5 Changes between 1.0.1a and 1.0.1b [xx XXX xxxx]
7 *) OpenSSL 1.0.0 set SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
8 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
9 mean any application compiled against OpenSSL 1.0.0 headers setting
10 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
11 TLS 1.1 also. Fix this by changing the value ot SSL_OP_NO_TLSv1_1 to
12 0x10000000L Any application which was previously compiled against
13 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
14 will need to be recompiled as a result.
17 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
18 disable just protocol X, but all protocols above X *if* there are
19 protocols *below* X still enabled. In more practical terms it means
20 that if application wants to disable TLS1.0 in favor of TLS1.1 and
21 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
22 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2.
25 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
27 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
28 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
29 in CRYPTO_realloc_clean.
31 Thanks to Tavis Ormandy, Google Security Team, for discovering this
32 issue and to Adam Langley <agl@chromium.org> for fixing it.
34 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
36 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
39 *) Workarounds for some broken servers that "hang" if a client hello
40 record length exceeds 255 bytes.
42 1. Do not use record version number > TLS 1.0 in initial client
43 hello: some (but not all) hanging servers will now work.
44 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
45 the number of ciphers sent in the client hello. This should be
46 set to an even number, such as 50, for example by passing:
47 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
48 Most broken servers should now work.
49 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
50 TLS 1.2 client support entirely.
53 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
56 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
58 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
59 STRING form instead of a DigestInfo.
62 *) The format used for MDC2 RSA signatures is inconsistent between EVP
63 and the RSA_sign/RSA_verify functions. This was made more apparent when
64 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
65 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
66 the correct format in RSA_verify so both forms transparently work.
69 *) Some servers which support TLS 1.0 can choke if we initially indicate
70 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
71 encrypted premaster secret. As a workaround use the maximum pemitted
72 client version in client hello, this should keep such servers happy
73 and still work with previous versions of OpenSSL.
76 *) Add support for TLS/DTLS heartbeats.
77 [Robin Seggelmann <seggelmann@fh-muenster.de>]
79 *) Add support for SCTP.
80 [Robin Seggelmann <seggelmann@fh-muenster.de>]
82 *) Improved PRNG seeding for VOS.
83 [Paul Green <Paul.Green@stratus.com>]
85 *) Extensive assembler packs updates, most notably:
87 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
88 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
89 - x86_64: bit-sliced AES implementation;
90 - ARM: NEON support, contemporary platforms optimizations;
91 - s390x: z196 support;
92 - *: GHASH and GF(2^m) multiplication implementations;
96 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
97 (removal of unnecessary code)
98 [Peter Sylvester <peter.sylvester@edelweb.fr>]
100 *) Add TLS key material exporter from RFC 5705.
103 *) Add DTLS-SRTP negotiation from RFC 5764.
106 *) Add Next Protocol Negotiation,
107 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
108 disabled with a no-npn flag to config or Configure. Code donated
110 [Adam Langley <agl@google.com> and Ben Laurie]
112 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
113 NIST-P256, NIST-P521, with constant-time single point multiplication on
114 typical inputs. Compiler support for the nonstandard type __uint128_t is
115 required to use this (present in gcc 4.4 and later, for 64-bit builds).
116 Code made available under Apache License version 2.0.
118 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
119 line to include this in your build of OpenSSL, and run "make depend" (or
120 "make update"). This enables the following EC_METHODs:
122 EC_GFp_nistp224_method()
123 EC_GFp_nistp256_method()
124 EC_GFp_nistp521_method()
126 EC_GROUP_new_by_curve_name() will automatically use these (while
127 EC_GROUP_new_curve_GFp() currently prefers the more flexible
129 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
131 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
132 all platforms. Move ssize_t definition from e_os.h to the public
133 header file e_os2.h as it now appears in public header file cms.h
136 *) New -sigopt option to the ca, req and x509 utilities. Additional
137 signature parameters can be passed using this option and in
141 *) Add RSA PSS signing function. This will generate and set the
142 appropriate AlgorithmIdentifiers for PSS based on those in the
143 corresponding EVP_MD_CTX structure. No application support yet.
146 *) Support for companion algorithm specific ASN1 signing routines.
147 New function ASN1_item_sign_ctx() signs a pre-initialised
148 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
149 the appropriate parameters.
152 *) Add new algorithm specific ASN1 verification initialisation function
153 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
154 handling will be the same no matter what EVP_PKEY_METHOD is used.
155 Add a PSS handler to support verification of PSS signatures: checked
156 against a number of sample certificates.
159 *) Add signature printing for PSS. Add PSS OIDs.
160 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
162 *) Add algorithm specific signature printing. An individual ASN1 method
163 can now print out signatures instead of the standard hex dump.
165 More complex signatures (e.g. PSS) can print out more meaningful
166 information. Include DSA version that prints out the signature
170 *) Password based recipient info support for CMS library: implementing
174 *) Split password based encryption into PBES2 and PBKDF2 functions. This
175 neatly separates the code into cipher and PBE sections and is required
176 for some algorithms that split PBES2 into separate pieces (such as
180 *) Session-handling fixes:
181 - Fix handling of connections that are resuming with a session ID,
182 but also support Session Tickets.
183 - Fix a bug that suppressed issuing of a new ticket if the client
184 presented a ticket with an expired session.
185 - Try to set the ticket lifetime hint to something reasonable.
186 - Make tickets shorter by excluding irrelevant information.
187 - On the client side, don't ignore renewed tickets.
188 [Adam Langley, Bodo Moeller (Google)]
190 *) Fix PSK session representation.
193 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
195 This work was sponsored by Intel.
198 *) Add GCM support to TLS library. Some custom code is needed to split
199 the IV between the fixed (from PRF) and explicit (from TLS record)
200 portions. This adds all GCM ciphersuites supported by RFC5288 and
201 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
202 add a special AESGCM string for GCM only.
205 *) Expand range of ctrls for AES GCM. Permit setting invocation
206 field on decrypt and retrieval of invocation field only on encrypt.
209 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
210 As required by RFC5289 these ciphersuites cannot be used if for
211 versions of TLS earlier than 1.2.
214 *) For FIPS capable OpenSSL interpret a NULL default public key method
215 as unset and return the appopriate default but do *not* set the default.
216 This means we can return the appopriate method in applications that
217 swicth between FIPS and non-FIPS modes.
220 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
221 ENGINE is used then we cannot handle that in the FIPS module so we
222 keep original code iff non-FIPS operations are allowed.
225 *) Add -attime option to openssl utilities.
226 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
228 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
231 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
232 FIPS EC methods unconditionally for now.
235 *) New build option no-ec2m to disable characteristic 2 code.
238 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
239 all cases can be covered as some introduce binary incompatibilities.
242 *) Redirect RSA operations to FIPS module including keygen,
243 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
246 *) Add similar low level API blocking to ciphers.
249 *) Low level digest APIs are not approved in FIPS mode: any attempt
250 to use these will cause a fatal error. Applications that *really* want
251 to use them can use the private_* version instead.
254 *) Redirect cipher operations to FIPS module for FIPS builds.
257 *) Redirect digest operations to FIPS module for FIPS builds.
260 *) Update build system to add "fips" flag which will link in fipscanister.o
261 for static and shared library builds embedding a signature if needed.
264 *) Output TLS supported curves in preference order instead of numerical
265 order. This is currently hardcoded for the highest order curves first.
266 This should be configurable so applications can judge speed vs strength.
269 *) Add TLS v1.2 server support for client authentication.
272 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
276 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
277 FIPS modules versions.
280 *) Add TLS v1.2 client side support for client authentication. Keep cache
281 of handshake records longer as we don't know the hash algorithm to use
282 until after the certificate request message is received.
285 *) Initial TLS v1.2 client support. Add a default signature algorithms
286 extension including all the algorithms we support. Parse new signature
287 format in client key exchange. Relax some ECC signing restrictions for
288 TLS v1.2 as indicated in RFC5246.
291 *) Add server support for TLS v1.2 signature algorithms extension. Switch
292 to new signature format when needed using client digest preference.
293 All server ciphersuites should now work correctly in TLS v1.2. No client
294 support yet and no support for client certificates.
297 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
298 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
299 ciphersuites. At present only RSA key exchange ciphersuites work with
300 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
301 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
302 and version checking.
305 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
306 with this defined it will not be affected by any changes to ssl internal
307 structures. Add several utility functions to allow openssl application
308 to work with OPENSSL_NO_SSL_INTERN defined.
312 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
314 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
317 *) Permit abbreviated handshakes when renegotiating using the function
318 SSL_renegotiate_abbreviated().
319 [Robin Seggelmann <seggelmann@fh-muenster.de>]
321 *) Add call to ENGINE_register_all_complete() to
322 ENGINE_load_builtin_engines(), so some implementations get used
323 automatically instead of needing explicit application support.
326 *) Add support for TLS key exporter as described in RFC5705.
327 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
329 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
330 a few changes are required:
332 Add SSL_OP_NO_TLSv1_1 flag.
334 Update version checking logic to handle version 1.1.
335 Add explicit IV handling (ported from DTLS code).
336 Add command line options to s_client/s_server.
339 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
341 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
342 in CMS and PKCS7 code. When RSA decryption fails use a random key for
343 content decryption and always return the same error. Note: this attack
344 needs on average 2^20 messages so it only affects automated senders. The
345 old behaviour can be reenabled in the CMS code by setting the
346 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
347 an MMA defence is not necessary.
348 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
349 this issue. (CVE-2012-0884)
352 *) Fix CVE-2011-4619: make sure we really are receiving a
353 client hello before rejecting multiple SGC restarts. Thanks to
354 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
357 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
359 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
360 Thanks to Antonio Martin, Enterprise Secure Access Research and
361 Development, Cisco Systems, Inc. for discovering this bug and
362 preparing a fix. (CVE-2012-0050)
365 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
367 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
368 of the Vaudenay padding oracle attack on CBC mode encryption
369 which enables an efficient plaintext recovery attack against
370 the OpenSSL implementation of DTLS. Their attack exploits timing
371 differences arising during decryption processing. A research
372 paper describing this attack can be found at:
373 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
374 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
375 Security Group at Royal Holloway, University of London
376 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
377 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
378 for preparing the fix. (CVE-2011-4108)
379 [Robin Seggelmann, Michael Tuexen]
381 *) Clear bytes used for block padding of SSL 3.0 records.
383 [Adam Langley (Google)]
385 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
386 Kadianakis <desnacked@gmail.com> for discovering this issue and
387 Adam Langley for preparing the fix. (CVE-2011-4619)
388 [Adam Langley (Google)]
390 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
391 [Andrey Kulikov <amdeich@gmail.com>]
393 *) Prevent malformed RFC3779 data triggering an assertion failure.
394 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
395 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
396 [Rob Austein <sra@hactrn.net>]
398 *) Improved PRNG seeding for VOS.
399 [Paul Green <Paul.Green@stratus.com>]
401 *) Fix ssl_ciph.c set-up race.
402 [Adam Langley (Google)]
404 *) Fix spurious failures in ecdsatest.c.
405 [Emilia Käsper (Google)]
407 *) Fix the BIO_f_buffer() implementation (which was mixing different
408 interpretations of the '..._len' fields).
409 [Adam Langley (Google)]
411 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
412 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
413 threads won't reuse the same blinding coefficients.
415 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
416 lock to call BN_BLINDING_invert_ex, and avoids one use of
417 BN_BLINDING_update for each BN_BLINDING structure (previously,
418 the last update always remained unused).
419 [Emilia Käsper (Google)]
421 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
422 [Bob Buckholz (Google)]
424 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
426 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
427 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
428 [Kaspar Brand <ossl@velox.ch>]
430 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
431 for multi-threaded use of ECDH. (CVE-2011-3210)
432 [Adam Langley (Google)]
434 *) Fix x509_name_ex_d2i memory leak on bad inputs.
437 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
438 signature public key algorithm by using OID xref utilities instead.
439 Before this you could only use some ECC ciphersuites with SHA1 only.
442 *) Add protection against ECDSA timing attacks as mentioned in the paper
443 by Billy Bob Brumley and Nicola Tuveri, see:
445 http://eprint.iacr.org/2011/232.pdf
447 [Billy Bob Brumley and Nicola Tuveri]
449 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
451 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
452 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
454 *) Fix bug in string printing code: if *any* escaping is enabled we must
455 escape the escape character (backslash) or the resulting string is
459 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
461 *) Disable code workaround for ancient and obsolete Netscape browsers
462 and servers: an attacker can use it in a ciphersuite downgrade attack.
463 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
466 *) Fixed J-PAKE implementation error, originally discovered by
467 Sebastien Martini, further info and confirmation from Stefan
468 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
471 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
473 *) Fix extension code to avoid race conditions which can result in a buffer
474 overrun vulnerability: resumed sessions must not be modified as they can
475 be shared by multiple threads. CVE-2010-3864
478 *) Fix WIN32 build system to correctly link an ENGINE directory into
482 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
484 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
486 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
488 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
490 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
491 context. The operation can be customised via the ctrl mechanism in
492 case ENGINEs want to include additional functionality.
495 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
498 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
499 output hashes compatible with older versions of OpenSSL.
500 [Willy Weisz <weisz@vcpc.univie.ac.at>]
502 *) Fix compression algorithm handling: if resuming a session use the
503 compression algorithm of the resumed session instead of determining
504 it from client hello again. Don't allow server to change algorithm.
507 *) Add load_crls() function to apps tidying load_certs() too. Add option
508 to verify utility to allow additional CRLs to be included.
511 *) Update OCSP request code to permit adding custom headers to the request:
512 some responders need this.
515 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
517 [Julia Lawall <julia@diku.dk>]
519 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
520 needlessly dereferenced structures, used obsolete functions and
521 didn't handle all updated verify codes correctly.
524 *) Disable MD2 in the default configuration.
527 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
528 indicate the initial BIO being pushed or popped. This makes it possible
529 to determine whether the BIO is the one explicitly called or as a result
530 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
531 it handles reference counts correctly and doesn't zero out the I/O bio
532 when it is not being explicitly popped. WARNING: applications which
533 included workarounds for the old buggy behaviour will need to be modified
534 or they could free up already freed BIOs.
537 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
538 renaming to all platforms (within the 0.9.8 branch, this was
539 done conditionally on Netware platforms to avoid a name clash).
540 [Guenter <lists@gknw.net>]
542 *) Add ECDHE and PSK support to DTLS.
543 [Michael Tuexen <tuexen@fh-muenster.de>]
545 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
549 *) Add "missing" function EVP_MD_flags() (without this the only way to
550 retrieve a digest flags is by accessing the structure directly. Update
551 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
552 or cipher is registered as in the "from" argument. Print out all
553 registered digests in the dgst usage message instead of manually
554 attempting to work them out.
557 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
558 this allows the use of compression and extensions. Change default cipher
559 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
560 by default unless an application cipher string requests it.
563 *) Alter match criteria in PKCS12_parse(). It used to try to use local
564 key ids to find matching certificates and keys but some PKCS#12 files
565 don't follow the (somewhat unwritten) rules and this strategy fails.
566 Now just gather all certificates together and the first private key
567 then look for the first certificate that matches the key.
570 *) Support use of registered digest and cipher names for dgst and cipher
571 commands instead of having to add each one as a special case. So now
578 openssl dgst -sha256 foo
580 and this works for ENGINE based algorithms too.
584 *) Update Gost ENGINE to support parameter files.
585 [Victor B. Wagner <vitus@cryptocom.ru>]
587 *) Support GeneralizedTime in ca utility.
588 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
590 *) Enhance the hash format used for certificate directory links. The new
591 form uses the canonical encoding (meaning equivalent names will work
592 even if they aren't identical) and uses SHA1 instead of MD5. This form
593 is incompatible with the older format and as a result c_rehash should
594 be used to rebuild symbolic links.
597 *) Make PKCS#8 the default write format for private keys, replacing the
598 traditional format. This form is standardised, more secure and doesn't
599 include an implicit MD5 dependency.
602 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
603 committed to OpenSSL should pass this lot as a minimum.
606 *) Add session ticket override functionality for use by EAP-FAST.
607 [Jouni Malinen <j@w1.fi>]
609 *) Modify HMAC functions to return a value. Since these can be implemented
610 in an ENGINE errors can occur.
613 *) Type-checked OBJ_bsearch_ex.
616 *) Type-checked OBJ_bsearch. Also some constification necessitated
617 by type-checking. Still to come: TXT_DB, bsearch(?),
618 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
622 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
623 seconds to a tm structure directly, instead of going through OS
624 specific date routines. This avoids any issues with OS routines such
625 as the year 2038 bug. New *_adj() functions for ASN1 time structures
626 and X509_time_adj_ex() to cover the extended range. The existing
627 X509_time_adj() is still usable and will no longer have any date issues.
630 *) Delta CRL support. New use deltas option which will attempt to locate
631 and search any appropriate delta CRLs available.
633 This work was sponsored by Google.
636 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
637 code and add additional score elements. Validate alternate CRL paths
638 as part of the CRL checking and indicate a new error "CRL path validation
639 error" in this case. Applications wanting additional details can use
640 the verify callback and check the new "parent" field. If this is not
641 NULL CRL path validation is taking place. Existing applications wont
642 see this because it requires extended CRL support which is off by
645 This work was sponsored by Google.
648 *) Support for freshest CRL extension.
650 This work was sponsored by Google.
653 *) Initial indirect CRL support. Currently only supported in the CRLs
654 passed directly and not via lookup. Process certificate issuer
655 CRL entry extension and lookup CRL entries by bother issuer name
656 and serial number. Check and process CRL issuer entry in IDP extension.
658 This work was sponsored by Google.
661 *) Add support for distinct certificate and CRL paths. The CRL issuer
662 certificate is validated separately in this case. Only enabled if
663 an extended CRL support flag is set: this flag will enable additional
664 CRL functionality in future.
666 This work was sponsored by Google.
669 *) Add support for policy mappings extension.
671 This work was sponsored by Google.
674 *) Fixes to pathlength constraint, self issued certificate handling,
675 policy processing to align with RFC3280 and PKITS tests.
677 This work was sponsored by Google.
680 *) Support for name constraints certificate extension. DN, email, DNS
681 and URI types are currently supported.
683 This work was sponsored by Google.
686 *) To cater for systems that provide a pointer-based thread ID rather
687 than numeric, deprecate the current numeric thread ID mechanism and
688 replace it with a structure and associated callback type. This
689 mechanism allows a numeric "hash" to be extracted from a thread ID in
690 either case, and on platforms where pointers are larger than 'long',
691 mixing is done to help ensure the numeric 'hash' is usable even if it
692 can't be guaranteed unique. The default mechanism is to use "&errno"
693 as a pointer-based thread ID to distinguish between threads.
695 Applications that want to provide their own thread IDs should now use
696 CRYPTO_THREADID_set_callback() to register a callback that will call
697 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
699 Note that ERR_remove_state() is now deprecated, because it is tied
700 to the assumption that thread IDs are numeric. ERR_remove_state(0)
701 to free the current thread's error state should be replaced by
702 ERR_remove_thread_state(NULL).
704 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
705 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
706 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
707 application was previously providing a numeric thread callback that
708 was inappropriate for distinguishing threads, then uniqueness might
709 have been obtained with &errno that happened immediately in the
710 intermediate development versions of OpenSSL; this is no longer the
711 case, the numeric thread callback will now override the automatic use
713 [Geoff Thorpe, with help from Bodo Moeller]
715 *) Initial support for different CRL issuing certificates. This covers a
716 simple case where the self issued certificates in the chain exist and
717 the real CRL issuer is higher in the existing chain.
719 This work was sponsored by Google.
722 *) Removed effectively defunct crypto/store from the build.
725 *) Revamp of STACK to provide stronger type-checking. Still to come:
726 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
727 ASN1_STRING, CONF_VALUE.
730 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
731 RAM on SSL connections. This option can save about 34k per idle SSL.
734 *) Revamp of LHASH to provide stronger type-checking. Still to come:
735 STACK, TXT_DB, bsearch, qsort.
738 *) Initial support for Cryptographic Message Syntax (aka CMS) based
739 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
740 support for data, signedData, compressedData, digestedData and
741 encryptedData, envelopedData types included. Scripts to check against
742 RFC4134 examples draft and interop and consistency checks of many
743 content types and variants.
746 *) Add options to enc utility to support use of zlib compression BIO.
749 *) Extend mk1mf to support importing of options and assembly language
750 files from Configure script, currently only included in VC-WIN32.
751 The assembly language rules can now optionally generate the source
752 files from the associated perl scripts.
755 *) Implement remaining functionality needed to support GOST ciphersuites.
756 Interop testing has been performed using CryptoPro implementations.
757 [Victor B. Wagner <vitus@cryptocom.ru>]
759 *) s390x assembler pack.
762 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
766 *) Implement Opaque PRF Input TLS extension as specified in
767 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
768 official specification yet and no extension type assignment by
769 IANA exists, this extension (for now) will have to be explicitly
770 enabled when building OpenSSL by providing the extension number
771 to use. For example, specify an option
773 -DTLSEXT_TYPE_opaque_prf_input=0x9527
775 to the "config" or "Configure" script to enable the extension,
776 assuming extension number 0x9527 (which is a completely arbitrary
777 and unofficial assignment based on the MD5 hash of the Internet
778 Draft). Note that by doing so, you potentially lose
779 interoperability with other TLS implementations since these might
780 be using the same extension number for other purposes.
782 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
783 opaque PRF input value to use in the handshake. This will create
784 an interal copy of the length-'len' string at 'src', and will
785 return non-zero for success.
787 To get more control and flexibility, provide a callback function
790 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
791 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
795 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
798 Callback function 'cb' will be called in handshakes, and is
799 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
800 Argument 'arg' is for application purposes (the value as given to
801 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
802 be provided to the callback function). The callback function
803 has to return non-zero to report success: usually 1 to use opaque
804 PRF input just if possible, or 2 to enforce use of the opaque PRF
805 input. In the latter case, the library will abort the handshake
806 if opaque PRF input is not successfully negotiated.
808 Arguments 'peerinput' and 'len' given to the callback function
809 will always be NULL and 0 in the case of a client. A server will
810 see the client's opaque PRF input through these variables if
811 available (NULL and 0 otherwise). Note that if the server
812 provides an opaque PRF input, the length must be the same as the
813 length of the client's opaque PRF input.
815 Note that the callback function will only be called when creating
816 a new session (session resumption can resume whatever was
817 previously negotiated), and will not be called in SSL 2.0
818 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
819 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
820 for applications that need to enforce opaque PRF input.
824 *) Update ssl code to support digests other than SHA1+MD5 for handshake
827 [Victor B. Wagner <vitus@cryptocom.ru>]
829 *) Add RFC4507 support to OpenSSL. This includes the corrections in
830 RFC4507bis. The encrypted ticket format is an encrypted encoded
831 SSL_SESSION structure, that way new session features are automatically
834 If a client application caches session in an SSL_SESSION structure
835 support is transparent because tickets are now stored in the encoded
838 The SSL_CTX structure automatically generates keys for ticket
839 protection in servers so again support should be possible
840 with no application modification.
842 If a client or server wishes to disable RFC4507 support then the option
843 SSL_OP_NO_TICKET can be set.
845 Add a TLS extension debugging callback to allow the contents of any client
846 or server extensions to be examined.
848 This work was sponsored by Google.
851 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
852 OpenSSL should now compile cleanly on gcc 4.2
853 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
855 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
856 support including streaming MAC support: this is required for GOST
858 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
860 *) Add option -stream to use PKCS#7 streaming in smime utility. New
861 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
862 to output in BER and PEM format.
865 *) Experimental support for use of HMAC via EVP_PKEY interface. This
866 allows HMAC to be handled via the EVP_DigestSign*() interface. The
867 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
868 ENGINE support for HMAC keys which are unextractable. New -mac and
869 -macopt options to dgst utility.
872 *) New option -sigopt to dgst utility. Update dgst to use
873 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
874 alternative signing paramaters such as X9.31 or PSS in the dgst
878 *) Change ssl_cipher_apply_rule(), the internal function that does
879 the work each time a ciphersuite string requests enabling
880 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
881 removing ("!foo+bar") a class of ciphersuites: Now it maintains
882 the order of disabled ciphersuites such that those ciphersuites
883 that most recently went from enabled to disabled not only stay
884 in order with respect to each other, but also have higher priority
885 than other disabled ciphersuites the next time ciphersuites are
888 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
889 the same ciphersuites as with "HIGH" alone, but in a specific
890 order where the PSK ciphersuites come first (since they are the
891 most recently disabled ciphersuites when "HIGH" is parsed).
893 Also, change ssl_create_cipher_list() (using this new
894 funcionality) such that between otherwise identical
895 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
899 *) Change ssl_create_cipher_list() so that it automatically
900 arranges the ciphersuites in reasonable order before starting
901 to process the rule string. Thus, the definition for "DEFAULT"
902 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
903 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
904 This makes it much easier to arrive at a reasonable default order
905 in applications for which anonymous ciphers are OK (meaning
906 that you can't actually use DEFAULT).
907 [Bodo Moeller; suggested by Victor Duchovni]
909 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
910 processing) into multiple integers instead of setting
911 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
912 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
913 (These masks as well as the individual bit definitions are hidden
914 away into the non-exported interface ssl/ssl_locl.h, so this
915 change to the definition of the SSL_CIPHER structure shouldn't
916 affect applications.) This give us more bits for each of these
917 categories, so there is no longer a need to coagulate AES128 and
918 AES256 into a single algorithm bit, and to coagulate Camellia128
919 and Camellia256 into a single algorithm bit, which has led to all
922 Thus, among other things, the kludge introduced in 0.9.7m and
923 0.9.8e for masking out AES256 independently of AES128 or masking
924 out Camellia256 independently of AES256 is not needed here in 0.9.9.
926 With the change, we also introduce new ciphersuite aliases that
927 so far were missing: "AES128", "AES256", "CAMELLIA128", and
931 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
932 Use the leftmost N bytes of the signature input if the input is
933 larger than the prime q (with N being the size in bytes of q).
936 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
937 it yet and it is largely untested.
940 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
943 *) Initial incomplete changes to avoid need for function casts in OpenSSL
944 some compilers (gcc 4.2 and later) reject their use. Safestack is
945 reimplemented. Update ASN1 to avoid use of legacy functions.
948 *) Win32/64 targets are linked with Winsock2.
951 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
952 to external functions. This can be used to increase CRL handling
953 efficiency especially when CRLs are very large by (for example) storing
954 the CRL revoked certificates in a database.
957 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
958 new CRLs added to a directory can be used. New command line option
959 -verify_return_error to s_client and s_server. This causes real errors
960 to be returned by the verify callback instead of carrying on no matter
961 what. This reflects the way a "real world" verify callback would behave.
964 *) GOST engine, supporting several GOST algorithms and public key formats.
965 Kindly donated by Cryptocom.
968 *) Partial support for Issuing Distribution Point CRL extension. CRLs
969 partitioned by DP are handled but no indirect CRL or reason partitioning
970 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
971 selected via a scoring technique which handles IDP and AKID in CRLs.
974 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
975 will ultimately be used for all verify operations: this will remove the
976 X509_STORE dependency on certificate verification and allow alternative
977 lookup methods. X509_STORE based implementations of these two callbacks.
980 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
981 Modify get_crl() to find a valid (unexpired) CRL if possible.
984 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
985 this would be called X509_CRL_cmp() but that name is already used by
986 a function that just compares CRL issuer names. Cache several CRL
987 extensions in X509_CRL structure and cache CRLDP in X509.
990 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
991 this maps equivalent X509_NAME structures into a consistent structure.
992 Name comparison can then be performed rapidly using memcmp().
995 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
999 *) Allow digests to supply their own micalg string for S/MIME type using
1000 the ctrl EVP_MD_CTRL_MICALG.
1003 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1004 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1005 ctrl. It can then customise the structure before and/or after signing
1009 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1010 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1011 to free up any added signature OIDs.
1014 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1015 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1016 digest and cipher tables. New options added to openssl utility:
1017 list-message-digest-algorithms and list-cipher-algorithms.
1020 *) Change the array representation of binary polynomials: the list
1021 of degrees of non-zero coefficients is now terminated with -1.
1022 Previously it was terminated with 0, which was also part of the
1023 value; thus, the array representation was not applicable to
1024 polynomials where t^0 has coefficient zero. This change makes
1025 the array representation useful in a more general context.
1028 *) Various modifications and fixes to SSL/TLS cipher string
1029 handling. For ECC, the code now distinguishes between fixed ECDH
1030 with RSA certificates on the one hand and with ECDSA certificates
1031 on the other hand, since these are separate ciphersuites. The
1032 unused code for Fortezza ciphersuites has been removed.
1034 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1035 (not "ECDHE"). For consistency with the code for DH
1036 certificates, use of ECDH certificates is now considered ECDH
1037 authentication, not RSA or ECDSA authentication (the latter is
1038 merely the CA's signing algorithm and not actively used in the
1041 The temporary ciphersuite alias "ECCdraft" is no longer
1042 available, and ECC ciphersuites are no longer excluded from "ALL"
1043 and "DEFAULT". The following aliases now exist for RFC 4492
1044 ciphersuites, most of these by analogy with the DH case:
1046 kECDHr - ECDH cert, signed with RSA
1047 kECDHe - ECDH cert, signed with ECDSA
1048 kECDH - ECDH cert (signed with either RSA or ECDSA)
1049 kEECDH - ephemeral ECDH
1050 ECDH - ECDH cert or ephemeral ECDH
1056 AECDH - anonymous ECDH
1057 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1061 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1062 Use correct micalg parameters depending on digest(s) in signed message.
1065 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1066 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1069 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1070 an engine to register a method. Add ENGINE lookups for methods and
1071 functional reference processing.
1074 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1075 EVP_{Sign,Verify}* which allow an application to customise the signature
1079 *) New -resign option to smime utility. This adds one or more signers
1080 to an existing PKCS#7 signedData structure. Also -md option to use an
1081 alternative message digest algorithm for signing.
1084 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1085 create PKCS7 structures containing multiple signers. Update smime
1086 application to support multiple signers.
1089 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1093 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1094 Reorganize PBE internals to lookup from a static table using NIDs,
1095 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1096 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1097 PRF which will be automatically used with PBES2.
1100 *) Replace the algorithm specific calls to generate keys in "req" with the
1104 *) Update PKCS#7 enveloped data routines to use new API. This is now
1105 supported by any public key method supporting the encrypt operation. A
1106 ctrl is added to allow the public key algorithm to examine or modify
1107 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1111 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1112 a default digest type to use. In most cases this will be SHA1 but some
1113 algorithms (such as GOST) need to specify an alternative digest. The
1114 return value indicates how strong the prefernce is 1 means optional and
1115 2 is mandatory (that is it is the only supported type). Modify
1116 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1117 use the default md. Update openssl utilities to use the default digest
1118 type for signing if it is not explicitly indicated.
1121 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1122 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1123 signing method from the key type. This effectively removes the link
1124 between digests and public key types.
1127 *) Add an OID cross reference table and utility functions. Its purpose is to
1128 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1129 rsaEncryption. This will allow some of the algorithm specific hackery
1130 needed to use the correct OID to be removed.
1133 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1134 structures for PKCS7_sign(). They are now set up by the relevant public
1138 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1141 *) Add support for key derivation (agreement) in the API, DH method and
1145 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1146 public and private key formats. As a side effect these add additional
1147 command line functionality not previously available: DSA signatures can be
1148 generated and verified using pkeyutl and DH key support and generation in
1153 [Oliver Tappe <zooey@hirschkaefer.de>]
1155 *) New make target "install_html_docs" installs HTML renditions of the
1157 [Oliver Tappe <zooey@hirschkaefer.de>]
1159 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1160 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1161 support key and parameter generation and add initial key generation
1162 functionality for RSA.
1165 *) Add functions for main EVP_PKEY_method operations. The undocumented
1166 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1167 EVP_PKEY_{encrypt,decrypt}_old.
1170 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1171 key API, doesn't do much yet.
1174 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1175 public key algorithms. New option to openssl utility:
1176 "list-public-key-algorithms" to print out info.
1179 *) Implement the Supported Elliptic Curves Extension for
1180 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1183 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1184 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1187 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1188 utilities such as rsa, dsa, dsaparam etc except they process any key
1192 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1193 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1194 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1198 *) Initial support for pluggable public key ASN1.
1199 De-spaghettify the public key ASN1 handling. Move public and private
1200 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1201 algorithm specific handling to a single module within the relevant
1202 algorithm directory. Add functions to allow (near) opaque processing
1203 of public and private key structures.
1206 *) Implement the Supported Point Formats Extension for
1207 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1210 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1211 for the psk identity [hint] and the psk callback functions to the
1212 SSL_SESSION, SSL and SSL_CTX structure.
1215 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1219 SSL_CTX_use_psk_identity_hint
1220 SSL_get_psk_identity_hint
1221 SSL_get_psk_identity
1222 SSL_use_psk_identity_hint
1224 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1226 *) Add RFC 3161 compliant time stamp request creation, response generation
1227 and response verification functionality.
1228 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1230 *) Add initial support for TLS extensions, specifically for the server_name
1231 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1232 have new members for a host name. The SSL data structure has an
1233 additional member SSL_CTX *initial_ctx so that new sessions can be
1234 stored in that context to allow for session resumption, even after the
1235 SSL has been switched to a new SSL_CTX in reaction to a client's
1236 server_name extension.
1238 New functions (subject to change):
1240 SSL_get_servername()
1241 SSL_get_servername_type()
1244 New CTRL codes and macros (subject to change):
1246 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1247 - SSL_CTX_set_tlsext_servername_callback()
1248 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1249 - SSL_CTX_set_tlsext_servername_arg()
1250 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1252 openssl s_client has a new '-servername ...' option.
1254 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1255 '-key2 ...', '-servername_fatal' (subject to change). This allows
1256 testing the HostName extension for a specific single host name ('-cert'
1257 and '-key' remain fallbacks for handshakes without HostName
1258 negotiation). If the unrecogninzed_name alert has to be sent, this by
1259 default is a warning; it becomes fatal with the '-servername_fatal'
1262 [Peter Sylvester, Remy Allais, Christophe Renou]
1264 *) Whirlpool hash implementation is added.
1267 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1268 bn(64,32). Because of instruction set limitations it doesn't have
1269 any negative impact on performance. This was done mostly in order
1270 to make it possible to share assembler modules, such as bn_mul_mont
1271 implementations, between 32- and 64-bit builds without hassle.
1274 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1275 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1279 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1280 dedicated Montgomery multiplication procedure, is introduced.
1281 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1282 "64-bit" performance on certain 32-bit targets.
1285 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1286 in SSL structures. New SSL ctrl to set maximum send fragment size.
1287 Save memory by seeting the I/O buffer sizes dynamically instead of
1288 using the maximum available value.
1291 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1292 in addition to the text details.
1295 *) Very, very preliminary EXPERIMENTAL support for printing of general
1296 ASN1 structures. This currently produces rather ugly output and doesn't
1297 handle several customised structures at all.
1300 *) Integrated support for PVK file format and some related formats such
1301 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1302 these in the 'rsa' and 'dsa' utilities.
1305 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1308 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1309 place for the (very old) "NETSCAPE" format certificates which are now
1310 handled using new ASN1 code equivalents.
1313 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1314 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1315 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1318 *) Modify CRL distribution points extension code to print out previously
1319 unsupported fields. Enhance extension setting code to allow setting of
1323 *) Add print and set support for Issuing Distribution Point CRL extension.
1326 *) Change 'Configure' script to enable Camellia by default.
1329 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1331 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1332 Thanks to Antonio Martin, Enterprise Secure Access Research and
1333 Development, Cisco Systems, Inc. for discovering this bug and
1334 preparing a fix. (CVE-2012-0050)
1337 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1339 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1340 of the Vaudenay padding oracle attack on CBC mode encryption
1341 which enables an efficient plaintext recovery attack against
1342 the OpenSSL implementation of DTLS. Their attack exploits timing
1343 differences arising during decryption processing. A research
1344 paper describing this attack can be found at:
1345 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1346 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1347 Security Group at Royal Holloway, University of London
1348 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1349 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1350 for preparing the fix. (CVE-2011-4108)
1351 [Robin Seggelmann, Michael Tuexen]
1353 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1354 [Ben Laurie, Kasper <ekasper@google.com>]
1356 *) Clear bytes used for block padding of SSL 3.0 records.
1358 [Adam Langley (Google)]
1360 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1361 Kadianakis <desnacked@gmail.com> for discovering this issue and
1362 Adam Langley for preparing the fix. (CVE-2011-4619)
1363 [Adam Langley (Google)]
1365 *) Prevent malformed RFC3779 data triggering an assertion failure.
1366 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1367 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1368 [Rob Austein <sra@hactrn.net>]
1370 *) Fix ssl_ciph.c set-up race.
1371 [Adam Langley (Google)]
1373 *) Fix spurious failures in ecdsatest.c.
1374 [Emilia Käsper (Google)]
1376 *) Fix the BIO_f_buffer() implementation (which was mixing different
1377 interpretations of the '..._len' fields).
1378 [Adam Langley (Google)]
1380 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1381 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1382 threads won't reuse the same blinding coefficients.
1384 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1385 lock to call BN_BLINDING_invert_ex, and avoids one use of
1386 BN_BLINDING_update for each BN_BLINDING structure (previously,
1387 the last update always remained unused).
1388 [Emilia Käsper (Google)]
1390 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1391 for multi-threaded use of ECDH.
1392 [Adam Langley (Google)]
1394 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1397 *) Add protection against ECDSA timing attacks as mentioned in the paper
1398 by Billy Bob Brumley and Nicola Tuveri, see:
1400 http://eprint.iacr.org/2011/232.pdf
1402 [Billy Bob Brumley and Nicola Tuveri]
1404 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1406 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1407 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1409 *) Fix bug in string printing code: if *any* escaping is enabled we must
1410 escape the escape character (backslash) or the resulting string is
1414 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1416 *) Disable code workaround for ancient and obsolete Netscape browsers
1417 and servers: an attacker can use it in a ciphersuite downgrade attack.
1418 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1421 *) Fixed J-PAKE implementation error, originally discovered by
1422 Sebastien Martini, further info and confirmation from Stefan
1423 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1426 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1428 *) Fix extension code to avoid race conditions which can result in a buffer
1429 overrun vulnerability: resumed sessions must not be modified as they can
1430 be shared by multiple threads. CVE-2010-3864
1433 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1436 *) Don't reencode certificate when calculating signature: cache and use
1437 the original encoding instead. This makes signature verification of
1438 some broken encodings work correctly.
1441 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1442 is also one of the inputs.
1443 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1445 *) Don't repeatedly append PBE algorithms to table if they already exist.
1446 Sort table on each new add. This effectively makes the table read only
1447 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1451 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1453 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1456 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1457 access or freeing data twice (CVE-2010-0742)
1458 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1460 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1461 common in certificates and some applications which only call
1462 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1466 Reduce copying into .apps and .test in makevms.com
1467 Don't try to use blank CA certificate in CA.com
1468 Allow use of C files from original directories in maketests.com
1469 [Steven M. Schweda" <sms@antinode.info>]
1471 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1473 *) When rejecting SSL/TLS records due to an incorrect version number, never
1474 update s->server with a new major version number. As of
1475 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1476 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1477 the previous behavior could result in a read attempt at NULL when
1478 receiving specific incorrect SSL/TLS records once record payload
1479 protection is active. (CVE-2010-0740)
1480 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1482 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1483 could be crashed if the relevant tables were not present (e.g. chrooted).
1484 [Tomas Hoger <thoger@redhat.com>]
1486 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1488 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1489 [Martin Olsson, Neel Mehta]
1491 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1492 accommodate for stack sorting, always a write lock!).
1495 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1496 excessive delays in the RAND_poll(): over a minute. As a workaround
1497 include a time check in the inner Heap32Next loop too.
1500 *) The code that handled flushing of data in SSL/TLS originally used the
1501 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1502 the problem outlined in PR#1949. The fix suggested there however can
1503 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1504 of Apache). So instead simplify the code to flush unconditionally.
1505 This should be fine since flushing with no data to flush is a no op.
1508 *) Handle TLS versions 2.0 and later properly and correctly use the
1509 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1510 off ancient servers have a habit of sticking around for a while...
1513 *) Modify compression code so it frees up structures without using the
1514 ex_data callbacks. This works around a problem where some applications
1515 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1516 restarting) then use compression (e.g. SSL with compression) later.
1517 This results in significant per-connection memory leaks and
1518 has caused some security issues including CVE-2008-1678 and
1522 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1523 change when encrypting or decrypting.
1526 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1527 connect and renegotiate with servers which do not support RI.
1528 Until RI is more widely deployed this option is enabled by default.
1531 *) Add "missing" ssl ctrls to clear options and mode.
1534 *) If client attempts to renegotiate and doesn't support RI respond with
1535 a no_renegotiation alert as required by RFC5746. Some renegotiating
1536 TLS clients will continue a connection gracefully when they receive
1537 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1538 waiting for a server hello which it will never receive. Now we treat a
1539 received no_renegotiation alert as a fatal error. This is because
1540 applications requesting a renegotiation might well expect it to succeed
1541 and would have no code in place to handle the server denying it so the
1542 only safe thing to do is to terminate the connection.
1545 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1546 peer supports secure renegotiation and 0 otherwise. Print out peer
1547 renegotiation support in s_client/s_server.
1550 *) Replace the highly broken and deprecated SPKAC certification method with
1551 the updated NID creation version. This should correctly handle UTF8.
1554 *) Implement RFC5746. Re-enable renegotiation but require the extension
1555 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1556 turns out to be a bad idea. It has been replaced by
1557 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1558 SSL_CTX_set_options(). This is really not recommended unless you
1559 know what you are doing.
1560 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1562 *) Fixes to stateless session resumption handling. Use initial_ctx when
1563 issuing and attempting to decrypt tickets in case it has changed during
1564 servername handling. Use a non-zero length session ID when attempting
1565 stateless session resumption: this makes it possible to determine if
1566 a resumption has occurred immediately after receiving server hello
1567 (several places in OpenSSL subtly assume this) instead of later in
1571 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1572 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1573 fixes for a few places where the return code is not checked
1575 [Julia Lawall <julia@diku.dk>]
1577 *) Add --strict-warnings option to Configure script to include devteam
1578 warnings in other configurations.
1581 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1582 makes it possible to install openssl libraries in locations which
1583 have names other than "lib", for example "/usr/lib64" which some
1585 [Steve Henson, based on patch from Jeremy Utley]
1587 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1588 X690 8.9.12 and can produce some misleading textual output of OIDs.
1589 [Steve Henson, reported by Dan Kaminsky]
1591 *) Delete MD2 from algorithm tables. This follows the recommendation in
1592 several standards that it is not used in new applications due to
1593 several cryptographic weaknesses. For binary compatibility reasons
1594 the MD2 API is still compiled in by default.
1597 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1601 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1602 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1604 [Guenter <lists@gknw.net>]
1606 *) Fix the server certificate chain building code to use X509_verify_cert(),
1607 it used to have an ad-hoc builder which was unable to cope with anything
1608 other than a simple chain.
1609 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1611 *) Don't check self signed certificate signatures in X509_verify_cert()
1612 by default (a flag can override this): it just wastes time without
1613 adding any security. As a useful side effect self signed root CAs
1614 with non-FIPS digests are now usable in FIPS mode.
1617 *) In dtls1_process_out_of_seq_message() the check if the current message
1618 is already buffered was missing. For every new message was memory
1619 allocated, allowing an attacker to perform an denial of service attack
1620 with sending out of seq handshake messages until there is no memory
1621 left. Additionally every future messege was buffered, even if the
1622 sequence number made no sense and would be part of another handshake.
1623 So only messages with sequence numbers less than 10 in advance will be
1624 buffered. (CVE-2009-1378)
1625 [Robin Seggelmann, discovered by Daniel Mentz]
1627 *) Records are buffered if they arrive with a future epoch to be
1628 processed after finishing the corresponding handshake. There is
1629 currently no limitation to this buffer allowing an attacker to perform
1630 a DOS attack with sending records with future epochs until there is no
1631 memory left. This patch adds the pqueue_size() function to detemine
1632 the size of a buffer and limits the record buffer to 100 entries.
1634 [Robin Seggelmann, discovered by Daniel Mentz]
1636 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1637 parent structure is freed. (CVE-2009-1379)
1640 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1641 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1644 [Ilya O. <vrghost@gmail.com>]
1646 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1648 *) Disable renegotiation completely - this fixes a severe security
1649 problem (CVE-2009-3555) at the cost of breaking all
1650 renegotiation. Renegotiation can be re-enabled by setting
1651 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1652 run-time. This is really not recommended unless you know what
1656 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1658 *) Don't set val to NULL when freeing up structures, it is freed up by
1659 underlying code. If sizeof(void *) > sizeof(long) this can result in
1660 zeroing past the valid field. (CVE-2009-0789)
1661 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1663 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1664 checked correctly. This would allow some invalid signed attributes to
1665 appear to verify correctly. (CVE-2009-0591)
1666 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1668 *) Reject UniversalString and BMPString types with invalid lengths. This
1669 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1670 a legal length. (CVE-2009-0590)
1673 *) Set S/MIME signing as the default purpose rather than setting it
1674 unconditionally. This allows applications to override it at the store
1678 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1679 to handle some structures.
1682 *) Improve efficiency of mem_gets: don't search whole buffer each time
1684 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1686 *) New -hex option for openssl rand.
1689 *) Print out UTF8String and NumericString when parsing ASN1.
1692 *) Support NumericString type for name components.
1695 *) Allow CC in the environment to override the automatically chosen
1696 compiler. Note that nothing is done to ensure flags work with the
1700 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1702 *) Properly check EVP_VerifyFinal() and similar return values
1704 [Ben Laurie, Bodo Moeller, Google Security Team]
1706 *) Enable TLS extensions by default.
1709 *) Allow the CHIL engine to be loaded, whether the application is
1710 multithreaded or not. (This does not release the developer from the
1711 obligation to set up the dynamic locking callbacks.)
1712 [Sander Temme <sander@temme.net>]
1714 *) Use correct exit code if there is an error in dgst command.
1715 [Steve Henson; problem pointed out by Roland Dirlewanger]
1717 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1718 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1721 *) Add experimental JPAKE support, including demo authentication in
1722 s_client and s_server.
1725 *) Set the comparison function in v3_addr_canonize().
1726 [Rob Austein <sra@hactrn.net>]
1728 *) Add support for XMPP STARTTLS in s_client.
1729 [Philip Paeps <philip@freebsd.org>]
1731 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1732 to ensure that even with this option, only ciphersuites in the
1733 server's preference list will be accepted. (Note that the option
1734 applies only when resuming a session, so the earlier behavior was
1735 just about the algorithm choice for symmetric cryptography.)
1738 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1740 *) Fix NULL pointer dereference if a DTLS server received
1741 ChangeCipherSpec as first record (CVE-2009-1386).
1744 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1745 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1748 *) The fix in 0.9.8c that supposedly got rid of unsafe
1749 double-checked locking was incomplete for RSA blinding,
1750 addressing just one layer of what turns out to have been
1751 doubly unsafe triple-checked locking.
1753 So now fix this for real by retiring the MONT_HELPER macro
1754 in crypto/rsa/rsa_eay.c.
1756 [Bodo Moeller; problem pointed out by Marius Schilder]
1758 *) Various precautionary measures:
1760 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1762 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1763 (NB: This would require knowledge of the secret session ticket key
1764 to exploit, in which case you'd be SOL either way.)
1766 - Change bn_nist.c so that it will properly handle input BIGNUMs
1767 outside the expected range.
1769 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1772 [Neel Mehta, Bodo Moeller]
1774 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1775 the load fails. Useful for distros.
1776 [Ben Laurie and the FreeBSD team]
1778 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1781 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1784 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1786 This work was sponsored by Logica.
1789 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1790 keystores. Support for SSL/TLS client authentication too.
1791 Not compiled unless enable-capieng specified to Configure.
1793 This work was sponsored by Logica.
1796 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1797 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1798 attribute creation routines such as certifcate requests and PKCS#12
1802 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1804 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1805 handshake which could lead to a cilent crash as found using the
1806 Codenomicon TLS test suite (CVE-2008-1672)
1807 [Steve Henson, Mark Cox]
1809 *) Fix double free in TLS server name extensions which could lead to
1810 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1813 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1815 Clear the error queue to ensure that error entries left from
1816 older function calls do not interfere with the correct operation.
1817 [Lutz Jaenicke, Erik de Castro Lopo]
1819 *) Remove root CA certificates of commercial CAs:
1821 The OpenSSL project does not recommend any specific CA and does not
1822 have any policy with respect to including or excluding any CA.
1823 Therefore it does not make any sense to ship an arbitrary selection
1824 of root CA certificates with the OpenSSL software.
1827 *) RSA OAEP patches to fix two separate invalid memory reads.
1828 The first one involves inputs when 'lzero' is greater than
1829 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1830 before the beginning of from). The second one involves inputs where
1831 the 'db' section contains nothing but zeroes (there is a one-byte
1832 invalid read after the end of 'db').
1833 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1835 *) Partial backport from 0.9.9-dev:
1837 Introduce bn_mul_mont (dedicated Montgomery multiplication
1838 procedure) as a candidate for BIGNUM assembler implementation.
1839 While 0.9.9-dev uses assembler for various architectures, only
1840 x86_64 is available by default here in the 0.9.8 branch, and
1841 32-bit x86 is available through a compile-time setting.
1843 To try the 32-bit x86 assembler implementation, use Configure
1844 option "enable-montasm" (which exists only for this backport).
1846 As "enable-montasm" for 32-bit x86 disclaims code stability
1847 anyway, in this constellation we activate additional code
1848 backported from 0.9.9-dev for further performance improvements,
1849 namely BN_from_montgomery_word. (To enable this otherwise,
1850 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1852 [Andy Polyakov (backport partially by Bodo Moeller)]
1854 *) Add TLS session ticket callback. This allows an application to set
1855 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1856 values. This is useful for key rollover for example where several key
1857 sets may exist with different names.
1860 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1861 This was broken until now in 0.9.8 releases, such that the only way
1862 a registered ENGINE could be used (assuming it initialises
1863 successfully on the host) was to explicitly set it as the default
1864 for the relevant algorithms. This is in contradiction with 0.9.7
1865 behaviour and the documentation. With this fix, when an ENGINE is
1866 registered into a given algorithm's table of implementations, the
1867 'uptodate' flag is reset so that auto-discovery will be used next
1868 time a new context for that algorithm attempts to select an
1870 [Ian Lister (tweaked by Geoff Thorpe)]
1872 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1873 implemention in the following ways:
1875 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1878 Lack of BER streaming support means one pass streaming processing is
1879 only supported if data is detached: setting the streaming flag is
1880 ignored for embedded content.
1882 CMS support is disabled by default and must be explicitly enabled
1883 with the enable-cms configuration option.
1886 *) Update the GMP engine glue to do direct copies between BIGNUM and
1887 mpz_t when openssl and GMP use the same limb size. Otherwise the
1888 existing "conversion via a text string export" trick is still used.
1889 [Paul Sheer <paulsheer@gmail.com>]
1891 *) Zlib compression BIO. This is a filter BIO which compressed and
1892 uncompresses any data passed through it.
1895 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1896 RFC3394 compatible AES key wrapping.
1899 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1900 sets string data without copying. X509_ALGOR_set0() and
1901 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1902 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1903 from an X509_ATTRIBUTE structure optionally checking it occurs only
1904 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1908 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1909 to get the expected BN_FLG_CONSTTIME behavior.
1910 [Bodo Moeller (Google)]
1914 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1915 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1916 - added some more tests to do_tests.pl
1917 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1918 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1919 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1920 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1921 - various changes to netware.pl to enable gcc-cross builds on Win32
1923 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1924 - various changes to fix missing prototype warnings
1925 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1926 - added AES, WHIRLPOOL and CPUID assembler code to build files
1927 - added missing AES assembler make rules to mk1mf.pl
1928 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1929 [Guenter Knauf <eflash@gmx.net>]
1931 *) Implement certificate status request TLS extension defined in RFC3546.
1932 A client can set the appropriate parameters and receive the encoded
1933 OCSP response via a callback. A server can query the supplied parameters
1934 and set the encoded OCSP response in the callback. Add simplified examples
1935 to s_client and s_server.
1938 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1940 *) Fix various bugs:
1941 + Binary incompatibility of ssl_ctx_st structure
1942 + DTLS interoperation with non-compliant servers
1943 + Don't call get_session_cb() without proposed session
1944 + Fix ia64 assembler code
1945 [Andy Polyakov, Steve Henson]
1947 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1949 *) DTLS Handshake overhaul. There were longstanding issues with
1950 OpenSSL DTLS implementation, which were making it impossible for
1951 RFC 4347 compliant client to communicate with OpenSSL server.
1952 Unfortunately just fixing these incompatibilities would "cut off"
1953 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1954 server keeps tolerating non RFC compliant syntax. The opposite is
1955 not true, 0.9.8f client can not communicate with earlier server.
1956 This update even addresses CVE-2007-4995.
1959 *) Changes to avoid need for function casts in OpenSSL: some compilers
1960 (gcc 4.2 and later) reject their use.
1961 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1964 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1965 RFC4507bis. The encrypted ticket format is an encrypted encoded
1966 SSL_SESSION structure, that way new session features are automatically
1969 If a client application caches session in an SSL_SESSION structure
1970 support is transparent because tickets are now stored in the encoded
1973 The SSL_CTX structure automatically generates keys for ticket
1974 protection in servers so again support should be possible
1975 with no application modification.
1977 If a client or server wishes to disable RFC4507 support then the option
1978 SSL_OP_NO_TICKET can be set.
1980 Add a TLS extension debugging callback to allow the contents of any client
1981 or server extensions to be examined.
1983 This work was sponsored by Google.
1986 *) Add initial support for TLS extensions, specifically for the server_name
1987 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1988 have new members for a host name. The SSL data structure has an
1989 additional member SSL_CTX *initial_ctx so that new sessions can be
1990 stored in that context to allow for session resumption, even after the
1991 SSL has been switched to a new SSL_CTX in reaction to a client's
1992 server_name extension.
1994 New functions (subject to change):
1996 SSL_get_servername()
1997 SSL_get_servername_type()
2000 New CTRL codes and macros (subject to change):
2002 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2003 - SSL_CTX_set_tlsext_servername_callback()
2004 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2005 - SSL_CTX_set_tlsext_servername_arg()
2006 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2008 openssl s_client has a new '-servername ...' option.
2010 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2011 '-key2 ...', '-servername_fatal' (subject to change). This allows
2012 testing the HostName extension for a specific single host name ('-cert'
2013 and '-key' remain fallbacks for handshakes without HostName
2014 negotiation). If the unrecogninzed_name alert has to be sent, this by
2015 default is a warning; it becomes fatal with the '-servername_fatal'
2018 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2020 *) Add AES and SSE2 assembly language support to VC++ build.
2023 *) Mitigate attack on final subtraction in Montgomery reduction.
2026 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2027 (which previously caused an internal error).
2030 *) Squeeze another 10% out of IGE mode when in != out.
2033 *) AES IGE mode speedup.
2034 [Dean Gaudet (Google)]
2036 *) Add the Korean symmetric 128-bit cipher SEED (see
2037 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2038 add SEED ciphersuites from RFC 4162:
2040 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2041 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2042 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2043 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2045 To minimize changes between patchlevels in the OpenSSL 0.9.8
2046 series, SEED remains excluded from compilation unless OpenSSL
2047 is configured with 'enable-seed'.
2048 [KISA, Bodo Moeller]
2050 *) Mitigate branch prediction attacks, which can be practical if a
2051 single processor is shared, allowing a spy process to extract
2052 information. For detailed background information, see
2053 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2054 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2055 and Necessary Software Countermeasures"). The core of the change
2056 are new versions BN_div_no_branch() and
2057 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2058 respectively, which are slower, but avoid the security-relevant
2059 conditional branches. These are automatically called by BN_div()
2060 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2061 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2062 remove a conditional branch.
2064 BN_FLG_CONSTTIME is the new name for the previous
2065 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2066 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2067 in the exponent causes BN_mod_exp_mont() to use the alternative
2068 implementation in BN_mod_exp_mont_consttime().) The old name
2069 remains as a deprecated alias.
2071 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2072 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2073 constant-time implementations for more than just exponentiation.
2074 Here too the old name is kept as a deprecated alias.
2076 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2077 the BN_BLINDING structure gets an independent copy of the
2078 modulus. This means that the previous "BIGNUM *m" argument to
2079 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2080 essentially becomes "const BIGNUM *m", although we can't actually
2081 change this in the header file before 0.9.9. It allows
2082 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2083 enable BN_FLG_CONSTTIME.
2085 [Matthew D Wood (Intel Corp)]
2087 *) In the SSL/TLS server implementation, be strict about session ID
2088 context matching (which matters if an application uses a single
2089 external cache for different purposes). Previously,
2090 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2091 set. This did ensure strict client verification, but meant that,
2092 with applications using a single external cache for quite
2093 different requirements, clients could circumvent ciphersuite
2094 restrictions for a given session ID context by starting a session
2095 in a different context.
2098 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2099 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2100 authentication-only ciphersuites.
2103 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2104 not complete and could lead to a possible single byte overflow
2105 (CVE-2007-5135) [Ben Laurie]
2107 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2109 *) Since AES128 and AES256 (and similarly Camellia128 and
2110 Camellia256) share a single mask bit in the logic of
2111 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2112 kludge to work properly if AES128 is available and AES256 isn't
2113 (or if Camellia128 is available and Camellia256 isn't).
2116 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2117 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2118 When a point or a seed is encoded in a BIT STRING, we need to
2119 prevent the removal of trailing zero bits to get the proper DER
2120 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2121 of a NamedBitList, for which trailing 0 bits need to be removed.)
2124 *) Have SSL/TLS server implementation tolerate "mismatched" record
2125 protocol version while receiving ClientHello even if the
2126 ClientHello is fragmented. (The server can't insist on the
2127 particular protocol version it has chosen before the ServerHello
2128 message has informed the client about his choice.)
2131 *) Add RFC 3779 support.
2132 [Rob Austein for ARIN, Ben Laurie]
2134 *) Load error codes if they are not already present instead of using a
2135 static variable. This allows them to be cleanly unloaded and reloaded.
2136 Improve header file function name parsing.
2139 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2140 or CAPABILITY handshake as required by RFCs.
2143 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2145 *) Introduce limits to prevent malicious keys being able to
2146 cause a denial of service. (CVE-2006-2940)
2147 [Steve Henson, Bodo Moeller]
2149 *) Fix ASN.1 parsing of certain invalid structures that can result
2150 in a denial of service. (CVE-2006-2937) [Steve Henson]
2152 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2153 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2155 *) Fix SSL client code which could crash if connecting to a
2156 malicious SSLv2 server. (CVE-2006-4343)
2157 [Tavis Ormandy and Will Drewry, Google Security Team]
2159 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2160 match only those. Before that, "AES256-SHA" would be interpreted
2161 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2162 the same strength classification in 0.9.7h) as we currently only
2163 have a single AES bit in the ciphersuite description bitmap.
2164 That change, however, also applied to ciphersuite strings such as
2165 "RC4-MD5" that intentionally matched multiple ciphersuites --
2166 namely, SSL 2.0 ciphersuites in addition to the more common ones
2167 from SSL 3.0/TLS 1.0.
2169 So we change the selection algorithm again: Naming an explicit
2170 ciphersuite selects this one ciphersuite, and any other similar
2171 ciphersuite (same bitmap) from *other* protocol versions.
2172 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2173 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2175 Since SSL 2.0 does not have any ciphersuites for which the
2176 128/256 bit distinction would be relevant, this works for now.
2177 The proper fix will be to use different bits for AES128 and
2178 AES256, which would have avoided the problems from the beginning;
2179 however, bits are scarce, so we can only do this in a new release
2180 (not just a patchlevel) when we can change the SSL_CIPHER
2181 definition to split the single 'unsigned long mask' bitmap into
2182 multiple values to extend the available space.
2186 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2188 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2189 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2191 *) Add AES IGE and biIGE modes.
2194 *) Change the Unix randomness entropy gathering to use poll() when
2195 possible instead of select(), since the latter has some
2196 undesirable limitations.
2197 [Darryl Miles via Richard Levitte and Bodo Moeller]
2199 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2200 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2201 cannot be implicitly activated as part of, e.g., the "AES" alias.
2202 However, please upgrade to OpenSSL 0.9.9[-dev] for
2203 non-experimental use of the ECC ciphersuites to get TLS extension
2204 support, which is required for curve and point format negotiation
2205 to avoid potential handshake problems.
2208 *) Disable rogue ciphersuites:
2210 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2211 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2212 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2214 The latter two were purportedly from
2215 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2218 Also deactivate the remaining ciphersuites from
2219 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2220 unofficial, and the ID has long expired.
2223 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2224 dual-core machines) and other potential thread-safety issues.
2227 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2228 versions), which is now available for royalty-free use
2229 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2230 Also, add Camellia TLS ciphersuites from RFC 4132.
2232 To minimize changes between patchlevels in the OpenSSL 0.9.8
2233 series, Camellia remains excluded from compilation unless OpenSSL
2234 is configured with 'enable-camellia'.
2237 *) Disable the padding bug check when compression is in use. The padding
2238 bug check assumes the first packet is of even length, this is not
2239 necessarily true if compresssion is enabled and can result in false
2240 positives causing handshake failure. The actual bug test is ancient
2241 code so it is hoped that implementations will either have fixed it by
2242 now or any which still have the bug do not support compression.
2245 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2247 *) When applying a cipher rule check to see if string match is an explicit
2248 cipher suite and only match that one cipher suite if it is.
2251 *) Link in manifests for VC++ if needed.
2252 [Austin Ziegler <halostatue@gmail.com>]
2254 *) Update support for ECC-based TLS ciphersuites according to
2255 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2256 TLS extensions, which are supported starting with the 0.9.9
2257 branch, not in the OpenSSL 0.9.8 branch).
2260 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2261 opaque EVP_CIPHER_CTX handling.
2264 *) Fixes and enhancements to zlib compression code. We now only use
2265 "zlib1.dll" and use the default __cdecl calling convention on Win32
2266 to conform with the standards mentioned here:
2267 http://www.zlib.net/DLL_FAQ.txt
2268 Static zlib linking now works on Windows and the new --with-zlib-include
2269 --with-zlib-lib options to Configure can be used to supply the location
2270 of the headers and library. Gracefully handle case where zlib library
2274 *) Several fixes and enhancements to the OID generation code. The old code
2275 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2276 handle numbers larger than ULONG_MAX, truncated printing and had a
2277 non standard OBJ_obj2txt() behaviour.
2280 *) Add support for building of engines under engine/ as shared libraries
2281 under VC++ build system.
2284 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2285 Hopefully, we will not see any false combination of paths any more.
2288 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2290 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2291 (part of SSL_OP_ALL). This option used to disable the
2292 countermeasure against man-in-the-middle protocol-version
2293 rollback in the SSL 2.0 server implementation, which is a bad
2294 idea. (CVE-2005-2969)
2296 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2297 for Information Security, National Institute of Advanced Industrial
2298 Science and Technology [AIST], Japan)]
2300 *) Add two function to clear and return the verify parameter flags.
2303 *) Keep cipherlists sorted in the source instead of sorting them at
2304 runtime, thus removing the need for a lock.
2307 *) Avoid some small subgroup attacks in Diffie-Hellman.
2308 [Nick Mathewson and Ben Laurie]
2310 *) Add functions for well-known primes.
2313 *) Extended Windows CE support.
2314 [Satoshi Nakamura and Andy Polyakov]
2316 *) Initialize SSL_METHOD structures at compile time instead of during
2317 runtime, thus removing the need for a lock.
2320 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2321 attempting to decrypt each encrypted key in turn. Add support to
2325 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2327 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2330 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2333 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2334 key into the same file any more.
2337 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2340 *) Add -utf8 command line and config file option to 'ca'.
2341 [Stefan <stf@udoma.org]
2343 *) Removed the macro des_crypt(), as it seems to conflict with some
2344 libraries. Use DES_crypt().
2347 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2348 involves renaming the source and generated shared-libs for
2349 both. The engines will accept the corrected or legacy ids
2350 ('ncipher' and '4758_cca' respectively) when binding. NB,
2351 this only applies when building 'shared'.
2352 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2354 *) Add attribute functions to EVP_PKEY structure. Modify
2355 PKCS12_create() to recognize a CSP name attribute and
2356 use it. Make -CSP option work again in pkcs12 utility.
2359 *) Add new functionality to the bn blinding code:
2360 - automatic re-creation of the BN_BLINDING parameters after
2361 a fixed number of uses (currently 32)
2362 - add new function for parameter creation
2363 - introduce flags to control the update behaviour of the
2364 BN_BLINDING parameters
2365 - hide BN_BLINDING structure
2366 Add a second BN_BLINDING slot to the RSA structure to improve
2367 performance when a single RSA object is shared among several
2371 *) Add support for DTLS.
2372 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2374 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2375 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2378 *) Remove buggy and incompletet DH cert support from
2379 ssl/ssl_rsa.c and ssl/s3_both.c
2382 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2383 the apps/openssl applications.
2386 *) Compile clean with "-Wall -Wmissing-prototypes
2387 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2388 DEBUG_SAFESTACK must also be set.
2391 *) Change ./Configure so that certain algorithms can be disabled by default.
2392 The new counterpiece to "no-xxx" is "enable-xxx".
2394 The patented RC5 and MDC2 algorithms will now be disabled unless
2395 "enable-rc5" and "enable-mdc2", respectively, are specified.
2397 (IDEA remains enabled despite being patented. This is because IDEA
2398 is frequently required for interoperability, and there is no license
2399 fee for non-commercial use. As before, "no-idea" can be used to
2400 avoid this algorithm.)
2404 *) Add processing of proxy certificates (see RFC 3820). This work was
2405 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2406 EGEE (Enabling Grids for E-science in Europe).
2409 *) RC4 performance overhaul on modern architectures/implementations, such
2410 as Intel P4, IA-64 and AMD64.
2413 *) New utility extract-section.pl. This can be used specify an alternative
2414 section number in a pod file instead of having to treat each file as
2415 a separate case in Makefile. This can be done by adding two lines to the
2418 =for comment openssl_section:XXX
2420 The blank line is mandatory.
2424 *) New arguments -certform, -keyform and -pass for s_client and s_server
2425 to allow alternative format key and certificate files and passphrase
2429 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2430 update associated structures and add various utility functions.
2432 Add new policy related verify parameters, include policy checking in
2433 standard verify code. Enhance 'smime' application with extra parameters
2434 to support policy checking and print out.
2437 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2438 Nehemiah processors. These extensions support AES encryption in hardware
2439 as well as RNG (though RNG support is currently disabled).
2440 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2442 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2445 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2446 [Andy Polyakov and a number of other people]
2448 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2449 implementation contributed by IBM.
2450 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2452 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2453 exponent rather than 'unsigned long'. There is a corresponding change to
2454 the new 'rsa_keygen' element of the RSA_METHOD structure.
2455 [Jelte Jansen, Geoff Thorpe]
2457 *) Functionality for creating the initial serial number file is now
2458 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2460 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2461 number file to 1, which is bound to cause problems. To avoid
2462 the problems while respecting compatibility between different 0.9.7
2463 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2464 CA.pl for serial number initialization. With the new release 0.9.8,
2465 we can fix the problem directly in the 'ca' utility.)
2468 *) Reduced header interdepencies by declaring more opaque objects in
2469 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2470 give fewer recursive includes, which could break lazy source code - so
2471 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2472 developers should define this symbol when building and using openssl to
2473 ensure they track the recommended behaviour, interfaces, [etc], but
2474 backwards-compatible behaviour prevails when this isn't defined.
2477 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2480 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2481 This will generate a random key of the appropriate length based on the
2482 cipher context. The EVP_CIPHER can provide its own random key generation
2483 routine to support keys of a specific form. This is used in the des and
2484 3des routines to generate a key of the correct parity. Update S/MIME
2485 code to use new functions and hence generate correct parity DES keys.
2486 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2487 valid (weak or incorrect parity).
2490 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2491 as looking them up. This is useful when the verified structure may contain
2492 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2493 present unless the new PKCS7_NO_CRL flag is asserted.
2496 *) Extend ASN1 oid configuration module. It now additionally accepts the
2499 shortName = some long name, 1.2.3.4
2502 *) Reimplemented the BN_CTX implementation. There is now no more static
2503 limitation on the number of variables it can handle nor the depth of the
2504 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2505 information can now expand as required, and rather than having a single
2506 static array of bignums, BN_CTX now uses a linked-list of such arrays
2507 allowing it to expand on demand whilst maintaining the usefulness of
2508 BN_CTX's "bundling".
2511 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2512 to allow all RSA operations to function using a single BN_CTX.
2515 *) Preliminary support for certificate policy evaluation and checking. This
2516 is initially intended to pass the tests outlined in "Conformance Testing
2517 of Relying Party Client Certificate Path Processing Logic" v1.07.
2520 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2521 remained unused and not that useful. A variety of other little bignum
2522 tweaks and fixes have also been made continuing on from the audit (see
2526 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2527 associated ASN1, EVP and SSL functions and old ASN1 macros.
2530 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2531 and this should never fail. So the return value from the use of
2532 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2533 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2536 *) BN_CTX_get() should return zero-valued bignums, providing the same
2537 initialised value as BN_new().
2538 [Geoff Thorpe, suggested by Ulf Möller]
2540 *) Support for inhibitAnyPolicy certificate extension.
2543 *) An audit of the BIGNUM code is underway, for which debugging code is
2544 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2545 is considered valid when processing BIGNUMs, and causes execution to
2546 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2547 further steps are taken to deliberately pollute unused data in BIGNUM
2548 structures to try and expose faulty code further on. For now, openssl will
2549 (in its default mode of operation) continue to tolerate the inconsistent
2550 forms that it has tolerated in the past, but authors and packagers should
2551 consider trying openssl and their own applications when compiled with
2552 these debugging symbols defined. It will help highlight potential bugs in
2553 their own code, and will improve the test coverage for OpenSSL itself. At
2554 some point, these tighter rules will become openssl's default to improve
2555 maintainability, though the assert()s and other overheads will remain only
2556 in debugging configurations. See bn.h for more details.
2557 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2559 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2560 that can only be obtained through BN_CTX_new() (which implicitly
2561 initialises it). The presence of this function only made it possible
2562 to overwrite an existing structure (and cause memory leaks).
2565 *) Because of the callback-based approach for implementing LHASH as a
2566 template type, lh_insert() adds opaque objects to hash-tables and
2567 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2568 to clean up those corresponding objects before destroying the hash table
2569 (and losing the object pointers). So some over-zealous constifications in
2570 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2571 objects as "const" and the lh_doall[_arg] callback wrappers are not
2572 prototyped to have "const" restrictions on the object pointers they are
2573 given (and so aren't required to cast them away any more).
2576 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2577 (speed) prefers to use its own implementation. The two implementations
2578 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2579 its object type properly exposed (MS_TM) instead of casting to/from "char
2580 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2581 aren't necessarily the greatest nomenclatures - but this is what was used
2582 internally to the implementation so I've used that for now.
2585 *) Ensure that deprecated functions do not get compiled when
2586 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2587 the self-tests were still using deprecated key-generation functions so
2588 these have been updated also.
2591 *) Reorganise PKCS#7 code to separate the digest location functionality
2592 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2593 New function PKCS7_set_digest() to set the digest type for PKCS#7
2594 digestedData type. Add additional code to correctly generate the
2595 digestedData type and add support for this type in PKCS7 initialization
2599 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2600 structure of type "other".
2603 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2604 sure the loop does correctly stop and breaking ("division by zero")
2605 modulus operations are not performed. The (pre-generated) prime
2606 table crypto/bn/bn_prime.h was already correct, but it could not be
2607 re-generated on some platforms because of the "division by zero"
2608 situation in the script.
2609 [Ralf S. Engelschall]
2611 *) Update support for ECC-based TLS ciphersuites according to
2612 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2613 SHA-1 now is only used for "small" curves (where the
2614 representation of a field element takes up to 24 bytes); for
2615 larger curves, the field element resulting from ECDH is directly
2616 used as premaster secret.
2617 [Douglas Stebila (Sun Microsystems Laboratories)]
2619 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2620 curve secp160r1 to the tests.
2621 [Douglas Stebila (Sun Microsystems Laboratories)]
2623 *) Add the possibility to load symbols globally with DSO.
2624 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2626 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2627 control of the error stack.
2630 *) Add support for STORE in ENGINE.
2633 *) Add the STORE type. The intention is to provide a common interface
2634 to certificate and key stores, be they simple file-based stores, or
2635 HSM-type store, or LDAP stores, or...
2636 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2639 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2640 pass a list of arguments to any function as well as provide a way
2641 for a function to pass data back to the caller.
2644 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2645 works like BUF_strdup() but can be used to duplicate a portion of
2646 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2650 *) Add the function sk_find_ex() which works like sk_find(), but will
2651 return an index to an element even if an exact match couldn't be
2652 found. The index is guaranteed to point at the element where the
2653 searched-for key would be inserted to preserve sorting order.
2656 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2657 takes an extra flags argument for optional functionality. Currently,
2658 the following flags are defined:
2660 OBJ_BSEARCH_VALUE_ON_NOMATCH
2661 This one gets OBJ_bsearch_ex() to return a pointer to the first
2662 element where the comparing function returns a negative or zero
2665 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2666 This one gets OBJ_bsearch_ex() to return a pointer to the first
2667 element where the comparing function returns zero. This is useful
2668 if there are more than one element where the comparing function
2672 *) Make it possible to create self-signed certificates with 'openssl ca'
2673 in such a way that the self-signed certificate becomes part of the
2674 CA database and uses the same mechanisms for serial number generation
2675 as all other certificate signing. The new flag '-selfsign' enables
2676 this functionality. Adapt CA.sh and CA.pl.in.
2679 *) Add functionality to check the public key of a certificate request
2680 against a given private. This is useful to check that a certificate
2681 request can be signed by that key (self-signing).
2684 *) Make it possible to have multiple active certificates with the same
2685 subject in the CA index file. This is done only if the keyword
2686 'unique_subject' is set to 'no' in the main CA section (default
2687 if 'CA_default') of the configuration file. The value is saved
2688 with the database itself in a separate index attribute file,
2689 named like the index file with '.attr' appended to the name.
2692 *) Generate muti valued AVAs using '+' notation in config files for
2696 *) Support for nameConstraints certificate extension.
2699 *) Support for policyConstraints certificate extension.
2702 *) Support for policyMappings certificate extension.
2705 *) Make sure the default DSA_METHOD implementation only uses its
2706 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2707 and change its own handlers to be NULL so as to remove unnecessary
2708 indirection. This lets alternative implementations fallback to the
2709 default implementation more easily.
2712 *) Support for directoryName in GeneralName related extensions
2716 *) Make it possible to link applications using Makefile.shared.
2717 Make that possible even when linking against static libraries!
2720 *) Support for single pass processing for S/MIME signing. This now
2721 means that S/MIME signing can be done from a pipe, in addition
2722 cleartext signing (multipart/signed type) is effectively streaming
2723 and the signed data does not need to be all held in memory.
2725 This is done with a new flag PKCS7_STREAM. When this flag is set
2726 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2727 is done after the data is output (and digests calculated) in
2728 SMIME_write_PKCS7().
2731 *) Add full support for -rpath/-R, both in shared libraries and
2732 applications, at least on the platforms where it's known how
2736 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2737 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2738 will now compute a table of multiples of the generator that
2739 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2740 faster (notably in the case of a single point multiplication,
2741 scalar * generator).
2742 [Nils Larsch, Bodo Moeller]
2744 *) IPv6 support for certificate extensions. The various extensions
2745 which use the IP:a.b.c.d can now take IPv6 addresses using the
2746 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2750 *) Added an ENGINE that implements RSA by performing private key
2751 exponentiations with the GMP library. The conversions to and from
2752 GMP's mpz_t format aren't optimised nor are any montgomery forms
2753 cached, and on x86 it appears OpenSSL's own performance has caught up.
2754 However there are likely to be other architectures where GMP could
2755 provide a boost. This ENGINE is not built in by default, but it can be
2756 specified at Configure time and should be accompanied by the necessary
2757 linker additions, eg;
2758 ./config -DOPENSSL_USE_GMP -lgmp
2761 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2762 testing availability of engines with "-t" - the old behaviour is
2763 produced by increasing the feature's verbosity with "-tt".
2766 *) ECDSA routines: under certain error conditions uninitialized BN objects
2767 could be freed. Solution: make sure initialization is performed early
2768 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2772 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2773 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2774 software implementations. For DSA and DH, parameter generation can
2775 also be overriden by providing the appropriate method callbacks.
2778 *) Change the "progress" mechanism used in key-generation and
2779 primality testing to functions that take a new BN_GENCB pointer in
2780 place of callback/argument pairs. The new API functions have "_ex"
2781 postfixes and the older functions are reimplemented as wrappers for
2782 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2783 declarations of the old functions to help (graceful) attempts to
2784 migrate to the new functions. Also, the new key-generation API
2785 functions operate on a caller-supplied key-structure and return
2786 success/failure rather than returning a key or NULL - this is to
2787 help make "keygen" another member function of RSA_METHOD etc.
2789 Example for using the new callback interface:
2791 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2795 BN_GENCB_set(&my_cb, my_callback, my_arg);
2797 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2798 /* For the meaning of a, b in calls to my_callback(), see the
2799 * documentation of the function that calls the callback.
2800 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2801 * my_callback should return 1 if it wants BN_is_prime_ex()
2802 * to continue, or 0 to stop.
2807 *) Change the ZLIB compression method to be stateful, and make it
2808 available to TLS with the number defined in
2809 draft-ietf-tls-compression-04.txt.
2812 *) Add the ASN.1 structures and functions for CertificatePair, which
2813 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2815 CertificatePair ::= SEQUENCE {
2816 forward [0] Certificate OPTIONAL,
2817 reverse [1] Certificate OPTIONAL,
2818 -- at least one of the pair shall be present -- }
2820 Also implement the PEM functions to read and write certificate
2821 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2823 This needed to be defined, mostly for the sake of the LDAP
2824 attribute crossCertificatePair, but may prove useful elsewhere as
2828 *) Make it possible to inhibit symlinking of shared libraries in
2829 Makefile.shared, for Cygwin's sake.
2832 *) Extend the BIGNUM API by creating a function
2833 void BN_set_negative(BIGNUM *a, int neg);
2834 and a macro that behave like
2835 int BN_is_negative(const BIGNUM *a);
2837 to avoid the need to access 'a->neg' directly in applications.
2840 *) Implement fast modular reduction for pseudo-Mersenne primes
2841 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2842 EC_GROUP_new_curve_GFp() will now automatically use this
2844 [Nils Larsch <nla@trustcenter.de>]
2846 *) Add new lock type (CRYPTO_LOCK_BN).
2849 *) Change the ENGINE framework to automatically load engines
2850 dynamically from specific directories unless they could be
2851 found to already be built in or loaded. Move all the
2852 current engines except for the cryptodev one to a new
2854 The engines in engines/ are built as shared libraries if
2855 the "shared" options was given to ./Configure or ./config.
2856 Otherwise, they are inserted in libcrypto.a.
2857 /usr/local/ssl/engines is the default directory for dynamic
2858 engines, but that can be overriden at configure time through
2859 the usual use of --prefix and/or --openssldir, and at run
2860 time with the environment variable OPENSSL_ENGINES.
2861 [Geoff Thorpe and Richard Levitte]
2863 *) Add Makefile.shared, a helper makefile to build shared
2864 libraries. Addapt Makefile.org.
2867 *) Add version info to Win32 DLLs.
2868 [Peter 'Luna' Runestig" <peter@runestig.com>]
2870 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2871 can be added using this API to created arbitrary PKCS#12
2872 files while avoiding the low level API.
2874 New options to PKCS12_create(), key or cert can be NULL and
2875 will then be omitted from the output file. The encryption
2876 algorithm NIDs can be set to -1 for no encryption, the mac
2877 iteration count can be set to 0 to omit the mac.
2879 Enhance pkcs12 utility by making the -nokeys and -nocerts
2880 options work when creating a PKCS#12 file. New option -nomac
2881 to omit the mac, NONE can be set for an encryption algorithm.
2882 New code is modified to use the enhanced PKCS12_create()
2883 instead of the low level API.
2886 *) Extend ASN1 encoder to support indefinite length constructed
2887 encoding. This can output sequences tags and octet strings in
2888 this form. Modify pk7_asn1.c to support indefinite length
2889 encoding. This is experimental and needs additional code to
2890 be useful, such as an ASN1 bio and some enhanced streaming
2893 Extend template encode functionality so that tagging is passed
2894 down to the template encoder.
2897 *) Let 'openssl req' fail if an argument to '-newkey' is not
2898 recognized instead of using RSA as a default.
2901 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2902 As these are not official, they are not included in "ALL";
2903 the "ECCdraft" ciphersuite group alias can be used to select them.
2904 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2906 *) Add ECDH engine support.
2907 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2909 *) Add ECDH in new directory crypto/ecdh/.
2910 [Douglas Stebila (Sun Microsystems Laboratories)]
2912 *) Let BN_rand_range() abort with an error after 100 iterations
2913 without success (which indicates a broken PRNG).
2916 *) Change BN_mod_sqrt() so that it verifies that the input value
2917 is really the square of the return value. (Previously,
2918 BN_mod_sqrt would show GIGO behaviour.)
2921 *) Add named elliptic curves over binary fields from X9.62, SECG,
2922 and WAP/WTLS; add OIDs that were still missing.
2924 [Sheueling Chang Shantz and Douglas Stebila
2925 (Sun Microsystems Laboratories)]
2927 *) Extend the EC library for elliptic curves over binary fields
2928 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2931 EC_GF2m_simple_method
2935 EC_GROUP_new_curve_GF2m
2936 EC_GROUP_set_curve_GF2m
2937 EC_GROUP_get_curve_GF2m
2938 EC_POINT_set_affine_coordinates_GF2m
2939 EC_POINT_get_affine_coordinates_GF2m
2940 EC_POINT_set_compressed_coordinates_GF2m
2942 Point compression for binary fields is disabled by default for
2943 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2946 As binary polynomials are represented as BIGNUMs, various members
2947 of the EC_GROUP and EC_POINT data structures can be shared
2948 between the implementations for prime fields and binary fields;
2949 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2950 are essentially identical to their ..._GFp counterparts.
2951 (For simplicity, the '..._GFp' prefix has been dropped from
2952 various internal method names.)
2954 An internal 'field_div' method (similar to 'field_mul' and
2955 'field_sqr') has been added; this is used only for binary fields.
2957 [Sheueling Chang Shantz and Douglas Stebila
2958 (Sun Microsystems Laboratories)]
2960 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2961 through methods ('mul', 'precompute_mult').
2963 The generic implementations (now internally called 'ec_wNAF_mul'
2964 and 'ec_wNAF_precomputed_mult') remain the default if these
2965 methods are undefined.
2967 [Sheueling Chang Shantz and Douglas Stebila
2968 (Sun Microsystems Laboratories)]
2970 *) New function EC_GROUP_get_degree, which is defined through
2971 EC_METHOD. For curves over prime fields, this returns the bit
2972 length of the modulus.
2974 [Sheueling Chang Shantz and Douglas Stebila
2975 (Sun Microsystems Laboratories)]
2977 *) New functions EC_GROUP_dup, EC_POINT_dup.
2978 (These simply call ..._new and ..._copy).
2980 [Sheueling Chang Shantz and Douglas Stebila
2981 (Sun Microsystems Laboratories)]
2983 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2984 Polynomials are represented as BIGNUMs (where the sign bit is not
2985 used) in the following functions [macros]:
2988 BN_GF2m_sub [= BN_GF2m_add]
2989 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2990 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2991 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2993 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2994 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2995 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2996 BN_GF2m_cmp [= BN_ucmp]
2998 (Note that only the 'mod' functions are actually for fields GF(2^m).
2999 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3001 For some functions, an the irreducible polynomial defining a
3002 field can be given as an 'unsigned int[]' with strictly
3003 decreasing elements giving the indices of those bits that are set;
3004 i.e., p[] represents the polynomial
3005 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3007 p[0] > p[1] > ... > p[k] = 0.
3008 This applies to the following functions:
3013 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3014 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3016 BN_GF2m_mod_sqrt_arr
3017 BN_GF2m_mod_solve_quad_arr
3021 Conversion can be performed by the following functions:
3026 bntest.c has additional tests for binary polynomial arithmetic.
3028 Two implementations for BN_GF2m_mod_div() are available.
3029 The default algorithm simply uses BN_GF2m_mod_inv() and
3030 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3031 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3032 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3034 [Sheueling Chang Shantz and Douglas Stebila
3035 (Sun Microsystems Laboratories)]
3037 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3038 functionality is disabled at compile-time.
3039 [Douglas Stebila <douglas.stebila@sun.com>]
3041 *) Change default behaviour of 'openssl asn1parse' so that more
3042 information is visible when viewing, e.g., a certificate:
3044 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3045 mode the content of non-printable OCTET STRINGs is output in a
3046 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3047 avoid the appearance of a printable string.
3048 [Nils Larsch <nla@trustcenter.de>]
3050 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3052 EC_GROUP_set_asn1_flag()
3053 EC_GROUP_get_asn1_flag()
3054 EC_GROUP_set_point_conversion_form()
3055 EC_GROUP_get_point_conversion_form()
3056 These control ASN1 encoding details:
3057 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3058 has been set to OPENSSL_EC_NAMED_CURVE.
3059 - Points are encoded in uncompressed form by default; options for
3060 asn1_for are as for point2oct, namely
3061 POINT_CONVERSION_COMPRESSED
3062 POINT_CONVERSION_UNCOMPRESSED
3063 POINT_CONVERSION_HYBRID
3065 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3068 EC_GROUP_get0_seed()
3069 EC_GROUP_get_seed_len()
3070 This is used only for ASN1 purposes (so far).
3071 [Nils Larsch <nla@trustcenter.de>]
3073 *) Add 'field_type' member to EC_METHOD, which holds the NID
3074 of the appropriate field type OID. The new function
3075 EC_METHOD_get_field_type() returns this value.
3076 [Nils Larsch <nla@trustcenter.de>]
3081 EC_POINT_point2hex()
3082 EC_POINT_hex2point()
3083 providing useful interfaces to EC_POINT_point2oct() and
3084 EC_POINT_oct2point().
3085 [Nils Larsch <nla@trustcenter.de>]
3087 *) Change internals of the EC library so that the functions
3088 EC_GROUP_set_generator()
3089 EC_GROUP_get_generator()
3090 EC_GROUP_get_order()
3091 EC_GROUP_get_cofactor()
3092 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3093 to methods, which would lead to unnecessary code duplication when
3094 adding different types of curves.
3095 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3097 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3098 arithmetic, and such that modified wNAFs are generated
3099 (which avoid length expansion in many cases).
3102 *) Add a function EC_GROUP_check_discriminant() (defined via
3103 EC_METHOD) that verifies that the curve discriminant is non-zero.
3105 Add a function EC_GROUP_check() that makes some sanity tests
3106 on a EC_GROUP, its generator and order. This includes
3107 EC_GROUP_check_discriminant().
3108 [Nils Larsch <nla@trustcenter.de>]
3110 *) Add ECDSA in new directory crypto/ecdsa/.
3112 Add applications 'openssl ecparam' and 'openssl ecdsa'
3113 (these are based on 'openssl dsaparam' and 'openssl dsa').
3115 ECDSA support is also included in various other files across the
3116 library. Most notably,
3117 - 'openssl req' now has a '-newkey ecdsa:file' option;
3118 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3119 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3120 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3121 them suitable for ECDSA where domain parameters must be
3122 extracted before the specific public key;
3123 - ECDSA engine support has been added.
3124 [Nils Larsch <nla@trustcenter.de>]
3126 *) Include some named elliptic curves, and add OIDs from X9.62,
3127 SECG, and WAP/WTLS. Each curve can be obtained from the new
3129 EC_GROUP_new_by_curve_name(),
3130 and the list of available named curves can be obtained with
3131 EC_get_builtin_curves().
3132 Also add a 'curve_name' member to EC_GROUP objects, which can be
3134 EC_GROUP_set_curve_name()
3135 EC_GROUP_get_curve_name()
3136 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3138 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3139 was actually never needed) and in BN_mul(). The removal in BN_mul()
3140 required a small change in bn_mul_part_recursive() and the addition
3141 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3142 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3143 bn_sub_words() and bn_add_words() except they take arrays with
3147 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3149 *) Cleanse PEM buffers before freeing them since they may contain
3151 [Benjamin Bennett <ben@psc.edu>]
3153 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3154 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3155 authentication-only ciphersuites.
3158 *) Since AES128 and AES256 share a single mask bit in the logic of
3159 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3160 kludge to work properly if AES128 is available and AES256 isn't.
3163 *) Expand security boundary to match 1.1.1 module.
3166 *) Remove redundant features: hash file source, editing of test vectors
3167 modify fipsld to use external fips_premain.c signature.
3170 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3171 run algorithm test programs.
3174 *) Make algorithm test programs more tolerant of whitespace.
3177 *) Have SSL/TLS server implementation tolerate "mismatched" record
3178 protocol version while receiving ClientHello even if the
3179 ClientHello is fragmented. (The server can't insist on the
3180 particular protocol version it has chosen before the ServerHello
3181 message has informed the client about his choice.)
3184 *) Load error codes if they are not already present instead of using a
3185 static variable. This allows them to be cleanly unloaded and reloaded.
3188 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3190 *) Introduce limits to prevent malicious keys being able to
3191 cause a denial of service. (CVE-2006-2940)
3192 [Steve Henson, Bodo Moeller]
3194 *) Fix ASN.1 parsing of certain invalid structures that can result
3195 in a denial of service. (CVE-2006-2937) [Steve Henson]
3197 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3198 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3200 *) Fix SSL client code which could crash if connecting to a
3201 malicious SSLv2 server. (CVE-2006-4343)
3202 [Tavis Ormandy and Will Drewry, Google Security Team]
3204 *) Change ciphersuite string processing so that an explicit
3205 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3206 will no longer include "AES128-SHA"), and any other similar
3207 ciphersuite (same bitmap) from *other* protocol versions (so that
3208 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3209 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3210 changes from 0.9.8b and 0.9.8d.
3213 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3215 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3216 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3218 *) Change the Unix randomness entropy gathering to use poll() when
3219 possible instead of select(), since the latter has some
3220 undesirable limitations.
3221 [Darryl Miles via Richard Levitte and Bodo Moeller]
3223 *) Disable rogue ciphersuites:
3225 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3226 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3227 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3229 The latter two were purportedly from
3230 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3233 Also deactive the remaining ciphersuites from
3234 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3235 unofficial, and the ID has long expired.
3238 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3239 dual-core machines) and other potential thread-safety issues.
3242 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3244 *) Adapt fipsld and the build system to link against the validated FIPS
3245 module in FIPS mode.
3248 *) Fixes for VC++ 2005 build under Windows.
3251 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3252 from a Windows bash shell such as MSYS. It is autodetected from the
3253 "config" script when run from a VC++ environment. Modify standard VC++
3254 build to use fipscanister.o from the GNU make build.
3257 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3259 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3260 The value now differs depending on if you build for FIPS or not.
3261 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3262 safely run with a non-FIPSed libcrypto, as it may crash because of
3263 the difference induced by this change.
3266 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3268 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3269 (part of SSL_OP_ALL). This option used to disable the
3270 countermeasure against man-in-the-middle protocol-version
3271 rollback in the SSL 2.0 server implementation, which is a bad
3272 idea. (CVE-2005-2969)
3274 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3275 for Information Security, National Institute of Advanced Industrial
3276 Science and Technology [AIST], Japan)]
3278 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3279 mainly for FIPS compliance and not fully integrated at this stage.
3282 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3283 the exponentiation using a fixed-length exponent. (Otherwise,
3284 the information leaked through timing could expose the secret key
3285 after many signatures; cf. Bleichenbacher's attack on DSA with
3289 *) Make a new fixed-window mod_exp implementation the default for
3290 RSA, DSA, and DH private-key operations so that the sequence of
3291 squares and multiplies and the memory access pattern are
3292 independent of the particular secret key. This will mitigate
3293 cache-timing and potential related attacks.
3295 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3296 and this is automatically used by BN_mod_exp_mont() if the new flag
3297 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3298 will use this BN flag for private exponents unless the flag
3299 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3300 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3302 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3304 *) Change the client implementation for SSLv23_method() and
3305 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3306 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3307 (Previously, the SSL 2.0 backwards compatible Client Hello
3308 message format would be used even with SSL_OP_NO_SSLv2.)
3311 *) Add support for smime-type MIME parameter in S/MIME messages which some
3315 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3316 a threadsafe manner. Modify rsa code to use new function and add calls
3317 to dsa and dh code (which had race conditions before).
3320 *) Include the fixed error library code in the C error file definitions
3321 instead of fixing them up at runtime. This keeps the error code
3322 structures constant.
3325 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3327 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3330 *) Fixes for newer kerberos headers. NB: the casts are needed because
3331 the 'length' field is signed on one version and unsigned on another
3332 with no (?) obvious way to tell the difference, without these VC++
3333 complains. Also the "definition" of FAR (blank) is no longer included
3334 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3335 some needed definitions.
3338 *) Undo Cygwin change.
3341 *) Added support for proxy certificates according to RFC 3820.
3342 Because they may be a security thread to unaware applications,
3343 they must be explicitely allowed in run-time. See
3344 docs/HOWTO/proxy_certificates.txt for further information.
3347 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3349 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3350 server and client random values. Previously
3351 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3352 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3354 This change has negligible security impact because:
3356 1. Server and client random values still have 24 bytes of pseudo random
3359 2. Server and client random values are sent in the clear in the initial
3362 3. The master secret is derived using the premaster secret (48 bytes in
3363 size for static RSA ciphersuites) as well as client server and random
3366 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3369 [Stephen Henson, reported by UK NISCC]
3371 *) Use Windows randomness collection on Cygwin.
3374 *) Fix hang in EGD/PRNGD query when communication socket is closed
3375 prematurely by EGD/PRNGD.
3376 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3378 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3381 *) Back-port of selected performance improvements from development
3382 branch, as well as improved support for PowerPC platforms.
3385 *) Add lots of checks for memory allocation failure, error codes to indicate
3386 failure and freeing up memory if a failure occurs.
3387 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3389 *) Add new -passin argument to dgst.
3392 *) Perform some character comparisons of different types in X509_NAME_cmp:
3393 this is needed for some certificates that reencode DNs into UTF8Strings
3394 (in violation of RFC3280) and can't or wont issue name rollover
3398 *) Make an explicit check during certificate validation to see that
3399 the CA setting in each certificate on the chain is correct. As a
3400 side effect always do the following basic checks on extensions,
3401 not just when there's an associated purpose to the check:
3403 - if there is an unhandled critical extension (unless the user
3404 has chosen to ignore this fault)
3405 - if the path length has been exceeded (if one is set at all)
3406 - that certain extensions fit the associated purpose (if one has
3410 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3412 *) Avoid a race condition when CRLs are checked in a multi threaded
3413 environment. This would happen due to the reordering of the revoked
3414 entries during signature checking and serial number lookup. Now the
3415 encoding is cached and the serial number sort performed under a lock.
3416 Add new STACK function sk_is_sorted().
3419 *) Add Delta CRL to the extension code.
3422 *) Various fixes to s3_pkt.c so alerts are sent properly.
3423 [David Holmes <d.holmes@f5.com>]
3425 *) Reduce the chances of duplicate issuer name and serial numbers (in
3426 violation of RFC3280) using the OpenSSL certificate creation utilities.
3427 This is done by creating a random 64 bit value for the initial serial
3428 number when a serial number file is created or when a self signed
3429 certificate is created using 'openssl req -x509'. The initial serial
3430 number file is created using 'openssl x509 -next_serial' in CA.pl
3431 rather than being initialized to 1.
3434 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3436 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3437 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3438 [Joe Orton, Steve Henson]
3440 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3442 [Joe Orton, Steve Henson]
3444 *) Make it possible to have multiple active certificates with the same
3445 subject in the CA index file. This is done only if the keyword
3446 'unique_subject' is set to 'no' in the main CA section (default
3447 if 'CA_default') of the configuration file. The value is saved
3448 with the database itself in a separate index attribute file,
3449 named like the index file with '.attr' appended to the name.
3452 *) X509 verify fixes. Disable broken certificate workarounds when
3453 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3454 keyUsage extension present. Don't accept CRLs with unhandled critical
3455 extensions: since verify currently doesn't process CRL extensions this
3456 rejects a CRL with *any* critical extensions. Add new verify error codes
3460 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3461 A clarification of RFC2560 will require the use of OCTET STRINGs and
3462 some implementations cannot handle the current raw format. Since OpenSSL
3463 copies and compares OCSP nonces as opaque blobs without any attempt at
3464 parsing them this should not create any compatibility issues.
3467 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3468 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3469 this HMAC (and other) operations are several times slower than OpenSSL
3473 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3474 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3476 *) Use the correct content when signing type "other".
3479 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3481 *) Fix various bugs revealed by running the NISCC test suite:
3483 Stop out of bounds reads in the ASN1 code when presented with
3484 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3486 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3488 If verify callback ignores invalid public key errors don't try to check
3489 certificate signature with the NULL public key.
3493 *) New -ignore_err option in ocsp application to stop the server
3494 exiting on the first error in a request.
3497 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3498 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3502 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3503 extra data after the compression methods not only for TLS 1.0
3504 but also for SSL 3.0 (as required by the specification).
3505 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3507 *) Change X509_certificate_type() to mark the key as exported/exportable
3508 when it's 512 *bits* long, not 512 bytes.
3511 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3512 blocks during encryption.
3515 *) Various fixes to base64 BIO and non blocking I/O. On write
3516 flushes were not handled properly if the BIO retried. On read
3517 data was not being buffered properly and had various logic bugs.
3518 This also affects blocking I/O when the data being decoded is a
3522 *) Various S/MIME bugfixes and compatibility changes:
3523 output correct application/pkcs7 MIME type if
3524 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3525 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3526 of files as .eml work). Correctly handle very long lines in MIME
3530 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3532 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3533 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3534 a protocol version number mismatch like a decryption error
3535 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3538 *) Turn on RSA blinding by default in the default implementation
3539 to avoid a timing attack. Applications that don't want it can call
3540 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3541 They would be ill-advised to do so in most cases.
3542 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3544 *) Change RSA blinding code so that it works when the PRNG is not
3545 seeded (in this case, the secret RSA exponent is abused as
3546 an unpredictable seed -- if it is not unpredictable, there
3547 is no point in blinding anyway). Make RSA blinding thread-safe
3548 by remembering the creator's thread ID in rsa->blinding and
3549 having all other threads use local one-time blinding factors
3550 (this requires more computation than sharing rsa->blinding, but
3551 avoids excessive locking; and if an RSA object is not shared
3552 between threads, blinding will still be very fast).
3555 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3556 ENGINE as defaults for all supported algorithms irrespective of
3557 the 'flags' parameter. 'flags' is now honoured, so applications
3558 should make sure they are passing it correctly.
3561 *) Target "mingw" now allows native Windows code to be generated in
3562 the Cygwin environment as well as with the MinGW compiler.
3565 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3567 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3568 via timing by performing a MAC computation even if incorrrect
3569 block cipher padding has been found. This is a countermeasure
3570 against active attacks where the attacker has to distinguish
3571 between bad padding and a MAC verification error. (CVE-2003-0078)
3573 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3574 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3575 Martin Vuagnoux (EPFL, Ilion)]
3577 *) Make the no-err option work as intended. The intention with no-err
3578 is not to have the whole error stack handling routines removed from
3579 libcrypto, it's only intended to remove all the function name and
3580 reason texts, thereby removing some of the footprint that may not
3581 be interesting if those errors aren't displayed anyway.
3583 NOTE: it's still possible for any application or module to have it's
3584 own set of error texts inserted. The routines are there, just not
3585 used by default when no-err is given.
3588 *) Add support for FreeBSD on IA64.
3589 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3591 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3592 Kerberos function mit_des_cbc_cksum(). Before this change,
3593 the value returned by DES_cbc_cksum() was like the one from
3594 mit_des_cbc_cksum(), except the bytes were swapped.
3595 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3597 *) Allow an application to disable the automatic SSL chain building.
3598 Before this a rather primitive chain build was always performed in
3599 ssl3_output_cert_chain(): an application had no way to send the
3600 correct chain if the automatic operation produced an incorrect result.
3602 Now the chain builder is disabled if either:
3604 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3606 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3608 The reasoning behind this is that an application would not want the
3609 auto chain building to take place if extra chain certificates are
3610 present and it might also want a means of sending no additional
3611 certificates (for example the chain has two certificates and the
3615 *) Add the possibility to build without the ENGINE framework.
3616 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3618 *) Under Win32 gmtime() can return NULL: check return value in
3619 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3622 *) DSA routines: under certain error conditions uninitialized BN objects
3623 could be freed. Solution: make sure initialization is performed early
3624 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3625 Nils Larsch <nla@trustcenter.de> via PR#459)
3628 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3629 checked on reconnect on the client side, therefore session resumption
3630 could still fail with a "ssl session id is different" error. This
3631 behaviour is masked when SSL_OP_ALL is used due to
3632 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3633 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3634 followup to PR #377.
3637 *) IA-32 assembler support enhancements: unified ELF targets, support
3638 for SCO/Caldera platforms, fix for Cygwin shared build.
3641 *) Add support for FreeBSD on sparc64. As a consequence, support for
3642 FreeBSD on non-x86 processors is separate from x86 processors on
3643 the config script, much like the NetBSD support.
3644 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3646 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3648 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3651 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3652 code (06) was taken as the first octet of the session ID and the last
3653 octet was ignored consequently. As a result SSLv2 client side session
3654 caching could not have worked due to the session ID mismatch between
3656 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3660 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3661 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3665 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3666 seems that in spite of existing for more than a year, many application
3667 author have done nothing to provide the necessary callbacks, which
3668 means that this particular engine will not work properly anywhere.
3669 This is a very unfortunate situation which forces us, in the name
3670 of usability, to give the hw_ncipher.c a static lock, which is part
3672 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3673 appear in 0.9.8 or later. We EXPECT application authors to have
3674 dealt properly with this when 0.9.8 is released (unless we actually
3675 make such changes in the libcrypto locking code that changes will
3676 have to be made anyway).
3679 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3680 octets have been read, EOF or an error occurs. Without this change
3681 some truncated ASN1 structures will not produce an error.
3684 *) Disable Heimdal support, since it hasn't been fully implemented.
3685 Still give the possibility to force the use of Heimdal, but with
3686 warnings and a request that patches get sent to openssl-dev.
3689 *) Add the VC-CE target, introduce the WINCE sysname, and add
3690 INSTALL.WCE and appropriate conditionals to make it build.
3691 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3693 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3694 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3695 edit numbers of the version.
3696 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3698 *) Introduce safe string copy and catenation functions
3699 (BUF_strlcpy() and BUF_strlcat()).
3700 [Ben Laurie (CHATS) and Richard Levitte]
3702 *) Avoid using fixed-size buffers for one-line DNs.
3703 [Ben Laurie (CHATS)]
3705 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3706 resizing buffers containing secrets, and use where appropriate.
3707 [Ben Laurie (CHATS)]
3709 *) Avoid using fixed size buffers for configuration file location.
3710 [Ben Laurie (CHATS)]
3712 *) Avoid filename truncation for various CA files.
3713 [Ben Laurie (CHATS)]
3715 *) Use sizeof in preference to magic numbers.
3716 [Ben Laurie (CHATS)]
3718 *) Avoid filename truncation in cert requests.
3719 [Ben Laurie (CHATS)]
3721 *) Add assertions to check for (supposedly impossible) buffer
3723 [Ben Laurie (CHATS)]
3725 *) Don't cache truncated DNS entries in the local cache (this could
3726 potentially lead to a spoofing attack).
3727 [Ben Laurie (CHATS)]
3729 *) Fix various buffers to be large enough for hex/decimal
3730 representations in a platform independent manner.
3731 [Ben Laurie (CHATS)]
3733 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3734 resizing buffers containing secrets, and use where appropriate.
3735 [Ben Laurie (CHATS)]
3737 *) Add BIO_indent() to avoid much slightly worrying code to do
3739 [Ben Laurie (CHATS)]
3741 *) Convert sprintf()/BIO_puts() to BIO_printf().
3742 [Ben Laurie (CHATS)]
3744 *) buffer_gets() could terminate with the buffer only half
3746 [Ben Laurie (CHATS)]
3748 *) Add assertions to prevent user-supplied crypto functions from
3749 overflowing internal buffers by having large block sizes, etc.
3750 [Ben Laurie (CHATS)]
3752 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3754 [Ben Laurie (CHATS)]
3756 *) Eliminate unused copy of key in RC4.
3757 [Ben Laurie (CHATS)]
3759 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3760 [Ben Laurie (CHATS)]
3762 *) Fix off-by-one error in EGD path.
3763 [Ben Laurie (CHATS)]
3765 *) If RANDFILE path is too long, ignore instead of truncating.
3766 [Ben Laurie (CHATS)]
3768 *) Eliminate unused and incorrectly sized X.509 structure
3770 [Ben Laurie (CHATS)]
3772 *) Eliminate unused and dangerous function knumber().
3773 [Ben Laurie (CHATS)]
3775 *) Eliminate unused and dangerous structure, KSSL_ERR.
3776 [Ben Laurie (CHATS)]
3778 *) Protect against overlong session ID context length in an encoded
3779 session object. Since these are local, this does not appear to be
3781 [Ben Laurie (CHATS)]
3783 *) Change from security patch (see 0.9.6e below) that did not affect
3784 the 0.9.6 release series:
3786 Remote buffer overflow in SSL3 protocol - an attacker could
3787 supply an oversized master key in Kerberos-enabled versions.
3789 [Ben Laurie (CHATS)]
3791 *) Change the SSL kerb5 codes to match RFC 2712.
3794 *) Make -nameopt work fully for req and add -reqopt switch.
3795 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3797 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3798 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3800 *) Make sure tests can be performed even if the corresponding algorithms
3801 have been removed entirely. This was also the last step to make
3802 OpenSSL compilable with DJGPP under all reasonable conditions.
3803 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3805 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3806 to allow version independent disabling of normally unselected ciphers,
3807 which may be activated as a side-effect of selecting a single cipher.
3809 (E.g., cipher list string "RSA" enables ciphersuites that are left
3810 out of "ALL" because they do not provide symmetric encryption.
3811 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3812 [Lutz Jaenicke, Bodo Moeller]
3814 *) Add appropriate support for separate platform-dependent build
3815 directories. The recommended way to make a platform-dependent
3816 build directory is the following (tested on Linux), maybe with
3819 # Place yourself outside of the OpenSSL source tree. In
3820 # this example, the environment variable OPENSSL_SOURCE
3821 # is assumed to contain the absolute OpenSSL source directory.
3822 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3823 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3824 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3825 mkdir -p `dirname $F`
3826 ln -s $OPENSSL_SOURCE/$F $F
3829 To be absolutely sure not to disturb the source tree, a "make clean"
3830 is a good thing. If it isn't successfull, don't worry about it,
3831 it probably means the source directory is very clean.
3834 *) Make sure any ENGINE control commands make local copies of string
3835 pointers passed to them whenever necessary. Otherwise it is possible
3836 the caller may have overwritten (or deallocated) the original string
3837 data when a later ENGINE operation tries to use the stored values.
3838 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3840 *) Improve diagnostics in file reading and command-line digests.
3841 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3843 *) Add AES modes CFB and OFB to the object database. Correct an
3844 error in AES-CFB decryption.
3847 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3848 allows existing EVP_CIPHER_CTX structures to be reused after
3849 calling EVP_*Final(). This behaviour is used by encryption
3850 BIOs and some applications. This has the side effect that
3851 applications must explicitly clean up cipher contexts with
3852 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3855 *) Check the values of dna and dnb in bn_mul_recursive before calling
3856 bn_mul_comba (a non zero value means the a or b arrays do not contain
3857 n2 elements) and fallback to bn_mul_normal if either is not zero.
3860 *) Fix escaping of non-ASCII characters when using the -subj option
3861 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3864 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3865 form for "surname", serialNumber has no short form.
3866 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3867 therefore remove "mail" short name for "internet 7".
3868 The OID for unique identifiers in X509 certificates is
3869 x500UniqueIdentifier, not uniqueIdentifier.
3870 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3873 *) Add an "init" command to the ENGINE config module and auto initialize
3874 ENGINEs. Without any "init" command the ENGINE will be initialized
3875 after all ctrl commands have been executed on it. If init=1 the
3876 ENGINE is initailized at that point (ctrls before that point are run
3877 on the uninitialized ENGINE and after on the initialized one). If
3878 init=0 then the ENGINE will not be iniatialized at all.
3881 *) Fix the 'app_verify_callback' interface so that the user-defined
3882 argument is actually passed to the callback: In the
3883 SSL_CTX_set_cert_verify_callback() prototype, the callback
3884 declaration has been changed from
3887 int (*cb)(X509_STORE_CTX *,void *);
3888 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3889 i=s->ctx->app_verify_callback(&ctx)
3890 has been changed into
3891 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3893 To update applications using SSL_CTX_set_cert_verify_callback(),
3894 a dummy argument can be added to their callback functions.
3895 [D. K. Smetters <smetters@parc.xerox.com>]
3897 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3898 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3900 *) Add and OPENSSL_LOAD_CONF define which will cause
3901 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3902 This allows older applications to transparently support certain
3903 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3904 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3905 load the config file and OPENSSL_add_all_algorithms_conf() which will
3906 always load it have also been added.
3909 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3910 Adjust NIDs and EVP layer.
3911 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3913 *) Config modules support in openssl utility.
3915 Most commands now load modules from the config file,
3916 though in a few (such as version) this isn't done
3917 because it couldn't be used for anything.
3919 In the case of ca and req the config file used is
3920 the same as the utility itself: that is the -config
3921 command line option can be used to specify an
3925 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3926 use "openssl_conf" if filename is NULL use default openssl config file.
3929 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3930 config section name. Add a new flag to tolerate a missing config file
3931 and move code to CONF_modules_load_file().
3934 *) Support for crypto accelerator cards from Accelerated Encryption
3935 Processing, www.aep.ie. (Use engine 'aep')
3936 The support was copied from 0.9.6c [engine] and adapted/corrected
3937 to work with the new engine framework.
3938 [AEP Inc. and Richard Levitte]
3940 *) Support for SureWare crypto accelerator cards from Baltimore
3941 Technologies. (Use engine 'sureware')
3942 The support was copied from 0.9.6c [engine] and adapted
3943 to work with the new engine framework.
3946 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3947 make the newer ENGINE framework commands for the CHIL engine work.
3948 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3950 *) Make it possible to produce shared libraries on ReliantUNIX.
3951 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3953 *) Add the configuration target debug-linux-ppro.
3954 Make 'openssl rsa' use the general key loading routines
3955 implemented in apps.c, and make those routines able to
3956 handle the key format FORMAT_NETSCAPE and the variant
3958 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3960 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3961 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3963 *) Add -keyform to rsautl, and document -engine.
3964 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3966 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3967 BIO_R_NO_SUCH_FILE error code rather than the generic
3968 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3971 *) Add new functions
3973 ERR_peek_last_error_line
3974 ERR_peek_last_error_line_data.
3975 These are similar to
3978 ERR_peek_error_line_data,
3979 but report on the latest error recorded rather than the first one
3980 still in the error queue.
3981 [Ben Laurie, Bodo Moeller]
3983 *) default_algorithms option in ENGINE config module. This allows things
3985 default_algorithms = ALL
3986 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3989 *) Prelminary ENGINE config module.
3992 *) New experimental application configuration code.
3995 *) Change the AES code to follow the same name structure as all other
3996 symmetric ciphers, and behave the same way. Move everything to
3997 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3998 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4000 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4001 [Ben Laurie and Theo de Raadt]
4003 *) Add option to output public keys in req command.
4004 [Massimiliano Pala madwolf@openca.org]
4006 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4007 (up to about 10% better than before for P-192 and P-224).
4010 *) New functions/macros
4012 SSL_CTX_set_msg_callback(ctx, cb)
4013 SSL_CTX_set_msg_callback_arg(ctx, arg)
4014 SSL_set_msg_callback(ssl, cb)
4015 SSL_set_msg_callback_arg(ssl, arg)
4017 to request calling a callback function
4019 void cb(int write_p, int version, int content_type,
4020 const void *buf, size_t len, SSL *ssl, void *arg)
4022 whenever a protocol message has been completely received
4023 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4024 protocol version according to which the SSL library interprets
4025 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4026 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4027 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4028 specification (change_cipher_spec(20), alert(21), handshake(22)).
4029 'buf' and 'len' point to the actual message, 'ssl' to the
4030 SSL object, and 'arg' is the application-defined value set by
4031 SSL[_CTX]_set_msg_callback_arg().
4033 'openssl s_client' and 'openssl s_server' have new '-msg' options
4034 to enable a callback that displays all protocol messages.
4037 *) Change the shared library support so shared libraries are built as
4038 soon as the corresponding static library is finished, and thereby get
4039 openssl and the test programs linked against the shared library.
4040 This still only happens when the keyword "shard" has been given to
4041 the configuration scripts.
4043 NOTE: shared library support is still an experimental thing, and
4044 backward binary compatibility is still not guaranteed.
4045 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4047 *) Add support for Subject Information Access extension.
4048 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4050 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4051 additional bytes when new memory had to be allocated, not just
4052 when reusing an existing buffer.
4055 *) New command line and configuration option 'utf8' for the req command.
4056 This allows field values to be specified as UTF8 strings.
4059 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4060 runs for the former and machine-readable output for the latter.
4063 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4064 of the e-mail address in the DN (i.e., it will go into a certificate
4065 extension only). The new configuration file option 'email_in_dn = no'
4066 has the same effect.
4067 [Massimiliano Pala madwolf@openca.org]
4069 *) Change all functions with names starting with des_ to be starting
4070 with DES_ instead. Add wrappers that are compatible with libdes,
4071 but are named _ossl_old_des_*. Finally, add macros that map the
4072 des_* symbols to the corresponding _ossl_old_des_* if libdes
4073 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4074 desired, the des_* symbols will be mapped to DES_*, with one
4077 Since we provide two compatibility mappings, the user needs to
4078 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4079 compatibility is desired. The default (i.e., when that macro
4080 isn't defined) is OpenSSL 0.9.6c compatibility.
4082 There are also macros that enable and disable the support of old
4083 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4084 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4085 are defined, the default will apply: to support the old des routines.
4087 In either case, one must include openssl/des.h to get the correct
4088 definitions. Do not try to just include openssl/des_old.h, that
4091 NOTE: This is a major break of an old API into a new one. Software
4092 authors are encouraged to switch to the DES_ style functions. Some
4093 time in the future, des_old.h and the libdes compatibility functions
4094 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4095 default), and then completely removed.
4098 *) Test for certificates which contain unsupported critical extensions.
4099 If such a certificate is found during a verify operation it is
4100 rejected by default: this behaviour can be overridden by either
4101 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4102 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4103 X509_supported_extension() has also been added which returns 1 if a
4104 particular extension is supported.
4107 *) Modify the behaviour of EVP cipher functions in similar way to digests
4108 to retain compatibility with existing code.
4111 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4112 compatibility with existing code. In particular the 'ctx' parameter does
4113 not have to be to be initialized before the call to EVP_DigestInit() and
4114 it is tidied up after a call to EVP_DigestFinal(). New function
4115 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4116 EVP_MD_CTX_copy() changed to not require the destination to be
4117 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4118 requires the destination to be valid.
4120 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4121 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4124 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4125 so that complete 'Handshake' protocol structures are kept in memory
4126 instead of overwriting 'msg_type' and 'length' with 'body' data.
4129 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4130 [Massimo Santin via Richard Levitte]
4132 *) Major restructuring to the underlying ENGINE code. This includes
4133 reduction of linker bloat, separation of pure "ENGINE" manipulation
4134 (initialisation, etc) from functionality dealing with implementations
4135 of specific crypto iterfaces. This change also introduces integrated
4136 support for symmetric ciphers and digest implementations - so ENGINEs
4137 can now accelerate these by providing EVP_CIPHER and EVP_MD
4138 implementations of their own. This is detailed in crypto/engine/README
4139 as it couldn't be adequately described here. However, there are a few
4140 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4141 were changed in the original introduction of ENGINE code have now
4142 reverted back - the hooking from this code to ENGINE is now a good
4143 deal more passive and at run-time, operations deal directly with
4144 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4145 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4146 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4147 they were not being used by the framework as there is no concept of a
4148 BIGNUM_METHOD and they could not be generalised to the new
4149 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4150 ENGINE_cpy() has been removed as it cannot be consistently defined in
4154 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4157 *) Change mkdef.pl to sort symbols that get the same entry number,
4158 and make sure the automatically generated functions ERR_load_*
4159 become part of libeay.num as well.
4162 *) New function SSL_renegotiate_pending(). This returns true once
4163 renegotiation has been requested (either SSL_renegotiate() call
4164 or HelloRequest/ClientHello receveived from the peer) and becomes
4165 false once a handshake has been completed.
4166 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4167 sends a HelloRequest, but does not ensure that a handshake takes
4168 place. SSL_renegotiate_pending() is useful for checking if the
4169 client has followed the request.)
4172 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4173 By default, clients may request session resumption even during
4174 renegotiation (if session ID contexts permit); with this option,
4175 session resumption is possible only in the first handshake.
4177 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4178 more bits available for options that should not be part of
4179 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4182 *) Add some demos for certificate and certificate request creation.
4185 *) Make maximum certificate chain size accepted from the peer application
4186 settable (SSL*_get/set_max_cert_list()), as proposed by
4187 "Douglas E. Engert" <deengert@anl.gov>.
4190 *) Add support for shared libraries for Unixware-7
4191 (Boyd Lynn Gerber <gerberb@zenez.com>).
4194 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4195 be done prior to destruction. Use this to unload error strings from
4196 ENGINEs that load their own error strings. NB: This adds two new API
4197 functions to "get" and "set" this destroy handler in an ENGINE.
4200 *) Alter all existing ENGINE implementations (except "openssl" and
4201 "openbsd") to dynamically instantiate their own error strings. This
4202 makes them more flexible to be built both as statically-linked ENGINEs
4203 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4204 Also, add stub code to each that makes building them as self-contained
4205 shared-libraries easier (see README.ENGINE).
4208 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4209 implementations into applications that are completely implemented in
4210 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4211 commands that can be used to configure what shared-library to load and
4212 to control aspects of the way it is handled. Also, made an update to
4213 the README.ENGINE file that brings its information up-to-date and
4214 provides some information and instructions on the "dynamic" ENGINE
4215 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4218 *) Make it possible to unload ranges of ERR strings with a new
4219 "ERR_unload_strings" function.
4222 *) Add a copy() function to EVP_MD.
4225 *) Make EVP_MD routines take a context pointer instead of just the
4226 md_data void pointer.
4229 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4230 that the digest can only process a single chunk of data
4231 (typically because it is provided by a piece of
4232 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4233 is only going to provide a single chunk of data, and hence the
4234 framework needn't accumulate the data for oneshot drivers.
4237 *) As with "ERR", make it possible to replace the underlying "ex_data"
4238 functions. This change also alters the storage and management of global
4239 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4240 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4241 index counters. The API functions that use this state have been changed
4242 to take a "class_index" rather than pointers to the class's local STACK
4243 and counter, and there is now an API function to dynamically create new
4244 classes. This centralisation allows us to (a) plug a lot of the
4245 thread-safety problems that existed, and (b) makes it possible to clean
4246 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4247 such data would previously have always leaked in application code and
4248 workarounds were in place to make the memory debugging turn a blind eye
4249 to it. Application code that doesn't use this new function will still
4250 leak as before, but their memory debugging output will announce it now
4251 rather than letting it slide.
4253 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4254 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4255 has a return value to indicate success or failure.
4258 *) Make it possible to replace the underlying "ERR" functions such that the
4259 global state (2 LHASH tables and 2 locks) is only used by the "default"
4260 implementation. This change also adds two functions to "get" and "set"
4261 the implementation prior to it being automatically set the first time
4262 any other ERR function takes place. Ie. an application can call "get",
4263 pass the return value to a module it has just loaded, and that module
4264 can call its own "set" function using that value. This means the
4265 module's "ERR" operations will use (and modify) the error state in the
4266 application and not in its own statically linked copy of OpenSSL code.
4269 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4270 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4271 the operation, and provides a more encapsulated way for external code
4272 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4273 to use these functions rather than manually incrementing the counts.
4275 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4278 *) Add EVP test program.
4281 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4284 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4285 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4286 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4287 These allow a CRL to be built without having to access X509_CRL fields
4288 directly. Modify 'ca' application to use new functions.
4291 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4292 bug workarounds. Rollback attack detection is a security feature.
4293 The problem will only arise on OpenSSL servers when TLSv1 is not
4294 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4295 Software authors not wanting to support TLSv1 will have special reasons
4296 for their choice and can explicitly enable this option.
4297 [Bodo Moeller, Lutz Jaenicke]
4299 *) Rationalise EVP so it can be extended: don't include a union of
4300 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4301 (similar to those existing for EVP_CIPHER_CTX).
4306 EVP_MD_CTX_init(&md); /* new function call */
4307 EVP_DigestInit(&md, EVP_sha1());
4308 EVP_DigestUpdate(&md, in, len);
4309 EVP_DigestFinal(&md, out, NULL);
4310 EVP_MD_CTX_cleanup(&md); /* new function call */
4314 *) Make DES key schedule conform to the usual scheme, as well as
4315 correcting its structure. This means that calls to DES functions
4316 now have to pass a pointer to a des_key_schedule instead of a
4317 plain des_key_schedule (which was actually always a pointer
4320 des_key_schedule ks;
4322 des_set_key_checked(..., &ks);
4323 des_ncbc_encrypt(..., &ks, ...);
4325 (Note that a later change renames 'des_...' into 'DES_...'.)
4328 *) Initial reduction of linker bloat: the use of some functions, such as
4329 PEM causes large amounts of unused functions to be linked in due to
4330 poor organisation. For example pem_all.c contains every PEM function
4331 which has a knock on effect of linking in large amounts of (unused)
4332 ASN1 code. Grouping together similar functions and splitting unrelated
4333 functions prevents this.
4336 *) Cleanup of EVP macros.
4339 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4340 correct _ecb suffix.
4343 *) Add initial OCSP responder support to ocsp application. The
4344 revocation information is handled using the text based index
4345 use by the ca application. The responder can either handle
4346 requests generated internally, supplied in files (for example
4347 via a CGI script) or using an internal minimal server.
4350 *) Add configuration choices to get zlib compression for TLS.
4353 *) Changes to Kerberos SSL for RFC 2712 compliance:
4354 1. Implemented real KerberosWrapper, instead of just using
4355 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4356 2. Implemented optional authenticator field of KerberosWrapper.
4358 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4359 and authenticator structs; see crypto/krb5/.
4361 Generalized Kerberos calls to support multiple Kerberos libraries.
4362 [Vern Staats <staatsvr@asc.hpc.mil>,
4363 Jeffrey Altman <jaltman@columbia.edu>
4364 via Richard Levitte]
4366 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4367 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4368 values for each of the key sizes rather than having just
4369 parameters (and 'speed' generating keys each time).
4372 *) Speed up EVP routines.
4375 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4376 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4377 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4378 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4380 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4381 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4382 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4385 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4387 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4390 *) Added the OS2-EMX target.
4391 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4393 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4394 to support NCONF routines in extension code. New function CONF_set_nconf()
4395 to allow functions which take an NCONF to also handle the old LHASH
4396 structure: this means that the old CONF compatible routines can be
4397 retained (in particular wrt extensions) without having to duplicate the
4398 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4401 *) Enhance the general user interface with mechanisms for inner control
4402 and with possibilities to have yes/no kind of prompts.
4405 *) Change all calls to low level digest routines in the library and
4406 applications to use EVP. Add missing calls to HMAC_cleanup() and
4407 don't assume HMAC_CTX can be copied using memcpy().
4408 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4410 *) Add the possibility to control engines through control names but with
4411 arbitrary arguments instead of just a string.
4412 Change the key loaders to take a UI_METHOD instead of a callback
4413 function pointer. NOTE: this breaks binary compatibility with earlier
4414 versions of OpenSSL [engine].
4415 Adapt the nCipher code for these new conditions and add a card insertion
4419 *) Enhance the general user interface with mechanisms to better support
4420 dialog box interfaces, application-defined prompts, the possibility
4421 to use defaults (for example default passwords from somewhere else)
4422 and interrupts/cancellations.
4425 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4426 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4429 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4430 tidy up some unnecessarily weird code in 'sk_new()').
4431 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4433 *) Change the key loading routines for ENGINEs to use the same kind
4434 callback (pem_password_cb) as all other routines that need this
4438 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4439 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4440 than this minimum value is recommended.
4443 *) New random seeder for OpenVMS, using the system process statistics
4444 that are easily reachable.
4447 *) Windows apparently can't transparently handle global
4448 variables defined in DLLs. Initialisations such as:
4450 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4452 wont compile. This is used by the any applications that need to
4453 declare their own ASN1 modules. This was fixed by adding the option
4454 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4455 needed for static libraries under Win32.
4458 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4459 setting of purpose and trust fields. New X509_STORE trust and
4460 purpose functions and tidy up setting in other SSL functions.
4463 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4464 structure. These are inherited by X509_STORE_CTX when it is
4465 initialised. This allows various defaults to be set in the
4466 X509_STORE structure (such as flags for CRL checking and custom
4467 purpose or trust settings) for functions which only use X509_STORE_CTX
4468 internally such as S/MIME.
4470 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4471 trust settings if they are not set in X509_STORE. This allows X509_STORE
4472 purposes and trust (in S/MIME for example) to override any set by default.
4474 Add command line options for CRL checking to smime, s_client and s_server
4478 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4479 are set then the CRL is looked up in the X509_STORE structure and
4480 its validity and signature checked, then if the certificate is found
4481 in the CRL the verify fails with a revoked error.
4483 Various new CRL related callbacks added to X509_STORE_CTX structure.
4485 Command line options added to 'verify' application to support this.
4487 This needs some additional work, such as being able to handle multiple
4488 CRLs with different times, extension based lookup (rather than just
4489 by subject name) and ultimately more complete V2 CRL extension
4493 *) Add a general user interface API (crypto/ui/). This is designed
4494 to replace things like des_read_password and friends (backward
4495 compatibility functions using this new API are provided).
4496 The purpose is to remove prompting functions from the DES code
4497 section as well as provide for prompting through dialog boxes in
4498 a window system and the like.
4501 *) Add "ex_data" support to ENGINE so implementations can add state at a
4502 per-structure level rather than having to store it globally.
4505 *) Make it possible for ENGINE structures to be copied when retrieved by
4506 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4507 This causes the "original" ENGINE structure to act like a template,
4508 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4509 operational state can be localised to each ENGINE structure, despite the
4510 fact they all share the same "methods". New ENGINE structures returned in
4511 this case have no functional references and the return value is the single
4512 structural reference. This matches the single structural reference returned
4513 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4517 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4518 needs to match any other type at all we need to manually clear the
4522 *) Changes to the "openssl engine" utility to include;
4523 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4524 about an ENGINE's available control commands.
4525 - executing control commands from command line arguments using the
4526 '-pre' and '-post' switches. '-post' is only used if '-t' is
4527 specified and the ENGINE is successfully initialised. The syntax for
4528 the individual commands are colon-separated, for example;
4529 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4532 *) New dynamic control command support for ENGINEs. ENGINEs can now
4533 declare their own commands (numbers), names (strings), descriptions,
4534 and input types for run-time discovery by calling applications. A
4535 subset of these commands are implicitly classed as "executable"
4536 depending on their input type, and only these can be invoked through
4537 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4538 can be based on user input, config files, etc). The distinction is
4539 that "executable" commands cannot return anything other than a boolean
4540 result and can only support numeric or string input, whereas some
4541 discoverable commands may only be for direct use through
4542 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4543 pointers, or other custom uses. The "executable" commands are to
4544 support parameterisations of ENGINE behaviour that can be
4545 unambiguously defined by ENGINEs and used consistently across any
4546 OpenSSL-based application. Commands have been added to all the
4547 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4548 control over shared-library paths without source code alterations.
4551 *) Changed all ENGINE implementations to dynamically allocate their
4552 ENGINEs rather than declaring them statically. Apart from this being
4553 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4554 this also allows the implementations to compile without using the
4555 internal engine_int.h header.
4558 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4559 'const' value. Any code that should be able to modify a RAND_METHOD
4560 should already have non-const pointers to it (ie. they should only
4561 modify their own ones).
4564 *) Made a variety of little tweaks to the ENGINE code.
4565 - "atalla" and "ubsec" string definitions were moved from header files
4566 to C code. "nuron" string definitions were placed in variables
4567 rather than hard-coded - allowing parameterisation of these values
4568 later on via ctrl() commands.
4569 - Removed unused "#if 0"'d code.
4570 - Fixed engine list iteration code so it uses ENGINE_free() to release
4571 structural references.
4572 - Constified the RAND_METHOD element of ENGINE structures.
4573 - Constified various get/set functions as appropriate and added
4574 missing functions (including a catch-all ENGINE_cpy that duplicates
4575 all ENGINE values onto a new ENGINE except reference counts/state).
4576 - Removed NULL parameter checks in get/set functions. Setting a method
4577 or function to NULL is a way of cancelling out a previously set
4578 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4579 and doesn't justify the extra error symbols and code.
4580 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4581 flags from engine_int.h to engine.h.
4582 - Changed prototypes for ENGINE handler functions (init(), finish(),
4583 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4586 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4587 to the algorithm using long division. The binary algorithm can be
4588 used only if the modulus is odd. On 32-bit systems, it is faster
4589 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4590 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4591 up to 450 bits. In 64-bit environments, the binary algorithm
4592 appears to be advantageous for much longer moduli; here we use it
4593 for moduli up to 2048 bits.
4596 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4597 could not support the combine flag in choice fields.
4600 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4601 extensions from a certificate request to the certificate.
4604 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4605 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4606 file: this allows the display of the certificate about to be
4607 signed to be customised, to allow certain fields to be included
4608 or excluded and extension details. The old system didn't display
4609 multicharacter strings properly, omitted fields not in the policy
4610 and couldn't display additional details such as extensions.
4613 *) Function EC_POINTs_mul for multiple scalar multiplication
4614 of an arbitrary number of elliptic curve points
4615 \sum scalars[i]*points[i],
4616 optionally including the generator defined for the EC_GROUP:
4617 scalar*generator + \sum scalars[i]*points[i].
4619 EC_POINT_mul is a simple wrapper function for the typical case
4620 that the point list has just one item (besides the optional
4624 *) First EC_METHODs for curves over GF(p):
4626 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4627 operations and provides various method functions that can also
4628 operate with faster implementations of modular arithmetic.
4630 EC_GFp_mont_method() reuses most functions that are part of
4631 EC_GFp_simple_method, but uses Montgomery arithmetic.
4633 [Bodo Moeller; point addition and point doubling
4634 implementation directly derived from source code provided by
4635 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4637 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4638 crypto/ec/ec_lib.c):
4640 Curves are EC_GROUP objects (with an optional group generator)
4641 based on EC_METHODs that are built into the library.
4643 Points are EC_POINT objects based on EC_GROUP objects.
4645 Most of the framework would be able to handle curves over arbitrary
4646 finite fields, but as there are no obvious types for fields other
4647 than GF(p), some functions are limited to that for now.
4650 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4651 that the file contains a complete HTTP response.
4654 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4655 change the def and num file printf format specifier from "%-40sXXX"
4656 to "%-39s XXX". The latter will always guarantee a space after the
4657 field while the former will cause them to run together if the field
4658 is 40 of more characters long.
4661 *) Constify the cipher and digest 'method' functions and structures
4662 and modify related functions to take constant EVP_MD and EVP_CIPHER
4666 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4667 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4670 *) Modify EVP_Digest*() routines so they now return values. Although the
4671 internal software routines can never fail additional hardware versions
4675 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4677 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4678 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4681 ERR_R_NESTED_ASN1_ERROR
4683 ERR_R_MISSING_ASN1_EOS
4684 were 4 .. 9, conflicting with
4685 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4687 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4688 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4690 Add new error code 'ERR_R_INTERNAL_ERROR'.
4693 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4697 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4698 sets the subject name for a new request or supersedes the
4699 subject name in a given request. Formats that can be parsed are
4700 'CN=Some Name, OU=myOU, C=IT'
4702 'CN=Some Name/OU=myOU/C=IT'.
4704 Add options '-batch' and '-verbose' to 'openssl req'.
4705 [Massimiliano Pala <madwolf@hackmasters.net>]
4707 *) Introduce the possibility to access global variables through
4708 functions on platform were that's the best way to handle exporting
4709 global variables in shared libraries. To enable this functionality,
4710 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4711 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4712 is normally done by Configure or something similar).
4714 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4715 in the source file (foo.c) like this:
4717 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4718 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4720 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4721 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4723 OPENSSL_DECLARE_GLOBAL(int,foo);
4724 #define foo OPENSSL_GLOBAL_REF(foo)
4725 OPENSSL_DECLARE_GLOBAL(double,bar);
4726 #define bar OPENSSL_GLOBAL_REF(bar)
4728 The #defines are very important, and therefore so is including the
4729 header file everywhere where the defined globals are used.
4731 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4732 of ASN.1 items, but that structure is a bit different.
4734 The largest change is in util/mkdef.pl which has been enhanced with
4735 better and easier to understand logic to choose which symbols should
4736 go into the Windows .def files as well as a number of fixes and code
4737 cleanup (among others, algorithm keywords are now sorted
4738 lexicographically to avoid constant rewrites).
4741 *) In BN_div() keep a copy of the sign of 'num' before writing the
4742 result to 'rm' because if rm==num the value will be overwritten
4743 and produce the wrong result if 'num' is negative: this caused
4744 problems with BN_mod() and BN_nnmod().
4747 *) Function OCSP_request_verify(). This checks the signature on an
4748 OCSP request and verifies the signer certificate. The signer
4749 certificate is just checked for a generic purpose and OCSP request
4753 *) Add OCSP_check_validity() function to check the validity of OCSP
4754 responses. OCSP responses are prepared in real time and may only
4755 be a few seconds old. Simply checking that the current time lies
4756 between thisUpdate and nextUpdate max reject otherwise valid responses
4757 caused by either OCSP responder or client clock inaccuracy. Instead
4758 we allow thisUpdate and nextUpdate to fall within a certain period of
4759 the current time. The age of the response can also optionally be
4760 checked. Two new options -validity_period and -status_age added to
4764 *) If signature or public key algorithm is unrecognized print out its
4765 OID rather that just UNKNOWN.
4768 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4769 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4770 ID to be generated from the issuer certificate alone which can then be
4771 passed to OCSP_id_issuer_cmp().
4774 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4775 ASN1 modules to export functions returning ASN1_ITEM pointers
4776 instead of the ASN1_ITEM structures themselves. This adds several
4777 new macros which allow the underlying ASN1 function/structure to
4778 be accessed transparently. As a result code should not use ASN1_ITEM
4779 references directly (such as &X509_it) but instead use the relevant
4780 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4781 use of the new ASN1 code on platforms where exporting structures
4782 is problematical (for example in shared libraries) but exporting
4783 functions returning pointers to structures is not.
4786 *) Add support for overriding the generation of SSL/TLS session IDs.
4787 These callbacks can be registered either in an SSL_CTX or per SSL.
4788 The purpose of this is to allow applications to control, if they wish,
4789 the arbitrary values chosen for use as session IDs, particularly as it
4790 can be useful for session caching in multiple-server environments. A
4791 command-line switch for testing this (and any client code that wishes
4792 to use such a feature) has been added to "s_server".
4793 [Geoff Thorpe, Lutz Jaenicke]
4795 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4796 of the form '#if defined(...) || defined(...) || ...' and
4797 '#if !defined(...) && !defined(...) && ...'. This also avoids
4798 the growing number of special cases it was previously handling.
4801 *) Make all configuration macros available for application by making
4802 sure they are available in opensslconf.h, by giving them names starting
4803 with "OPENSSL_" to avoid conflicts with other packages and by making
4804 sure e_os2.h will cover all platform-specific cases together with
4806 Additionally, it is now possible to define configuration/platform-
4807 specific names (called "system identities"). In the C code, these
4808 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4809 macro with the name beginning with "OPENSSL_SYS_", which is determined
4810 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4814 *) New option -set_serial to 'req' and 'x509' this allows the serial
4815 number to use to be specified on the command line. Previously self
4816 signed certificates were hard coded with serial number 0 and the
4817 CA options of 'x509' had to use a serial number in a file which was
4821 *) New options to 'ca' utility to support V2 CRL entry extensions.
4822 Currently CRL reason, invalidity date and hold instruction are
4823 supported. Add new CRL extensions to V3 code and some new objects.
4826 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4827 disable standard block padding (aka PKCS#5 padding) in the EVP
4828 API, which was previously mandatory. This means that the data is
4829 not padded in any way and so the total length much be a multiple
4830 of the block size, otherwise an error occurs.
4833 *) Initial (incomplete) OCSP SSL support.
4836 *) New function OCSP_parse_url(). This splits up a URL into its host,
4837 port and path components: primarily to parse OCSP URLs. New -url
4838 option to ocsp utility.
4841 *) New nonce behavior. The return value of OCSP_check_nonce() now
4842 reflects the various checks performed. Applications can decide
4843 whether to tolerate certain situations such as an absent nonce
4844 in a response when one was present in a request: the ocsp application
4845 just prints out a warning. New function OCSP_add1_basic_nonce()
4846 this is to allow responders to include a nonce in a response even if
4847 the request is nonce-less.
4850 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4851 skipped when using openssl x509 multiple times on a single input file,
4852 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4855 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4856 set string type: to handle setting ASN1_TIME structures. Fix ca
4857 utility to correctly initialize revocation date of CRLs.
4860 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4861 the clients preferred ciphersuites and rather use its own preferences.
4862 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4863 Internet Explorer by ensuring unchanged hash method during stepup.
4864 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4867 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4868 to aes and add a new 'exist' option to print out symbols that don't
4872 *) Additional options to ocsp utility to allow flags to be set and
4873 additional certificates supplied.
4876 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4877 OCSP client a number of certificate to only verify the response
4881 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4882 handle the new API. Currently only ECB, CBC modes supported. Add new
4885 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4886 Encryption Standard (AES) Ciphersuites for Transport Layer
4887 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4888 not enabled by default and were not part of the "ALL" ciphersuite
4889 alias because they were not yet official; they could be
4890 explicitly requested by specifying the "AESdraft" ciphersuite
4891 group alias. In the final release of OpenSSL 0.9.7, the group
4892 alias is called "AES" and is part of "ALL".)
4893 [Ben Laurie, Steve Henson, Bodo Moeller]
4895 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4896 request to response.
4899 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4900 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4901 extract information from a certificate request. OCSP_response_create()
4902 creates a response and optionally adds a basic response structure.
4903 OCSP_basic_add1_status() adds a complete single response to a basic
4904 response and returns the OCSP_SINGLERESP structure just added (to allow
4905 extensions to be included for example). OCSP_basic_add1_cert() adds a
4906 certificate to a basic response and OCSP_basic_sign() signs a basic
4907 response with various flags. New helper functions ASN1_TIME_check()
4908 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4909 (converts ASN1_TIME to GeneralizedTime).
4912 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4913 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4914 structure from a certificate. X509_pubkey_digest() digests the public_key
4915 contents: this is used in various key identifiers.
4918 *) Make sk_sort() tolerate a NULL argument.
4919 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4921 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4922 passed by the function are trusted implicitly. If any of them signed the
4923 response then it is assumed to be valid and is not verified.
4926 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4927 to data. This was previously part of the PKCS7 ASN1 code. This
4928 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4929 [Steve Henson, reported by Kenneth R. Robinette
4930 <support@securenetterm.com>]
4932 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4933 routines: without these tracing memory leaks is very painful.
4934 Fix leaks in PKCS12 and PKCS7 routines.
4937 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4938 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4939 effectively meant GeneralizedTime would never be used. Now it
4940 is initialised to -1 but X509_time_adj() now has to check the value
4941 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4942 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4943 [Steve Henson, reported by Kenneth R. Robinette
4944 <support@securenetterm.com>]
4946 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4947 result in a zero length in the ASN1_INTEGER structure which was
4948 not consistent with the structure when d2i_ASN1_INTEGER() was used
4949 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4950 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4951 where it did not print out a minus for negative ASN1_INTEGER.
4954 *) Add summary printout to ocsp utility. The various functions which
4955 convert status values to strings have been renamed to:
4956 OCSP_response_status_str(), OCSP_cert_status_str() and
4957 OCSP_crl_reason_str() and are no longer static. New options
4958 to verify nonce values and to disable verification. OCSP response
4959 printout format cleaned up.
4962 *) Add additional OCSP certificate checks. These are those specified
4963 in RFC2560. This consists of two separate checks: the CA of the
4964 certificate being checked must either be the OCSP signer certificate
4965 or the issuer of the OCSP signer certificate. In the latter case the
4966 OCSP signer certificate must contain the OCSP signing extended key
4967 usage. This check is performed by attempting to match the OCSP
4968 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4969 in the OCSP_CERTID structures of the response.
4972 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4973 and related routines. This uses the standard OpenSSL certificate
4974 verify routines to perform initial checks (just CA validity) and
4975 to obtain the certificate chain. Then additional checks will be
4976 performed on the chain. Currently the root CA is checked to see
4977 if it is explicitly trusted for OCSP signing. This is used to set
4978 a root CA as a global signing root: that is any certificate that
4979 chains to that CA is an acceptable OCSP signing certificate.
4982 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4983 extensions from a separate configuration file.
4984 As when reading extensions from the main configuration file,
4985 the '-extensions ...' option may be used for specifying the
4987 [Massimiliano Pala <madwolf@comune.modena.it>]
4989 *) New OCSP utility. Allows OCSP requests to be generated or
4990 read. The request can be sent to a responder and the output
4991 parsed, outputed or printed in text form. Not complete yet:
4992 still needs to check the OCSP response validity.
4995 *) New subcommands for 'openssl ca':
4996 'openssl ca -status <serial>' prints the status of the cert with
4997 the given serial number (according to the index file).
4998 'openssl ca -updatedb' updates the expiry status of certificates
5000 [Massimiliano Pala <madwolf@comune.modena.it>]
5002 *) New '-newreq-nodes' command option to CA.pl. This is like
5003 '-newreq', but calls 'openssl req' with the '-nodes' option
5004 so that the resulting key is not encrypted.
5005 [Damien Miller <djm@mindrot.org>]
5007 *) New configuration for the GNU Hurd.
5008 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5010 *) Initial code to implement OCSP basic response verify. This
5011 is currently incomplete. Currently just finds the signer's
5012 certificate and verifies the signature on the response.
5015 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5016 value of OPENSSLDIR. This is available via the new '-d' option
5017 to 'openssl version', and is also included in 'openssl version -a'.
5020 *) Allowing defining memory allocation callbacks that will be given
5021 file name and line number information in additional arguments
5022 (a const char* and an int). The basic functionality remains, as
5023 well as the original possibility to just replace malloc(),
5024 realloc() and free() by functions that do not know about these
5025 additional arguments. To register and find out the current
5026 settings for extended allocation functions, the following
5027 functions are provided:
5029 CRYPTO_set_mem_ex_functions
5030 CRYPTO_set_locked_mem_ex_functions
5031 CRYPTO_get_mem_ex_functions
5032 CRYPTO_get_locked_mem_ex_functions
5034 These work the same way as CRYPTO_set_mem_functions and friends.
5035 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5036 extended allocation function is enabled.
5037 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5038 a conventional allocation function is enabled.
5039 [Richard Levitte, Bodo Moeller]
5041 *) Finish off removing the remaining LHASH function pointer casts.
5042 There should no longer be any prototype-casting required when using
5043 the LHASH abstraction, and any casts that remain are "bugs". See
5044 the callback types and macros at the head of lhash.h for details
5045 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5048 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5049 If /dev/[u]random devices are not available or do not return enough
5050 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5052 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5053 /etc/entropy will be queried once each in this sequence, quering stops
5054 when enough entropy was collected without querying more sockets.
5057 *) Change the Unix RAND_poll() variant to be able to poll several
5058 random devices, as specified by DEVRANDOM, until a sufficient amount
5059 of data has been collected. We spend at most 10 ms on each file
5060 (select timeout) and read in non-blocking mode. DEVRANDOM now
5061 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5062 (previously it was just the string "/dev/urandom"), so on typical
5063 platforms the 10 ms delay will never occur.
5064 Also separate out the Unix variant to its own file, rand_unix.c.
5065 For VMS, there's a currently-empty rand_vms.c.
5068 *) Move OCSP client related routines to ocsp_cl.c. These
5069 provide utility functions which an application needing
5070 to issue a request to an OCSP responder and analyse the
5071 response will typically need: as opposed to those which an
5072 OCSP responder itself would need which will be added later.
5074 OCSP_request_sign() signs an OCSP request with an API similar
5075 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5076 response. OCSP_response_get1_basic() extracts basic response
5077 from response. OCSP_resp_find_status(): finds and extracts status
5078 information from an OCSP_CERTID structure (which will be created
5079 when the request structure is built). These are built from lower
5080 level functions which work on OCSP_SINGLERESP structures but
5081 wont normally be used unless the application wishes to examine
5082 extensions in the OCSP response for example.
5084 Replace nonce routines with a pair of functions.
5085 OCSP_request_add1_nonce() adds a nonce value and optionally
5086 generates a random value. OCSP_check_nonce() checks the
5087 validity of the nonce in an OCSP response.
5090 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5091 This doesn't copy the supplied OCSP_CERTID and avoids the
5092 need to free up the newly created id. Change return type
5093 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5094 This can then be used to add extensions to the request.
5095 Deleted OCSP_request_new(), since most of its functionality
5096 is now in OCSP_REQUEST_new() (and the case insensitive name
5097 clash) apart from the ability to set the request name which
5098 will be added elsewhere.
5101 *) Update OCSP API. Remove obsolete extensions argument from
5102 various functions. Extensions are now handled using the new
5103 OCSP extension code. New simple OCSP HTTP function which
5104 can be used to send requests and parse the response.
5107 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5108 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5109 uses the special reorder version of SET OF to sort the attributes
5110 and reorder them to match the encoded order. This resolves a long
5111 standing problem: a verify on a PKCS7 structure just after signing
5112 it used to fail because the attribute order did not match the
5113 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5114 it uses the received order. This is necessary to tolerate some broken
5115 software that does not order SET OF. This is handled by encoding
5116 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5117 to produce the required SET OF.
5120 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5121 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5122 files to get correct declarations of the ASN.1 item variables.
5125 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5126 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5127 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5128 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5129 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5130 ASN1_ITEM and no wrapper functions.
5133 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5134 replace the old function pointer based I/O routines. Change most of
5135 the *_d2i_bio() and *_d2i_fp() functions to use these.
5138 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5139 lines, recognice more "algorithms" that can be deselected, and make
5140 it complain about algorithm deselection that isn't recognised.
5143 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5144 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5145 to use new functions. Add NO_ASN1_OLD which can be set to remove
5146 some old style ASN1 functions: this can be used to determine if old
5147 code will still work when these eventually go away.
5150 *) New extension functions for OCSP structures, these follow the
5151 same conventions as certificates and CRLs.
5154 *) New function X509V3_add1_i2d(). This automatically encodes and
5155 adds an extension. Its behaviour can be customised with various
5156 flags to append, replace or delete. Various wrappers added for
5157 certifcates and CRLs.
5160 *) Fix to avoid calling the underlying ASN1 print routine when
5161 an extension cannot be parsed. Correct a typo in the
5162 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5165 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5166 entries for variables.
5169 *) Add functionality to apps/openssl.c for detecting locking
5170 problems: As the program is single-threaded, all we have
5171 to do is register a locking callback using an array for
5172 storing which locks are currently held by the program.
5175 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5176 SSL_get_ex_data_X509_STORE_idx(), which is used in
5177 ssl_verify_cert_chain() and thus can be called at any time
5178 during TLS/SSL handshakes so that thread-safety is essential.
5179 Unfortunately, the ex_data design is not at all suited
5180 for multi-threaded use, so it probably should be abolished.
5183 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5184 [Broadcom, tweaked and integrated by Geoff Thorpe]
5186 *) Move common extension printing code to new function
5187 X509V3_print_extensions(). Reorganise OCSP print routines and
5188 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5191 *) New function X509_signature_print() to remove duplication in some
5195 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5196 set (this was treated exactly the same as SET OF previously). This
5197 is used to reorder the STACK representing the structure to match the
5198 encoding. This will be used to get round a problem where a PKCS7
5199 structure which was signed could not be verified because the STACK
5200 order did not reflect the encoded order.
5203 *) Reimplement the OCSP ASN1 module using the new code.
5206 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5207 for its ASN1 operations. The old style function pointers still exist
5208 for now but they will eventually go away.
5211 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5212 completely replaces the old ASN1 functionality with a table driven
5213 encoder and decoder which interprets an ASN1_ITEM structure describing
5214 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5215 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5216 has also been converted to the new form.
5219 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5220 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5221 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5222 for negative moduli.
5225 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5226 of not touching the result's sign bit.
5229 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5233 *) Changed the LHASH code to use prototypes for callbacks, and created
5234 macros to declare and implement thin (optionally static) functions
5235 that provide type-safety and avoid function pointer casting for the
5236 type-specific callbacks.
5239 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5241 [Veers Staats <staatsvr@asc.hpc.mil>,
5242 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5244 *) Reformat the FAQ so the different questions and answers can be divided
5245 in sections depending on the subject.
5248 *) Have the zlib compression code load ZLIB.DLL dynamically under
5252 *) New function BN_mod_sqrt for computing square roots modulo a prime
5253 (using the probabilistic Tonelli-Shanks algorithm unless
5254 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5255 be handled deterministically).
5256 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5258 *) Make BN_mod_inverse faster by explicitly handling small quotients
5259 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5260 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5263 *) New function BN_kronecker.
5266 *) Fix BN_gcd so that it works on negative inputs; the result is
5267 positive unless both parameters are zero.
5268 Previously something reasonably close to an infinite loop was
5269 possible because numbers could be growing instead of shrinking
5270 in the implementation of Euclid's algorithm.
5273 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5274 sign of the number in question.
5276 Fix BN_is_word(a,w) to work correctly for w == 0.
5278 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5279 because its test if the absolute value of 'a' equals 'w'.
5280 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5281 it exists mostly for use in the implementations of BN_is_zero(),
5282 BN_is_one(), and BN_is_word().
5285 *) New function BN_swap.
5288 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5289 the exponentiation functions are more likely to produce reasonable
5290 results on negative inputs.
5293 *) Change BN_mod_mul so that the result is always non-negative.
5294 Previously, it could be negative if one of the factors was negative;
5295 I don't think anyone really wanted that behaviour.
5298 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5299 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5300 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5301 and add new functions:
5310 BN_mod_lshift1_quick
5314 These functions always generate non-negative results.
5316 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5317 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5319 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5320 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5321 be reduced modulo m.
5322 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5325 The following entry accidentily appeared in the CHANGES file
5326 distributed with OpenSSL 0.9.7. The modifications described in
5327 it do *not* apply to OpenSSL 0.9.7.
5329 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5330 was actually never needed) and in BN_mul(). The removal in BN_mul()
5331 required a small change in bn_mul_part_recursive() and the addition
5332 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5333 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5334 bn_sub_words() and bn_add_words() except they take arrays with
5339 *) In 'openssl passwd', verify passwords read from the terminal
5340 unless the '-salt' option is used (which usually means that
5341 verification would just waste user's time since the resulting
5342 hash is going to be compared with some given password hash)
5343 or the new '-noverify' option is used.
5345 This is an incompatible change, but it does not affect
5346 non-interactive use of 'openssl passwd' (passwords on the command
5347 line, '-stdin' option, '-in ...' option) and thus should not
5351 *) Remove all references to RSAref, since there's no more need for it.
5354 *) Make DSO load along a path given through an environment variable
5355 (SHLIB_PATH) with shl_load().
5358 *) Constify the ENGINE code as a result of BIGNUM constification.
5359 Also constify the RSA code and most things related to it. In a
5360 few places, most notable in the depth of the ASN.1 code, ugly
5361 casts back to non-const were required (to be solved at a later
5365 *) Make it so the openssl application has all engines loaded by default.
5368 *) Constify the BIGNUM routines a little more.
5371 *) Add the following functions:
5373 ENGINE_load_cswift()
5375 ENGINE_load_atalla()
5377 ENGINE_load_builtin_engines()
5379 That way, an application can itself choose if external engines that
5380 are built-in in OpenSSL shall ever be used or not. The benefit is
5381 that applications won't have to be linked with libdl or other dso
5382 libraries unless it's really needed.
5384 Changed 'openssl engine' to load all engines on demand.
5385 Changed the engine header files to avoid the duplication of some
5386 declarations (they differed!).
5389 *) 'openssl engine' can now list capabilities.
5392 *) Better error reporting in 'openssl engine'.
5395 *) Never call load_dh_param(NULL) in s_server.
5398 *) Add engine application. It can currently list engines by name and
5399 identity, and test if they are actually available.
5402 *) Improve RPM specification file by forcing symbolic linking and making
5403 sure the installed documentation is also owned by root.root.
5404 [Damien Miller <djm@mindrot.org>]
5406 *) Give the OpenSSL applications more possibilities to make use of
5407 keys (public as well as private) handled by engines.
5410 *) Add OCSP code that comes from CertCo.
5413 *) Add VMS support for the Rijndael code.
5416 *) Added untested support for Nuron crypto accelerator.
5419 *) Add support for external cryptographic devices. This code was
5420 previously distributed separately as the "engine" branch.
5421 [Geoff Thorpe, Richard Levitte]
5423 *) Rework the filename-translation in the DSO code. It is now possible to
5424 have far greater control over how a "name" is turned into a filename
5425 depending on the operating environment and any oddities about the
5426 different shared library filenames on each system.
5429 *) Support threads on FreeBSD-elf in Configure.
5432 *) Fix for SHA1 assembly problem with MASM: it produces
5433 warnings about corrupt line number information when assembling
5434 with debugging information. This is caused by the overlapping
5436 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5439 NCONF_get_number() has no error checking at all. As a replacement,
5440 NCONF_get_number_e() is defined (_e for "error checking") and is
5441 promoted strongly. The old NCONF_get_number is kept around for
5442 binary backward compatibility.
5443 Make it possible for methods to load from something other than a BIO,
5444 by providing a function pointer that is given a name instead of a BIO.
5445 For example, this could be used to load configuration data from an
5449 *) Fix for non blocking accept BIOs. Added new I/O special reason
5450 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5451 with non blocking I/O was not possible because no retry code was
5452 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5456 *) Added the beginnings of Rijndael support.
5459 *) Fix for bug in DirectoryString mask setting. Add support for
5460 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5461 to allow certificate printing to more controllable, additional
5462 'certopt' option to 'x509' to allow new printing options to be
5466 *) Clean old EAY MD5 hack from e_os.h.
5469 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5471 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5472 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5473 [Joe Orton, Steve Henson]
5475 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5477 *) Fix additional bug revealed by the NISCC test suite:
5479 Stop bug triggering large recursion when presented with
5480 certain ASN.1 tags (CVE-2003-0851)
5483 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5485 *) Fix various bugs revealed by running the NISCC test suite:
5487 Stop out of bounds reads in the ASN1 code when presented with
5488 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5490 If verify callback ignores invalid public key errors don't try to check
5491 certificate signature with the NULL public key.
5495 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5496 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5500 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5501 extra data after the compression methods not only for TLS 1.0
5502 but also for SSL 3.0 (as required by the specification).
5503 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5505 *) Change X509_certificate_type() to mark the key as exported/exportable
5506 when it's 512 *bits* long, not 512 bytes.
5509 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5511 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5512 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5513 a protocol version number mismatch like a decryption error
5514 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5517 *) Turn on RSA blinding by default in the default implementation
5518 to avoid a timing attack. Applications that don't want it can call
5519 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5520 They would be ill-advised to do so in most cases.
5521 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5523 *) Change RSA blinding code so that it works when the PRNG is not
5524 seeded (in this case, the secret RSA exponent is abused as
5525 an unpredictable seed -- if it is not unpredictable, there
5526 is no point in blinding anyway). Make RSA blinding thread-safe
5527 by remembering the creator's thread ID in rsa->blinding and
5528 having all other threads use local one-time blinding factors
5529 (this requires more computation than sharing rsa->blinding, but
5530 avoids excessive locking; and if an RSA object is not shared
5531 between threads, blinding will still be very fast).
5534 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5536 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5537 via timing by performing a MAC computation even if incorrrect
5538 block cipher padding has been found. This is a countermeasure
5539 against active attacks where the attacker has to distinguish
5540 between bad padding and a MAC verification error. (CVE-2003-0078)
5542 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5543 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5544 Martin Vuagnoux (EPFL, Ilion)]
5546 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5548 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5549 memory from it's contents. This is done with a counter that will
5550 place alternating values in each byte. This can be used to solve
5551 two issues: 1) the removal of calls to memset() by highly optimizing
5552 compilers, and 2) cleansing with other values than 0, since those can
5553 be read through on certain media, for example a swap space on disk.
5556 *) Bugfix: client side session caching did not work with external caching,
5557 because the session->cipher setting was not restored when reloading
5558 from the external cache. This problem was masked, when
5559 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5560 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5563 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5564 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5565 [Zeev Lieber <zeev-l@yahoo.com>]
5567 *) Undo an undocumented change introduced in 0.9.6e which caused
5568 repeated calls to OpenSSL_add_all_ciphers() and
5569 OpenSSL_add_all_digests() to be ignored, even after calling
5573 *) Change the default configuration reader to deal with last line not
5574 being properly terminated.
5577 *) Change X509_NAME_cmp() so it applies the special rules on handling
5578 DN values that are of type PrintableString, as well as RDNs of type
5579 emailAddress where the value has the type ia5String.
5580 [stefank@valicert.com via Richard Levitte]
5582 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5583 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5584 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5585 the bitwise-OR of the two for use by the majority of applications
5586 wanting this behaviour, and update the docs. The documented
5587 behaviour and actual behaviour were inconsistent and had been
5588 changing anyway, so this is more a bug-fix than a behavioural
5590 [Geoff Thorpe, diagnosed by Nadav Har'El]
5592 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5593 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5596 *) Fix initialization code race conditions in
5597 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5598 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5599 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5600 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5601 ssl2_get_cipher_by_char(),
5602 ssl3_get_cipher_by_char().
5603 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5605 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5606 the cached sessions are flushed, as the remove_cb() might use ex_data
5607 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5608 (see [openssl.org #212]).
5609 [Geoff Thorpe, Lutz Jaenicke]
5611 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5612 length, instead of the encoding length to d2i_ASN1_OBJECT.
5615 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5617 *) [In 0.9.6g-engine release:]
5618 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5619 [Lynn Gazis <lgazis@rainbow.com>]
5621 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5623 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5624 and get fix the header length calculation.
5625 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5626 Alon Kantor <alonk@checkpoint.com> (and others),
5629 *) Use proper error handling instead of 'assertions' in buffer
5630 overflow checks added in 0.9.6e. This prevents DoS (the
5631 assertions could call abort()).
5632 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5634 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5636 *) Add various sanity checks to asn1_get_length() to reject
5637 the ASN1 length bytes if they exceed sizeof(long), will appear
5638 negative or the content length exceeds the length of the
5640 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5642 *) Fix cipher selection routines: ciphers without encryption had no flags
5643 for the cipher strength set and where therefore not handled correctly
5644 by the selection routines (PR #130).
5647 *) Fix EVP_dsa_sha macro.
5651 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5652 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5653 that was added in OpenSSL 0.9.6d.
5655 As the countermeasure turned out to be incompatible with some
5656 broken SSL implementations, the new option is part of SSL_OP_ALL.
5657 SSL_OP_ALL is usually employed when compatibility with weird SSL
5658 implementations is desired (e.g. '-bugs' option to 's_client' and
5659 's_server'), so the new option is automatically set in many
5663 *) Changes in security patch:
5665 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5666 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5667 Air Force Materiel Command, USAF, under agreement number
5670 *) Add various sanity checks to asn1_get_length() to reject
5671 the ASN1 length bytes if they exceed sizeof(long), will appear
5672 negative or the content length exceeds the length of the
5673 supplied buffer. (CVE-2002-0659)
5674 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5676 *) Assertions for various potential buffer overflows, not known to
5678 [Ben Laurie (CHATS)]
5680 *) Various temporary buffers to hold ASCII versions of integers were
5681 too small for 64 bit platforms. (CVE-2002-0655)
5682 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5684 *) Remote buffer overflow in SSL3 protocol - an attacker could
5685 supply an oversized session ID to a client. (CVE-2002-0656)
5686 [Ben Laurie (CHATS)]
5688 *) Remote buffer overflow in SSL2 protocol - an attacker could
5689 supply an oversized client master key. (CVE-2002-0656)
5690 [Ben Laurie (CHATS)]
5692 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5694 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5695 encoded as NULL) with id-dsa-with-sha1.
5696 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5698 *) Check various X509_...() return values in apps/req.c.
5699 [Nils Larsch <nla@trustcenter.de>]
5701 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5702 an end-of-file condition would erronously be flagged, when the CRLF
5703 was just at the end of a processed block. The bug was discovered when
5704 processing data through a buffering memory BIO handing the data to a
5705 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5706 <ptsekov@syntrex.com> and Nedelcho Stanev.
5709 *) Implement a countermeasure against a vulnerability recently found
5710 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5711 before application data chunks to avoid the use of known IVs
5712 with data potentially chosen by the attacker.
5715 *) Fix length checks in ssl3_get_client_hello().
5718 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5719 to prevent ssl3_read_internal() from incorrectly assuming that
5720 ssl3_read_bytes() found application data while handshake
5721 processing was enabled when in fact s->s3->in_read_app_data was
5722 merely automatically cleared during the initial handshake.
5723 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5725 *) Fix object definitions for Private and Enterprise: they were not
5726 recognized in their shortname (=lowercase) representation. Extend
5727 obj_dat.pl to issue an error when using undefined keywords instead
5728 of silently ignoring the problem (Svenning Sorensen
5729 <sss@sss.dnsalias.net>).
5732 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5733 generators, i.e. generators other than 2 and 5. (Previously, the
5734 code did not properly initialise the 'add' and 'rem' values to
5735 BN_generate_prime().)
5737 In the new general case, we do not insist that 'generator' is
5738 actually a primitive root: This requirement is rather pointless;
5739 a generator of the order-q subgroup is just as good, if not
5743 *) Map new X509 verification errors to alerts. Discovered and submitted by
5744 Tom Wu <tom@arcot.com>.
5747 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5748 returning non-zero before the data has been completely received
5749 when using non-blocking I/O.
5750 [Bodo Moeller; problem pointed out by John Hughes]
5752 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5753 [Ben Laurie, Lutz Jaenicke]
5755 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5756 Yoram Zahavi <YoramZ@gilian.com>).
5759 *) Add information about CygWin 1.3 and on, and preserve proper
5760 configuration for the versions before that.
5761 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5763 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5764 check whether we deal with a copy of a session and do not delete from
5765 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5766 <izhar@checkpoint.com>.
5769 *) Do not store session data into the internal session cache, if it
5770 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5771 flag is set). Proposed by Aslam <aslam@funk.com>.
5774 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5778 *) [In 0.9.6d-engine release:]
5779 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5780 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5782 *) Add the configuration target linux-s390x.
5783 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5785 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5786 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5787 variable as an indication that a ClientHello message has been
5788 received. As the flag value will be lost between multiple
5789 invocations of ssl3_accept when using non-blocking I/O, the
5790 function may not be aware that a handshake has actually taken
5791 place, thus preventing a new session from being added to the
5794 To avoid this problem, we now set s->new_session to 2 instead of
5795 using a local variable.
5796 [Lutz Jaenicke, Bodo Moeller]
5798 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5799 if the SSL_R_LENGTH_MISMATCH error is detected.
5800 [Geoff Thorpe, Bodo Moeller]
5802 *) New 'shared_ldflag' column in Configure platform table.
5805 *) Fix EVP_CIPHER_mode macro.
5806 ["Dan S. Camper" <dan@bti.net>]
5808 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5809 type, we must throw them away by setting rr->length to 0.
5810 [D P Chang <dpc@qualys.com>]
5812 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5814 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5815 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5816 worked incorrectly for those cases where range = 10..._2 and
5817 3*range is two bits longer than range.)
5820 *) Only add signing time to PKCS7 structures if it is not already
5824 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5825 OBJ_ld_ce should be OBJ_id_ce.
5826 Also some ip-pda OIDs in crypto/objects/objects.txt were
5827 incorrect (cf. RFC 3039).
5828 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5830 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5831 returns early because it has nothing to do.
5832 [Andy Schneider <andy.schneider@bjss.co.uk>]
5834 *) [In 0.9.6c-engine release:]
5835 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5836 [Andy Schneider <andy.schneider@bjss.co.uk>]
5838 *) [In 0.9.6c-engine release:]
5839 Add support for Cryptographic Appliance's keyserver technology.
5840 (Use engine 'keyclient')
5841 [Cryptographic Appliances and Geoff Thorpe]
5843 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5844 is called via tools/c89.sh because arguments have to be
5845 rearranged (all '-L' options must appear before the first object
5847 [Richard Shapiro <rshapiro@abinitio.com>]
5849 *) [In 0.9.6c-engine release:]
5850 Add support for Broadcom crypto accelerator cards, backported
5852 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5854 *) [In 0.9.6c-engine release:]
5855 Add support for SureWare crypto accelerator cards from
5856 Baltimore Technologies. (Use engine 'sureware')
5857 [Baltimore Technologies and Mark Cox]
5859 *) [In 0.9.6c-engine release:]
5860 Add support for crypto accelerator cards from Accelerated
5861 Encryption Processing, www.aep.ie. (Use engine 'aep')
5862 [AEP Inc. and Mark Cox]
5864 *) Add a configuration entry for gcc on UnixWare.
5865 [Gary Benson <gbenson@redhat.com>]
5867 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5868 messages are stored in a single piece (fixed-length part and
5869 variable-length part combined) and fix various bugs found on the way.
5872 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5873 instead. BIO_gethostbyname() does not know what timeouts are
5874 appropriate, so entries would stay in cache even when they have
5876 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5878 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5879 faced with a pathologically small ClientHello fragment that does
5880 not contain client_version: Instead of aborting with an error,
5881 simply choose the highest available protocol version (i.e.,
5882 TLS 1.0 unless it is disabled). In practice, ClientHello
5883 messages are never sent like this, but this change gives us
5884 strictly correct behaviour at least for TLS.
5887 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5888 never resets s->method to s->ctx->method when called from within
5889 one of the SSL handshake functions.
5890 [Bodo Moeller; problem pointed out by Niko Baric]
5892 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5893 (sent using the client's version number) if client_version is
5894 smaller than the protocol version in use. Also change
5895 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5896 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5897 the client will at least see that alert.
5900 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5904 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5905 client receives HelloRequest while in a handshake.
5906 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5908 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5909 should end in 'break', not 'goto end' which circuments various
5910 cleanups done in state SSL_ST_OK. But session related stuff
5911 must be disabled for SSL_ST_OK in the case that we just sent a
5914 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5915 before just sending a HelloRequest.
5916 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5918 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5919 reveal whether illegal block cipher padding was found or a MAC
5920 verification error occured. (Neither SSLerr() codes nor alerts
5921 are directly visible to potential attackers, but the information
5922 may leak via logfiles.)
5924 Similar changes are not required for the SSL 2.0 implementation
5925 because the number of padding bytes is sent in clear for SSL 2.0,
5926 and the extra bytes are just ignored. However ssl/s2_pkt.c
5927 failed to verify that the purported number of padding bytes is in
5931 *) Add OpenUNIX-8 support including shared libraries
5932 (Boyd Lynn Gerber <gerberb@zenez.com>).
5935 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5936 'wristwatch attack' using huge encoding parameters (cf.
5937 James H. Manger's CRYPTO 2001 paper). Note that the
5938 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5939 encoding parameters and hence was not vulnerable.
5942 *) BN_sqr() bug fix.
5943 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5945 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5946 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5947 followed by modular reduction.
5948 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5950 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5951 equivalent based on BN_pseudo_rand() instead of BN_rand().
5954 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5955 This function was broken, as the check for a new client hello message
5956 to handle SGC did not allow these large messages.
5957 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5960 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5963 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5964 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5967 *) Rework the configuration and shared library support for Tru64 Unix.
5968 The configuration part makes use of modern compiler features and
5969 still retains old compiler behavior for those that run older versions
5970 of the OS. The shared library support part includes a variant that
5971 uses the RPATH feature, and is available through the special
5972 configuration target "alpha-cc-rpath", which will never be selected
5974 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5976 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5977 with the same message size as in ssl3_get_certificate_request().
5978 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5979 messages might inadvertently be reject as too long.
5980 [Petr Lampa <lampa@fee.vutbr.cz>]
5982 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5985 *) Modified SSL library such that the verify_callback that has been set
5986 specificly for an SSL object with SSL_set_verify() is actually being
5987 used. Before the change, a verify_callback set with this function was
5988 ignored and the verify_callback() set in the SSL_CTX at the time of
5989 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5990 to allow the necessary settings.
5993 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5994 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5995 done automatically (in contradiction to the requirements of the C
5996 standard). This made problems when used from OpenSSH.
5999 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6000 dh->length and always used
6002 BN_rand_range(priv_key, dh->p).
6004 BN_rand_range() is not necessary for Diffie-Hellman, and this
6005 specific range makes Diffie-Hellman unnecessarily inefficient if
6006 dh->length (recommended exponent length) is much smaller than the
6007 length of dh->p. We could use BN_rand_range() if the order of
6008 the subgroup was stored in the DH structure, but we only have
6013 BN_rand(priv_key, l, ...)
6015 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6021 RSA_eay_public_encrypt
6022 RSA_eay_private_decrypt
6023 RSA_eay_private_encrypt (signing)
6024 RSA_eay_public_decrypt (signature verification)
6026 (default implementations for RSA_public_encrypt,
6027 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6028 always reject numbers >= n.
6031 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6032 to synchronize access to 'locking_thread'. This is necessary on
6033 systems where access to 'locking_thread' (an 'unsigned long'
6034 variable) is not atomic.
6037 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6038 *before* setting the 'crypto_lock_rand' flag. The previous code had
6039 a race condition if 0 is a valid thread ID.
6040 [Travis Vitek <vitek@roguewave.com>]
6042 *) Add support for shared libraries under Irix.
6043 [Albert Chin-A-Young <china@thewrittenword.com>]
6045 *) Add configuration option to build on Linux on both big-endian and
6047 [Ralf Baechle <ralf@uni-koblenz.de>]
6049 *) Add the possibility to create shared libraries on HP-UX.
6052 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6054 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6055 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6056 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6057 PRNG state recovery was possible based on the output of
6058 one PRNG request appropriately sized to gain knowledge on
6059 'md' followed by enough consecutive 1-byte PRNG requests
6060 to traverse all of 'state'.
6062 1. When updating 'md_local' (the current thread's copy of 'md')
6063 during PRNG output generation, hash all of the previous
6064 'md_local' value, not just the half used for PRNG output.
6066 2. Make the number of bytes from 'state' included into the hash
6067 independent from the number of PRNG bytes requested.
6069 The first measure alone would be sufficient to avoid
6070 Markku-Juhani's attack. (Actually it had never occurred
6071 to me that the half of 'md_local' used for chaining was the
6072 half from which PRNG output bytes were taken -- I had always
6073 assumed that the secret half would be used.) The second
6074 measure makes sure that additional data from 'state' is never
6075 mixed into 'md_local' in small portions; this heuristically
6076 further strengthens the PRNG.
6079 *) Fix crypto/bn/asm/mips3.s.
6082 *) When only the key is given to "enc", the IV is undefined. Print out
6083 an error message in this case.
6086 *) Handle special case when X509_NAME is empty in X509 printing routines.
6089 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6090 positive and less than q.
6093 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6094 used: it isn't thread safe and the add_lock_callback should handle
6096 [Paul Rose <Paul.Rose@bridge.com>]
6098 *) Verify that incoming data obeys the block size in
6099 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6103 [Ulf Möller, Bodo Möller]
6105 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6106 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6107 when fixing the server behaviour for backwards-compatible 'client
6108 hello' messages. (Note that the attack is impractical against
6109 SSL 3.0 and TLS 1.0 anyway because length and version checking
6110 means that the probability of guessing a valid ciphertext is
6111 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6114 Before 0.9.5, the countermeasure (hide the error by generating a
6115 random 'decryption result') did not work properly because
6116 ERR_clear_error() was missing, meaning that SSL_get_error() would
6117 detect the supposedly ignored error.
6119 Both problems are now fixed.
6122 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6123 (previously it was 1024).
6126 *) Fix for compatibility mode trust settings: ignore trust settings
6127 unless some valid trust or reject settings are present.
6130 *) Fix for blowfish EVP: its a variable length cipher.
6133 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6134 parameters in DSA public key structures and return an error in the
6135 DSA routines if parameters are absent.
6138 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6139 in the current directory if neither $RANDFILE nor $HOME was set.
6140 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6141 caused some confusion to Windows users who haven't defined $HOME.
6142 Thus RAND_file_name() is changed again: e_os.h can define a
6143 DEFAULT_HOME, which will be used if $HOME is not set.
6144 For Windows, we use "C:"; on other platforms, we still require
6145 environment variables.
6147 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6148 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6149 having multiple threads call RAND_poll() concurrently.
6152 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6153 combination of a flag and a thread ID variable.
6154 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6155 flag), *other* threads can enter ssleay_add_bytes without obeying
6156 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6157 that they do not hold after the first thread unsets add_do_not_lock).
6160 *) Change bctest again: '-x' expressions are not available in all
6164 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6166 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6167 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6169 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6170 the default extension for executables, if any. Also, make the perl
6171 scripts that use symlink() to test if it really exists and use "cp"
6172 if it doesn't. All this made OpenSSL compilable and installable in
6176 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6177 If SEQUENCE is length is indefinite just set c->slen to the total
6178 amount of data available.
6179 [Steve Henson, reported by shige@FreeBSD.org]
6180 [This change does not apply to 0.9.7.]
6182 *) Change bctest to avoid here-documents inside command substitution
6183 (workaround for FreeBSD /bin/sh bug).
6184 For compatibility with Ultrix, avoid shell functions (introduced
6185 in the bctest version that searches along $PATH).
6188 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6189 with des_encrypt() defined on some operating systems, like Solaris
6193 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6194 On the Importance of Eliminating Errors in Cryptographic
6195 Computations, J. Cryptology 14 (2001) 2, 101-119,
6196 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6199 *) MIPS assembler BIGNUM division bug fix.
6202 *) Disabled incorrect Alpha assembler code.
6205 *) Fix PKCS#7 decode routines so they correctly update the length
6206 after reading an EOC for the EXPLICIT tag.
6208 [This change does not apply to 0.9.7.]
6210 *) Fix bug in PKCS#12 key generation routines. This was triggered
6211 if a 3DES key was generated with a 0 initial byte. Include
6212 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6213 (but broken) behaviour.
6216 *) Enhance bctest to search for a working bc along $PATH and print
6218 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6220 *) Fix memory leaks in err.c: free err_data string if necessary;
6221 don't write to the wrong index in ERR_set_error_data.
6224 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6228 *) Replace rdtsc with _emit statements for VC++ version 5.
6229 [Jeremy Cooper <jeremy@baymoo.org>]
6231 *) Make it possible to reuse SSLv2 sessions.
6234 *) In copy_email() check for >= 0 as a return value for
6235 X509_NAME_get_index_by_NID() since 0 is a valid index.
6236 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6238 *) Avoid coredump with unsupported or invalid public keys by checking if
6239 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6240 PKCS7_verify() fails with non detached data.
6243 *) Don't use getenv in library functions when run as setuid/setgid.
6244 New function OPENSSL_issetugid().
6247 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6248 due to incorrect handling of multi-threading:
6250 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6252 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6254 3. Count how many times MemCheck_off() has been called so that
6255 nested use can be treated correctly. This also avoids
6256 inband-signalling in the previous code (which relied on the
6257 assumption that thread ID 0 is impossible).
6260 *) Add "-rand" option also to s_client and s_server.
6263 *) Fix CPU detection on Irix 6.x.
6264 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6265 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6267 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6270 [This change does not apply to 0.9.7.]
6272 *) Use the cached encoding of an X509_NAME structure rather than
6273 copying it. This is apparently the reason for the libsafe "errors"
6274 but the code is actually correct.
6277 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6278 Bleichenbacher's DSA attack.
6279 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6280 to be set and top=0 forces the highest bit to be set; top=-1 is new
6281 and leaves the highest bit random.
6282 [Ulf Moeller, Bodo Moeller]
6284 *) In the NCONF_...-based implementations for CONF_... queries
6285 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6286 a temporary CONF structure with the data component set to NULL
6287 (which gives segmentation faults in lh_retrieve).
6288 Instead, use NULL for the CONF pointer in CONF_get_string and
6289 CONF_get_number (which may use environment variables) and directly
6290 return NULL from CONF_get_section.
6293 *) Fix potential buffer overrun for EBCDIC.
6296 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6297 keyUsage if basicConstraints absent for a CA.
6300 *) Make SMIME_write_PKCS7() write mail header values with a format that
6301 is more generally accepted (no spaces before the semicolon), since
6302 some programs can't parse those values properly otherwise. Also make
6303 sure BIO's that break lines after each write do not create invalid
6307 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6308 macros previously used would not encode an empty SEQUENCE OF
6309 and break the signature.
6311 [This change does not apply to 0.9.7.]
6313 *) Zero the premaster secret after deriving the master secret in
6317 *) Add some EVP_add_digest_alias registrations (as found in
6318 OpenSSL_add_all_digests()) to SSL_library_init()
6319 aka OpenSSL_add_ssl_algorithms(). This provides improved
6320 compatibility with peers using X.509 certificates
6321 with unconventional AlgorithmIdentifier OIDs.
6324 *) Fix for Irix with NO_ASM.
6325 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6327 *) ./config script fixes.
6328 [Ulf Moeller, Richard Levitte]
6330 *) Fix 'openssl passwd -1'.
6333 *) Change PKCS12_key_gen_asc() so it can cope with non null
6334 terminated strings whose length is passed in the passlen
6335 parameter, for example from PEM callbacks. This was done
6336 by adding an extra length parameter to asc2uni().
6337 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6339 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6340 call failed, free the DSA structure.
6343 *) Fix to uni2asc() to cope with zero length Unicode strings.
6344 These are present in some PKCS#12 files.
6347 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6348 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6349 when writing a 32767 byte record.
6350 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6352 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6353 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6355 (RSA objects have a reference count access to which is protected
6356 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6357 so they are meant to be shared between threads.)
6358 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6359 "Reddie, Steven" <Steven.Reddie@ca.com>]
6361 *) Fix a deadlock in CRYPTO_mem_leaks().
6364 *) Use better test patterns in bntest.
6367 *) rand_win.c fix for Borland C.
6370 *) BN_rshift bugfix for n == 0.
6373 *) Add a 'bctest' script that checks for some known 'bc' bugs
6374 so that 'make test' does not abort just because 'bc' is broken.
6377 *) Store verify_result within SSL_SESSION also for client side to
6378 avoid potential security hole. (Re-used sessions on the client side
6379 always resulted in verify_result==X509_V_OK, not using the original
6380 result of the server certificate verification.)
6383 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6384 SSL3_RT_APPLICATION_DATA, return 0.
6385 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6389 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6390 releases, have been re-implemented by renaming the previous
6391 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6392 and ssl3_read_internal, respectively, and adding 'peek' parameters
6393 to them. The new ssl[23]_{read,peek} functions are calls to
6394 ssl[23]_read_internal with the 'peek' flag set appropriately.
6395 A 'peek' parameter has also been added to ssl3_read_bytes, which
6396 does the actual work for ssl3_read_internal.
6399 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6400 the method-specific "init()" handler. Also clean up ex_data after
6401 calling the method-specific "finish()" handler. Previously, this was
6402 happening the other way round.
6405 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6406 The previous value, 12, was not always sufficient for BN_mod_exp().
6409 *) Make sure that shared libraries get the internal name engine with
6410 the full version number and not just 0. This should mark the
6411 shared libraries as not backward compatible. Of course, this should
6412 be changed again when we can guarantee backward binary compatibility.
6415 *) Fix typo in get_cert_by_subject() in by_dir.c
6416 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6418 *) Rework the system to generate shared libraries:
6420 - Make note of the expected extension for the shared libraries and
6421 if there is a need for symbolic links from for example libcrypto.so.0
6422 to libcrypto.so.0.9.7. There is extended info in Configure for
6425 - Make as few rebuilds of the shared libraries as possible.
6427 - Still avoid linking the OpenSSL programs with the shared libraries.
6429 - When installing, install the shared libraries separately from the
6433 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6435 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6436 and not in SSL_clear because the latter is also used by the
6437 accept/connect functions; previously, the settings made by
6438 SSL_set_read_ahead would be lost during the handshake.
6439 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6441 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6442 Previously, it would create entries for disableed algorithms no
6446 *) Added several new manual pages for SSL_* function.
6449 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6451 *) In ssl23_get_client_hello, generate an error message when faced
6452 with an initial SSL 3.0/TLS record that is too small to contain the
6453 first two bytes of the ClientHello message, i.e. client_version.
6454 (Note that this is a pathologic case that probably has never happened
6455 in real life.) The previous approach was to use the version number
6456 from the record header as a substitute; but our protocol choice
6457 should not depend on that one because it is not authenticated
6458 by the Finished messages.
6461 *) More robust randomness gathering functions for Windows.
6462 [Jeffrey Altman <jaltman@columbia.edu>]
6464 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6465 not set then we don't setup the error code for issuer check errors
6466 to avoid possibly overwriting other errors which the callback does
6467 handle. If an application does set the flag then we assume it knows
6468 what it is doing and can handle the new informational codes
6472 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6473 a general "ANY" type, as such it should be able to decode anything
6474 including tagged types. However it didn't check the class so it would
6475 wrongly interpret tagged types in the same way as their universal
6476 counterpart and unknown types were just rejected. Changed so that the
6477 tagged and unknown types are handled in the same way as a SEQUENCE:
6478 that is the encoding is stored intact. There is also a new type
6479 "V_ASN1_OTHER" which is used when the class is not universal, in this
6480 case we have no idea what the actual type is so we just lump them all
6484 *) On VMS, stdout may very well lead to a file that is written to
6485 in a record-oriented fashion. That means that every write() will
6486 write a separate record, which will be read separately by the
6487 programs trying to read from it. This can be very confusing.
6489 The solution is to put a BIO filter in the way that will buffer
6490 text until a linefeed is reached, and then write everything a
6491 line at a time, so every record written will be an actual line,
6492 not chunks of lines and not (usually doesn't happen, but I've
6493 seen it once) several lines in one record. BIO_f_linebuffer() is
6496 Currently, it's a VMS-only method, because that's where it has
6497 been tested well enough.
6500 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6501 it can return incorrect results.
6502 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6503 but it was in 0.9.6-beta[12].)
6506 *) Disable the check for content being present when verifying detached
6507 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6508 include zero length content when signing messages.
6511 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6512 BIO_ctrl (for BIO pairs).
6515 *) Add DSO method for VMS.
6518 *) Bug fix: Montgomery multiplication could produce results with the
6522 *) Add RPM specification openssl.spec and modify it to build three
6523 packages. The default package contains applications, application
6524 documentation and run-time libraries. The devel package contains
6525 include files, static libraries and function documentation. The
6526 doc package contains the contents of the doc directory. The original
6527 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6530 *) Add a large number of documentation files for many SSL routines.
6531 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6533 *) Add a configuration entry for Sony News 4.
6534 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6536 *) Don't set the two most significant bits to one when generating a
6537 random number < q in the DSA library.
6540 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6541 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6542 the underlying transport is blocking) if a handshake took place.
6543 (The default behaviour is needed by applications such as s_client
6544 and s_server that use select() to determine when to use SSL_read;
6545 but for applications that know in advance when to expect data, it
6546 just makes things more complicated.)
6549 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6553 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6554 work better on such systems.
6555 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6557 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6558 Update PKCS12_parse() so it copies the friendlyName and the
6559 keyid to the certificates aux info.
6562 *) Fix bug in PKCS7_verify() which caused an infinite loop
6563 if there was more than one signature.
6564 [Sven Uszpelkat <su@celocom.de>]
6566 *) Major change in util/mkdef.pl to include extra information
6567 about each symbol, as well as presentig variables as well
6568 as functions. This change means that there's n more need
6569 to rebuild the .num files when some algorithms are excluded.
6572 *) Allow the verify time to be set by an application,
6573 rather than always using the current time.
6576 *) Phase 2 verify code reorganisation. The certificate
6577 verify code now looks up an issuer certificate by a
6578 number of criteria: subject name, authority key id
6579 and key usage. It also verifies self signed certificates
6580 by the same criteria. The main comparison function is
6581 X509_check_issued() which performs these checks.
6583 Lot of changes were necessary in order to support this
6584 without completely rewriting the lookup code.
6586 Authority and subject key identifier are now cached.
6588 The LHASH 'certs' is X509_STORE has now been replaced
6589 by a STACK_OF(X509_OBJECT). This is mainly because an
6590 LHASH can't store or retrieve multiple objects with
6591 the same hash value.
6593 As a result various functions (which were all internal
6594 use only) have changed to handle the new X509_STORE
6595 structure. This will break anything that messed round
6596 with X509_STORE internally.
6598 The functions X509_STORE_add_cert() now checks for an
6599 exact match, rather than just subject name.
6601 The X509_STORE API doesn't directly support the retrieval
6602 of multiple certificates matching a given criteria, however
6603 this can be worked round by performing a lookup first
6604 (which will fill the cache with candidate certificates)
6605 and then examining the cache for matches. This is probably
6606 the best we can do without throwing out X509_LOOKUP
6607 entirely (maybe later...).
6609 The X509_VERIFY_CTX structure has been enhanced considerably.
6611 All certificate lookup operations now go via a get_issuer()
6612 callback. Although this currently uses an X509_STORE it
6613 can be replaced by custom lookups. This is a simple way
6614 to bypass the X509_STORE hackery necessary to make this
6615 work and makes it possible to use more efficient techniques
6616 in future. A very simple version which uses a simple
6617 STACK for its trusted certificate store is also provided
6618 using X509_STORE_CTX_trusted_stack().
6620 The verify_cb() and verify() callbacks now have equivalents
6621 in the X509_STORE_CTX structure.
6623 X509_STORE_CTX also has a 'flags' field which can be used
6624 to customise the verify behaviour.
6627 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6628 excludes S/MIME capabilities.
6631 *) When a certificate request is read in keep a copy of the
6632 original encoding of the signed data and use it when outputing
6633 again. Signatures then use the original encoding rather than
6634 a decoded, encoded version which may cause problems if the
6635 request is improperly encoded.
6638 *) For consistency with other BIO_puts implementations, call
6639 buffer_write(b, ...) directly in buffer_puts instead of calling
6642 In BIO_puts, increment b->num_write as in BIO_write.
6643 [Peter.Sylvester@EdelWeb.fr]
6645 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6646 BN_zero, we may not return a BIGNUM with an array consisting of
6650 *) Avoid calling abort() from within the library when problems are
6651 detected, except if preprocessor symbols have been defined
6652 (such as REF_CHECK, BN_DEBUG etc.).
6655 *) New openssl application 'rsautl'. This utility can be
6656 used for low level RSA operations. DER public key
6657 BIO/fp routines also added.
6660 *) New Configure entry and patches for compiling on QNX 4.
6661 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6663 *) A demo state-machine implementation was sponsored by
6664 Nuron (http://www.nuron.com/) and is now available in
6665 demos/state_machine.
6668 *) New options added to the 'dgst' utility for signature
6669 generation and verification.
6672 *) Unrecognized PKCS#7 content types are now handled via a
6673 catch all ASN1_TYPE structure. This allows unsupported
6674 types to be stored as a "blob" and an application can
6675 encode and decode it manually.
6678 *) Fix various signed/unsigned issues to make a_strex.c
6680 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6682 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6683 length if passed a buffer. ASN1_INTEGER_to_BN failed
6684 if passed a NULL BN and its argument was negative.
6685 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6687 *) Modification to PKCS#7 encoding routines to output definite
6688 length encoding. Since currently the whole structures are in
6689 memory there's not real point in using indefinite length
6690 constructed encoding. However if OpenSSL is compiled with
6691 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6694 *) Added BIO_vprintf() and BIO_vsnprintf().
6697 *) Added more prefixes to parse for in the the strings written
6698 through a logging bio, to cover all the levels that are available
6699 through syslog. The prefixes are now:
6701 PANIC, EMERG, EMR => LOG_EMERG
6702 ALERT, ALR => LOG_ALERT
6703 CRIT, CRI => LOG_CRIT
6704 ERROR, ERR => LOG_ERR
6705 WARNING, WARN, WAR => LOG_WARNING
6706 NOTICE, NOTE, NOT => LOG_NOTICE
6707 INFO, INF => LOG_INFO
6708 DEBUG, DBG => LOG_DEBUG
6710 and as before, if none of those prefixes are present at the
6711 beginning of the string, LOG_ERR is chosen.
6713 On Win32, the LOG_* levels are mapped according to this:
6715 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6716 LOG_WARNING => EVENTLOG_WARNING_TYPE
6717 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6721 *) Made it possible to reconfigure with just the configuration
6722 argument "reconf" or "reconfigure". The command line arguments
6723 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6724 and are retrieved from there when reconfiguring.
6728 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6730 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6733 *) The obj_dat.pl script was messing up the sorting of object
6734 names. The reason was that it compared the quoted version
6735 of strings as a result "OCSP" > "OCSP Signing" because
6736 " > SPACE. Changed script to store unquoted versions of
6737 names and add quotes on output. It was also omitting some
6738 names from the lookup table if they were given a default
6739 value (that is if SN is missing it is given the same
6740 value as LN and vice versa), these are now added on the
6741 grounds that if an object has a name we should be able to
6742 look it up. Finally added warning output when duplicate
6743 short or long names are found.
6746 *) Changes needed for Tandem NSK.
6747 [Scott Uroff <scott@xypro.com>]
6749 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6750 RSA_padding_check_SSLv23(), special padding was never detected
6751 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6752 version rollback attacks was not effective.
6754 In s23_clnt.c, don't use special rollback-attack detection padding
6755 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6756 client; similarly, in s23_srvr.c, don't do the rollback check if
6757 SSL 2.0 is the only protocol enabled in the server.
6760 *) Make it possible to get hexdumps of unprintable data with 'openssl
6761 asn1parse'. By implication, the functions ASN1_parse_dump() and
6762 BIO_dump_indent() are added.
6765 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6766 these print out strings and name structures based on various
6767 flags including RFC2253 support and proper handling of
6768 multibyte characters. Added options to the 'x509' utility
6769 to allow the various flags to be set.
6772 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6773 Also change the functions X509_cmp_current_time() and
6774 X509_gmtime_adj() work with an ASN1_TIME structure,
6775 this will enable certificates using GeneralizedTime in validity
6776 dates to be checked.
6779 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6780 negative public key encodings) on by default,
6781 NO_NEG_PUBKEY_BUG can be set to disable it.
6784 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6785 content octets. An i2c_ASN1_OBJECT is unnecessary because
6786 the encoding can be trivially obtained from the structure.
6789 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6790 not read locks (CRYPTO_r_[un]lock).
6793 *) A first attempt at creating official support for shared
6794 libraries through configuration. I've kept it so the
6795 default is static libraries only, and the OpenSSL programs
6796 are always statically linked for now, but there are
6797 preparations for dynamic linking in place.
6798 This has been tested on Linux and Tru64.
6801 *) Randomness polling function for Win9x, as described in:
6802 Peter Gutmann, Software Generation of Practically Strong
6806 *) Fix so PRNG is seeded in req if using an already existing
6810 *) New options to smime application. -inform and -outform
6811 allow alternative formats for the S/MIME message including
6812 PEM and DER. The -content option allows the content to be
6813 specified separately. This should allow things like Netscape
6814 form signing output easier to verify.
6817 *) Fix the ASN1 encoding of tags using the 'long form'.
6820 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6821 STRING types. These convert content octets to and from the
6822 underlying type. The actual tag and length octets are
6823 already assumed to have been read in and checked. These
6824 are needed because all other string types have virtually
6825 identical handling apart from the tag. By having versions
6826 of the ASN1 functions that just operate on content octets
6827 IMPLICIT tagging can be handled properly. It also allows
6828 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6829 and ASN1_INTEGER are identical apart from the tag.
6832 *) Change the handling of OID objects as follows:
6834 - New object identifiers are inserted in objects.txt, following
6835 the syntax given in objects.README.
6836 - objects.pl is used to process obj_mac.num and create a new
6838 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6841 This is currently kind of a hack, and the perl code in objects.pl
6842 isn't very elegant, but it works as I intended. The simplest way
6843 to check that it worked correctly is to look in obj_dat.h and
6844 check the array nid_objs and make sure the objects haven't moved
6845 around (this is important!). Additions are OK, as well as
6846 consistent name changes.
6849 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6852 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6853 The given file adds to whatever has already been seeded into the
6854 random pool through the RANDFILE configuration file option or
6855 environment variable, or the default random state file.
6858 *) mkstack.pl now sorts each macro group into lexical order.
6859 Previously the output order depended on the order the files
6860 appeared in the directory, resulting in needless rewriting
6864 *) Patches to make OpenSSL compile under Win32 again. Mostly
6865 work arounds for the VC++ problem that it treats func() as
6866 func(void). Also stripped out the parts of mkdef.pl that
6867 added extra typesafe functions: these no longer exist.
6870 *) Reorganisation of the stack code. The macros are now all
6871 collected in safestack.h . Each macro is defined in terms of
6872 a "stack macro" of the form SKM_<name>(type, a, b). The
6873 DEBUG_SAFESTACK is now handled in terms of function casts,
6874 this has the advantage of retaining type safety without the
6875 use of additional functions. If DEBUG_SAFESTACK is not defined
6876 then the non typesafe macros are used instead. Also modified the
6877 mkstack.pl script to handle the new form. Needs testing to see
6878 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6879 the default if no major problems. Similar behaviour for ASN1_SET_OF
6880 and PKCS12_STACK_OF.
6883 *) When some versions of IIS use the 'NET' form of private key the
6884 key derivation algorithm is different. Normally MD5(password) is
6885 used as a 128 bit RC4 key. In the modified case
6886 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6887 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6888 as the old Netscape_RSA functions except they have an additional
6889 'sgckey' parameter which uses the modified algorithm. Also added
6890 an -sgckey command line option to the rsa utility. Thanks to
6891 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6892 algorithm to openssl-dev.
6895 *) The evp_local.h macros were using 'c.##kname' which resulted in
6896 invalid expansion on some systems (SCO 5.0.5 for example).
6897 Corrected to 'c.kname'.
6898 [Phillip Porch <root@theporch.com>]
6900 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6901 a STACK of email addresses from a certificate or request, these look
6902 in the subject name and the subject alternative name extensions and
6903 omit any duplicate addresses.
6906 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6907 This makes DSA verification about 2 % faster.
6910 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6911 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6912 plus overhead for 1024 bit moduli).
6913 This makes exponentiations about 0.5 % faster for 1024 bit
6914 exponents (as measured by "openssl speed rsa2048").
6917 *) Rename memory handling macros to avoid conflicts with other
6919 Malloc => OPENSSL_malloc
6920 Malloc_locked => OPENSSL_malloc_locked
6921 Realloc => OPENSSL_realloc
6922 Free => OPENSSL_free
6925 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6926 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6929 *) CygWin32 support.
6930 [John Jarvie <jjarvie@newsguy.com>]
6932 *) The type-safe stack code has been rejigged. It is now only compiled
6933 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6934 by default all type-specific stack functions are "#define"d back to
6935 standard stack functions. This results in more streamlined output
6936 but retains the type-safety checking possibilities of the original
6940 *) The STACK code has been cleaned up, and certain type declarations
6941 that didn't make a lot of sense have been brought in line. This has
6942 also involved a cleanup of sorts in safestack.h to more correctly
6943 map type-safe stack functions onto their plain stack counterparts.
6944 This work has also resulted in a variety of "const"ifications of
6945 lots of the code, especially "_cmp" operations which should normally
6946 be prototyped with "const" parameters anyway.
6949 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6950 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6951 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6952 where all of 'md' is used each time the PRNG is used, but 'state'
6953 is used only indexed by a cyclic counter. As entropy may not be
6954 well distributed from the beginning, 'md' is important as a
6955 chaining variable. However, the output function chains only half
6956 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6957 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6958 in all of 'state' being rewritten, with the new values depending
6959 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6962 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6963 the handshake is continued after ssl_verify_cert_chain();
6964 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6965 can lead to 'unexplainable' connection aborts later.
6966 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6968 *) Major EVP API cipher revision.
6969 Add hooks for extra EVP features. This allows various cipher
6970 parameters to be set in the EVP interface. Support added for variable
6971 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6972 setting of RC2 and RC5 parameters.
6974 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6977 Remove lots of duplicated code from the EVP library. For example *every*
6978 cipher init() function handles the 'iv' in the same way according to the
6979 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6980 for CFB and OFB modes they zero ctx->num.
6982 New functionality allows removal of S/MIME code RC2 hack.
6984 Most of the routines have the same form and so can be declared in terms
6987 By shifting this to the top level EVP_CipherInit() it can be removed from
6988 all individual ciphers. If the cipher wants to handle IVs or keys
6989 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6992 Change lots of functions like EVP_EncryptUpdate() to now return a
6993 value: although software versions of the algorithms cannot fail
6994 any installed hardware versions can.
6997 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6998 this option is set, tolerate broken clients that send the negotiated
6999 protocol version number instead of the requested protocol version
7003 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7004 i.e. non-zero for export ciphersuites, zero otherwise.
7005 Previous versions had this flag inverted, inconsistent with
7006 rsa_tmp_cb (..._TMP_RSA_CB).
7007 [Bodo Moeller; problem reported by Amit Chopra]
7009 *) Add missing DSA library text string. Work around for some IIS
7010 key files with invalid SEQUENCE encoding.
7013 *) Add a document (doc/standards.txt) that list all kinds of standards
7014 and so on that are implemented in OpenSSL.
7017 *) Enhance c_rehash script. Old version would mishandle certificates
7018 with the same subject name hash and wouldn't handle CRLs at all.
7019 Added -fingerprint option to crl utility, to support new c_rehash
7023 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7026 *) Fix for SSL server purpose checking. Server checking was
7027 rejecting certificates which had extended key usage present
7028 but no ssl client purpose.
7029 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7031 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7032 is a little unclear about how a blank password is handled.
7033 Since the password in encoded as a BMPString with terminating
7034 double NULL a zero length password would end up as just the
7035 double NULL. However no password at all is different and is
7036 handled differently in the PKCS#12 key generation code. NS
7037 treats a blank password as zero length. MSIE treats it as no
7038 password on export: but it will try both on import. We now do
7039 the same: PKCS12_parse() tries zero length and no password if
7040 the password is set to "" or NULL (NULL is now a valid password:
7041 it wasn't before) as does the pkcs12 application.
7044 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7045 perror when PEM_read_bio_X509_REQ fails, the error message must
7046 be obtained from the error queue.
7049 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7050 it in ERR_remove_state if appropriate, and change ERR_get_state
7051 accordingly to avoid race conditions (this is necessary because
7052 thread_hash is no longer constant once set).
7055 *) Bugfix for linux-elf makefile.one.
7058 *) RSA_get_default_method() will now cause a default
7059 RSA_METHOD to be chosen if one doesn't exist already.
7060 Previously this was only set during a call to RSA_new()
7061 or RSA_new_method(NULL) meaning it was possible for
7062 RSA_get_default_method() to return NULL.
7065 *) Added native name translation to the existing DSO code
7066 that will convert (if the flag to do so is set) filenames
7067 that are sufficiently small and have no path information
7068 into a canonical native form. Eg. "blah" converted to
7069 "libblah.so" or "blah.dll" etc.
7072 *) New function ERR_error_string_n(e, buf, len) which is like
7073 ERR_error_string(e, buf), but writes at most 'len' bytes
7074 including the 0 terminator. For ERR_error_string_n, 'buf'
7076 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7078 *) CONF library reworked to become more general. A new CONF
7079 configuration file reader "class" is implemented as well as a
7080 new functions (NCONF_*, for "New CONF") to handle it. The now
7081 old CONF_* functions are still there, but are reimplemented to
7082 work in terms of the new functions. Also, a set of functions
7083 to handle the internal storage of the configuration data is
7084 provided to make it easier to write new configuration file
7085 reader "classes" (I can definitely see something reading a
7086 configuration file in XML format, for example), called _CONF_*,
7087 or "the configuration storage API"...
7089 The new configuration file reading functions are:
7091 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7092 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7094 NCONF_default, NCONF_WIN32
7096 NCONF_dump_fp, NCONF_dump_bio
7098 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7099 NCONF_new creates a new CONF object. This works in the same way
7100 as other interfaces in OpenSSL, like the BIO interface.
7101 NCONF_dump_* dump the internal storage of the configuration file,
7102 which is useful for debugging. All other functions take the same
7103 arguments as the old CONF_* functions wth the exception of the
7104 first that must be a `CONF *' instead of a `LHASH *'.
7106 To make it easer to use the new classes with the old CONF_* functions,
7107 the function CONF_set_default_method is provided.
7110 *) Add '-tls1' option to 'openssl ciphers', which was already
7111 mentioned in the documentation but had not been implemented.
7112 (This option is not yet really useful because even the additional
7113 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7116 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7117 OpenSSL-based applications) load shared libraries and bind to
7118 them in a portable way.
7119 [Geoff Thorpe, with contributions from Richard Levitte]
7121 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7123 *) Make sure _lrotl and _lrotr are only used with MSVC.
7125 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7126 (the default implementation of RAND_status).
7128 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7129 to '-clrext' (= clear extensions), as intended and documented.
7130 [Bodo Moeller; inconsistency pointed out by Michael Attili
7133 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7134 was larger than the MD block size.
7135 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7137 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7138 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7139 using the passed key: if the passed key was a private key the result
7140 of X509_print(), for example, would be to print out all the private key
7144 *) des_quad_cksum() byte order bug fix.
7145 [Ulf Möller, using the problem description in krb4-0.9.7, where
7146 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7148 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7150 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7152 *) For easily testing in shell scripts whether some command
7153 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7154 returns with exit code 0 iff no command of the given name is available.
7155 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7156 the output goes to stdout and nothing is printed to stderr.
7157 Additional arguments are always ignored.
7159 Since for each cipher there is a command of the same name,
7160 the 'no-cipher' compilation switches can be tested this way.
7162 ('openssl no-XXX' is not able to detect pseudo-commands such
7163 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7166 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7169 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7170 is set; it will be thrown away anyway because each handshake creates
7172 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7173 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7174 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7175 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7178 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7179 'Q' and 'R' lose their special meanings (quit/renegotiate).
7180 This is part of what -quiet does; unlike -quiet, -ign_eof
7181 does not suppress any output.
7184 *) Add compatibility options to the purpose and trust code. The
7185 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7186 accepts a certificate or CA, this was the previous behaviour,
7187 with all the associated security issues.
7189 X509_TRUST_COMPAT is the old trust behaviour: only and
7190 automatically trust self signed roots in certificate store. A
7191 new trust setting X509_TRUST_DEFAULT is used to specify that
7192 a purpose has no associated trust setting and it should instead
7193 use the value in the default purpose.
7196 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7197 and fix a memory leak.
7200 *) In util/mkerr.pl (which implements 'make errors'), preserve
7201 reason strings from the previous version of the .c file, as
7202 the default to have only downcase letters (and digits) in
7203 automatically generated reasons codes is not always appropriate.
7206 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7207 using strerror. Previously, ERR_reason_error_string() returned
7208 library names as reason strings for SYSerr; but SYSerr is a special
7209 case where small numbers are errno values, not library numbers.
7212 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7213 converts DSA parameters into DH parameters. (When creating parameters,
7214 DSA_generate_parameters is used.)
7217 *) Include 'length' (recommended exponent length) in C code generated
7218 by 'openssl dhparam -C'.
7221 *) The second argument to set_label in perlasm was already being used
7222 so couldn't be used as a "file scope" flag. Moved to third argument
7226 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7227 instead of RAND_bytes for encryption IVs and salts.
7230 *) Include RAND_status() into RAND_METHOD instead of implementing
7231 it only for md_rand.c Otherwise replacing the PRNG by calling
7232 RAND_set_rand_method would be impossible.
7235 *) Don't let DSA_generate_key() enter an infinite loop if the random
7236 number generation fails.
7239 *) New 'rand' application for creating pseudo-random output.
7242 *) Added configuration support for Linux/IA64
7243 [Rolf Haberrecker <rolf@suse.de>]
7245 *) Assembler module support for Mingw32.
7248 *) Shared library support for HPUX (in shlib/).
7249 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7251 *) Shared library support for Solaris gcc.
7252 [Lutz Behnke <behnke@trustcenter.de>]
7254 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7256 *) PKCS7_encrypt() was adding text MIME headers twice because they
7257 were added manually and by SMIME_crlf_copy().
7260 *) In bntest.c don't call BN_rand with zero bits argument.
7261 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7263 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7264 case was implemented. This caused BN_div_recp() to fail occasionally.
7267 *) Add an optional second argument to the set_label() in the perl
7268 assembly language builder. If this argument exists and is set
7269 to 1 it signals that the assembler should use a symbol whose
7270 scope is the entire file, not just the current function. This
7271 is needed with MASM which uses the format label:: for this scope.
7272 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7274 *) Change the ASN1 types so they are typedefs by default. Before
7275 almost all types were #define'd to ASN1_STRING which was causing
7276 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7280 *) Change names of new functions to the new get1/get0 naming
7281 convention: After 'get1', the caller owns a reference count
7282 and has to call ..._free; 'get0' returns a pointer to some
7283 data structure without incrementing reference counters.
7284 (Some of the existing 'get' functions increment a reference
7285 counter, some don't.)
7286 Similarly, 'set1' and 'add1' functions increase reference
7287 counters or duplicate objects.
7290 *) Allow for the possibility of temp RSA key generation failure:
7291 the code used to assume it always worked and crashed on failure.
7294 *) Fix potential buffer overrun problem in BIO_printf().
7295 [Ulf Möller, using public domain code by Patrick Powell; problem
7296 pointed out by David Sacerdote <das33@cornell.edu>]
7298 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7299 RAND_egd() and RAND_status(). In the command line application,
7300 the EGD socket can be specified like a seed file using RANDFILE
7304 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7305 Some CAs (e.g. Verisign) distribute certificates in this form.
7308 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7309 list to exclude them. This means that no special compilation option
7310 is needed to use anonymous DH: it just needs to be included in the
7314 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7315 EVP_MD_type. The old functionality is available in a new macro called
7316 EVP_MD_md(). Change code that uses it and update docs.
7319 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7320 where the 'void *' argument is replaced by a function pointer argument.
7321 Previously 'void *' was abused to point to functions, which works on
7322 many platforms, but is not correct. As these functions are usually
7323 called by macros defined in OpenSSL header files, most source code
7324 should work without changes.
7327 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7328 sections with information on -D... compiler switches used for
7329 compiling the library so that applications can see them. To enable
7330 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7331 must be defined. E.g.,
7332 #define OPENSSL_ALGORITHM_DEFINES
7333 #include <openssl/opensslconf.h>
7334 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7335 [Richard Levitte, Ulf and Bodo Möller]
7337 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7341 *) Change the 'other' type in certificate aux info to a STACK_OF
7342 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7343 the required ASN1 format: arbitrary types determined by an OID.
7346 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7347 argument to 'req'. This is not because the function is newer or
7348 better than others it just uses the work 'NEW' in the certificate
7349 request header lines. Some software needs this.
7352 *) Reorganise password command line arguments: now passwords can be
7353 obtained from various sources. Delete the PEM_cb function and make
7354 it the default behaviour: i.e. if the callback is NULL and the
7355 usrdata argument is not NULL interpret it as a null terminated pass
7356 phrase. If usrdata and the callback are NULL then the pass phrase
7357 is prompted for as usual.
7360 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7361 the support is automatically enabled. The resulting binaries will
7362 autodetect the card and use it if present.
7363 [Ben Laurie and Compaq Inc.]
7365 *) Work around for Netscape hang bug. This sends certificate request
7366 and server done in one record. Since this is perfectly legal in the
7367 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7368 the bugs/SSLv3 entry for more info.
7371 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7374 *) Add -rand argument to smime and pkcs12 applications and read/write
7378 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7381 *) Add command line password options to the remaining applications.
7384 *) Bug fix for BN_div_recp() for numerators with an even number of
7388 *) More tests in bntest.c, and changed test_bn output.
7391 *) ./config recognizes MacOS X now.
7394 *) Bug fix for BN_div() when the first words of num and divsor are
7395 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7398 *) Add support for various broken PKCS#8 formats, and command line
7399 options to produce them.
7402 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7403 get temporary BIGNUMs from a BN_CTX.
7406 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7410 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7411 include a #define from the old name to the new. The original intent
7412 was that statically linked binaries could for example just call
7413 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7414 link with digests. This never worked becayse SSLeay_add_all_digests()
7415 and SSLeay_add_all_ciphers() were in the same source file so calling
7416 one would link with the other. They are now in separate source files.
7419 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7422 *) Use a less unusual form of the Miller-Rabin primality test (it used
7423 a binary algorithm for exponentiation integrated into the Miller-Rabin
7424 loop, our standard modexp algorithms are faster).
7427 *) Support for the EBCDIC character set completed.
7428 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7430 *) Source code cleanups: use const where appropriate, eliminate casts,
7431 use void * instead of char * in lhash.
7434 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7435 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7436 this the server could overwrite ephemeral keys that the client
7440 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7441 using 50 iterations of the Rabin-Miller test.
7443 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7444 iterations of the Rabin-Miller test as required by the appendix
7445 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7446 As BN_is_prime_fasttest includes trial division, DSA parameter
7447 generation becomes much faster.
7449 This implies a change for the callback functions in DSA_is_prime
7450 and DSA_generate_parameters: The callback function is called once
7451 for each positive witness in the Rabin-Miller test, not just
7452 occasionally in the inner loop; and the parameters to the
7453 callback function now provide an iteration count for the outer
7454 loop rather than for the current invocation of the inner loop.
7455 DSA_generate_parameters additionally can call the callback
7456 function with an 'iteration count' of -1, meaning that a
7457 candidate has passed the trial division test (when q is generated
7458 from an application-provided seed, trial division is skipped).
7461 *) New function BN_is_prime_fasttest that optionally does trial
7462 division before starting the Rabin-Miller test and has
7463 an additional BN_CTX * argument (whereas BN_is_prime always
7464 has to allocate at least one BN_CTX).
7465 'callback(1, -1, cb_arg)' is called when a number has passed the
7466 trial division stage.
7469 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7473 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7476 *) New function BN_pseudo_rand().
7479 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7480 bignum version of BN_from_montgomery() with the working code from
7481 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7485 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7486 made it impossible to use the same SSL_SESSION data structure in
7487 SSL2 clients in multiple threads.
7490 *) The return value of RAND_load_file() no longer counts bytes obtained
7491 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7492 to seed the PRNG (previously an explicit byte count was required).
7493 [Ulf Möller, Bodo Möller]
7495 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7496 used (char *) instead of (void *) and had casts all over the place.
7499 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7502 *) Retain source code compatibility for BN_prime_checks macro:
7503 BN_is_prime(..., BN_prime_checks, ...) now uses
7504 BN_prime_checks_for_size to determine the appropriate number of
7505 Rabin-Miller iterations.
7508 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7509 DH_CHECK_P_NOT_SAFE_PRIME.
7510 (Check if this is true? OpenPGP calls them "strong".)
7513 *) Merge the functionality of "dh" and "gendh" programs into a new program
7514 "dhparam". The old programs are retained for now but will handle DH keys
7515 (instead of parameters) in future.
7518 *) Make the ciphers, s_server and s_client programs check the return values
7519 when a new cipher list is set.
7522 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7523 ciphers. Before when the 56bit ciphers were enabled the sorting was
7526 The syntax for the cipher sorting has been extended to support sorting by
7527 cipher-strength (using the strength_bits hard coded in the tables).
7528 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7530 Fix a bug in the cipher-command parser: when supplying a cipher command
7531 string with an "undefined" symbol (neither command nor alphanumeric
7532 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7533 an error is flagged.
7535 Due to the strength-sorting extension, the code of the
7536 ssl_create_cipher_list() function was completely rearranged. I hope that
7537 the readability was also increased :-)
7538 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7540 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7541 for the first serial number and places 2 in the serial number file. This
7542 avoids problems when the root CA is created with serial number zero and
7543 the first user certificate has the same issuer name and serial number
7547 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7548 the new code. Add documentation for this stuff.
7551 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7552 X509_*() to X509at_*() on the grounds that they don't handle X509
7553 structures and behave in an analagous way to the X509v3 functions:
7554 they shouldn't be called directly but wrapper functions should be used
7557 So we also now have some wrapper functions that call the X509at functions
7558 when passed certificate requests. (TO DO: similar things can be done with
7559 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7560 things. Some of these need some d2i or i2d and print functionality
7561 because they handle more complex structures.)
7564 *) Add missing #ifndefs that caused missing symbols when building libssl
7565 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7566 NO_RSA in ssl/s2*.c.
7567 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7569 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7570 has a return value which indicates the quality of the random data
7571 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7572 error queue. New function RAND_pseudo_bytes() generates output that is
7573 guaranteed to be unique but not unpredictable. RAND_add is like
7574 RAND_seed, but takes an extra argument for an entropy estimate
7575 (RAND_seed always assumes full entropy).
7578 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7579 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7580 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7581 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7582 false-positive rate of at most 2^-80 for random input.
7585 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7588 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7589 in the 0.9.5 release), this returns the chain
7590 from an X509_CTX structure with a dup of the stack and all
7591 the X509 reference counts upped: so the stack will exist
7592 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7595 Also make SSL_SESSION_print() print out the verify return
7599 *) Add manpage for the pkcs12 command. Also change the default
7600 behaviour so MAC iteration counts are used unless the new
7601 -nomaciter option is used. This improves file security and
7602 only older versions of MSIE (4.0 for example) need it.
7605 *) Honor the no-xxx Configure options when creating .DEF files.
7608 *) Add PKCS#10 attributes to field table: challengePassword,
7609 unstructuredName and unstructuredAddress. These are taken from
7610 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7611 international characters are used.
7613 More changes to X509_ATTRIBUTE code: allow the setting of types
7614 based on strings. Remove the 'loc' parameter when adding
7615 attributes because these will be a SET OF encoding which is sorted
7619 *) Initial changes to the 'req' utility to allow request generation
7620 automation. This will allow an application to just generate a template
7621 file containing all the field values and have req construct the
7624 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7625 used all over the place including certificate requests and PKCS#7
7626 structures. They are currently handled manually where necessary with
7627 some primitive wrappers for PKCS#7. The new functions behave in a
7628 manner analogous to the X509 extension functions: they allow
7629 attributes to be looked up by NID and added.
7631 Later something similar to the X509V3 code would be desirable to
7632 automatically handle the encoding, decoding and printing of the
7633 more complex types. The string types like challengePassword can
7634 be handled by the string table functions.
7636 Also modified the multi byte string table handling. Now there is
7637 a 'global mask' which masks out certain types. The table itself
7638 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7639 is useful when for example there is only one permissible type
7640 (as in countryName) and using the mask might result in no valid
7644 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7645 SSL_get_peer_finished to allow applications to obtain the latest
7646 Finished messages sent to the peer or expected from the peer,
7647 respectively. (SSL_get_peer_finished is usually the Finished message
7648 actually received from the peer, otherwise the protocol will be aborted.)
7650 As the Finished message are message digests of the complete handshake
7651 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7652 be used for external authentication procedures when the authentication
7653 provided by SSL/TLS is not desired or is not enough.
7656 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7657 the host supports BWX extension and if Compaq C is present on the
7658 $PATH. Just exploiting of the BWX extension results in 20-30%
7659 performance kick for some algorithms, e.g. DES and RC4 to mention
7660 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7664 *) Add support for MS "fast SGC". This is arguably a violation of the
7665 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7666 weak crypto and after checking the certificate is SGC a second one
7667 with strong crypto. MS SGC stops the first handshake after receiving
7668 the server certificate message and sends a second client hello. Since
7669 a server will typically do all the time consuming operations before
7670 expecting any further messages from the client (server key exchange
7671 is the most expensive) there is little difference between the two.
7673 To get OpenSSL to support MS SGC we have to permit a second client
7674 hello message after we have sent server done. In addition we have to
7675 reset the MAC if we do get this second client hello.
7678 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7679 if a DER encoded private key is RSA or DSA traditional format. Changed
7680 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7681 format DER encoded private key. Newer code should use PKCS#8 format which
7682 has the key type encoded in the ASN1 structure. Added DER private key
7683 support to pkcs8 application.
7686 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7687 ciphersuites has been selected (as required by the SSL 3/TLS 1
7688 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7689 is set, we interpret this as a request to violate the specification
7690 (the worst that can happen is a handshake failure, and 'correct'
7691 behaviour would result in a handshake failure anyway).
7694 *) In SSL_CTX_add_session, take into account that there might be multiple
7695 SSL_SESSION structures with the same session ID (e.g. when two threads
7696 concurrently obtain them from an external cache).
7697 The internal cache can handle only one SSL_SESSION with a given ID,
7698 so if there's a conflict, we now throw out the old one to achieve
7702 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7703 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7704 some routines that use cipher OIDs: some ciphers do not have OIDs
7705 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7709 *) Simplify the trust setting structure and code. Now we just have
7710 two sequences of OIDs for trusted and rejected settings. These will
7711 typically have values the same as the extended key usage extension
7712 and any application specific purposes.
7714 The trust checking code now has a default behaviour: it will just
7715 check for an object with the same NID as the passed id. Functions can
7716 be provided to override either the default behaviour or the behaviour
7717 for a given id. SSL client, server and email already have functions
7718 in place for compatibility: they check the NID and also return "trusted"
7719 if the certificate is self signed.
7722 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7723 traditional format into an EVP_PKEY structure.
7726 *) Add a password callback function PEM_cb() which either prompts for
7727 a password if usr_data is NULL or otherwise assumes it is a null
7728 terminated password. Allow passwords to be passed on command line
7729 environment or config files in a few more utilities.
7732 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7733 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7734 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7735 Update documentation.
7738 *) Support for ASN1 "NULL" type. This could be handled before by using
7739 ASN1_TYPE but there wasn't any function that would try to read a NULL
7740 and produce an error if it couldn't. For compatibility we also have
7741 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7742 don't allocate anything because they don't need to.
7745 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7747 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7749 *) Rebuild of the memory allocation routines used by OpenSSL code and
7750 possibly others as well. The purpose is to make an interface that
7751 provide hooks so anyone can build a separate set of allocation and
7752 deallocation routines to be used by OpenSSL, for example memory
7753 pool implementations, or something else, which was previously hard
7754 since Malloc(), Realloc() and Free() were defined as macros having
7755 the values malloc, realloc and free, respectively (except for Win32
7756 compilations). The same is provided for memory debugging code.
7757 OpenSSL already comes with functionality to find memory leaks, but
7758 this gives people a chance to debug other memory problems.
7760 With these changes, a new set of functions and macros have appeared:
7762 CRYPTO_set_mem_debug_functions() [F]
7763 CRYPTO_get_mem_debug_functions() [F]
7764 CRYPTO_dbg_set_options() [F]
7765 CRYPTO_dbg_get_options() [F]
7766 CRYPTO_malloc_debug_init() [M]
7768 The memory debug functions are NULL by default, unless the library
7769 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7770 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7771 gives the standard debugging functions that come with OpenSSL) or
7772 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7773 provided by the library user) must be used. When the standard
7774 debugging functions are used, CRYPTO_dbg_set_options can be used to
7775 request additional information:
7776 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7777 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7779 Also, things like CRYPTO_set_mem_functions will always give the
7780 expected result (the new set of functions is used for allocation
7781 and deallocation) at all times, regardless of platform and compiler
7784 To finish it up, some functions that were never use in any other
7785 way than through macros have a new API and new semantic:
7788 CRYPTO_dbg_realloc()
7791 All macros of value have retained their old syntax.
7792 [Richard Levitte and Bodo Moeller]
7794 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7795 ordering of SMIMECapabilities wasn't in "strength order" and there
7796 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7800 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7801 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7802 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7804 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7805 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7806 functionality to handle multipart/signed properly) and a utility
7807 called 'smime' to call all this stuff. This is based on code I
7808 originally wrote for Celo who have kindly allowed it to be
7809 included in OpenSSL.
7812 *) Add variants des_set_key_checked and des_set_key_unchecked of
7813 des_set_key (aka des_key_sched). Global variable des_check_key
7814 decides which of these is called by des_set_key; this way
7815 des_check_key behaves as it always did, but applications and
7816 the library itself, which was buggy for des_check_key == 1,
7817 have a cleaner way to pick the version they need.
7820 *) New function PKCS12_newpass() which changes the password of a
7824 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7825 dynamic mix. In both cases the ids can be used as an index into the
7826 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7827 functions so they accept a list of the field values and the
7828 application doesn't need to directly manipulate the X509_TRUST
7832 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7836 *) Modify the way the V3 extension code looks up extensions. This now
7837 works in a similar way to the object code: we have some "standard"
7838 extensions in a static table which is searched with OBJ_bsearch()
7839 and the application can add dynamic ones if needed. The file
7840 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7841 updated whenever a new extension is added to the core code and kept
7842 in ext_nid order. There is a simple program 'tabtest.c' which checks
7843 this. New extensions are not added too often so this file can readily
7844 be maintained manually.
7846 There are two big advantages in doing things this way. The extensions
7847 can be looked up immediately and no longer need to be "added" using
7848 X509V3_add_standard_extensions(): this function now does nothing.
7849 [Side note: I get *lots* of email saying the extension code doesn't
7850 work because people forget to call this function]
7851 Also no dynamic allocation is done unless new extensions are added:
7852 so if we don't add custom extensions there is no need to call
7853 X509V3_EXT_cleanup().
7856 *) Modify enc utility's salting as follows: make salting the default. Add a
7857 magic header, so unsalted files fail gracefully instead of just decrypting
7858 to garbage. This is because not salting is a big security hole, so people
7859 should be discouraged from doing it.
7862 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7863 digest to be passed on the command line but it only used this
7864 parameter when signing a certificate. Modified so all relevant
7865 operations are affected by the digest parameter including the
7866 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7867 DSA key was used because it didn't fix the digest.
7870 *) Initial certificate chain verify code. Currently tests the untrusted
7871 certificates for consistency with the verify purpose (which is set
7872 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7874 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7875 this is because it will reject chains with invalid extensions whereas
7876 every previous version of OpenSSL and SSLeay made no checks at all.
7878 Trust code: checks the root CA for the relevant trust settings. Trust
7879 settings have an initial value consistent with the verify purpose: e.g.
7880 if the verify purpose is for SSL client use it expects the CA to be
7881 trusted for SSL client use. However the default value can be changed to
7882 permit custom trust settings: one example of this would be to only trust
7883 certificates from a specific "secure" set of CAs.
7885 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7886 which should be used for version portability: especially since the
7887 verify structure is likely to change more often now.
7889 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7890 to set them. If not set then assume SSL clients will verify SSL servers
7893 Two new options to the verify program: -untrusted allows a set of
7894 untrusted certificates to be passed in and -purpose which sets the
7895 intended purpose of the certificate. If a purpose is set then the
7896 new chain verify code is used to check extension consistency.
7899 *) Support for the authority information access extension.
7902 *) Modify RSA and DSA PEM read routines to transparently handle
7903 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7904 public keys in a format compatible with certificate
7905 SubjectPublicKeyInfo structures. Unfortunately there were already
7906 functions called *_PublicKey_* which used various odd formats so
7907 these are retained for compatibility: however the DSA variants were
7908 never in a public release so they have been deleted. Changed dsa/rsa
7909 utilities to handle the new format: note no releases ever handled public
7910 keys so we should be OK.
7912 The primary motivation for this change is to avoid the same fiasco
7913 that dogs private keys: there are several incompatible private key
7914 formats some of which are standard and some OpenSSL specific and
7915 require various evil hacks to allow partial transparent handling and
7916 even then it doesn't work with DER formats. Given the option anything
7917 other than PKCS#8 should be dumped: but the other formats have to
7918 stay in the name of compatibility.
7920 With public keys and the benefit of hindsight one standard format
7921 is used which works with EVP_PKEY, RSA or DSA structures: though
7922 it clearly returns an error if you try to read the wrong kind of key.
7924 Added a -pubkey option to the 'x509' utility to output the public key.
7925 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7926 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7927 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7928 that do the same as the EVP_PKEY_assign_*() except they up the
7929 reference count of the added key (they don't "swallow" the
7933 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7934 CRLs would fail if the file contained no certificates or no CRLs:
7935 added a new function to read in both types and return the number
7936 read: this means that if none are read it will be an error. The
7937 DER versions of the certificate and CRL reader would always fail
7938 because it isn't possible to mix certificates and CRLs in DER format
7939 without choking one or the other routine. Changed this to just read
7940 a certificate: this is the best we can do. Also modified the code
7941 in apps/verify.c to take notice of return codes: it was previously
7942 attempting to read in certificates from NULL pointers and ignoring
7943 any errors: this is one reason why the cert and CRL reader seemed
7944 to work. It doesn't check return codes from the default certificate
7945 routines: these may well fail if the certificates aren't installed.
7948 *) Code to support otherName option in GeneralName.
7951 *) First update to verify code. Change the verify utility
7952 so it warns if it is passed a self signed certificate:
7953 for consistency with the normal behaviour. X509_verify
7954 has been modified to it will now verify a self signed
7955 certificate if *exactly* the same certificate appears
7956 in the store: it was previously impossible to trust a
7957 single self signed certificate. This means that:
7958 openssl verify ss.pem
7959 now gives a warning about a self signed certificate but
7960 openssl verify -CAfile ss.pem ss.pem
7964 *) For servers, store verify_result in SSL_SESSION data structure
7965 (and add it to external session representation).
7966 This is needed when client certificate verifications fails,
7967 but an application-provided verification callback (set by
7968 SSL_CTX_set_cert_verify_callback) allows accepting the session
7969 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7970 but returns 1): When the session is reused, we have to set
7971 ssl->verify_result to the appropriate error code to avoid
7973 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7975 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7976 case in PKCS7_dataInit() where the signed PKCS7 structure
7977 didn't contain any existing data because it was being created.
7978 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7980 *) Add a salt to the key derivation routines in enc.c. This
7981 forms the first 8 bytes of the encrypted file. Also add a
7982 -S option to allow a salt to be input on the command line.
7985 *) New function X509_cmp(). Oddly enough there wasn't a function
7986 to compare two certificates. We do this by working out the SHA1
7987 hash and comparing that. X509_cmp() will be needed by the trust
7991 *) SSL_get1_session() is like SSL_get_session(), but increments
7992 the reference count in the SSL_SESSION returned.
7993 [Geoff Thorpe <geoff@eu.c2.net>]
7995 *) Fix for 'req': it was adding a null to request attributes.
7996 Also change the X509_LOOKUP and X509_INFO code to handle
7997 certificate auxiliary information.
8000 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8004 *) Add the possibility to add extra information to the memory leak
8005 detecting output, to form tracebacks, showing from where each
8006 allocation was originated: CRYPTO_push_info("constant string") adds
8007 the string plus current file name and line number to a per-thread
8008 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8009 is like calling CYRPTO_pop_info() until the stack is empty.
8010 Also updated memory leak detection code to be multi-thread-safe.
8013 *) Add options -text and -noout to pkcs7 utility and delete the
8014 encryption options which never did anything. Update docs.
8017 *) Add options to some of the utilities to allow the pass phrase
8018 to be included on either the command line (not recommended on
8019 OSes like Unix) or read from the environment. Update the
8020 manpages and fix a few bugs.
8023 *) Add a few manpages for some of the openssl commands.
8026 *) Fix the -revoke option in ca. It was freeing up memory twice,
8027 leaking and not finding already revoked certificates.
8030 *) Extensive changes to support certificate auxiliary information.
8031 This involves the use of X509_CERT_AUX structure and X509_AUX
8032 functions. An X509_AUX function such as PEM_read_X509_AUX()
8033 can still read in a certificate file in the usual way but it
8034 will also read in any additional "auxiliary information". By
8035 doing things this way a fair degree of compatibility can be
8036 retained: existing certificates can have this information added
8037 using the new 'x509' options.
8039 Current auxiliary information includes an "alias" and some trust
8040 settings. The trust settings will ultimately be used in enhanced
8041 certificate chain verification routines: currently a certificate
8042 can only be trusted if it is self signed and then it is trusted
8046 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8047 The problem was that one of the replacement routines had not been working
8048 since SSLeay releases. For now the offending routine has been replaced
8049 with non-optimised assembler. Even so, this now gives around 95%
8050 performance improvement for 1024 bit RSA signs.
8053 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8054 handling. Most clients have the effective key size in bits equal to
8055 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8056 A few however don't do this and instead use the size of the decrypted key
8057 to determine the RC2 key length and the AlgorithmIdentifier to determine
8058 the effective key length. In this case the effective key length can still
8059 be 40 bits but the key length can be 168 bits for example. This is fixed
8060 by manually forcing an RC2 key into the EVP_PKEY structure because the
8061 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8062 the key length and effective key length are equal.
8065 *) Add a bunch of functions that should simplify the creation of
8066 X509_NAME structures. Now you should be able to do:
8067 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8068 and have it automatically work out the correct field type and fill in
8069 the structures. The more adventurous can try:
8070 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8071 and it will (hopefully) work out the correct multibyte encoding.
8074 *) Change the 'req' utility to use the new field handling and multibyte
8075 copy routines. Before the DN field creation was handled in an ad hoc
8076 way in req, ca, and x509 which was rather broken and didn't support
8077 BMPStrings or UTF8Strings. Since some software doesn't implement
8078 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8079 using the dirstring_type option. See the new comment in the default
8080 openssl.cnf for more info.
8083 *) Make crypto/rand/md_rand.c more robust:
8084 - Assure unique random numbers after fork().
8085 - Make sure that concurrent threads access the global counter and
8086 md serializably so that we never lose entropy in them
8087 or use exactly the same state in multiple threads.
8088 Access to the large state is not always serializable because
8089 the additional locking could be a performance killer, and
8090 md should be large enough anyway.
8093 *) New file apps/app_rand.c with commonly needed functionality
8094 for handling the random seed file.
8096 Use the random seed file in some applications that previously did not:
8098 dsaparam -genkey (which also ignored its '-rand' option),
8101 x509 (when signing).
8102 Except on systems with /dev/urandom, it is crucial to have a random
8103 seed file at least for key creation, DSA signing, and for DH exchanges;
8104 for RSA signatures we could do without one.
8106 gendh and gendsa (unlike genrsa) used to read only the first byte
8107 of each file listed in the '-rand' option. The function as previously
8108 found in genrsa is now in app_rand.c and is used by all programs
8109 that support '-rand'.
8112 *) In RAND_write_file, use mode 0600 for creating files;
8113 don't just chmod when it may be too late.
8116 *) Report an error from X509_STORE_load_locations
8117 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8120 *) New function ASN1_mbstring_copy() this copies a string in either
8121 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8122 into an ASN1_STRING type. A mask of permissible types is passed
8123 and it chooses the "minimal" type to use or an error if not type
8127 *) Add function equivalents to the various macros in asn1.h. The old
8128 macros are retained with an M_ prefix. Code inside the library can
8129 use the M_ macros. External code (including the openssl utility)
8130 should *NOT* in order to be "shared library friendly".
8133 *) Add various functions that can check a certificate's extensions
8134 to see if it usable for various purposes such as SSL client,
8135 server or S/MIME and CAs of these types. This is currently
8136 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8137 verification. Also added a -purpose flag to x509 utility to
8138 print out all the purposes.
8141 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8145 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8146 for, obtain and decode and extension and obtain its critical flag.
8147 This allows all the necessary extension code to be handled in a
8148 single function call.
8151 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8152 platforms. See crypto/rc4/rc4_enc.c for further details.
8155 *) New -noout option to asn1parse. This causes no output to be produced
8156 its main use is when combined with -strparse and -out to extract data
8157 from a file (which may not be in ASN.1 format).
8160 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8161 when producing the local key id.
8162 [Richard Levitte <levitte@stacken.kth.se>]
8164 *) New option -dhparam in s_server. This allows a DH parameter file to be
8165 stated explicitly. If it is not stated then it tries the first server
8166 certificate file. The previous behaviour hard coded the filename
8170 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8171 a public key to be input or output. For example:
8172 openssl rsa -in key.pem -pubout -out pubkey.pem
8173 Also added necessary DSA public key functions to handle this.
8176 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8177 in the message. This was handled by allowing
8178 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8179 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8181 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8182 to the end of the strings whereas this didn't. This would cause problems
8183 if strings read with d2i_ASN1_bytes() were later modified.
8184 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8186 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8187 data and it contains EOF it will end up returning an error. This is
8188 caused by input 46 bytes long. The cause is due to the way base64
8189 BIOs find the start of base64 encoded data. They do this by trying a
8190 trial decode on each line until they find one that works. When they
8191 do a flag is set and it starts again knowing it can pass all the
8192 data directly through the decoder. Unfortunately it doesn't reset
8193 the context it uses. This means that if EOF is reached an attempt
8194 is made to pass two EOFs through the context and this causes the
8195 resulting error. This can also cause other problems as well. As is
8196 usual with these problems it takes *ages* to find and the fix is
8197 trivial: move one line.
8198 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8200 *) Ugly workaround to get s_client and s_server working under Windows. The
8201 old code wouldn't work because it needed to select() on sockets and the
8202 tty (for keypresses and to see if data could be written). Win32 only
8203 supports select() on sockets so we select() with a 1s timeout on the
8204 sockets and then see if any characters are waiting to be read, if none
8205 are present then we retry, we also assume we can always write data to
8206 the tty. This isn't nice because the code then blocks until we've
8207 received a complete line of data and it is effectively polling the
8208 keyboard at 1s intervals: however it's quite a bit better than not
8209 working at all :-) A dedicated Windows application might handle this
8210 with an event loop for example.
8213 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8214 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8215 will be called when RSA_sign() and RSA_verify() are used. This is useful
8216 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8217 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8218 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8219 This necessitated the support of an extra signature type NID_md5_sha1
8220 for SSL signatures and modifications to the SSL library to use it instead
8221 of calling RSA_public_decrypt() and RSA_private_encrypt().
8224 *) Add new -verify -CAfile and -CApath options to the crl program, these
8225 will lookup a CRL issuers certificate and verify the signature in a
8226 similar way to the verify program. Tidy up the crl program so it
8227 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8228 less strict. It will now permit CRL extensions even if it is not
8229 a V2 CRL: this will allow it to tolerate some broken CRLs.
8232 *) Initialize all non-automatic variables each time one of the openssl
8233 sub-programs is started (this is necessary as they may be started
8234 multiple times from the "OpenSSL>" prompt).
8235 [Lennart Bang, Bodo Moeller]
8237 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8238 removing all other RSA functionality (this is what NO_RSA does). This
8239 is so (for example) those in the US can disable those operations covered
8240 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8244 *) Non-copying interface to BIO pairs.
8245 (still largely untested)
8248 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8249 ASCII string. This was handled independently in various places before.
8252 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8253 UTF8 strings a character at a time.
8256 *) Use client_version from client hello to select the protocol
8257 (s23_srvr.c) and for RSA client key exchange verification
8258 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8261 *) Add various utility functions to handle SPKACs, these were previously
8262 handled by poking round in the structure internals. Added new function
8263 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8264 print, verify and generate SPKACs. Based on an original idea from
8265 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8268 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8271 *) Allow the config file extension section to be overwritten on the
8272 command line. Based on an original idea from Massimiliano Pala
8273 <madwolf@comune.modena.it>. The new option is called -extensions
8274 and can be applied to ca, req and x509. Also -reqexts to override
8275 the request extensions in req and -crlexts to override the crl extensions
8279 *) Add new feature to the SPKAC handling in ca. Now you can include
8280 the same field multiple times by preceding it by "XXXX." for example:
8283 this is the same syntax as used in the req config file.
8286 *) Allow certificate extensions to be added to certificate requests. These
8287 are specified in a 'req_extensions' option of the req section of the
8288 config file. They can be printed out with the -text option to req but
8289 are otherwise ignored at present.
8292 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8293 data read consists of only the final block it would not decrypted because
8294 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8295 A misplaced 'break' also meant the decrypted final block might not be
8296 copied until the next read.
8299 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8300 a few extra parameters to the DH structure: these will be useful if
8301 for example we want the value of 'q' or implement X9.42 DH.
8304 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8305 provides hooks that allow the default DSA functions or functions on a
8306 "per key" basis to be replaced. This allows hardware acceleration and
8307 hardware key storage to be handled without major modification to the
8308 library. Also added low level modexp hooks and CRYPTO_EX structure and
8309 associated functions.
8312 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8313 as "read only": it can't be written to and the buffer it points to will
8314 not be freed. Reading from a read only BIO is much more efficient than
8315 a normal memory BIO. This was added because there are several times when
8316 an area of memory needs to be read from a BIO. The previous method was
8317 to create a memory BIO and write the data to it, this results in two
8318 copies of the data and an O(n^2) reading algorithm. There is a new
8319 function BIO_new_mem_buf() which creates a read only memory BIO from
8320 an area of memory. Also modified the PKCS#7 routines to use read only
8324 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8325 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8326 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8327 but a retry condition occured while trying to read the rest.
8330 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8331 NID_pkcs7_encrypted by default: this was wrong since this should almost
8332 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8333 the encrypted data type: this is a more sensible place to put it and it
8334 allows the PKCS#12 code to be tidied up that duplicated this
8338 *) Changed obj_dat.pl script so it takes its input and output files on
8339 the command line. This should avoid shell escape redirection problems
8343 *) Initial support for certificate extension requests, these are included
8344 in things like Xenroll certificate requests. Included functions to allow
8345 extensions to be obtained and added.
8348 *) -crlf option to s_client and s_server for sending newlines as
8349 CRLF (as required by many protocols).
8352 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8354 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8355 [Ralf S. Engelschall]
8357 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8358 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8360 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8364 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8365 DH parameters/keys (q is lost during that conversion, but the resulting
8366 DH parameters contain its length).
8368 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8369 much faster than DH_generate_parameters (which creates parameters
8370 where p = 2*q + 1), and also the smaller q makes DH computations
8371 much more efficient (160-bit exponentiation instead of 1024-bit
8372 exponentiation); so this provides a convenient way to support DHE
8373 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8374 utter importance to use
8375 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8377 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8378 when such DH parameters are used, because otherwise small subgroup
8379 attacks may become possible!
8382 *) Avoid memory leak in i2d_DHparams.
8385 *) Allow the -k option to be used more than once in the enc program:
8386 this allows the same encrypted message to be read by multiple recipients.
8389 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8390 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8391 it will always use the numerical form of the OID, even if it has a short
8395 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8396 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8397 otherwise bn_mod_exp was called. In the case of hardware keys for example
8398 no private key components need be present and it might store extra data
8399 in the RSA structure, which cannot be accessed from bn_mod_exp.
8400 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8401 private key operations.
8404 *) Added support for SPARC Linux.
8407 *) pem_password_cb function type incompatibly changed from
8408 typedef int pem_password_cb(char *buf, int size, int rwflag);
8410 ....(char *buf, int size, int rwflag, void *userdata);
8411 so that applications can pass data to their callbacks:
8412 The PEM[_ASN1]_{read,write}... functions and macros now take an
8413 additional void * argument, which is just handed through whenever
8414 the password callback is called.
8415 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8417 New function SSL_CTX_set_default_passwd_cb_userdata.
8419 Compatibility note: As many C implementations push function arguments
8420 onto the stack in reverse order, the new library version is likely to
8421 interoperate with programs that have been compiled with the old
8422 pem_password_cb definition (PEM_whatever takes some data that
8423 happens to be on the stack as its last argument, and the callback
8424 just ignores this garbage); but there is no guarantee whatsoever that
8427 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8428 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8429 problems not only on Windows, but also on some Unix platforms.
8430 To avoid problematic command lines, these definitions are now in an
8431 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8432 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8435 *) MIPS III/IV assembler module is reimplemented.
8438 *) More DES library cleanups: remove references to srand/rand and
8439 delete an unused file.
8442 *) Add support for the the free Netwide assembler (NASM) under Win32,
8443 since not many people have MASM (ml) and it can be hard to obtain.
8444 This is currently experimental but it seems to work OK and pass all
8445 the tests. Check out INSTALL.W32 for info.
8448 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8449 without temporary keys kept an extra copy of the server key,
8450 and connections with temporary keys did not free everything in case
8454 *) New function RSA_check_key and new openssl rsa option -check
8455 for verifying the consistency of RSA keys.
8456 [Ulf Moeller, Bodo Moeller]
8458 *) Various changes to make Win32 compile work:
8459 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8460 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8461 comparison" warnings.
8462 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8465 *) Add a debugging option to PKCS#5 v2 key generation function: when
8466 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8467 derived keys are printed to stderr.
8470 *) Copy the flags in ASN1_STRING_dup().
8471 [Roman E. Pavlov <pre@mo.msk.ru>]
8473 *) The x509 application mishandled signing requests containing DSA
8474 keys when the signing key was also DSA and the parameters didn't match.
8476 It was supposed to omit the parameters when they matched the signing key:
8477 the verifying software was then supposed to automatically use the CA's
8478 parameters if they were absent from the end user certificate.
8480 Omitting parameters is no longer recommended. The test was also
8481 the wrong way round! This was probably due to unusual behaviour in
8482 EVP_cmp_parameters() which returns 1 if the parameters match.
8483 This meant that parameters were omitted when they *didn't* match and
8484 the certificate was useless. Certificates signed with 'ca' didn't have
8486 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8488 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8489 The interface is as follows:
8490 Applications can use
8491 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8492 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8493 "off" is now the default.
8494 The library internally uses
8495 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8496 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8497 to disable memory-checking temporarily.
8499 Some inconsistent states that previously were possible (and were
8500 even the default) are now avoided.
8502 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8503 with each memory chunk allocated; this is occasionally more helpful
8504 than just having a counter.
8506 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8508 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8512 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8513 which largely parallels "options", but is for changing API behaviour,
8514 whereas "options" are about protocol behaviour.
8515 Initial "mode" flags are:
8517 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8518 a single record has been written.
8519 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8520 retries use the same buffer location.
8521 (But all of the contents must be
8525 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8528 *) Fix problems with no-hmac etc.
8529 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8531 *) New functions RSA_get_default_method(), RSA_set_method() and
8532 RSA_get_method(). These allows replacement of RSA_METHODs without having
8533 to mess around with the internals of an RSA structure.
8536 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8537 Also really enable memory leak checks in openssl.c and in some
8539 [Chad C. Mulligan, Bodo Moeller]
8541 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8542 up the length of negative integers. This has now been simplified to just
8543 store the length when it is first determined and use it later, rather
8544 than trying to keep track of where data is copied and updating it to
8546 [Steve Henson, reported by Brien Wheeler
8547 <bwheeler@authentica-security.com>]
8549 *) Add a new function PKCS7_signatureVerify. This allows the verification
8550 of a PKCS#7 signature but with the signing certificate passed to the
8551 function itself. This contrasts with PKCS7_dataVerify which assumes the
8552 certificate is present in the PKCS#7 structure. This isn't always the
8553 case: certificates can be omitted from a PKCS#7 structure and be
8554 distributed by "out of band" means (such as a certificate database).
8557 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8558 function prototypes in pem.h, also change util/mkdef.pl to add the
8559 necessary function names.
8562 *) mk1mf.pl (used by Windows builds) did not properly read the
8563 options set by Configure in the top level Makefile, and Configure
8564 was not even able to write more than one option correctly.
8565 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8568 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8569 file to be loaded from a BIO or FILE pointer. The BIO version will
8570 for example allow memory BIOs to contain config info.
8573 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8574 Whoever hopes to achieve shared-library compatibility across versions
8575 must use this, not the compile-time macro.
8576 (Exercise 0.9.4: Which is the minimum library version required by
8578 Note: All this applies only to multi-threaded programs, others don't
8582 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8583 through a BIO pair triggered the default case, i.e.
8584 SSLerr(...,SSL_R_UNKNOWN_STATE).
8587 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8588 can use the SSL library even if none of the specific BIOs is
8592 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8593 for the encoded length.
8594 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8596 *) Add initial documentation of the X509V3 functions.
8599 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8600 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8601 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8602 secure PKCS#8 private key format with a high iteration count.
8605 *) Fix determination of Perl interpreter: A perl or perl5
8606 _directory_ in $PATH was also accepted as the interpreter.
8607 [Ralf S. Engelschall]
8609 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8610 wrong with it but it was very old and did things like calling
8611 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8615 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8616 to use the new extension code.
8619 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8620 with macros. This should make it easier to change their form, add extra
8621 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8625 *) Add to configuration table a new entry that can specify an alternative
8626 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8627 according to Mark Crispin <MRC@Panda.COM>.
8631 *) DES CBC did not update the IV. Weird.
8634 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8635 Changing the behaviour of the former might break existing programs --
8636 where IV updating is needed, des_ncbc_encrypt can be used.
8639 *) When bntest is run from "make test" it drives bc to check its
8640 calculations, as well as internally checking them. If an internal check
8641 fails, it needs to cause bc to give a non-zero result or make test carries
8642 on without noticing the failure. Fixed.
8645 *) DES library cleanups.
8648 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8649 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8650 ciphers. NOTE: although the key derivation function has been verified
8651 against some published test vectors it has not been extensively tested
8652 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8656 *) Instead of "mkdir -p", which is not fully portable, use new
8657 Perl script "util/mkdir-p.pl".
8660 *) Rewrite the way password based encryption (PBE) is handled. It used to
8661 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8662 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8663 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8664 the 'parameter' field of the AlgorithmIdentifier is passed to the
8665 underlying key generation function so it must do its own ASN1 parsing.
8666 This has also changed the EVP_PBE_CipherInit() function which now has a
8667 'parameter' argument instead of literal salt and iteration count values
8668 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8671 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8672 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8673 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8674 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8675 value was just used as a "magic string" and not used directly its
8676 value doesn't matter.
8679 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8683 *) "linux-sparc64" configuration (ultrapenguin).
8684 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8685 "linux-sparc" configuration.
8686 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8688 *) config now generates no-xxx options for missing ciphers.
8691 *) Support the EBCDIC character set (work in progress).
8692 File ebcdic.c not yet included because it has a different license.
8693 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8695 *) Support BS2000/OSD-POSIX.
8696 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8698 *) Make callbacks for key generation use void * instead of char *.
8701 *) Make S/MIME samples compile (not yet tested).
8704 *) Additional typesafe stacks.
8707 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8711 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8713 *) New configuration variant "sco5-gcc".
8715 *) Updated some demos.
8716 [Sean O Riordain, Wade Scholine]
8718 *) Add missing BIO_free at exit of pkcs12 application.
8721 *) Fix memory leak in conf.c.
8724 *) Updates for Win32 to assembler version of MD5.
8727 *) Set #! path to perl in apps/der_chop to where we found it
8728 instead of using a fixed path.
8731 *) SHA library changes for irix64-mips4-cc.
8734 *) Improvements for VMS support.
8738 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8740 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8741 This also avoids the problems with SC4.2 and unpatched SC5.
8742 [Andy Polyakov <appro@fy.chalmers.se>]
8744 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8745 These are required because of the typesafe stack would otherwise break
8746 existing code. If old code used a structure member which used to be STACK
8747 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8748 sk_num or sk_value it would produce an error because the num, data members
8749 are not present in STACK_OF. Now it just produces a warning. sk_set
8750 replaces the old method of assigning a value to sk_value
8751 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8752 that does this will no longer work (and should use sk_set instead) but
8753 this could be regarded as a "questionable" behaviour anyway.
8756 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8757 correctly handle encrypted S/MIME data.
8760 *) Change type of various DES function arguments from des_cblock
8761 (which means, in function argument declarations, pointer to char)
8762 to des_cblock * (meaning pointer to array with 8 char elements),
8763 which allows the compiler to do more typechecking; it was like
8764 that back in SSLeay, but with lots of ugly casts.
8766 Introduce new type const_des_cblock.
8769 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8770 problems: find RecipientInfo structure that matches recipient certificate
8771 and initialise the ASN1 structures properly based on passed cipher.
8774 *) Belatedly make the BN tests actually check the results.
8777 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8778 to and from BNs: it was completely broken. New compilation option
8779 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8780 key elements as negative integers.
8783 *) Reorganize and speed up MD5.
8784 [Andy Polyakov <appro@fy.chalmers.se>]
8787 [Richard Levitte <richard@levitte.org>]
8789 *) New option -out to asn1parse to allow the parsed structure to be
8790 output to a file. This is most useful when combined with the -strparse
8791 option to examine the output of things like OCTET STRINGS.
8794 *) Make SSL library a little more fool-proof by not requiring any longer
8795 that SSL_set_{accept,connect}_state be called before
8796 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8797 in many applications because usually everything *appeared* to work as
8798 intended anyway -- now it really works as intended).
8801 *) Move openssl.cnf out of lib/.
8804 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8805 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8806 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8807 [Ralf S. Engelschall]
8809 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8810 handle PKCS#7 enveloped data properly.
8811 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8813 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8814 copying pointers. The cert_st handling is changed by this in
8815 various ways (and thus what used to be known as ctx->default_cert
8816 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8817 any longer when s->cert does not give us what we need).
8818 ssl_cert_instantiate becomes obsolete by this change.
8819 As soon as we've got the new code right (possibly it already is?),
8820 we have solved a couple of bugs of the earlier code where s->cert
8821 was used as if it could not have been shared with other SSL structures.
8823 Note that using the SSL API in certain dirty ways now will result
8824 in different behaviour than observed with earlier library versions:
8825 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8826 does not influence s as it used to.
8828 In order to clean up things more thoroughly, inside SSL_SESSION
8829 we don't use CERT any longer, but a new structure SESS_CERT
8830 that holds per-session data (if available); currently, this is
8831 the peer's certificate chain and, for clients, the server's certificate
8832 and temporary key. CERT holds only those values that can have
8833 meaningful defaults in an SSL_CTX.
8836 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8837 from the internal representation. Various PKCS#7 fixes: remove some
8838 evil casts and set the enc_dig_alg field properly based on the signing
8842 *) Allow PKCS#12 password to be set from the command line or the
8843 environment. Let 'ca' get its config file name from the environment
8844 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8848 *) Allow certificate policies extension to use an IA5STRING for the
8849 organization field. This is contrary to the PKIX definition but
8850 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8854 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8855 without disallowing inline assembler and the like for non-pedantic builds.
8858 *) Support Borland C++ builder.
8859 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8864 *) SHA-1 cleanups and performance enhancements.
8865 [Andy Polyakov <appro@fy.chalmers.se>]
8867 *) Sparc v8plus assembler for the bignum library.
8868 [Andy Polyakov <appro@fy.chalmers.se>]
8870 *) Accept any -xxx and +xxx compiler options in Configure.
8873 *) Update HPUX configuration.
8876 *) Add missing sk_<type>_unshift() function to safestack.h
8877 [Ralf S. Engelschall]
8879 *) New function SSL_CTX_use_certificate_chain_file that sets the
8880 "extra_cert"s in addition to the certificate. (This makes sense
8881 only for "PEM" format files, as chains as a whole are not
8885 *) Support verify_depth from the SSL API.
8886 x509_vfy.c had what can be considered an off-by-one-error:
8887 Its depth (which was not part of the external interface)
8888 was actually counting the number of certificates in a chain;
8889 now it really counts the depth.
8892 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8893 instead of X509err, which often resulted in confusing error
8894 messages since the error codes are not globally unique
8895 (e.g. an alleged error in ssl3_accept when a certificate
8896 didn't match the private key).
8898 *) New function SSL_CTX_set_session_id_context that allows to set a default
8899 value (so that you don't need SSL_set_session_id_context for each
8900 connection using the SSL_CTX).
8903 *) OAEP decoding bug fix.
8906 *) Support INSTALL_PREFIX for package builders, as proposed by
8910 *) New Configure options "threads" and "no-threads". For systems
8911 where the proper compiler options are known (currently Solaris
8912 and Linux), "threads" is the default.
8915 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8918 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8919 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8920 such as /usr/local/bin.
8923 *) "make linux-shared" to build shared libraries.
8924 [Niels Poppe <niels@netbox.org>]
8926 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8929 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8930 extension adding in x509 utility.
8933 *) Remove NOPROTO sections and error code comments.
8936 *) Partial rewrite of the DEF file generator to now parse the ANSI
8940 *) New Configure options --prefix=DIR and --openssldir=DIR.
8943 *) Complete rewrite of the error code script(s). It is all now handled
8944 by one script at the top level which handles error code gathering,
8945 header rewriting and C source file generation. It should be much better
8946 than the old method: it now uses a modified version of Ulf's parser to
8947 read the ANSI prototypes in all header files (thus the old K&R definitions
8948 aren't needed for error creation any more) and do a better job of
8949 translating function codes into names. The old 'ASN1 error code imbedded
8950 in a comment' is no longer necessary and it doesn't use .err files which
8951 have now been deleted. Also the error code call doesn't have to appear all
8952 on one line (which resulted in some large lines...).
8955 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8958 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8959 0 (which usually indicates a closed connection), but continue reading.
8962 *) Fix some race conditions.
8965 *) Add support for CRL distribution points extension. Add Certificate
8966 Policies and CRL distribution points documentation.
8969 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8972 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8973 8 of keying material. Merlin has also confirmed interop with this fix
8974 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8975 [Merlin Hughes <merlin@baltimore.ie>]
8977 *) Fix lots of warnings.
8978 [Richard Levitte <levitte@stacken.kth.se>]
8980 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8981 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8982 [Richard Levitte <levitte@stacken.kth.se>]
8984 *) Fix problems with sizeof(long) == 8.
8985 [Andy Polyakov <appro@fy.chalmers.se>]
8987 *) Change functions to ANSI C.
8990 *) Fix typos in error codes.
8991 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8993 *) Remove defunct assembler files from Configure.
8996 *) SPARC v8 assembler BIGNUM implementation.
8997 [Andy Polyakov <appro@fy.chalmers.se>]
8999 *) Support for Certificate Policies extension: both print and set.
9000 Various additions to support the r2i method this uses.
9003 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9004 return a const string when you are expecting an allocated buffer.
9007 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9008 types DirectoryString and DisplayText.
9011 *) Add code to allow r2i extensions to access the configuration database,
9012 add an LHASH database driver and add several ctx helper functions.
9015 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9016 fail when they extended the size of a BIGNUM.
9019 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9020 support typesafe stack.
9023 *) Fix typo in SSL_[gs]et_options().
9024 [Nils Frostberg <nils@medcom.se>]
9026 *) Delete various functions and files that belonged to the (now obsolete)
9027 old X509V3 handling code.
9030 *) New Configure option "rsaref".
9033 *) Don't auto-generate pem.h.
9036 *) Introduce type-safe ASN.1 SETs.
9039 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9040 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9042 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9043 that links with OpenSSL (well at least cause lots of warnings), but fear
9044 not: the conversion is trivial, and it eliminates loads of evil casts. A
9045 few STACKed things have been converted already. Feel free to convert more.
9046 In the fullness of time, I'll do away with the STACK type altogether.
9049 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9050 specified in <certfile> by updating the entry in the index.txt file.
9051 This way one no longer has to edit the index.txt file manually for
9052 revoking a certificate. The -revoke option does the gory details now.
9053 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9055 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9056 `-text' option at all and this way the `-noout -text' combination was
9057 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9058 [Ralf S. Engelschall]
9060 *) Make sure a corresponding plain text error message exists for the
9061 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9062 verify callback function determined that a certificate was revoked.
9063 [Ralf S. Engelschall]
9065 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9066 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9067 all available cipers including rc5, which was forgotten until now.
9068 In order to let the testing shell script know which algorithms
9069 are available, a new (up to now undocumented) command
9070 "openssl list-cipher-commands" is used.
9073 *) Bugfix: s_client occasionally would sleep in select() when
9074 it should have checked SSL_pending() first.
9077 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9078 the raw DSA values prior to ASN.1 encoding.
9081 *) Tweaks to Configure
9082 [Niels Poppe <niels@netbox.org>]
9084 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9088 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9091 *) New config option to avoid instructions that are illegal on the 80386.
9092 The default code is faster, but requires at least a 486.
9095 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9096 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9097 same as SSL2_VERSION anyway.
9100 *) New "-showcerts" option for s_client.
9103 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9104 application. Various cleanups and fixes.
9107 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9108 modify error routines to work internally. Add error codes and PBE init
9109 to library startup routines.
9112 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9113 packing functions to asn1 and evp. Changed function names and error
9114 codes along the way.
9117 *) PKCS12 integration: and so it begins... First of several patches to
9118 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9119 objects to objects.h
9122 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9123 and display support for Thawte strong extranet extension.
9126 *) Add LinuxPPC support.
9127 [Jeff Dubrule <igor@pobox.org>]
9129 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9130 bn_div_words in alpha.s.
9131 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9133 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9134 OAEP isn't supported when OpenSSL is built with RSAref.
9135 [Ulf Moeller <ulf@fitug.de>]
9137 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9138 so they no longer are missing under -DNOPROTO.
9139 [Soren S. Jorvang <soren@t.dk>]
9142 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9144 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9145 doesn't work when the session is reused. Coming soon!
9148 *) Fix a security hole, that allows sessions to be reused in the wrong
9149 context thus bypassing client cert protection! All software that uses
9150 client certs and session caches in multiple contexts NEEDS PATCHING to
9151 allow session reuse! A fuller solution is in the works.
9152 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9154 *) Some more source tree cleanups (removed obsolete files
9155 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9156 permission on "config" script to be executable) and a fix for the INSTALL
9158 [Ulf Moeller <ulf@fitug.de>]
9160 *) Remove some legacy and erroneous uses of malloc, free instead of
9162 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9164 *) Make rsa_oaep_test return non-zero on error.
9165 [Ulf Moeller <ulf@fitug.de>]
9167 *) Add support for native Solaris shared libraries. Configure
9168 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9169 if someone would make that last step automatic.
9170 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9172 *) ctx_size was not built with the right compiler during "make links". Fixed.
9175 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9176 except NULL ciphers". This means the default cipher list will no longer
9177 enable NULL ciphers. They need to be specifically enabled e.g. with
9178 the string "DEFAULT:eNULL".
9181 *) Fix to RSA private encryption routines: if p < q then it would
9182 occasionally produce an invalid result. This will only happen with
9183 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9186 *) Be less restrictive and allow also `perl util/perlpath.pl
9187 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9188 because this way one can also use an interpreter named `perl5' (which is
9189 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9190 installed as `perl').
9191 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9193 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9194 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9196 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9197 advapi32.lib to Win32 build and change the pem test comparision
9198 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9199 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9200 and crypto/des/ede_cbcm_enc.c.
9203 *) DES quad checksum was broken on big-endian architectures. Fixed.
9206 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9207 Win32 test batch file so it (might) work again. The Win32 test batch file
9208 is horrible: I feel ill....
9211 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9212 in e_os.h. Audit of header files to check ANSI and non ANSI
9213 sections: 10 functions were absent from non ANSI section and not exported
9214 from Windows DLLs. Fixed up libeay.num for new functions.
9217 *) Make `openssl version' output lines consistent.
9218 [Ralf S. Engelschall]
9220 *) Fix Win32 symbol export lists for BIO functions: Added
9221 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9222 to ms/libeay{16,32}.def.
9223 [Ralf S. Engelschall]
9225 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9226 fine under Unix and passes some trivial tests I've now added. But the
9227 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9228 added to make sure no one expects that this stuff really works in the
9229 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9230 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9232 [Ralf S. Engelschall]
9234 *) Fix the generation of two part addresses in perl.
9235 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9237 *) Add config entry for Linux on MIPS.
9238 [John Tobey <jtobey@channel1.com>]
9240 *) Make links whenever Configure is run, unless we are on Windoze.
9243 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9244 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9248 *) Add a useful kludge to allow package maintainers to specify compiler and
9249 other platforms details on the command line without having to patch the
9250 Configure script everytime: One now can use ``perl Configure
9251 <id>:<details>'', i.e. platform ids are allowed to have details appended
9252 to them (seperated by colons). This is treated as there would be a static
9253 pre-configured entry in Configure's %table under key <id> with value
9254 <details> and ``perl Configure <id>'' is called. So, when you want to
9255 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9256 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9257 now, which overrides the FreeBSD-elf entry on-the-fly.
9258 [Ralf S. Engelschall]
9260 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9263 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9264 on the `perl Configure ...' command line. This way one can compile
9265 OpenSSL libraries with Position Independent Code (PIC) which is needed
9266 for linking it into DSOs.
9267 [Ralf S. Engelschall]
9269 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9273 *) Cleaned up the LICENSE document: The official contact for any license
9274 questions now is the OpenSSL core team under openssl-core@openssl.org.
9275 And add a paragraph about the dual-license situation to make sure people
9276 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9277 to the OpenSSL toolkit.
9278 [Ralf S. Engelschall]
9280 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9281 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9282 Additonally cleaned up the `make links' target: Remove unnecessary
9283 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9284 to speed processing and no longer clutter the display with confusing
9285 stuff. Instead only the actually done links are displayed.
9286 [Ralf S. Engelschall]
9288 *) Permit null encryption ciphersuites, used for authentication only. It used
9289 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9290 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9294 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9295 signed attributes when verifying signatures (this would break them),
9296 the detached data encoding was wrong and public keys obtained using
9297 X509_get_pubkey() weren't freed.
9300 *) Add text documentation for the BUFFER functions. Also added a work around
9301 to a Win95 console bug. This was triggered by the password read stuff: the
9302 last character typed gets carried over to the next fread(). If you were
9303 generating a new cert request using 'req' for example then the last
9304 character of the passphrase would be CR which would then enter the first
9308 *) Added the new `Includes OpenSSL Cryptography Software' button as
9309 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9310 button and can be used by applications based on OpenSSL to show the
9311 relationship to the OpenSSL project.
9312 [Ralf S. Engelschall]
9314 *) Remove confusing variables in function signatures in files
9315 ssl/ssl_lib.c and ssl/ssl.h.
9316 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9318 *) Don't install bss_file.c under PREFIX/include/
9319 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9321 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9322 functions that return function pointers and has support for NT specific
9323 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9324 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9325 unsigned to signed types: this was killing the Win32 compile.
9328 *) Add new certificate file to stack functions,
9329 SSL_add_dir_cert_subjects_to_stack() and
9330 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9331 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9332 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9333 This means that Apache-SSL and similar packages don't have to mess around
9334 to add as many CAs as they want to the preferred list.
9337 *) Experiment with doxygen documentation. Currently only partially applied to
9339 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9340 openssl.doxy as the configuration file.
9343 *) Get rid of remaining C++-style comments which strict C compilers hate.
9344 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9346 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9347 compiled in by default: it has problems with large keys.
9350 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9351 DH private keys and/or callback functions which directly correspond to
9352 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9353 is needed for applications which have to configure certificates on a
9354 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9356 For the RSA certificate situation is makes no difference, but
9357 for the DSA certificate situation this fixes the "no shared cipher"
9358 problem where the OpenSSL cipher selection procedure failed because the
9359 temporary keys were not overtaken from the context and the API provided
9360 no way to reconfigure them.
9361 The new functions now let applications reconfigure the stuff and they
9362 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9363 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9364 non-public-API function ssl_cert_instantiate() is used as a helper
9365 function and also to reduce code redundancy inside ssl_rsa.c.
9366 [Ralf S. Engelschall]
9368 *) Move s_server -dcert and -dkey options out of the undocumented feature
9369 area because they are useful for the DSA situation and should be
9370 recognized by the users.
9371 [Ralf S. Engelschall]
9373 *) Fix the cipher decision scheme for export ciphers: the export bits are
9374 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9375 SSL_EXP_MASK. So, the original variable has to be used instead of the
9376 already masked variable.
9377 [Richard Levitte <levitte@stacken.kth.se>]
9379 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9380 [Richard Levitte <levitte@stacken.kth.se>]
9382 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9383 from `int' to `unsigned int' because it's a length and initialized by
9384 EVP_DigestFinal() which expects an `unsigned int *'.
9385 [Richard Levitte <levitte@stacken.kth.se>]
9387 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9388 script. Instead use the usual Shell->Perl transition trick.
9389 [Ralf S. Engelschall]
9391 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9392 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9393 -noout -modulus' as it's already the case for `openssl rsa -noout
9394 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9395 currently the public key is printed (a decision which was already done by
9396 `openssl dsa -modulus' in the past) which serves a similar purpose.
9397 Additionally the NO_RSA no longer completely removes the whole -modulus
9398 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9400 [Ralf S. Engelschall]
9402 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9403 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9404 [Arne Ansper <arne@ats.cyber.ee>]
9406 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9407 to be added. Now both 'req' and 'ca' can use new objects defined in the
9411 *) Add cool BIO that does syslog (or event log on NT).
9412 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9414 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9415 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9416 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9417 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9420 *) Add preliminary config info for new extension code.
9423 *) Make RSA_NO_PADDING really use no padding.
9424 [Ulf Moeller <ulf@fitug.de>]
9426 *) Generate errors when private/public key check is done.
9429 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9430 for some CRL extensions and new objects added.
9433 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9434 key usage extension and fuller support for authority key id.
9437 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9438 padding method for RSA, which is recommended for new applications in PKCS
9439 #1 v2.0 (RFC 2437, October 1998).
9440 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9441 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9442 against Bleichbacher's attack on RSA.
9443 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9446 *) Updates to the new SSL compression code
9447 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9449 *) Fix so that the version number in the master secret, when passed
9450 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9451 (because the server will not accept higher), that the version number
9452 is 0x03,0x01, not 0x03,0x00
9453 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9455 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9456 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9457 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9460 *) Support for RAW extensions where an arbitrary extension can be
9461 created by including its DER encoding. See apps/openssl.cnf for
9465 *) Make sure latest Perl versions don't interpret some generated C array
9466 code as Perl array code in the crypto/err/err_genc.pl script.
9467 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9469 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9470 not many people have the assembler. Various Win32 compilation fixes and
9471 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9475 *) Modify configure script 'Configure' to automatically create crypto/date.h
9476 file under Win32 and also build pem.h from pem.org. New script
9477 util/mkfiles.pl to create the MINFO file on environments that can't do a
9478 'make files': perl util/mkfiles.pl >MINFO should work.
9481 *) Major rework of DES function declarations, in the pursuit of correctness
9482 and purity. As a result, many evil casts evaporated, and some weirdness,
9483 too. You may find this causes warnings in your code. Zapping your evil
9484 casts will probably fix them. Mostly.
9487 *) Fix for a typo in asn1.h. Bug fix to object creation script
9488 obj_dat.pl. It considered a zero in an object definition to mean
9489 "end of object": none of the objects in objects.h have any zeros
9490 so it wasn't spotted.
9491 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9493 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9494 Masking (CBCM). In the absence of test vectors, the best I have been able
9495 to do is check that the decrypt undoes the encrypt, so far. Send me test
9496 vectors if you have them.
9499 *) Correct calculation of key length for export ciphers (too much space was
9500 allocated for null ciphers). This has not been tested!
9503 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9504 message is now correct (it understands "crypto" and "ssl" on its
9505 command line). There is also now an "update" option. This will update
9506 the util/ssleay.num and util/libeay.num files with any new functions.
9508 perl util/mkdef.pl crypto ssl update
9509 it will update them.
9512 *) Overhauled the Perl interface (perl/*):
9513 - ported BN stuff to OpenSSL's different BN library
9514 - made the perl/ source tree CVS-aware
9515 - renamed the package from SSLeay to OpenSSL (the files still contain
9516 their history because I've copied them in the repository)
9517 - removed obsolete files (the test scripts will be replaced
9518 by better Test::Harness variants in the future)
9519 [Ralf S. Engelschall]
9521 *) First cut for a very conservative source tree cleanup:
9522 1. merge various obsolete readme texts into doc/ssleay.txt
9523 where we collect the old documents and readme texts.
9524 2. remove the first part of files where I'm already sure that we no
9525 longer need them because of three reasons: either they are just temporary
9526 files which were left by Eric or they are preserved original files where
9527 I've verified that the diff is also available in the CVS via "cvs diff
9528 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9529 the crypto/md/ stuff).
9530 [Ralf S. Engelschall]
9532 *) More extension code. Incomplete support for subject and issuer alt
9533 name, issuer and authority key id. Change the i2v function parameters
9534 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9535 what that's for :-) Fix to ASN1 macro which messed up
9536 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9539 *) Preliminary support for ENUMERATED type. This is largely copied from the
9543 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9544 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9546 *) Make sure `make rehash' target really finds the `openssl' program.
9547 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9549 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9550 like to hear about it if this slows down other processors.
9553 *) Add CygWin32 platform information to Configure script.
9554 [Alan Batie <batie@aahz.jf.intel.com>]
9556 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9557 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9559 *) New program nseq to manipulate netscape certificate sequences
9562 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9566 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9567 but the BN code had some problems that would cause failures when
9568 doing certificate verification and some other functions.
9569 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9571 *) Add ASN1 and PEM code to support netscape certificate sequences.
9574 *) Add ASN1 and PEM code to support netscape certificate sequences.
9577 *) Add several PKIX and private extended key usage OIDs.
9580 *) Modify the 'ca' program to handle the new extension code. Modify
9581 openssl.cnf for new extension format, add comments.
9584 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9585 and add a sample to openssl.cnf so req -x509 now adds appropriate
9589 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9590 error code, add initial support to X509_print() and x509 application.
9593 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9594 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9595 stuff is currently isolated and isn't even compiled yet.
9598 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9599 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9600 Removed the versions check from X509 routines when loading extensions:
9601 this allows certain broken certificates that don't set the version
9602 properly to be processed.
9605 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9606 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9607 can still be regenerated with "make depend".
9610 *) Spelling mistake in C version of CAST-128.
9611 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9613 *) Changes to the error generation code. The perl script err-code.pl
9614 now reads in the old error codes and retains the old numbers, only
9615 adding new ones if necessary. It also only changes the .err files if new
9616 codes are added. The makefiles have been modified to only insert errors
9617 when needed (to avoid needlessly modifying header files). This is done
9618 by only inserting errors if the .err file is newer than the auto generated
9619 C file. To rebuild all the error codes from scratch (the old behaviour)
9620 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9621 or delete all the .err files.
9624 *) CAST-128 was incorrectly implemented for short keys. The C version has
9625 been fixed, but is untested. The assembler versions are also fixed, but
9626 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9627 to regenerate it if needed.
9628 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9629 Hagino <itojun@kame.net>]
9631 *) File was opened incorrectly in randfile.c.
9632 [Ulf Möller <ulf@fitug.de>]
9634 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9635 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9636 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9637 al: it's just almost always a UTCTime. Note this patch adds new error
9638 codes so do a "make errors" if there are problems.
9641 *) Correct Linux 1 recognition in config.
9642 [Ulf Möller <ulf@fitug.de>]
9644 *) Remove pointless MD5 hash when using DSA keys in ca.
9645 [Anonymous <nobody@replay.com>]
9647 *) Generate an error if given an empty string as a cert directory. Also
9648 generate an error if handed NULL (previously returned 0 to indicate an
9649 error, but didn't set one).
9650 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9652 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9655 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9656 parameters. This was causing a warning which killed off the Win32 compile.
9659 *) Remove C++ style comments from crypto/bn/bn_local.h.
9660 [Neil Costigan <neil.costigan@celocom.com>]
9662 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9663 based on a text string, looking up short and long names and finally
9664 "dot" format. The "dot" format stuff didn't work. Added new function
9665 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9666 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9667 OID is not part of the table.
9670 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9671 X509_LOOKUP_by_alias().
9674 *) Sort openssl functions by name.
9677 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9678 encryption from sample DSA keys (in case anyone is interested the password
9682 *) Make _all_ *_free functions accept a NULL pointer.
9683 [Frans Heymans <fheymans@isaserver.be>]
9685 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9687 [Anonymous <nobody@replay.com>]
9689 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9690 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9692 *) Don't blow it for numeric -newkey arguments to apps/req.
9693 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9695 *) Temp key "for export" tests were wrong in s3_srvr.c.
9696 [Anonymous <nobody@replay.com>]
9698 *) Add prototype for temp key callback functions
9699 SSL_CTX_set_tmp_{rsa,dh}_callback().
9702 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9703 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9706 *) X509_name_add_entry() freed the wrong thing after an error.
9707 [Arne Ansper <arne@ats.cyber.ee>]
9709 *) rsa_eay.c would attempt to free a NULL context.
9710 [Arne Ansper <arne@ats.cyber.ee>]
9712 *) BIO_s_socket() had a broken should_retry() on Windoze.
9713 [Arne Ansper <arne@ats.cyber.ee>]
9715 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9716 [Arne Ansper <arne@ats.cyber.ee>]
9718 *) Make sure the already existing X509_STORE->depth variable is initialized
9719 in X509_STORE_new(), but document the fact that this variable is still
9720 unused in the certificate verification process.
9721 [Ralf S. Engelschall]
9723 *) Fix the various library and apps files to free up pkeys obtained from
9724 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9727 *) Fix reference counting in X509_PUBKEY_get(). This makes
9728 demos/maurice/example2.c work, amongst others, probably.
9729 [Steve Henson and Ben Laurie]
9731 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9732 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9733 are no longer created. This way we have a single and consistent command
9734 line interface `openssl <command>', similar to `cvs <command>'.
9735 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9737 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9738 BIT STRING wrapper always have zero unused bits.
9741 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9744 *) Make the top-level INSTALL documentation easier to understand.
9747 *) Makefiles updated to exit if an error occurs in a sub-directory
9748 make (including if user presses ^C) [Paul Sutton]
9750 *) Make Montgomery context stuff explicit in RSA data structure.
9753 *) Fix build order of pem and err to allow for generated pem.h.
9756 *) Fix renumbering bug in X509_NAME_delete_entry().
9759 *) Enhanced the err-ins.pl script so it makes the error library number
9760 global and can add a library name. This is needed for external ASN1 and
9761 other error libraries.
9764 *) Fixed sk_insert which never worked properly.
9767 *) Fix ASN1 macros so they can handle indefinite length construted
9768 EXPLICIT tags. Some non standard certificates use these: they can now
9772 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9773 into a single doc/ssleay.txt bundle. This way the information is still
9774 preserved but no longer messes up this directory. Now it's new room for
9775 the new set of documenation files.
9776 [Ralf S. Engelschall]
9778 *) SETs were incorrectly DER encoded. This was a major pain, because they
9779 shared code with SEQUENCEs, which aren't coded the same. This means that
9780 almost everything to do with SETs or SEQUENCEs has either changed name or
9781 number of arguments.
9782 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9784 *) Fix test data to work with the above.
9787 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9788 was already fixed by Eric for 0.9.1 it seems.
9789 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9791 *) Autodetect FreeBSD3.
9794 *) Fix various bugs in Configure. This affects the following platforms:
9798 unixware-2.0-pentium
9802 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9803 before they are needed.
9806 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9810 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9812 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9813 changed SSLeay to OpenSSL in version strings.
9814 [Ralf S. Engelschall]
9816 *) Some fixups to the top-level documents.
9819 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9820 because the symlink to include/ was missing.
9821 [Ralf S. Engelschall]
9823 *) Incorporated the popular no-RSA/DSA-only patches
9824 which allow to compile a RSA-free SSLeay.
9825 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9827 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9828 when "ssleay" is still not found.
9829 [Ralf S. Engelschall]
9831 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9832 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9834 *) Updated the README file.
9835 [Ralf S. Engelschall]
9837 *) Added various .cvsignore files in the CVS repository subdirs
9838 to make a "cvs update" really silent.
9839 [Ralf S. Engelschall]
9841 *) Recompiled the error-definition header files and added
9842 missing symbols to the Win32 linker tables.
9843 [Ralf S. Engelschall]
9845 *) Cleaned up the top-level documents;
9846 o new files: CHANGES and LICENSE
9847 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9848 o merged COPYRIGHT into LICENSE
9849 o removed obsolete TODO file
9850 o renamed MICROSOFT to INSTALL.W32
9851 [Ralf S. Engelschall]
9853 *) Removed dummy files from the 0.9.1b source tree:
9854 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9855 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9856 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9857 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9858 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9859 [Ralf S. Engelschall]
9861 *) Added various platform portability fixes.
9864 *) The Genesis of the OpenSSL rpject:
9865 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9866 Young and Tim J. Hudson created while they were working for C2Net until
9868 [The OpenSSL Project]
9871 Changes between 0.9.0b and 0.9.1b [not released]
9873 *) Updated a few CA certificates under certs/
9876 *) Changed some BIGNUM api stuff.
9879 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9880 DGUX x86, Linux Alpha, etc.
9883 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9884 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9888 *) Add -strparse option to asn1pars program which parses nested
9890 [Dr Stephen Henson <shenson@bigfoot.com>]
9892 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9895 *) DSA fix for "ca" program.
9898 *) Added "-genkey" option to "dsaparam" program.
9901 *) Added RIPE MD160 (rmd160) message digest.
9904 *) Added -a (all) option to "ssleay version" command.
9907 *) Added PLATFORM define which is the id given to Configure.
9910 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9913 *) Extended the ASN.1 parser routines.
9916 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9919 *) Added a BN_CTX to the BN library.
9922 *) Fixed the weak key values in DES library
9925 *) Changed API in EVP library for cipher aliases.
9928 *) Added support for RC2/64bit cipher.
9931 *) Converted the lhash library to the crypto/mem.c functions.
9934 *) Added more recognized ASN.1 object ids.
9937 *) Added more RSA padding checks for SSL/TLS.
9940 *) Added BIO proxy/filter functionality.
9943 *) Added extra_certs to SSL_CTX which can be used
9944 send extra CA certificates to the client in the CA cert chain sending
9945 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9948 *) Now Fortezza is denied in the authentication phase because
9949 this is key exchange mechanism is not supported by SSLeay at all.
9952 *) Additional PKCS1 checks.
9955 *) Support the string "TLSv1" for all TLS v1 ciphers.
9958 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9959 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9962 *) Fixed a few memory leaks.
9965 *) Fixed various code and comment typos.
9968 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9969 bytes sent in the client random.
9970 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob