as they may be started
8444 multiple times from the "OpenSSL>" prompt).
8445 [Lennart Bang, Bodo Moeller]
8447 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8448 removing all other RSA functionality (this is what NO_RSA does). This
8449 is so (for example) those in the US can disable those operations covered
8450 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8454 *) Non-copying interface to BIO pairs.
8455 (still largely untested)
8458 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8459 ASCII string. This was handled independently in various places before.
8462 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8463 UTF8 strings a character at a time.
8466 *) Use client_version from client hello to select the protocol
8467 (s23_srvr.c) and for RSA client key exchange verification
8468 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8471 *) Add various utility functions to handle SPKACs, these were previously
8472 handled by poking round in the structure internals. Added new function
8473 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8474 print, verify and generate SPKACs. Based on an original idea from
8475 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8478 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8481 *) Allow the config file extension section to be overwritten on the
8482 command line. Based on an original idea from Massimiliano Pala
8483 <madwolf@comune.modena.it>. The new option is called -extensions
8484 and can be applied to ca, req and x509. Also -reqexts to override
8485 the request extensions in req and -crlexts to override the crl extensions
8489 *) Add new feature to the SPKAC handling in ca. Now you can include
8490 the same field multiple times by preceding it by "XXXX." for example:
8493 this is the same syntax as used in the req config file.
8496 *) Allow certificate extensions to be added to certificate requests. These
8497 are specified in a 'req_extensions' option of the req section of the
8498 config file. They can be printed out with the -text option to req but
8499 are otherwise ignored at present.
8502 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8503 data read consists of only the final block it would not decrypted because
8504 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8505 A misplaced 'break' also meant the decrypted final block might not be
8506 copied until the next read.
8509 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8510 a few extra parameters to the DH structure: these will be useful if
8511 for example we want the value of 'q' or implement X9.42 DH.
8514 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8515 provides hooks that allow the default DSA functions or functions on a
8516 "per key" basis to be replaced. This allows hardware acceleration and
8517 hardware key storage to be handled without major modification to the
8518 library. Also added low level modexp hooks and CRYPTO_EX structure and
8519 associated functions.
8522 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8523 as "read only": it can't be written to and the buffer it points to will
8524 not be freed. Reading from a read only BIO is much more efficient than
8525 a normal memory BIO. This was added because there are several times when
8526 an area of memory needs to be read from a BIO. The previous method was
8527 to create a memory BIO and write the data to it, this results in two
8528 copies of the data and an O(n^2) reading algorithm. There is a new
8529 function BIO_new_mem_buf() which creates a read only memory BIO from
8530 an area of memory. Also modified the PKCS#7 routines to use read only
8534 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8535 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8536 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8537 but a retry condition occured while trying to read the rest.
8540 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8541 NID_pkcs7_encrypted by default: this was wrong since this should almost
8542 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8543 the encrypted data type: this is a more sensible place to put it and it
8544 allows the PKCS#12 code to be tidied up that duplicated this
8548 *) Changed obj_dat.pl script so it takes its input and output files on
8549 the command line. This should avoid shell escape redirection problems
8553 *) Initial support for certificate extension requests, these are included
8554 in things like Xenroll certificate requests. Included functions to allow
8555 extensions to be obtained and added.
8558 *) -crlf option to s_client and s_server for sending newlines as
8559 CRLF (as required by many protocols).
8562 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8564 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8565 [Ralf S. Engelschall]
8567 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8568 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8570 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8574 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8575 DH parameters/keys (q is lost during that conversion, but the resulting
8576 DH parameters contain its length).
8578 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8579 much faster than DH_generate_parameters (which creates parameters
8580 where p = 2*q + 1), and also the smaller q makes DH computations
8581 much more efficient (160-bit exponentiation instead of 1024-bit
8582 exponentiation); so this provides a convenient way to support DHE
8583 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8584 utter importance to use
8585 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8587 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8588 when such DH parameters are used, because otherwise small subgroup
8589 attacks may become possible!
8592 *) Avoid memory leak in i2d_DHparams.
8595 *) Allow the -k option to be used more than once in the enc program:
8596 this allows the same encrypted message to be read by multiple recipients.
8599 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8600 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8601 it will always use the numerical form of the OID, even if it has a short
8605 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8606 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8607 otherwise bn_mod_exp was called. In the case of hardware keys for example
8608 no private key components need be present and it might store extra data
8609 in the RSA structure, which cannot be accessed from bn_mod_exp.
8610 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8611 private key operations.
8614 *) Added support for SPARC Linux.
8617 *) pem_password_cb function type incompatibly changed from
8618 typedef int pem_password_cb(char *buf, int size, int rwflag);
8620 ....(char *buf, int size, int rwflag, void *userdata);
8621 so that applications can pass data to their callbacks:
8622 The PEM[_ASN1]_{read,write}... functions and macros now take an
8623 additional void * argument, which is just handed through whenever
8624 the password callback is called.
8625 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8627 New function SSL_CTX_set_default_passwd_cb_userdata.
8629 Compatibility note: As many C implementations push function arguments
8630 onto the stack in reverse order, the new library version is likely to
8631 interoperate with programs that have been compiled with the old
8632 pem_password_cb definition (PEM_whatever takes some data that
8633 happens to be on the stack as its last argument, and the callback
8634 just ignores this garbage); but there is no guarantee whatsoever that
8637 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8638 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8639 problems not only on Windows, but also on some Unix platforms.
8640 To avoid problematic command lines, these definitions are now in an
8641 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8642 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8645 *) MIPS III/IV assembler module is reimplemented.
8648 *) More DES library cleanups: remove references to srand/rand and
8649 delete an unused file.
8652 *) Add support for the the free Netwide assembler (NASM) under Win32,
8653 since not many people have MASM (ml) and it can be hard to obtain.
8654 This is currently experimental but it seems to work OK and pass all
8655 the tests. Check out INSTALL.W32 for info.
8658 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8659 without temporary keys kept an extra copy of the server key,
8660 and connections with temporary keys did not free everything in case
8664 *) New function RSA_check_key and new openssl rsa option -check
8665 for verifying the consistency of RSA keys.
8666 [Ulf Moeller, Bodo Moeller]
8668 *) Various changes to make Win32 compile work:
8669 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8670 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8671 comparison" warnings.
8672 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8675 *) Add a debugging option to PKCS#5 v2 key generation function: when
8676 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8677 derived keys are printed to stderr.
8680 *) Copy the flags in ASN1_STRING_dup().
8681 [Roman E. Pavlov <pre@mo.msk.ru>]
8683 *) The x509 application mishandled signing requests containing DSA
8684 keys when the signing key was also DSA and the parameters didn't match.
8686 It was supposed to omit the parameters when they matched the signing key:
8687 the verifying software was then supposed to automatically use the CA's
8688 parameters if they were absent from the end user certificate.
8690 Omitting parameters is no longer recommended. The test was also
8691 the wrong way round! This was probably due to unusual behaviour in
8692 EVP_cmp_parameters() which returns 1 if the parameters match.
8693 This meant that parameters were omitted when they *didn't* match and
8694 the certificate was useless. Certificates signed with 'ca' didn't have
8696 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8698 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8699 The interface is as follows:
8700 Applications can use
8701 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8702 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8703 "off" is now the default.
8704 The library internally uses
8705 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8706 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8707 to disable memory-checking temporarily.
8709 Some inconsistent states that previously were possible (and were
8710 even the default) are now avoided.
8712 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8713 with each memory chunk allocated; this is occasionally more helpful
8714 than just having a counter.
8716 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8718 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8722 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8723 which largely parallels "options", but is for changing API behaviour,
8724 whereas "options" are about protocol behaviour.
8725 Initial "mode" flags are:
8727 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8728 a single record has been written.
8729 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8730 retries use the same buffer location.
8731 (But all of the contents must be
8735 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8738 *) Fix problems with no-hmac etc.
8739 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8741 *) New functions RSA_get_default_method(), RSA_set_method() and
8742 RSA_get_method(). These allows replacement of RSA_METHODs without having
8743 to mess around with the internals of an RSA structure.
8746 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8747 Also really enable memory leak checks in openssl.c and in some
8749 [Chad C. Mulligan, Bodo Moeller]
8751 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8752 up the length of negative integers. This has now been simplified to just
8753 store the length when it is first determined and use it later, rather
8754 than trying to keep track of where data is copied and updating it to
8756 [Steve Henson, reported by Brien Wheeler
8757 <bwheeler@authentica-security.com>]
8759 *) Add a new function PKCS7_signatureVerify. This allows the verification
8760 of a PKCS#7 signature but with the signing certificate passed to the
8761 function itself. This contrasts with PKCS7_dataVerify which assumes the
8762 certificate is present in the PKCS#7 structure. This isn't always the
8763 case: certificates can be omitted from a PKCS#7 structure and be
8764 distributed by "out of band" means (such as a certificate database).
8767 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8768 function prototypes in pem.h, also change util/mkdef.pl to add the
8769 necessary function names.
8772 *) mk1mf.pl (used by Windows builds) did not properly read the
8773 options set by Configure in the top level Makefile, and Configure
8774 was not even able to write more than one option correctly.
8775 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8778 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8779 file to be loaded from a BIO or FILE pointer. The BIO version will
8780 for example allow memory BIOs to contain config info.
8783 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8784 Whoever hopes to achieve shared-library compatibility across versions
8785 must use this, not the compile-time macro.
8786 (Exercise 0.9.4: Which is the minimum library version required by
8788 Note: All this applies only to multi-threaded programs, others don't
8792 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8793 through a BIO pair triggered the default case, i.e.
8794 SSLerr(...,SSL_R_UNKNOWN_STATE).
8797 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8798 can use the SSL library even if none of the specific BIOs is
8802 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8803 for the encoded length.
8804 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8806 *) Add initial documentation of the X509V3 functions.
8809 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8810 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8811 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8812 secure PKCS#8 private key format with a high iteration count.
8815 *) Fix determination of Perl interpreter: A perl or perl5
8816 _directory_ in $PATH was also accepted as the interpreter.
8817 [Ralf S. Engelschall]
8819 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8820 wrong with it but it was very old and did things like calling
8821 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8825 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8826 to use the new extension code.
8829 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8830 with macros. This should make it easier to change their form, add extra
8831 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8835 *) Add to configuration table a new entry that can specify an alternative
8836 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8837 according to Mark Crispin <MRC@Panda.COM>.
8841 *) DES CBC did not update the IV. Weird.
8844 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8845 Changing the behaviour of the former might break existing programs --
8846 where IV updating is needed, des_ncbc_encrypt can be used.
8849 *) When bntest is run from "make test" it drives bc to check its
8850 calculations, as well as internally checking them. If an internal check
8851 fails, it needs to cause bc to give a non-zero result or make test carries
8852 on without noticing the failure. Fixed.
8855 *) DES library cleanups.
8858 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8859 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8860 ciphers. NOTE: although the key derivation function has been verified
8861 against some published test vectors it has not been extensively tested
8862 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8866 *) Instead of "mkdir -p", which is not fully portable, use new
8867 Perl script "util/mkdir-p.pl".
8870 *) Rewrite the way password based encryption (PBE) is handled. It used to
8871 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8872 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8873 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8874 the 'parameter' field of the AlgorithmIdentifier is passed to the
8875 underlying key generation function so it must do its own ASN1 parsing.
8876 This has also changed the EVP_PBE_CipherInit() function which now has a
8877 'parameter' argument instead of literal salt and iteration count values
8878 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8881 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8882 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8883 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8884 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8885 value was just used as a "magic string" and not used directly its
8886 value doesn't matter.
8889 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8893 *) "linux-sparc64" configuration (ultrapenguin).
8894 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8895 "linux-sparc" configuration.
8896 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8898 *) config now generates no-xxx options for missing ciphers.
8901 *) Support the EBCDIC character set (work in progress).
8902 File ebcdic.c not yet included because it has a different license.
8903 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8905 *) Support BS2000/OSD-POSIX.
8906 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8908 *) Make callbacks for key generation use void * instead of char *.
8911 *) Make S/MIME samples compile (not yet tested).
8914 *) Additional typesafe stacks.
8917 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8921 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8923 *) New configuration variant "sco5-gcc".
8925 *) Updated some demos.
8926 [Sean O Riordain, Wade Scholine]
8928 *) Add missing BIO_free at exit of pkcs12 application.
8931 *) Fix memory leak in conf.c.
8934 *) Updates for Win32 to assembler version of MD5.
8937 *) Set #! path to perl in apps/der_chop to where we found it
8938 instead of using a fixed path.
8941 *) SHA library changes for irix64-mips4-cc.
8944 *) Improvements for VMS support.
8948 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8950 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8951 This also avoids the problems with SC4.2 and unpatched SC5.
8952 [Andy Polyakov <appro@fy.chalmers.se>]
8954 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8955 These are required because of the typesafe stack would otherwise break
8956 existing code. If old code used a structure member which used to be STACK
8957 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8958 sk_num or sk_value it would produce an error because the num, data members
8959 are not present in STACK_OF. Now it just produces a warning. sk_set
8960 replaces the old method of assigning a value to sk_value
8961 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8962 that does this will no longer work (and should use sk_set instead) but
8963 this could be regarded as a "questionable" behaviour anyway.
8966 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8967 correctly handle encrypted S/MIME data.
8970 *) Change type of various DES function arguments from des_cblock
8971 (which means, in function argument declarations, pointer to char)
8972 to des_cblock * (meaning pointer to array with 8 char elements),
8973 which allows the compiler to do more typechecking; it was like
8974 that back in SSLeay, but with lots of ugly casts.
8976 Introduce new type const_des_cblock.
8979 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8980 problems: find RecipientInfo structure that matches recipient certificate
8981 and initialise the ASN1 structures properly based on passed cipher.
8984 *) Belatedly make the BN tests actually check the results.
8987 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8988 to and from BNs: it was completely broken. New compilation option
8989 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8990 key elements as negative integers.
8993 *) Reorganize and speed up MD5.
8994 [Andy Polyakov <appro@fy.chalmers.se>]
8997 [Richard Levitte <richard@levitte.org>]
8999 *) New option -out to asn1parse to allow the parsed structure to be
9000 output to a file. This is most useful when combined with the -strparse
9001 option to examine the output of things like OCTET STRINGS.
9004 *) Make SSL library a little more fool-proof by not requiring any longer
9005 that SSL_set_{accept,connect}_state be called before
9006 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9007 in many applications because usually everything *appeared* to work as
9008 intended anyway -- now it really works as intended).
9011 *) Move openssl.cnf out of lib/.
9014 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9015 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9016 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9017 [Ralf S. Engelschall]
9019 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9020 handle PKCS#7 enveloped data properly.
9021 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9023 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9024 copying pointers. The cert_st handling is changed by this in
9025 various ways (and thus what used to be known as ctx->default_cert
9026 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9027 any longer when s->cert does not give us what we need).
9028 ssl_cert_instantiate becomes obsolete by this change.
9029 As soon as we've got the new code right (possibly it already is?),
9030 we have solved a couple of bugs of the earlier code where s->cert
9031 was used as if it could not have been shared with other SSL structures.
9033 Note that using the SSL API in certain dirty ways now will result
9034 in different behaviour than observed with earlier library versions:
9035 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9036 does not influence s as it used to.
9038 In order to clean up things more thoroughly, inside SSL_SESSION
9039 we don't use CERT any longer, but a new structure SESS_CERT
9040 that holds per-session data (if available); currently, this is
9041 the peer's certificate chain and, for clients, the server's certificate
9042 and temporary key. CERT holds only those values that can have
9043 meaningful defaults in an SSL_CTX.
9046 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9047 from the internal representation. Various PKCS#7 fixes: remove some
9048 evil casts and set the enc_dig_alg field properly based on the signing
9052 *) Allow PKCS#12 password to be set from the command line or the
9053 environment. Let 'ca' get its config file name from the environment
9054 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9058 *) Allow certificate policies extension to use an IA5STRING for the
9059 organization field. This is contrary to the PKIX definition but
9060 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9064 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9065 without disallowing inline assembler and the like for non-pedantic builds.
9068 *) Support Borland C++ builder.
9069 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9074 *) SHA-1 cleanups and performance enhancements.
9075 [Andy Polyakov <appro@fy.chalmers.se>]
9077 *) Sparc v8plus assembler for the bignum library.
9078 [Andy Polyakov <appro@fy.chalmers.se>]
9080 *) Accept any -xxx and +xxx compiler options in Configure.
9083 *) Update HPUX configuration.
9086 *) Add missing sk_<type>_unshift() function to safestack.h
9087 [Ralf S. Engelschall]
9089 *) New function SSL_CTX_use_certificate_chain_file that sets the
9090 "extra_cert"s in addition to the certificate. (This makes sense
9091 only for "PEM" format files, as chains as a whole are not
9095 *) Support verify_depth from the SSL API.
9096 x509_vfy.c had what can be considered an off-by-one-error:
9097 Its depth (which was not part of the external interface)
9098 was actually counting the number of certificates in a chain;
9099 now it really counts the depth.
9102 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9103 instead of X509err, which often resulted in confusing error
9104 messages since the error codes are not globally unique
9105 (e.g. an alleged error in ssl3_accept when a certificate
9106 didn't match the private key).
9108 *) New function SSL_CTX_set_session_id_context that allows to set a default
9109 value (so that you don't need SSL_set_session_id_context for each
9110 connection using the SSL_CTX).
9113 *) OAEP decoding bug fix.
9116 *) Support INSTALL_PREFIX for package builders, as proposed by
9120 *) New Configure options "threads" and "no-threads". For systems
9121 where the proper compiler options are known (currently Solaris
9122 and Linux), "threads" is the default.
9125 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9128 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9129 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9130 such as /usr/local/bin.
9133 *) "make linux-shared" to build shared libraries.
9134 [Niels Poppe <niels@netbox.org>]
9136 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9139 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9140 extension adding in x509 utility.
9143 *) Remove NOPROTO sections and error code comments.
9146 *) Partial rewrite of the DEF file generator to now parse the ANSI
9150 *) New Configure options --prefix=DIR and --openssldir=DIR.
9153 *) Complete rewrite of the error code script(s). It is all now handled
9154 by one script at the top level which handles error code gathering,
9155 header rewriting and C source file generation. It should be much better
9156 than the old method: it now uses a modified version of Ulf's parser to
9157 read the ANSI prototypes in all header files (thus the old K&R definitions
9158 aren't needed for error creation any more) and do a better job of
9159 translating function codes into names. The old 'ASN1 error code imbedded
9160 in a comment' is no longer necessary and it doesn't use .err files which
9161 have now been deleted. Also the error code call doesn't have to appear all
9162 on one line (which resulted in some large lines...).
9165 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9168 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9169 0 (which usually indicates a closed connection), but continue reading.
9172 *) Fix some race conditions.
9175 *) Add support for CRL distribution points extension. Add Certificate
9176 Policies and CRL distribution points documentation.
9179 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9182 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9183 8 of keying material. Merlin has also confirmed interop with this fix
9184 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9185 [Merlin Hughes <merlin@baltimore.ie>]
9187 *) Fix lots of warnings.
9188 [Richard Levitte <levitte@stacken.kth.se>]
9190 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9191 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9192 [Richard Levitte <levitte@stacken.kth.se>]
9194 *) Fix problems with sizeof(long) == 8.
9195 [Andy Polyakov <appro@fy.chalmers.se>]
9197 *) Change functions to ANSI C.
9200 *) Fix typos in error codes.
9201 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9203 *) Remove defunct assembler files from Configure.
9206 *) SPARC v8 assembler BIGNUM implementation.
9207 [Andy Polyakov <appro@fy.chalmers.se>]
9209 *) Support for Certificate Policies extension: both print and set.
9210 Various additions to support the r2i method this uses.
9213 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9214 return a const string when you are expecting an allocated buffer.
9217 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9218 types DirectoryString and DisplayText.
9221 *) Add code to allow r2i extensions to access the configuration database,
9222 add an LHASH database driver and add several ctx helper functions.
9225 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9226 fail when they extended the size of a BIGNUM.
9229 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9230 support typesafe stack.
9233 *) Fix typo in SSL_[gs]et_options().
9234 [Nils Frostberg <nils@medcom.se>]
9236 *) Delete various functions and files that belonged to the (now obsolete)
9237 old X509V3 handling code.
9240 *) New Configure option "rsaref".
9243 *) Don't auto-generate pem.h.
9246 *) Introduce type-safe ASN.1 SETs.
9249 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9250 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9252 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9253 that links with OpenSSL (well at least cause lots of warnings), but fear
9254 not: the conversion is trivial, and it eliminates loads of evil casts. A
9255 few STACKed things have been converted already. Feel free to convert more.
9256 In the fullness of time, I'll do away with the STACK type altogether.
9259 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9260 specified in <certfile> by updating the entry in the index.txt file.
9261 This way one no longer has to edit the index.txt file manually for
9262 revoking a certificate. The -revoke option does the gory details now.
9263 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9265 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9266 `-text' option at all and this way the `-noout -text' combination was
9267 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9268 [Ralf S. Engelschall]
9270 *) Make sure a corresponding plain text error message exists for the
9271 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9272 verify callback function determined that a certificate was revoked.
9273 [Ralf S. Engelschall]
9275 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9276 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9277 all available cipers including rc5, which was forgotten until now.
9278 In order to let the testing shell script know which algorithms
9279 are available, a new (up to now undocumented) command
9280 "openssl list-cipher-commands" is used.
9283 *) Bugfix: s_client occasionally would sleep in select() when
9284 it should have checked SSL_pending() first.
9287 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9288 the raw DSA values prior to ASN.1 encoding.
9291 *) Tweaks to Configure
9292 [Niels Poppe <niels@netbox.org>]
9294 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9298 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9301 *) New config option to avoid instructions that are illegal on the 80386.
9302 The default code is faster, but requires at least a 486.
9305 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9306 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9307 same as SSL2_VERSION anyway.
9310 *) New "-showcerts" option for s_client.
9313 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9314 application. Various cleanups and fixes.
9317 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9318 modify error routines to work internally. Add error codes and PBE init
9319 to library startup routines.
9322 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9323 packing functions to asn1 and evp. Changed function names and error
9324 codes along the way.
9327 *) PKCS12 integration: and so it begins... First of several patches to
9328 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9329 objects to objects.h
9332 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9333 and display support for Thawte strong extranet extension.
9336 *) Add LinuxPPC support.
9337 [Jeff Dubrule <igor@pobox.org>]
9339 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9340 bn_div_words in alpha.s.
9341 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9343 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9344 OAEP isn't supported when OpenSSL is built with RSAref.
9345 [Ulf Moeller <ulf@fitug.de>]
9347 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9348 so they no longer are missing under -DNOPROTO.
9349 [Soren S. Jorvang <soren@t.dk>]
9352 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9354 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9355 doesn't work when the session is reused. Coming soon!
9358 *) Fix a security hole, that allows sessions to be reused in the wrong
9359 context thus bypassing client cert protection! All software that uses
9360 client certs and session caches in multiple contexts NEEDS PATCHING to
9361 allow session reuse! A fuller solution is in the works.
9362 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9364 *) Some more source tree cleanups (removed obsolete files
9365 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9366 permission on "config" script to be executable) and a fix for the INSTALL
9368 [Ulf Moeller <ulf@fitug.de>]
9370 *) Remove some legacy and erroneous uses of malloc, free instead of
9372 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9374 *) Make rsa_oaep_test return non-zero on error.
9375 [Ulf Moeller <ulf@fitug.de>]
9377 *) Add support for native Solaris shared libraries. Configure
9378 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9379 if someone would make that last step automatic.
9380 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9382 *) ctx_size was not built with the right compiler during "make links". Fixed.
9385 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9386 except NULL ciphers". This means the default cipher list will no longer
9387 enable NULL ciphers. They need to be specifically enabled e.g. with
9388 the string "DEFAULT:eNULL".
9391 *) Fix to RSA private encryption routines: if p < q then it would
9392 occasionally produce an invalid result. This will only happen with
9393 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9396 *) Be less restrictive and allow also `perl util/perlpath.pl
9397 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9398 because this way one can also use an interpreter named `perl5' (which is
9399 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9400 installed as `perl').
9401 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9403 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9404 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9406 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9407 advapi32.lib to Win32 build and change the pem test comparision
9408 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9409 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9410 and crypto/des/ede_cbcm_enc.c.
9413 *) DES quad checksum was broken on big-endian architectures. Fixed.
9416 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9417 Win32 test batch file so it (might) work again. The Win32 test batch file
9418 is horrible: I feel ill....
9421 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9422 in e_os.h. Audit of header files to check ANSI and non ANSI
9423 sections: 10 functions were absent from non ANSI section and not exported
9424 from Windows DLLs. Fixed up libeay.num for new functions.
9427 *) Make `openssl version' output lines consistent.
9428 [Ralf S. Engelschall]
9430 *) Fix Win32 symbol export lists for BIO functions: Added
9431 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9432 to ms/libeay{16,32}.def.
9433 [Ralf S. Engelschall]
9435 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9436 fine under Unix and passes some trivial tests I've now added. But the
9437 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9438 added to make sure no one expects that this stuff really works in the
9439 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9440 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9442 [Ralf S. Engelschall]
9444 *) Fix the generation of two part addresses in perl.
9445 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9447 *) Add config entry for Linux on MIPS.
9448 [John Tobey <jtobey@channel1.com>]
9450 *) Make links whenever Configure is run, unless we are on Windoze.
9453 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9454 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9458 *) Add a useful kludge to allow package maintainers to specify compiler and
9459 other platforms details on the command line without having to patch the
9460 Configure script everytime: One now can use ``perl Configure
9461 <id>:<details>'', i.e. platform ids are allowed to have details appended
9462 to them (seperated by colons). This is treated as there would be a static
9463 pre-configured entry in Configure's %table under key <id> with value
9464 <details> and ``perl Configure <id>'' is called. So, when you want to
9465 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9466 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9467 now, which overrides the FreeBSD-elf entry on-the-fly.
9468 [Ralf S. Engelschall]
9470 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9473 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9474 on the `perl Configure ...' command line. This way one can compile
9475 OpenSSL libraries with Position Independent Code (PIC) which is needed
9476 for linking it into DSOs.
9477 [Ralf S. Engelschall]
9479 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9483 *) Cleaned up the LICENSE document: The official contact for any license
9484 questions now is the OpenSSL core team under openssl-core@openssl.org.
9485 And add a paragraph about the dual-license situation to make sure people
9486 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9487 to the OpenSSL toolkit.
9488 [Ralf S. Engelschall]
9490 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9491 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9492 Additonally cleaned up the `make links' target: Remove unnecessary
9493 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9494 to speed processing and no longer clutter the display with confusing
9495 stuff. Instead only the actually done links are displayed.
9496 [Ralf S. Engelschall]
9498 *) Permit null encryption ciphersuites, used for authentication only. It used
9499 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9500 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9504 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9505 signed attributes when verifying signatures (this would break them),
9506 the detached data encoding was wrong and public keys obtained using
9507 X509_get_pubkey() weren't freed.
9510 *) Add text documentation for the BUFFER functions. Also added a work around
9511 to a Win95 console bug. This was triggered by the password read stuff: the
9512 last character typed gets carried over to the next fread(). If you were
9513 generating a new cert request using 'req' for example then the last
9514 character of the passphrase would be CR which would then enter the first
9518 *) Added the new `Includes OpenSSL Cryptography Software' button as
9519 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9520 button and can be used by applications based on OpenSSL to show the
9521 relationship to the OpenSSL project.
9522 [Ralf S. Engelschall]
9524 *) Remove confusing variables in function signatures in files
9525 ssl/ssl_lib.c and ssl/ssl.h.
9526 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9528 *) Don't install bss_file.c under PREFIX/include/
9529 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9531 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9532 functions that return function pointers and has support for NT specific
9533 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9534 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9535 unsigned to signed types: this was killing the Win32 compile.
9538 *) Add new certificate file to stack functions,
9539 SSL_add_dir_cert_subjects_to_stack() and
9540 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9541 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9542 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9543 This means that Apache-SSL and similar packages don't have to mess around
9544 to add as many CAs as they want to the preferred list.
9547 *) Experiment with doxygen documentation. Currently only partially applied to
9549 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9550 openssl.doxy as the configuration file.
9553 *) Get rid of remaining C++-style comments which strict C compilers hate.
9554 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9556 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9557 compiled in by default: it has problems with large keys.
9560 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9561 DH private keys and/or callback functions which directly correspond to
9562 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9563 is needed for applications which have to configure certificates on a
9564 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9566 For the RSA certificate situation is makes no difference, but
9567 for the DSA certificate situation this fixes the "no shared cipher"
9568 problem where the OpenSSL cipher selection procedure failed because the
9569 temporary keys were not overtaken from the context and the API provided
9570 no way to reconfigure them.
9571 The new functions now let applications reconfigure the stuff and they
9572 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9573 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9574 non-public-API function ssl_cert_instantiate() is used as a helper
9575 function and also to reduce code redundancy inside ssl_rsa.c.
9576 [Ralf S. Engelschall]
9578 *) Move s_server -dcert and -dkey options out of the undocumented feature
9579 area because they are useful for the DSA situation and should be
9580 recognized by the users.
9581 [Ralf S. Engelschall]
9583 *) Fix the cipher decision scheme for export ciphers: the export bits are
9584 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9585 SSL_EXP_MASK. So, the original variable has to be used instead of the
9586 already masked variable.
9587 [Richard Levitte <levitte@stacken.kth.se>]
9589 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9590 [Richard Levitte <levitte@stacken.kth.se>]
9592 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9593 from `int' to `unsigned int' because it's a length and initialized by
9594 EVP_DigestFinal() which expects an `unsigned int *'.
9595 [Richard Levitte <levitte@stacken.kth.se>]
9597 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9598 script. Instead use the usual Shell->Perl transition trick.
9599 [Ralf S. Engelschall]
9601 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9602 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9603 -noout -modulus' as it's already the case for `openssl rsa -noout
9604 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9605 currently the public key is printed (a decision which was already done by
9606 `openssl dsa -modulus' in the past) which serves a similar purpose.
9607 Additionally the NO_RSA no longer completely removes the whole -modulus
9608 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9610 [Ralf S. Engelschall]
9612 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9613 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9614 [Arne Ansper <arne@ats.cyber.ee>]
9616 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9617 to be added. Now both 'req' and 'ca' can use new objects defined in the
9621 *) Add cool BIO that does syslog (or event log on NT).
9622 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9624 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9625 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9626 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9627 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9630 *) Add preliminary config info for new extension code.
9633 *) Make RSA_NO_PADDING really use no padding.
9634 [Ulf Moeller <ulf@fitug.de>]
9636 *) Generate errors when private/public key check is done.
9639 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9640 for some CRL extensions and new objects added.
9643 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9644 key usage extension and fuller support for authority key id.
9647 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9648 padding method for RSA, which is recommended for new applications in PKCS
9649 #1 v2.0 (RFC 2437, October 1998).
9650 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9651 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9652 against Bleichbacher's attack on RSA.
9653 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9656 *) Updates to the new SSL compression code
9657 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9659 *) Fix so that the version number in the master secret, when passed
9660 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9661 (because the server will not accept higher), that the version number
9662 is 0x03,0x01, not 0x03,0x00
9663 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9665 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9666 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9667 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9670 *) Support for RAW extensions where an arbitrary extension can be
9671 created by including its DER encoding. See apps/openssl.cnf for
9675 *) Make sure latest Perl versions don't interpret some generated C array
9676 code as Perl array code in the crypto/err/err_genc.pl script.
9677 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9679 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9680 not many people have the assembler. Various Win32 compilation fixes and
9681 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9685 *) Modify configure script 'Configure' to automatically create crypto/date.h
9686 file under Win32 and also build pem.h from pem.org. New script
9687 util/mkfiles.pl to create the MINFO file on environments that can't do a
9688 'make files': perl util/mkfiles.pl >MINFO should work.
9691 *) Major rework of DES function declarations, in the pursuit of correctness
9692 and purity. As a result, many evil casts evaporated, and some weirdness,
9693 too. You may find this causes warnings in your code. Zapping your evil
9694 casts will probably fix them. Mostly.
9697 *) Fix for a typo in asn1.h. Bug fix to object creation script
9698 obj_dat.pl. It considered a zero in an object definition to mean
9699 "end of object": none of the objects in objects.h have any zeros
9700 so it wasn't spotted.
9701 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9703 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9704 Masking (CBCM). In the absence of test vectors, the best I have been able
9705 to do is check that the decrypt undoes the encrypt, so far. Send me test
9706 vectors if you have them.
9709 *) Correct calculation of key length for export ciphers (too much space was
9710 allocated for null ciphers). This has not been tested!
9713 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9714 message is now correct (it understands "crypto" and "ssl" on its
9715 command line). There is also now an "update" option. This will update
9716 the util/ssleay.num and util/libeay.num files with any new functions.
9718 perl util/mkdef.pl crypto ssl update
9719 it will update them.
9722 *) Overhauled the Perl interface (perl/*):
9723 - ported BN stuff to OpenSSL's different BN library
9724 - made the perl/ source tree CVS-aware
9725 - renamed the package from SSLeay to OpenSSL (the files still contain
9726 their history because I've copied them in the repository)
9727 - removed obsolete files (the test scripts will be replaced
9728 by better Test::Harness variants in the future)
9729 [Ralf S. Engelschall]
9731 *) First cut for a very conservative source tree cleanup:
9732 1. merge various obsolete readme texts into doc/ssleay.txt
9733 where we collect the old documents and readme texts.
9734 2. remove the first part of files where I'm already sure that we no
9735 longer need them because of three reasons: either they are just temporary
9736 files which were left by Eric or they are preserved original files where
9737 I've verified that the diff is also available in the CVS via "cvs diff
9738 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9739 the crypto/md/ stuff).
9740 [Ralf S. Engelschall]
9742 *) More extension code. Incomplete support for subject and issuer alt
9743 name, issuer and authority key id. Change the i2v function parameters
9744 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9745 what that's for :-) Fix to ASN1 macro which messed up
9746 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9749 *) Preliminary support for ENUMERATED type. This is largely copied from the
9753 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9754 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9756 *) Make sure `make rehash' target really finds the `openssl' program.
9757 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9759 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9760 like to hear about it if this slows down other processors.
9763 *) Add CygWin32 platform information to Configure script.
9764 [Alan Batie <batie@aahz.jf.intel.com>]
9766 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9767 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9769 *) New program nseq to manipulate netscape certificate sequences
9772 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9776 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9777 but the BN code had some problems that would cause failures when
9778 doing certificate verification and some other functions.
9779 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9781 *) Add ASN1 and PEM code to support netscape certificate sequences.
9784 *) Add ASN1 and PEM code to support netscape certificate sequences.
9787 *) Add several PKIX and private extended key usage OIDs.
9790 *) Modify the 'ca' program to handle the new extension code. Modify
9791 openssl.cnf for new extension format, add comments.
9794 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9795 and add a sample to openssl.cnf so req -x509 now adds appropriate
9799 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9800 error code, add initial support to X509_print() and x509 application.
9803 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9804 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9805 stuff is currently isolated and isn't even compiled yet.
9808 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9809 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9810 Removed the versions check from X509 routines when loading extensions:
9811 this allows certain broken certificates that don't set the version
9812 properly to be processed.
9815 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9816 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9817 can still be regenerated with "make depend".
9820 *) Spelling mistake in C version of CAST-128.
9821 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9823 *) Changes to the error generation code. The perl script err-code.pl
9824 now reads in the old error codes and retains the old numbers, only
9825 adding new ones if necessary. It also only changes the .err files if new
9826 codes are added. The makefiles have been modified to only insert errors
9827 when needed (to avoid needlessly modifying header files). This is done
9828 by only inserting errors if the .err file is newer than the auto generated
9829 C file. To rebuild all the error codes from scratch (the old behaviour)
9830 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9831 or delete all the .err files.
9834 *) CAST-128 was incorrectly implemented for short keys. The C version has
9835 been fixed, but is untested. The assembler versions are also fixed, but
9836 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9837 to regenerate it if needed.
9838 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9839 Hagino <itojun@kame.net>]
9841 *) File was opened incorrectly in randfile.c.
9842 [Ulf Möller <ulf@fitug.de>]
9844 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9845 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9846 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9847 al: it's just almost always a UTCTime. Note this patch adds new error
9848 codes so do a "make errors" if there are problems.
9851 *) Correct Linux 1 recognition in config.
9852 [Ulf Möller <ulf@fitug.de>]
9854 *) Remove pointless MD5 hash when using DSA keys in ca.
9855 [Anonymous <nobody@replay.com>]
9857 *) Generate an error if given an empty string as a cert directory. Also
9858 generate an error if handed NULL (previously returned 0 to indicate an
9859 error, but didn't set one).
9860 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9862 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9865 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9866 parameters. This was causing a warning which killed off the Win32 compile.
9869 *) Remove C++ style comments from crypto/bn/bn_local.h.
9870 [Neil Costigan <neil.costigan@celocom.com>]
9872 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9873 based on a text string, looking up short and long names and finally
9874 "dot" format. The "dot" format stuff didn't work. Added new function
9875 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9876 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9877 OID is not part of the table.
9880 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9881 X509_LOOKUP_by_alias().
9884 *) Sort openssl functions by name.
9887 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9888 encryption from sample DSA keys (in case anyone is interested the password
9892 *) Make _all_ *_free functions accept a NULL pointer.
9893 [Frans Heymans <fheymans@isaserver.be>]
9895 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9897 [Anonymous <nobody@replay.com>]
9899 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9900 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9902 *) Don't blow it for numeric -newkey arguments to apps/req.
9903 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9905 *) Temp key "for export" tests were wrong in s3_srvr.c.
9906 [Anonymous <nobody@replay.com>]
9908 *) Add prototype for temp key callback functions
9909 SSL_CTX_set_tmp_{rsa,dh}_callback().
9912 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9913 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9916 *) X509_name_add_entry() freed the wrong thing after an error.
9917 [Arne Ansper <arne@ats.cyber.ee>]
9919 *) rsa_eay.c would attempt to free a NULL context.
9920 [Arne Ansper <arne@ats.cyber.ee>]
9922 *) BIO_s_socket() had a broken should_retry() on Windoze.
9923 [Arne Ansper <arne@ats.cyber.ee>]
9925 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9926 [Arne Ansper <arne@ats.cyber.ee>]
9928 *) Make sure the already existing X509_STORE->depth variable is initialized
9929 in X509_STORE_new(), but document the fact that this variable is still
9930 unused in the certificate verification process.
9931 [Ralf S. Engelschall]
9933 *) Fix the various library and apps files to free up pkeys obtained from
9934 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9937 *) Fix reference counting in X509_PUBKEY_get(). This makes
9938 demos/maurice/example2.c work, amongst others, probably.
9939 [Steve Henson and Ben Laurie]
9941 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9942 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9943 are no longer created. This way we have a single and consistent command
9944 line interface `openssl <command>', similar to `cvs <command>'.
9945 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9947 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9948 BIT STRING wrapper always have zero unused bits.
9951 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9954 *) Make the top-level INSTALL documentation easier to understand.
9957 *) Makefiles updated to exit if an error occurs in a sub-directory
9958 make (including if user presses ^C) [Paul Sutton]
9960 *) Make Montgomery context stuff explicit in RSA data structure.
9963 *) Fix build order of pem and err to allow for generated pem.h.
9966 *) Fix renumbering bug in X509_NAME_delete_entry().
9969 *) Enhanced the err-ins.pl script so it makes the error library number
9970 global and can add a library name. This is needed for external ASN1 and
9971 other error libraries.
9974 *) Fixed sk_insert which never worked properly.
9977 *) Fix ASN1 macros so they can handle indefinite length construted
9978 EXPLICIT tags. Some non standard certificates use these: they can now
9982 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9983 into a single doc/ssleay.txt bundle. This way the information is still
9984 preserved but no longer messes up this directory. Now it's new room for
9985 the new set of documenation files.
9986 [Ralf S. Engelschall]
9988 *) SETs were incorrectly DER encoded. This was a major pain, because they
9989 shared code with SEQUENCEs, which aren't coded the same. This means that
9990 almost everything to do with SETs or SEQUENCEs has either changed name or
9991 number of arguments.
9992 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9994 *) Fix test data to work with the above.
9997 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9998 was already fixed by Eric for 0.9.1 it seems.
9999 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10001 *) Autodetect FreeBSD3.
10004 *) Fix various bugs in Configure. This affects the following platforms:
10008 unixware-2.0-pentium
10012 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10013 before they are needed.
10016 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10020 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10022 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10023 changed SSLeay to OpenSSL in version strings.
10024 [Ralf S. Engelschall]
10026 *) Some fixups to the top-level documents.
10029 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10030 because the symlink to include/ was missing.
10031 [Ralf S. Engelschall]
10033 *) Incorporated the popular no-RSA/DSA-only patches
10034 which allow to compile a RSA-free SSLeay.
10035 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10037 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10038 when "ssleay" is still not found.
10039 [Ralf S. Engelschall]
10041 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10042 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10044 *) Updated the README file.
10045 [Ralf S. Engelschall]
10047 *) Added various .cvsignore files in the CVS repository subdirs
10048 to make a "cvs update" really silent.
10049 [Ralf S. Engelschall]
10051 *) Recompiled the error-definition header files and added
10052 missing symbols to the Win32 linker tables.
10053 [Ralf S. Engelschall]
10055 *) Cleaned up the top-level documents;
10056 o new files: CHANGES and LICENSE
10057 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10058 o merged COPYRIGHT into LICENSE
10059 o removed obsolete TODO file
10060 o renamed MICROSOFT to INSTALL.W32
10061 [Ralf S. Engelschall]
10063 *) Removed dummy files from the 0.9.1b source tree:
10064 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10065 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10066 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10067 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10068 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10069 [Ralf S. Engelschall]
10071 *) Added various platform portability fixes.
10074 *) The Genesis of the OpenSSL rpject:
10075 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10076 Young and Tim J. Hudson created while they were working for C2Net until
10078 [The OpenSSL Project]
10081 Changes between 0.9.0b and 0.9.1b [not released]
10083 *) Updated a few CA certificates under certs/
10086 *) Changed some BIGNUM api stuff.
10089 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10090 DGUX x86, Linux Alpha, etc.
10093 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10094 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10098 *) Add -strparse option to asn1pars program which parses nested
10100 [Dr Stephen Henson <shenson@bigfoot.com>]
10102 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10105 *) DSA fix for "ca" program.
10108 *) Added "-genkey" option to "dsaparam" program.
10111 *) Added RIPE MD160 (rmd160) message digest.
10114 *) Added -a (all) option to "ssleay version" command.
10117 *) Added PLATFORM define which is the id given to Configure.
10120 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10123 *) Extended the ASN.1 parser routines.
10126 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10129 *) Added a BN_CTX to the BN library.
10132 *) Fixed the weak key values in DES library
10135 *) Changed API in EVP library for cipher aliases.
10138 *) Added support for RC2/64bit cipher.
10141 *) Converted the lhash library to the crypto/mem.c functions.
10144 *) Added more recognized ASN.1 object ids.
10147 *) Added more RSA padding checks for SSL/TLS.
10150 *) Added BIO proxy/filter functionality.
10153 *) Added extra_certs to SSL_CTX which can be used
10154 send extra CA certificates to the client in the CA cert chain sending
10155 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10158 *) Now Fortezza is denied in the authentication phase because
10159 this is key exchange mechanism is not supported by SSLeay at all.
10162 *) Additional PKCS1 checks.
10165 *) Support the string "TLSv1" for all TLS v1 ciphers.
10168 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10169 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10172 *) Fixed a few memory leaks.
10175 *) Fixed various code and comment typos.
10178 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10179 bytes sent in the client random.
10180 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob