5 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
7 *) Don't use TLS 1.0 record version number in initial client hello
11 Changes between 1.0.1b and 1.0.1c [10 May 2012]
13 *) Sanity check record length before skipping explicit IV in TLS
14 1.2, 1.1 and DTLS to fix DoS attack.
16 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
17 fuzzing as a service testing platform.
21 *) Initialise tkeylen properly when encrypting CMS messages.
22 Thanks to Solar Designer of Openwall for reporting this issue.
25 *) In FIPS mode don't try to use composite ciphers as they are not
29 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
31 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
32 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
33 mean any application compiled against OpenSSL 1.0.0 headers setting
34 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
35 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
36 0x10000000L Any application which was previously compiled against
37 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
38 will need to be recompiled as a result. Letting be results in
39 inability to disable specifically TLS 1.1 and in client context,
40 in unlike event, limit maximum offered version to TLS 1.0 [see below].
43 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
44 disable just protocol X, but all protocols above X *if* there are
45 protocols *below* X still enabled. In more practical terms it means
46 that if application wants to disable TLS1.0 in favor of TLS1.1 and
47 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
48 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
52 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
54 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
55 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
56 in CRYPTO_realloc_clean.
58 Thanks to Tavis Ormandy, Google Security Team, for discovering this
59 issue and to Adam Langley <agl@chromium.org> for fixing it.
61 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
63 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
66 *) Workarounds for some broken servers that "hang" if a client hello
67 record length exceeds 255 bytes.
69 1. Do not use record version number > TLS 1.0 in initial client
70 hello: some (but not all) hanging servers will now work.
71 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
72 the number of ciphers sent in the client hello. This should be
73 set to an even number, such as 50, for example by passing:
74 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
75 Most broken servers should now work.
76 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
77 TLS 1.2 client support entirely.
80 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
83 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
85 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
86 STRING form instead of a DigestInfo.
89 *) The format used for MDC2 RSA signatures is inconsistent between EVP
90 and the RSA_sign/RSA_verify functions. This was made more apparent when
91 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
92 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
93 the correct format in RSA_verify so both forms transparently work.
96 *) Some servers which support TLS 1.0 can choke if we initially indicate
97 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
98 encrypted premaster secret. As a workaround use the maximum pemitted
99 client version in client hello, this should keep such servers happy
100 and still work with previous versions of OpenSSL.
103 *) Add support for TLS/DTLS heartbeats.
104 [Robin Seggelmann <seggelmann@fh-muenster.de>]
106 *) Add support for SCTP.
107 [Robin Seggelmann <seggelmann@fh-muenster.de>]
109 *) Improved PRNG seeding for VOS.
110 [Paul Green <Paul.Green@stratus.com>]
112 *) Extensive assembler packs updates, most notably:
114 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
115 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
116 - x86_64: bit-sliced AES implementation;
117 - ARM: NEON support, contemporary platforms optimizations;
118 - s390x: z196 support;
119 - *: GHASH and GF(2^m) multiplication implementations;
123 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
124 (removal of unnecessary code)
125 [Peter Sylvester <peter.sylvester@edelweb.fr>]
127 *) Add TLS key material exporter from RFC 5705.
130 *) Add DTLS-SRTP negotiation from RFC 5764.
133 *) Add Next Protocol Negotiation,
134 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
135 disabled with a no-npn flag to config or Configure. Code donated
137 [Adam Langley <agl@google.com> and Ben Laurie]
139 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
140 NIST-P256, NIST-P521, with constant-time single point multiplication on
141 typical inputs. Compiler support for the nonstandard type __uint128_t is
142 required to use this (present in gcc 4.4 and later, for 64-bit builds).
143 Code made available under Apache License version 2.0.
145 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
146 line to include this in your build of OpenSSL, and run "make depend" (or
147 "make update"). This enables the following EC_METHODs:
149 EC_GFp_nistp224_method()
150 EC_GFp_nistp256_method()
151 EC_GFp_nistp521_method()
153 EC_GROUP_new_by_curve_name() will automatically use these (while
154 EC_GROUP_new_curve_GFp() currently prefers the more flexible
156 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
158 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
159 all platforms. Move ssize_t definition from e_os.h to the public
160 header file e_os2.h as it now appears in public header file cms.h
163 *) New -sigopt option to the ca, req and x509 utilities. Additional
164 signature parameters can be passed using this option and in
168 *) Add RSA PSS signing function. This will generate and set the
169 appropriate AlgorithmIdentifiers for PSS based on those in the
170 corresponding EVP_MD_CTX structure. No application support yet.
173 *) Support for companion algorithm specific ASN1 signing routines.
174 New function ASN1_item_sign_ctx() signs a pre-initialised
175 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
176 the appropriate parameters.
179 *) Add new algorithm specific ASN1 verification initialisation function
180 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
181 handling will be the same no matter what EVP_PKEY_METHOD is used.
182 Add a PSS handler to support verification of PSS signatures: checked
183 against a number of sample certificates.
186 *) Add signature printing for PSS. Add PSS OIDs.
187 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
189 *) Add algorithm specific signature printing. An individual ASN1 method
190 can now print out signatures instead of the standard hex dump.
192 More complex signatures (e.g. PSS) can print out more meaningful
193 information. Include DSA version that prints out the signature
197 *) Password based recipient info support for CMS library: implementing
201 *) Split password based encryption into PBES2 and PBKDF2 functions. This
202 neatly separates the code into cipher and PBE sections and is required
203 for some algorithms that split PBES2 into separate pieces (such as
207 *) Session-handling fixes:
208 - Fix handling of connections that are resuming with a session ID,
209 but also support Session Tickets.
210 - Fix a bug that suppressed issuing of a new ticket if the client
211 presented a ticket with an expired session.
212 - Try to set the ticket lifetime hint to something reasonable.
213 - Make tickets shorter by excluding irrelevant information.
214 - On the client side, don't ignore renewed tickets.
215 [Adam Langley, Bodo Moeller (Google)]
217 *) Fix PSK session representation.
220 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
222 This work was sponsored by Intel.
225 *) Add GCM support to TLS library. Some custom code is needed to split
226 the IV between the fixed (from PRF) and explicit (from TLS record)
227 portions. This adds all GCM ciphersuites supported by RFC5288 and
228 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
229 add a special AESGCM string for GCM only.
232 *) Expand range of ctrls for AES GCM. Permit setting invocation
233 field on decrypt and retrieval of invocation field only on encrypt.
236 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
237 As required by RFC5289 these ciphersuites cannot be used if for
238 versions of TLS earlier than 1.2.
241 *) For FIPS capable OpenSSL interpret a NULL default public key method
242 as unset and return the appopriate default but do *not* set the default.
243 This means we can return the appopriate method in applications that
244 swicth between FIPS and non-FIPS modes.
247 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
248 ENGINE is used then we cannot handle that in the FIPS module so we
249 keep original code iff non-FIPS operations are allowed.
252 *) Add -attime option to openssl utilities.
253 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
255 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
258 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
259 FIPS EC methods unconditionally for now.
262 *) New build option no-ec2m to disable characteristic 2 code.
265 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
266 all cases can be covered as some introduce binary incompatibilities.
269 *) Redirect RSA operations to FIPS module including keygen,
270 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
273 *) Add similar low level API blocking to ciphers.
276 *) Low level digest APIs are not approved in FIPS mode: any attempt
277 to use these will cause a fatal error. Applications that *really* want
278 to use them can use the private_* version instead.
281 *) Redirect cipher operations to FIPS module for FIPS builds.
284 *) Redirect digest operations to FIPS module for FIPS builds.
287 *) Update build system to add "fips" flag which will link in fipscanister.o
288 for static and shared library builds embedding a signature if needed.
291 *) Output TLS supported curves in preference order instead of numerical
292 order. This is currently hardcoded for the highest order curves first.
293 This should be configurable so applications can judge speed vs strength.
296 *) Add TLS v1.2 server support for client authentication.
299 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
303 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
304 FIPS modules versions.
307 *) Add TLS v1.2 client side support for client authentication. Keep cache
308 of handshake records longer as we don't know the hash algorithm to use
309 until after the certificate request message is received.
312 *) Initial TLS v1.2 client support. Add a default signature algorithms
313 extension including all the algorithms we support. Parse new signature
314 format in client key exchange. Relax some ECC signing restrictions for
315 TLS v1.2 as indicated in RFC5246.
318 *) Add server support for TLS v1.2 signature algorithms extension. Switch
319 to new signature format when needed using client digest preference.
320 All server ciphersuites should now work correctly in TLS v1.2. No client
321 support yet and no support for client certificates.
324 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
325 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
326 ciphersuites. At present only RSA key exchange ciphersuites work with
327 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
328 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
329 and version checking.
332 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
333 with this defined it will not be affected by any changes to ssl internal
334 structures. Add several utility functions to allow openssl application
335 to work with OPENSSL_NO_SSL_INTERN defined.
339 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
341 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
344 *) Permit abbreviated handshakes when renegotiating using the function
345 SSL_renegotiate_abbreviated().
346 [Robin Seggelmann <seggelmann@fh-muenster.de>]
348 *) Add call to ENGINE_register_all_complete() to
349 ENGINE_load_builtin_engines(), so some implementations get used
350 automatically instead of needing explicit application support.
353 *) Add support for TLS key exporter as described in RFC5705.
354 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
356 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
357 a few changes are required:
359 Add SSL_OP_NO_TLSv1_1 flag.
361 Update version checking logic to handle version 1.1.
362 Add explicit IV handling (ported from DTLS code).
363 Add command line options to s_client/s_server.
366 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
368 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
369 in CMS and PKCS7 code. When RSA decryption fails use a random key for
370 content decryption and always return the same error. Note: this attack
371 needs on average 2^20 messages so it only affects automated senders. The
372 old behaviour can be reenabled in the CMS code by setting the
373 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
374 an MMA defence is not necessary.
375 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
376 this issue. (CVE-2012-0884)
379 *) Fix CVE-2011-4619: make sure we really are receiving a
380 client hello before rejecting multiple SGC restarts. Thanks to
381 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
384 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
386 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
387 Thanks to Antonio Martin, Enterprise Secure Access Research and
388 Development, Cisco Systems, Inc. for discovering this bug and
389 preparing a fix. (CVE-2012-0050)
392 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
394 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
395 of the Vaudenay padding oracle attack on CBC mode encryption
396 which enables an efficient plaintext recovery attack against
397 the OpenSSL implementation of DTLS. Their attack exploits timing
398 differences arising during decryption processing. A research
399 paper describing this attack can be found at:
400 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
401 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
402 Security Group at Royal Holloway, University of London
403 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
404 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
405 for preparing the fix. (CVE-2011-4108)
406 [Robin Seggelmann, Michael Tuexen]
408 *) Clear bytes used for block padding of SSL 3.0 records.
410 [Adam Langley (Google)]
412 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
413 Kadianakis <desnacked@gmail.com> for discovering this issue and
414 Adam Langley for preparing the fix. (CVE-2011-4619)
415 [Adam Langley (Google)]
417 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
418 [Andrey Kulikov <amdeich@gmail.com>]
420 *) Prevent malformed RFC3779 data triggering an assertion failure.
421 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
422 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
423 [Rob Austein <sra@hactrn.net>]
425 *) Improved PRNG seeding for VOS.
426 [Paul Green <Paul.Green@stratus.com>]
428 *) Fix ssl_ciph.c set-up race.
429 [Adam Langley (Google)]
431 *) Fix spurious failures in ecdsatest.c.
432 [Emilia Käsper (Google)]
434 *) Fix the BIO_f_buffer() implementation (which was mixing different
435 interpretations of the '..._len' fields).
436 [Adam Langley (Google)]
438 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
439 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
440 threads won't reuse the same blinding coefficients.
442 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
443 lock to call BN_BLINDING_invert_ex, and avoids one use of
444 BN_BLINDING_update for each BN_BLINDING structure (previously,
445 the last update always remained unused).
446 [Emilia Käsper (Google)]
448 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
449 [Bob Buckholz (Google)]
451 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
453 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
454 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
455 [Kaspar Brand <ossl@velox.ch>]
457 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
458 for multi-threaded use of ECDH. (CVE-2011-3210)
459 [Adam Langley (Google)]
461 *) Fix x509_name_ex_d2i memory leak on bad inputs.
464 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
465 signature public key algorithm by using OID xref utilities instead.
466 Before this you could only use some ECC ciphersuites with SHA1 only.
469 *) Add protection against ECDSA timing attacks as mentioned in the paper
470 by Billy Bob Brumley and Nicola Tuveri, see:
472 http://eprint.iacr.org/2011/232.pdf
474 [Billy Bob Brumley and Nicola Tuveri]
476 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
478 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
479 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
481 *) Fix bug in string printing code: if *any* escaping is enabled we must
482 escape the escape character (backslash) or the resulting string is
486 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
488 *) Disable code workaround for ancient and obsolete Netscape browsers
489 and servers: an attacker can use it in a ciphersuite downgrade attack.
490 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
493 *) Fixed J-PAKE implementation error, originally discovered by
494 Sebastien Martini, further info and confirmation from Stefan
495 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
498 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
500 *) Fix extension code to avoid race conditions which can result in a buffer
501 overrun vulnerability: resumed sessions must not be modified as they can
502 be shared by multiple threads. CVE-2010-3864
505 *) Fix WIN32 build system to correctly link an ENGINE directory into
509 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
511 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
513 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
515 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
517 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
518 context. The operation can be customised via the ctrl mechanism in
519 case ENGINEs want to include additional functionality.
522 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
525 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
526 output hashes compatible with older versions of OpenSSL.
527 [Willy Weisz <weisz@vcpc.univie.ac.at>]
529 *) Fix compression algorithm handling: if resuming a session use the
530 compression algorithm of the resumed session instead of determining
531 it from client hello again. Don't allow server to change algorithm.
534 *) Add load_crls() function to apps tidying load_certs() too. Add option
535 to verify utility to allow additional CRLs to be included.
538 *) Update OCSP request code to permit adding custom headers to the request:
539 some responders need this.
542 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
544 [Julia Lawall <julia@diku.dk>]
546 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
547 needlessly dereferenced structures, used obsolete functions and
548 didn't handle all updated verify codes correctly.
551 *) Disable MD2 in the default configuration.
554 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
555 indicate the initial BIO being pushed or popped. This makes it possible
556 to determine whether the BIO is the one explicitly called or as a result
557 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
558 it handles reference counts correctly and doesn't zero out the I/O bio
559 when it is not being explicitly popped. WARNING: applications which
560 included workarounds for the old buggy behaviour will need to be modified
561 or they could free up already freed BIOs.
564 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
565 renaming to all platforms (within the 0.9.8 branch, this was
566 done conditionally on Netware platforms to avoid a name clash).
567 [Guenter <lists@gknw.net>]
569 *) Add ECDHE and PSK support to DTLS.
570 [Michael Tuexen <tuexen@fh-muenster.de>]
572 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
576 *) Add "missing" function EVP_MD_flags() (without this the only way to
577 retrieve a digest flags is by accessing the structure directly. Update
578 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
579 or cipher is registered as in the "from" argument. Print out all
580 registered digests in the dgst usage message instead of manually
581 attempting to work them out.
584 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
585 this allows the use of compression and extensions. Change default cipher
586 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
587 by default unless an application cipher string requests it.
590 *) Alter match criteria in PKCS12_parse(). It used to try to use local
591 key ids to find matching certificates and keys but some PKCS#12 files
592 don't follow the (somewhat unwritten) rules and this strategy fails.
593 Now just gather all certificates together and the first private key
594 then look for the first certificate that matches the key.
597 *) Support use of registered digest and cipher names for dgst and cipher
598 commands instead of having to add each one as a special case. So now
605 openssl dgst -sha256 foo
607 and this works for ENGINE based algorithms too.
611 *) Update Gost ENGINE to support parameter files.
612 [Victor B. Wagner <vitus@cryptocom.ru>]
614 *) Support GeneralizedTime in ca utility.
615 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
617 *) Enhance the hash format used for certificate directory links. The new
618 form uses the canonical encoding (meaning equivalent names will work
619 even if they aren't identical) and uses SHA1 instead of MD5. This form
620 is incompatible with the older format and as a result c_rehash should
621 be used to rebuild symbolic links.
624 *) Make PKCS#8 the default write format for private keys, replacing the
625 traditional format. This form is standardised, more secure and doesn't
626 include an implicit MD5 dependency.
629 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
630 committed to OpenSSL should pass this lot as a minimum.
633 *) Add session ticket override functionality for use by EAP-FAST.
634 [Jouni Malinen <j@w1.fi>]
636 *) Modify HMAC functions to return a value. Since these can be implemented
637 in an ENGINE errors can occur.
640 *) Type-checked OBJ_bsearch_ex.
643 *) Type-checked OBJ_bsearch. Also some constification necessitated
644 by type-checking. Still to come: TXT_DB, bsearch(?),
645 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
649 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
650 seconds to a tm structure directly, instead of going through OS
651 specific date routines. This avoids any issues with OS routines such
652 as the year 2038 bug. New *_adj() functions for ASN1 time structures
653 and X509_time_adj_ex() to cover the extended range. The existing
654 X509_time_adj() is still usable and will no longer have any date issues.
657 *) Delta CRL support. New use deltas option which will attempt to locate
658 and search any appropriate delta CRLs available.
660 This work was sponsored by Google.
663 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
664 code and add additional score elements. Validate alternate CRL paths
665 as part of the CRL checking and indicate a new error "CRL path validation
666 error" in this case. Applications wanting additional details can use
667 the verify callback and check the new "parent" field. If this is not
668 NULL CRL path validation is taking place. Existing applications wont
669 see this because it requires extended CRL support which is off by
672 This work was sponsored by Google.
675 *) Support for freshest CRL extension.
677 This work was sponsored by Google.
680 *) Initial indirect CRL support. Currently only supported in the CRLs
681 passed directly and not via lookup. Process certificate issuer
682 CRL entry extension and lookup CRL entries by bother issuer name
683 and serial number. Check and process CRL issuer entry in IDP extension.
685 This work was sponsored by Google.
688 *) Add support for distinct certificate and CRL paths. The CRL issuer
689 certificate is validated separately in this case. Only enabled if
690 an extended CRL support flag is set: this flag will enable additional
691 CRL functionality in future.
693 This work was sponsored by Google.
696 *) Add support for policy mappings extension.
698 This work was sponsored by Google.
701 *) Fixes to pathlength constraint, self issued certificate handling,
702 policy processing to align with RFC3280 and PKITS tests.
704 This work was sponsored by Google.
707 *) Support for name constraints certificate extension. DN, email, DNS
708 and URI types are currently supported.
710 This work was sponsored by Google.
713 *) To cater for systems that provide a pointer-based thread ID rather
714 than numeric, deprecate the current numeric thread ID mechanism and
715 replace it with a structure and associated callback type. This
716 mechanism allows a numeric "hash" to be extracted from a thread ID in
717 either case, and on platforms where pointers are larger than 'long',
718 mixing is done to help ensure the numeric 'hash' is usable even if it
719 can't be guaranteed unique. The default mechanism is to use "&errno"
720 as a pointer-based thread ID to distinguish between threads.
722 Applications that want to provide their own thread IDs should now use
723 CRYPTO_THREADID_set_callback() to register a callback that will call
724 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
726 Note that ERR_remove_state() is now deprecated, because it is tied
727 to the assumption that thread IDs are numeric. ERR_remove_state(0)
728 to free the current thread's error state should be replaced by
729 ERR_remove_thread_state(NULL).
731 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
732 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
733 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
734 application was previously providing a numeric thread callback that
735 was inappropriate for distinguishing threads, then uniqueness might
736 have been obtained with &errno that happened immediately in the
737 intermediate development versions of OpenSSL; this is no longer the
738 case, the numeric thread callback will now override the automatic use
740 [Geoff Thorpe, with help from Bodo Moeller]
742 *) Initial support for different CRL issuing certificates. This covers a
743 simple case where the self issued certificates in the chain exist and
744 the real CRL issuer is higher in the existing chain.
746 This work was sponsored by Google.
749 *) Removed effectively defunct crypto/store from the build.
752 *) Revamp of STACK to provide stronger type-checking. Still to come:
753 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
754 ASN1_STRING, CONF_VALUE.
757 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
758 RAM on SSL connections. This option can save about 34k per idle SSL.
761 *) Revamp of LHASH to provide stronger type-checking. Still to come:
762 STACK, TXT_DB, bsearch, qsort.
765 *) Initial support for Cryptographic Message Syntax (aka CMS) based
766 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
767 support for data, signedData, compressedData, digestedData and
768 encryptedData, envelopedData types included. Scripts to check against
769 RFC4134 examples draft and interop and consistency checks of many
770 content types and variants.
773 *) Add options to enc utility to support use of zlib compression BIO.
776 *) Extend mk1mf to support importing of options and assembly language
777 files from Configure script, currently only included in VC-WIN32.
778 The assembly language rules can now optionally generate the source
779 files from the associated perl scripts.
782 *) Implement remaining functionality needed to support GOST ciphersuites.
783 Interop testing has been performed using CryptoPro implementations.
784 [Victor B. Wagner <vitus@cryptocom.ru>]
786 *) s390x assembler pack.
789 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
793 *) Implement Opaque PRF Input TLS extension as specified in
794 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
795 official specification yet and no extension type assignment by
796 IANA exists, this extension (for now) will have to be explicitly
797 enabled when building OpenSSL by providing the extension number
798 to use. For example, specify an option
800 -DTLSEXT_TYPE_opaque_prf_input=0x9527
802 to the "config" or "Configure" script to enable the extension,
803 assuming extension number 0x9527 (which is a completely arbitrary
804 and unofficial assignment based on the MD5 hash of the Internet
805 Draft). Note that by doing so, you potentially lose
806 interoperability with other TLS implementations since these might
807 be using the same extension number for other purposes.
809 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
810 opaque PRF input value to use in the handshake. This will create
811 an interal copy of the length-'len' string at 'src', and will
812 return non-zero for success.
814 To get more control and flexibility, provide a callback function
817 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
818 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
822 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
825 Callback function 'cb' will be called in handshakes, and is
826 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
827 Argument 'arg' is for application purposes (the value as given to
828 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
829 be provided to the callback function). The callback function
830 has to return non-zero to report success: usually 1 to use opaque
831 PRF input just if possible, or 2 to enforce use of the opaque PRF
832 input. In the latter case, the library will abort the handshake
833 if opaque PRF input is not successfully negotiated.
835 Arguments 'peerinput' and 'len' given to the callback function
836 will always be NULL and 0 in the case of a client. A server will
837 see the client's opaque PRF input through these variables if
838 available (NULL and 0 otherwise). Note that if the server
839 provides an opaque PRF input, the length must be the same as the
840 length of the client's opaque PRF input.
842 Note that the callback function will only be called when creating
843 a new session (session resumption can resume whatever was
844 previously negotiated), and will not be called in SSL 2.0
845 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
846 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
847 for applications that need to enforce opaque PRF input.
851 *) Update ssl code to support digests other than SHA1+MD5 for handshake
854 [Victor B. Wagner <vitus@cryptocom.ru>]
856 *) Add RFC4507 support to OpenSSL. This includes the corrections in
857 RFC4507bis. The encrypted ticket format is an encrypted encoded
858 SSL_SESSION structure, that way new session features are automatically
861 If a client application caches session in an SSL_SESSION structure
862 support is transparent because tickets are now stored in the encoded
865 The SSL_CTX structure automatically generates keys for ticket
866 protection in servers so again support should be possible
867 with no application modification.
869 If a client or server wishes to disable RFC4507 support then the option
870 SSL_OP_NO_TICKET can be set.
872 Add a TLS extension debugging callback to allow the contents of any client
873 or server extensions to be examined.
875 This work was sponsored by Google.
878 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
879 OpenSSL should now compile cleanly on gcc 4.2
880 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
882 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
883 support including streaming MAC support: this is required for GOST
885 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
887 *) Add option -stream to use PKCS#7 streaming in smime utility. New
888 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
889 to output in BER and PEM format.
892 *) Experimental support for use of HMAC via EVP_PKEY interface. This
893 allows HMAC to be handled via the EVP_DigestSign*() interface. The
894 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
895 ENGINE support for HMAC keys which are unextractable. New -mac and
896 -macopt options to dgst utility.
899 *) New option -sigopt to dgst utility. Update dgst to use
900 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
901 alternative signing paramaters such as X9.31 or PSS in the dgst
905 *) Change ssl_cipher_apply_rule(), the internal function that does
906 the work each time a ciphersuite string requests enabling
907 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
908 removing ("!foo+bar") a class of ciphersuites: Now it maintains
909 the order of disabled ciphersuites such that those ciphersuites
910 that most recently went from enabled to disabled not only stay
911 in order with respect to each other, but also have higher priority
912 than other disabled ciphersuites the next time ciphersuites are
915 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
916 the same ciphersuites as with "HIGH" alone, but in a specific
917 order where the PSK ciphersuites come first (since they are the
918 most recently disabled ciphersuites when "HIGH" is parsed).
920 Also, change ssl_create_cipher_list() (using this new
921 funcionality) such that between otherwise identical
922 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
926 *) Change ssl_create_cipher_list() so that it automatically
927 arranges the ciphersuites in reasonable order before starting
928 to process the rule string. Thus, the definition for "DEFAULT"
929 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
930 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
931 This makes it much easier to arrive at a reasonable default order
932 in applications for which anonymous ciphers are OK (meaning
933 that you can't actually use DEFAULT).
934 [Bodo Moeller; suggested by Victor Duchovni]
936 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
937 processing) into multiple integers instead of setting
938 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
939 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
940 (These masks as well as the individual bit definitions are hidden
941 away into the non-exported interface ssl/ssl_locl.h, so this
942 change to the definition of the SSL_CIPHER structure shouldn't
943 affect applications.) This give us more bits for each of these
944 categories, so there is no longer a need to coagulate AES128 and
945 AES256 into a single algorithm bit, and to coagulate Camellia128
946 and Camellia256 into a single algorithm bit, which has led to all
949 Thus, among other things, the kludge introduced in 0.9.7m and
950 0.9.8e for masking out AES256 independently of AES128 or masking
951 out Camellia256 independently of AES256 is not needed here in 0.9.9.
953 With the change, we also introduce new ciphersuite aliases that
954 so far were missing: "AES128", "AES256", "CAMELLIA128", and
958 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
959 Use the leftmost N bytes of the signature input if the input is
960 larger than the prime q (with N being the size in bytes of q).
963 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
964 it yet and it is largely untested.
967 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
970 *) Initial incomplete changes to avoid need for function casts in OpenSSL
971 some compilers (gcc 4.2 and later) reject their use. Safestack is
972 reimplemented. Update ASN1 to avoid use of legacy functions.
975 *) Win32/64 targets are linked with Winsock2.
978 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
979 to external functions. This can be used to increase CRL handling
980 efficiency especially when CRLs are very large by (for example) storing
981 the CRL revoked certificates in a database.
984 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
985 new CRLs added to a directory can be used. New command line option
986 -verify_return_error to s_client and s_server. This causes real errors
987 to be returned by the verify callback instead of carrying on no matter
988 what. This reflects the way a "real world" verify callback would behave.
991 *) GOST engine, supporting several GOST algorithms and public key formats.
992 Kindly donated by Cryptocom.
995 *) Partial support for Issuing Distribution Point CRL extension. CRLs
996 partitioned by DP are handled but no indirect CRL or reason partitioning
997 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
998 selected via a scoring technique which handles IDP and AKID in CRLs.
1001 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1002 will ultimately be used for all verify operations: this will remove the
1003 X509_STORE dependency on certificate verification and allow alternative
1004 lookup methods. X509_STORE based implementations of these two callbacks.
1007 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1008 Modify get_crl() to find a valid (unexpired) CRL if possible.
1011 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1012 this would be called X509_CRL_cmp() but that name is already used by
1013 a function that just compares CRL issuer names. Cache several CRL
1014 extensions in X509_CRL structure and cache CRLDP in X509.
1017 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1018 this maps equivalent X509_NAME structures into a consistent structure.
1019 Name comparison can then be performed rapidly using memcmp().
1022 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1026 *) Allow digests to supply their own micalg string for S/MIME type using
1027 the ctrl EVP_MD_CTRL_MICALG.
1030 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1031 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1032 ctrl. It can then customise the structure before and/or after signing
1036 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1037 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1038 to free up any added signature OIDs.
1041 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1042 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1043 digest and cipher tables. New options added to openssl utility:
1044 list-message-digest-algorithms and list-cipher-algorithms.
1047 *) Change the array representation of binary polynomials: the list
1048 of degrees of non-zero coefficients is now terminated with -1.
1049 Previously it was terminated with 0, which was also part of the
1050 value; thus, the array representation was not applicable to
1051 polynomials where t^0 has coefficient zero. This change makes
1052 the array representation useful in a more general context.
1055 *) Various modifications and fixes to SSL/TLS cipher string
1056 handling. For ECC, the code now distinguishes between fixed ECDH
1057 with RSA certificates on the one hand and with ECDSA certificates
1058 on the other hand, since these are separate ciphersuites. The
1059 unused code for Fortezza ciphersuites has been removed.
1061 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1062 (not "ECDHE"). For consistency with the code for DH
1063 certificates, use of ECDH certificates is now considered ECDH
1064 authentication, not RSA or ECDSA authentication (the latter is
1065 merely the CA's signing algorithm and not actively used in the
1068 The temporary ciphersuite alias "ECCdraft" is no longer
1069 available, and ECC ciphersuites are no longer excluded from "ALL"
1070 and "DEFAULT". The following aliases now exist for RFC 4492
1071 ciphersuites, most of these by analogy with the DH case:
1073 kECDHr - ECDH cert, signed with RSA
1074 kECDHe - ECDH cert, signed with ECDSA
1075 kECDH - ECDH cert (signed with either RSA or ECDSA)
1076 kEECDH - ephemeral ECDH
1077 ECDH - ECDH cert or ephemeral ECDH
1083 AECDH - anonymous ECDH
1084 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1088 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1089 Use correct micalg parameters depending on digest(s) in signed message.
1092 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1093 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1096 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1097 an engine to register a method. Add ENGINE lookups for methods and
1098 functional reference processing.
1101 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1102 EVP_{Sign,Verify}* which allow an application to customise the signature
1106 *) New -resign option to smime utility. This adds one or more signers
1107 to an existing PKCS#7 signedData structure. Also -md option to use an
1108 alternative message digest algorithm for signing.
1111 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1112 create PKCS7 structures containing multiple signers. Update smime
1113 application to support multiple signers.
1116 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1120 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1121 Reorganize PBE internals to lookup from a static table using NIDs,
1122 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1123 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1124 PRF which will be automatically used with PBES2.
1127 *) Replace the algorithm specific calls to generate keys in "req" with the
1131 *) Update PKCS#7 enveloped data routines to use new API. This is now
1132 supported by any public key method supporting the encrypt operation. A
1133 ctrl is added to allow the public key algorithm to examine or modify
1134 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1138 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1139 a default digest type to use. In most cases this will be SHA1 but some
1140 algorithms (such as GOST) need to specify an alternative digest. The
1141 return value indicates how strong the prefernce is 1 means optional and
1142 2 is mandatory (that is it is the only supported type). Modify
1143 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1144 use the default md. Update openssl utilities to use the default digest
1145 type for signing if it is not explicitly indicated.
1148 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1149 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1150 signing method from the key type. This effectively removes the link
1151 between digests and public key types.
1154 *) Add an OID cross reference table and utility functions. Its purpose is to
1155 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1156 rsaEncryption. This will allow some of the algorithm specific hackery
1157 needed to use the correct OID to be removed.
1160 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1161 structures for PKCS7_sign(). They are now set up by the relevant public
1165 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1168 *) Add support for key derivation (agreement) in the API, DH method and
1172 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1173 public and private key formats. As a side effect these add additional
1174 command line functionality not previously available: DSA signatures can be
1175 generated and verified using pkeyutl and DH key support and generation in
1180 [Oliver Tappe <zooey@hirschkaefer.de>]
1182 *) New make target "install_html_docs" installs HTML renditions of the
1184 [Oliver Tappe <zooey@hirschkaefer.de>]
1186 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1187 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1188 support key and parameter generation and add initial key generation
1189 functionality for RSA.
1192 *) Add functions for main EVP_PKEY_method operations. The undocumented
1193 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1194 EVP_PKEY_{encrypt,decrypt}_old.
1197 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1198 key API, doesn't do much yet.
1201 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1202 public key algorithms. New option to openssl utility:
1203 "list-public-key-algorithms" to print out info.
1206 *) Implement the Supported Elliptic Curves Extension for
1207 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1210 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1211 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1214 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1215 utilities such as rsa, dsa, dsaparam etc except they process any key
1219 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1220 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1221 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1225 *) Initial support for pluggable public key ASN1.
1226 De-spaghettify the public key ASN1 handling. Move public and private
1227 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1228 algorithm specific handling to a single module within the relevant
1229 algorithm directory. Add functions to allow (near) opaque processing
1230 of public and private key structures.
1233 *) Implement the Supported Point Formats Extension for
1234 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1237 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1238 for the psk identity [hint] and the psk callback functions to the
1239 SSL_SESSION, SSL and SSL_CTX structure.
1242 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1246 SSL_CTX_use_psk_identity_hint
1247 SSL_get_psk_identity_hint
1248 SSL_get_psk_identity
1249 SSL_use_psk_identity_hint
1251 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1253 *) Add RFC 3161 compliant time stamp request creation, response generation
1254 and response verification functionality.
1255 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1257 *) Add initial support for TLS extensions, specifically for the server_name
1258 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1259 have new members for a host name. The SSL data structure has an
1260 additional member SSL_CTX *initial_ctx so that new sessions can be
1261 stored in that context to allow for session resumption, even after the
1262 SSL has been switched to a new SSL_CTX in reaction to a client's
1263 server_name extension.
1265 New functions (subject to change):
1267 SSL_get_servername()
1268 SSL_get_servername_type()
1271 New CTRL codes and macros (subject to change):
1273 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1274 - SSL_CTX_set_tlsext_servername_callback()
1275 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1276 - SSL_CTX_set_tlsext_servername_arg()
1277 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1279 openssl s_client has a new '-servername ...' option.
1281 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1282 '-key2 ...', '-servername_fatal' (subject to change). This allows
1283 testing the HostName extension for a specific single host name ('-cert'
1284 and '-key' remain fallbacks for handshakes without HostName
1285 negotiation). If the unrecogninzed_name alert has to be sent, this by
1286 default is a warning; it becomes fatal with the '-servername_fatal'
1289 [Peter Sylvester, Remy Allais, Christophe Renou]
1291 *) Whirlpool hash implementation is added.
1294 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1295 bn(64,32). Because of instruction set limitations it doesn't have
1296 any negative impact on performance. This was done mostly in order
1297 to make it possible to share assembler modules, such as bn_mul_mont
1298 implementations, between 32- and 64-bit builds without hassle.
1301 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1302 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1306 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1307 dedicated Montgomery multiplication procedure, is introduced.
1308 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1309 "64-bit" performance on certain 32-bit targets.
1312 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1313 in SSL structures. New SSL ctrl to set maximum send fragment size.
1314 Save memory by seeting the I/O buffer sizes dynamically instead of
1315 using the maximum available value.
1318 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1319 in addition to the text details.
1322 *) Very, very preliminary EXPERIMENTAL support for printing of general
1323 ASN1 structures. This currently produces rather ugly output and doesn't
1324 handle several customised structures at all.
1327 *) Integrated support for PVK file format and some related formats such
1328 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1329 these in the 'rsa' and 'dsa' utilities.
1332 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1335 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1336 place for the (very old) "NETSCAPE" format certificates which are now
1337 handled using new ASN1 code equivalents.
1340 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1341 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1342 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1345 *) Modify CRL distribution points extension code to print out previously
1346 unsupported fields. Enhance extension setting code to allow setting of
1350 *) Add print and set support for Issuing Distribution Point CRL extension.
1353 *) Change 'Configure' script to enable Camellia by default.
1356 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1358 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1359 Thanks to Antonio Martin, Enterprise Secure Access Research and
1360 Development, Cisco Systems, Inc. for discovering this bug and
1361 preparing a fix. (CVE-2012-0050)
1364 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1366 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1367 of the Vaudenay padding oracle attack on CBC mode encryption
1368 which enables an efficient plaintext recovery attack against
1369 the OpenSSL implementation of DTLS. Their attack exploits timing
1370 differences arising during decryption processing. A research
1371 paper describing this attack can be found at:
1372 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1373 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1374 Security Group at Royal Holloway, University of London
1375 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1376 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1377 for preparing the fix. (CVE-2011-4108)
1378 [Robin Seggelmann, Michael Tuexen]
1380 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1381 [Ben Laurie, Kasper <ekasper@google.com>]
1383 *) Clear bytes used for block padding of SSL 3.0 records.
1385 [Adam Langley (Google)]
1387 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1388 Kadianakis <desnacked@gmail.com> for discovering this issue and
1389 Adam Langley for preparing the fix. (CVE-2011-4619)
1390 [Adam Langley (Google)]
1392 *) Prevent malformed RFC3779 data triggering an assertion failure.
1393 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1394 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1395 [Rob Austein <sra@hactrn.net>]
1397 *) Fix ssl_ciph.c set-up race.
1398 [Adam Langley (Google)]
1400 *) Fix spurious failures in ecdsatest.c.
1401 [Emilia Käsper (Google)]
1403 *) Fix the BIO_f_buffer() implementation (which was mixing different
1404 interpretations of the '..._len' fields).
1405 [Adam Langley (Google)]
1407 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1408 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1409 threads won't reuse the same blinding coefficients.
1411 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1412 lock to call BN_BLINDING_invert_ex, and avoids one use of
1413 BN_BLINDING_update for each BN_BLINDING structure (previously,
1414 the last update always remained unused).
1415 [Emilia Käsper (Google)]
1417 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1418 for multi-threaded use of ECDH.
1419 [Adam Langley (Google)]
1421 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1424 *) Add protection against ECDSA timing attacks as mentioned in the paper
1425 by Billy Bob Brumley and Nicola Tuveri, see:
1427 http://eprint.iacr.org/2011/232.pdf
1429 [Billy Bob Brumley and Nicola Tuveri]
1431 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1433 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1434 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1436 *) Fix bug in string printing code: if *any* escaping is enabled we must
1437 escape the escape character (backslash) or the resulting string is
1441 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1443 *) Disable code workaround for ancient and obsolete Netscape browsers
1444 and servers: an attacker can use it in a ciphersuite downgrade attack.
1445 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1448 *) Fixed J-PAKE implementation error, originally discovered by
1449 Sebastien Martini, further info and confirmation from Stefan
1450 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1453 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1455 *) Fix extension code to avoid race conditions which can result in a buffer
1456 overrun vulnerability: resumed sessions must not be modified as they can
1457 be shared by multiple threads. CVE-2010-3864
1460 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1463 *) Don't reencode certificate when calculating signature: cache and use
1464 the original encoding instead. This makes signature verification of
1465 some broken encodings work correctly.
1468 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1469 is also one of the inputs.
1470 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1472 *) Don't repeatedly append PBE algorithms to table if they already exist.
1473 Sort table on each new add. This effectively makes the table read only
1474 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1478 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1480 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1483 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1484 access or freeing data twice (CVE-2010-0742)
1485 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1487 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1488 common in certificates and some applications which only call
1489 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1493 Reduce copying into .apps and .test in makevms.com
1494 Don't try to use blank CA certificate in CA.com
1495 Allow use of C files from original directories in maketests.com
1496 [Steven M. Schweda" <sms@antinode.info>]
1498 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1500 *) When rejecting SSL/TLS records due to an incorrect version number, never
1501 update s->server with a new major version number. As of
1502 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1503 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1504 the previous behavior could result in a read attempt at NULL when
1505 receiving specific incorrect SSL/TLS records once record payload
1506 protection is active. (CVE-2010-0740)
1507 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1509 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1510 could be crashed if the relevant tables were not present (e.g. chrooted).
1511 [Tomas Hoger <thoger@redhat.com>]
1513 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1515 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1516 [Martin Olsson, Neel Mehta]
1518 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1519 accommodate for stack sorting, always a write lock!).
1522 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1523 excessive delays in the RAND_poll(): over a minute. As a workaround
1524 include a time check in the inner Heap32Next loop too.
1527 *) The code that handled flushing of data in SSL/TLS originally used the
1528 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1529 the problem outlined in PR#1949. The fix suggested there however can
1530 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1531 of Apache). So instead simplify the code to flush unconditionally.
1532 This should be fine since flushing with no data to flush is a no op.
1535 *) Handle TLS versions 2.0 and later properly and correctly use the
1536 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1537 off ancient servers have a habit of sticking around for a while...
1540 *) Modify compression code so it frees up structures without using the
1541 ex_data callbacks. This works around a problem where some applications
1542 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1543 restarting) then use compression (e.g. SSL with compression) later.
1544 This results in significant per-connection memory leaks and
1545 has caused some security issues including CVE-2008-1678 and
1549 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1550 change when encrypting or decrypting.
1553 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1554 connect and renegotiate with servers which do not support RI.
1555 Until RI is more widely deployed this option is enabled by default.
1558 *) Add "missing" ssl ctrls to clear options and mode.
1561 *) If client attempts to renegotiate and doesn't support RI respond with
1562 a no_renegotiation alert as required by RFC5746. Some renegotiating
1563 TLS clients will continue a connection gracefully when they receive
1564 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1565 waiting for a server hello which it will never receive. Now we treat a
1566 received no_renegotiation alert as a fatal error. This is because
1567 applications requesting a renegotiation might well expect it to succeed
1568 and would have no code in place to handle the server denying it so the
1569 only safe thing to do is to terminate the connection.
1572 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1573 peer supports secure renegotiation and 0 otherwise. Print out peer
1574 renegotiation support in s_client/s_server.
1577 *) Replace the highly broken and deprecated SPKAC certification method with
1578 the updated NID creation version. This should correctly handle UTF8.
1581 *) Implement RFC5746. Re-enable renegotiation but require the extension
1582 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1583 turns out to be a bad idea. It has been replaced by
1584 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1585 SSL_CTX_set_options(). This is really not recommended unless you
1586 know what you are doing.
1587 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1589 *) Fixes to stateless session resumption handling. Use initial_ctx when
1590 issuing and attempting to decrypt tickets in case it has changed during
1591 servername handling. Use a non-zero length session ID when attempting
1592 stateless session resumption: this makes it possible to determine if
1593 a resumption has occurred immediately after receiving server hello
1594 (several places in OpenSSL subtly assume this) instead of later in
1598 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1599 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1600 fixes for a few places where the return code is not checked
1602 [Julia Lawall <julia@diku.dk>]
1604 *) Add --strict-warnings option to Configure script to include devteam
1605 warnings in other configurations.
1608 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1609 makes it possible to install openssl libraries in locations which
1610 have names other than "lib", for example "/usr/lib64" which some
1612 [Steve Henson, based on patch from Jeremy Utley]
1614 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1615 X690 8.9.12 and can produce some misleading textual output of OIDs.
1616 [Steve Henson, reported by Dan Kaminsky]
1618 *) Delete MD2 from algorithm tables. This follows the recommendation in
1619 several standards that it is not used in new applications due to
1620 several cryptographic weaknesses. For binary compatibility reasons
1621 the MD2 API is still compiled in by default.
1624 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1628 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1629 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1631 [Guenter <lists@gknw.net>]
1633 *) Fix the server certificate chain building code to use X509_verify_cert(),
1634 it used to have an ad-hoc builder which was unable to cope with anything
1635 other than a simple chain.
1636 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1638 *) Don't check self signed certificate signatures in X509_verify_cert()
1639 by default (a flag can override this): it just wastes time without
1640 adding any security. As a useful side effect self signed root CAs
1641 with non-FIPS digests are now usable in FIPS mode.
1644 *) In dtls1_process_out_of_seq_message() the check if the current message
1645 is already buffered was missing. For every new message was memory
1646 allocated, allowing an attacker to perform an denial of service attack
1647 with sending out of seq handshake messages until there is no memory
1648 left. Additionally every future messege was buffered, even if the
1649 sequence number made no sense and would be part of another handshake.
1650 So only messages with sequence numbers less than 10 in advance will be
1651 buffered. (CVE-2009-1378)
1652 [Robin Seggelmann, discovered by Daniel Mentz]
1654 *) Records are buffered if they arrive with a future epoch to be
1655 processed after finishing the corresponding handshake. There is
1656 currently no limitation to this buffer allowing an attacker to perform
1657 a DOS attack with sending records with future epochs until there is no
1658 memory left. This patch adds the pqueue_size() function to detemine
1659 the size of a buffer and limits the record buffer to 100 entries.
1661 [Robin Seggelmann, discovered by Daniel Mentz]
1663 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1664 parent structure is freed. (CVE-2009-1379)
1667 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1668 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1671 [Ilya O. <vrghost@gmail.com>]
1673 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1675 *) Disable renegotiation completely - this fixes a severe security
1676 problem (CVE-2009-3555) at the cost of breaking all
1677 renegotiation. Renegotiation can be re-enabled by setting
1678 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1679 run-time. This is really not recommended unless you know what
1683 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1685 *) Don't set val to NULL when freeing up structures, it is freed up by
1686 underlying code. If sizeof(void *) > sizeof(long) this can result in
1687 zeroing past the valid field. (CVE-2009-0789)
1688 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1690 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1691 checked correctly. This would allow some invalid signed attributes to
1692 appear to verify correctly. (CVE-2009-0591)
1693 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1695 *) Reject UniversalString and BMPString types with invalid lengths. This
1696 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1697 a legal length. (CVE-2009-0590)
1700 *) Set S/MIME signing as the default purpose rather than setting it
1701 unconditionally. This allows applications to override it at the store
1705 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1706 to handle some structures.
1709 *) Improve efficiency of mem_gets: don't search whole buffer each time
1711 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1713 *) New -hex option for openssl rand.
1716 *) Print out UTF8String and NumericString when parsing ASN1.
1719 *) Support NumericString type for name components.
1722 *) Allow CC in the environment to override the automatically chosen
1723 compiler. Note that nothing is done to ensure flags work with the
1727 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1729 *) Properly check EVP_VerifyFinal() and similar return values
1731 [Ben Laurie, Bodo Moeller, Google Security Team]
1733 *) Enable TLS extensions by default.
1736 *) Allow the CHIL engine to be loaded, whether the application is
1737 multithreaded or not. (This does not release the developer from the
1738 obligation to set up the dynamic locking callbacks.)
1739 [Sander Temme <sander@temme.net>]
1741 *) Use correct exit code if there is an error in dgst command.
1742 [Steve Henson; problem pointed out by Roland Dirlewanger]
1744 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1745 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1748 *) Add experimental JPAKE support, including demo authentication in
1749 s_client and s_server.
1752 *) Set the comparison function in v3_addr_canonize().
1753 [Rob Austein <sra@hactrn.net>]
1755 *) Add support for XMPP STARTTLS in s_client.
1756 [Philip Paeps <philip@freebsd.org>]
1758 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1759 to ensure that even with this option, only ciphersuites in the
1760 server's preference list will be accepted. (Note that the option
1761 applies only when resuming a session, so the earlier behavior was
1762 just about the algorithm choice for symmetric cryptography.)
1765 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1767 *) Fix NULL pointer dereference if a DTLS server received
1768 ChangeCipherSpec as first record (CVE-2009-1386).
1771 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1772 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1775 *) The fix in 0.9.8c that supposedly got rid of unsafe
1776 double-checked locking was incomplete for RSA blinding,
1777 addressing just one layer of what turns out to have been
1778 doubly unsafe triple-checked locking.
1780 So now fix this for real by retiring the MONT_HELPER macro
1781 in crypto/rsa/rsa_eay.c.
1783 [Bodo Moeller; problem pointed out by Marius Schilder]
1785 *) Various precautionary measures:
1787 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1789 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1790 (NB: This would require knowledge of the secret session ticket key
1791 to exploit, in which case you'd be SOL either way.)
1793 - Change bn_nist.c so that it will properly handle input BIGNUMs
1794 outside the expected range.
1796 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1799 [Neel Mehta, Bodo Moeller]
1801 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1802 the load fails. Useful for distros.
1803 [Ben Laurie and the FreeBSD team]
1805 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1808 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1811 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1813 This work was sponsored by Logica.
1816 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1817 keystores. Support for SSL/TLS client authentication too.
1818 Not compiled unless enable-capieng specified to Configure.
1820 This work was sponsored by Logica.
1823 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1824 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1825 attribute creation routines such as certifcate requests and PKCS#12
1829 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1831 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1832 handshake which could lead to a cilent crash as found using the
1833 Codenomicon TLS test suite (CVE-2008-1672)
1834 [Steve Henson, Mark Cox]
1836 *) Fix double free in TLS server name extensions which could lead to
1837 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1840 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1842 Clear the error queue to ensure that error entries left from
1843 older function calls do not interfere with the correct operation.
1844 [Lutz Jaenicke, Erik de Castro Lopo]
1846 *) Remove root CA certificates of commercial CAs:
1848 The OpenSSL project does not recommend any specific CA and does not
1849 have any policy with respect to including or excluding any CA.
1850 Therefore it does not make any sense to ship an arbitrary selection
1851 of root CA certificates with the OpenSSL software.
1854 *) RSA OAEP patches to fix two separate invalid memory reads.
1855 The first one involves inputs when 'lzero' is greater than
1856 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1857 before the beginning of from). The second one involves inputs where
1858 the 'db' section contains nothing but zeroes (there is a one-byte
1859 invalid read after the end of 'db').
1860 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1862 *) Partial backport from 0.9.9-dev:
1864 Introduce bn_mul_mont (dedicated Montgomery multiplication
1865 procedure) as a candidate for BIGNUM assembler implementation.
1866 While 0.9.9-dev uses assembler for various architectures, only
1867 x86_64 is available by default here in the 0.9.8 branch, and
1868 32-bit x86 is available through a compile-time setting.
1870 To try the 32-bit x86 assembler implementation, use Configure
1871 option "enable-montasm" (which exists only for this backport).
1873 As "enable-montasm" for 32-bit x86 disclaims code stability
1874 anyway, in this constellation we activate additional code
1875 backported from 0.9.9-dev for further performance improvements,
1876 namely BN_from_montgomery_word. (To enable this otherwise,
1877 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1879 [Andy Polyakov (backport partially by Bodo Moeller)]
1881 *) Add TLS session ticket callback. This allows an application to set
1882 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1883 values. This is useful for key rollover for example where several key
1884 sets may exist with different names.
1887 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1888 This was broken until now in 0.9.8 releases, such that the only way
1889 a registered ENGINE could be used (assuming it initialises
1890 successfully on the host) was to explicitly set it as the default
1891 for the relevant algorithms. This is in contradiction with 0.9.7
1892 behaviour and the documentation. With this fix, when an ENGINE is
1893 registered into a given algorithm's table of implementations, the
1894 'uptodate' flag is reset so that auto-discovery will be used next
1895 time a new context for that algorithm attempts to select an
1897 [Ian Lister (tweaked by Geoff Thorpe)]
1899 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1900 implemention in the following ways:
1902 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1905 Lack of BER streaming support means one pass streaming processing is
1906 only supported if data is detached: setting the streaming flag is
1907 ignored for embedded content.
1909 CMS support is disabled by default and must be explicitly enabled
1910 with the enable-cms configuration option.
1913 *) Update the GMP engine glue to do direct copies between BIGNUM and
1914 mpz_t when openssl and GMP use the same limb size. Otherwise the
1915 existing "conversion via a text string export" trick is still used.
1916 [Paul Sheer <paulsheer@gmail.com>]
1918 *) Zlib compression BIO. This is a filter BIO which compressed and
1919 uncompresses any data passed through it.
1922 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1923 RFC3394 compatible AES key wrapping.
1926 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1927 sets string data without copying. X509_ALGOR_set0() and
1928 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1929 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1930 from an X509_ATTRIBUTE structure optionally checking it occurs only
1931 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1935 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1936 to get the expected BN_FLG_CONSTTIME behavior.
1937 [Bodo Moeller (Google)]
1941 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1942 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1943 - added some more tests to do_tests.pl
1944 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1945 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1946 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1947 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1948 - various changes to netware.pl to enable gcc-cross builds on Win32
1950 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1951 - various changes to fix missing prototype warnings
1952 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1953 - added AES, WHIRLPOOL and CPUID assembler code to build files
1954 - added missing AES assembler make rules to mk1mf.pl
1955 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1956 [Guenter Knauf <eflash@gmx.net>]
1958 *) Implement certificate status request TLS extension defined in RFC3546.
1959 A client can set the appropriate parameters and receive the encoded
1960 OCSP response via a callback. A server can query the supplied parameters
1961 and set the encoded OCSP response in the callback. Add simplified examples
1962 to s_client and s_server.
1965 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1967 *) Fix various bugs:
1968 + Binary incompatibility of ssl_ctx_st structure
1969 + DTLS interoperation with non-compliant servers
1970 + Don't call get_session_cb() without proposed session
1971 + Fix ia64 assembler code
1972 [Andy Polyakov, Steve Henson]
1974 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1976 *) DTLS Handshake overhaul. There were longstanding issues with
1977 OpenSSL DTLS implementation, which were making it impossible for
1978 RFC 4347 compliant client to communicate with OpenSSL server.
1979 Unfortunately just fixing these incompatibilities would "cut off"
1980 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1981 server keeps tolerating non RFC compliant syntax. The opposite is
1982 not true, 0.9.8f client can not communicate with earlier server.
1983 This update even addresses CVE-2007-4995.
1986 *) Changes to avoid need for function casts in OpenSSL: some compilers
1987 (gcc 4.2 and later) reject their use.
1988 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1991 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1992 RFC4507bis. The encrypted ticket format is an encrypted encoded
1993 SSL_SESSION structure, that way new session features are automatically
1996 If a client application caches session in an SSL_SESSION structure
1997 support is transparent because tickets are now stored in the encoded
2000 The SSL_CTX structure automatically generates keys for ticket
2001 protection in servers so again support should be possible
2002 with no application modification.
2004 If a client or server wishes to disable RFC4507 support then the option
2005 SSL_OP_NO_TICKET can be set.
2007 Add a TLS extension debugging callback to allow the contents of any client
2008 or server extensions to be examined.
2010 This work was sponsored by Google.
2013 *) Add initial support for TLS extensions, specifically for the server_name
2014 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2015 have new members for a host name. The SSL data structure has an
2016 additional member SSL_CTX *initial_ctx so that new sessions can be
2017 stored in that context to allow for session resumption, even after the
2018 SSL has been switched to a new SSL_CTX in reaction to a client's
2019 server_name extension.
2021 New functions (subject to change):
2023 SSL_get_servername()
2024 SSL_get_servername_type()
2027 New CTRL codes and macros (subject to change):
2029 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2030 - SSL_CTX_set_tlsext_servername_callback()
2031 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2032 - SSL_CTX_set_tlsext_servername_arg()
2033 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2035 openssl s_client has a new '-servername ...' option.
2037 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2038 '-key2 ...', '-servername_fatal' (subject to change). This allows
2039 testing the HostName extension for a specific single host name ('-cert'
2040 and '-key' remain fallbacks for handshakes without HostName
2041 negotiation). If the unrecogninzed_name alert has to be sent, this by
2042 default is a warning; it becomes fatal with the '-servername_fatal'
2045 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2047 *) Add AES and SSE2 assembly language support to VC++ build.
2050 *) Mitigate attack on final subtraction in Montgomery reduction.
2053 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2054 (which previously caused an internal error).
2057 *) Squeeze another 10% out of IGE mode when in != out.
2060 *) AES IGE mode speedup.
2061 [Dean Gaudet (Google)]
2063 *) Add the Korean symmetric 128-bit cipher SEED (see
2064 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2065 add SEED ciphersuites from RFC 4162:
2067 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2068 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2069 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2070 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2072 To minimize changes between patchlevels in the OpenSSL 0.9.8
2073 series, SEED remains excluded from compilation unless OpenSSL
2074 is configured with 'enable-seed'.
2075 [KISA, Bodo Moeller]
2077 *) Mitigate branch prediction attacks, which can be practical if a
2078 single processor is shared, allowing a spy process to extract
2079 information. For detailed background information, see
2080 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2081 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2082 and Necessary Software Countermeasures"). The core of the change
2083 are new versions BN_div_no_branch() and
2084 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2085 respectively, which are slower, but avoid the security-relevant
2086 conditional branches. These are automatically called by BN_div()
2087 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2088 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2089 remove a conditional branch.
2091 BN_FLG_CONSTTIME is the new name for the previous
2092 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2093 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2094 in the exponent causes BN_mod_exp_mont() to use the alternative
2095 implementation in BN_mod_exp_mont_consttime().) The old name
2096 remains as a deprecated alias.
2098 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2099 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2100 constant-time implementations for more than just exponentiation.
2101 Here too the old name is kept as a deprecated alias.
2103 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2104 the BN_BLINDING structure gets an independent copy of the
2105 modulus. This means that the previous "BIGNUM *m" argument to
2106 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2107 essentially becomes "const BIGNUM *m", although we can't actually
2108 change this in the header file before 0.9.9. It allows
2109 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2110 enable BN_FLG_CONSTTIME.
2112 [Matthew D Wood (Intel Corp)]
2114 *) In the SSL/TLS server implementation, be strict about session ID
2115 context matching (which matters if an application uses a single
2116 external cache for different purposes). Previously,
2117 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2118 set. This did ensure strict client verification, but meant that,
2119 with applications using a single external cache for quite
2120 different requirements, clients could circumvent ciphersuite
2121 restrictions for a given session ID context by starting a session
2122 in a different context.
2125 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2126 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2127 authentication-only ciphersuites.
2130 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2131 not complete and could lead to a possible single byte overflow
2132 (CVE-2007-5135) [Ben Laurie]
2134 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2136 *) Since AES128 and AES256 (and similarly Camellia128 and
2137 Camellia256) share a single mask bit in the logic of
2138 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2139 kludge to work properly if AES128 is available and AES256 isn't
2140 (or if Camellia128 is available and Camellia256 isn't).
2143 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2144 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2145 When a point or a seed is encoded in a BIT STRING, we need to
2146 prevent the removal of trailing zero bits to get the proper DER
2147 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2148 of a NamedBitList, for which trailing 0 bits need to be removed.)
2151 *) Have SSL/TLS server implementation tolerate "mismatched" record
2152 protocol version while receiving ClientHello even if the
2153 ClientHello is fragmented. (The server can't insist on the
2154 particular protocol version it has chosen before the ServerHello
2155 message has informed the client about his choice.)
2158 *) Add RFC 3779 support.
2159 [Rob Austein for ARIN, Ben Laurie]
2161 *) Load error codes if they are not already present instead of using a
2162 static variable. This allows them to be cleanly unloaded and reloaded.
2163 Improve header file function name parsing.
2166 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2167 or CAPABILITY handshake as required by RFCs.
2170 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2172 *) Introduce limits to prevent malicious keys being able to
2173 cause a denial of service. (CVE-2006-2940)
2174 [Steve Henson, Bodo Moeller]
2176 *) Fix ASN.1 parsing of certain invalid structures that can result
2177 in a denial of service. (CVE-2006-2937) [Steve Henson]
2179 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2180 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2182 *) Fix SSL client code which could crash if connecting to a
2183 malicious SSLv2 server. (CVE-2006-4343)
2184 [Tavis Ormandy and Will Drewry, Google Security Team]
2186 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2187 match only those. Before that, "AES256-SHA" would be interpreted
2188 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2189 the same strength classification in 0.9.7h) as we currently only
2190 have a single AES bit in the ciphersuite description bitmap.
2191 That change, however, also applied to ciphersuite strings such as
2192 "RC4-MD5" that intentionally matched multiple ciphersuites --
2193 namely, SSL 2.0 ciphersuites in addition to the more common ones
2194 from SSL 3.0/TLS 1.0.
2196 So we change the selection algorithm again: Naming an explicit
2197 ciphersuite selects this one ciphersuite, and any other similar
2198 ciphersuite (same bitmap) from *other* protocol versions.
2199 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2200 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2202 Since SSL 2.0 does not have any ciphersuites for which the
2203 128/256 bit distinction would be relevant, this works for now.
2204 The proper fix will be to use different bits for AES128 and
2205 AES256, which would have avoided the problems from the beginning;
2206 however, bits are scarce, so we can only do this in a new release
2207 (not just a patchlevel) when we can change the SSL_CIPHER
2208 definition to split the single 'unsigned long mask' bitmap into
2209 multiple values to extend the available space.
2213 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2215 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2216 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2218 *) Add AES IGE and biIGE modes.
2221 *) Change the Unix randomness entropy gathering to use poll() when
2222 possible instead of select(), since the latter has some
2223 undesirable limitations.
2224 [Darryl Miles via Richard Levitte and Bodo Moeller]
2226 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2227 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2228 cannot be implicitly activated as part of, e.g., the "AES" alias.
2229 However, please upgrade to OpenSSL 0.9.9[-dev] for
2230 non-experimental use of the ECC ciphersuites to get TLS extension
2231 support, which is required for curve and point format negotiation
2232 to avoid potential handshake problems.
2235 *) Disable rogue ciphersuites:
2237 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2238 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2239 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2241 The latter two were purportedly from
2242 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2245 Also deactivate the remaining ciphersuites from
2246 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2247 unofficial, and the ID has long expired.
2250 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2251 dual-core machines) and other potential thread-safety issues.
2254 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2255 versions), which is now available for royalty-free use
2256 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2257 Also, add Camellia TLS ciphersuites from RFC 4132.
2259 To minimize changes between patchlevels in the OpenSSL 0.9.8
2260 series, Camellia remains excluded from compilation unless OpenSSL
2261 is configured with 'enable-camellia'.
2264 *) Disable the padding bug check when compression is in use. The padding
2265 bug check assumes the first packet is of even length, this is not
2266 necessarily true if compresssion is enabled and can result in false
2267 positives causing handshake failure. The actual bug test is ancient
2268 code so it is hoped that implementations will either have fixed it by
2269 now or any which still have the bug do not support compression.
2272 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2274 *) When applying a cipher rule check to see if string match is an explicit
2275 cipher suite and only match that one cipher suite if it is.
2278 *) Link in manifests for VC++ if needed.
2279 [Austin Ziegler <halostatue@gmail.com>]
2281 *) Update support for ECC-based TLS ciphersuites according to
2282 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2283 TLS extensions, which are supported starting with the 0.9.9
2284 branch, not in the OpenSSL 0.9.8 branch).
2287 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2288 opaque EVP_CIPHER_CTX handling.
2291 *) Fixes and enhancements to zlib compression code. We now only use
2292 "zlib1.dll" and use the default __cdecl calling convention on Win32
2293 to conform with the standards mentioned here:
2294 http://www.zlib.net/DLL_FAQ.txt
2295 Static zlib linking now works on Windows and the new --with-zlib-include
2296 --with-zlib-lib options to Configure can be used to supply the location
2297 of the headers and library. Gracefully handle case where zlib library
2301 *) Several fixes and enhancements to the OID generation code. The old code
2302 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2303 handle numbers larger than ULONG_MAX, truncated printing and had a
2304 non standard OBJ_obj2txt() behaviour.
2307 *) Add support for building of engines under engine/ as shared libraries
2308 under VC++ build system.
2311 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2312 Hopefully, we will not see any false combination of paths any more.
2315 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2317 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2318 (part of SSL_OP_ALL). This option used to disable the
2319 countermeasure against man-in-the-middle protocol-version
2320 rollback in the SSL 2.0 server implementation, which is a bad
2321 idea. (CVE-2005-2969)
2323 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2324 for Information Security, National Institute of Advanced Industrial
2325 Science and Technology [AIST], Japan)]
2327 *) Add two function to clear and return the verify parameter flags.
2330 *) Keep cipherlists sorted in the source instead of sorting them at
2331 runtime, thus removing the need for a lock.
2334 *) Avoid some small subgroup attacks in Diffie-Hellman.
2335 [Nick Mathewson and Ben Laurie]
2337 *) Add functions for well-known primes.
2340 *) Extended Windows CE support.
2341 [Satoshi Nakamura and Andy Polyakov]
2343 *) Initialize SSL_METHOD structures at compile time instead of during
2344 runtime, thus removing the need for a lock.
2347 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2348 attempting to decrypt each encrypted key in turn. Add support to
2352 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2354 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2357 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2360 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2361 key into the same file any more.
2364 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2367 *) Add -utf8 command line and config file option to 'ca'.
2368 [Stefan <stf@udoma.org]
2370 *) Removed the macro des_crypt(), as it seems to conflict with some
2371 libraries. Use DES_crypt().
2374 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2375 involves renaming the source and generated shared-libs for
2376 both. The engines will accept the corrected or legacy ids
2377 ('ncipher' and '4758_cca' respectively) when binding. NB,
2378 this only applies when building 'shared'.
2379 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2381 *) Add attribute functions to EVP_PKEY structure. Modify
2382 PKCS12_create() to recognize a CSP name attribute and
2383 use it. Make -CSP option work again in pkcs12 utility.
2386 *) Add new functionality to the bn blinding code:
2387 - automatic re-creation of the BN_BLINDING parameters after
2388 a fixed number of uses (currently 32)
2389 - add new function for parameter creation
2390 - introduce flags to control the update behaviour of the
2391 BN_BLINDING parameters
2392 - hide BN_BLINDING structure
2393 Add a second BN_BLINDING slot to the RSA structure to improve
2394 performance when a single RSA object is shared among several
2398 *) Add support for DTLS.
2399 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2401 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2402 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2405 *) Remove buggy and incompletet DH cert support from
2406 ssl/ssl_rsa.c and ssl/s3_both.c
2409 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2410 the apps/openssl applications.
2413 *) Compile clean with "-Wall -Wmissing-prototypes
2414 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2415 DEBUG_SAFESTACK must also be set.
2418 *) Change ./Configure so that certain algorithms can be disabled by default.
2419 The new counterpiece to "no-xxx" is "enable-xxx".
2421 The patented RC5 and MDC2 algorithms will now be disabled unless
2422 "enable-rc5" and "enable-mdc2", respectively, are specified.
2424 (IDEA remains enabled despite being patented. This is because IDEA
2425 is frequently required for interoperability, and there is no license
2426 fee for non-commercial use. As before, "no-idea" can be used to
2427 avoid this algorithm.)
2431 *) Add processing of proxy certificates (see RFC 3820). This work was
2432 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2433 EGEE (Enabling Grids for E-science in Europe).
2436 *) RC4 performance overhaul on modern architectures/implementations, such
2437 as Intel P4, IA-64 and AMD64.
2440 *) New utility extract-section.pl. This can be used specify an alternative
2441 section number in a pod file instead of having to treat each file as
2442 a separate case in Makefile. This can be done by adding two lines to the
2445 =for comment openssl_section:XXX
2447 The blank line is mandatory.
2451 *) New arguments -certform, -keyform and -pass for s_client and s_server
2452 to allow alternative format key and certificate files and passphrase
2456 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2457 update associated structures and add various utility functions.
2459 Add new policy related verify parameters, include policy checking in
2460 standard verify code. Enhance 'smime' application with extra parameters
2461 to support policy checking and print out.
2464 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2465 Nehemiah processors. These extensions support AES encryption in hardware
2466 as well as RNG (though RNG support is currently disabled).
2467 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2469 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2472 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2473 [Andy Polyakov and a number of other people]
2475 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2476 implementation contributed by IBM.
2477 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2479 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2480 exponent rather than 'unsigned long'. There is a corresponding change to
2481 the new 'rsa_keygen' element of the RSA_METHOD structure.
2482 [Jelte Jansen, Geoff Thorpe]
2484 *) Functionality for creating the initial serial number file is now
2485 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2487 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2488 number file to 1, which is bound to cause problems. To avoid
2489 the problems while respecting compatibility between different 0.9.7
2490 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2491 CA.pl for serial number initialization. With the new release 0.9.8,
2492 we can fix the problem directly in the 'ca' utility.)
2495 *) Reduced header interdepencies by declaring more opaque objects in
2496 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2497 give fewer recursive includes, which could break lazy source code - so
2498 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2499 developers should define this symbol when building and using openssl to
2500 ensure they track the recommended behaviour, interfaces, [etc], but
2501 backwards-compatible behaviour prevails when this isn't defined.
2504 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2507 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2508 This will generate a random key of the appropriate length based on the
2509 cipher context. The EVP_CIPHER can provide its own random key generation
2510 routine to support keys of a specific form. This is used in the des and
2511 3des routines to generate a key of the correct parity. Update S/MIME
2512 code to use new functions and hence generate correct parity DES keys.
2513 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2514 valid (weak or incorrect parity).
2517 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2518 as looking them up. This is useful when the verified structure may contain
2519 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2520 present unless the new PKCS7_NO_CRL flag is asserted.
2523 *) Extend ASN1 oid configuration module. It now additionally accepts the
2526 shortName = some long name, 1.2.3.4
2529 *) Reimplemented the BN_CTX implementation. There is now no more static
2530 limitation on the number of variables it can handle nor the depth of the
2531 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2532 information can now expand as required, and rather than having a single
2533 static array of bignums, BN_CTX now uses a linked-list of such arrays
2534 allowing it to expand on demand whilst maintaining the usefulness of
2535 BN_CTX's "bundling".
2538 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2539 to allow all RSA operations to function using a single BN_CTX.
2542 *) Preliminary support for certificate policy evaluation and checking. This
2543 is initially intended to pass the tests outlined in "Conformance Testing
2544 of Relying Party Client Certificate Path Processing Logic" v1.07.
2547 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2548 remained unused and not that useful. A variety of other little bignum
2549 tweaks and fixes have also been made continuing on from the audit (see
2553 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2554 associated ASN1, EVP and SSL functions and old ASN1 macros.
2557 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2558 and this should never fail. So the return value from the use of
2559 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2560 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2563 *) BN_CTX_get() should return zero-valued bignums, providing the same
2564 initialised value as BN_new().
2565 [Geoff Thorpe, suggested by Ulf Möller]
2567 *) Support for inhibitAnyPolicy certificate extension.
2570 *) An audit of the BIGNUM code is underway, for which debugging code is
2571 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2572 is considered valid when processing BIGNUMs, and causes execution to
2573 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2574 further steps are taken to deliberately pollute unused data in BIGNUM
2575 structures to try and expose faulty code further on. For now, openssl will
2576 (in its default mode of operation) continue to tolerate the inconsistent
2577 forms that it has tolerated in the past, but authors and packagers should
2578 consider trying openssl and their own applications when compiled with
2579 these debugging symbols defined. It will help highlight potential bugs in
2580 their own code, and will improve the test coverage for OpenSSL itself. At
2581 some point, these tighter rules will become openssl's default to improve
2582 maintainability, though the assert()s and other overheads will remain only
2583 in debugging configurations. See bn.h for more details.
2584 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2586 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2587 that can only be obtained through BN_CTX_new() (which implicitly
2588 initialises it). The presence of this function only made it possible
2589 to overwrite an existing structure (and cause memory leaks).
2592 *) Because of the callback-based approach for implementing LHASH as a
2593 template type, lh_insert() adds opaque objects to hash-tables and
2594 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2595 to clean up those corresponding objects before destroying the hash table
2596 (and losing the object pointers). So some over-zealous constifications in
2597 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2598 objects as "const" and the lh_doall[_arg] callback wrappers are not
2599 prototyped to have "const" restrictions on the object pointers they are
2600 given (and so aren't required to cast them away any more).
2603 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2604 (speed) prefers to use its own implementation. The two implementations
2605 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2606 its object type properly exposed (MS_TM) instead of casting to/from "char
2607 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2608 aren't necessarily the greatest nomenclatures - but this is what was used
2609 internally to the implementation so I've used that for now.
2612 *) Ensure that deprecated functions do not get compiled when
2613 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2614 the self-tests were still using deprecated key-generation functions so
2615 these have been updated also.
2618 *) Reorganise PKCS#7 code to separate the digest location functionality
2619 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2620 New function PKCS7_set_digest() to set the digest type for PKCS#7
2621 digestedData type. Add additional code to correctly generate the
2622 digestedData type and add support for this type in PKCS7 initialization
2626 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2627 structure of type "other".
2630 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2631 sure the loop does correctly stop and breaking ("division by zero")
2632 modulus operations are not performed. The (pre-generated) prime
2633 table crypto/bn/bn_prime.h was already correct, but it could not be
2634 re-generated on some platforms because of the "division by zero"
2635 situation in the script.
2636 [Ralf S. Engelschall]
2638 *) Update support for ECC-based TLS ciphersuites according to
2639 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2640 SHA-1 now is only used for "small" curves (where the
2641 representation of a field element takes up to 24 bytes); for
2642 larger curves, the field element resulting from ECDH is directly
2643 used as premaster secret.
2644 [Douglas Stebila (Sun Microsystems Laboratories)]
2646 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2647 curve secp160r1 to the tests.
2648 [Douglas Stebila (Sun Microsystems Laboratories)]
2650 *) Add the possibility to load symbols globally with DSO.
2651 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2653 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2654 control of the error stack.
2657 *) Add support for STORE in ENGINE.
2660 *) Add the STORE type. The intention is to provide a common interface
2661 to certificate and key stores, be they simple file-based stores, or
2662 HSM-type store, or LDAP stores, or...
2663 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2666 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2667 pass a list of arguments to any function as well as provide a way
2668 for a function to pass data back to the caller.
2671 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2672 works like BUF_strdup() but can be used to duplicate a portion of
2673 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2677 *) Add the function sk_find_ex() which works like sk_find(), but will
2678 return an index to an element even if an exact match couldn't be
2679 found. The index is guaranteed to point at the element where the
2680 searched-for key would be inserted to preserve sorting order.
2683 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2684 takes an extra flags argument for optional functionality. Currently,
2685 the following flags are defined:
2687 OBJ_BSEARCH_VALUE_ON_NOMATCH
2688 This one gets OBJ_bsearch_ex() to return a pointer to the first
2689 element where the comparing function returns a negative or zero
2692 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2693 This one gets OBJ_bsearch_ex() to return a pointer to the first
2694 element where the comparing function returns zero. This is useful
2695 if there are more than one element where the comparing function
2699 *) Make it possible to create self-signed certificates with 'openssl ca'
2700 in such a way that the self-signed certificate becomes part of the
2701 CA database and uses the same mechanisms for serial number generation
2702 as all other certificate signing. The new flag '-selfsign' enables
2703 this functionality. Adapt CA.sh and CA.pl.in.
2706 *) Add functionality to check the public key of a certificate request
2707 against a given private. This is useful to check that a certificate
2708 request can be signed by that key (self-signing).
2711 *) Make it possible to have multiple active certificates with the same
2712 subject in the CA index file. This is done only if the keyword
2713 'unique_subject' is set to 'no' in the main CA section (default
2714 if 'CA_default') of the configuration file. The value is saved
2715 with the database itself in a separate index attribute file,
2716 named like the index file with '.attr' appended to the name.
2719 *) Generate muti valued AVAs using '+' notation in config files for
2723 *) Support for nameConstraints certificate extension.
2726 *) Support for policyConstraints certificate extension.
2729 *) Support for policyMappings certificate extension.
2732 *) Make sure the default DSA_METHOD implementation only uses its
2733 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2734 and change its own handlers to be NULL so as to remove unnecessary
2735 indirection. This lets alternative implementations fallback to the
2736 default implementation more easily.
2739 *) Support for directoryName in GeneralName related extensions
2743 *) Make it possible to link applications using Makefile.shared.
2744 Make that possible even when linking against static libraries!
2747 *) Support for single pass processing for S/MIME signing. This now
2748 means that S/MIME signing can be done from a pipe, in addition
2749 cleartext signing (multipart/signed type) is effectively streaming
2750 and the signed data does not need to be all held in memory.
2752 This is done with a new flag PKCS7_STREAM. When this flag is set
2753 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2754 is done after the data is output (and digests calculated) in
2755 SMIME_write_PKCS7().
2758 *) Add full support for -rpath/-R, both in shared libraries and
2759 applications, at least on the platforms where it's known how
2763 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2764 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2765 will now compute a table of multiples of the generator that
2766 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2767 faster (notably in the case of a single point multiplication,
2768 scalar * generator).
2769 [Nils Larsch, Bodo Moeller]
2771 *) IPv6 support for certificate extensions. The various extensions
2772 which use the IP:a.b.c.d can now take IPv6 addresses using the
2773 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2777 *) Added an ENGINE that implements RSA by performing private key
2778 exponentiations with the GMP library. The conversions to and from
2779 GMP's mpz_t format aren't optimised nor are any montgomery forms
2780 cached, and on x86 it appears OpenSSL's own performance has caught up.
2781 However there are likely to be other architectures where GMP could
2782 provide a boost. This ENGINE is not built in by default, but it can be
2783 specified at Configure time and should be accompanied by the necessary
2784 linker additions, eg;
2785 ./config -DOPENSSL_USE_GMP -lgmp
2788 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2789 testing availability of engines with "-t" - the old behaviour is
2790 produced by increasing the feature's verbosity with "-tt".
2793 *) ECDSA routines: under certain error conditions uninitialized BN objects
2794 could be freed. Solution: make sure initialization is performed early
2795 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2799 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2800 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2801 software implementations. For DSA and DH, parameter generation can
2802 also be overriden by providing the appropriate method callbacks.
2805 *) Change the "progress" mechanism used in key-generation and
2806 primality testing to functions that take a new BN_GENCB pointer in
2807 place of callback/argument pairs. The new API functions have "_ex"
2808 postfixes and the older functions are reimplemented as wrappers for
2809 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2810 declarations of the old functions to help (graceful) attempts to
2811 migrate to the new functions. Also, the new key-generation API
2812 functions operate on a caller-supplied key-structure and return
2813 success/failure rather than returning a key or NULL - this is to
2814 help make "keygen" another member function of RSA_METHOD etc.
2816 Example for using the new callback interface:
2818 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2822 BN_GENCB_set(&my_cb, my_callback, my_arg);
2824 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2825 /* For the meaning of a, b in calls to my_callback(), see the
2826 * documentation of the function that calls the callback.
2827 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2828 * my_callback should return 1 if it wants BN_is_prime_ex()
2829 * to continue, or 0 to stop.
2834 *) Change the ZLIB compression method to be stateful, and make it
2835 available to TLS with the number defined in
2836 draft-ietf-tls-compression-04.txt.
2839 *) Add the ASN.1 structures and functions for CertificatePair, which
2840 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2842 CertificatePair ::= SEQUENCE {
2843 forward [0] Certificate OPTIONAL,
2844 reverse [1] Certificate OPTIONAL,
2845 -- at least one of the pair shall be present -- }
2847 Also implement the PEM functions to read and write certificate
2848 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2850 This needed to be defined, mostly for the sake of the LDAP
2851 attribute crossCertificatePair, but may prove useful elsewhere as
2855 *) Make it possible to inhibit symlinking of shared libraries in
2856 Makefile.shared, for Cygwin's sake.
2859 *) Extend the BIGNUM API by creating a function
2860 void BN_set_negative(BIGNUM *a, int neg);
2861 and a macro that behave like
2862 int BN_is_negative(const BIGNUM *a);
2864 to avoid the need to access 'a->neg' directly in applications.
2867 *) Implement fast modular reduction for pseudo-Mersenne primes
2868 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2869 EC_GROUP_new_curve_GFp() will now automatically use this
2871 [Nils Larsch <nla@trustcenter.de>]
2873 *) Add new lock type (CRYPTO_LOCK_BN).
2876 *) Change the ENGINE framework to automatically load engines
2877 dynamically from specific directories unless they could be
2878 found to already be built in or loaded. Move all the
2879 current engines except for the cryptodev one to a new
2881 The engines in engines/ are built as shared libraries if
2882 the "shared" options was given to ./Configure or ./config.
2883 Otherwise, they are inserted in libcrypto.a.
2884 /usr/local/ssl/engines is the default directory for dynamic
2885 engines, but that can be overriden at configure time through
2886 the usual use of --prefix and/or --openssldir, and at run
2887 time with the environment variable OPENSSL_ENGINES.
2888 [Geoff Thorpe and Richard Levitte]
2890 *) Add Makefile.shared, a helper makefile to build shared
2891 libraries. Addapt Makefile.org.
2894 *) Add version info to Win32 DLLs.
2895 [Peter 'Luna' Runestig" <peter@runestig.com>]
2897 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2898 can be added using this API to created arbitrary PKCS#12
2899 files while avoiding the low level API.
2901 New options to PKCS12_create(), key or cert can be NULL and
2902 will then be omitted from the output file. The encryption
2903 algorithm NIDs can be set to -1 for no encryption, the mac
2904 iteration count can be set to 0 to omit the mac.
2906 Enhance pkcs12 utility by making the -nokeys and -nocerts
2907 options work when creating a PKCS#12 file. New option -nomac
2908 to omit the mac, NONE can be set for an encryption algorithm.
2909 New code is modified to use the enhanced PKCS12_create()
2910 instead of the low level API.
2913 *) Extend ASN1 encoder to support indefinite length constructed
2914 encoding. This can output sequences tags and octet strings in
2915 this form. Modify pk7_asn1.c to support indefinite length
2916 encoding. This is experimental and needs additional code to
2917 be useful, such as an ASN1 bio and some enhanced streaming
2920 Extend template encode functionality so that tagging is passed
2921 down to the template encoder.
2924 *) Let 'openssl req' fail if an argument to '-newkey' is not
2925 recognized instead of using RSA as a default.
2928 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2929 As these are not official, they are not included in "ALL";
2930 the "ECCdraft" ciphersuite group alias can be used to select them.
2931 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2933 *) Add ECDH engine support.
2934 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2936 *) Add ECDH in new directory crypto/ecdh/.
2937 [Douglas Stebila (Sun Microsystems Laboratories)]
2939 *) Let BN_rand_range() abort with an error after 100 iterations
2940 without success (which indicates a broken PRNG).
2943 *) Change BN_mod_sqrt() so that it verifies that the input value
2944 is really the square of the return value. (Previously,
2945 BN_mod_sqrt would show GIGO behaviour.)
2948 *) Add named elliptic curves over binary fields from X9.62, SECG,
2949 and WAP/WTLS; add OIDs that were still missing.
2951 [Sheueling Chang Shantz and Douglas Stebila
2952 (Sun Microsystems Laboratories)]
2954 *) Extend the EC library for elliptic curves over binary fields
2955 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2958 EC_GF2m_simple_method
2962 EC_GROUP_new_curve_GF2m
2963 EC_GROUP_set_curve_GF2m
2964 EC_GROUP_get_curve_GF2m
2965 EC_POINT_set_affine_coordinates_GF2m
2966 EC_POINT_get_affine_coordinates_GF2m
2967 EC_POINT_set_compressed_coordinates_GF2m
2969 Point compression for binary fields is disabled by default for
2970 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2973 As binary polynomials are represented as BIGNUMs, various members
2974 of the EC_GROUP and EC_POINT data structures can be shared
2975 between the implementations for prime fields and binary fields;
2976 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2977 are essentially identical to their ..._GFp counterparts.
2978 (For simplicity, the '..._GFp' prefix has been dropped from
2979 various internal method names.)
2981 An internal 'field_div' method (similar to 'field_mul' and
2982 'field_sqr') has been added; this is used only for binary fields.
2984 [Sheueling Chang Shantz and Douglas Stebila
2985 (Sun Microsystems Laboratories)]
2987 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2988 through methods ('mul', 'precompute_mult').
2990 The generic implementations (now internally called 'ec_wNAF_mul'
2991 and 'ec_wNAF_precomputed_mult') remain the default if these
2992 methods are undefined.
2994 [Sheueling Chang Shantz and Douglas Stebila
2995 (Sun Microsystems Laboratories)]
2997 *) New function EC_GROUP_get_degree, which is defined through
2998 EC_METHOD. For curves over prime fields, this returns the bit
2999 length of the modulus.
3001 [Sheueling Chang Shantz and Douglas Stebila
3002 (Sun Microsystems Laboratories)]
3004 *) New functions EC_GROUP_dup, EC_POINT_dup.
3005 (These simply call ..._new and ..._copy).
3007 [Sheueling Chang Shantz and Douglas Stebila
3008 (Sun Microsystems Laboratories)]
3010 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3011 Polynomials are represented as BIGNUMs (where the sign bit is not
3012 used) in the following functions [macros]:
3015 BN_GF2m_sub [= BN_GF2m_add]
3016 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3017 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3018 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3020 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3021 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3022 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3023 BN_GF2m_cmp [= BN_ucmp]
3025 (Note that only the 'mod' functions are actually for fields GF(2^m).
3026 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3028 For some functions, an the irreducible polynomial defining a
3029 field can be given as an 'unsigned int[]' with strictly
3030 decreasing elements giving the indices of those bits that are set;
3031 i.e., p[] represents the polynomial
3032 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3034 p[0] > p[1] > ... > p[k] = 0.
3035 This applies to the following functions:
3040 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3041 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3043 BN_GF2m_mod_sqrt_arr
3044 BN_GF2m_mod_solve_quad_arr
3048 Conversion can be performed by the following functions:
3053 bntest.c has additional tests for binary polynomial arithmetic.
3055 Two implementations for BN_GF2m_mod_div() are available.
3056 The default algorithm simply uses BN_GF2m_mod_inv() and
3057 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3058 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3059 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3061 [Sheueling Chang Shantz and Douglas Stebila
3062 (Sun Microsystems Laboratories)]
3064 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3065 functionality is disabled at compile-time.
3066 [Douglas Stebila <douglas.stebila@sun.com>]
3068 *) Change default behaviour of 'openssl asn1parse' so that more
3069 information is visible when viewing, e.g., a certificate:
3071 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3072 mode the content of non-printable OCTET STRINGs is output in a
3073 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3074 avoid the appearance of a printable string.
3075 [Nils Larsch <nla@trustcenter.de>]
3077 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3079 EC_GROUP_set_asn1_flag()
3080 EC_GROUP_get_asn1_flag()
3081 EC_GROUP_set_point_conversion_form()
3082 EC_GROUP_get_point_conversion_form()
3083 These control ASN1 encoding details:
3084 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3085 has been set to OPENSSL_EC_NAMED_CURVE.
3086 - Points are encoded in uncompressed form by default; options for
3087 asn1_for are as for point2oct, namely
3088 POINT_CONVERSION_COMPRESSED
3089 POINT_CONVERSION_UNCOMPRESSED
3090 POINT_CONVERSION_HYBRID
3092 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3095 EC_GROUP_get0_seed()
3096 EC_GROUP_get_seed_len()
3097 This is used only for ASN1 purposes (so far).
3098 [Nils Larsch <nla@trustcenter.de>]
3100 *) Add 'field_type' member to EC_METHOD, which holds the NID
3101 of the appropriate field type OID. The new function
3102 EC_METHOD_get_field_type() returns this value.
3103 [Nils Larsch <nla@trustcenter.de>]
3108 EC_POINT_point2hex()
3109 EC_POINT_hex2point()
3110 providing useful interfaces to EC_POINT_point2oct() and
3111 EC_POINT_oct2point().
3112 [Nils Larsch <nla@trustcenter.de>]
3114 *) Change internals of the EC library so that the functions
3115 EC_GROUP_set_generator()
3116 EC_GROUP_get_generator()
3117 EC_GROUP_get_order()
3118 EC_GROUP_get_cofactor()
3119 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3120 to methods, which would lead to unnecessary code duplication when
3121 adding different types of curves.
3122 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3124 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3125 arithmetic, and such that modified wNAFs are generated
3126 (which avoid length expansion in many cases).
3129 *) Add a function EC_GROUP_check_discriminant() (defined via
3130 EC_METHOD) that verifies that the curve discriminant is non-zero.
3132 Add a function EC_GROUP_check() that makes some sanity tests
3133 on a EC_GROUP, its generator and order. This includes
3134 EC_GROUP_check_discriminant().
3135 [Nils Larsch <nla@trustcenter.de>]
3137 *) Add ECDSA in new directory crypto/ecdsa/.
3139 Add applications 'openssl ecparam' and 'openssl ecdsa'
3140 (these are based on 'openssl dsaparam' and 'openssl dsa').
3142 ECDSA support is also included in various other files across the
3143 library. Most notably,
3144 - 'openssl req' now has a '-newkey ecdsa:file' option;
3145 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3146 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3147 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3148 them suitable for ECDSA where domain parameters must be
3149 extracted before the specific public key;
3150 - ECDSA engine support has been added.
3151 [Nils Larsch <nla@trustcenter.de>]
3153 *) Include some named elliptic curves, and add OIDs from X9.62,
3154 SECG, and WAP/WTLS. Each curve can be obtained from the new
3156 EC_GROUP_new_by_curve_name(),
3157 and the list of available named curves can be obtained with
3158 EC_get_builtin_curves().
3159 Also add a 'curve_name' member to EC_GROUP objects, which can be
3161 EC_GROUP_set_curve_name()
3162 EC_GROUP_get_curve_name()
3163 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3165 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3166 was actually never needed) and in BN_mul(). The removal in BN_mul()
3167 required a small change in bn_mul_part_recursive() and the addition
3168 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3169 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3170 bn_sub_words() and bn_add_words() except they take arrays with
3174 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3176 *) Cleanse PEM buffers before freeing them since they may contain
3178 [Benjamin Bennett <ben@psc.edu>]
3180 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3181 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3182 authentication-only ciphersuites.
3185 *) Since AES128 and AES256 share a single mask bit in the logic of
3186 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3187 kludge to work properly if AES128 is available and AES256 isn't.
3190 *) Expand security boundary to match 1.1.1 module.
3193 *) Remove redundant features: hash file source, editing of test vectors
3194 modify fipsld to use external fips_premain.c signature.
3197 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3198 run algorithm test programs.
3201 *) Make algorithm test programs more tolerant of whitespace.
3204 *) Have SSL/TLS server implementation tolerate "mismatched" record
3205 protocol version while receiving ClientHello even if the
3206 ClientHello is fragmented. (The server can't insist on the
3207 particular protocol version it has chosen before the ServerHello
3208 message has informed the client about his choice.)
3211 *) Load error codes if they are not already present instead of using a
3212 static variable. This allows them to be cleanly unloaded and reloaded.
3215 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3217 *) Introduce limits to prevent malicious keys being able to
3218 cause a denial of service. (CVE-2006-2940)
3219 [Steve Henson, Bodo Moeller]
3221 *) Fix ASN.1 parsing of certain invalid structures that can result
3222 in a denial of service. (CVE-2006-2937) [Steve Henson]
3224 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3225 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3227 *) Fix SSL client code which could crash if connecting to a
3228 malicious SSLv2 server. (CVE-2006-4343)
3229 [Tavis Ormandy and Will Drewry, Google Security Team]
3231 *) Change ciphersuite string processing so that an explicit
3232 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3233 will no longer include "AES128-SHA"), and any other similar
3234 ciphersuite (same bitmap) from *other* protocol versions (so that
3235 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3236 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3237 changes from 0.9.8b and 0.9.8d.
3240 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3242 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3243 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3245 *) Change the Unix randomness entropy gathering to use poll() when
3246 possible instead of select(), since the latter has some
3247 undesirable limitations.
3248 [Darryl Miles via Richard Levitte and Bodo Moeller]
3250 *) Disable rogue ciphersuites:
3252 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3253 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3254 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3256 The latter two were purportedly from
3257 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3260 Also deactive the remaining ciphersuites from
3261 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3262 unofficial, and the ID has long expired.
3265 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3266 dual-core machines) and other potential thread-safety issues.
3269 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3271 *) Adapt fipsld and the build system to link against the validated FIPS
3272 module in FIPS mode.
3275 *) Fixes for VC++ 2005 build under Windows.
3278 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3279 from a Windows bash shell such as MSYS. It is autodetected from the
3280 "config" script when run from a VC++ environment. Modify standard VC++
3281 build to use fipscanister.o from the GNU make build.
3284 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3286 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3287 The value now differs depending on if you build for FIPS or not.
3288 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3289 safely run with a non-FIPSed libcrypto, as it may crash because of
3290 the difference induced by this change.
3293 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3295 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3296 (part of SSL_OP_ALL). This option used to disable the
3297 countermeasure against man-in-the-middle protocol-version
3298 rollback in the SSL 2.0 server implementation, which is a bad
3299 idea. (CVE-2005-2969)
3301 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3302 for Information Security, National Institute of Advanced Industrial
3303 Science and Technology [AIST], Japan)]
3305 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3306 mainly for FIPS compliance and not fully integrated at this stage.
3309 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3310 the exponentiation using a fixed-length exponent. (Otherwise,
3311 the information leaked through timing could expose the secret key
3312 after many signatures; cf. Bleichenbacher's attack on DSA with
3316 *) Make a new fixed-window mod_exp implementation the default for
3317 RSA, DSA, and DH private-key operations so that the sequence of
3318 squares and multiplies and the memory access pattern are
3319 independent of the particular secret key. This will mitigate
3320 cache-timing and potential related attacks.
3322 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3323 and this is automatically used by BN_mod_exp_mont() if the new flag
3324 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3325 will use this BN flag for private exponents unless the flag
3326 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3327 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3329 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3331 *) Change the client implementation for SSLv23_method() and
3332 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3333 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3334 (Previously, the SSL 2.0 backwards compatible Client Hello
3335 message format would be used even with SSL_OP_NO_SSLv2.)
3338 *) Add support for smime-type MIME parameter in S/MIME messages which some
3342 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3343 a threadsafe manner. Modify rsa code to use new function and add calls
3344 to dsa and dh code (which had race conditions before).
3347 *) Include the fixed error library code in the C error file definitions
3348 instead of fixing them up at runtime. This keeps the error code
3349 structures constant.
3352 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3354 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3357 *) Fixes for newer kerberos headers. NB: the casts are needed because
3358 the 'length' field is signed on one version and unsigned on another
3359 with no (?) obvious way to tell the difference, without these VC++
3360 complains. Also the "definition" of FAR (blank) is no longer included
3361 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3362 some needed definitions.
3365 *) Undo Cygwin change.
3368 *) Added support for proxy certificates according to RFC 3820.
3369 Because they may be a security thread to unaware applications,
3370 they must be explicitely allowed in run-time. See
3371 docs/HOWTO/proxy_certificates.txt for further information.
3374 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3376 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3377 server and client random values. Previously
3378 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3379 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3381 This change has negligible security impact because:
3383 1. Server and client random values still have 24 bytes of pseudo random
3386 2. Server and client random values are sent in the clear in the initial
3389 3. The master secret is derived using the premaster secret (48 bytes in
3390 size for static RSA ciphersuites) as well as client server and random
3393 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3396 [Stephen Henson, reported by UK NISCC]
3398 *) Use Windows randomness collection on Cygwin.
3401 *) Fix hang in EGD/PRNGD query when communication socket is closed
3402 prematurely by EGD/PRNGD.
3403 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3405 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3408 *) Back-port of selected performance improvements from development
3409 branch, as well as improved support for PowerPC platforms.
3412 *) Add lots of checks for memory allocation failure, error codes to indicate
3413 failure and freeing up memory if a failure occurs.
3414 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3416 *) Add new -passin argument to dgst.
3419 *) Perform some character comparisons of different types in X509_NAME_cmp:
3420 this is needed for some certificates that reencode DNs into UTF8Strings
3421 (in violation of RFC3280) and can't or wont issue name rollover
3425 *) Make an explicit check during certificate validation to see that
3426 the CA setting in each certificate on the chain is correct. As a
3427 side effect always do the following basic checks on extensions,
3428 not just when there's an associated purpose to the check:
3430 - if there is an unhandled critical extension (unless the user
3431 has chosen to ignore this fault)
3432 - if the path length has been exceeded (if one is set at all)
3433 - that certain extensions fit the associated purpose (if one has
3437 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3439 *) Avoid a race condition when CRLs are checked in a multi threaded
3440 environment. This would happen due to the reordering of the revoked
3441 entries during signature checking and serial number lookup. Now the
3442 encoding is cached and the serial number sort performed under a lock.
3443 Add new STACK function sk_is_sorted().
3446 *) Add Delta CRL to the extension code.
3449 *) Various fixes to s3_pkt.c so alerts are sent properly.
3450 [David Holmes <d.holmes@f5.com>]
3452 *) Reduce the chances of duplicate issuer name and serial numbers (in
3453 violation of RFC3280) using the OpenSSL certificate creation utilities.
3454 This is done by creating a random 64 bit value for the initial serial
3455 number when a serial number file is created or when a self signed
3456 certificate is created using 'openssl req -x509'. The initial serial
3457 number file is created using 'openssl x509 -next_serial' in CA.pl
3458 rather than being initialized to 1.
3461 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3463 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3464 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3465 [Joe Orton, Steve Henson]
3467 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3469 [Joe Orton, Steve Henson]
3471 *) Make it possible to have multiple active certificates with the same
3472 subject in the CA index file. This is done only if the keyword
3473 'unique_subject' is set to 'no' in the main CA section (default
3474 if 'CA_default') of the configuration file. The value is saved
3475 with the database itself in a separate index attribute file,
3476 named like the index file with '.attr' appended to the name.
3479 *) X509 verify fixes. Disable broken certificate workarounds when
3480 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3481 keyUsage extension present. Don't accept CRLs with unhandled critical
3482 extensions: since verify currently doesn't process CRL extensions this
3483 rejects a CRL with *any* critical extensions. Add new verify error codes
3487 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3488 A clarification of RFC2560 will require the use of OCTET STRINGs and
3489 some implementations cannot handle the current raw format. Since OpenSSL
3490 copies and compares OCSP nonces as opaque blobs without any attempt at
3491 parsing them this should not create any compatibility issues.
3494 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3495 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3496 this HMAC (and other) operations are several times slower than OpenSSL
3500 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3501 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3503 *) Use the correct content when signing type "other".
3506 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3508 *) Fix various bugs revealed by running the NISCC test suite:
3510 Stop out of bounds reads in the ASN1 code when presented with
3511 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3513 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3515 If verify callback ignores invalid public key errors don't try to check
3516 certificate signature with the NULL public key.
3520 *) New -ignore_err option in ocsp application to stop the server
3521 exiting on the first error in a request.
3524 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3525 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3529 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3530 extra data after the compression methods not only for TLS 1.0
3531 but also for SSL 3.0 (as required by the specification).
3532 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3534 *) Change X509_certificate_type() to mark the key as exported/exportable
3535 when it's 512 *bits* long, not 512 bytes.
3538 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3539 blocks during encryption.
3542 *) Various fixes to base64 BIO and non blocking I/O. On write
3543 flushes were not handled properly if the BIO retried. On read
3544 data was not being buffered properly and had various logic bugs.
3545 This also affects blocking I/O when the data being decoded is a
3549 *) Various S/MIME bugfixes and compatibility changes:
3550 output correct application/pkcs7 MIME type if
3551 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3552 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3553 of files as .eml work). Correctly handle very long lines in MIME
3557 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3559 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3560 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3561 a protocol version number mismatch like a decryption error
3562 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3565 *) Turn on RSA blinding by default in the default implementation
3566 to avoid a timing attack. Applications that don't want it can call
3567 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3568 They would be ill-advised to do so in most cases.
3569 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3571 *) Change RSA blinding code so that it works when the PRNG is not
3572 seeded (in this case, the secret RSA exponent is abused as
3573 an unpredictable seed -- if it is not unpredictable, there
3574 is no point in blinding anyway). Make RSA blinding thread-safe
3575 by remembering the creator's thread ID in rsa->blinding and
3576 having all other threads use local one-time blinding factors
3577 (this requires more computation than sharing rsa->blinding, but
3578 avoids excessive locking; and if an RSA object is not shared
3579 between threads, blinding will still be very fast).
3582 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3583 ENGINE as defaults for all supported algorithms irrespective of
3584 the 'flags' parameter. 'flags' is now honoured, so applications
3585 should make sure they are passing it correctly.
3588 *) Target "mingw" now allows native Windows code to be generated in
3589 the Cygwin environment as well as with the MinGW compiler.
3592 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3594 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3595 via timing by performing a MAC computation even if incorrrect
3596 block cipher padding has been found. This is a countermeasure
3597 against active attacks where the attacker has to distinguish
3598 between bad padding and a MAC verification error. (CVE-2003-0078)
3600 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3601 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3602 Martin Vuagnoux (EPFL, Ilion)]
3604 *) Make the no-err option work as intended. The intention with no-err
3605 is not to have the whole error stack handling routines removed from
3606 libcrypto, it's only intended to remove all the function name and
3607 reason texts, thereby removing some of the footprint that may not
3608 be interesting if those errors aren't displayed anyway.
3610 NOTE: it's still possible for any application or module to have it's
3611 own set of error texts inserted. The routines are there, just not
3612 used by default when no-err is given.
3615 *) Add support for FreeBSD on IA64.
3616 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3618 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3619 Kerberos function mit_des_cbc_cksum(). Before this change,
3620 the value returned by DES_cbc_cksum() was like the one from
3621 mit_des_cbc_cksum(), except the bytes were swapped.
3622 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3624 *) Allow an application to disable the automatic SSL chain building.
3625 Before this a rather primitive chain build was always performed in
3626 ssl3_output_cert_chain(): an application had no way to send the
3627 correct chain if the automatic operation produced an incorrect result.
3629 Now the chain builder is disabled if either:
3631 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3633 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3635 The reasoning behind this is that an application would not want the
3636 auto chain building to take place if extra chain certificates are
3637 present and it might also want a means of sending no additional
3638 certificates (for example the chain has two certificates and the
3642 *) Add the possibility to build without the ENGINE framework.
3643 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3645 *) Under Win32 gmtime() can return NULL: check return value in
3646 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3649 *) DSA routines: under certain error conditions uninitialized BN objects
3650 could be freed. Solution: make sure initialization is performed early
3651 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3652 Nils Larsch <nla@trustcenter.de> via PR#459)
3655 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3656 checked on reconnect on the client side, therefore session resumption
3657 could still fail with a "ssl session id is different" error. This
3658 behaviour is masked when SSL_OP_ALL is used due to
3659 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3660 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3661 followup to PR #377.
3664 *) IA-32 assembler support enhancements: unified ELF targets, support
3665 for SCO/Caldera platforms, fix for Cygwin shared build.
3668 *) Add support for FreeBSD on sparc64. As a consequence, support for
3669 FreeBSD on non-x86 processors is separate from x86 processors on
3670 the config script, much like the NetBSD support.
3671 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3673 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3675 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3678 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3679 code (06) was taken as the first octet of the session ID and the last
3680 octet was ignored consequently. As a result SSLv2 client side session
3681 caching could not have worked due to the session ID mismatch between
3683 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3687 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3688 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3692 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3693 seems that in spite of existing for more than a year, many application
3694 author have done nothing to provide the necessary callbacks, which
3695 means that this particular engine will not work properly anywhere.
3696 This is a very unfortunate situation which forces us, in the name
3697 of usability, to give the hw_ncipher.c a static lock, which is part
3699 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3700 appear in 0.9.8 or later. We EXPECT application authors to have
3701 dealt properly with this when 0.9.8 is released (unless we actually
3702 make such changes in the libcrypto locking code that changes will
3703 have to be made anyway).
3706 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3707 octets have been read, EOF or an error occurs. Without this change
3708 some truncated ASN1 structures will not produce an error.
3711 *) Disable Heimdal support, since it hasn't been fully implemented.
3712 Still give the possibility to force the use of Heimdal, but with
3713 warnings and a request that patches get sent to openssl-dev.
3716 *) Add the VC-CE target, introduce the WINCE sysname, and add
3717 INSTALL.WCE and appropriate conditionals to make it build.
3718 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3720 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3721 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3722 edit numbers of the version.
3723 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3725 *) Introduce safe string copy and catenation functions
3726 (BUF_strlcpy() and BUF_strlcat()).
3727 [Ben Laurie (CHATS) and Richard Levitte]
3729 *) Avoid using fixed-size buffers for one-line DNs.
3730 [Ben Laurie (CHATS)]
3732 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3733 resizing buffers containing secrets, and use where appropriate.
3734 [Ben Laurie (CHATS)]
3736 *) Avoid using fixed size buffers for configuration file location.
3737 [Ben Laurie (CHATS)]
3739 *) Avoid filename truncation for various CA files.
3740 [Ben Laurie (CHATS)]
3742 *) Use sizeof in preference to magic numbers.
3743 [Ben Laurie (CHATS)]
3745 *) Avoid filename truncation in cert requests.
3746 [Ben Laurie (CHATS)]
3748 *) Add assertions to check for (supposedly impossible) buffer
3750 [Ben Laurie (CHATS)]
3752 *) Don't cache truncated DNS entries in the local cache (this could
3753 potentially lead to a spoofing attack).
3754 [Ben Laurie (CHATS)]
3756 *) Fix various buffers to be large enough for hex/decimal
3757 representations in a platform independent manner.
3758 [Ben Laurie (CHATS)]
3760 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3761 resizing buffers containing secrets, and use where appropriate.
3762 [Ben Laurie (CHATS)]
3764 *) Add BIO_indent() to avoid much slightly worrying code to do
3766 [Ben Laurie (CHATS)]
3768 *) Convert sprintf()/BIO_puts() to BIO_printf().
3769 [Ben Laurie (CHATS)]
3771 *) buffer_gets() could terminate with the buffer only half
3773 [Ben Laurie (CHATS)]
3775 *) Add assertions to prevent user-supplied crypto functions from
3776 overflowing internal buffers by having large block sizes, etc.
3777 [Ben Laurie (CHATS)]
3779 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3781 [Ben Laurie (CHATS)]
3783 *) Eliminate unused copy of key in RC4.
3784 [Ben Laurie (CHATS)]
3786 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3787 [Ben Laurie (CHATS)]
3789 *) Fix off-by-one error in EGD path.
3790 [Ben Laurie (CHATS)]
3792 *) If RANDFILE path is too long, ignore instead of truncating.
3793 [Ben Laurie (CHATS)]
3795 *) Eliminate unused and incorrectly sized X.509 structure
3797 [Ben Laurie (CHATS)]
3799 *) Eliminate unused and dangerous function knumber().
3800 [Ben Laurie (CHATS)]
3802 *) Eliminate unused and dangerous structure, KSSL_ERR.
3803 [Ben Laurie (CHATS)]
3805 *) Protect against overlong session ID context length in an encoded
3806 session object. Since these are local, this does not appear to be
3808 [Ben Laurie (CHATS)]
3810 *) Change from security patch (see 0.9.6e below) that did not affect
3811 the 0.9.6 release series:
3813 Remote buffer overflow in SSL3 protocol - an attacker could
3814 supply an oversized master key in Kerberos-enabled versions.
3816 [Ben Laurie (CHATS)]
3818 *) Change the SSL kerb5 codes to match RFC 2712.
3821 *) Make -nameopt work fully for req and add -reqopt switch.
3822 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3824 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3825 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3827 *) Make sure tests can be performed even if the corresponding algorithms
3828 have been removed entirely. This was also the last step to make
3829 OpenSSL compilable with DJGPP under all reasonable conditions.
3830 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3832 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3833 to allow version independent disabling of normally unselected ciphers,
3834 which may be activated as a side-effect of selecting a single cipher.
3836 (E.g., cipher list string "RSA" enables ciphersuites that are left
3837 out of "ALL" because they do not provide symmetric encryption.
3838 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3839 [Lutz Jaenicke, Bodo Moeller]
3841 *) Add appropriate support for separate platform-dependent build
3842 directories. The recommended way to make a platform-dependent
3843 build directory is the following (tested on Linux), maybe with
3846 # Place yourself outside of the OpenSSL source tree. In
3847 # this example, the environment variable OPENSSL_SOURCE
3848 # is assumed to contain the absolute OpenSSL source directory.
3849 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3850 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3851 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3852 mkdir -p `dirname $F`
3853 ln -s $OPENSSL_SOURCE/$F $F
3856 To be absolutely sure not to disturb the source tree, a "make clean"
3857 is a good thing. If it isn't successfull, don't worry about it,
3858 it probably means the source directory is very clean.
3861 *) Make sure any ENGINE control commands make local copies of string
3862 pointers passed to them whenever necessary. Otherwise it is possible
3863 the caller may have overwritten (or deallocated) the original string
3864 data when a later ENGINE operation tries to use the stored values.
3865 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3867 *) Improve diagnostics in file reading and command-line digests.
3868 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3870 *) Add AES modes CFB and OFB to the object database. Correct an
3871 error in AES-CFB decryption.
3874 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3875 allows existing EVP_CIPHER_CTX structures to be reused after
3876 calling EVP_*Final(). This behaviour is used by encryption
3877 BIOs and some applications. This has the side effect that
3878 applications must explicitly clean up cipher contexts with
3879 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3882 *) Check the values of dna and dnb in bn_mul_recursive before calling
3883 bn_mul_comba (a non zero value means the a or b arrays do not contain
3884 n2 elements) and fallback to bn_mul_normal if either is not zero.
3887 *) Fix escaping of non-ASCII characters when using the -subj option
3888 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3891 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3892 form for "surname", serialNumber has no short form.
3893 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3894 therefore remove "mail" short name for "internet 7".
3895 The OID for unique identifiers in X509 certificates is
3896 x500UniqueIdentifier, not uniqueIdentifier.
3897 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3900 *) Add an "init" command to the ENGINE config module and auto initialize
3901 ENGINEs. Without any "init" command the ENGINE will be initialized
3902 after all ctrl commands have been executed on it. If init=1 the
3903 ENGINE is initailized at that point (ctrls before that point are run
3904 on the uninitialized ENGINE and after on the initialized one). If
3905 init=0 then the ENGINE will not be iniatialized at all.
3908 *) Fix the 'app_verify_callback' interface so that the user-defined
3909 argument is actually passed to the callback: In the
3910 SSL_CTX_set_cert_verify_callback() prototype, the callback
3911 declaration has been changed from
3914 int (*cb)(X509_STORE_CTX *,void *);
3915 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3916 i=s->ctx->app_verify_callback(&ctx)
3917 has been changed into
3918 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3920 To update applications using SSL_CTX_set_cert_verify_callback(),
3921 a dummy argument can be added to their callback functions.
3922 [D. K. Smetters <smetters@parc.xerox.com>]
3924 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3925 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3927 *) Add and OPENSSL_LOAD_CONF define which will cause
3928 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3929 This allows older applications to transparently support certain
3930 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3931 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3932 load the config file and OPENSSL_add_all_algorithms_conf() which will
3933 always load it have also been added.
3936 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3937 Adjust NIDs and EVP layer.
3938 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3940 *) Config modules support in openssl utility.
3942 Most commands now load modules from the config file,
3943 though in a few (such as version) this isn't done
3944 because it couldn't be used for anything.
3946 In the case of ca and req the config file used is
3947 the same as the utility itself: that is the -config
3948 command line option can be used to specify an
3952 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3953 use "openssl_conf" if filename is NULL use default openssl config file.
3956 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3957 config section name. Add a new flag to tolerate a missing config file
3958 and move code to CONF_modules_load_file().
3961 *) Support for crypto accelerator cards from Accelerated Encryption
3962 Processing, www.aep.ie. (Use engine 'aep')
3963 The support was copied from 0.9.6c [engine] and adapted/corrected
3964 to work with the new engine framework.
3965 [AEP Inc. and Richard Levitte]
3967 *) Support for SureWare crypto accelerator cards from Baltimore
3968 Technologies. (Use engine 'sureware')
3969 The support was copied from 0.9.6c [engine] and adapted
3970 to work with the new engine framework.
3973 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3974 make the newer ENGINE framework commands for the CHIL engine work.
3975 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3977 *) Make it possible to produce shared libraries on ReliantUNIX.
3978 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3980 *) Add the configuration target debug-linux-ppro.
3981 Make 'openssl rsa' use the general key loading routines
3982 implemented in apps.c, and make those routines able to
3983 handle the key format FORMAT_NETSCAPE and the variant
3985 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3987 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3988 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3990 *) Add -keyform to rsautl, and document -engine.
3991 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3993 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3994 BIO_R_NO_SUCH_FILE error code rather than the generic
3995 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3998 *) Add new functions
4000 ERR_peek_last_error_line
4001 ERR_peek_last_error_line_data.
4002 These are similar to
4005 ERR_peek_error_line_data,
4006 but report on the latest error recorded rather than the first one
4007 still in the error queue.
4008 [Ben Laurie, Bodo Moeller]
4010 *) default_algorithms option in ENGINE config module. This allows things
4012 default_algorithms = ALL
4013 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4016 *) Prelminary ENGINE config module.
4019 *) New experimental application configuration code.
4022 *) Change the AES code to follow the same name structure as all other
4023 symmetric ciphers, and behave the same way. Move everything to
4024 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4025 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4027 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4028 [Ben Laurie and Theo de Raadt]
4030 *) Add option to output public keys in req command.
4031 [Massimiliano Pala madwolf@openca.org]
4033 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4034 (up to about 10% better than before for P-192 and P-224).
4037 *) New functions/macros
4039 SSL_CTX_set_msg_callback(ctx, cb)
4040 SSL_CTX_set_msg_callback_arg(ctx, arg)
4041 SSL_set_msg_callback(ssl, cb)
4042 SSL_set_msg_callback_arg(ssl, arg)
4044 to request calling a callback function
4046 void cb(int write_p, int version, int content_type,
4047 const void *buf, size_t len, SSL *ssl, void *arg)
4049 whenever a protocol message has been completely received
4050 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4051 protocol version according to which the SSL library interprets
4052 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4053 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4054 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4055 specification (change_cipher_spec(20), alert(21), handshake(22)).
4056 'buf' and 'len' point to the actual message, 'ssl' to the
4057 SSL object, and 'arg' is the application-defined value set by
4058 SSL[_CTX]_set_msg_callback_arg().
4060 'openssl s_client' and 'openssl s_server' have new '-msg' options
4061 to enable a callback that displays all protocol messages.
4064 *) Change the shared library support so shared libraries are built as
4065 soon as the corresponding static library is finished, and thereby get
4066 openssl and the test programs linked against the shared library.
4067 This still only happens when the keyword "shard" has been given to
4068 the configuration scripts.
4070 NOTE: shared library support is still an experimental thing, and
4071 backward binary compatibility is still not guaranteed.
4072 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4074 *) Add support for Subject Information Access extension.
4075 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4077 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4078 additional bytes when new memory had to be allocated, not just
4079 when reusing an existing buffer.
4082 *) New command line and configuration option 'utf8' for the req command.
4083 This allows field values to be specified as UTF8 strings.
4086 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4087 runs for the former and machine-readable output for the latter.
4090 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4091 of the e-mail address in the DN (i.e., it will go into a certificate
4092 extension only). The new configuration file option 'email_in_dn = no'
4093 has the same effect.
4094 [Massimiliano Pala madwolf@openca.org]
4096 *) Change all functions with names starting with des_ to be starting
4097 with DES_ instead. Add wrappers that are compatible with libdes,
4098 but are named _ossl_old_des_*. Finally, add macros that map the
4099 des_* symbols to the corresponding _ossl_old_des_* if libdes
4100 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4101 desired, the des_* symbols will be mapped to DES_*, with one
4104 Since we provide two compatibility mappings, the user needs to
4105 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4106 compatibility is desired. The default (i.e., when that macro
4107 isn't defined) is OpenSSL 0.9.6c compatibility.
4109 There are also macros that enable and disable the support of old
4110 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4111 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4112 are defined, the default will apply: to support the old des routines.
4114 In either case, one must include openssl/des.h to get the correct
4115 definitions. Do not try to just include openssl/des_old.h, that
4118 NOTE: This is a major break of an old API into a new one. Software
4119 authors are encouraged to switch to the DES_ style functions. Some
4120 time in the future, des_old.h and the libdes compatibility functions
4121 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4122 default), and then completely removed.
4125 *) Test for certificates which contain unsupported critical extensions.
4126 If such a certificate is found during a verify operation it is
4127 rejected by default: this behaviour can be overridden by either
4128 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4129 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4130 X509_supported_extension() has also been added which returns 1 if a
4131 particular extension is supported.
4134 *) Modify the behaviour of EVP cipher functions in similar way to digests
4135 to retain compatibility with existing code.
4138 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4139 compatibility with existing code. In particular the 'ctx' parameter does
4140 not have to be to be initialized before the call to EVP_DigestInit() and
4141 it is tidied up after a call to EVP_DigestFinal(). New function
4142 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4143 EVP_MD_CTX_copy() changed to not require the destination to be
4144 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4145 requires the destination to be valid.
4147 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4148 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4151 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4152 so that complete 'Handshake' protocol structures are kept in memory
4153 instead of overwriting 'msg_type' and 'length' with 'body' data.
4156 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4157 [Massimo Santin via Richard Levitte]
4159 *) Major restructuring to the underlying ENGINE code. This includes
4160 reduction of linker bloat, separation of pure "ENGINE" manipulation
4161 (initialisation, etc) from functionality dealing with implementations
4162 of specific crypto iterfaces. This change also introduces integrated
4163 support for symmetric ciphers and digest implementations - so ENGINEs
4164 can now accelerate these by providing EVP_CIPHER and EVP_MD
4165 implementations of their own. This is detailed in crypto/engine/README
4166 as it couldn't be adequately described here. However, there are a few
4167 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4168 were changed in the original introduction of ENGINE code have now
4169 reverted back - the hooking from this code to ENGINE is now a good
4170 deal more passive and at run-time, operations deal directly with
4171 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4172 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4173 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4174 they were not being used by the framework as there is no concept of a
4175 BIGNUM_METHOD and they could not be generalised to the new
4176 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4177 ENGINE_cpy() has been removed as it cannot be consistently defined in
4181 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4184 *) Change mkdef.pl to sort symbols that get the same entry number,
4185 and make sure the automatically generated functions ERR_load_*
4186 become part of libeay.num as well.
4189 *) New function SSL_renegotiate_pending(). This returns true once
4190 renegotiation has been requested (either SSL_renegotiate() call
4191 or HelloRequest/ClientHello receveived from the peer) and becomes
4192 false once a handshake has been completed.
4193 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4194 sends a HelloRequest, but does not ensure that a handshake takes
4195 place. SSL_renegotiate_pending() is useful for checking if the
4196 client has followed the request.)
4199 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4200 By default, clients may request session resumption even during
4201 renegotiation (if session ID contexts permit); with this option,
4202 session resumption is possible only in the first handshake.
4204 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4205 more bits available for options that should not be part of
4206 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4209 *) Add some demos for certificate and certificate request creation.
4212 *) Make maximum certificate chain size accepted from the peer application
4213 settable (SSL*_get/set_max_cert_list()), as proposed by
4214 "Douglas E. Engert" <deengert@anl.gov>.
4217 *) Add support for shared libraries for Unixware-7
4218 (Boyd Lynn Gerber <gerberb@zenez.com>).
4221 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4222 be done prior to destruction. Use this to unload error strings from
4223 ENGINEs that load their own error strings. NB: This adds two new API
4224 functions to "get" and "set" this destroy handler in an ENGINE.
4227 *) Alter all existing ENGINE implementations (except "openssl" and
4228 "openbsd") to dynamically instantiate their own error strings. This
4229 makes them more flexible to be built both as statically-linked ENGINEs
4230 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4231 Also, add stub code to each that makes building them as self-contained
4232 shared-libraries easier (see README.ENGINE).
4235 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4236 implementations into applications that are completely implemented in
4237 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4238 commands that can be used to configure what shared-library to load and
4239 to control aspects of the way it is handled. Also, made an update to
4240 the README.ENGINE file that brings its information up-to-date and
4241 provides some information and instructions on the "dynamic" ENGINE
4242 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4245 *) Make it possible to unload ranges of ERR strings with a new
4246 "ERR_unload_strings" function.
4249 *) Add a copy() function to EVP_MD.
4252 *) Make EVP_MD routines take a context pointer instead of just the
4253 md_data void pointer.
4256 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4257 that the digest can only process a single chunk of data
4258 (typically because it is provided by a piece of
4259 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4260 is only going to provide a single chunk of data, and hence the
4261 framework needn't accumulate the data for oneshot drivers.
4264 *) As with "ERR", make it possible to replace the underlying "ex_data"
4265 functions. This change also alters the storage and management of global
4266 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4267 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4268 index counters. The API functions that use this state have been changed
4269 to take a "class_index" rather than pointers to the class's local STACK
4270 and counter, and there is now an API function to dynamically create new
4271 classes. This centralisation allows us to (a) plug a lot of the
4272 thread-safety problems that existed, and (b) makes it possible to clean
4273 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4274 such data would previously have always leaked in application code and
4275 workarounds were in place to make the memory debugging turn a blind eye
4276 to it. Application code that doesn't use this new function will still
4277 leak as before, but their memory debugging output will announce it now
4278 rather than letting it slide.
4280 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4281 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4282 has a return value to indicate success or failure.
4285 *) Make it possible to replace the underlying "ERR" functions such that the
4286 global state (2 LHASH tables and 2 locks) is only used by the "default"
4287 implementation. This change also adds two functions to "get" and "set"
4288 the implementation prior to it being automatically set the first time
4289 any other ERR function takes place. Ie. an application can call "get",
4290 pass the return value to a module it has just loaded, and that module
4291 can call its own "set" function using that value. This means the
4292 module's "ERR" operations will use (and modify) the error state in the
4293 application and not in its own statically linked copy of OpenSSL code.
4296 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4297 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4298 the operation, and provides a more encapsulated way for external code
4299 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4300 to use these functions rather than manually incrementing the counts.
4302 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4305 *) Add EVP test program.
4308 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4311 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4312 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4313 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4314 These allow a CRL to be built without having to access X509_CRL fields
4315 directly. Modify 'ca' application to use new functions.
4318 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4319 bug workarounds. Rollback attack detection is a security feature.
4320 The problem will only arise on OpenSSL servers when TLSv1 is not
4321 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4322 Software authors not wanting to support TLSv1 will have special reasons
4323 for their choice and can explicitly enable this option.
4324 [Bodo Moeller, Lutz Jaenicke]
4326 *) Rationalise EVP so it can be extended: don't include a union of
4327 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4328 (similar to those existing for EVP_CIPHER_CTX).
4333 EVP_MD_CTX_init(&md); /* new function call */
4334 EVP_DigestInit(&md, EVP_sha1());
4335 EVP_DigestUpdate(&md, in, len);
4336 EVP_DigestFinal(&md, out, NULL);
4337 EVP_MD_CTX_cleanup(&md); /* new function call */
4341 *) Make DES key schedule conform to the usual scheme, as well as
4342 correcting its structure. This means that calls to DES functions
4343 now have to pass a pointer to a des_key_schedule instead of a
4344 plain des_key_schedule (which was actually always a pointer
4347 des_key_schedule ks;
4349 des_set_key_checked(..., &ks);
4350 des_ncbc_encrypt(..., &ks, ...);
4352 (Note that a later change renames 'des_...' into 'DES_...'.)
4355 *) Initial reduction of linker bloat: the use of some functions, such as
4356 PEM causes large amounts of unused functions to be linked in due to
4357 poor organisation. For example pem_all.c contains every PEM function
4358 which has a knock on effect of linking in large amounts of (unused)
4359 ASN1 code. Grouping together similar functions and splitting unrelated
4360 functions prevents this.
4363 *) Cleanup of EVP macros.
4366 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4367 correct _ecb suffix.
4370 *) Add initial OCSP responder support to ocsp application. The
4371 revocation information is handled using the text based index
4372 use by the ca application. The responder can either handle
4373 requests generated internally, supplied in files (for example
4374 via a CGI script) or using an internal minimal server.
4377 *) Add configuration choices to get zlib compression for TLS.
4380 *) Changes to Kerberos SSL for RFC 2712 compliance:
4381 1. Implemented real KerberosWrapper, instead of just using
4382 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4383 2. Implemented optional authenticator field of KerberosWrapper.
4385 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4386 and authenticator structs; see crypto/krb5/.
4388 Generalized Kerberos calls to support multiple Kerberos libraries.
4389 [Vern Staats <staatsvr@asc.hpc.mil>,
4390 Jeffrey Altman <jaltman@columbia.edu>
4391 via Richard Levitte]
4393 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4394 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4395 values for each of the key sizes rather than having just
4396 parameters (and 'speed' generating keys each time).
4399 *) Speed up EVP routines.
4402 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4403 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4404 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4405 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4407 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4408 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4409 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4412 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4414 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4417 *) Added the OS2-EMX target.
4418 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4420 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4421 to support NCONF routines in extension code. New function CONF_set_nconf()
4422 to allow functions which take an NCONF to also handle the old LHASH
4423 structure: this means that the old CONF compatible routines can be
4424 retained (in particular wrt extensions) without having to duplicate the
4425 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4428 *) Enhance the general user interface with mechanisms for inner control
4429 and with possibilities to have yes/no kind of prompts.
4432 *) Change all calls to low level digest routines in the library and
4433 applications to use EVP. Add missing calls to HMAC_cleanup() and
4434 don't assume HMAC_CTX can be copied using memcpy().
4435 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4437 *) Add the possibility to control engines through control names but with
4438 arbitrary arguments instead of just a string.
4439 Change the key loaders to take a UI_METHOD instead of a callback
4440 function pointer. NOTE: this breaks binary compatibility with earlier
4441 versions of OpenSSL [engine].
4442 Adapt the nCipher code for these new conditions and add a card insertion
4446 *) Enhance the general user interface with mechanisms to better support
4447 dialog box interfaces, application-defined prompts, the possibility
4448 to use defaults (for example default passwords from somewhere else)
4449 and interrupts/cancellations.
4452 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4453 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4456 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4457 tidy up some unnecessarily weird code in 'sk_new()').
4458 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4460 *) Change the key loading routines for ENGINEs to use the same kind
4461 callback (pem_password_cb) as all other routines that need this
4465 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4466 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4467 than this minimum value is recommended.
4470 *) New random seeder for OpenVMS, using the system process statistics
4471 that are easily reachable.
4474 *) Windows apparently can't transparently handle global
4475 variables defined in DLLs. Initialisations such as:
4477 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4479 wont compile. This is used by the any applications that need to
4480 declare their own ASN1 modules. This was fixed by adding the option
4481 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4482 needed for static libraries under Win32.
4485 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4486 setting of purpose and trust fields. New X509_STORE trust and
4487 purpose functions and tidy up setting in other SSL functions.
4490 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4491 structure. These are inherited by X509_STORE_CTX when it is
4492 initialised. This allows various defaults to be set in the
4493 X509_STORE structure (such as flags for CRL checking and custom
4494 purpose or trust settings) for functions which only use X509_STORE_CTX
4495 internally such as S/MIME.
4497 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4498 trust settings if they are not set in X509_STORE. This allows X509_STORE
4499 purposes and trust (in S/MIME for example) to override any set by default.
4501 Add command line options for CRL checking to smime, s_client and s_server
4505 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4506 are set then the CRL is looked up in the X509_STORE structure and
4507 its validity and signature checked, then if the certificate is found
4508 in the CRL the verify fails with a revoked error.
4510 Various new CRL related callbacks added to X509_STORE_CTX structure.
4512 Command line options added to 'verify' application to support this.
4514 This needs some additional work, such as being able to handle multiple
4515 CRLs with different times, extension based lookup (rather than just
4516 by subject name) and ultimately more complete V2 CRL extension
4520 *) Add a general user interface API (crypto/ui/). This is designed
4521 to replace things like des_read_password and friends (backward
4522 compatibility functions using this new API are provided).
4523 The purpose is to remove prompting functions from the DES code
4524 section as well as provide for prompting through dialog boxes in
4525 a window system and the like.
4528 *) Add "ex_data" support to ENGINE so implementations can add state at a
4529 per-structure level rather than having to store it globally.
4532 *) Make it possible for ENGINE structures to be copied when retrieved by
4533 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4534 This causes the "original" ENGINE structure to act like a template,
4535 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4536 operational state can be localised to each ENGINE structure, despite the
4537 fact they all share the same "methods". New ENGINE structures returned in
4538 this case have no functional references and the return value is the single
4539 structural reference. This matches the single structural reference returned
4540 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4544 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4545 needs to match any other type at all we need to manually clear the
4549 *) Changes to the "openssl engine" utility to include;
4550 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4551 about an ENGINE's available control commands.
4552 - executing control commands from command line arguments using the
4553 '-pre' and '-post' switches. '-post' is only used if '-t' is
4554 specified and the ENGINE is successfully initialised. The syntax for
4555 the individual commands are colon-separated, for example;
4556 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4559 *) New dynamic control command support for ENGINEs. ENGINEs can now
4560 declare their own commands (numbers), names (strings), descriptions,
4561 and input types for run-time discovery by calling applications. A
4562 subset of these commands are implicitly classed as "executable"
4563 depending on their input type, and only these can be invoked through
4564 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4565 can be based on user input, config files, etc). The distinction is
4566 that "executable" commands cannot return anything other than a boolean
4567 result and can only support numeric or string input, whereas some
4568 discoverable commands may only be for direct use through
4569 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4570 pointers, or other custom uses. The "executable" commands are to
4571 support parameterisations of ENGINE behaviour that can be
4572 unambiguously defined by ENGINEs and used consistently across any
4573 OpenSSL-based application. Commands have been added to all the
4574 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4575 control over shared-library paths without source code alterations.
4578 *) Changed all ENGINE implementations to dynamically allocate their
4579 ENGINEs rather than declaring them statically. Apart from this being
4580 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4581 this also allows the implementations to compile without using the
4582 internal engine_int.h header.
4585 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4586 'const' value. Any code that should be able to modify a RAND_METHOD
4587 should already have non-const pointers to it (ie. they should only
4588 modify their own ones).
4591 *) Made a variety of little tweaks to the ENGINE code.
4592 - "atalla" and "ubsec" string definitions were moved from header files
4593 to C code. "nuron" string definitions were placed in variables
4594 rather than hard-coded - allowing parameterisation of these values
4595 later on via ctrl() commands.
4596 - Removed unused "#if 0"'d code.
4597 - Fixed engine list iteration code so it uses ENGINE_free() to release
4598 structural references.
4599 - Constified the RAND_METHOD element of ENGINE structures.
4600 - Constified various get/set functions as appropriate and added
4601 missing functions (including a catch-all ENGINE_cpy that duplicates
4602 all ENGINE values onto a new ENGINE except reference counts/state).
4603 - Removed NULL parameter checks in get/set functions. Setting a method
4604 or function to NULL is a way of cancelling out a previously set
4605 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4606 and doesn't justify the extra error symbols and code.
4607 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4608 flags from engine_int.h to engine.h.
4609 - Changed prototypes for ENGINE handler functions (init(), finish(),
4610 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4613 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4614 to the algorithm using long division. The binary algorithm can be
4615 used only if the modulus is odd. On 32-bit systems, it is faster
4616 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4617 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4618 up to 450 bits. In 64-bit environments, the binary algorithm
4619 appears to be advantageous for much longer moduli; here we use it
4620 for moduli up to 2048 bits.
4623 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4624 could not support the combine flag in choice fields.
4627 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4628 extensions from a certificate request to the certificate.
4631 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4632 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4633 file: this allows the display of the certificate about to be
4634 signed to be customised, to allow certain fields to be included
4635 or excluded and extension details. The old system didn't display
4636 multicharacter strings properly, omitted fields not in the policy
4637 and couldn't display additional details such as extensions.
4640 *) Function EC_POINTs_mul for multiple scalar multiplication
4641 of an arbitrary number of elliptic curve points
4642 \sum scalars[i]*points[i],
4643 optionally including the generator defined for the EC_GROUP:
4644 scalar*generator + \sum scalars[i]*points[i].
4646 EC_POINT_mul is a simple wrapper function for the typical case
4647 that the point list has just one item (besides the optional
4651 *) First EC_METHODs for curves over GF(p):
4653 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4654 operations and provides various method functions that can also
4655 operate with faster implementations of modular arithmetic.
4657 EC_GFp_mont_method() reuses most functions that are part of
4658 EC_GFp_simple_method, but uses Montgomery arithmetic.
4660 [Bodo Moeller; point addition and point doubling
4661 implementation directly derived from source code provided by
4662 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4664 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4665 crypto/ec/ec_lib.c):
4667 Curves are EC_GROUP objects (with an optional group generator)
4668 based on EC_METHODs that are built into the library.
4670 Points are EC_POINT objects based on EC_GROUP objects.
4672 Most of the framework would be able to handle curves over arbitrary
4673 finite fields, but as there are no obvious types for fields other
4674 than GF(p), some functions are limited to that for now.
4677 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4678 that the file contains a complete HTTP response.
4681 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4682 change the def and num file printf format specifier from "%-40sXXX"
4683 to "%-39s XXX". The latter will always guarantee a space after the
4684 field while the former will cause them to run together if the field
4685 is 40 of more characters long.
4688 *) Constify the cipher and digest 'method' functions and structures
4689 and modify related functions to take constant EVP_MD and EVP_CIPHER
4693 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4694 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4697 *) Modify EVP_Digest*() routines so they now return values. Although the
4698 internal software routines can never fail additional hardware versions
4702 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4704 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4705 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4708 ERR_R_NESTED_ASN1_ERROR
4710 ERR_R_MISSING_ASN1_EOS
4711 were 4 .. 9, conflicting with
4712 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4714 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4715 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4717 Add new error code 'ERR_R_INTERNAL_ERROR'.
4720 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4724 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4725 sets the subject name for a new request or supersedes the
4726 subject name in a given request. Formats that can be parsed are
4727 'CN=Some Name, OU=myOU, C=IT'
4729 'CN=Some Name/OU=myOU/C=IT'.
4731 Add options '-batch' and '-verbose' to 'openssl req'.
4732 [Massimiliano Pala <madwolf@hackmasters.net>]
4734 *) Introduce the possibility to access global variables through
4735 functions on platform were that's the best way to handle exporting
4736 global variables in shared libraries. To enable this functionality,
4737 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4738 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4739 is normally done by Configure or something similar).
4741 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4742 in the source file (foo.c) like this:
4744 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4745 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4747 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4748 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4750 OPENSSL_DECLARE_GLOBAL(int,foo);
4751 #define foo OPENSSL_GLOBAL_REF(foo)
4752 OPENSSL_DECLARE_GLOBAL(double,bar);
4753 #define bar OPENSSL_GLOBAL_REF(bar)
4755 The #defines are very important, and therefore so is including the
4756 header file everywhere where the defined globals are used.
4758 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4759 of ASN.1 items, but that structure is a bit different.
4761 The largest change is in util/mkdef.pl which has been enhanced with
4762 better and easier to understand logic to choose which symbols should
4763 go into the Windows .def files as well as a number of fixes and code
4764 cleanup (among others, algorithm keywords are now sorted
4765 lexicographically to avoid constant rewrites).
4768 *) In BN_div() keep a copy of the sign of 'num' before writing the
4769 result to 'rm' because if rm==num the value will be overwritten
4770 and produce the wrong result if 'num' is negative: this caused
4771 problems with BN_mod() and BN_nnmod().
4774 *) Function OCSP_request_verify(). This checks the signature on an
4775 OCSP request and verifies the signer certificate. The signer
4776 certificate is just checked for a generic purpose and OCSP request
4780 *) Add OCSP_check_validity() function to check the validity of OCSP
4781 responses. OCSP responses are prepared in real time and may only
4782 be a few seconds old. Simply checking that the current time lies
4783 between thisUpdate and nextUpdate max reject otherwise valid responses
4784 caused by either OCSP responder or client clock inaccuracy. Instead
4785 we allow thisUpdate and nextUpdate to fall within a certain period of
4786 the current time. The age of the response can also optionally be
4787 checked. Two new options -validity_period and -status_age added to
4791 *) If signature or public key algorithm is unrecognized print out its
4792 OID rather that just UNKNOWN.
4795 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4796 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4797 ID to be generated from the issuer certificate alone which can then be
4798 passed to OCSP_id_issuer_cmp().
4801 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4802 ASN1 modules to export functions returning ASN1_ITEM pointers
4803 instead of the ASN1_ITEM structures themselves. This adds several
4804 new macros which allow the underlying ASN1 function/structure to
4805 be accessed transparently. As a result code should not use ASN1_ITEM
4806 references directly (such as &X509_it) but instead use the relevant
4807 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4808 use of the new ASN1 code on platforms where exporting structures
4809 is problematical (for example in shared libraries) but exporting
4810 functions returning pointers to structures is not.
4813 *) Add support for overriding the generation of SSL/TLS session IDs.
4814 These callbacks can be registered either in an SSL_CTX or per SSL.
4815 The purpose of this is to allow applications to control, if they wish,
4816 the arbitrary values chosen for use as session IDs, particularly as it
4817 can be useful for session caching in multiple-server environments. A
4818 command-line switch for testing this (and any client code that wishes
4819 to use such a feature) has been added to "s_server".
4820 [Geoff Thorpe, Lutz Jaenicke]
4822 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4823 of the form '#if defined(...) || defined(...) || ...' and
4824 '#if !defined(...) && !defined(...) && ...'. This also avoids
4825 the growing number of special cases it was previously handling.
4828 *) Make all configuration macros available for application by making
4829 sure they are available in opensslconf.h, by giving them names starting
4830 with "OPENSSL_" to avoid conflicts with other packages and by making
4831 sure e_os2.h will cover all platform-specific cases together with
4833 Additionally, it is now possible to define configuration/platform-
4834 specific names (called "system identities"). In the C code, these
4835 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4836 macro with the name beginning with "OPENSSL_SYS_", which is determined
4837 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4841 *) New option -set_serial to 'req' and 'x509' this allows the serial
4842 number to use to be specified on the command line. Previously self
4843 signed certificates were hard coded with serial number 0 and the
4844 CA options of 'x509' had to use a serial number in a file which was
4848 *) New options to 'ca' utility to support V2 CRL entry extensions.
4849 Currently CRL reason, invalidity date and hold instruction are
4850 supported. Add new CRL extensions to V3 code and some new objects.
4853 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4854 disable standard block padding (aka PKCS#5 padding) in the EVP
4855 API, which was previously mandatory. This means that the data is
4856 not padded in any way and so the total length much be a multiple
4857 of the block size, otherwise an error occurs.
4860 *) Initial (incomplete) OCSP SSL support.
4863 *) New function OCSP_parse_url(). This splits up a URL into its host,
4864 port and path components: primarily to parse OCSP URLs. New -url
4865 option to ocsp utility.
4868 *) New nonce behavior. The return value of OCSP_check_nonce() now
4869 reflects the various checks performed. Applications can decide
4870 whether to tolerate certain situations such as an absent nonce
4871 in a response when one was present in a request: the ocsp application
4872 just prints out a warning. New function OCSP_add1_basic_nonce()
4873 this is to allow responders to include a nonce in a response even if
4874 the request is nonce-less.
4877 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4878 skipped when using openssl x509 multiple times on a single input file,
4879 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4882 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4883 set string type: to handle setting ASN1_TIME structures. Fix ca
4884 utility to correctly initialize revocation date of CRLs.
4887 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4888 the clients preferred ciphersuites and rather use its own preferences.
4889 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4890 Internet Explorer by ensuring unchanged hash method during stepup.
4891 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4894 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4895 to aes and add a new 'exist' option to print out symbols that don't
4899 *) Additional options to ocsp utility to allow flags to be set and
4900 additional certificates supplied.
4903 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4904 OCSP client a number of certificate to only verify the response
4908 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4909 handle the new API. Currently only ECB, CBC modes supported. Add new
4912 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4913 Encryption Standard (AES) Ciphersuites for Transport Layer
4914 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4915 not enabled by default and were not part of the "ALL" ciphersuite
4916 alias because they were not yet official; they could be
4917 explicitly requested by specifying the "AESdraft" ciphersuite
4918 group alias. In the final release of OpenSSL 0.9.7, the group
4919 alias is called "AES" and is part of "ALL".)
4920 [Ben Laurie, Steve Henson, Bodo Moeller]
4922 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4923 request to response.
4926 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4927 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4928 extract information from a certificate request. OCSP_response_create()
4929 creates a response and optionally adds a basic response structure.
4930 OCSP_basic_add1_status() adds a complete single response to a basic
4931 response and returns the OCSP_SINGLERESP structure just added (to allow
4932 extensions to be included for example). OCSP_basic_add1_cert() adds a
4933 certificate to a basic response and OCSP_basic_sign() signs a basic
4934 response with various flags. New helper functions ASN1_TIME_check()
4935 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4936 (converts ASN1_TIME to GeneralizedTime).
4939 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4940 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4941 structure from a certificate. X509_pubkey_digest() digests the public_key
4942 contents: this is used in various key identifiers.
4945 *) Make sk_sort() tolerate a NULL argument.
4946 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4948 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4949 passed by the function are trusted implicitly. If any of them signed the
4950 response then it is assumed to be valid and is not verified.
4953 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4954 to data. This was previously part of the PKCS7 ASN1 code. This
4955 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4956 [Steve Henson, reported by Kenneth R. Robinette
4957 <support@securenetterm.com>]
4959 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4960 routines: without these tracing memory leaks is very painful.
4961 Fix leaks in PKCS12 and PKCS7 routines.
4964 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4965 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4966 effectively meant GeneralizedTime would never be used. Now it
4967 is initialised to -1 but X509_time_adj() now has to check the value
4968 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4969 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4970 [Steve Henson, reported by Kenneth R. Robinette
4971 <support@securenetterm.com>]
4973 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4974 result in a zero length in the ASN1_INTEGER structure which was
4975 not consistent with the structure when d2i_ASN1_INTEGER() was used
4976 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4977 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4978 where it did not print out a minus for negative ASN1_INTEGER.
4981 *) Add summary printout to ocsp utility. The various functions which
4982 convert status values to strings have been renamed to:
4983 OCSP_response_status_str(), OCSP_cert_status_str() and
4984 OCSP_crl_reason_str() and are no longer static. New options
4985 to verify nonce values and to disable verification. OCSP response
4986 printout format cleaned up.
4989 *) Add additional OCSP certificate checks. These are those specified
4990 in RFC2560. This consists of two separate checks: the CA of the
4991 certificate being checked must either be the OCSP signer certificate
4992 or the issuer of the OCSP signer certificate. In the latter case the
4993 OCSP signer certificate must contain the OCSP signing extended key
4994 usage. This check is performed by attempting to match the OCSP
4995 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4996 in the OCSP_CERTID structures of the response.
4999 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5000 and related routines. This uses the standard OpenSSL certificate
5001 verify routines to perform initial checks (just CA validity) and
5002 to obtain the certificate chain. Then additional checks will be
5003 performed on the chain. Currently the root CA is checked to see
5004 if it is explicitly trusted for OCSP signing. This is used to set
5005 a root CA as a global signing root: that is any certificate that
5006 chains to that CA is an acceptable OCSP signing certificate.
5009 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5010 extensions from a separate configuration file.
5011 As when reading extensions from the main configuration file,
5012 the '-extensions ...' option may be used for specifying the
5014 [Massimiliano Pala <madwolf@comune.modena.it>]
5016 *) New OCSP utility. Allows OCSP requests to be generated or
5017 read. The request can be sent to a responder and the output
5018 parsed, outputed or printed in text form. Not complete yet:
5019 still needs to check the OCSP response validity.
5022 *) New subcommands for 'openssl ca':
5023 'openssl ca -status <serial>' prints the status of the cert with
5024 the given serial number (according to the index file).
5025 'openssl ca -updatedb' updates the expiry status of certificates
5027 [Massimiliano Pala <madwolf@comune.modena.it>]
5029 *) New '-newreq-nodes' command option to CA.pl. This is like
5030 '-newreq', but calls 'openssl req' with the '-nodes' option
5031 so that the resulting key is not encrypted.
5032 [Damien Miller <djm@mindrot.org>]
5034 *) New configuration for the GNU Hurd.
5035 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5037 *) Initial code to implement OCSP basic response verify. This
5038 is currently incomplete. Currently just finds the signer's
5039 certificate and verifies the signature on the response.
5042 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5043 value of OPENSSLDIR. This is available via the new '-d' option
5044 to 'openssl version', and is also included in 'openssl version -a'.
5047 *) Allowing defining memory allocation callbacks that will be given
5048 file name and line number information in additional arguments
5049 (a const char* and an int). The basic functionality remains, as
5050 well as the original possibility to just replace malloc(),
5051 realloc() and free() by functions that do not know about these
5052 additional arguments. To register and find out the current
5053 settings for extended allocation functions, the following
5054 functions are provided:
5056 CRYPTO_set_mem_ex_functions
5057 CRYPTO_set_locked_mem_ex_functions
5058 CRYPTO_get_mem_ex_functions
5059 CRYPTO_get_locked_mem_ex_functions
5061 These work the same way as CRYPTO_set_mem_functions and friends.
5062 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5063 extended allocation function is enabled.
5064 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5065 a conventional allocation function is enabled.
5066 [Richard Levitte, Bodo Moeller]
5068 *) Finish off removing the remaining LHASH function pointer casts.
5069 There should no longer be any prototype-casting required when using
5070 the LHASH abstraction, and any casts that remain are "bugs". See
5071 the callback types and macros at the head of lhash.h for details
5072 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5075 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5076 If /dev/[u]random devices are not available or do not return enough
5077 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5079 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5080 /etc/entropy will be queried once each in this sequence, quering stops
5081 when enough entropy was collected without querying more sockets.
5084 *) Change the Unix RAND_poll() variant to be able to poll several
5085 random devices, as specified by DEVRANDOM, until a sufficient amount
5086 of data has been collected. We spend at most 10 ms on each file
5087 (select timeout) and read in non-blocking mode. DEVRANDOM now
5088 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5089 (previously it was just the string "/dev/urandom"), so on typical
5090 platforms the 10 ms delay will never occur.
5091 Also separate out the Unix variant to its own file, rand_unix.c.
5092 For VMS, there's a currently-empty rand_vms.c.
5095 *) Move OCSP client related routines to ocsp_cl.c. These
5096 provide utility functions which an application needing
5097 to issue a request to an OCSP responder and analyse the
5098 response will typically need: as opposed to those which an
5099 OCSP responder itself would need which will be added later.
5101 OCSP_request_sign() signs an OCSP request with an API similar
5102 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5103 response. OCSP_response_get1_basic() extracts basic response
5104 from response. OCSP_resp_find_status(): finds and extracts status
5105 information from an OCSP_CERTID structure (which will be created
5106 when the request structure is built). These are built from lower
5107 level functions which work on OCSP_SINGLERESP structures but
5108 wont normally be used unless the application wishes to examine
5109 extensions in the OCSP response for example.
5111 Replace nonce routines with a pair of functions.
5112 OCSP_request_add1_nonce() adds a nonce value and optionally
5113 generates a random value. OCSP_check_nonce() checks the
5114 validity of the nonce in an OCSP response.
5117 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5118 This doesn't copy the supplied OCSP_CERTID and avoids the
5119 need to free up the newly created id. Change return type
5120 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5121 This can then be used to add extensions to the request.
5122 Deleted OCSP_request_new(), since most of its functionality
5123 is now in OCSP_REQUEST_new() (and the case insensitive name
5124 clash) apart from the ability to set the request name which
5125 will be added elsewhere.
5128 *) Update OCSP API. Remove obsolete extensions argument from
5129 various functions. Extensions are now handled using the new
5130 OCSP extension code. New simple OCSP HTTP function which
5131 can be used to send requests and parse the response.
5134 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5135 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5136 uses the special reorder version of SET OF to sort the attributes
5137 and reorder them to match the encoded order. This resolves a long
5138 standing problem: a verify on a PKCS7 structure just after signing
5139 it used to fail because the attribute order did not match the
5140 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5141 it uses the received order. This is necessary to tolerate some broken
5142 software that does not order SET OF. This is handled by encoding
5143 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5144 to produce the required SET OF.
5147 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5148 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5149 files to get correct declarations of the ASN.1 item variables.
5152 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5153 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5154 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5155 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5156 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5157 ASN1_ITEM and no wrapper functions.
5160 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5161 replace the old function pointer based I/O routines. Change most of
5162 the *_d2i_bio() and *_d2i_fp() functions to use these.
5165 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5166 lines, recognice more "algorithms" that can be deselected, and make
5167 it complain about algorithm deselection that isn't recognised.
5170 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5171 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5172 to use new functions. Add NO_ASN1_OLD which can be set to remove
5173 some old style ASN1 functions: this can be used to determine if old
5174 code will still work when these eventually go away.
5177 *) New extension functions for OCSP structures, these follow the
5178 same conventions as certificates and CRLs.
5181 *) New function X509V3_add1_i2d(). This automatically encodes and
5182 adds an extension. Its behaviour can be customised with various
5183 flags to append, replace or delete. Various wrappers added for
5184 certifcates and CRLs.
5187 *) Fix to avoid calling the underlying ASN1 print routine when
5188 an extension cannot be parsed. Correct a typo in the
5189 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5192 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5193 entries for variables.
5196 *) Add functionality to apps/openssl.c for detecting locking
5197 problems: As the program is single-threaded, all we have
5198 to do is register a locking callback using an array for
5199 storing which locks are currently held by the program.
5202 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5203 SSL_get_ex_data_X509_STORE_idx(), which is used in
5204 ssl_verify_cert_chain() and thus can be called at any time
5205 during TLS/SSL handshakes so that thread-safety is essential.
5206 Unfortunately, the ex_data design is not at all suited
5207 for multi-threaded use, so it probably should be abolished.
5210 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5211 [Broadcom, tweaked and integrated by Geoff Thorpe]
5213 *) Move common extension printing code to new function
5214 X509V3_print_extensions(). Reorganise OCSP print routines and
5215 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5218 *) New function X509_signature_print() to remove duplication in some
5222 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5223 set (this was treated exactly the same as SET OF previously). This
5224 is used to reorder the STACK representing the structure to match the
5225 encoding. This will be used to get round a problem where a PKCS7
5226 structure which was signed could not be verified because the STACK
5227 order did not reflect the encoded order.
5230 *) Reimplement the OCSP ASN1 module using the new code.
5233 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5234 for its ASN1 operations. The old style function pointers still exist
5235 for now but they will eventually go away.
5238 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5239 completely replaces the old ASN1 functionality with a table driven
5240 encoder and decoder which interprets an ASN1_ITEM structure describing
5241 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5242 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5243 has also been converted to the new form.
5246 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5247 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5248 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5249 for negative moduli.
5252 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5253 of not touching the result's sign bit.
5256 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5260 *) Changed the LHASH code to use prototypes for callbacks, and created
5261 macros to declare and implement thin (optionally static) functions
5262 that provide type-safety and avoid function pointer casting for the
5263 type-specific callbacks.
5266 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5268 [Veers Staats <staatsvr@asc.hpc.mil>,
5269 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5271 *) Reformat the FAQ so the different questions and answers can be divided
5272 in sections depending on the subject.
5275 *) Have the zlib compression code load ZLIB.DLL dynamically under
5279 *) New function BN_mod_sqrt for computing square roots modulo a prime
5280 (using the probabilistic Tonelli-Shanks algorithm unless
5281 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5282 be handled deterministically).
5283 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5285 *) Make BN_mod_inverse faster by explicitly handling small quotients
5286 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5287 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5290 *) New function BN_kronecker.
5293 *) Fix BN_gcd so that it works on negative inputs; the result is
5294 positive unless both parameters are zero.
5295 Previously something reasonably close to an infinite loop was
5296 possible because numbers could be growing instead of shrinking
5297 in the implementation of Euclid's algorithm.
5300 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5301 sign of the number in question.
5303 Fix BN_is_word(a,w) to work correctly for w == 0.
5305 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5306 because its test if the absolute value of 'a' equals 'w'.
5307 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5308 it exists mostly for use in the implementations of BN_is_zero(),
5309 BN_is_one(), and BN_is_word().
5312 *) New function BN_swap.
5315 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5316 the exponentiation functions are more likely to produce reasonable
5317 results on negative inputs.
5320 *) Change BN_mod_mul so that the result is always non-negative.
5321 Previously, it could be negative if one of the factors was negative;
5322 I don't think anyone really wanted that behaviour.
5325 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5326 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5327 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5328 and add new functions:
5337 BN_mod_lshift1_quick
5341 These functions always generate non-negative results.
5343 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5344 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5346 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5347 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5348 be reduced modulo m.
5349 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5352 The following entry accidentily appeared in the CHANGES file
5353 distributed with OpenSSL 0.9.7. The modifications described in
5354 it do *not* apply to OpenSSL 0.9.7.
5356 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5357 was actually never needed) and in BN_mul(). The removal in BN_mul()
5358 required a small change in bn_mul_part_recursive() and the addition
5359 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5360 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5361 bn_sub_words() and bn_add_words() except they take arrays with
5366 *) In 'openssl passwd', verify passwords read from the terminal
5367 unless the '-salt' option is used (which usually means that
5368 verification would just waste user's time since the resulting
5369 hash is going to be compared with some given password hash)
5370 or the new '-noverify' option is used.
5372 This is an incompatible change, but it does not affect
5373 non-interactive use of 'openssl passwd' (passwords on the command
5374 line, '-stdin' option, '-in ...' option) and thus should not
5378 *) Remove all references to RSAref, since there's no more need for it.
5381 *) Make DSO load along a path given through an environment variable
5382 (SHLIB_PATH) with shl_load().
5385 *) Constify the ENGINE code as a result of BIGNUM constification.
5386 Also constify the RSA code and most things related to it. In a
5387 few places, most notable in the depth of the ASN.1 code, ugly
5388 casts back to non-const were required (to be solved at a later
5392 *) Make it so the openssl application has all engines loaded by default.
5395 *) Constify the BIGNUM routines a little more.
5398 *) Add the following functions:
5400 ENGINE_load_cswift()
5402 ENGINE_load_atalla()
5404 ENGINE_load_builtin_engines()
5406 That way, an application can itself choose if external engines that
5407 are built-in in OpenSSL shall ever be used or not. The benefit is
5408 that applications won't have to be linked with libdl or other dso
5409 libraries unless it's really needed.
5411 Changed 'openssl engine' to load all engines on demand.
5412 Changed the engine header files to avoid the duplication of some
5413 declarations (they differed!).
5416 *) 'openssl engine' can now list capabilities.
5419 *) Better error reporting in 'openssl engine'.
5422 *) Never call load_dh_param(NULL) in s_server.
5425 *) Add engine application. It can currently list engines by name and
5426 identity, and test if they are actually available.
5429 *) Improve RPM specification file by forcing symbolic linking and making
5430 sure the installed documentation is also owned by root.root.
5431 [Damien Miller <djm@mindrot.org>]
5433 *) Give the OpenSSL applications more possibilities to make use of
5434 keys (public as well as private) handled by engines.
5437 *) Add OCSP code that comes from CertCo.
5440 *) Add VMS support for the Rijndael code.
5443 *) Added untested support for Nuron crypto accelerator.
5446 *) Add support for external cryptographic devices. This code was
5447 previously distributed separately as the "engine" branch.
5448 [Geoff Thorpe, Richard Levitte]
5450 *) Rework the filename-translation in the DSO code. It is now possible to
5451 have far greater control over how a "name" is turned into a filename
5452 depending on the operating environment and any oddities about the
5453 different shared library filenames on each system.
5456 *) Support threads on FreeBSD-elf in Configure.
5459 *) Fix for SHA1 assembly problem with MASM: it produces
5460 warnings about corrupt line number information when assembling
5461 with debugging information. This is caused by the overlapping
5463 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5466 NCONF_get_number() has no error checking at all. As a replacement,
5467 NCONF_get_number_e() is defined (_e for "error checking") and is
5468 promoted strongly. The old NCONF_get_number is kept around for
5469 binary backward compatibility.
5470 Make it possible for methods to load from something other than a BIO,
5471 by providing a function pointer that is given a name instead of a BIO.
5472 For example, this could be used to load configuration data from an
5476 *) Fix for non blocking accept BIOs. Added new I/O special reason
5477 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5478 with non blocking I/O was not possible because no retry code was
5479 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5483 *) Added the beginnings of Rijndael support.
5486 *) Fix for bug in DirectoryString mask setting. Add support for
5487 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5488 to allow certificate printing to more controllable, additional
5489 'certopt' option to 'x509' to allow new printing options to be
5493 *) Clean old EAY MD5 hack from e_os.h.
5496 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5498 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5499 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5500 [Joe Orton, Steve Henson]
5502 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5504 *) Fix additional bug revealed by the NISCC test suite:
5506 Stop bug triggering large recursion when presented with
5507 certain ASN.1 tags (CVE-2003-0851)
5510 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5512 *) Fix various bugs revealed by running the NISCC test suite:
5514 Stop out of bounds reads in the ASN1 code when presented with
5515 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5517 If verify callback ignores invalid public key errors don't try to check
5518 certificate signature with the NULL public key.
5522 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5523 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5527 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5528 extra data after the compression methods not only for TLS 1.0
5529 but also for SSL 3.0 (as required by the specification).
5530 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5532 *) Change X509_certificate_type() to mark the key as exported/exportable
5533 when it's 512 *bits* long, not 512 bytes.
5536 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5538 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5539 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5540 a protocol version number mismatch like a decryption error
5541 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5544 *) Turn on RSA blinding by default in the default implementation
5545 to avoid a timing attack. Applications that don't want it can call
5546 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5547 They would be ill-advised to do so in most cases.
5548 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5550 *) Change RSA blinding code so that it works when the PRNG is not
5551 seeded (in this case, the secret RSA exponent is abused as
5552 an unpredictable seed -- if it is not unpredictable, there
5553 is no point in blinding anyway). Make RSA blinding thread-safe
5554 by remembering the creator's thread ID in rsa->blinding and
5555 having all other threads use local one-time blinding factors
5556 (this requires more computation than sharing rsa->blinding, but
5557 avoids excessive locking; and if an RSA object is not shared
5558 between threads, blinding will still be very fast).
5561 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5563 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5564 via timing by performing a MAC computation even if incorrrect
5565 block cipher padding has been found. This is a countermeasure
5566 against active attacks where the attacker has to distinguish
5567 between bad padding and a MAC verification error. (CVE-2003-0078)
5569 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5570 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5571 Martin Vuagnoux (EPFL, Ilion)]
5573 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5575 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5576 memory from it's contents. This is done with a counter that will
5577 place alternating values in each byte. This can be used to solve
5578 two issues: 1) the removal of calls to memset() by highly optimizing
5579 compilers, and 2) cleansing with other values than 0, since those can
5580 be read through on certain media, for example a swap space on disk.
5583 *) Bugfix: client side session caching did not work with external caching,
5584 because the session->cipher setting was not restored when reloading
5585 from the external cache. This problem was masked, when
5586 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5587 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5590 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5591 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5592 [Zeev Lieber <zeev-l@yahoo.com>]
5594 *) Undo an undocumented change introduced in 0.9.6e which caused
5595 repeated calls to OpenSSL_add_all_ciphers() and
5596 OpenSSL_add_all_digests() to be ignored, even after calling
5600 *) Change the default configuration reader to deal with last line not
5601 being properly terminated.
5604 *) Change X509_NAME_cmp() so it applies the special rules on handling
5605 DN values that are of type PrintableString, as well as RDNs of type
5606 emailAddress where the value has the type ia5String.
5607 [stefank@valicert.com via Richard Levitte]
5609 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5610 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5611 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5612 the bitwise-OR of the two for use by the majority of applications
5613 wanting this behaviour, and update the docs. The documented
5614 behaviour and actual behaviour were inconsistent and had been
5615 changing anyway, so this is more a bug-fix than a behavioural
5617 [Geoff Thorpe, diagnosed by Nadav Har'El]
5619 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5620 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5623 *) Fix initialization code race conditions in
5624 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5625 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5626 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5627 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5628 ssl2_get_cipher_by_char(),
5629 ssl3_get_cipher_by_char().
5630 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5632 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5633 the cached sessions are flushed, as the remove_cb() might use ex_data
5634 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5635 (see [openssl.org #212]).
5636 [Geoff Thorpe, Lutz Jaenicke]
5638 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5639 length, instead of the encoding length to d2i_ASN1_OBJECT.
5642 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5644 *) [In 0.9.6g-engine release:]
5645 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5646 [Lynn Gazis <lgazis@rainbow.com>]
5648 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5650 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5651 and get fix the header length calculation.
5652 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5653 Alon Kantor <alonk@checkpoint.com> (and others),
5656 *) Use proper error handling instead of 'assertions' in buffer
5657 overflow checks added in 0.9.6e. This prevents DoS (the
5658 assertions could call abort()).
5659 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5661 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5663 *) Add various sanity checks to asn1_get_length() to reject
5664 the ASN1 length bytes if they exceed sizeof(long), will appear
5665 negative or the content length exceeds the length of the
5667 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5669 *) Fix cipher selection routines: ciphers without encryption had no flags
5670 for the cipher strength set and where therefore not handled correctly
5671 by the selection routines (PR #130).
5674 *) Fix EVP_dsa_sha macro.
5678 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5679 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5680 that was added in OpenSSL 0.9.6d.
5682 As the countermeasure turned out to be incompatible with some
5683 broken SSL implementations, the new option is part of SSL_OP_ALL.
5684 SSL_OP_ALL is usually employed when compatibility with weird SSL
5685 implementations is desired (e.g. '-bugs' option to 's_client' and
5686 's_server'), so the new option is automatically set in many
5690 *) Changes in security patch:
5692 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5693 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5694 Air Force Materiel Command, USAF, under agreement number
5697 *) Add various sanity checks to asn1_get_length() to reject
5698 the ASN1 length bytes if they exceed sizeof(long), will appear
5699 negative or the content length exceeds the length of the
5700 supplied buffer. (CVE-2002-0659)
5701 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5703 *) Assertions for various potential buffer overflows, not known to
5705 [Ben Laurie (CHATS)]
5707 *) Various temporary buffers to hold ASCII versions of integers were
5708 too small for 64 bit platforms. (CVE-2002-0655)
5709 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5711 *) Remote buffer overflow in SSL3 protocol - an attacker could
5712 supply an oversized session ID to a client. (CVE-2002-0656)
5713 [Ben Laurie (CHATS)]
5715 *) Remote buffer overflow in SSL2 protocol - an attacker could
5716 supply an oversized client master key. (CVE-2002-0656)
5717 [Ben Laurie (CHATS)]
5719 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5721 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5722 encoded as NULL) with id-dsa-with-sha1.
5723 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5725 *) Check various X509_...() return values in apps/req.c.
5726 [Nils Larsch <nla@trustcenter.de>]
5728 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5729 an end-of-file condition would erronously be flagged, when the CRLF
5730 was just at the end of a processed block. The bug was discovered when
5731 processing data through a buffering memory BIO handing the data to a
5732 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5733 <ptsekov@syntrex.com> and Nedelcho Stanev.
5736 *) Implement a countermeasure against a vulnerability recently found
5737 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5738 before application data chunks to avoid the use of known IVs
5739 with data potentially chosen by the attacker.
5742 *) Fix length checks in ssl3_get_client_hello().
5745 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5746 to prevent ssl3_read_internal() from incorrectly assuming that
5747 ssl3_read_bytes() found application data while handshake
5748 processing was enabled when in fact s->s3->in_read_app_data was
5749 merely automatically cleared during the initial handshake.
5750 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5752 *) Fix object definitions for Private and Enterprise: they were not
5753 recognized in their shortname (=lowercase) representation. Extend
5754 obj_dat.pl to issue an error when using undefined keywords instead
5755 of silently ignoring the problem (Svenning Sorensen
5756 <sss@sss.dnsalias.net>).
5759 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5760 generators, i.e. generators other than 2 and 5. (Previously, the
5761 code did not properly initialise the 'add' and 'rem' values to
5762 BN_generate_prime().)
5764 In the new general case, we do not insist that 'generator' is
5765 actually a primitive root: This requirement is rather pointless;
5766 a generator of the order-q subgroup is just as good, if not
5770 *) Map new X509 verification errors to alerts. Discovered and submitted by
5771 Tom Wu <tom@arcot.com>.
5774 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5775 returning non-zero before the data has been completely received
5776 when using non-blocking I/O.
5777 [Bodo Moeller; problem pointed out by John Hughes]
5779 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5780 [Ben Laurie, Lutz Jaenicke]
5782 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5783 Yoram Zahavi <YoramZ@gilian.com>).
5786 *) Add information about CygWin 1.3 and on, and preserve proper
5787 configuration for the versions before that.
5788 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5790 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5791 check whether we deal with a copy of a session and do not delete from
5792 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5793 <izhar@checkpoint.com>.
5796 *) Do not store session data into the internal session cache, if it
5797 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5798 flag is set). Proposed by Aslam <aslam@funk.com>.
5801 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5805 *) [In 0.9.6d-engine release:]
5806 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5807 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5809 *) Add the configuration target linux-s390x.
5810 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5812 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5813 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5814 variable as an indication that a ClientHello message has been
5815 received. As the flag value will be lost between multiple
5816 invocations of ssl3_accept when using non-blocking I/O, the
5817 function may not be aware that a handshake has actually taken
5818 place, thus preventing a new session from being added to the
5821 To avoid this problem, we now set s->new_session to 2 instead of
5822 using a local variable.
5823 [Lutz Jaenicke, Bodo Moeller]
5825 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5826 if the SSL_R_LENGTH_MISMATCH error is detected.
5827 [Geoff Thorpe, Bodo Moeller]
5829 *) New 'shared_ldflag' column in Configure platform table.
5832 *) Fix EVP_CIPHER_mode macro.
5833 ["Dan S. Camper" <dan@bti.net>]
5835 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5836 type, we must throw them away by setting rr->length to 0.
5837 [D P Chang <dpc@qualys.com>]
5839 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5841 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5842 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5843 worked incorrectly for those cases where range = 10..._2 and
5844 3*range is two bits longer than range.)
5847 *) Only add signing time to PKCS7 structures if it is not already
5851 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5852 OBJ_ld_ce should be OBJ_id_ce.
5853 Also some ip-pda OIDs in crypto/objects/objects.txt were
5854 incorrect (cf. RFC 3039).
5855 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5857 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5858 returns early because it has nothing to do.
5859 [Andy Schneider <andy.schneider@bjss.co.uk>]
5861 *) [In 0.9.6c-engine release:]
5862 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5863 [Andy Schneider <andy.schneider@bjss.co.uk>]
5865 *) [In 0.9.6c-engine release:]
5866 Add support for Cryptographic Appliance's keyserver technology.
5867 (Use engine 'keyclient')
5868 [Cryptographic Appliances and Geoff Thorpe]
5870 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5871 is called via tools/c89.sh because arguments have to be
5872 rearranged (all '-L' options must appear before the first object
5874 [Richard Shapiro <rshapiro@abinitio.com>]
5876 *) [In 0.9.6c-engine release:]
5877 Add support for Broadcom crypto accelerator cards, backported
5879 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5881 *) [In 0.9.6c-engine release:]
5882 Add support for SureWare crypto accelerator cards from
5883 Baltimore Technologies. (Use engine 'sureware')
5884 [Baltimore Technologies and Mark Cox]
5886 *) [In 0.9.6c-engine release:]
5887 Add support for crypto accelerator cards from Accelerated
5888 Encryption Processing, www.aep.ie. (Use engine 'aep')
5889 [AEP Inc. and Mark Cox]
5891 *) Add a configuration entry for gcc on UnixWare.
5892 [Gary Benson <gbenson@redhat.com>]
5894 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5895 messages are stored in a single piece (fixed-length part and
5896 variable-length part combined) and fix various bugs found on the way.
5899 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5900 instead. BIO_gethostbyname() does not know what timeouts are
5901 appropriate, so entries would stay in cache even when they have
5903 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5905 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5906 faced with a pathologically small ClientHello fragment that does
5907 not contain client_version: Instead of aborting with an error,
5908 simply choose the highest available protocol version (i.e.,
5909 TLS 1.0 unless it is disabled). In practice, ClientHello
5910 messages are never sent like this, but this change gives us
5911 strictly correct behaviour at least for TLS.
5914 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5915 never resets s->method to s->ctx->method when called from within
5916 one of the SSL handshake functions.
5917 [Bodo Moeller; problem pointed out by Niko Baric]
5919 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5920 (sent using the client's version number) if client_version is
5921 smaller than the protocol version in use. Also change
5922 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5923 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5924 the client will at least see that alert.
5927 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5931 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5932 client receives HelloRequest while in a handshake.
5933 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5935 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5936 should end in 'break', not 'goto end' which circuments various
5937 cleanups done in state SSL_ST_OK. But session related stuff
5938 must be disabled for SSL_ST_OK in the case that we just sent a
5941 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5942 before just sending a HelloRequest.
5943 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5945 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5946 reveal whether illegal block cipher padding was found or a MAC
5947 verification error occured. (Neither SSLerr() codes nor alerts
5948 are directly visible to potential attackers, but the information
5949 may leak via logfiles.)
5951 Similar changes are not required for the SSL 2.0 implementation
5952 because the number of padding bytes is sent in clear for SSL 2.0,
5953 and the extra bytes are just ignored. However ssl/s2_pkt.c
5954 failed to verify that the purported number of padding bytes is in
5958 *) Add OpenUNIX-8 support including shared libraries
5959 (Boyd Lynn Gerber <gerberb@zenez.com>).
5962 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5963 'wristwatch attack' using huge encoding parameters (cf.
5964 James H. Manger's CRYPTO 2001 paper). Note that the
5965 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5966 encoding parameters and hence was not vulnerable.
5969 *) BN_sqr() bug fix.
5970 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5972 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5973 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5974 followed by modular reduction.
5975 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5977 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5978 equivalent based on BN_pseudo_rand() instead of BN_rand().
5981 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5982 This function was broken, as the check for a new client hello message
5983 to handle SGC did not allow these large messages.
5984 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5987 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5990 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5991 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5994 *) Rework the configuration and shared library support for Tru64 Unix.
5995 The configuration part makes use of modern compiler features and
5996 still retains old compiler behavior for those that run older versions
5997 of the OS. The shared library support part includes a variant that
5998 uses the RPATH feature, and is available through the special
5999 configuration target "alpha-cc-rpath", which will never be selected
6001 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6003 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6004 with the same message size as in ssl3_get_certificate_request().
6005 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6006 messages might inadvertently be reject as too long.
6007 [Petr Lampa <lampa@fee.vutbr.cz>]
6009 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6012 *) Modified SSL library such that the verify_callback that has been set
6013 specificly for an SSL object with SSL_set_verify() is actually being
6014 used. Before the change, a verify_callback set with this function was
6015 ignored and the verify_callback() set in the SSL_CTX at the time of
6016 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6017 to allow the necessary settings.
6020 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6021 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6022 done automatically (in contradiction to the requirements of the C
6023 standard). This made problems when used from OpenSSH.
6026 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6027 dh->length and always used
6029 BN_rand_range(priv_key, dh->p).
6031 BN_rand_range() is not necessary for Diffie-Hellman, and this
6032 specific range makes Diffie-Hellman unnecessarily inefficient if
6033 dh->length (recommended exponent length) is much smaller than the
6034 length of dh->p. We could use BN_rand_range() if the order of
6035 the subgroup was stored in the DH structure, but we only have
6040 BN_rand(priv_key, l, ...)
6042 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6048 RSA_eay_public_encrypt
6049 RSA_eay_private_decrypt
6050 RSA_eay_private_encrypt (signing)
6051 RSA_eay_public_decrypt (signature verification)
6053 (default implementations for RSA_public_encrypt,
6054 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6055 always reject numbers >= n.
6058 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6059 to synchronize access to 'locking_thread'. This is necessary on
6060 systems where access to 'locking_thread' (an 'unsigned long'
6061 variable) is not atomic.
6064 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6065 *before* setting the 'crypto_lock_rand' flag. The previous code had
6066 a race condition if 0 is a valid thread ID.
6067 [Travis Vitek <vitek@roguewave.com>]
6069 *) Add support for shared libraries under Irix.
6070 [Albert Chin-A-Young <china@thewrittenword.com>]
6072 *) Add configuration option to build on Linux on both big-endian and
6074 [Ralf Baechle <ralf@uni-koblenz.de>]
6076 *) Add the possibility to create shared libraries on HP-UX.
6079 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6081 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6082 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6083 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6084 PRNG state recovery was possible based on the output of
6085 one PRNG request appropriately sized to gain knowledge on
6086 'md' followed by enough consecutive 1-byte PRNG requests
6087 to traverse all of 'state'.
6089 1. When updating 'md_local' (the current thread's copy of 'md')
6090 during PRNG output generation, hash all of the previous
6091 'md_local' value, not just the half used for PRNG output.
6093 2. Make the number of bytes from 'state' included into the hash
6094 independent from the number of PRNG bytes requested.
6096 The first measure alone would be sufficient to avoid
6097 Markku-Juhani's attack. (Actually it had never occurred
6098 to me that the half of 'md_local' used for chaining was the
6099 half from which PRNG output bytes were taken -- I had always
6100 assumed that the secret half would be used.) The second
6101 measure makes sure that additional data from 'state' is never
6102 mixed into 'md_local' in small portions; this heuristically
6103 further strengthens the PRNG.
6106 *) Fix crypto/bn/asm/mips3.s.
6109 *) When only the key is given to "enc", the IV is undefined. Print out
6110 an error message in this case.
6113 *) Handle special case when X509_NAME is empty in X509 printing routines.
6116 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6117 positive and less than q.
6120 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6121 used: it isn't thread safe and the add_lock_callback should handle
6123 [Paul Rose <Paul.Rose@bridge.com>]
6125 *) Verify that incoming data obeys the block size in
6126 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6130 [Ulf Möller, Bodo Möller]
6132 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6133 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6134 when fixing the server behaviour for backwards-compatible 'client
6135 hello' messages. (Note that the attack is impractical against
6136 SSL 3.0 and TLS 1.0 anyway because length and version checking
6137 means that the probability of guessing a valid ciphertext is
6138 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6141 Before 0.9.5, the countermeasure (hide the error by generating a
6142 random 'decryption result') did not work properly because
6143 ERR_clear_error() was missing, meaning that SSL_get_error() would
6144 detect the supposedly ignored error.
6146 Both problems are now fixed.
6149 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6150 (previously it was 1024).
6153 *) Fix for compatibility mode trust settings: ignore trust settings
6154 unless some valid trust or reject settings are present.
6157 *) Fix for blowfish EVP: its a variable length cipher.
6160 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6161 parameters in DSA public key structures and return an error in the
6162 DSA routines if parameters are absent.
6165 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6166 in the current directory if neither $RANDFILE nor $HOME was set.
6167 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6168 caused some confusion to Windows users who haven't defined $HOME.
6169 Thus RAND_file_name() is changed again: e_os.h can define a
6170 DEFAULT_HOME, which will be used if $HOME is not set.
6171 For Windows, we use "C:"; on other platforms, we still require
6172 environment variables.
6174 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6175 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6176 having multiple threads call RAND_poll() concurrently.
6179 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6180 combination of a flag and a thread ID variable.
6181 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6182 flag), *other* threads can enter ssleay_add_bytes without obeying
6183 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6184 that they do not hold after the first thread unsets add_do_not_lock).
6187 *) Change bctest again: '-x' expressions are not available in all
6191 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6193 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6194 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6196 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6197 the default extension for executables, if any. Also, make the perl
6198 scripts that use symlink() to test if it really exists and use "cp"
6199 if it doesn't. All this made OpenSSL compilable and installable in
6203 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6204 If SEQUENCE is length is indefinite just set c->slen to the total
6205 amount of data available.
6206 [Steve Henson, reported by shige@FreeBSD.org]
6207 [This change does not apply to 0.9.7.]
6209 *) Change bctest to avoid here-documents inside command substitution
6210 (workaround for FreeBSD /bin/sh bug).
6211 For compatibility with Ultrix, avoid shell functions (introduced
6212 in the bctest version that searches along $PATH).
6215 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6216 with des_encrypt() defined on some operating systems, like Solaris
6220 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6221 On the Importance of Eliminating Errors in Cryptographic
6222 Computations, J. Cryptology 14 (2001) 2, 101-119,
6223 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6226 *) MIPS assembler BIGNUM division bug fix.
6229 *) Disabled incorrect Alpha assembler code.
6232 *) Fix PKCS#7 decode routines so they correctly update the length
6233 after reading an EOC for the EXPLICIT tag.
6235 [This change does not apply to 0.9.7.]
6237 *) Fix bug in PKCS#12 key generation routines. This was triggered
6238 if a 3DES key was generated with a 0 initial byte. Include
6239 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6240 (but broken) behaviour.
6243 *) Enhance bctest to search for a working bc along $PATH and print
6245 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6247 *) Fix memory leaks in err.c: free err_data string if necessary;
6248 don't write to the wrong index in ERR_set_error_data.
6251 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6255 *) Replace rdtsc with _emit statements for VC++ version 5.
6256 [Jeremy Cooper <jeremy@baymoo.org>]
6258 *) Make it possible to reuse SSLv2 sessions.
6261 *) In copy_email() check for >= 0 as a return value for
6262 X509_NAME_get_index_by_NID() since 0 is a valid index.
6263 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6265 *) Avoid coredump with unsupported or invalid public keys by checking if
6266 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6267 PKCS7_verify() fails with non detached data.
6270 *) Don't use getenv in library functions when run as setuid/setgid.
6271 New function OPENSSL_issetugid().
6274 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6275 due to incorrect handling of multi-threading:
6277 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6279 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6281 3. Count how many times MemCheck_off() has been called so that
6282 nested use can be treated correctly. This also avoids
6283 inband-signalling in the previous code (which relied on the
6284 assumption that thread ID 0 is impossible).
6287 *) Add "-rand" option also to s_client and s_server.
6290 *) Fix CPU detection on Irix 6.x.
6291 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6292 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6294 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6297 [This change does not apply to 0.9.7.]
6299 *) Use the cached encoding of an X509_NAME structure rather than
6300 copying it. This is apparently the reason for the libsafe "errors"
6301 but the code is actually correct.
6304 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6305 Bleichenbacher's DSA attack.
6306 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6307 to be set and top=0 forces the highest bit to be set; top=-1 is new
6308 and leaves the highest bit random.
6309 [Ulf Moeller, Bodo Moeller]
6311 *) In the NCONF_...-based implementations for CONF_... queries
6312 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6313 a temporary CONF structure with the data component set to NULL
6314 (which gives segmentation faults in lh_retrieve).
6315 Instead, use NULL for the CONF pointer in CONF_get_string and
6316 CONF_get_number (which may use environment variables) and directly
6317 return NULL from CONF_get_section.
6320 *) Fix potential buffer overrun for EBCDIC.
6323 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6324 keyUsage if basicConstraints absent for a CA.
6327 *) Make SMIME_write_PKCS7() write mail header values with a format that
6328 is more generally accepted (no spaces before the semicolon), since
6329 some programs can't parse those values properly otherwise. Also make
6330 sure BIO's that break lines after each write do not create invalid
6334 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6335 macros previously used would not encode an empty SEQUENCE OF
6336 and break the signature.
6338 [This change does not apply to 0.9.7.]
6340 *) Zero the premaster secret after deriving the master secret in
6344 *) Add some EVP_add_digest_alias registrations (as found in
6345 OpenSSL_add_all_digests()) to SSL_library_init()
6346 aka OpenSSL_add_ssl_algorithms(). This provides improved
6347 compatibility with peers using X.509 certificates
6348 with unconventional AlgorithmIdentifier OIDs.
6351 *) Fix for Irix with NO_ASM.
6352 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6354 *) ./config script fixes.
6355 [Ulf Moeller, Richard Levitte]
6357 *) Fix 'openssl passwd -1'.
6360 *) Change PKCS12_key_gen_asc() so it can cope with non null
6361 terminated strings whose length is passed in the passlen
6362 parameter, for example from PEM callbacks. This was done
6363 by adding an extra length parameter to asc2uni().
6364 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6366 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6367 call failed, free the DSA structure.
6370 *) Fix to uni2asc() to cope with zero length Unicode strings.
6371 These are present in some PKCS#12 files.
6374 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6375 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6376 when writing a 32767 byte record.
6377 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6379 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6380 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6382 (RSA objects have a reference count access to which is protected
6383 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6384 so they are meant to be shared between threads.)
6385 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6386 "Reddie, Steven" <Steven.Reddie@ca.com>]
6388 *) Fix a deadlock in CRYPTO_mem_leaks().
6391 *) Use better test patterns in bntest.
6394 *) rand_win.c fix for Borland C.
6397 *) BN_rshift bugfix for n == 0.
6400 *) Add a 'bctest' script that checks for some known 'bc' bugs
6401 so that 'make test' does not abort just because 'bc' is broken.
6404 *) Store verify_result within SSL_SESSION also for client side to
6405 avoid potential security hole. (Re-used sessions on the client side
6406 always resulted in verify_result==X509_V_OK, not using the original
6407 result of the server certificate verification.)
6410 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6411 SSL3_RT_APPLICATION_DATA, return 0.
6412 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6416 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6417 releases, have been re-implemented by renaming the previous
6418 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6419 and ssl3_read_internal, respectively, and adding 'peek' parameters
6420 to them. The new ssl[23]_{read,peek} functions are calls to
6421 ssl[23]_read_internal with the 'peek' flag set appropriately.
6422 A 'peek' parameter has also been added to ssl3_read_bytes, which
6423 does the actual work for ssl3_read_internal.
6426 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6427 the method-specific "init()" handler. Also clean up ex_data after
6428 calling the method-specific "finish()" handler. Previously, this was
6429 happening the other way round.
6432 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6433 The previous value, 12, was not always sufficient for BN_mod_exp().
6436 *) Make sure that shared libraries get the internal name engine with
6437 the full version number and not just 0. This should mark the
6438 shared libraries as not backward compatible. Of course, this should
6439 be changed again when we can guarantee backward binary compatibility.
6442 *) Fix typo in get_cert_by_subject() in by_dir.c
6443 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6445 *) Rework the system to generate shared libraries:
6447 - Make note of the expected extension for the shared libraries and
6448 if there is a need for symbolic links from for example libcrypto.so.0
6449 to libcrypto.so.0.9.7. There is extended info in Configure for
6452 - Make as few rebuilds of the shared libraries as possible.
6454 - Still avoid linking the OpenSSL programs with the shared libraries.
6456 - When installing, install the shared libraries separately from the
6460 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6462 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6463 and not in SSL_clear because the latter is also used by the
6464 accept/connect functions; previously, the settings made by
6465 SSL_set_read_ahead would be lost during the handshake.
6466 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6468 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6469 Previously, it would create entries for disableed algorithms no
6473 *) Added several new manual pages for SSL_* function.
6476 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6478 *) In ssl23_get_client_hello, generate an error message when faced
6479 with an initial SSL 3.0/TLS record that is too small to contain the
6480 first two bytes of the ClientHello message, i.e. client_version.
6481 (Note that this is a pathologic case that probably has never happened
6482 in real life.) The previous approach was to use the version number
6483 from the record header as a substitute; but our protocol choice
6484 should not depend on that one because it is not authenticated
6485 by the Finished messages.
6488 *) More robust randomness gathering functions for Windows.
6489 [Jeffrey Altman <jaltman@columbia.edu>]
6491 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6492 not set then we don't setup the error code for issuer check errors
6493 to avoid possibly overwriting other errors which the callback does
6494 handle. If an application does set the flag then we assume it knows
6495 what it is doing and can handle the new informational codes
6499 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6500 a general "ANY" type, as such it should be able to decode anything
6501 including tagged types. However it didn't check the class so it would
6502 wrongly interpret tagged types in the same way as their universal
6503 counterpart and unknown types were just rejected. Changed so that the
6504 tagged and unknown types are handled in the same way as a SEQUENCE:
6505 that is the encoding is stored intact. There is also a new type
6506 "V_ASN1_OTHER" which is used when the class is not universal, in this
6507 case we have no idea what the actual type is so we just lump them all
6511 *) On VMS, stdout may very well lead to a file that is written to
6512 in a record-oriented fashion. That means that every write() will
6513 write a separate record, which will be read separately by the
6514 programs trying to read from it. This can be very confusing.
6516 The solution is to put a BIO filter in the way that will buffer
6517 text until a linefeed is reached, and then write everything a
6518 line at a time, so every record written will be an actual line,
6519 not chunks of lines and not (usually doesn't happen, but I've
6520 seen it once) several lines in one record. BIO_f_linebuffer() is
6523 Currently, it's a VMS-only method, because that's where it has
6524 been tested well enough.
6527 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6528 it can return incorrect results.
6529 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6530 but it was in 0.9.6-beta[12].)
6533 *) Disable the check for content being present when verifying detached
6534 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6535 include zero length content when signing messages.
6538 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6539 BIO_ctrl (for BIO pairs).
6542 *) Add DSO method for VMS.
6545 *) Bug fix: Montgomery multiplication could produce results with the
6549 *) Add RPM specification openssl.spec and modify it to build three
6550 packages. The default package contains applications, application
6551 documentation and run-time libraries. The devel package contains
6552 include files, static libraries and function documentation. The
6553 doc package contains the contents of the doc directory. The original
6554 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6557 *) Add a large number of documentation files for many SSL routines.
6558 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6560 *) Add a configuration entry for Sony News 4.
6561 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6563 *) Don't set the two most significant bits to one when generating a
6564 random number < q in the DSA library.
6567 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6568 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6569 the underlying transport is blocking) if a handshake took place.
6570 (The default behaviour is needed by applications such as s_client
6571 and s_server that use select() to determine when to use SSL_read;
6572 but for applications that know in advance when to expect data, it
6573 just makes things more complicated.)
6576 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6580 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6581 work better on such systems.
6582 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6584 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6585 Update PKCS12_parse() so it copies the friendlyName and the
6586 keyid to the certificates aux info.
6589 *) Fix bug in PKCS7_verify() which caused an infinite loop
6590 if there was more than one signature.
6591 [Sven Uszpelkat <su@celocom.de>]
6593 *) Major change in util/mkdef.pl to include extra information
6594 about each symbol, as well as presentig variables as well
6595 as functions. This change means that there's n more need
6596 to rebuild the .num files when some algorithms are excluded.
6599 *) Allow the verify time to be set by an application,
6600 rather than always using the current time.
6603 *) Phase 2 verify code reorganisation. The certificate
6604 verify code now looks up an issuer certificate by a
6605 number of criteria: subject name, authority key id
6606 and key usage. It also verifies self signed certificates
6607 by the same criteria. The main comparison function is
6608 X509_check_issued() which performs these checks.
6610 Lot of changes were necessary in order to support this
6611 without completely rewriting the lookup code.
6613 Authority and subject key identifier are now cached.
6615 The LHASH 'certs' is X509_STORE has now been replaced
6616 by a STACK_OF(X509_OBJECT). This is mainly because an
6617 LHASH can't store or retrieve multiple objects with
6618 the same hash value.
6620 As a result various functions (which were all internal
6621 use only) have changed to handle the new X509_STORE
6622 structure. This will break anything that messed round
6623 with X509_STORE internally.
6625 The functions X509_STORE_add_cert() now checks for an
6626 exact match, rather than just subject name.
6628 The X509_STORE API doesn't directly support the retrieval
6629 of multiple certificates matching a given criteria, however
6630 this can be worked round by performing a lookup first
6631 (which will fill the cache with candidate certificates)
6632 and then examining the cache for matches. This is probably
6633 the best we can do without throwing out X509_LOOKUP
6634 entirely (maybe later...).
6636 The X509_VERIFY_CTX structure has been enhanced considerably.
6638 All certificate lookup operations now go via a get_issuer()
6639 callback. Although this currently uses an X509_STORE it
6640 can be replaced by custom lookups. This is a simple way
6641 to bypass the X509_STORE hackery necessary to make this
6642 work and makes it possible to use more efficient techniques
6643 in future. A very simple version which uses a simple
6644 STACK for its trusted certificate store is also provided
6645 using X509_STORE_CTX_trusted_stack().
6647 The verify_cb() and verify() callbacks now have equivalents
6648 in the X509_STORE_CTX structure.
6650 X509_STORE_CTX also has a 'flags' field which can be used
6651 to customise the verify behaviour.
6654 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6655 excludes S/MIME capabilities.
6658 *) When a certificate request is read in keep a copy of the
6659 original encoding of the signed data and use it when outputing
6660 again. Signatures then use the original encoding rather than
6661 a decoded, encoded version which may cause problems if the
6662 request is improperly encoded.
6665 *) For consistency with other BIO_puts implementations, call
6666 buffer_write(b, ...) directly in buffer_puts instead of calling
6669 In BIO_puts, increment b->num_write as in BIO_write.
6670 [Peter.Sylvester@EdelWeb.fr]
6672 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6673 BN_zero, we may not return a BIGNUM with an array consisting of
6677 *) Avoid calling abort() from within the library when problems are
6678 detected, except if preprocessor symbols have been defined
6679 (such as REF_CHECK, BN_DEBUG etc.).
6682 *) New openssl application 'rsautl'. This utility can be
6683 used for low level RSA operations. DER public key
6684 BIO/fp routines also added.
6687 *) New Configure entry and patches for compiling on QNX 4.
6688 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6690 *) A demo state-machine implementation was sponsored by
6691 Nuron (http://www.nuron.com/) and is now available in
6692 demos/state_machine.
6695 *) New options added to the 'dgst' utility for signature
6696 generation and verification.
6699 *) Unrecognized PKCS#7 content types are now handled via a
6700 catch all ASN1_TYPE structure. This allows unsupported
6701 types to be stored as a "blob" and an application can
6702 encode and decode it manually.
6705 *) Fix various signed/unsigned issues to make a_strex.c
6707 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6709 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6710 length if passed a buffer. ASN1_INTEGER_to_BN failed
6711 if passed a NULL BN and its argument was negative.
6712 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6714 *) Modification to PKCS#7 encoding routines to output definite
6715 length encoding. Since currently the whole structures are in
6716 memory there's not real point in using indefinite length
6717 constructed encoding. However if OpenSSL is compiled with
6718 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6721 *) Added BIO_vprintf() and BIO_vsnprintf().
6724 *) Added more prefixes to parse for in the the strings written
6725 through a logging bio, to cover all the levels that are available
6726 through syslog. The prefixes are now:
6728 PANIC, EMERG, EMR => LOG_EMERG
6729 ALERT, ALR => LOG_ALERT
6730 CRIT, CRI => LOG_CRIT
6731 ERROR, ERR => LOG_ERR
6732 WARNING, WARN, WAR => LOG_WARNING
6733 NOTICE, NOTE, NOT => LOG_NOTICE
6734 INFO, INF => LOG_INFO
6735 DEBUG, DBG => LOG_DEBUG
6737 and as before, if none of those prefixes are present at the
6738 beginning of the string, LOG_ERR is chosen.
6740 On Win32, the LOG_* levels are mapped according to this:
6742 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6743 LOG_WARNING => EVENTLOG_WARNING_TYPE
6744 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6748 *) Made it possible to reconfigure with just the configuration
6749 argument "reconf" or "reconfigure". The command line arguments
6750 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6751 and are retrieved from there when reconfiguring.
6755 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6757 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6760 *) The obj_dat.pl script was messing up the sorting of object
6761 names. The reason was that it compared the quoted version
6762 of strings as a result "OCSP" > "OCSP Signing" because
6763 " > SPACE. Changed script to store unquoted versions of
6764 names and add quotes on output. It was also omitting some
6765 names from the lookup table if they were given a default
6766 value (that is if SN is missing it is given the same
6767 value as LN and vice versa), these are now added on the
6768 grounds that if an object has a name we should be able to
6769 look it up. Finally added warning output when duplicate
6770 short or long names are found.
6773 *) Changes needed for Tandem NSK.
6774 [Scott Uroff <scott@xypro.com>]
6776 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6777 RSA_padding_check_SSLv23(), special padding was never detected
6778 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6779 version rollback attacks was not effective.
6781 In s23_clnt.c, don't use special rollback-attack detection padding
6782 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6783 client; similarly, in s23_srvr.c, don't do the rollback check if
6784 SSL 2.0 is the only protocol enabled in the server.
6787 *) Make it possible to get hexdumps of unprintable data with 'openssl
6788 asn1parse'. By implication, the functions ASN1_parse_dump() and
6789 BIO_dump_indent() are added.
6792 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6793 these print out strings and name structures based on various
6794 flags including RFC2253 support and proper handling of
6795 multibyte characters. Added options to the 'x509' utility
6796 to allow the various flags to be set.
6799 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6800 Also change the functions X509_cmp_current_time() and
6801 X509_gmtime_adj() work with an ASN1_TIME structure,
6802 this will enable certificates using GeneralizedTime in validity
6803 dates to be checked.
6806 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6807 negative public key encodings) on by default,
6808 NO_NEG_PUBKEY_BUG can be set to disable it.
6811 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6812 content octets. An i2c_ASN1_OBJECT is unnecessary because
6813 the encoding can be trivially obtained from the structure.
6816 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6817 not read locks (CRYPTO_r_[un]lock).
6820 *) A first attempt at creating official support for shared
6821 libraries through configuration. I've kept it so the
6822 default is static libraries only, and the OpenSSL programs
6823 are always statically linked for now, but there are
6824 preparations for dynamic linking in place.
6825 This has been tested on Linux and Tru64.
6828 *) Randomness polling function for Win9x, as described in:
6829 Peter Gutmann, Software Generation of Practically Strong
6833 *) Fix so PRNG is seeded in req if using an already existing
6837 *) New options to smime application. -inform and -outform
6838 allow alternative formats for the S/MIME message including
6839 PEM and DER. The -content option allows the content to be
6840 specified separately. This should allow things like Netscape
6841 form signing output easier to verify.
6844 *) Fix the ASN1 encoding of tags using the 'long form'.
6847 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6848 STRING types. These convert content octets to and from the
6849 underlying type. The actual tag and length octets are
6850 already assumed to have been read in and checked. These
6851 are needed because all other string types have virtually
6852 identical handling apart from the tag. By having versions
6853 of the ASN1 functions that just operate on content octets
6854 IMPLICIT tagging can be handled properly. It also allows
6855 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6856 and ASN1_INTEGER are identical apart from the tag.
6859 *) Change the handling of OID objects as follows:
6861 - New object identifiers are inserted in objects.txt, following
6862 the syntax given in objects.README.
6863 - objects.pl is used to process obj_mac.num and create a new
6865 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6868 This is currently kind of a hack, and the perl code in objects.pl
6869 isn't very elegant, but it works as I intended. The simplest way
6870 to check that it worked correctly is to look in obj_dat.h and
6871 check the array nid_objs and make sure the objects haven't moved
6872 around (this is important!). Additions are OK, as well as
6873 consistent name changes.
6876 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6879 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6880 The given file adds to whatever has already been seeded into the
6881 random pool through the RANDFILE configuration file option or
6882 environment variable, or the default random state file.
6885 *) mkstack.pl now sorts each macro group into lexical order.
6886 Previously the output order depended on the order the files
6887 appeared in the directory, resulting in needless rewriting
6891 *) Patches to make OpenSSL compile under Win32 again. Mostly
6892 work arounds for the VC++ problem that it treats func() as
6893 func(void). Also stripped out the parts of mkdef.pl that
6894 added extra typesafe functions: these no longer exist.
6897 *) Reorganisation of the stack code. The macros are now all
6898 collected in safestack.h . Each macro is defined in terms of
6899 a "stack macro" of the form SKM_<name>(type, a, b). The
6900 DEBUG_SAFESTACK is now handled in terms of function casts,
6901 this has the advantage of retaining type safety without the
6902 use of additional functions. If DEBUG_SAFESTACK is not defined
6903 then the non typesafe macros are used instead. Also modified the
6904 mkstack.pl script to handle the new form. Needs testing to see
6905 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6906 the default if no major problems. Similar behaviour for ASN1_SET_OF
6907 and PKCS12_STACK_OF.
6910 *) When some versions of IIS use the 'NET' form of private key the
6911 key derivation algorithm is different. Normally MD5(password) is
6912 used as a 128 bit RC4 key. In the modified case
6913 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6914 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6915 as the old Netscape_RSA functions except they have an additional
6916 'sgckey' parameter which uses the modified algorithm. Also added
6917 an -sgckey command line option to the rsa utility. Thanks to
6918 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6919 algorithm to openssl-dev.
6922 *) The evp_local.h macros were using 'c.##kname' which resulted in
6923 invalid expansion on some systems (SCO 5.0.5 for example).
6924 Corrected to 'c.kname'.
6925 [Phillip Porch <root@theporch.com>]
6927 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6928 a STACK of email addresses from a certificate or request, these look
6929 in the subject name and the subject alternative name extensions and
6930 omit any duplicate addresses.
6933 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6934 This makes DSA verification about 2 % faster.
6937 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6938 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6939 plus overhead for 1024 bit moduli).
6940 This makes exponentiations about 0.5 % faster for 1024 bit
6941 exponents (as measured by "openssl speed rsa2048").
6944 *) Rename memory handling macros to avoid conflicts with other
6946 Malloc => OPENSSL_malloc
6947 Malloc_locked => OPENSSL_malloc_locked
6948 Realloc => OPENSSL_realloc
6949 Free => OPENSSL_free
6952 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6953 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6956 *) CygWin32 support.
6957 [John Jarvie <jjarvie@newsguy.com>]
6959 *) The type-safe stack code has been rejigged. It is now only compiled
6960 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6961 by default all type-specific stack functions are "#define"d back to
6962 standard stack functions. This results in more streamlined output
6963 but retains the type-safety checking possibilities of the original
6967 *) The STACK code has been cleaned up, and certain type declarations
6968 that didn't make a lot of sense have been brought in line. This has
6969 also involved a cleanup of sorts in safestack.h to more correctly
6970 map type-safe stack functions onto their plain stack counterparts.
6971 This work has also resulted in a variety of "const"ifications of
6972 lots of the code, especially "_cmp" operations which should normally
6973 be prototyped with "const" parameters anyway.
6976 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6977 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6978 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6979 where all of 'md' is used each time the PRNG is used, but 'state'
6980 is used only indexed by a cyclic counter. As entropy may not be
6981 well distributed from the beginning, 'md' is important as a
6982 chaining variable. However, the output function chains only half
6983 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6984 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6985 in all of 'state' being rewritten, with the new values depending
6986 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6989 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6990 the handshake is continued after ssl_verify_cert_chain();
6991 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6992 can lead to 'unexplainable' connection aborts later.
6993 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6995 *) Major EVP API cipher revision.
6996 Add hooks for extra EVP features. This allows various cipher
6997 parameters to be set in the EVP interface. Support added for variable
6998 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6999 setting of RC2 and RC5 parameters.
7001 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7004 Remove lots of duplicated code from the EVP library. For example *every*
7005 cipher init() function handles the 'iv' in the same way according to the
7006 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7007 for CFB and OFB modes they zero ctx->num.
7009 New functionality allows removal of S/MIME code RC2 hack.
7011 Most of the routines have the same form and so can be declared in terms
7014 By shifting this to the top level EVP_CipherInit() it can be removed from
7015 all individual ciphers. If the cipher wants to handle IVs or keys
7016 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7019 Change lots of functions like EVP_EncryptUpdate() to now return a
7020 value: although software versions of the algorithms cannot fail
7021 any installed hardware versions can.
7024 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7025 this option is set, tolerate broken clients that send the negotiated
7026 protocol version number instead of the requested protocol version
7030 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7031 i.e. non-zero for export ciphersuites, zero otherwise.
7032 Previous versions had this flag inverted, inconsistent with
7033 rsa_tmp_cb (..._TMP_RSA_CB).
7034 [Bodo Moeller; problem reported by Amit Chopra]
7036 *) Add missing DSA library text string. Work around for some IIS
7037 key files with invalid SEQUENCE encoding.
7040 *) Add a document (doc/standards.txt) that list all kinds of standards
7041 and so on that are implemented in OpenSSL.
7044 *) Enhance c_rehash script. Old version would mishandle certificates
7045 with the same subject name hash and wouldn't handle CRLs at all.
7046 Added -fingerprint option to crl utility, to support new c_rehash
7050 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7053 *) Fix for SSL server purpose checking. Server checking was
7054 rejecting certificates which had extended key usage present
7055 but no ssl client purpose.
7056 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7058 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7059 is a little unclear about how a blank password is handled.
7060 Since the password in encoded as a BMPString with terminating
7061 double NULL a zero length password would end up as just the
7062 double NULL. However no password at all is different and is
7063 handled differently in the PKCS#12 key generation code. NS
7064 treats a blank password as zero length. MSIE treats it as no
7065 password on export: but it will try both on import. We now do
7066 the same: PKCS12_parse() tries zero length and no password if
7067 the password is set to "" or NULL (NULL is now a valid password:
7068 it wasn't before) as does the pkcs12 application.
7071 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7072 perror when PEM_read_bio_X509_REQ fails, the error message must
7073 be obtained from the error queue.
7076 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7077 it in ERR_remove_state if appropriate, and change ERR_get_state
7078 accordingly to avoid race conditions (this is necessary because
7079 thread_hash is no longer constant once set).
7082 *) Bugfix for linux-elf makefile.one.
7085 *) RSA_get_default_method() will now cause a default
7086 RSA_METHOD to be chosen if one doesn't exist already.
7087 Previously this was only set during a call to RSA_new()
7088 or RSA_new_method(NULL) meaning it was possible for
7089 RSA_get_default_method() to return NULL.
7092 *) Added native name translation to the existing DSO code
7093 that will convert (if the flag to do so is set) filenames
7094 that are sufficiently small and have no path information
7095 into a canonical native form. Eg. "blah" converted to
7096 "libblah.so" or "blah.dll" etc.
7099 *) New function ERR_error_string_n(e, buf, len) which is like
7100 ERR_error_string(e, buf), but writes at most 'len' bytes
7101 including the 0 terminator. For ERR_error_string_n, 'buf'
7103 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7105 *) CONF library reworked to become more general. A new CONF
7106 configuration file reader "class" is implemented as well as a
7107 new functions (NCONF_*, for "New CONF") to handle it. The now
7108 old CONF_* functions are still there, but are reimplemented to
7109 work in terms of the new functions. Also, a set of functions
7110 to handle the internal storage of the configuration data is
7111 provided to make it easier to write new configuration file
7112 reader "classes" (I can definitely see something reading a
7113 configuration file in XML format, for example), called _CONF_*,
7114 or "the configuration storage API"...
7116 The new configuration file reading functions are:
7118 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7119 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7121 NCONF_default, NCONF_WIN32
7123 NCONF_dump_fp, NCONF_dump_bio
7125 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7126 NCONF_new creates a new CONF object. This works in the same way
7127 as other interfaces in OpenSSL, like the BIO interface.
7128 NCONF_dump_* dump the internal storage of the configuration file,
7129 which is useful for debugging. All other functions take the same
7130 arguments as the old CONF_* functions wth the exception of the
7131 first that must be a `CONF *' instead of a `LHASH *'.
7133 To make it easer to use the new classes with the old CONF_* functions,
7134 the function CONF_set_default_method is provided.
7137 *) Add '-tls1' option to 'openssl ciphers', which was already
7138 mentioned in the documentation but had not been implemented.
7139 (This option is not yet really useful because even the additional
7140 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7143 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7144 OpenSSL-based applications) load shared libraries and bind to
7145 them in a portable way.
7146 [Geoff Thorpe, with contributions from Richard Levitte]
7148 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7150 *) Make sure _lrotl and _lrotr are only used with MSVC.
7152 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7153 (the default implementation of RAND_status).
7155 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7156 to '-clrext' (= clear extensions), as intended and documented.
7157 [Bodo Moeller; inconsistency pointed out by Michael Attili
7160 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7161 was larger than the MD block size.
7162 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7164 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7165 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7166 using the passed key: if the passed key was a private key the result
7167 of X509_print(), for example, would be to print out all the private key
7171 *) des_quad_cksum() byte order bug fix.
7172 [Ulf Möller, using the problem description in krb4-0.9.7, where
7173 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7175 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7177 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7179 *) For easily testing in shell scripts whether some command
7180 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7181 returns with exit code 0 iff no command of the given name is available.
7182 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7183 the output goes to stdout and nothing is printed to stderr.
7184 Additional arguments are always ignored.
7186 Since for each cipher there is a command of the same name,
7187 the 'no-cipher' compilation switches can be tested this way.
7189 ('openssl no-XXX' is not able to detect pseudo-commands such
7190 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7193 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7196 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7197 is set; it will be thrown away anyway because each handshake creates
7199 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7200 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7201 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7202 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7205 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7206 'Q' and 'R' lose their special meanings (quit/renegotiate).
7207 This is part of what -quiet does; unlike -quiet, -ign_eof
7208 does not suppress any output.
7211 *) Add compatibility options to the purpose and trust code. The
7212 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7213 accepts a certificate or CA, this was the previous behaviour,
7214 with all the associated security issues.
7216 X509_TRUST_COMPAT is the old trust behaviour: only and
7217 automatically trust self signed roots in certificate store. A
7218 new trust setting X509_TRUST_DEFAULT is used to specify that
7219 a purpose has no associated trust setting and it should instead
7220 use the value in the default purpose.
7223 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7224 and fix a memory leak.
7227 *) In util/mkerr.pl (which implements 'make errors'), preserve
7228 reason strings from the previous version of the .c file, as
7229 the default to have only downcase letters (and digits) in
7230 automatically generated reasons codes is not always appropriate.
7233 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7234 using strerror. Previously, ERR_reason_error_string() returned
7235 library names as reason strings for SYSerr; but SYSerr is a special
7236 case where small numbers are errno values, not library numbers.
7239 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7240 converts DSA parameters into DH parameters. (When creating parameters,
7241 DSA_generate_parameters is used.)
7244 *) Include 'length' (recommended exponent length) in C code generated
7245 by 'openssl dhparam -C'.
7248 *) The second argument to set_label in perlasm was already being used
7249 so couldn't be used as a "file scope" flag. Moved to third argument
7253 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7254 instead of RAND_bytes for encryption IVs and salts.
7257 *) Include RAND_status() into RAND_METHOD instead of implementing
7258 it only for md_rand.c Otherwise replacing the PRNG by calling
7259 RAND_set_rand_method would be impossible.
7262 *) Don't let DSA_generate_key() enter an infinite loop if the random
7263 number generation fails.
7266 *) New 'rand' application for creating pseudo-random output.
7269 *) Added configuration support for Linux/IA64
7270 [Rolf Haberrecker <rolf@suse.de>]
7272 *) Assembler module support for Mingw32.
7275 *) Shared library support for HPUX (in shlib/).
7276 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7278 *) Shared library support for Solaris gcc.
7279 [Lutz Behnke <behnke@trustcenter.de>]
7281 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7283 *) PKCS7_encrypt() was adding text MIME headers twice because they
7284 were added manually and by SMIME_crlf_copy().
7287 *) In bntest.c don't call BN_rand with zero bits argument.
7288 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7290 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7291 case was implemented. This caused BN_div_recp() to fail occasionally.
7294 *) Add an optional second argument to the set_label() in the perl
7295 assembly language builder. If this argument exists and is set
7296 to 1 it signals that the assembler should use a symbol whose
7297 scope is the entire file, not just the current function. This
7298 is needed with MASM which uses the format label:: for this scope.
7299 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7301 *) Change the ASN1 types so they are typedefs by default. Before
7302 almost all types were #define'd to ASN1_STRING which was causing
7303 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7307 *) Change names of new functions to the new get1/get0 naming
7308 convention: After 'get1', the caller owns a reference count
7309 and has to call ..._free; 'get0' returns a pointer to some
7310 data structure without incrementing reference counters.
7311 (Some of the existing 'get' functions increment a reference
7312 counter, some don't.)
7313 Similarly, 'set1' and 'add1' functions increase reference
7314 counters or duplicate objects.
7317 *) Allow for the possibility of temp RSA key generation failure:
7318 the code used to assume it always worked and crashed on failure.
7321 *) Fix potential buffer overrun problem in BIO_printf().
7322 [Ulf Möller, using public domain code by Patrick Powell; problem
7323 pointed out by David Sacerdote <das33@cornell.edu>]
7325 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7326 RAND_egd() and RAND_status(). In the command line application,
7327 the EGD socket can be specified like a seed file using RANDFILE
7331 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7332 Some CAs (e.g. Verisign) distribute certificates in this form.
7335 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7336 list to exclude them. This means that no special compilation option
7337 is needed to use anonymous DH: it just needs to be included in the
7341 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7342 EVP_MD_type. The old functionality is available in a new macro called
7343 EVP_MD_md(). Change code that uses it and update docs.
7346 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7347 where the 'void *' argument is replaced by a function pointer argument.
7348 Previously 'void *' was abused to point to functions, which works on
7349 many platforms, but is not correct. As these functions are usually
7350 called by macros defined in OpenSSL header files, most source code
7351 should work without changes.
7354 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7355 sections with information on -D... compiler switches used for
7356 compiling the library so that applications can see them. To enable
7357 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7358 must be defined. E.g.,
7359 #define OPENSSL_ALGORITHM_DEFINES
7360 #include <openssl/opensslconf.h>
7361 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7362 [Richard Levitte, Ulf and Bodo Möller]
7364 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7368 *) Change the 'other' type in certificate aux info to a STACK_OF
7369 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7370 the required ASN1 format: arbitrary types determined by an OID.
7373 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7374 argument to 'req'. This is not because the function is newer or
7375 better than others it just uses the work 'NEW' in the certificate
7376 request header lines. Some software needs this.
7379 *) Reorganise password command line arguments: now passwords can be
7380 obtained from various sources. Delete the PEM_cb function and make
7381 it the default behaviour: i.e. if the callback is NULL and the
7382 usrdata argument is not NULL interpret it as a null terminated pass
7383 phrase. If usrdata and the callback are NULL then the pass phrase
7384 is prompted for as usual.
7387 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7388 the support is automatically enabled. The resulting binaries will
7389 autodetect the card and use it if present.
7390 [Ben Laurie and Compaq Inc.]
7392 *) Work around for Netscape hang bug. This sends certificate request
7393 and server done in one record. Since this is perfectly legal in the
7394 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7395 the bugs/SSLv3 entry for more info.
7398 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7401 *) Add -rand argument to smime and pkcs12 applications and read/write
7405 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7408 *) Add command line password options to the remaining applications.
7411 *) Bug fix for BN_div_recp() for numerators with an even number of
7415 *) More tests in bntest.c, and changed test_bn output.
7418 *) ./config recognizes MacOS X now.
7421 *) Bug fix for BN_div() when the first words of num and divsor are
7422 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7425 *) Add support for various broken PKCS#8 formats, and command line
7426 options to produce them.
7429 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7430 get temporary BIGNUMs from a BN_CTX.
7433 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7437 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7438 include a #define from the old name to the new. The original intent
7439 was that statically linked binaries could for example just call
7440 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7441 link with digests. This never worked becayse SSLeay_add_all_digests()
7442 and SSLeay_add_all_ciphers() were in the same source file so calling
7443 one would link with the other. They are now in separate source files.
7446 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7449 *) Use a less unusual form of the Miller-Rabin primality test (it used
7450 a binary algorithm for exponentiation integrated into the Miller-Rabin
7451 loop, our standard modexp algorithms are faster).
7454 *) Support for the EBCDIC character set completed.
7455 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7457 *) Source code cleanups: use const where appropriate, eliminate casts,
7458 use void * instead of char * in lhash.
7461 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7462 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7463 this the server could overwrite ephemeral keys that the client
7467 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7468 using 50 iterations of the Rabin-Miller test.
7470 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7471 iterations of the Rabin-Miller test as required by the appendix
7472 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7473 As BN_is_prime_fasttest includes trial division, DSA parameter
7474 generation becomes much faster.
7476 This implies a change for the callback functions in DSA_is_prime
7477 and DSA_generate_parameters: The callback function is called once
7478 for each positive witness in the Rabin-Miller test, not just
7479 occasionally in the inner loop; and the parameters to the
7480 callback function now provide an iteration count for the outer
7481 loop rather than for the current invocation of the inner loop.
7482 DSA_generate_parameters additionally can call the callback
7483 function with an 'iteration count' of -1, meaning that a
7484 candidate has passed the trial division test (when q is generated
7485 from an application-provided seed, trial division is skipped).
7488 *) New function BN_is_prime_fasttest that optionally does trial
7489 division before starting the Rabin-Miller test and has
7490 an additional BN_CTX * argument (whereas BN_is_prime always
7491 has to allocate at least one BN_CTX).
7492 'callback(1, -1, cb_arg)' is called when a number has passed the
7493 trial division stage.
7496 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7500 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7503 *) New function BN_pseudo_rand().
7506 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7507 bignum version of BN_from_montgomery() with the working code from
7508 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7512 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7513 made it impossible to use the same SSL_SESSION data structure in
7514 SSL2 clients in multiple threads.
7517 *) The return value of RAND_load_file() no longer counts bytes obtained
7518 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7519 to seed the PRNG (previously an explicit byte count was required).
7520 [Ulf Möller, Bodo Möller]
7522 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7523 used (char *) instead of (void *) and had casts all over the place.
7526 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7529 *) Retain source code compatibility for BN_prime_checks macro:
7530 BN_is_prime(..., BN_prime_checks, ...) now uses
7531 BN_prime_checks_for_size to determine the appropriate number of
7532 Rabin-Miller iterations.
7535 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7536 DH_CHECK_P_NOT_SAFE_PRIME.
7537 (Check if this is true? OpenPGP calls them "strong".)
7540 *) Merge the functionality of "dh" and "gendh" programs into a new program
7541 "dhparam". The old programs are retained for now but will handle DH keys
7542 (instead of parameters) in future.
7545 *) Make the ciphers, s_server and s_client programs check the return values
7546 when a new cipher list is set.
7549 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7550 ciphers. Before when the 56bit ciphers were enabled the sorting was
7553 The syntax for the cipher sorting has been extended to support sorting by
7554 cipher-strength (using the strength_bits hard coded in the tables).
7555 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7557 Fix a bug in the cipher-command parser: when supplying a cipher command
7558 string with an "undefined" symbol (neither command nor alphanumeric
7559 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7560 an error is flagged.
7562 Due to the strength-sorting extension, the code of the
7563 ssl_create_cipher_list() function was completely rearranged. I hope that
7564 the readability was also increased :-)
7565 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7567 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7568 for the first serial number and places 2 in the serial number file. This
7569 avoids problems when the root CA is created with serial number zero and
7570 the first user certificate has the same issuer name and serial number
7574 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7575 the new code. Add documentation for this stuff.
7578 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7579 X509_*() to X509at_*() on the grounds that they don't handle X509
7580 structures and behave in an analagous way to the X509v3 functions:
7581 they shouldn't be called directly but wrapper functions should be used
7584 So we also now have some wrapper functions that call the X509at functions
7585 when passed certificate requests. (TO DO: similar things can be done with
7586 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7587 things. Some of these need some d2i or i2d and print functionality
7588 because they handle more complex structures.)
7591 *) Add missing #ifndefs that caused missing symbols when building libssl
7592 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7593 NO_RSA in ssl/s2*.c.
7594 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7596 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7597 has a return value which indicates the quality of the random data
7598 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7599 error queue. New function RAND_pseudo_bytes() generates output that is
7600 guaranteed to be unique but not unpredictable. RAND_add is like
7601 RAND_seed, but takes an extra argument for an entropy estimate
7602 (RAND_seed always assumes full entropy).
7605 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7606 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7607 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7608 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7609 false-positive rate of at most 2^-80 for random input.
7612 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7615 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7616 in the 0.9.5 release), this returns the chain
7617 from an X509_CTX structure with a dup of the stack and all
7618 the X509 reference counts upped: so the stack will exist
7619 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7622 Also make SSL_SESSION_print() print out the verify return
7626 *) Add manpage for the pkcs12 command. Also change the default
7627 behaviour so MAC iteration counts are used unless the new
7628 -nomaciter option is used. This improves file security and
7629 only older versions of MSIE (4.0 for example) need it.
7632 *) Honor the no-xxx Configure options when creating .DEF files.
7635 *) Add PKCS#10 attributes to field table: challengePassword,
7636 unstructuredName and unstructuredAddress. These are taken from
7637 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7638 international characters are used.
7640 More changes to X509_ATTRIBUTE code: allow the setting of types
7641 based on strings. Remove the 'loc' parameter when adding
7642 attributes because these will be a SET OF encoding which is sorted
7646 *) Initial changes to the 'req' utility to allow request generation
7647 automation. This will allow an application to just generate a template
7648 file containing all the field values and have req construct the
7651 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7652 used all over the place including certificate requests and PKCS#7
7653 structures. They are currently handled manually where necessary with
7654 some primitive wrappers for PKCS#7. The new functions behave in a
7655 manner analogous to the X509 extension functions: they allow
7656 attributes to be looked up by NID and added.
7658 Later something similar to the X509V3 code would be desirable to
7659 automatically handle the encoding, decoding and printing of the
7660 more complex types. The string types like challengePassword can
7661 be handled by the string table functions.
7663 Also modified the multi byte string table handling. Now there is
7664 a 'global mask' which masks out certain types. The table itself
7665 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7666 is useful when for example there is only one permissible type
7667 (as in countryName) and using the mask might result in no valid
7671 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7672 SSL_get_peer_finished to allow applications to obtain the latest
7673 Finished messages sent to the peer or expected from the peer,
7674 respectively. (SSL_get_peer_finished is usually the Finished message
7675 actually received from the peer, otherwise the protocol will be aborted.)
7677 As the Finished message are message digests of the complete handshake
7678 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7679 be used for external authentication procedures when the authentication
7680 provided by SSL/TLS is not desired or is not enough.
7683 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7684 the host supports BWX extension and if Compaq C is present on the
7685 $PATH. Just exploiting of the BWX extension results in 20-30%
7686 performance kick for some algorithms, e.g. DES and RC4 to mention
7687 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7691 *) Add support for MS "fast SGC". This is arguably a violation of the
7692 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7693 weak crypto and after checking the certificate is SGC a second one
7694 with strong crypto. MS SGC stops the first handshake after receiving
7695 the server certificate message and sends a second client hello. Since
7696 a server will typically do all the time consuming operations before
7697 expecting any further messages from the client (server key exchange
7698 is the most expensive) there is little difference between the two.
7700 To get OpenSSL to support MS SGC we have to permit a second client
7701 hello message after we have sent server done. In addition we have to
7702 reset the MAC if we do get this second client hello.
7705 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7706 if a DER encoded private key is RSA or DSA traditional format. Changed
7707 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7708 format DER encoded private key. Newer code should use PKCS#8 format which
7709 has the key type encoded in the ASN1 structure. Added DER private key
7710 support to pkcs8 application.
7713 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7714 ciphersuites has been selected (as required by the SSL 3/TLS 1
7715 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7716 is set, we interpret this as a request to violate the specification
7717 (the worst that can happen is a handshake failure, and 'correct'
7718 behaviour would result in a handshake failure anyway).
7721 *) In SSL_CTX_add_session, take into account that there might be multiple
7722 SSL_SESSION structures with the same session ID (e.g. when two threads
7723 concurrently obtain them from an external cache).
7724 The internal cache can handle only one SSL_SESSION with a given ID,
7725 so if there's a conflict, we now throw out the old one to achieve
7729 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7730 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7731 some routines that use cipher OIDs: some ciphers do not have OIDs
7732 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7736 *) Simplify the trust setting structure and code. Now we just have
7737 two sequences of OIDs for trusted and rejected settings. These will
7738 typically have values the same as the extended key usage extension
7739 and any application specific purposes.
7741 The trust checking code now has a default behaviour: it will just
7742 check for an object with the same NID as the passed id. Functions can
7743 be provided to override either the default behaviour or the behaviour
7744 for a given id. SSL client, server and email already have functions
7745 in place for compatibility: they check the NID and also return "trusted"
7746 if the certificate is self signed.
7749 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7750 traditional format into an EVP_PKEY structure.
7753 *) Add a password callback function PEM_cb() which either prompts for
7754 a password if usr_data is NULL or otherwise assumes it is a null
7755 terminated password. Allow passwords to be passed on command line
7756 environment or config files in a few more utilities.
7759 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7760 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7761 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7762 Update documentation.
7765 *) Support for ASN1 "NULL" type. This could be handled before by using
7766 ASN1_TYPE but there wasn't any function that would try to read a NULL
7767 and produce an error if it couldn't. For compatibility we also have
7768 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7769 don't allocate anything because they don't need to.
7772 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7774 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7776 *) Rebuild of the memory allocation routines used by OpenSSL code and
7777 possibly others as well. The purpose is to make an interface that
7778 provide hooks so anyone can build a separate set of allocation and
7779 deallocation routines to be used by OpenSSL, for example memory
7780 pool implementations, or something else, which was previously hard
7781 since Malloc(), Realloc() and Free() were defined as macros having
7782 the values malloc, realloc and free, respectively (except for Win32
7783 compilations). The same is provided for memory debugging code.
7784 OpenSSL already comes with functionality to find memory leaks, but
7785 this gives people a chance to debug other memory problems.
7787 With these changes, a new set of functions and macros have appeared:
7789 CRYPTO_set_mem_debug_functions() [F]
7790 CRYPTO_get_mem_debug_functions() [F]
7791 CRYPTO_dbg_set_options() [F]
7792 CRYPTO_dbg_get_options() [F]
7793 CRYPTO_malloc_debug_init() [M]
7795 The memory debug functions are NULL by default, unless the library
7796 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7797 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7798 gives the standard debugging functions that come with OpenSSL) or
7799 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7800 provided by the library user) must be used. When the standard
7801 debugging functions are used, CRYPTO_dbg_set_options can be used to
7802 request additional information:
7803 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7804 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7806 Also, things like CRYPTO_set_mem_functions will always give the
7807 expected result (the new set of functions is used for allocation
7808 and deallocation) at all times, regardless of platform and compiler
7811 To finish it up, some functions that were never use in any other
7812 way than through macros have a new API and new semantic:
7815 CRYPTO_dbg_realloc()
7818 All macros of value have retained their old syntax.
7819 [Richard Levitte and Bodo Moeller]
7821 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7822 ordering of SMIMECapabilities wasn't in "strength order" and there
7823 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7827 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7828 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7829 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7831 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7832 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7833 functionality to handle multipart/signed properly) and a utility
7834 called 'smime' to call all this stuff. This is based on code I
7835 originally wrote for Celo who have kindly allowed it to be
7836 included in OpenSSL.
7839 *) Add variants des_set_key_checked and des_set_key_unchecked of
7840 des_set_key (aka des_key_sched). Global variable des_check_key
7841 decides which of these is called by des_set_key; this way
7842 des_check_key behaves as it always did, but applications and
7843 the library itself, which was buggy for des_check_key == 1,
7844 have a cleaner way to pick the version they need.
7847 *) New function PKCS12_newpass() which changes the password of a
7851 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7852 dynamic mix. In both cases the ids can be used as an index into the
7853 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7854 functions so they accept a list of the field values and the
7855 application doesn't need to directly manipulate the X509_TRUST
7859 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7863 *) Modify the way the V3 extension code looks up extensions. This now
7864 works in a similar way to the object code: we have some "standard"
7865 extensions in a static table which is searched with OBJ_bsearch()
7866 and the application can add dynamic ones if needed. The file
7867 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7868 updated whenever a new extension is added to the core code and kept
7869 in ext_nid order. There is a simple program 'tabtest.c' which checks
7870 this. New extensions are not added too often so this file can readily
7871 be maintained manually.
7873 There are two big advantages in doing things this way. The extensions
7874 can be looked up immediately and no longer need to be "added" using
7875 X509V3_add_standard_extensions(): this function now does nothing.
7876 [Side note: I get *lots* of email saying the extension code doesn't
7877 work because people forget to call this function]
7878 Also no dynamic allocation is done unless new extensions are added:
7879 so if we don't add custom extensions there is no need to call
7880 X509V3_EXT_cleanup().
7883 *) Modify enc utility's salting as follows: make salting the default. Add a
7884 magic header, so unsalted files fail gracefully instead of just decrypting
7885 to garbage. This is because not salting is a big security hole, so people
7886 should be discouraged from doing it.
7889 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7890 digest to be passed on the command line but it only used this
7891 parameter when signing a certificate. Modified so all relevant
7892 operations are affected by the digest parameter including the
7893 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7894 DSA key was used because it didn't fix the digest.
7897 *) Initial certificate chain verify code. Currently tests the untrusted
7898 certificates for consistency with the verify purpose (which is set
7899 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7901 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7902 this is because it will reject chains with invalid extensions whereas
7903 every previous version of OpenSSL and SSLeay made no checks at all.
7905 Trust code: checks the root CA for the relevant trust settings. Trust
7906 settings have an initial value consistent with the verify purpose: e.g.
7907 if the verify purpose is for SSL client use it expects the CA to be
7908 trusted for SSL client use. However the default value can be changed to
7909 permit custom trust settings: one example of this would be to only trust
7910 certificates from a specific "secure" set of CAs.
7912 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7913 which should be used for version portability: especially since the
7914 verify structure is likely to change more often now.
7916 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7917 to set them. If not set then assume SSL clients will verify SSL servers
7920 Two new options to the verify program: -untrusted allows a set of
7921 untrusted certificates to be passed in and -purpose which sets the
7922 intended purpose of the certificate. If a purpose is set then the
7923 new chain verify code is used to check extension consistency.
7926 *) Support for the authority information access extension.
7929 *) Modify RSA and DSA PEM read routines to transparently handle
7930 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7931 public keys in a format compatible with certificate
7932 SubjectPublicKeyInfo structures. Unfortunately there were already
7933 functions called *_PublicKey_* which used various odd formats so
7934 these are retained for compatibility: however the DSA variants were
7935 never in a public release so they have been deleted. Changed dsa/rsa
7936 utilities to handle the new format: note no releases ever handled public
7937 keys so we should be OK.
7939 The primary motivation for this change is to avoid the same fiasco
7940 that dogs private keys: there are several incompatible private key
7941 formats some of which are standard and some OpenSSL specific and
7942 require various evil hacks to allow partial transparent handling and
7943 even then it doesn't work with DER formats. Given the option anything
7944 other than PKCS#8 should be dumped: but the other formats have to
7945 stay in the name of compatibility.
7947 With public keys and the benefit of hindsight one standard format
7948 is used which works with EVP_PKEY, RSA or DSA structures: though
7949 it clearly returns an error if you try to read the wrong kind of key.
7951 Added a -pubkey option to the 'x509' utility to output the public key.
7952 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7953 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7954 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7955 that do the same as the EVP_PKEY_assign_*() except they up the
7956 reference count of the added key (they don't "swallow" the
7960 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7961 CRLs would fail if the file contained no certificates or no CRLs:
7962 added a new function to read in both types and return the number
7963 read: this means that if none are read it will be an error. The
7964 DER versions of the certificate and CRL reader would always fail
7965 because it isn't possible to mix certificates and CRLs in DER format
7966 without choking one or the other routine. Changed this to just read
7967 a certificate: this is the best we can do. Also modified the code
7968 in apps/verify.c to take notice of return codes: it was previously
7969 attempting to read in certificates from NULL pointers and ignoring
7970 any errors: this is one reason why the cert and CRL reader seemed
7971 to work. It doesn't check return codes from the default certificate
7972 routines: these may well fail if the certificates aren't installed.
7975 *) Code to support otherName option in GeneralName.
7978 *) First update to verify code. Change the verify utility
7979 so it warns if it is passed a self signed certificate:
7980 for consistency with the normal behaviour. X509_verify
7981 has been modified to it will now verify a self signed
7982 certificate if *exactly* the same certificate appears
7983 in the store: it was previously impossible to trust a
7984 single self signed certificate. This means that:
7985 openssl verify ss.pem
7986 now gives a warning about a self signed certificate but
7987 openssl verify -CAfile ss.pem ss.pem
7991 *) For servers, store verify_result in SSL_SESSION data structure
7992 (and add it to external session representation).
7993 This is needed when client certificate verifications fails,
7994 but an application-provided verification callback (set by
7995 SSL_CTX_set_cert_verify_callback) allows accepting the session
7996 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7997 but returns 1): When the session is reused, we have to set
7998 ssl->verify_result to the appropriate error code to avoid
8000 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8002 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8003 case in PKCS7_dataInit() where the signed PKCS7 structure
8004 didn't contain any existing data because it was being created.
8005 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8007 *) Add a salt to the key derivation routines in enc.c. This
8008 forms the first 8 bytes of the encrypted file. Also add a
8009 -S option to allow a salt to be input on the command line.
8012 *) New function X509_cmp(). Oddly enough there wasn't a function
8013 to compare two certificates. We do this by working out the SHA1
8014 hash and comparing that. X509_cmp() will be needed by the trust
8018 *) SSL_get1_session() is like SSL_get_session(), but increments
8019 the reference count in the SSL_SESSION returned.
8020 [Geoff Thorpe <geoff@eu.c2.net>]
8022 *) Fix for 'req': it was adding a null to request attributes.
8023 Also change the X509_LOOKUP and X509_INFO code to handle
8024 certificate auxiliary information.
8027 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8031 *) Add the possibility to add extra information to the memory leak
8032 detecting output, to form tracebacks, showing from where each
8033 allocation was originated: CRYPTO_push_info("constant string") adds
8034 the string plus current file name and line number to a per-thread
8035 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8036 is like calling CYRPTO_pop_info() until the stack is empty.
8037 Also updated memory leak detection code to be multi-thread-safe.
8040 *) Add options -text and -noout to pkcs7 utility and delete the
8041 encryption options which never did anything. Update docs.
8044 *) Add options to some of the utilities to allow the pass phrase
8045 to be included on either the command line (not recommended on
8046 OSes like Unix) or read from the environment. Update the
8047 manpages and fix a few bugs.
8050 *) Add a few manpages for some of the openssl commands.
8053 *) Fix the -revoke option in ca. It was freeing up memory twice,
8054 leaking and not finding already revoked certificates.
8057 *) Extensive changes to support certificate auxiliary information.
8058 This involves the use of X509_CERT_AUX structure and X509_AUX
8059 functions. An X509_AUX function such as PEM_read_X509_AUX()
8060 can still read in a certificate file in the usual way but it
8061 will also read in any additional "auxiliary information". By
8062 doing things this way a fair degree of compatibility can be
8063 retained: existing certificates can have this information added
8064 using the new 'x509' options.
8066 Current auxiliary information includes an "alias" and some trust
8067 settings. The trust settings will ultimately be used in enhanced
8068 certificate chain verification routines: currently a certificate
8069 can only be trusted if it is self signed and then it is trusted
8073 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8074 The problem was that one of the replacement routines had not been working
8075 since SSLeay releases. For now the offending routine has been replaced
8076 with non-optimised assembler. Even so, this now gives around 95%
8077 performance improvement for 1024 bit RSA signs.
8080 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8081 handling. Most clients have the effective key size in bits equal to
8082 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8083 A few however don't do this and instead use the size of the decrypted key
8084 to determine the RC2 key length and the AlgorithmIdentifier to determine
8085 the effective key length. In this case the effective key length can still
8086 be 40 bits but the key length can be 168 bits for example. This is fixed
8087 by manually forcing an RC2 key into the EVP_PKEY structure because the
8088 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8089 the key length and effective key length are equal.
8092 *) Add a bunch of functions that should simplify the creation of
8093 X509_NAME structures. Now you should be able to do:
8094 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8095 and have it automatically work out the correct field type and fill in
8096 the structures. The more adventurous can try:
8097 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8098 and it will (hopefully) work out the correct multibyte encoding.
8101 *) Change the 'req' utility to use the new field handling and multibyte
8102 copy routines. Before the DN field creation was handled in an ad hoc
8103 way in req, ca, and x509 which was rather broken and didn't support
8104 BMPStrings or UTF8Strings. Since some software doesn't implement
8105 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8106 using the dirstring_type option. See the new comment in the default
8107 openssl.cnf for more info.
8110 *) Make crypto/rand/md_rand.c more robust:
8111 - Assure unique random numbers after fork().
8112 - Make sure that concurrent threads access the global counter and
8113 md serializably so that we never lose entropy in them
8114 or use exactly the same state in multiple threads.
8115 Access to the large state is not always serializable because
8116 the additional locking could be a performance killer, and
8117 md should be large enough anyway.
8120 *) New file apps/app_rand.c with commonly needed functionality
8121 for handling the random seed file.
8123 Use the random seed file in some applications that previously did not:
8125 dsaparam -genkey (which also ignored its '-rand' option),
8128 x509 (when signing).
8129 Except on systems with /dev/urandom, it is crucial to have a random
8130 seed file at least for key creation, DSA signing, and for DH exchanges;
8131 for RSA signatures we could do without one.
8133 gendh and gendsa (unlike genrsa) used to read only the first byte
8134 of each file listed in the '-rand' option. The function as previously
8135 found in genrsa is now in app_rand.c and is used by all programs
8136 that support '-rand'.
8139 *) In RAND_write_file, use mode 0600 for creating files;
8140 don't just chmod when it may be too late.
8143 *) Report an error from X509_STORE_load_locations
8144 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8147 *) New function ASN1_mbstring_copy() this copies a string in either
8148 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8149 into an ASN1_STRING type. A mask of permissible types is passed
8150 and it chooses the "minimal" type to use or an error if not type
8154 *) Add function equivalents to the various macros in asn1.h. The old
8155 macros are retained with an M_ prefix. Code inside the library can
8156 use the M_ macros. External code (including the openssl utility)
8157 should *NOT* in order to be "shared library friendly".
8160 *) Add various functions that can check a certificate's extensions
8161 to see if it usable for various purposes such as SSL client,
8162 server or S/MIME and CAs of these types. This is currently
8163 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8164 verification. Also added a -purpose flag to x509 utility to
8165 print out all the purposes.
8168 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8172 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8173 for, obtain and decode and extension and obtain its critical flag.
8174 This allows all the necessary extension code to be handled in a
8175 single function call.
8178 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8179 platforms. See crypto/rc4/rc4_enc.c for further details.
8182 *) New -noout option to asn1parse. This causes no output to be produced
8183 its main use is when combined with -strparse and -out to extract data
8184 from a file (which may not be in ASN.1 format).
8187 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8188 when producing the local key id.
8189 [Richard Levitte <levitte@stacken.kth.se>]
8191 *) New option -dhparam in s_server. This allows a DH parameter file to be
8192 stated explicitly. If it is not stated then it tries the first server
8193 certificate file. The previous behaviour hard coded the filename
8197 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8198 a public key to be input or output. For example:
8199 openssl rsa -in key.pem -pubout -out pubkey.pem
8200 Also added necessary DSA public key functions to handle this.
8203 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8204 in the message. This was handled by allowing
8205 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8206 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8208 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8209 to the end of the strings whereas this didn't. This would cause problems
8210 if strings read with d2i_ASN1_bytes() were later modified.
8211 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8213 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8214 data and it contains EOF it will end up returning an error. This is
8215 caused by input 46 bytes long. The cause is due to the way base64
8216 BIOs find the start of base64 encoded data. They do this by trying a
8217 trial decode on each line until they find one that works. When they
8218 do a flag is set and it starts again knowing it can pass all the
8219 data directly through the decoder. Unfortunately it doesn't reset
8220 the context it uses. This means that if EOF is reached an attempt
8221 is made to pass two EOFs through the context and this causes the
8222 resulting error. This can also cause other problems as well. As is
8223 usual with these problems it takes *ages* to find and the fix is
8224 trivial: move one line.
8225 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8227 *) Ugly workaround to get s_client and s_server working under Windows. The
8228 old code wouldn't work because it needed to select() on sockets and the
8229 tty (for keypresses and to see if data could be written). Win32 only
8230 supports select() on sockets so we select() with a 1s timeout on the
8231 sockets and then see if any characters are waiting to be read, if none
8232 are present then we retry, we also assume we can always write data to
8233 the tty. This isn't nice because the code then blocks until we've
8234 received a complete line of data and it is effectively polling the
8235 keyboard at 1s intervals: however it's quite a bit better than not
8236 working at all :-) A dedicated Windows application might handle this
8237 with an event loop for example.
8240 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8241 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8242 will be called when RSA_sign() and RSA_verify() are used. This is useful
8243 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8244 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8245 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8246 This necessitated the support of an extra signature type NID_md5_sha1
8247 for SSL signatures and modifications to the SSL library to use it instead
8248 of calling RSA_public_decrypt() and RSA_private_encrypt().
8251 *) Add new -verify -CAfile and -CApath options to the crl program, these
8252 will lookup a CRL issuers certificate and verify the signature in a
8253 similar way to the verify program. Tidy up the crl program so it
8254 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8255 less strict. It will now permit CRL extensions even if it is not
8256 a V2 CRL: this will allow it to tolerate some broken CRLs.
8259 *) Initialize all non-automatic variables each time one of the openssl
8260 sub-programs is started (this is necessary as they may be started
8261 multiple times from the "OpenSSL>" prompt).
8262 [Lennart Bang, Bodo Moeller]
8264 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8265 removing all other RSA functionality (this is what NO_RSA does). This
8266 is so (for example) those in the US can disable those operations covered
8267 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8271 *) Non-copying interface to BIO pairs.
8272 (still largely untested)
8275 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8276 ASCII string. This was handled independently in various places before.
8279 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8280 UTF8 strings a character at a time.
8283 *) Use client_version from client hello to select the protocol
8284 (s23_srvr.c) and for RSA client key exchange verification
8285 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8288 *) Add various utility functions to handle SPKACs, these were previously
8289 handled by poking round in the structure internals. Added new function
8290 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8291 print, verify and generate SPKACs. Based on an original idea from
8292 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8295 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8298 *) Allow the config file extension section to be overwritten on the
8299 command line. Based on an original idea from Massimiliano Pala
8300 <madwolf@comune.modena.it>. The new option is called -extensions
8301 and can be applied to ca, req and x509. Also -reqexts to override
8302 the request extensions in req and -crlexts to override the crl extensions
8306 *) Add new feature to the SPKAC handling in ca. Now you can include
8307 the same field multiple times by preceding it by "XXXX." for example:
8310 this is the same syntax as used in the req config file.
8313 *) Allow certificate extensions to be added to certificate requests. These
8314 are specified in a 'req_extensions' option of the req section of the
8315 config file. They can be printed out with the -text option to req but
8316 are otherwise ignored at present.
8319 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8320 data read consists of only the final block it would not decrypted because
8321 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8322 A misplaced 'break' also meant the decrypted final block might not be
8323 copied until the next read.
8326 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8327 a few extra parameters to the DH structure: these will be useful if
8328 for example we want the value of 'q' or implement X9.42 DH.
8331 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8332 provides hooks that allow the default DSA functions or functions on a
8333 "per key" basis to be replaced. This allows hardware acceleration and
8334 hardware key storage to be handled without major modification to the
8335 library. Also added low level modexp hooks and CRYPTO_EX structure and
8336 associated functions.
8339 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8340 as "read only": it can't be written to and the buffer it points to will
8341 not be freed. Reading from a read only BIO is much more efficient than
8342 a normal memory BIO. This was added because there are several times when
8343 an area of memory needs to be read from a BIO. The previous method was
8344 to create a memory BIO and write the data to it, this results in two
8345 copies of the data and an O(n^2) reading algorithm. There is a new
8346 function BIO_new_mem_buf() which creates a read only memory BIO from
8347 an area of memory. Also modified the PKCS#7 routines to use read only
8351 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8352 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8353 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8354 but a retry condition occured while trying to read the rest.
8357 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8358 NID_pkcs7_encrypted by default: this was wrong since this should almost
8359 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8360 the encrypted data type: this is a more sensible place to put it and it
8361 allows the PKCS#12 code to be tidied up that duplicated this
8365 *) Changed obj_dat.pl script so it takes its input and output files on
8366 the command line. This should avoid shell escape redirection problems
8370 *) Initial support for certificate extension requests, these are included
8371 in things like Xenroll certificate requests. Included functions to allow
8372 extensions to be obtained and added.
8375 *) -crlf option to s_client and s_server for sending newlines as
8376 CRLF (as required by many protocols).
8379 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8381 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8382 [Ralf S. Engelschall]
8384 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8385 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8387 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8391 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8392 DH parameters/keys (q is lost during that conversion, but the resulting
8393 DH parameters contain its length).
8395 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8396 much faster than DH_generate_parameters (which creates parameters
8397 where p = 2*q + 1), and also the smaller q makes DH computations
8398 much more efficient (160-bit exponentiation instead of 1024-bit
8399 exponentiation); so this provides a convenient way to support DHE
8400 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8401 utter importance to use
8402 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8404 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8405 when such DH parameters are used, because otherwise small subgroup
8406 attacks may become possible!
8409 *) Avoid memory leak in i2d_DHparams.
8412 *) Allow the -k option to be used more than once in the enc program:
8413 this allows the same encrypted message to be read by multiple recipients.
8416 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8417 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8418 it will always use the numerical form of the OID, even if it has a short
8422 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8423 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8424 otherwise bn_mod_exp was called. In the case of hardware keys for example
8425 no private key components need be present and it might store extra data
8426 in the RSA structure, which cannot be accessed from bn_mod_exp.
8427 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8428 private key operations.
8431 *) Added support for SPARC Linux.
8434 *) pem_password_cb function type incompatibly changed from
8435 typedef int pem_password_cb(char *buf, int size, int rwflag);
8437 ....(char *buf, int size, int rwflag, void *userdata);
8438 so that applications can pass data to their callbacks:
8439 The PEM[_ASN1]_{read,write}... functions and macros now take an
8440 additional void * argument, which is just handed through whenever
8441 the password callback is called.
8442 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8444 New function SSL_CTX_set_default_passwd_cb_userdata.
8446 Compatibility note: As many C implementations push function arguments
8447 onto the stack in reverse order, the new library version is likely to
8448 interoperate with programs that have been compiled with the old
8449 pem_password_cb definition (PEM_whatever takes some data that
8450 happens to be on the stack as its last argument, and the callback
8451 just ignores this garbage); but there is no guarantee whatsoever that
8454 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8455 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8456 problems not only on Windows, but also on some Unix platforms.
8457 To avoid problematic command lines, these definitions are now in an
8458 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8459 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8462 *) MIPS III/IV assembler module is reimplemented.
8465 *) More DES library cleanups: remove references to srand/rand and
8466 delete an unused file.
8469 *) Add support for the the free Netwide assembler (NASM) under Win32,
8470 since not many people have MASM (ml) and it can be hard to obtain.
8471 This is currently experimental but it seems to work OK and pass all
8472 the tests. Check out INSTALL.W32 for info.
8475 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8476 without temporary keys kept an extra copy of the server key,
8477 and connections with temporary keys did not free everything in case
8481 *) New function RSA_check_key and new openssl rsa option -check
8482 for verifying the consistency of RSA keys.
8483 [Ulf Moeller, Bodo Moeller]
8485 *) Various changes to make Win32 compile work:
8486 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8487 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8488 comparison" warnings.
8489 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8492 *) Add a debugging option to PKCS#5 v2 key generation function: when
8493 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8494 derived keys are printed to stderr.
8497 *) Copy the flags in ASN1_STRING_dup().
8498 [Roman E. Pavlov <pre@mo.msk.ru>]
8500 *) The x509 application mishandled signing requests containing DSA
8501 keys when the signing key was also DSA and the parameters didn't match.
8503 It was supposed to omit the parameters when they matched the signing key:
8504 the verifying software was then supposed to automatically use the CA's
8505 parameters if they were absent from the end user certificate.
8507 Omitting parameters is no longer recommended. The test was also
8508 the wrong way round! This was probably due to unusual behaviour in
8509 EVP_cmp_parameters() which returns 1 if the parameters match.
8510 This meant that parameters were omitted when they *didn't* match and
8511 the certificate was useless. Certificates signed with 'ca' didn't have
8513 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8515 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8516 The interface is as follows:
8517 Applications can use
8518 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8519 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8520 "off" is now the default.
8521 The library internally uses
8522 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8523 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8524 to disable memory-checking temporarily.
8526 Some inconsistent states that previously were possible (and were
8527 even the default) are now avoided.
8529 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8530 with each memory chunk allocated; this is occasionally more helpful
8531 than just having a counter.
8533 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8535 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8539 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8540 which largely parallels "options", but is for changing API behaviour,
8541 whereas "options" are about protocol behaviour.
8542 Initial "mode" flags are:
8544 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8545 a single record has been written.
8546 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8547 retries use the same buffer location.
8548 (But all of the contents must be
8552 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8555 *) Fix problems with no-hmac etc.
8556 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8558 *) New functions RSA_get_default_method(), RSA_set_method() and
8559 RSA_get_method(). These allows replacement of RSA_METHODs without having
8560 to mess around with the internals of an RSA structure.
8563 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8564 Also really enable memory leak checks in openssl.c and in some
8566 [Chad C. Mulligan, Bodo Moeller]
8568 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8569 up the length of negative integers. This has now been simplified to just
8570 store the length when it is first determined and use it later, rather
8571 than trying to keep track of where data is copied and updating it to
8573 [Steve Henson, reported by Brien Wheeler
8574 <bwheeler@authentica-security.com>]
8576 *) Add a new function PKCS7_signatureVerify. This allows the verification
8577 of a PKCS#7 signature but with the signing certificate passed to the
8578 function itself. This contrasts with PKCS7_dataVerify which assumes the
8579 certificate is present in the PKCS#7 structure. This isn't always the
8580 case: certificates can be omitted from a PKCS#7 structure and be
8581 distributed by "out of band" means (such as a certificate database).
8584 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8585 function prototypes in pem.h, also change util/mkdef.pl to add the
8586 necessary function names.
8589 *) mk1mf.pl (used by Windows builds) did not properly read the
8590 options set by Configure in the top level Makefile, and Configure
8591 was not even able to write more than one option correctly.
8592 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8595 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8596 file to be loaded from a BIO or FILE pointer. The BIO version will
8597 for example allow memory BIOs to contain config info.
8600 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8601 Whoever hopes to achieve shared-library compatibility across versions
8602 must use this, not the compile-time macro.
8603 (Exercise 0.9.4: Which is the minimum library version required by
8605 Note: All this applies only to multi-threaded programs, others don't
8609 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8610 through a BIO pair triggered the default case, i.e.
8611 SSLerr(...,SSL_R_UNKNOWN_STATE).
8614 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8615 can use the SSL library even if none of the specific BIOs is
8619 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8620 for the encoded length.
8621 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8623 *) Add initial documentation of the X509V3 functions.
8626 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8627 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8628 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8629 secure PKCS#8 private key format with a high iteration count.
8632 *) Fix determination of Perl interpreter: A perl or perl5
8633 _directory_ in $PATH was also accepted as the interpreter.
8634 [Ralf S. Engelschall]
8636 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8637 wrong with it but it was very old and did things like calling
8638 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8642 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8643 to use the new extension code.
8646 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8647 with macros. This should make it easier to change their form, add extra
8648 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8652 *) Add to configuration table a new entry that can specify an alternative
8653 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8654 according to Mark Crispin <MRC@Panda.COM>.
8658 *) DES CBC did not update the IV. Weird.
8661 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8662 Changing the behaviour of the former might break existing programs --
8663 where IV updating is needed, des_ncbc_encrypt can be used.
8666 *) When bntest is run from "make test" it drives bc to check its
8667 calculations, as well as internally checking them. If an internal check
8668 fails, it needs to cause bc to give a non-zero result or make test carries
8669 on without noticing the failure. Fixed.
8672 *) DES library cleanups.
8675 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8676 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8677 ciphers. NOTE: although the key derivation function has been verified
8678 against some published test vectors it has not been extensively tested
8679 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8683 *) Instead of "mkdir -p", which is not fully portable, use new
8684 Perl script "util/mkdir-p.pl".
8687 *) Rewrite the way password based encryption (PBE) is handled. It used to
8688 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8689 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8690 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8691 the 'parameter' field of the AlgorithmIdentifier is passed to the
8692 underlying key generation function so it must do its own ASN1 parsing.
8693 This has also changed the EVP_PBE_CipherInit() function which now has a
8694 'parameter' argument instead of literal salt and iteration count values
8695 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8698 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8699 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8700 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8701 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8702 value was just used as a "magic string" and not used directly its
8703 value doesn't matter.
8706 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8710 *) "linux-sparc64" configuration (ultrapenguin).
8711 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8712 "linux-sparc" configuration.
8713 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8715 *) config now generates no-xxx options for missing ciphers.
8718 *) Support the EBCDIC character set (work in progress).
8719 File ebcdic.c not yet included because it has a different license.
8720 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8722 *) Support BS2000/OSD-POSIX.
8723 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8725 *) Make callbacks for key generation use void * instead of char *.
8728 *) Make S/MIME samples compile (not yet tested).
8731 *) Additional typesafe stacks.
8734 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8738 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8740 *) New configuration variant "sco5-gcc".
8742 *) Updated some demos.
8743 [Sean O Riordain, Wade Scholine]
8745 *) Add missing BIO_free at exit of pkcs12 application.
8748 *) Fix memory leak in conf.c.
8751 *) Updates for Win32 to assembler version of MD5.
8754 *) Set #! path to perl in apps/der_chop to where we found it
8755 instead of using a fixed path.
8758 *) SHA library changes for irix64-mips4-cc.
8761 *) Improvements for VMS support.
8765 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8767 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8768 This also avoids the problems with SC4.2 and unpatched SC5.
8769 [Andy Polyakov <appro@fy.chalmers.se>]
8771 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8772 These are required because of the typesafe stack would otherwise break
8773 existing code. If old code used a structure member which used to be STACK
8774 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8775 sk_num or sk_value it would produce an error because the num, data members
8776 are not present in STACK_OF. Now it just produces a warning. sk_set
8777 replaces the old method of assigning a value to sk_value
8778 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8779 that does this will no longer work (and should use sk_set instead) but
8780 this could be regarded as a "questionable" behaviour anyway.
8783 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8784 correctly handle encrypted S/MIME data.
8787 *) Change type of various DES function arguments from des_cblock
8788 (which means, in function argument declarations, pointer to char)
8789 to des_cblock * (meaning pointer to array with 8 char elements),
8790 which allows the compiler to do more typechecking; it was like
8791 that back in SSLeay, but with lots of ugly casts.
8793 Introduce new type const_des_cblock.
8796 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8797 problems: find RecipientInfo structure that matches recipient certificate
8798 and initialise the ASN1 structures properly based on passed cipher.
8801 *) Belatedly make the BN tests actually check the results.
8804 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8805 to and from BNs: it was completely broken. New compilation option
8806 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8807 key elements as negative integers.
8810 *) Reorganize and speed up MD5.
8811 [Andy Polyakov <appro@fy.chalmers.se>]
8814 [Richard Levitte <richard@levitte.org>]
8816 *) New option -out to asn1parse to allow the parsed structure to be
8817 output to a file. This is most useful when combined with the -strparse
8818 option to examine the output of things like OCTET STRINGS.
8821 *) Make SSL library a little more fool-proof by not requiring any longer
8822 that SSL_set_{accept,connect}_state be called before
8823 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8824 in many applications because usually everything *appeared* to work as
8825 intended anyway -- now it really works as intended).
8828 *) Move openssl.cnf out of lib/.
8831 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8832 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8833 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8834 [Ralf S. Engelschall]
8836 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8837 handle PKCS#7 enveloped data properly.
8838 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8840 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8841 copying pointers. The cert_st handling is changed by this in
8842 various ways (and thus what used to be known as ctx->default_cert
8843 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8844 any longer when s->cert does not give us what we need).
8845 ssl_cert_instantiate becomes obsolete by this change.
8846 As soon as we've got the new code right (possibly it already is?),
8847 we have solved a couple of bugs of the earlier code where s->cert
8848 was used as if it could not have been shared with other SSL structures.
8850 Note that using the SSL API in certain dirty ways now will result
8851 in different behaviour than observed with earlier library versions:
8852 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8853 does not influence s as it used to.
8855 In order to clean up things more thoroughly, inside SSL_SESSION
8856 we don't use CERT any longer, but a new structure SESS_CERT
8857 that holds per-session data (if available); currently, this is
8858 the peer's certificate chain and, for clients, the server's certificate
8859 and temporary key. CERT holds only those values that can have
8860 meaningful defaults in an SSL_CTX.
8863 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8864 from the internal representation. Various PKCS#7 fixes: remove some
8865 evil casts and set the enc_dig_alg field properly based on the signing
8869 *) Allow PKCS#12 password to be set from the command line or the
8870 environment. Let 'ca' get its config file name from the environment
8871 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8875 *) Allow certificate policies extension to use an IA5STRING for the
8876 organization field. This is contrary to the PKIX definition but
8877 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8881 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8882 without disallowing inline assembler and the like for non-pedantic builds.
8885 *) Support Borland C++ builder.
8886 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8891 *) SHA-1 cleanups and performance enhancements.
8892 [Andy Polyakov <appro@fy.chalmers.se>]
8894 *) Sparc v8plus assembler for the bignum library.
8895 [Andy Polyakov <appro@fy.chalmers.se>]
8897 *) Accept any -xxx and +xxx compiler options in Configure.
8900 *) Update HPUX configuration.
8903 *) Add missing sk_<type>_unshift() function to safestack.h
8904 [Ralf S. Engelschall]
8906 *) New function SSL_CTX_use_certificate_chain_file that sets the
8907 "extra_cert"s in addition to the certificate. (This makes sense
8908 only for "PEM" format files, as chains as a whole are not
8912 *) Support verify_depth from the SSL API.
8913 x509_vfy.c had what can be considered an off-by-one-error:
8914 Its depth (which was not part of the external interface)
8915 was actually counting the number of certificates in a chain;
8916 now it really counts the depth.
8919 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8920 instead of X509err, which often resulted in confusing error
8921 messages since the error codes are not globally unique
8922 (e.g. an alleged error in ssl3_accept when a certificate
8923 didn't match the private key).
8925 *) New function SSL_CTX_set_session_id_context that allows to set a default
8926 value (so that you don't need SSL_set_session_id_context for each
8927 connection using the SSL_CTX).
8930 *) OAEP decoding bug fix.
8933 *) Support INSTALL_PREFIX for package builders, as proposed by
8937 *) New Configure options "threads" and "no-threads". For systems
8938 where the proper compiler options are known (currently Solaris
8939 and Linux), "threads" is the default.
8942 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8945 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8946 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8947 such as /usr/local/bin.
8950 *) "make linux-shared" to build shared libraries.
8951 [Niels Poppe <niels@netbox.org>]
8953 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8956 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8957 extension adding in x509 utility.
8960 *) Remove NOPROTO sections and error code comments.
8963 *) Partial rewrite of the DEF file generator to now parse the ANSI
8967 *) New Configure options --prefix=DIR and --openssldir=DIR.
8970 *) Complete rewrite of the error code script(s). It is all now handled
8971 by one script at the top level which handles error code gathering,
8972 header rewriting and C source file generation. It should be much better
8973 than the old method: it now uses a modified version of Ulf's parser to
8974 read the ANSI prototypes in all header files (thus the old K&R definitions
8975 aren't needed for error creation any more) and do a better job of
8976 translating function codes into names. The old 'ASN1 error code imbedded
8977 in a comment' is no longer necessary and it doesn't use .err files which
8978 have now been deleted. Also the error code call doesn't have to appear all
8979 on one line (which resulted in some large lines...).
8982 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8985 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8986 0 (which usually indicates a closed connection), but continue reading.
8989 *) Fix some race conditions.
8992 *) Add support for CRL distribution points extension. Add Certificate
8993 Policies and CRL distribution points documentation.
8996 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8999 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9000 8 of keying material. Merlin has also confirmed interop with this fix
9001 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9002 [Merlin Hughes <merlin@baltimore.ie>]
9004 *) Fix lots of warnings.
9005 [Richard Levitte <levitte@stacken.kth.se>]
9007 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9008 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9009 [Richard Levitte <levitte@stacken.kth.se>]
9011 *) Fix problems with sizeof(long) == 8.
9012 [Andy Polyakov <appro@fy.chalmers.se>]
9014 *) Change functions to ANSI C.
9017 *) Fix typos in error codes.
9018 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9020 *) Remove defunct assembler files from Configure.
9023 *) SPARC v8 assembler BIGNUM implementation.
9024 [Andy Polyakov <appro@fy.chalmers.se>]
9026 *) Support for Certificate Policies extension: both print and set.
9027 Various additions to support the r2i method this uses.
9030 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9031 return a const string when you are expecting an allocated buffer.
9034 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9035 types DirectoryString and DisplayText.
9038 *) Add code to allow r2i extensions to access the configuration database,
9039 add an LHASH database driver and add several ctx helper functions.
9042 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9043 fail when they extended the size of a BIGNUM.
9046 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9047 support typesafe stack.
9050 *) Fix typo in SSL_[gs]et_options().
9051 [Nils Frostberg <nils@medcom.se>]
9053 *) Delete various functions and files that belonged to the (now obsolete)
9054 old X509V3 handling code.
9057 *) New Configure option "rsaref".
9060 *) Don't auto-generate pem.h.
9063 *) Introduce type-safe ASN.1 SETs.
9066 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9067 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9069 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9070 that links with OpenSSL (well at least cause lots of warnings), but fear
9071 not: the conversion is trivial, and it eliminates loads of evil casts. A
9072 few STACKed things have been converted already. Feel free to convert more.
9073 In the fullness of time, I'll do away with the STACK type altogether.
9076 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9077 specified in <certfile> by updating the entry in the index.txt file.
9078 This way one no longer has to edit the index.txt file manually for
9079 revoking a certificate. The -revoke option does the gory details now.
9080 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9082 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9083 `-text' option at all and this way the `-noout -text' combination was
9084 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9085 [Ralf S. Engelschall]
9087 *) Make sure a corresponding plain text error message exists for the
9088 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9089 verify callback function determined that a certificate was revoked.
9090 [Ralf S. Engelschall]
9092 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9093 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9094 all available cipers including rc5, which was forgotten until now.
9095 In order to let the testing shell script know which algorithms
9096 are available, a new (up to now undocumented) command
9097 "openssl list-cipher-commands" is used.
9100 *) Bugfix: s_client occasionally would sleep in select() when
9101 it should have checked SSL_pending() first.
9104 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9105 the raw DSA values prior to ASN.1 encoding.
9108 *) Tweaks to Configure
9109 [Niels Poppe <niels@netbox.org>]
9111 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9115 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9118 *) New config option to avoid instructions that are illegal on the 80386.
9119 The default code is faster, but requires at least a 486.
9122 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9123 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9124 same as SSL2_VERSION anyway.
9127 *) New "-showcerts" option for s_client.
9130 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9131 application. Various cleanups and fixes.
9134 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9135 modify error routines to work internally. Add error codes and PBE init
9136 to library startup routines.
9139 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9140 packing functions to asn1 and evp. Changed function names and error
9141 codes along the way.
9144 *) PKCS12 integration: and so it begins... First of several patches to
9145 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9146 objects to objects.h
9149 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9150 and display support for Thawte strong extranet extension.
9153 *) Add LinuxPPC support.
9154 [Jeff Dubrule <igor@pobox.org>]
9156 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9157 bn_div_words in alpha.s.
9158 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9160 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9161 OAEP isn't supported when OpenSSL is built with RSAref.
9162 [Ulf Moeller <ulf@fitug.de>]
9164 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9165 so they no longer are missing under -DNOPROTO.
9166 [Soren S. Jorvang <soren@t.dk>]
9169 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9171 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9172 doesn't work when the session is reused. Coming soon!
9175 *) Fix a security hole, that allows sessions to be reused in the wrong
9176 context thus bypassing client cert protection! All software that uses
9177 client certs and session caches in multiple contexts NEEDS PATCHING to
9178 allow session reuse! A fuller solution is in the works.
9179 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9181 *) Some more source tree cleanups (removed obsolete files
9182 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9183 permission on "config" script to be executable) and a fix for the INSTALL
9185 [Ulf Moeller <ulf@fitug.de>]
9187 *) Remove some legacy and erroneous uses of malloc, free instead of
9189 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9191 *) Make rsa_oaep_test return non-zero on error.
9192 [Ulf Moeller <ulf@fitug.de>]
9194 *) Add support for native Solaris shared libraries. Configure
9195 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9196 if someone would make that last step automatic.
9197 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9199 *) ctx_size was not built with the right compiler during "make links". Fixed.
9202 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9203 except NULL ciphers". This means the default cipher list will no longer
9204 enable NULL ciphers. They need to be specifically enabled e.g. with
9205 the string "DEFAULT:eNULL".
9208 *) Fix to RSA private encryption routines: if p < q then it would
9209 occasionally produce an invalid result. This will only happen with
9210 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9213 *) Be less restrictive and allow also `perl util/perlpath.pl
9214 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9215 because this way one can also use an interpreter named `perl5' (which is
9216 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9217 installed as `perl').
9218 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9220 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9221 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9223 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9224 advapi32.lib to Win32 build and change the pem test comparision
9225 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9226 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9227 and crypto/des/ede_cbcm_enc.c.
9230 *) DES quad checksum was broken on big-endian architectures. Fixed.
9233 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9234 Win32 test batch file so it (might) work again. The Win32 test batch file
9235 is horrible: I feel ill....
9238 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9239 in e_os.h. Audit of header files to check ANSI and non ANSI
9240 sections: 10 functions were absent from non ANSI section and not exported
9241 from Windows DLLs. Fixed up libeay.num for new functions.
9244 *) Make `openssl version' output lines consistent.
9245 [Ralf S. Engelschall]
9247 *) Fix Win32 symbol export lists for BIO functions: Added
9248 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9249 to ms/libeay{16,32}.def.
9250 [Ralf S. Engelschall]
9252 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9253 fine under Unix and passes some trivial tests I've now added. But the
9254 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9255 added to make sure no one expects that this stuff really works in the
9256 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9257 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9259 [Ralf S. Engelschall]
9261 *) Fix the generation of two part addresses in perl.
9262 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9264 *) Add config entry for Linux on MIPS.
9265 [John Tobey <jtobey@channel1.com>]
9267 *) Make links whenever Configure is run, unless we are on Windoze.
9270 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9271 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9275 *) Add a useful kludge to allow package maintainers to specify compiler and
9276 other platforms details on the command line without having to patch the
9277 Configure script everytime: One now can use ``perl Configure
9278 <id>:<details>'', i.e. platform ids are allowed to have details appended
9279 to them (seperated by colons). This is treated as there would be a static
9280 pre-configured entry in Configure's %table under key <id> with value
9281 <details> and ``perl Configure <id>'' is called. So, when you want to
9282 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9283 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9284 now, which overrides the FreeBSD-elf entry on-the-fly.
9285 [Ralf S. Engelschall]
9287 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9290 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9291 on the `perl Configure ...' command line. This way one can compile
9292 OpenSSL libraries with Position Independent Code (PIC) which is needed
9293 for linking it into DSOs.
9294 [Ralf S. Engelschall]
9296 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9300 *) Cleaned up the LICENSE document: The official contact for any license
9301 questions now is the OpenSSL core team under openssl-core@openssl.org.
9302 And add a paragraph about the dual-license situation to make sure people
9303 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9304 to the OpenSSL toolkit.
9305 [Ralf S. Engelschall]
9307 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9308 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9309 Additonally cleaned up the `make links' target: Remove unnecessary
9310 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9311 to speed processing and no longer clutter the display with confusing
9312 stuff. Instead only the actually done links are displayed.
9313 [Ralf S. Engelschall]
9315 *) Permit null encryption ciphersuites, used for authentication only. It used
9316 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9317 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9321 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9322 signed attributes when verifying signatures (this would break them),
9323 the detached data encoding was wrong and public keys obtained using
9324 X509_get_pubkey() weren't freed.
9327 *) Add text documentation for the BUFFER functions. Also added a work around
9328 to a Win95 console bug. This was triggered by the password read stuff: the
9329 last character typed gets carried over to the next fread(). If you were
9330 generating a new cert request using 'req' for example then the last
9331 character of the passphrase would be CR which would then enter the first
9335 *) Added the new `Includes OpenSSL Cryptography Software' button as
9336 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9337 button and can be used by applications based on OpenSSL to show the
9338 relationship to the OpenSSL project.
9339 [Ralf S. Engelschall]
9341 *) Remove confusing variables in function signatures in files
9342 ssl/ssl_lib.c and ssl/ssl.h.
9343 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9345 *) Don't install bss_file.c under PREFIX/include/
9346 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9348 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9349 functions that return function pointers and has support for NT specific
9350 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9351 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9352 unsigned to signed types: this was killing the Win32 compile.
9355 *) Add new certificate file to stack functions,
9356 SSL_add_dir_cert_subjects_to_stack() and
9357 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9358 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9359 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9360 This means that Apache-SSL and similar packages don't have to mess around
9361 to add as many CAs as they want to the preferred list.
9364 *) Experiment with doxygen documentation. Currently only partially applied to
9366 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9367 openssl.doxy as the configuration file.
9370 *) Get rid of remaining C++-style comments which strict C compilers hate.
9371 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9373 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9374 compiled in by default: it has problems with large keys.
9377 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9378 DH private keys and/or callback functions which directly correspond to
9379 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9380 is needed for applications which have to configure certificates on a
9381 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9383 For the RSA certificate situation is makes no difference, but
9384 for the DSA certificate situation this fixes the "no shared cipher"
9385 problem where the OpenSSL cipher selection procedure failed because the
9386 temporary keys were not overtaken from the context and the API provided
9387 no way to reconfigure them.
9388 The new functions now let applications reconfigure the stuff and they
9389 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9390 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9391 non-public-API function ssl_cert_instantiate() is used as a helper
9392 function and also to reduce code redundancy inside ssl_rsa.c.
9393 [Ralf S. Engelschall]
9395 *) Move s_server -dcert and -dkey options out of the undocumented feature
9396 area because they are useful for the DSA situation and should be
9397 recognized by the users.
9398 [Ralf S. Engelschall]
9400 *) Fix the cipher decision scheme for export ciphers: the export bits are
9401 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9402 SSL_EXP_MASK. So, the original variable has to be used instead of the
9403 already masked variable.
9404 [Richard Levitte <levitte@stacken.kth.se>]
9406 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9407 [Richard Levitte <levitte@stacken.kth.se>]
9409 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9410 from `int' to `unsigned int' because it's a length and initialized by
9411 EVP_DigestFinal() which expects an `unsigned int *'.
9412 [Richard Levitte <levitte@stacken.kth.se>]
9414 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9415 script. Instead use the usual Shell->Perl transition trick.
9416 [Ralf S. Engelschall]
9418 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9419 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9420 -noout -modulus' as it's already the case for `openssl rsa -noout
9421 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9422 currently the public key is printed (a decision which was already done by
9423 `openssl dsa -modulus' in the past) which serves a similar purpose.
9424 Additionally the NO_RSA no longer completely removes the whole -modulus
9425 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9427 [Ralf S. Engelschall]
9429 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9430 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9431 [Arne Ansper <arne@ats.cyber.ee>]
9433 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9434 to be added. Now both 'req' and 'ca' can use new objects defined in the
9438 *) Add cool BIO that does syslog (or event log on NT).
9439 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9441 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9442 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9443 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9444 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9447 *) Add preliminary config info for new extension code.
9450 *) Make RSA_NO_PADDING really use no padding.
9451 [Ulf Moeller <ulf@fitug.de>]
9453 *) Generate errors when private/public key check is done.
9456 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9457 for some CRL extensions and new objects added.
9460 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9461 key usage extension and fuller support for authority key id.
9464 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9465 padding method for RSA, which is recommended for new applications in PKCS
9466 #1 v2.0 (RFC 2437, October 1998).
9467 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9468 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9469 against Bleichbacher's attack on RSA.
9470 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9473 *) Updates to the new SSL compression code
9474 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9476 *) Fix so that the version number in the master secret, when passed
9477 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9478 (because the server will not accept higher), that the version number
9479 is 0x03,0x01, not 0x03,0x00
9480 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9482 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9483 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9484 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9487 *) Support for RAW extensions where an arbitrary extension can be
9488 created by including its DER encoding. See apps/openssl.cnf for
9492 *) Make sure latest Perl versions don't interpret some generated C array
9493 code as Perl array code in the crypto/err/err_genc.pl script.
9494 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9496 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9497 not many people have the assembler. Various Win32 compilation fixes and
9498 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9502 *) Modify configure script 'Configure' to automatically create crypto/date.h
9503 file under Win32 and also build pem.h from pem.org. New script
9504 util/mkfiles.pl to create the MINFO file on environments that can't do a
9505 'make files': perl util/mkfiles.pl >MINFO should work.
9508 *) Major rework of DES function declarations, in the pursuit of correctness
9509 and purity. As a result, many evil casts evaporated, and some weirdness,
9510 too. You may find this causes warnings in your code. Zapping your evil
9511 casts will probably fix them. Mostly.
9514 *) Fix for a typo in asn1.h. Bug fix to object creation script
9515 obj_dat.pl. It considered a zero in an object definition to mean
9516 "end of object": none of the objects in objects.h have any zeros
9517 so it wasn't spotted.
9518 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9520 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9521 Masking (CBCM). In the absence of test vectors, the best I have been able
9522 to do is check that the decrypt undoes the encrypt, so far. Send me test
9523 vectors if you have them.
9526 *) Correct calculation of key length for export ciphers (too much space was
9527 allocated for null ciphers). This has not been tested!
9530 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9531 message is now correct (it understands "crypto" and "ssl" on its
9532 command line). There is also now an "update" option. This will update
9533 the util/ssleay.num and util/libeay.num files with any new functions.
9535 perl util/mkdef.pl crypto ssl update
9536 it will update them.
9539 *) Overhauled the Perl interface (perl/*):
9540 - ported BN stuff to OpenSSL's different BN library
9541 - made the perl/ source tree CVS-aware
9542 - renamed the package from SSLeay to OpenSSL (the files still contain
9543 their history because I've copied them in the repository)
9544 - removed obsolete files (the test scripts will be replaced
9545 by better Test::Harness variants in the future)
9546 [Ralf S. Engelschall]
9548 *) First cut for a very conservative source tree cleanup:
9549 1. merge various obsolete readme texts into doc/ssleay.txt
9550 where we collect the old documents and readme texts.
9551 2. remove the first part of files where I'm already sure that we no
9552 longer need them because of three reasons: either they are just temporary
9553 files which were left by Eric or they are preserved original files where
9554 I've verified that the diff is also available in the CVS via "cvs diff
9555 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9556 the crypto/md/ stuff).
9557 [Ralf S. Engelschall]
9559 *) More extension code. Incomplete support for subject and issuer alt
9560 name, issuer and authority key id. Change the i2v function parameters
9561 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9562 what that's for :-) Fix to ASN1 macro which messed up
9563 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9566 *) Preliminary support for ENUMERATED type. This is largely copied from the
9570 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9571 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9573 *) Make sure `make rehash' target really finds the `openssl' program.
9574 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9576 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9577 like to hear about it if this slows down other processors.
9580 *) Add CygWin32 platform information to Configure script.
9581 [Alan Batie <batie@aahz.jf.intel.com>]
9583 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9584 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9586 *) New program nseq to manipulate netscape certificate sequences
9589 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9593 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9594 but the BN code had some problems that would cause failures when
9595 doing certificate verification and some other functions.
9596 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9598 *) Add ASN1 and PEM code to support netscape certificate sequences.
9601 *) Add ASN1 and PEM code to support netscape certificate sequences.
9604 *) Add several PKIX and private extended key usage OIDs.
9607 *) Modify the 'ca' program to handle the new extension code. Modify
9608 openssl.cnf for new extension format, add comments.
9611 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9612 and add a sample to openssl.cnf so req -x509 now adds appropriate
9616 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9617 error code, add initial support to X509_print() and x509 application.
9620 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9621 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9622 stuff is currently isolated and isn't even compiled yet.
9625 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9626 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9627 Removed the versions check from X509 routines when loading extensions:
9628 this allows certain broken certificates that don't set the version
9629 properly to be processed.
9632 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9633 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9634 can still be regenerated with "make depend".
9637 *) Spelling mistake in C version of CAST-128.
9638 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9640 *) Changes to the error generation code. The perl script err-code.pl
9641 now reads in the old error codes and retains the old numbers, only
9642 adding new ones if necessary. It also only changes the .err files if new
9643 codes are added. The makefiles have been modified to only insert errors
9644 when needed (to avoid needlessly modifying header files). This is done
9645 by only inserting errors if the .err file is newer than the auto generated
9646 C file. To rebuild all the error codes from scratch (the old behaviour)
9647 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9648 or delete all the .err files.
9651 *) CAST-128 was incorrectly implemented for short keys. The C version has
9652 been fixed, but is untested. The assembler versions are also fixed, but
9653 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9654 to regenerate it if needed.
9655 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9656 Hagino <itojun@kame.net>]
9658 *) File was opened incorrectly in randfile.c.
9659 [Ulf Möller <ulf@fitug.de>]
9661 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9662 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9663 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9664 al: it's just almost always a UTCTime. Note this patch adds new error
9665 codes so do a "make errors" if there are problems.
9668 *) Correct Linux 1 recognition in config.
9669 [Ulf Möller <ulf@fitug.de>]
9671 *) Remove pointless MD5 hash when using DSA keys in ca.
9672 [Anonymous <nobody@replay.com>]
9674 *) Generate an error if given an empty string as a cert directory. Also
9675 generate an error if handed NULL (previously returned 0 to indicate an
9676 error, but didn't set one).
9677 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9679 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9682 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9683 parameters. This was causing a warning which killed off the Win32 compile.
9686 *) Remove C++ style comments from crypto/bn/bn_local.h.
9687 [Neil Costigan <neil.costigan@celocom.com>]
9689 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9690 based on a text string, looking up short and long names and finally
9691 "dot" format. The "dot" format stuff didn't work. Added new function
9692 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9693 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9694 OID is not part of the table.
9697 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9698 X509_LOOKUP_by_alias().
9701 *) Sort openssl functions by name.
9704 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9705 encryption from sample DSA keys (in case anyone is interested the password
9709 *) Make _all_ *_free functions accept a NULL pointer.
9710 [Frans Heymans <fheymans@isaserver.be>]
9712 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9714 [Anonymous <nobody@replay.com>]
9716 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9717 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9719 *) Don't blow it for numeric -newkey arguments to apps/req.
9720 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9722 *) Temp key "for export" tests were wrong in s3_srvr.c.
9723 [Anonymous <nobody@replay.com>]
9725 *) Add prototype for temp key callback functions
9726 SSL_CTX_set_tmp_{rsa,dh}_callback().
9729 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9730 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9733 *) X509_name_add_entry() freed the wrong thing after an error.
9734 [Arne Ansper <arne@ats.cyber.ee>]
9736 *) rsa_eay.c would attempt to free a NULL context.
9737 [Arne Ansper <arne@ats.cyber.ee>]
9739 *) BIO_s_socket() had a broken should_retry() on Windoze.
9740 [Arne Ansper <arne@ats.cyber.ee>]
9742 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9743 [Arne Ansper <arne@ats.cyber.ee>]
9745 *) Make sure the already existing X509_STORE->depth variable is initialized
9746 in X509_STORE_new(), but document the fact that this variable is still
9747 unused in the certificate verification process.
9748 [Ralf S. Engelschall]
9750 *) Fix the various library and apps files to free up pkeys obtained from
9751 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9754 *) Fix reference counting in X509_PUBKEY_get(). This makes
9755 demos/maurice/example2.c work, amongst others, probably.
9756 [Steve Henson and Ben Laurie]
9758 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9759 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9760 are no longer created. This way we have a single and consistent command
9761 line interface `openssl <command>', similar to `cvs <command>'.
9762 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9764 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9765 BIT STRING wrapper always have zero unused bits.
9768 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9771 *) Make the top-level INSTALL documentation easier to understand.
9774 *) Makefiles updated to exit if an error occurs in a sub-directory
9775 make (including if user presses ^C) [Paul Sutton]
9777 *) Make Montgomery context stuff explicit in RSA data structure.
9780 *) Fix build order of pem and err to allow for generated pem.h.
9783 *) Fix renumbering bug in X509_NAME_delete_entry().
9786 *) Enhanced the err-ins.pl script so it makes the error library number
9787 global and can add a library name. This is needed for external ASN1 and
9788 other error libraries.
9791 *) Fixed sk_insert which never worked properly.
9794 *) Fix ASN1 macros so they can handle indefinite length construted
9795 EXPLICIT tags. Some non standard certificates use these: they can now
9799 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9800 into a single doc/ssleay.txt bundle. This way the information is still
9801 preserved but no longer messes up this directory. Now it's new room for
9802 the new set of documenation files.
9803 [Ralf S. Engelschall]
9805 *) SETs were incorrectly DER encoded. This was a major pain, because they
9806 shared code with SEQUENCEs, which aren't coded the same. This means that
9807 almost everything to do with SETs or SEQUENCEs has either changed name or
9808 number of arguments.
9809 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9811 *) Fix test data to work with the above.
9814 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9815 was already fixed by Eric for 0.9.1 it seems.
9816 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9818 *) Autodetect FreeBSD3.
9821 *) Fix various bugs in Configure. This affects the following platforms:
9825 unixware-2.0-pentium
9829 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9830 before they are needed.
9833 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9837 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9839 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9840 changed SSLeay to OpenSSL in version strings.
9841 [Ralf S. Engelschall]
9843 *) Some fixups to the top-level documents.
9846 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9847 because the symlink to include/ was missing.
9848 [Ralf S. Engelschall]
9850 *) Incorporated the popular no-RSA/DSA-only patches
9851 which allow to compile a RSA-free SSLeay.
9852 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9854 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9855 when "ssleay" is still not found.
9856 [Ralf S. Engelschall]
9858 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9859 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9861 *) Updated the README file.
9862 [Ralf S. Engelschall]
9864 *) Added various .cvsignore files in the CVS repository subdirs
9865 to make a "cvs update" really silent.
9866 [Ralf S. Engelschall]
9868 *) Recompiled the error-definition header files and added
9869 missing symbols to the Win32 linker tables.
9870 [Ralf S. Engelschall]
9872 *) Cleaned up the top-level documents;
9873 o new files: CHANGES and LICENSE
9874 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9875 o merged COPYRIGHT into LICENSE
9876 o removed obsolete TODO file
9877 o renamed MICROSOFT to INSTALL.W32
9878 [Ralf S. Engelschall]
9880 *) Removed dummy files from the 0.9.1b source tree:
9881 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9882 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9883 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9884 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9885 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9886 [Ralf S. Engelschall]
9888 *) Added various platform portability fixes.
9891 *) The Genesis of the OpenSSL rpject:
9892 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9893 Young and Tim J. Hudson created while they were working for C2Net until
9895 [The OpenSSL Project]
9898 Changes between 0.9.0b and 0.9.1b [not released]
9900 *) Updated a few CA certificates under certs/
9903 *) Changed some BIGNUM api stuff.
9906 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9907 DGUX x86, Linux Alpha, etc.
9910 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9911 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9915 *) Add -strparse option to asn1pars program which parses nested
9917 [Dr Stephen Henson <shenson@bigfoot.com>]
9919 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9922 *) DSA fix for "ca" program.
9925 *) Added "-genkey" option to "dsaparam" program.
9928 *) Added RIPE MD160 (rmd160) message digest.
9931 *) Added -a (all) option to "ssleay version" command.
9934 *) Added PLATFORM define which is the id given to Configure.
9937 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9940 *) Extended the ASN.1 parser routines.
9943 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9946 *) Added a BN_CTX to the BN library.
9949 *) Fixed the weak key values in DES library
9952 *) Changed API in EVP library for cipher aliases.
9955 *) Added support for RC2/64bit cipher.
9958 *) Converted the lhash library to the crypto/mem.c functions.
9961 *) Added more recognized ASN.1 object ids.
9964 *) Added more RSA padding checks for SSL/TLS.
9967 *) Added BIO proxy/filter functionality.
9970 *) Added extra_certs to SSL_CTX which can be used
9971 send extra CA certificates to the client in the CA cert chain sending
9972 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9975 *) Now Fortezza is denied in the authentication phase because
9976 this is key exchange mechanism is not supported by SSLeay at all.
9979 *) Additional PKCS1 checks.
9982 *) Support the string "TLSv1" for all TLS v1 ciphers.
9985 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9986 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9989 *) Fixed a few memory leaks.
9992 *) Fixed various code and comment typos.
9995 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9996 bytes sent in the client random.
9997 [Edward Bishop <ebishop@spyglass.com>]