5 Changes between 1.0.1j and 1.0.1k [xx XXX xxxx]
7 *) Do not resume sessions on the server if the negotiated protocol
8 version does not match the session's version. Resuming with a different
9 version, while not strictly forbidden by the RFC, is of questionable
10 sanity and breaks all known clients.
11 [David Benjamin, Emilia Käsper]
13 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
14 early CCS messages during renegotiation. (Note that because
15 renegotiation is encrypted, this early CCS was not exploitable.)
18 *) Tighten client-side session ticket handling during renegotiation:
19 ensure that the client only accepts a session ticket if the server sends
20 the extension anew in the ServerHello. Previously, a TLS client would
21 reuse the old extension state and thus accept a session ticket if one was
22 announced in the initial ServerHello.
24 Similarly, ensure that the client requires a session ticket if one
25 was advertised in the ServerHello. Previously, a TLS client would
26 ignore a missing NewSessionTicket message.
29 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
33 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
34 sends a carefully crafted handshake message, to cause OpenSSL to fail
35 to free up to 64k of memory causing a memory leak. This could be
36 exploited in a Denial Of Service attack. This issue affects OpenSSL
37 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
38 whether SRTP is used or configured. Implementations of OpenSSL that
39 have been compiled with OPENSSL_NO_SRTP defined are not affected.
41 The fix was developed by the OpenSSL team.
45 *) Session Ticket Memory Leak.
47 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
48 integrity of that ticket is first verified. In the event of a session
49 ticket integrity check failing, OpenSSL will fail to free memory
50 causing a memory leak. By sending a large number of invalid session
51 tickets an attacker could exploit this issue in a Denial Of Service
56 *) Build option no-ssl3 is incomplete.
58 When OpenSSL is configured with "no-ssl3" as a build option, servers
59 could accept and complete a SSL 3.0 handshake, and clients could be
60 configured to send them.
62 [Akamai and the OpenSSL team]
64 *) Add support for TLS_FALLBACK_SCSV.
65 Client applications doing fallback retries should call
66 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
68 [Adam Langley, Bodo Moeller]
70 *) Add additional DigestInfo checks.
72 Reencode DigestInto in DER and check against the original when
73 verifying RSA signature: this will reject any improperly encoded
74 DigestInfo structures.
76 Note: this is a precautionary measure and no attacks are currently known.
80 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
82 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
83 SRP code can be overrun an internal buffer. Add sanity check that
84 g, A, B < N to SRP code.
86 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
87 Group for discovering this issue.
91 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
92 TLS 1.0 instead of higher protocol versions when the ClientHello message
93 is badly fragmented. This allows a man-in-the-middle attacker to force a
94 downgrade to TLS 1.0 even if both the server and the client support a
95 higher protocol version, by modifying the client's TLS records.
97 Thanks to David Benjamin and Adam Langley (Google) for discovering and
98 researching this issue.
102 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
103 to a denial of service attack. A malicious server can crash the client
104 with a null pointer dereference (read) by specifying an anonymous (EC)DH
105 ciphersuite and sending carefully crafted handshake messages.
107 Thanks to Felix Gröbert (Google) for discovering and researching this
112 *) By sending carefully crafted DTLS packets an attacker could cause openssl
113 to leak memory. This can be exploited through a Denial of Service attack.
114 Thanks to Adam Langley for discovering and researching this issue.
118 *) An attacker can force openssl to consume large amounts of memory whilst
119 processing DTLS handshake messages. This can be exploited through a
120 Denial of Service attack.
121 Thanks to Adam Langley for discovering and researching this issue.
125 *) An attacker can force an error condition which causes openssl to crash
126 whilst processing DTLS packets due to memory being freed twice. This
127 can be exploited through a Denial of Service attack.
128 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
133 *) If a multithreaded client connects to a malicious server using a resumed
134 session and the server sends an ec point format extension it could write
135 up to 255 bytes to freed memory.
137 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
142 *) A malicious server can crash an OpenSSL client with a null pointer
143 dereference (read) by specifying an SRP ciphersuite even though it was not
144 properly negotiated with the client. This can be exploited through a
145 Denial of Service attack.
147 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
148 discovering and researching this issue.
152 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
153 X509_name_oneline, X509_name_print_ex et al. to leak some information
154 from the stack. Applications may be affected if they echo pretty printing
155 output to the attacker.
157 Thanks to Ivan Fratric (Google) for discovering this issue.
159 [Emilia Käsper, and Steve Henson]
161 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
162 for corner cases. (Certain input points at infinity could lead to
163 bogus results, with non-infinity inputs mapped to infinity too.)
166 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
168 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
169 handshake can force the use of weak keying material in OpenSSL
170 SSL/TLS clients and servers.
172 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
173 researching this issue. (CVE-2014-0224)
174 [KIKUCHI Masashi, Steve Henson]
176 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
177 OpenSSL DTLS client the code can be made to recurse eventually crashing
180 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
182 [Imre Rad, Steve Henson]
184 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
185 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
186 client or server. This is potentially exploitable to run arbitrary
187 code on a vulnerable client or server.
189 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
190 [Jüri Aedla, Steve Henson]
192 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
193 are subject to a denial of service attack.
195 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
196 this issue. (CVE-2014-3470)
197 [Felix Gröbert, Ivan Fratric, Steve Henson]
199 *) Harmonize version and its documentation. -f flag is used to display
201 [mancha <mancha1@zoho.com>]
203 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
205 [mancha <mancha1@zoho.com>]
207 *) Fix some double frees. These are not thought to be exploitable.
208 [mancha <mancha1@zoho.com>]
210 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
212 *) A missing bounds check in the handling of the TLS heartbeat extension
213 can be used to reveal up to 64k of memory to a connected client or
216 Thanks for Neel Mehta of Google Security for discovering this bug and to
217 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
218 preparing the fix (CVE-2014-0160)
219 [Adam Langley, Bodo Moeller]
221 *) Fix for the attack described in the paper "Recovering OpenSSL
222 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
223 by Yuval Yarom and Naomi Benger. Details can be obtained from:
224 http://eprint.iacr.org/2014/140
226 Thanks to Yuval Yarom and Naomi Benger for discovering this
227 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
228 [Yuval Yarom and Naomi Benger]
230 *) TLS pad extension: draft-agl-tls-padding-03
232 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
233 TLS client Hello record length value would otherwise be > 255 and
234 less that 512 pad with a dummy extension containing zeroes so it
235 is at least 512 bytes long.
237 [Adam Langley, Steve Henson]
239 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
241 *) Fix for TLS record tampering bug. A carefully crafted invalid
242 handshake could crash OpenSSL with a NULL pointer exception.
243 Thanks to Anton Johansson for reporting this issues.
246 *) Keep original DTLS digest and encryption contexts in retransmission
247 structures so we can use the previous session parameters if they need
248 to be resent. (CVE-2013-6450)
251 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
252 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
253 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
254 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
255 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
256 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
257 [Rob Stradling, Adam Langley]
259 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
261 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
262 supporting platforms or when small records were transferred.
263 [Andy Polyakov, Steve Henson]
265 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
267 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
269 This addresses the flaw in CBC record processing discovered by
270 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
271 at: http://www.isg.rhul.ac.uk/tls/
273 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
274 Security Group at Royal Holloway, University of London
275 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
276 Emilia Käsper for the initial patch.
278 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
280 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
281 ciphersuites which can be exploited in a denial of service attack.
282 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
283 and detecting this bug and to Wolfgang Ettlinger
284 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
288 *) Return an error when checking OCSP signatures when key is NULL.
289 This fixes a DoS attack. (CVE-2013-0166)
292 *) Make openssl verify return errors.
293 [Chris Palmer <palmer@google.com> and Ben Laurie]
295 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
296 the right response is stapled. Also change SSL_get_certificate()
297 so it returns the certificate actually sent.
298 See http://rt.openssl.org/Ticket/Display.html?id=2836.
299 [Rob Stradling <rob.stradling@comodo.com>]
301 *) Fix possible deadlock when decoding public keys.
304 *) Don't use TLS 1.0 record version number in initial client hello
308 Changes between 1.0.1b and 1.0.1c [10 May 2012]
310 *) Sanity check record length before skipping explicit IV in TLS
311 1.2, 1.1 and DTLS to fix DoS attack.
313 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
314 fuzzing as a service testing platform.
318 *) Initialise tkeylen properly when encrypting CMS messages.
319 Thanks to Solar Designer of Openwall for reporting this issue.
322 *) In FIPS mode don't try to use composite ciphers as they are not
326 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
328 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
329 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
330 mean any application compiled against OpenSSL 1.0.0 headers setting
331 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
332 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
333 0x10000000L Any application which was previously compiled against
334 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
335 will need to be recompiled as a result. Letting be results in
336 inability to disable specifically TLS 1.1 and in client context,
337 in unlike event, limit maximum offered version to TLS 1.0 [see below].
340 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
341 disable just protocol X, but all protocols above X *if* there are
342 protocols *below* X still enabled. In more practical terms it means
343 that if application wants to disable TLS1.0 in favor of TLS1.1 and
344 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
345 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
349 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
351 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
352 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
353 in CRYPTO_realloc_clean.
355 Thanks to Tavis Ormandy, Google Security Team, for discovering this
356 issue and to Adam Langley <agl@chromium.org> for fixing it.
358 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
360 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
363 *) Workarounds for some broken servers that "hang" if a client hello
364 record length exceeds 255 bytes.
366 1. Do not use record version number > TLS 1.0 in initial client
367 hello: some (but not all) hanging servers will now work.
368 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
369 the number of ciphers sent in the client hello. This should be
370 set to an even number, such as 50, for example by passing:
371 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
372 Most broken servers should now work.
373 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
374 TLS 1.2 client support entirely.
377 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
380 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
382 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
383 STRING form instead of a DigestInfo.
386 *) The format used for MDC2 RSA signatures is inconsistent between EVP
387 and the RSA_sign/RSA_verify functions. This was made more apparent when
388 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
389 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
390 the correct format in RSA_verify so both forms transparently work.
393 *) Some servers which support TLS 1.0 can choke if we initially indicate
394 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
395 encrypted premaster secret. As a workaround use the maximum pemitted
396 client version in client hello, this should keep such servers happy
397 and still work with previous versions of OpenSSL.
400 *) Add support for TLS/DTLS heartbeats.
401 [Robin Seggelmann <seggelmann@fh-muenster.de>]
403 *) Add support for SCTP.
404 [Robin Seggelmann <seggelmann@fh-muenster.de>]
406 *) Improved PRNG seeding for VOS.
407 [Paul Green <Paul.Green@stratus.com>]
409 *) Extensive assembler packs updates, most notably:
411 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
412 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
413 - x86_64: bit-sliced AES implementation;
414 - ARM: NEON support, contemporary platforms optimizations;
415 - s390x: z196 support;
416 - *: GHASH and GF(2^m) multiplication implementations;
420 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
421 (removal of unnecessary code)
422 [Peter Sylvester <peter.sylvester@edelweb.fr>]
424 *) Add TLS key material exporter from RFC 5705.
427 *) Add DTLS-SRTP negotiation from RFC 5764.
430 *) Add Next Protocol Negotiation,
431 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
432 disabled with a no-npn flag to config or Configure. Code donated
434 [Adam Langley <agl@google.com> and Ben Laurie]
436 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
437 NIST-P256, NIST-P521, with constant-time single point multiplication on
438 typical inputs. Compiler support for the nonstandard type __uint128_t is
439 required to use this (present in gcc 4.4 and later, for 64-bit builds).
440 Code made available under Apache License version 2.0.
442 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
443 line to include this in your build of OpenSSL, and run "make depend" (or
444 "make update"). This enables the following EC_METHODs:
446 EC_GFp_nistp224_method()
447 EC_GFp_nistp256_method()
448 EC_GFp_nistp521_method()
450 EC_GROUP_new_by_curve_name() will automatically use these (while
451 EC_GROUP_new_curve_GFp() currently prefers the more flexible
453 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
455 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
456 all platforms. Move ssize_t definition from e_os.h to the public
457 header file e_os2.h as it now appears in public header file cms.h
460 *) New -sigopt option to the ca, req and x509 utilities. Additional
461 signature parameters can be passed using this option and in
465 *) Add RSA PSS signing function. This will generate and set the
466 appropriate AlgorithmIdentifiers for PSS based on those in the
467 corresponding EVP_MD_CTX structure. No application support yet.
470 *) Support for companion algorithm specific ASN1 signing routines.
471 New function ASN1_item_sign_ctx() signs a pre-initialised
472 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
473 the appropriate parameters.
476 *) Add new algorithm specific ASN1 verification initialisation function
477 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
478 handling will be the same no matter what EVP_PKEY_METHOD is used.
479 Add a PSS handler to support verification of PSS signatures: checked
480 against a number of sample certificates.
483 *) Add signature printing for PSS. Add PSS OIDs.
484 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
486 *) Add algorithm specific signature printing. An individual ASN1 method
487 can now print out signatures instead of the standard hex dump.
489 More complex signatures (e.g. PSS) can print out more meaningful
490 information. Include DSA version that prints out the signature
494 *) Password based recipient info support for CMS library: implementing
498 *) Split password based encryption into PBES2 and PBKDF2 functions. This
499 neatly separates the code into cipher and PBE sections and is required
500 for some algorithms that split PBES2 into separate pieces (such as
504 *) Session-handling fixes:
505 - Fix handling of connections that are resuming with a session ID,
506 but also support Session Tickets.
507 - Fix a bug that suppressed issuing of a new ticket if the client
508 presented a ticket with an expired session.
509 - Try to set the ticket lifetime hint to something reasonable.
510 - Make tickets shorter by excluding irrelevant information.
511 - On the client side, don't ignore renewed tickets.
512 [Adam Langley, Bodo Moeller (Google)]
514 *) Fix PSK session representation.
517 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
519 This work was sponsored by Intel.
522 *) Add GCM support to TLS library. Some custom code is needed to split
523 the IV between the fixed (from PRF) and explicit (from TLS record)
524 portions. This adds all GCM ciphersuites supported by RFC5288 and
525 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
526 add a special AESGCM string for GCM only.
529 *) Expand range of ctrls for AES GCM. Permit setting invocation
530 field on decrypt and retrieval of invocation field only on encrypt.
533 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
534 As required by RFC5289 these ciphersuites cannot be used if for
535 versions of TLS earlier than 1.2.
538 *) For FIPS capable OpenSSL interpret a NULL default public key method
539 as unset and return the appopriate default but do *not* set the default.
540 This means we can return the appopriate method in applications that
541 swicth between FIPS and non-FIPS modes.
544 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
545 ENGINE is used then we cannot handle that in the FIPS module so we
546 keep original code iff non-FIPS operations are allowed.
549 *) Add -attime option to openssl utilities.
550 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
552 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
555 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
556 FIPS EC methods unconditionally for now.
559 *) New build option no-ec2m to disable characteristic 2 code.
562 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
563 all cases can be covered as some introduce binary incompatibilities.
566 *) Redirect RSA operations to FIPS module including keygen,
567 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
570 *) Add similar low level API blocking to ciphers.
573 *) Low level digest APIs are not approved in FIPS mode: any attempt
574 to use these will cause a fatal error. Applications that *really* want
575 to use them can use the private_* version instead.
578 *) Redirect cipher operations to FIPS module for FIPS builds.
581 *) Redirect digest operations to FIPS module for FIPS builds.
584 *) Update build system to add "fips" flag which will link in fipscanister.o
585 for static and shared library builds embedding a signature if needed.
588 *) Output TLS supported curves in preference order instead of numerical
589 order. This is currently hardcoded for the highest order curves first.
590 This should be configurable so applications can judge speed vs strength.
593 *) Add TLS v1.2 server support for client authentication.
596 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
600 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
601 FIPS modules versions.
604 *) Add TLS v1.2 client side support for client authentication. Keep cache
605 of handshake records longer as we don't know the hash algorithm to use
606 until after the certificate request message is received.
609 *) Initial TLS v1.2 client support. Add a default signature algorithms
610 extension including all the algorithms we support. Parse new signature
611 format in client key exchange. Relax some ECC signing restrictions for
612 TLS v1.2 as indicated in RFC5246.
615 *) Add server support for TLS v1.2 signature algorithms extension. Switch
616 to new signature format when needed using client digest preference.
617 All server ciphersuites should now work correctly in TLS v1.2. No client
618 support yet and no support for client certificates.
621 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
622 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
623 ciphersuites. At present only RSA key exchange ciphersuites work with
624 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
625 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
626 and version checking.
629 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
630 with this defined it will not be affected by any changes to ssl internal
631 structures. Add several utility functions to allow openssl application
632 to work with OPENSSL_NO_SSL_INTERN defined.
636 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
638 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
641 *) Permit abbreviated handshakes when renegotiating using the function
642 SSL_renegotiate_abbreviated().
643 [Robin Seggelmann <seggelmann@fh-muenster.de>]
645 *) Add call to ENGINE_register_all_complete() to
646 ENGINE_load_builtin_engines(), so some implementations get used
647 automatically instead of needing explicit application support.
650 *) Add support for TLS key exporter as described in RFC5705.
651 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
653 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
654 a few changes are required:
656 Add SSL_OP_NO_TLSv1_1 flag.
658 Update version checking logic to handle version 1.1.
659 Add explicit IV handling (ported from DTLS code).
660 Add command line options to s_client/s_server.
663 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
665 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
667 This addresses the flaw in CBC record processing discovered by
668 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
669 at: http://www.isg.rhul.ac.uk/tls/
671 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
672 Security Group at Royal Holloway, University of London
673 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
674 Emilia Käsper for the initial patch.
676 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
678 *) Return an error when checking OCSP signatures when key is NULL.
679 This fixes a DoS attack. (CVE-2013-0166)
682 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
683 the right response is stapled. Also change SSL_get_certificate()
684 so it returns the certificate actually sent.
685 See http://rt.openssl.org/Ticket/Display.html?id=2836.
687 [Rob Stradling <rob.stradling@comodo.com>]
689 *) Fix possible deadlock when decoding public keys.
692 Changes between 1.0.0i and 1.0.0j [10 May 2012]
694 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
697 *) Sanity check record length before skipping explicit IV in DTLS
700 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
701 fuzzing as a service testing platform.
705 *) Initialise tkeylen properly when encrypting CMS messages.
706 Thanks to Solar Designer of Openwall for reporting this issue.
709 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
711 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
712 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
713 in CRYPTO_realloc_clean.
715 Thanks to Tavis Ormandy, Google Security Team, for discovering this
716 issue and to Adam Langley <agl@chromium.org> for fixing it.
718 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
720 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
722 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
723 in CMS and PKCS7 code. When RSA decryption fails use a random key for
724 content decryption and always return the same error. Note: this attack
725 needs on average 2^20 messages so it only affects automated senders. The
726 old behaviour can be reenabled in the CMS code by setting the
727 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
728 an MMA defence is not necessary.
729 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
730 this issue. (CVE-2012-0884)
733 *) Fix CVE-2011-4619: make sure we really are receiving a
734 client hello before rejecting multiple SGC restarts. Thanks to
735 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
738 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
740 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
741 Thanks to Antonio Martin, Enterprise Secure Access Research and
742 Development, Cisco Systems, Inc. for discovering this bug and
743 preparing a fix. (CVE-2012-0050)
746 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
748 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
749 of the Vaudenay padding oracle attack on CBC mode encryption
750 which enables an efficient plaintext recovery attack against
751 the OpenSSL implementation of DTLS. Their attack exploits timing
752 differences arising during decryption processing. A research
753 paper describing this attack can be found at:
754 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
755 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
756 Security Group at Royal Holloway, University of London
757 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
758 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
759 for preparing the fix. (CVE-2011-4108)
760 [Robin Seggelmann, Michael Tuexen]
762 *) Clear bytes used for block padding of SSL 3.0 records.
764 [Adam Langley (Google)]
766 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
767 Kadianakis <desnacked@gmail.com> for discovering this issue and
768 Adam Langley for preparing the fix. (CVE-2011-4619)
769 [Adam Langley (Google)]
771 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
772 [Andrey Kulikov <amdeich@gmail.com>]
774 *) Prevent malformed RFC3779 data triggering an assertion failure.
775 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
776 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
777 [Rob Austein <sra@hactrn.net>]
779 *) Improved PRNG seeding for VOS.
780 [Paul Green <Paul.Green@stratus.com>]
782 *) Fix ssl_ciph.c set-up race.
783 [Adam Langley (Google)]
785 *) Fix spurious failures in ecdsatest.c.
786 [Emilia Käsper (Google)]
788 *) Fix the BIO_f_buffer() implementation (which was mixing different
789 interpretations of the '..._len' fields).
790 [Adam Langley (Google)]
792 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
793 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
794 threads won't reuse the same blinding coefficients.
796 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
797 lock to call BN_BLINDING_invert_ex, and avoids one use of
798 BN_BLINDING_update for each BN_BLINDING structure (previously,
799 the last update always remained unused).
800 [Emilia Käsper (Google)]
802 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
803 [Bob Buckholz (Google)]
805 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
807 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
808 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
809 [Kaspar Brand <ossl@velox.ch>]
811 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
812 for multi-threaded use of ECDH. (CVE-2011-3210)
813 [Adam Langley (Google)]
815 *) Fix x509_name_ex_d2i memory leak on bad inputs.
818 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
819 signature public key algorithm by using OID xref utilities instead.
820 Before this you could only use some ECC ciphersuites with SHA1 only.
823 *) Add protection against ECDSA timing attacks as mentioned in the paper
824 by Billy Bob Brumley and Nicola Tuveri, see:
826 http://eprint.iacr.org/2011/232.pdf
828 [Billy Bob Brumley and Nicola Tuveri]
830 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
832 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
833 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
835 *) Fix bug in string printing code: if *any* escaping is enabled we must
836 escape the escape character (backslash) or the resulting string is
840 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
842 *) Disable code workaround for ancient and obsolete Netscape browsers
843 and servers: an attacker can use it in a ciphersuite downgrade attack.
844 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
847 *) Fixed J-PAKE implementation error, originally discovered by
848 Sebastien Martini, further info and confirmation from Stefan
849 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
852 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
854 *) Fix extension code to avoid race conditions which can result in a buffer
855 overrun vulnerability: resumed sessions must not be modified as they can
856 be shared by multiple threads. CVE-2010-3864
859 *) Fix WIN32 build system to correctly link an ENGINE directory into
863 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
865 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
867 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
869 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
871 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
872 context. The operation can be customised via the ctrl mechanism in
873 case ENGINEs want to include additional functionality.
876 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
879 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
880 output hashes compatible with older versions of OpenSSL.
881 [Willy Weisz <weisz@vcpc.univie.ac.at>]
883 *) Fix compression algorithm handling: if resuming a session use the
884 compression algorithm of the resumed session instead of determining
885 it from client hello again. Don't allow server to change algorithm.
888 *) Add load_crls() function to apps tidying load_certs() too. Add option
889 to verify utility to allow additional CRLs to be included.
892 *) Update OCSP request code to permit adding custom headers to the request:
893 some responders need this.
896 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
898 [Julia Lawall <julia@diku.dk>]
900 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
901 needlessly dereferenced structures, used obsolete functions and
902 didn't handle all updated verify codes correctly.
905 *) Disable MD2 in the default configuration.
908 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
909 indicate the initial BIO being pushed or popped. This makes it possible
910 to determine whether the BIO is the one explicitly called or as a result
911 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
912 it handles reference counts correctly and doesn't zero out the I/O bio
913 when it is not being explicitly popped. WARNING: applications which
914 included workarounds for the old buggy behaviour will need to be modified
915 or they could free up already freed BIOs.
918 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
919 renaming to all platforms (within the 0.9.8 branch, this was
920 done conditionally on Netware platforms to avoid a name clash).
921 [Guenter <lists@gknw.net>]
923 *) Add ECDHE and PSK support to DTLS.
924 [Michael Tuexen <tuexen@fh-muenster.de>]
926 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
930 *) Add "missing" function EVP_MD_flags() (without this the only way to
931 retrieve a digest flags is by accessing the structure directly. Update
932 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
933 or cipher is registered as in the "from" argument. Print out all
934 registered digests in the dgst usage message instead of manually
935 attempting to work them out.
938 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
939 this allows the use of compression and extensions. Change default cipher
940 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
941 by default unless an application cipher string requests it.
944 *) Alter match criteria in PKCS12_parse(). It used to try to use local
945 key ids to find matching certificates and keys but some PKCS#12 files
946 don't follow the (somewhat unwritten) rules and this strategy fails.
947 Now just gather all certificates together and the first private key
948 then look for the first certificate that matches the key.
951 *) Support use of registered digest and cipher names for dgst and cipher
952 commands instead of having to add each one as a special case. So now
959 openssl dgst -sha256 foo
961 and this works for ENGINE based algorithms too.
965 *) Update Gost ENGINE to support parameter files.
966 [Victor B. Wagner <vitus@cryptocom.ru>]
968 *) Support GeneralizedTime in ca utility.
969 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
971 *) Enhance the hash format used for certificate directory links. The new
972 form uses the canonical encoding (meaning equivalent names will work
973 even if they aren't identical) and uses SHA1 instead of MD5. This form
974 is incompatible with the older format and as a result c_rehash should
975 be used to rebuild symbolic links.
978 *) Make PKCS#8 the default write format for private keys, replacing the
979 traditional format. This form is standardised, more secure and doesn't
980 include an implicit MD5 dependency.
983 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
984 committed to OpenSSL should pass this lot as a minimum.
987 *) Add session ticket override functionality for use by EAP-FAST.
988 [Jouni Malinen <j@w1.fi>]
990 *) Modify HMAC functions to return a value. Since these can be implemented
991 in an ENGINE errors can occur.
994 *) Type-checked OBJ_bsearch_ex.
997 *) Type-checked OBJ_bsearch. Also some constification necessitated
998 by type-checking. Still to come: TXT_DB, bsearch(?),
999 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1003 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1004 seconds to a tm structure directly, instead of going through OS
1005 specific date routines. This avoids any issues with OS routines such
1006 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1007 and X509_time_adj_ex() to cover the extended range. The existing
1008 X509_time_adj() is still usable and will no longer have any date issues.
1011 *) Delta CRL support. New use deltas option which will attempt to locate
1012 and search any appropriate delta CRLs available.
1014 This work was sponsored by Google.
1017 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1018 code and add additional score elements. Validate alternate CRL paths
1019 as part of the CRL checking and indicate a new error "CRL path validation
1020 error" in this case. Applications wanting additional details can use
1021 the verify callback and check the new "parent" field. If this is not
1022 NULL CRL path validation is taking place. Existing applications wont
1023 see this because it requires extended CRL support which is off by
1026 This work was sponsored by Google.
1029 *) Support for freshest CRL extension.
1031 This work was sponsored by Google.
1034 *) Initial indirect CRL support. Currently only supported in the CRLs
1035 passed directly and not via lookup. Process certificate issuer
1036 CRL entry extension and lookup CRL entries by bother issuer name
1037 and serial number. Check and process CRL issuer entry in IDP extension.
1039 This work was sponsored by Google.
1042 *) Add support for distinct certificate and CRL paths. The CRL issuer
1043 certificate is validated separately in this case. Only enabled if
1044 an extended CRL support flag is set: this flag will enable additional
1045 CRL functionality in future.
1047 This work was sponsored by Google.
1050 *) Add support for policy mappings extension.
1052 This work was sponsored by Google.
1055 *) Fixes to pathlength constraint, self issued certificate handling,
1056 policy processing to align with RFC3280 and PKITS tests.
1058 This work was sponsored by Google.
1061 *) Support for name constraints certificate extension. DN, email, DNS
1062 and URI types are currently supported.
1064 This work was sponsored by Google.
1067 *) To cater for systems that provide a pointer-based thread ID rather
1068 than numeric, deprecate the current numeric thread ID mechanism and
1069 replace it with a structure and associated callback type. This
1070 mechanism allows a numeric "hash" to be extracted from a thread ID in
1071 either case, and on platforms where pointers are larger than 'long',
1072 mixing is done to help ensure the numeric 'hash' is usable even if it
1073 can't be guaranteed unique. The default mechanism is to use "&errno"
1074 as a pointer-based thread ID to distinguish between threads.
1076 Applications that want to provide their own thread IDs should now use
1077 CRYPTO_THREADID_set_callback() to register a callback that will call
1078 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1080 Note that ERR_remove_state() is now deprecated, because it is tied
1081 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1082 to free the current thread's error state should be replaced by
1083 ERR_remove_thread_state(NULL).
1085 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1086 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1087 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1088 application was previously providing a numeric thread callback that
1089 was inappropriate for distinguishing threads, then uniqueness might
1090 have been obtained with &errno that happened immediately in the
1091 intermediate development versions of OpenSSL; this is no longer the
1092 case, the numeric thread callback will now override the automatic use
1094 [Geoff Thorpe, with help from Bodo Moeller]
1096 *) Initial support for different CRL issuing certificates. This covers a
1097 simple case where the self issued certificates in the chain exist and
1098 the real CRL issuer is higher in the existing chain.
1100 This work was sponsored by Google.
1103 *) Removed effectively defunct crypto/store from the build.
1106 *) Revamp of STACK to provide stronger type-checking. Still to come:
1107 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1108 ASN1_STRING, CONF_VALUE.
1111 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1112 RAM on SSL connections. This option can save about 34k per idle SSL.
1115 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1116 STACK, TXT_DB, bsearch, qsort.
1119 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1120 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1121 support for data, signedData, compressedData, digestedData and
1122 encryptedData, envelopedData types included. Scripts to check against
1123 RFC4134 examples draft and interop and consistency checks of many
1124 content types and variants.
1127 *) Add options to enc utility to support use of zlib compression BIO.
1130 *) Extend mk1mf to support importing of options and assembly language
1131 files from Configure script, currently only included in VC-WIN32.
1132 The assembly language rules can now optionally generate the source
1133 files from the associated perl scripts.
1136 *) Implement remaining functionality needed to support GOST ciphersuites.
1137 Interop testing has been performed using CryptoPro implementations.
1138 [Victor B. Wagner <vitus@cryptocom.ru>]
1140 *) s390x assembler pack.
1143 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1147 *) Implement Opaque PRF Input TLS extension as specified in
1148 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1149 official specification yet and no extension type assignment by
1150 IANA exists, this extension (for now) will have to be explicitly
1151 enabled when building OpenSSL by providing the extension number
1152 to use. For example, specify an option
1154 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1156 to the "config" or "Configure" script to enable the extension,
1157 assuming extension number 0x9527 (which is a completely arbitrary
1158 and unofficial assignment based on the MD5 hash of the Internet
1159 Draft). Note that by doing so, you potentially lose
1160 interoperability with other TLS implementations since these might
1161 be using the same extension number for other purposes.
1163 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1164 opaque PRF input value to use in the handshake. This will create
1165 an interal copy of the length-'len' string at 'src', and will
1166 return non-zero for success.
1168 To get more control and flexibility, provide a callback function
1171 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1172 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1176 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1179 Callback function 'cb' will be called in handshakes, and is
1180 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1181 Argument 'arg' is for application purposes (the value as given to
1182 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1183 be provided to the callback function). The callback function
1184 has to return non-zero to report success: usually 1 to use opaque
1185 PRF input just if possible, or 2 to enforce use of the opaque PRF
1186 input. In the latter case, the library will abort the handshake
1187 if opaque PRF input is not successfully negotiated.
1189 Arguments 'peerinput' and 'len' given to the callback function
1190 will always be NULL and 0 in the case of a client. A server will
1191 see the client's opaque PRF input through these variables if
1192 available (NULL and 0 otherwise). Note that if the server
1193 provides an opaque PRF input, the length must be the same as the
1194 length of the client's opaque PRF input.
1196 Note that the callback function will only be called when creating
1197 a new session (session resumption can resume whatever was
1198 previously negotiated), and will not be called in SSL 2.0
1199 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1200 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1201 for applications that need to enforce opaque PRF input.
1205 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1208 [Victor B. Wagner <vitus@cryptocom.ru>]
1210 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1211 RFC4507bis. The encrypted ticket format is an encrypted encoded
1212 SSL_SESSION structure, that way new session features are automatically
1215 If a client application caches session in an SSL_SESSION structure
1216 support is transparent because tickets are now stored in the encoded
1219 The SSL_CTX structure automatically generates keys for ticket
1220 protection in servers so again support should be possible
1221 with no application modification.
1223 If a client or server wishes to disable RFC4507 support then the option
1224 SSL_OP_NO_TICKET can be set.
1226 Add a TLS extension debugging callback to allow the contents of any client
1227 or server extensions to be examined.
1229 This work was sponsored by Google.
1232 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1233 OpenSSL should now compile cleanly on gcc 4.2
1234 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1236 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1237 support including streaming MAC support: this is required for GOST
1238 ciphersuite support.
1239 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1241 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1242 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1243 to output in BER and PEM format.
1246 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1247 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1248 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1249 ENGINE support for HMAC keys which are unextractable. New -mac and
1250 -macopt options to dgst utility.
1253 *) New option -sigopt to dgst utility. Update dgst to use
1254 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1255 alternative signing paramaters such as X9.31 or PSS in the dgst
1259 *) Change ssl_cipher_apply_rule(), the internal function that does
1260 the work each time a ciphersuite string requests enabling
1261 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1262 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1263 the order of disabled ciphersuites such that those ciphersuites
1264 that most recently went from enabled to disabled not only stay
1265 in order with respect to each other, but also have higher priority
1266 than other disabled ciphersuites the next time ciphersuites are
1269 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1270 the same ciphersuites as with "HIGH" alone, but in a specific
1271 order where the PSK ciphersuites come first (since they are the
1272 most recently disabled ciphersuites when "HIGH" is parsed).
1274 Also, change ssl_create_cipher_list() (using this new
1275 funcionality) such that between otherwise identical
1276 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1280 *) Change ssl_create_cipher_list() so that it automatically
1281 arranges the ciphersuites in reasonable order before starting
1282 to process the rule string. Thus, the definition for "DEFAULT"
1283 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1284 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1285 This makes it much easier to arrive at a reasonable default order
1286 in applications for which anonymous ciphers are OK (meaning
1287 that you can't actually use DEFAULT).
1288 [Bodo Moeller; suggested by Victor Duchovni]
1290 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1291 processing) into multiple integers instead of setting
1292 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1293 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1294 (These masks as well as the individual bit definitions are hidden
1295 away into the non-exported interface ssl/ssl_locl.h, so this
1296 change to the definition of the SSL_CIPHER structure shouldn't
1297 affect applications.) This give us more bits for each of these
1298 categories, so there is no longer a need to coagulate AES128 and
1299 AES256 into a single algorithm bit, and to coagulate Camellia128
1300 and Camellia256 into a single algorithm bit, which has led to all
1303 Thus, among other things, the kludge introduced in 0.9.7m and
1304 0.9.8e for masking out AES256 independently of AES128 or masking
1305 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1307 With the change, we also introduce new ciphersuite aliases that
1308 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1312 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1313 Use the leftmost N bytes of the signature input if the input is
1314 larger than the prime q (with N being the size in bytes of q).
1317 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1318 it yet and it is largely untested.
1321 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1324 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1325 some compilers (gcc 4.2 and later) reject their use. Safestack is
1326 reimplemented. Update ASN1 to avoid use of legacy functions.
1329 *) Win32/64 targets are linked with Winsock2.
1332 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1333 to external functions. This can be used to increase CRL handling
1334 efficiency especially when CRLs are very large by (for example) storing
1335 the CRL revoked certificates in a database.
1338 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1339 new CRLs added to a directory can be used. New command line option
1340 -verify_return_error to s_client and s_server. This causes real errors
1341 to be returned by the verify callback instead of carrying on no matter
1342 what. This reflects the way a "real world" verify callback would behave.
1345 *) GOST engine, supporting several GOST algorithms and public key formats.
1346 Kindly donated by Cryptocom.
1349 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1350 partitioned by DP are handled but no indirect CRL or reason partitioning
1351 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1352 selected via a scoring technique which handles IDP and AKID in CRLs.
1355 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1356 will ultimately be used for all verify operations: this will remove the
1357 X509_STORE dependency on certificate verification and allow alternative
1358 lookup methods. X509_STORE based implementations of these two callbacks.
1361 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1362 Modify get_crl() to find a valid (unexpired) CRL if possible.
1365 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1366 this would be called X509_CRL_cmp() but that name is already used by
1367 a function that just compares CRL issuer names. Cache several CRL
1368 extensions in X509_CRL structure and cache CRLDP in X509.
1371 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1372 this maps equivalent X509_NAME structures into a consistent structure.
1373 Name comparison can then be performed rapidly using memcmp().
1376 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1380 *) Allow digests to supply their own micalg string for S/MIME type using
1381 the ctrl EVP_MD_CTRL_MICALG.
1384 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1385 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1386 ctrl. It can then customise the structure before and/or after signing
1390 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1391 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1392 to free up any added signature OIDs.
1395 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1396 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1397 digest and cipher tables. New options added to openssl utility:
1398 list-message-digest-algorithms and list-cipher-algorithms.
1401 *) Change the array representation of binary polynomials: the list
1402 of degrees of non-zero coefficients is now terminated with -1.
1403 Previously it was terminated with 0, which was also part of the
1404 value; thus, the array representation was not applicable to
1405 polynomials where t^0 has coefficient zero. This change makes
1406 the array representation useful in a more general context.
1409 *) Various modifications and fixes to SSL/TLS cipher string
1410 handling. For ECC, the code now distinguishes between fixed ECDH
1411 with RSA certificates on the one hand and with ECDSA certificates
1412 on the other hand, since these are separate ciphersuites. The
1413 unused code for Fortezza ciphersuites has been removed.
1415 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1416 (not "ECDHE"). For consistency with the code for DH
1417 certificates, use of ECDH certificates is now considered ECDH
1418 authentication, not RSA or ECDSA authentication (the latter is
1419 merely the CA's signing algorithm and not actively used in the
1422 The temporary ciphersuite alias "ECCdraft" is no longer
1423 available, and ECC ciphersuites are no longer excluded from "ALL"
1424 and "DEFAULT". The following aliases now exist for RFC 4492
1425 ciphersuites, most of these by analogy with the DH case:
1427 kECDHr - ECDH cert, signed with RSA
1428 kECDHe - ECDH cert, signed with ECDSA
1429 kECDH - ECDH cert (signed with either RSA or ECDSA)
1430 kEECDH - ephemeral ECDH
1431 ECDH - ECDH cert or ephemeral ECDH
1437 AECDH - anonymous ECDH
1438 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1442 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1443 Use correct micalg parameters depending on digest(s) in signed message.
1446 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1447 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1450 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1451 an engine to register a method. Add ENGINE lookups for methods and
1452 functional reference processing.
1455 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1456 EVP_{Sign,Verify}* which allow an application to customise the signature
1460 *) New -resign option to smime utility. This adds one or more signers
1461 to an existing PKCS#7 signedData structure. Also -md option to use an
1462 alternative message digest algorithm for signing.
1465 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1466 create PKCS7 structures containing multiple signers. Update smime
1467 application to support multiple signers.
1470 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1474 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1475 Reorganize PBE internals to lookup from a static table using NIDs,
1476 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1477 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1478 PRF which will be automatically used with PBES2.
1481 *) Replace the algorithm specific calls to generate keys in "req" with the
1485 *) Update PKCS#7 enveloped data routines to use new API. This is now
1486 supported by any public key method supporting the encrypt operation. A
1487 ctrl is added to allow the public key algorithm to examine or modify
1488 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1492 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1493 a default digest type to use. In most cases this will be SHA1 but some
1494 algorithms (such as GOST) need to specify an alternative digest. The
1495 return value indicates how strong the prefernce is 1 means optional and
1496 2 is mandatory (that is it is the only supported type). Modify
1497 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1498 use the default md. Update openssl utilities to use the default digest
1499 type for signing if it is not explicitly indicated.
1502 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1503 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1504 signing method from the key type. This effectively removes the link
1505 between digests and public key types.
1508 *) Add an OID cross reference table and utility functions. Its purpose is to
1509 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1510 rsaEncryption. This will allow some of the algorithm specific hackery
1511 needed to use the correct OID to be removed.
1514 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1515 structures for PKCS7_sign(). They are now set up by the relevant public
1519 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1522 *) Add support for key derivation (agreement) in the API, DH method and
1526 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1527 public and private key formats. As a side effect these add additional
1528 command line functionality not previously available: DSA signatures can be
1529 generated and verified using pkeyutl and DH key support and generation in
1534 [Oliver Tappe <zooey@hirschkaefer.de>]
1536 *) New make target "install_html_docs" installs HTML renditions of the
1538 [Oliver Tappe <zooey@hirschkaefer.de>]
1540 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1541 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1542 support key and parameter generation and add initial key generation
1543 functionality for RSA.
1546 *) Add functions for main EVP_PKEY_method operations. The undocumented
1547 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1548 EVP_PKEY_{encrypt,decrypt}_old.
1551 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1552 key API, doesn't do much yet.
1555 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1556 public key algorithms. New option to openssl utility:
1557 "list-public-key-algorithms" to print out info.
1560 *) Implement the Supported Elliptic Curves Extension for
1561 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1564 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1565 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1568 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1569 utilities such as rsa, dsa, dsaparam etc except they process any key
1573 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1574 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1575 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1579 *) Initial support for pluggable public key ASN1.
1580 De-spaghettify the public key ASN1 handling. Move public and private
1581 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1582 algorithm specific handling to a single module within the relevant
1583 algorithm directory. Add functions to allow (near) opaque processing
1584 of public and private key structures.
1587 *) Implement the Supported Point Formats Extension for
1588 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1591 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1592 for the psk identity [hint] and the psk callback functions to the
1593 SSL_SESSION, SSL and SSL_CTX structure.
1596 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1600 SSL_CTX_use_psk_identity_hint
1601 SSL_get_psk_identity_hint
1602 SSL_get_psk_identity
1603 SSL_use_psk_identity_hint
1605 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1607 *) Add RFC 3161 compliant time stamp request creation, response generation
1608 and response verification functionality.
1609 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1611 *) Add initial support for TLS extensions, specifically for the server_name
1612 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1613 have new members for a host name. The SSL data structure has an
1614 additional member SSL_CTX *initial_ctx so that new sessions can be
1615 stored in that context to allow for session resumption, even after the
1616 SSL has been switched to a new SSL_CTX in reaction to a client's
1617 server_name extension.
1619 New functions (subject to change):
1621 SSL_get_servername()
1622 SSL_get_servername_type()
1625 New CTRL codes and macros (subject to change):
1627 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1628 - SSL_CTX_set_tlsext_servername_callback()
1629 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1630 - SSL_CTX_set_tlsext_servername_arg()
1631 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1633 openssl s_client has a new '-servername ...' option.
1635 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1636 '-key2 ...', '-servername_fatal' (subject to change). This allows
1637 testing the HostName extension for a specific single host name ('-cert'
1638 and '-key' remain fallbacks for handshakes without HostName
1639 negotiation). If the unrecogninzed_name alert has to be sent, this by
1640 default is a warning; it becomes fatal with the '-servername_fatal'
1643 [Peter Sylvester, Remy Allais, Christophe Renou]
1645 *) Whirlpool hash implementation is added.
1648 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1649 bn(64,32). Because of instruction set limitations it doesn't have
1650 any negative impact on performance. This was done mostly in order
1651 to make it possible to share assembler modules, such as bn_mul_mont
1652 implementations, between 32- and 64-bit builds without hassle.
1655 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1656 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1660 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1661 dedicated Montgomery multiplication procedure, is introduced.
1662 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1663 "64-bit" performance on certain 32-bit targets.
1666 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1667 in SSL structures. New SSL ctrl to set maximum send fragment size.
1668 Save memory by seeting the I/O buffer sizes dynamically instead of
1669 using the maximum available value.
1672 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1673 in addition to the text details.
1676 *) Very, very preliminary EXPERIMENTAL support for printing of general
1677 ASN1 structures. This currently produces rather ugly output and doesn't
1678 handle several customised structures at all.
1681 *) Integrated support for PVK file format and some related formats such
1682 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1683 these in the 'rsa' and 'dsa' utilities.
1686 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1689 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1690 place for the (very old) "NETSCAPE" format certificates which are now
1691 handled using new ASN1 code equivalents.
1694 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1695 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1696 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1699 *) Modify CRL distribution points extension code to print out previously
1700 unsupported fields. Enhance extension setting code to allow setting of
1704 *) Add print and set support for Issuing Distribution Point CRL extension.
1707 *) Change 'Configure' script to enable Camellia by default.
1710 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
1712 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1714 This addresses the flaw in CBC record processing discovered by
1715 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1716 at: http://www.isg.rhul.ac.uk/tls/
1718 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1719 Security Group at Royal Holloway, University of London
1720 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1721 Emilia Käsper for the initial patch.
1723 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1725 *) Return an error when checking OCSP signatures when key is NULL.
1726 This fixes a DoS attack. (CVE-2013-0166)
1729 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1730 the right response is stapled. Also change SSL_get_certificate()
1731 so it returns the certificate actually sent.
1732 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1733 (This is a backport)
1734 [Rob Stradling <rob.stradling@comodo.com>]
1736 *) Fix possible deadlock when decoding public keys.
1739 Changes between 0.9.8w and 0.9.8x [10 May 2012]
1741 *) Sanity check record length before skipping explicit IV in DTLS
1744 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1745 fuzzing as a service testing platform.
1749 *) Initialise tkeylen properly when encrypting CMS messages.
1750 Thanks to Solar Designer of Openwall for reporting this issue.
1753 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
1755 *) The fix for CVE-2012-2110 did not take into account that the
1756 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
1757 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
1758 rejecting negative len parameter. (CVE-2012-2131)
1759 [Tomas Hoger <thoger@redhat.com>]
1761 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
1763 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1764 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1765 in CRYPTO_realloc_clean.
1767 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1768 issue and to Adam Langley <agl@chromium.org> for fixing it.
1770 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1772 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
1774 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1775 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1776 content decryption and always return the same error. Note: this attack
1777 needs on average 2^20 messages so it only affects automated senders. The
1778 old behaviour can be reenabled in the CMS code by setting the
1779 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1780 an MMA defence is not necessary.
1781 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1782 this issue. (CVE-2012-0884)
1785 *) Fix CVE-2011-4619: make sure we really are receiving a
1786 client hello before rejecting multiple SGC restarts. Thanks to
1787 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1790 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1792 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1793 Thanks to Antonio Martin, Enterprise Secure Access Research and
1794 Development, Cisco Systems, Inc. for discovering this bug and
1795 preparing a fix. (CVE-2012-0050)
1798 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1800 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1801 of the Vaudenay padding oracle attack on CBC mode encryption
1802 which enables an efficient plaintext recovery attack against
1803 the OpenSSL implementation of DTLS. Their attack exploits timing
1804 differences arising during decryption processing. A research
1805 paper describing this attack can be found at:
1806 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1807 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1808 Security Group at Royal Holloway, University of London
1809 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1810 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1811 for preparing the fix. (CVE-2011-4108)
1812 [Robin Seggelmann, Michael Tuexen]
1814 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1815 [Ben Laurie, Kasper <ekasper@google.com>]
1817 *) Clear bytes used for block padding of SSL 3.0 records.
1819 [Adam Langley (Google)]
1821 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1822 Kadianakis <desnacked@gmail.com> for discovering this issue and
1823 Adam Langley for preparing the fix. (CVE-2011-4619)
1824 [Adam Langley (Google)]
1826 *) Prevent malformed RFC3779 data triggering an assertion failure.
1827 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1828 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1829 [Rob Austein <sra@hactrn.net>]
1831 *) Fix ssl_ciph.c set-up race.
1832 [Adam Langley (Google)]
1834 *) Fix spurious failures in ecdsatest.c.
1835 [Emilia Käsper (Google)]
1837 *) Fix the BIO_f_buffer() implementation (which was mixing different
1838 interpretations of the '..._len' fields).
1839 [Adam Langley (Google)]
1841 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1842 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1843 threads won't reuse the same blinding coefficients.
1845 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1846 lock to call BN_BLINDING_invert_ex, and avoids one use of
1847 BN_BLINDING_update for each BN_BLINDING structure (previously,
1848 the last update always remained unused).
1849 [Emilia Käsper (Google)]
1851 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1852 for multi-threaded use of ECDH.
1853 [Adam Langley (Google)]
1855 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1858 *) Add protection against ECDSA timing attacks as mentioned in the paper
1859 by Billy Bob Brumley and Nicola Tuveri, see:
1861 http://eprint.iacr.org/2011/232.pdf
1863 [Billy Bob Brumley and Nicola Tuveri]
1865 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1867 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1868 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1870 *) Fix bug in string printing code: if *any* escaping is enabled we must
1871 escape the escape character (backslash) or the resulting string is
1875 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1877 *) Disable code workaround for ancient and obsolete Netscape browsers
1878 and servers: an attacker can use it in a ciphersuite downgrade attack.
1879 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1882 *) Fixed J-PAKE implementation error, originally discovered by
1883 Sebastien Martini, further info and confirmation from Stefan
1884 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1887 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1889 *) Fix extension code to avoid race conditions which can result in a buffer
1890 overrun vulnerability: resumed sessions must not be modified as they can
1891 be shared by multiple threads. CVE-2010-3864
1894 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1897 *) Don't reencode certificate when calculating signature: cache and use
1898 the original encoding instead. This makes signature verification of
1899 some broken encodings work correctly.
1902 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1903 is also one of the inputs.
1904 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1906 *) Don't repeatedly append PBE algorithms to table if they already exist.
1907 Sort table on each new add. This effectively makes the table read only
1908 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1912 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1914 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1917 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1918 access or freeing data twice (CVE-2010-0742)
1919 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1921 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1922 common in certificates and some applications which only call
1923 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1927 Reduce copying into .apps and .test in makevms.com
1928 Don't try to use blank CA certificate in CA.com
1929 Allow use of C files from original directories in maketests.com
1930 [Steven M. Schweda" <sms@antinode.info>]
1932 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1934 *) When rejecting SSL/TLS records due to an incorrect version number, never
1935 update s->server with a new major version number. As of
1936 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1937 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1938 the previous behavior could result in a read attempt at NULL when
1939 receiving specific incorrect SSL/TLS records once record payload
1940 protection is active. (CVE-2010-0740)
1941 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1943 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1944 could be crashed if the relevant tables were not present (e.g. chrooted).
1945 [Tomas Hoger <thoger@redhat.com>]
1947 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1949 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1950 [Martin Olsson, Neel Mehta]
1952 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1953 accommodate for stack sorting, always a write lock!).
1956 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1957 excessive delays in the RAND_poll(): over a minute. As a workaround
1958 include a time check in the inner Heap32Next loop too.
1961 *) The code that handled flushing of data in SSL/TLS originally used the
1962 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1963 the problem outlined in PR#1949. The fix suggested there however can
1964 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1965 of Apache). So instead simplify the code to flush unconditionally.
1966 This should be fine since flushing with no data to flush is a no op.
1969 *) Handle TLS versions 2.0 and later properly and correctly use the
1970 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1971 off ancient servers have a habit of sticking around for a while...
1974 *) Modify compression code so it frees up structures without using the
1975 ex_data callbacks. This works around a problem where some applications
1976 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1977 restarting) then use compression (e.g. SSL with compression) later.
1978 This results in significant per-connection memory leaks and
1979 has caused some security issues including CVE-2008-1678 and
1983 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1984 change when encrypting or decrypting.
1987 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1988 connect and renegotiate with servers which do not support RI.
1989 Until RI is more widely deployed this option is enabled by default.
1992 *) Add "missing" ssl ctrls to clear options and mode.
1995 *) If client attempts to renegotiate and doesn't support RI respond with
1996 a no_renegotiation alert as required by RFC5746. Some renegotiating
1997 TLS clients will continue a connection gracefully when they receive
1998 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1999 waiting for a server hello which it will never receive. Now we treat a
2000 received no_renegotiation alert as a fatal error. This is because
2001 applications requesting a renegotiation might well expect it to succeed
2002 and would have no code in place to handle the server denying it so the
2003 only safe thing to do is to terminate the connection.
2006 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2007 peer supports secure renegotiation and 0 otherwise. Print out peer
2008 renegotiation support in s_client/s_server.
2011 *) Replace the highly broken and deprecated SPKAC certification method with
2012 the updated NID creation version. This should correctly handle UTF8.
2015 *) Implement RFC5746. Re-enable renegotiation but require the extension
2016 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2017 turns out to be a bad idea. It has been replaced by
2018 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2019 SSL_CTX_set_options(). This is really not recommended unless you
2020 know what you are doing.
2021 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2023 *) Fixes to stateless session resumption handling. Use initial_ctx when
2024 issuing and attempting to decrypt tickets in case it has changed during
2025 servername handling. Use a non-zero length session ID when attempting
2026 stateless session resumption: this makes it possible to determine if
2027 a resumption has occurred immediately after receiving server hello
2028 (several places in OpenSSL subtly assume this) instead of later in
2032 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2033 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2034 fixes for a few places where the return code is not checked
2036 [Julia Lawall <julia@diku.dk>]
2038 *) Add --strict-warnings option to Configure script to include devteam
2039 warnings in other configurations.
2042 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2043 makes it possible to install openssl libraries in locations which
2044 have names other than "lib", for example "/usr/lib64" which some
2046 [Steve Henson, based on patch from Jeremy Utley]
2048 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2049 X690 8.9.12 and can produce some misleading textual output of OIDs.
2050 [Steve Henson, reported by Dan Kaminsky]
2052 *) Delete MD2 from algorithm tables. This follows the recommendation in
2053 several standards that it is not used in new applications due to
2054 several cryptographic weaknesses. For binary compatibility reasons
2055 the MD2 API is still compiled in by default.
2058 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2062 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2063 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2065 [Guenter <lists@gknw.net>]
2067 *) Fix the server certificate chain building code to use X509_verify_cert(),
2068 it used to have an ad-hoc builder which was unable to cope with anything
2069 other than a simple chain.
2070 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2072 *) Don't check self signed certificate signatures in X509_verify_cert()
2073 by default (a flag can override this): it just wastes time without
2074 adding any security. As a useful side effect self signed root CAs
2075 with non-FIPS digests are now usable in FIPS mode.
2078 *) In dtls1_process_out_of_seq_message() the check if the current message
2079 is already buffered was missing. For every new message was memory
2080 allocated, allowing an attacker to perform an denial of service attack
2081 with sending out of seq handshake messages until there is no memory
2082 left. Additionally every future messege was buffered, even if the
2083 sequence number made no sense and would be part of another handshake.
2084 So only messages with sequence numbers less than 10 in advance will be
2085 buffered. (CVE-2009-1378)
2086 [Robin Seggelmann, discovered by Daniel Mentz]
2088 *) Records are buffered if they arrive with a future epoch to be
2089 processed after finishing the corresponding handshake. There is
2090 currently no limitation to this buffer allowing an attacker to perform
2091 a DOS attack with sending records with future epochs until there is no
2092 memory left. This patch adds the pqueue_size() function to detemine
2093 the size of a buffer and limits the record buffer to 100 entries.
2095 [Robin Seggelmann, discovered by Daniel Mentz]
2097 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2098 parent structure is freed. (CVE-2009-1379)
2101 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2102 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2105 [Ilya O. <vrghost@gmail.com>]
2107 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2109 *) Disable renegotiation completely - this fixes a severe security
2110 problem (CVE-2009-3555) at the cost of breaking all
2111 renegotiation. Renegotiation can be re-enabled by setting
2112 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2113 run-time. This is really not recommended unless you know what
2117 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2119 *) Don't set val to NULL when freeing up structures, it is freed up by
2120 underlying code. If sizeof(void *) > sizeof(long) this can result in
2121 zeroing past the valid field. (CVE-2009-0789)
2122 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2124 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2125 checked correctly. This would allow some invalid signed attributes to
2126 appear to verify correctly. (CVE-2009-0591)
2127 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2129 *) Reject UniversalString and BMPString types with invalid lengths. This
2130 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2131 a legal length. (CVE-2009-0590)
2134 *) Set S/MIME signing as the default purpose rather than setting it
2135 unconditionally. This allows applications to override it at the store
2139 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2140 to handle some structures.
2143 *) Improve efficiency of mem_gets: don't search whole buffer each time
2145 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2147 *) New -hex option for openssl rand.
2150 *) Print out UTF8String and NumericString when parsing ASN1.
2153 *) Support NumericString type for name components.
2156 *) Allow CC in the environment to override the automatically chosen
2157 compiler. Note that nothing is done to ensure flags work with the
2161 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2163 *) Properly check EVP_VerifyFinal() and similar return values
2165 [Ben Laurie, Bodo Moeller, Google Security Team]
2167 *) Enable TLS extensions by default.
2170 *) Allow the CHIL engine to be loaded, whether the application is
2171 multithreaded or not. (This does not release the developer from the
2172 obligation to set up the dynamic locking callbacks.)
2173 [Sander Temme <sander@temme.net>]
2175 *) Use correct exit code if there is an error in dgst command.
2176 [Steve Henson; problem pointed out by Roland Dirlewanger]
2178 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2179 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2182 *) Add experimental JPAKE support, including demo authentication in
2183 s_client and s_server.
2186 *) Set the comparison function in v3_addr_canonize().
2187 [Rob Austein <sra@hactrn.net>]
2189 *) Add support for XMPP STARTTLS in s_client.
2190 [Philip Paeps <philip@freebsd.org>]
2192 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2193 to ensure that even with this option, only ciphersuites in the
2194 server's preference list will be accepted. (Note that the option
2195 applies only when resuming a session, so the earlier behavior was
2196 just about the algorithm choice for symmetric cryptography.)
2199 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2201 *) Fix NULL pointer dereference if a DTLS server received
2202 ChangeCipherSpec as first record (CVE-2009-1386).
2205 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2206 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2209 *) The fix in 0.9.8c that supposedly got rid of unsafe
2210 double-checked locking was incomplete for RSA blinding,
2211 addressing just one layer of what turns out to have been
2212 doubly unsafe triple-checked locking.
2214 So now fix this for real by retiring the MONT_HELPER macro
2215 in crypto/rsa/rsa_eay.c.
2217 [Bodo Moeller; problem pointed out by Marius Schilder]
2219 *) Various precautionary measures:
2221 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2223 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2224 (NB: This would require knowledge of the secret session ticket key
2225 to exploit, in which case you'd be SOL either way.)
2227 - Change bn_nist.c so that it will properly handle input BIGNUMs
2228 outside the expected range.
2230 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2233 [Neel Mehta, Bodo Moeller]
2235 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2236 the load fails. Useful for distros.
2237 [Ben Laurie and the FreeBSD team]
2239 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2242 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2245 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2247 This work was sponsored by Logica.
2250 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2251 keystores. Support for SSL/TLS client authentication too.
2252 Not compiled unless enable-capieng specified to Configure.
2254 This work was sponsored by Logica.
2257 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2258 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2259 attribute creation routines such as certifcate requests and PKCS#12
2263 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2265 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2266 handshake which could lead to a cilent crash as found using the
2267 Codenomicon TLS test suite (CVE-2008-1672)
2268 [Steve Henson, Mark Cox]
2270 *) Fix double free in TLS server name extensions which could lead to
2271 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2274 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2276 Clear the error queue to ensure that error entries left from
2277 older function calls do not interfere with the correct operation.
2278 [Lutz Jaenicke, Erik de Castro Lopo]
2280 *) Remove root CA certificates of commercial CAs:
2282 The OpenSSL project does not recommend any specific CA and does not
2283 have any policy with respect to including or excluding any CA.
2284 Therefore it does not make any sense to ship an arbitrary selection
2285 of root CA certificates with the OpenSSL software.
2288 *) RSA OAEP patches to fix two separate invalid memory reads.
2289 The first one involves inputs when 'lzero' is greater than
2290 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2291 before the beginning of from). The second one involves inputs where
2292 the 'db' section contains nothing but zeroes (there is a one-byte
2293 invalid read after the end of 'db').
2294 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2296 *) Partial backport from 0.9.9-dev:
2298 Introduce bn_mul_mont (dedicated Montgomery multiplication
2299 procedure) as a candidate for BIGNUM assembler implementation.
2300 While 0.9.9-dev uses assembler for various architectures, only
2301 x86_64 is available by default here in the 0.9.8 branch, and
2302 32-bit x86 is available through a compile-time setting.
2304 To try the 32-bit x86 assembler implementation, use Configure
2305 option "enable-montasm" (which exists only for this backport).
2307 As "enable-montasm" for 32-bit x86 disclaims code stability
2308 anyway, in this constellation we activate additional code
2309 backported from 0.9.9-dev for further performance improvements,
2310 namely BN_from_montgomery_word. (To enable this otherwise,
2311 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2313 [Andy Polyakov (backport partially by Bodo Moeller)]
2315 *) Add TLS session ticket callback. This allows an application to set
2316 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2317 values. This is useful for key rollover for example where several key
2318 sets may exist with different names.
2321 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2322 This was broken until now in 0.9.8 releases, such that the only way
2323 a registered ENGINE could be used (assuming it initialises
2324 successfully on the host) was to explicitly set it as the default
2325 for the relevant algorithms. This is in contradiction with 0.9.7
2326 behaviour and the documentation. With this fix, when an ENGINE is
2327 registered into a given algorithm's table of implementations, the
2328 'uptodate' flag is reset so that auto-discovery will be used next
2329 time a new context for that algorithm attempts to select an
2331 [Ian Lister (tweaked by Geoff Thorpe)]
2333 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2334 implemention in the following ways:
2336 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2339 Lack of BER streaming support means one pass streaming processing is
2340 only supported if data is detached: setting the streaming flag is
2341 ignored for embedded content.
2343 CMS support is disabled by default and must be explicitly enabled
2344 with the enable-cms configuration option.
2347 *) Update the GMP engine glue to do direct copies between BIGNUM and
2348 mpz_t when openssl and GMP use the same limb size. Otherwise the
2349 existing "conversion via a text string export" trick is still used.
2350 [Paul Sheer <paulsheer@gmail.com>]
2352 *) Zlib compression BIO. This is a filter BIO which compressed and
2353 uncompresses any data passed through it.
2356 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2357 RFC3394 compatible AES key wrapping.
2360 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2361 sets string data without copying. X509_ALGOR_set0() and
2362 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2363 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2364 from an X509_ATTRIBUTE structure optionally checking it occurs only
2365 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2369 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2370 to get the expected BN_FLG_CONSTTIME behavior.
2371 [Bodo Moeller (Google)]
2375 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2376 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2377 - added some more tests to do_tests.pl
2378 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2379 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2380 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2381 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2382 - various changes to netware.pl to enable gcc-cross builds on Win32
2384 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2385 - various changes to fix missing prototype warnings
2386 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2387 - added AES, WHIRLPOOL and CPUID assembler code to build files
2388 - added missing AES assembler make rules to mk1mf.pl
2389 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2390 [Guenter Knauf <eflash@gmx.net>]
2392 *) Implement certificate status request TLS extension defined in RFC3546.
2393 A client can set the appropriate parameters and receive the encoded
2394 OCSP response via a callback. A server can query the supplied parameters
2395 and set the encoded OCSP response in the callback. Add simplified examples
2396 to s_client and s_server.
2399 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2401 *) Fix various bugs:
2402 + Binary incompatibility of ssl_ctx_st structure
2403 + DTLS interoperation with non-compliant servers
2404 + Don't call get_session_cb() without proposed session
2405 + Fix ia64 assembler code
2406 [Andy Polyakov, Steve Henson]
2408 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2410 *) DTLS Handshake overhaul. There were longstanding issues with
2411 OpenSSL DTLS implementation, which were making it impossible for
2412 RFC 4347 compliant client to communicate with OpenSSL server.
2413 Unfortunately just fixing these incompatibilities would "cut off"
2414 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2415 server keeps tolerating non RFC compliant syntax. The opposite is
2416 not true, 0.9.8f client can not communicate with earlier server.
2417 This update even addresses CVE-2007-4995.
2420 *) Changes to avoid need for function casts in OpenSSL: some compilers
2421 (gcc 4.2 and later) reject their use.
2422 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2425 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2426 RFC4507bis. The encrypted ticket format is an encrypted encoded
2427 SSL_SESSION structure, that way new session features are automatically
2430 If a client application caches session in an SSL_SESSION structure
2431 support is transparent because tickets are now stored in the encoded
2434 The SSL_CTX structure automatically generates keys for ticket
2435 protection in servers so again support should be possible
2436 with no application modification.
2438 If a client or server wishes to disable RFC4507 support then the option
2439 SSL_OP_NO_TICKET can be set.
2441 Add a TLS extension debugging callback to allow the contents of any client
2442 or server extensions to be examined.
2444 This work was sponsored by Google.
2447 *) Add initial support for TLS extensions, specifically for the server_name
2448 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2449 have new members for a host name. The SSL data structure has an
2450 additional member SSL_CTX *initial_ctx so that new sessions can be
2451 stored in that context to allow for session resumption, even after the
2452 SSL has been switched to a new SSL_CTX in reaction to a client's
2453 server_name extension.
2455 New functions (subject to change):
2457 SSL_get_servername()
2458 SSL_get_servername_type()
2461 New CTRL codes and macros (subject to change):
2463 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2464 - SSL_CTX_set_tlsext_servername_callback()
2465 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2466 - SSL_CTX_set_tlsext_servername_arg()
2467 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2469 openssl s_client has a new '-servername ...' option.
2471 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2472 '-key2 ...', '-servername_fatal' (subject to change). This allows
2473 testing the HostName extension for a specific single host name ('-cert'
2474 and '-key' remain fallbacks for handshakes without HostName
2475 negotiation). If the unrecogninzed_name alert has to be sent, this by
2476 default is a warning; it becomes fatal with the '-servername_fatal'
2479 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2481 *) Add AES and SSE2 assembly language support to VC++ build.
2484 *) Mitigate attack on final subtraction in Montgomery reduction.
2487 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2488 (which previously caused an internal error).
2491 *) Squeeze another 10% out of IGE mode when in != out.
2494 *) AES IGE mode speedup.
2495 [Dean Gaudet (Google)]
2497 *) Add the Korean symmetric 128-bit cipher SEED (see
2498 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2499 add SEED ciphersuites from RFC 4162:
2501 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2502 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2503 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2504 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2506 To minimize changes between patchlevels in the OpenSSL 0.9.8
2507 series, SEED remains excluded from compilation unless OpenSSL
2508 is configured with 'enable-seed'.
2509 [KISA, Bodo Moeller]
2511 *) Mitigate branch prediction attacks, which can be practical if a
2512 single processor is shared, allowing a spy process to extract
2513 information. For detailed background information, see
2514 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2515 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2516 and Necessary Software Countermeasures"). The core of the change
2517 are new versions BN_div_no_branch() and
2518 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2519 respectively, which are slower, but avoid the security-relevant
2520 conditional branches. These are automatically called by BN_div()
2521 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2522 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2523 remove a conditional branch.
2525 BN_FLG_CONSTTIME is the new name for the previous
2526 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2527 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2528 in the exponent causes BN_mod_exp_mont() to use the alternative
2529 implementation in BN_mod_exp_mont_consttime().) The old name
2530 remains as a deprecated alias.
2532 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2533 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2534 constant-time implementations for more than just exponentiation.
2535 Here too the old name is kept as a deprecated alias.
2537 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2538 the BN_BLINDING structure gets an independent copy of the
2539 modulus. This means that the previous "BIGNUM *m" argument to
2540 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2541 essentially becomes "const BIGNUM *m", although we can't actually
2542 change this in the header file before 0.9.9. It allows
2543 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2544 enable BN_FLG_CONSTTIME.
2546 [Matthew D Wood (Intel Corp)]
2548 *) In the SSL/TLS server implementation, be strict about session ID
2549 context matching (which matters if an application uses a single
2550 external cache for different purposes). Previously,
2551 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2552 set. This did ensure strict client verification, but meant that,
2553 with applications using a single external cache for quite
2554 different requirements, clients could circumvent ciphersuite
2555 restrictions for a given session ID context by starting a session
2556 in a different context.
2559 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2560 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2561 authentication-only ciphersuites.
2564 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2565 not complete and could lead to a possible single byte overflow
2566 (CVE-2007-5135) [Ben Laurie]
2568 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2570 *) Since AES128 and AES256 (and similarly Camellia128 and
2571 Camellia256) share a single mask bit in the logic of
2572 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2573 kludge to work properly if AES128 is available and AES256 isn't
2574 (or if Camellia128 is available and Camellia256 isn't).
2577 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2578 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2579 When a point or a seed is encoded in a BIT STRING, we need to
2580 prevent the removal of trailing zero bits to get the proper DER
2581 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2582 of a NamedBitList, for which trailing 0 bits need to be removed.)
2585 *) Have SSL/TLS server implementation tolerate "mismatched" record
2586 protocol version while receiving ClientHello even if the
2587 ClientHello is fragmented. (The server can't insist on the
2588 particular protocol version it has chosen before the ServerHello
2589 message has informed the client about his choice.)
2592 *) Add RFC 3779 support.
2593 [Rob Austein for ARIN, Ben Laurie]
2595 *) Load error codes if they are not already present instead of using a
2596 static variable. This allows them to be cleanly unloaded and reloaded.
2597 Improve header file function name parsing.
2600 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2601 or CAPABILITY handshake as required by RFCs.
2604 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2606 *) Introduce limits to prevent malicious keys being able to
2607 cause a denial of service. (CVE-2006-2940)
2608 [Steve Henson, Bodo Moeller]
2610 *) Fix ASN.1 parsing of certain invalid structures that can result
2611 in a denial of service. (CVE-2006-2937) [Steve Henson]
2613 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2614 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2616 *) Fix SSL client code which could crash if connecting to a
2617 malicious SSLv2 server. (CVE-2006-4343)
2618 [Tavis Ormandy and Will Drewry, Google Security Team]
2620 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2621 match only those. Before that, "AES256-SHA" would be interpreted
2622 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2623 the same strength classification in 0.9.7h) as we currently only
2624 have a single AES bit in the ciphersuite description bitmap.
2625 That change, however, also applied to ciphersuite strings such as
2626 "RC4-MD5" that intentionally matched multiple ciphersuites --
2627 namely, SSL 2.0 ciphersuites in addition to the more common ones
2628 from SSL 3.0/TLS 1.0.
2630 So we change the selection algorithm again: Naming an explicit
2631 ciphersuite selects this one ciphersuite, and any other similar
2632 ciphersuite (same bitmap) from *other* protocol versions.
2633 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2634 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2636 Since SSL 2.0 does not have any ciphersuites for which the
2637 128/256 bit distinction would be relevant, this works for now.
2638 The proper fix will be to use different bits for AES128 and
2639 AES256, which would have avoided the problems from the beginning;
2640 however, bits are scarce, so we can only do this in a new release
2641 (not just a patchlevel) when we can change the SSL_CIPHER
2642 definition to split the single 'unsigned long mask' bitmap into
2643 multiple values to extend the available space.
2647 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2649 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2650 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2652 *) Add AES IGE and biIGE modes.
2655 *) Change the Unix randomness entropy gathering to use poll() when
2656 possible instead of select(), since the latter has some
2657 undesirable limitations.
2658 [Darryl Miles via Richard Levitte and Bodo Moeller]
2660 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2661 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2662 cannot be implicitly activated as part of, e.g., the "AES" alias.
2663 However, please upgrade to OpenSSL 0.9.9[-dev] for
2664 non-experimental use of the ECC ciphersuites to get TLS extension
2665 support, which is required for curve and point format negotiation
2666 to avoid potential handshake problems.
2669 *) Disable rogue ciphersuites:
2671 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2672 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2673 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2675 The latter two were purportedly from
2676 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2679 Also deactivate the remaining ciphersuites from
2680 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2681 unofficial, and the ID has long expired.
2684 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2685 dual-core machines) and other potential thread-safety issues.
2688 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2689 versions), which is now available for royalty-free use
2690 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2691 Also, add Camellia TLS ciphersuites from RFC 4132.
2693 To minimize changes between patchlevels in the OpenSSL 0.9.8
2694 series, Camellia remains excluded from compilation unless OpenSSL
2695 is configured with 'enable-camellia'.
2698 *) Disable the padding bug check when compression is in use. The padding
2699 bug check assumes the first packet is of even length, this is not
2700 necessarily true if compresssion is enabled and can result in false
2701 positives causing handshake failure. The actual bug test is ancient
2702 code so it is hoped that implementations will either have fixed it by
2703 now or any which still have the bug do not support compression.
2706 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2708 *) When applying a cipher rule check to see if string match is an explicit
2709 cipher suite and only match that one cipher suite if it is.
2712 *) Link in manifests for VC++ if needed.
2713 [Austin Ziegler <halostatue@gmail.com>]
2715 *) Update support for ECC-based TLS ciphersuites according to
2716 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2717 TLS extensions, which are supported starting with the 0.9.9
2718 branch, not in the OpenSSL 0.9.8 branch).
2721 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2722 opaque EVP_CIPHER_CTX handling.
2725 *) Fixes and enhancements to zlib compression code. We now only use
2726 "zlib1.dll" and use the default __cdecl calling convention on Win32
2727 to conform with the standards mentioned here:
2728 http://www.zlib.net/DLL_FAQ.txt
2729 Static zlib linking now works on Windows and the new --with-zlib-include
2730 --with-zlib-lib options to Configure can be used to supply the location
2731 of the headers and library. Gracefully handle case where zlib library
2735 *) Several fixes and enhancements to the OID generation code. The old code
2736 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2737 handle numbers larger than ULONG_MAX, truncated printing and had a
2738 non standard OBJ_obj2txt() behaviour.
2741 *) Add support for building of engines under engine/ as shared libraries
2742 under VC++ build system.
2745 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2746 Hopefully, we will not see any false combination of paths any more.
2749 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2751 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2752 (part of SSL_OP_ALL). This option used to disable the
2753 countermeasure against man-in-the-middle protocol-version
2754 rollback in the SSL 2.0 server implementation, which is a bad
2755 idea. (CVE-2005-2969)
2757 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2758 for Information Security, National Institute of Advanced Industrial
2759 Science and Technology [AIST], Japan)]
2761 *) Add two function to clear and return the verify parameter flags.
2764 *) Keep cipherlists sorted in the source instead of sorting them at
2765 runtime, thus removing the need for a lock.
2768 *) Avoid some small subgroup attacks in Diffie-Hellman.
2769 [Nick Mathewson and Ben Laurie]
2771 *) Add functions for well-known primes.
2774 *) Extended Windows CE support.
2775 [Satoshi Nakamura and Andy Polyakov]
2777 *) Initialize SSL_METHOD structures at compile time instead of during
2778 runtime, thus removing the need for a lock.
2781 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2782 attempting to decrypt each encrypted key in turn. Add support to
2786 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2788 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2791 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2794 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2795 key into the same file any more.
2798 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2801 *) Add -utf8 command line and config file option to 'ca'.
2802 [Stefan <stf@udoma.org]
2804 *) Removed the macro des_crypt(), as it seems to conflict with some
2805 libraries. Use DES_crypt().
2808 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2809 involves renaming the source and generated shared-libs for
2810 both. The engines will accept the corrected or legacy ids
2811 ('ncipher' and '4758_cca' respectively) when binding. NB,
2812 this only applies when building 'shared'.
2813 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2815 *) Add attribute functions to EVP_PKEY structure. Modify
2816 PKCS12_create() to recognize a CSP name attribute and
2817 use it. Make -CSP option work again in pkcs12 utility.
2820 *) Add new functionality to the bn blinding code:
2821 - automatic re-creation of the BN_BLINDING parameters after
2822 a fixed number of uses (currently 32)
2823 - add new function for parameter creation
2824 - introduce flags to control the update behaviour of the
2825 BN_BLINDING parameters
2826 - hide BN_BLINDING structure
2827 Add a second BN_BLINDING slot to the RSA structure to improve
2828 performance when a single RSA object is shared among several
2832 *) Add support for DTLS.
2833 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2835 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2836 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2839 *) Remove buggy and incompletet DH cert support from
2840 ssl/ssl_rsa.c and ssl/s3_both.c
2843 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2844 the apps/openssl applications.
2847 *) Compile clean with "-Wall -Wmissing-prototypes
2848 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2849 DEBUG_SAFESTACK must also be set.
2852 *) Change ./Configure so that certain algorithms can be disabled by default.
2853 The new counterpiece to "no-xxx" is "enable-xxx".
2855 The patented RC5 and MDC2 algorithms will now be disabled unless
2856 "enable-rc5" and "enable-mdc2", respectively, are specified.
2858 (IDEA remains enabled despite being patented. This is because IDEA
2859 is frequently required for interoperability, and there is no license
2860 fee for non-commercial use. As before, "no-idea" can be used to
2861 avoid this algorithm.)
2865 *) Add processing of proxy certificates (see RFC 3820). This work was
2866 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2867 EGEE (Enabling Grids for E-science in Europe).
2870 *) RC4 performance overhaul on modern architectures/implementations, such
2871 as Intel P4, IA-64 and AMD64.
2874 *) New utility extract-section.pl. This can be used specify an alternative
2875 section number in a pod file instead of having to treat each file as
2876 a separate case in Makefile. This can be done by adding two lines to the
2879 =for comment openssl_section:XXX
2881 The blank line is mandatory.
2885 *) New arguments -certform, -keyform and -pass for s_client and s_server
2886 to allow alternative format key and certificate files and passphrase
2890 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2891 update associated structures and add various utility functions.
2893 Add new policy related verify parameters, include policy checking in
2894 standard verify code. Enhance 'smime' application with extra parameters
2895 to support policy checking and print out.
2898 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2899 Nehemiah processors. These extensions support AES encryption in hardware
2900 as well as RNG (though RNG support is currently disabled).
2901 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2903 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2906 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2907 [Andy Polyakov and a number of other people]
2909 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2910 implementation contributed by IBM.
2911 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2913 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2914 exponent rather than 'unsigned long'. There is a corresponding change to
2915 the new 'rsa_keygen' element of the RSA_METHOD structure.
2916 [Jelte Jansen, Geoff Thorpe]
2918 *) Functionality for creating the initial serial number file is now
2919 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2921 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2922 number file to 1, which is bound to cause problems. To avoid
2923 the problems while respecting compatibility between different 0.9.7
2924 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2925 CA.pl for serial number initialization. With the new release 0.9.8,
2926 we can fix the problem directly in the 'ca' utility.)
2929 *) Reduced header interdepencies by declaring more opaque objects in
2930 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2931 give fewer recursive includes, which could break lazy source code - so
2932 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2933 developers should define this symbol when building and using openssl to
2934 ensure they track the recommended behaviour, interfaces, [etc], but
2935 backwards-compatible behaviour prevails when this isn't defined.
2938 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2941 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2942 This will generate a random key of the appropriate length based on the
2943 cipher context. The EVP_CIPHER can provide its own random key generation
2944 routine to support keys of a specific form. This is used in the des and
2945 3des routines to generate a key of the correct parity. Update S/MIME
2946 code to use new functions and hence generate correct parity DES keys.
2947 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2948 valid (weak or incorrect parity).
2951 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2952 as looking them up. This is useful when the verified structure may contain
2953 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2954 present unless the new PKCS7_NO_CRL flag is asserted.
2957 *) Extend ASN1 oid configuration module. It now additionally accepts the
2960 shortName = some long name, 1.2.3.4
2963 *) Reimplemented the BN_CTX implementation. There is now no more static
2964 limitation on the number of variables it can handle nor the depth of the
2965 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2966 information can now expand as required, and rather than having a single
2967 static array of bignums, BN_CTX now uses a linked-list of such arrays
2968 allowing it to expand on demand whilst maintaining the usefulness of
2969 BN_CTX's "bundling".
2972 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2973 to allow all RSA operations to function using a single BN_CTX.
2976 *) Preliminary support for certificate policy evaluation and checking. This
2977 is initially intended to pass the tests outlined in "Conformance Testing
2978 of Relying Party Client Certificate Path Processing Logic" v1.07.
2981 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2982 remained unused and not that useful. A variety of other little bignum
2983 tweaks and fixes have also been made continuing on from the audit (see
2987 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2988 associated ASN1, EVP and SSL functions and old ASN1 macros.
2991 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2992 and this should never fail. So the return value from the use of
2993 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2994 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2997 *) BN_CTX_get() should return zero-valued bignums, providing the same
2998 initialised value as BN_new().
2999 [Geoff Thorpe, suggested by Ulf Möller]
3001 *) Support for inhibitAnyPolicy certificate extension.
3004 *) An audit of the BIGNUM code is underway, for which debugging code is
3005 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3006 is considered valid when processing BIGNUMs, and causes execution to
3007 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3008 further steps are taken to deliberately pollute unused data in BIGNUM
3009 structures to try and expose faulty code further on. For now, openssl will
3010 (in its default mode of operation) continue to tolerate the inconsistent
3011 forms that it has tolerated in the past, but authors and packagers should
3012 consider trying openssl and their own applications when compiled with
3013 these debugging symbols defined. It will help highlight potential bugs in
3014 their own code, and will improve the test coverage for OpenSSL itself. At
3015 some point, these tighter rules will become openssl's default to improve
3016 maintainability, though the assert()s and other overheads will remain only
3017 in debugging configurations. See bn.h for more details.
3018 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3020 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3021 that can only be obtained through BN_CTX_new() (which implicitly
3022 initialises it). The presence of this function only made it possible
3023 to overwrite an existing structure (and cause memory leaks).
3026 *) Because of the callback-based approach for implementing LHASH as a
3027 template type, lh_insert() adds opaque objects to hash-tables and
3028 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3029 to clean up those corresponding objects before destroying the hash table
3030 (and losing the object pointers). So some over-zealous constifications in
3031 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3032 objects as "const" and the lh_doall[_arg] callback wrappers are not
3033 prototyped to have "const" restrictions on the object pointers they are
3034 given (and so aren't required to cast them away any more).
3037 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3038 (speed) prefers to use its own implementation. The two implementations
3039 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3040 its object type properly exposed (MS_TM) instead of casting to/from "char
3041 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3042 aren't necessarily the greatest nomenclatures - but this is what was used
3043 internally to the implementation so I've used that for now.
3046 *) Ensure that deprecated functions do not get compiled when
3047 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3048 the self-tests were still using deprecated key-generation functions so
3049 these have been updated also.
3052 *) Reorganise PKCS#7 code to separate the digest location functionality
3053 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3054 New function PKCS7_set_digest() to set the digest type for PKCS#7
3055 digestedData type. Add additional code to correctly generate the
3056 digestedData type and add support for this type in PKCS7 initialization
3060 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3061 structure of type "other".
3064 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3065 sure the loop does correctly stop and breaking ("division by zero")
3066 modulus operations are not performed. The (pre-generated) prime
3067 table crypto/bn/bn_prime.h was already correct, but it could not be
3068 re-generated on some platforms because of the "division by zero"
3069 situation in the script.
3070 [Ralf S. Engelschall]
3072 *) Update support for ECC-based TLS ciphersuites according to
3073 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3074 SHA-1 now is only used for "small" curves (where the
3075 representation of a field element takes up to 24 bytes); for
3076 larger curves, the field element resulting from ECDH is directly
3077 used as premaster secret.
3078 [Douglas Stebila (Sun Microsystems Laboratories)]
3080 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3081 curve secp160r1 to the tests.
3082 [Douglas Stebila (Sun Microsystems Laboratories)]
3084 *) Add the possibility to load symbols globally with DSO.
3085 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3087 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3088 control of the error stack.
3091 *) Add support for STORE in ENGINE.
3094 *) Add the STORE type. The intention is to provide a common interface
3095 to certificate and key stores, be they simple file-based stores, or
3096 HSM-type store, or LDAP stores, or...
3097 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3100 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3101 pass a list of arguments to any function as well as provide a way
3102 for a function to pass data back to the caller.
3105 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3106 works like BUF_strdup() but can be used to duplicate a portion of
3107 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3111 *) Add the function sk_find_ex() which works like sk_find(), but will
3112 return an index to an element even if an exact match couldn't be
3113 found. The index is guaranteed to point at the element where the
3114 searched-for key would be inserted to preserve sorting order.
3117 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3118 takes an extra flags argument for optional functionality. Currently,
3119 the following flags are defined:
3121 OBJ_BSEARCH_VALUE_ON_NOMATCH
3122 This one gets OBJ_bsearch_ex() to return a pointer to the first
3123 element where the comparing function returns a negative or zero
3126 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3127 This one gets OBJ_bsearch_ex() to return a pointer to the first
3128 element where the comparing function returns zero. This is useful
3129 if there are more than one element where the comparing function
3133 *) Make it possible to create self-signed certificates with 'openssl ca'
3134 in such a way that the self-signed certificate becomes part of the
3135 CA database and uses the same mechanisms for serial number generation
3136 as all other certificate signing. The new flag '-selfsign' enables
3137 this functionality. Adapt CA.sh and CA.pl.in.
3140 *) Add functionality to check the public key of a certificate request
3141 against a given private. This is useful to check that a certificate
3142 request can be signed by that key (self-signing).
3145 *) Make it possible to have multiple active certificates with the same
3146 subject in the CA index file. This is done only if the keyword
3147 'unique_subject' is set to 'no' in the main CA section (default
3148 if 'CA_default') of the configuration file. The value is saved
3149 with the database itself in a separate index attribute file,
3150 named like the index file with '.attr' appended to the name.
3153 *) Generate muti valued AVAs using '+' notation in config files for
3157 *) Support for nameConstraints certificate extension.
3160 *) Support for policyConstraints certificate extension.
3163 *) Support for policyMappings certificate extension.
3166 *) Make sure the default DSA_METHOD implementation only uses its
3167 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3168 and change its own handlers to be NULL so as to remove unnecessary
3169 indirection. This lets alternative implementations fallback to the
3170 default implementation more easily.
3173 *) Support for directoryName in GeneralName related extensions
3177 *) Make it possible to link applications using Makefile.shared.
3178 Make that possible even when linking against static libraries!
3181 *) Support for single pass processing for S/MIME signing. This now
3182 means that S/MIME signing can be done from a pipe, in addition
3183 cleartext signing (multipart/signed type) is effectively streaming
3184 and the signed data does not need to be all held in memory.
3186 This is done with a new flag PKCS7_STREAM. When this flag is set
3187 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3188 is done after the data is output (and digests calculated) in
3189 SMIME_write_PKCS7().
3192 *) Add full support for -rpath/-R, both in shared libraries and
3193 applications, at least on the platforms where it's known how
3197 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3198 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3199 will now compute a table of multiples of the generator that
3200 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3201 faster (notably in the case of a single point multiplication,
3202 scalar * generator).
3203 [Nils Larsch, Bodo Moeller]
3205 *) IPv6 support for certificate extensions. The various extensions
3206 which use the IP:a.b.c.d can now take IPv6 addresses using the
3207 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3211 *) Added an ENGINE that implements RSA by performing private key
3212 exponentiations with the GMP library. The conversions to and from
3213 GMP's mpz_t format aren't optimised nor are any montgomery forms
3214 cached, and on x86 it appears OpenSSL's own performance has caught up.
3215 However there are likely to be other architectures where GMP could
3216 provide a boost. This ENGINE is not built in by default, but it can be
3217 specified at Configure time and should be accompanied by the necessary
3218 linker additions, eg;
3219 ./config -DOPENSSL_USE_GMP -lgmp
3222 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3223 testing availability of engines with "-t" - the old behaviour is
3224 produced by increasing the feature's verbosity with "-tt".
3227 *) ECDSA routines: under certain error conditions uninitialized BN objects
3228 could be freed. Solution: make sure initialization is performed early
3229 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3233 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3234 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3235 software implementations. For DSA and DH, parameter generation can
3236 also be overriden by providing the appropriate method callbacks.
3239 *) Change the "progress" mechanism used in key-generation and
3240 primality testing to functions that take a new BN_GENCB pointer in
3241 place of callback/argument pairs. The new API functions have "_ex"
3242 postfixes and the older functions are reimplemented as wrappers for
3243 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3244 declarations of the old functions to help (graceful) attempts to
3245 migrate to the new functions. Also, the new key-generation API
3246 functions operate on a caller-supplied key-structure and return
3247 success/failure rather than returning a key or NULL - this is to
3248 help make "keygen" another member function of RSA_METHOD etc.
3250 Example for using the new callback interface:
3252 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3256 BN_GENCB_set(&my_cb, my_callback, my_arg);
3258 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3259 /* For the meaning of a, b in calls to my_callback(), see the
3260 * documentation of the function that calls the callback.
3261 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3262 * my_callback should return 1 if it wants BN_is_prime_ex()
3263 * to continue, or 0 to stop.
3268 *) Change the ZLIB compression method to be stateful, and make it
3269 available to TLS with the number defined in
3270 draft-ietf-tls-compression-04.txt.
3273 *) Add the ASN.1 structures and functions for CertificatePair, which
3274 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3276 CertificatePair ::= SEQUENCE {
3277 forward [0] Certificate OPTIONAL,
3278 reverse [1] Certificate OPTIONAL,
3279 -- at least one of the pair shall be present -- }
3281 Also implement the PEM functions to read and write certificate
3282 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3284 This needed to be defined, mostly for the sake of the LDAP
3285 attribute crossCertificatePair, but may prove useful elsewhere as
3289 *) Make it possible to inhibit symlinking of shared libraries in
3290 Makefile.shared, for Cygwin's sake.
3293 *) Extend the BIGNUM API by creating a function
3294 void BN_set_negative(BIGNUM *a, int neg);
3295 and a macro that behave like
3296 int BN_is_negative(const BIGNUM *a);
3298 to avoid the need to access 'a->neg' directly in applications.
3301 *) Implement fast modular reduction for pseudo-Mersenne primes
3302 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3303 EC_GROUP_new_curve_GFp() will now automatically use this
3305 [Nils Larsch <nla@trustcenter.de>]
3307 *) Add new lock type (CRYPTO_LOCK_BN).
3310 *) Change the ENGINE framework to automatically load engines
3311 dynamically from specific directories unless they could be
3312 found to already be built in or loaded. Move all the
3313 current engines except for the cryptodev one to a new
3315 The engines in engines/ are built as shared libraries if
3316 the "shared" options was given to ./Configure or ./config.
3317 Otherwise, they are inserted in libcrypto.a.
3318 /usr/local/ssl/engines is the default directory for dynamic
3319 engines, but that can be overriden at configure time through
3320 the usual use of --prefix and/or --openssldir, and at run
3321 time with the environment variable OPENSSL_ENGINES.
3322 [Geoff Thorpe and Richard Levitte]
3324 *) Add Makefile.shared, a helper makefile to build shared
3325 libraries. Addapt Makefile.org.
3328 *) Add version info to Win32 DLLs.
3329 [Peter 'Luna' Runestig" <peter@runestig.com>]
3331 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3332 can be added using this API to created arbitrary PKCS#12
3333 files while avoiding the low level API.
3335 New options to PKCS12_create(), key or cert can be NULL and
3336 will then be omitted from the output file. The encryption
3337 algorithm NIDs can be set to -1 for no encryption, the mac
3338 iteration count can be set to 0 to omit the mac.
3340 Enhance pkcs12 utility by making the -nokeys and -nocerts
3341 options work when creating a PKCS#12 file. New option -nomac
3342 to omit the mac, NONE can be set for an encryption algorithm.
3343 New code is modified to use the enhanced PKCS12_create()
3344 instead of the low level API.
3347 *) Extend ASN1 encoder to support indefinite length constructed
3348 encoding. This can output sequences tags and octet strings in
3349 this form. Modify pk7_asn1.c to support indefinite length
3350 encoding. This is experimental and needs additional code to
3351 be useful, such as an ASN1 bio and some enhanced streaming
3354 Extend template encode functionality so that tagging is passed
3355 down to the template encoder.
3358 *) Let 'openssl req' fail if an argument to '-newkey' is not
3359 recognized instead of using RSA as a default.
3362 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3363 As these are not official, they are not included in "ALL";
3364 the "ECCdraft" ciphersuite group alias can be used to select them.
3365 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3367 *) Add ECDH engine support.
3368 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3370 *) Add ECDH in new directory crypto/ecdh/.
3371 [Douglas Stebila (Sun Microsystems Laboratories)]
3373 *) Let BN_rand_range() abort with an error after 100 iterations
3374 without success (which indicates a broken PRNG).
3377 *) Change BN_mod_sqrt() so that it verifies that the input value
3378 is really the square of the return value. (Previously,
3379 BN_mod_sqrt would show GIGO behaviour.)
3382 *) Add named elliptic curves over binary fields from X9.62, SECG,
3383 and WAP/WTLS; add OIDs that were still missing.
3385 [Sheueling Chang Shantz and Douglas Stebila
3386 (Sun Microsystems Laboratories)]
3388 *) Extend the EC library for elliptic curves over binary fields
3389 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3392 EC_GF2m_simple_method
3396 EC_GROUP_new_curve_GF2m
3397 EC_GROUP_set_curve_GF2m
3398 EC_GROUP_get_curve_GF2m
3399 EC_POINT_set_affine_coordinates_GF2m
3400 EC_POINT_get_affine_coordinates_GF2m
3401 EC_POINT_set_compressed_coordinates_GF2m
3403 Point compression for binary fields is disabled by default for
3404 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3407 As binary polynomials are represented as BIGNUMs, various members
3408 of the EC_GROUP and EC_POINT data structures can be shared
3409 between the implementations for prime fields and binary fields;
3410 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3411 are essentially identical to their ..._GFp counterparts.
3412 (For simplicity, the '..._GFp' prefix has been dropped from
3413 various internal method names.)
3415 An internal 'field_div' method (similar to 'field_mul' and
3416 'field_sqr') has been added; this is used only for binary fields.
3418 [Sheueling Chang Shantz and Douglas Stebila
3419 (Sun Microsystems Laboratories)]
3421 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3422 through methods ('mul', 'precompute_mult').
3424 The generic implementations (now internally called 'ec_wNAF_mul'
3425 and 'ec_wNAF_precomputed_mult') remain the default if these
3426 methods are undefined.
3428 [Sheueling Chang Shantz and Douglas Stebila
3429 (Sun Microsystems Laboratories)]
3431 *) New function EC_GROUP_get_degree, which is defined through
3432 EC_METHOD. For curves over prime fields, this returns the bit
3433 length of the modulus.
3435 [Sheueling Chang Shantz and Douglas Stebila
3436 (Sun Microsystems Laboratories)]
3438 *) New functions EC_GROUP_dup, EC_POINT_dup.
3439 (These simply call ..._new and ..._copy).
3441 [Sheueling Chang Shantz and Douglas Stebila
3442 (Sun Microsystems Laboratories)]
3444 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3445 Polynomials are represented as BIGNUMs (where the sign bit is not
3446 used) in the following functions [macros]:
3449 BN_GF2m_sub [= BN_GF2m_add]
3450 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3451 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3452 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3454 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3455 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3456 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3457 BN_GF2m_cmp [= BN_ucmp]
3459 (Note that only the 'mod' functions are actually for fields GF(2^m).
3460 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3462 For some functions, an the irreducible polynomial defining a
3463 field can be given as an 'unsigned int[]' with strictly
3464 decreasing elements giving the indices of those bits that are set;
3465 i.e., p[] represents the polynomial
3466 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3468 p[0] > p[1] > ... > p[k] = 0.
3469 This applies to the following functions:
3474 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3475 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3477 BN_GF2m_mod_sqrt_arr
3478 BN_GF2m_mod_solve_quad_arr
3482 Conversion can be performed by the following functions:
3487 bntest.c has additional tests for binary polynomial arithmetic.
3489 Two implementations for BN_GF2m_mod_div() are available.
3490 The default algorithm simply uses BN_GF2m_mod_inv() and
3491 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3492 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3493 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3495 [Sheueling Chang Shantz and Douglas Stebila
3496 (Sun Microsystems Laboratories)]
3498 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3499 functionality is disabled at compile-time.
3500 [Douglas Stebila <douglas.stebila@sun.com>]
3502 *) Change default behaviour of 'openssl asn1parse' so that more
3503 information is visible when viewing, e.g., a certificate:
3505 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3506 mode the content of non-printable OCTET STRINGs is output in a
3507 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3508 avoid the appearance of a printable string.
3509 [Nils Larsch <nla@trustcenter.de>]
3511 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3513 EC_GROUP_set_asn1_flag()
3514 EC_GROUP_get_asn1_flag()
3515 EC_GROUP_set_point_conversion_form()
3516 EC_GROUP_get_point_conversion_form()
3517 These control ASN1 encoding details:
3518 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3519 has been set to OPENSSL_EC_NAMED_CURVE.
3520 - Points are encoded in uncompressed form by default; options for
3521 asn1_for are as for point2oct, namely
3522 POINT_CONVERSION_COMPRESSED
3523 POINT_CONVERSION_UNCOMPRESSED
3524 POINT_CONVERSION_HYBRID
3526 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3529 EC_GROUP_get0_seed()
3530 EC_GROUP_get_seed_len()
3531 This is used only for ASN1 purposes (so far).
3532 [Nils Larsch <nla@trustcenter.de>]
3534 *) Add 'field_type' member to EC_METHOD, which holds the NID
3535 of the appropriate field type OID. The new function
3536 EC_METHOD_get_field_type() returns this value.
3537 [Nils Larsch <nla@trustcenter.de>]
3542 EC_POINT_point2hex()
3543 EC_POINT_hex2point()
3544 providing useful interfaces to EC_POINT_point2oct() and
3545 EC_POINT_oct2point().
3546 [Nils Larsch <nla@trustcenter.de>]
3548 *) Change internals of the EC library so that the functions
3549 EC_GROUP_set_generator()
3550 EC_GROUP_get_generator()
3551 EC_GROUP_get_order()
3552 EC_GROUP_get_cofactor()
3553 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3554 to methods, which would lead to unnecessary code duplication when
3555 adding different types of curves.
3556 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3558 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3559 arithmetic, and such that modified wNAFs are generated
3560 (which avoid length expansion in many cases).
3563 *) Add a function EC_GROUP_check_discriminant() (defined via
3564 EC_METHOD) that verifies that the curve discriminant is non-zero.
3566 Add a function EC_GROUP_check() that makes some sanity tests
3567 on a EC_GROUP, its generator and order. This includes
3568 EC_GROUP_check_discriminant().
3569 [Nils Larsch <nla@trustcenter.de>]
3571 *) Add ECDSA in new directory crypto/ecdsa/.
3573 Add applications 'openssl ecparam' and 'openssl ecdsa'
3574 (these are based on 'openssl dsaparam' and 'openssl dsa').
3576 ECDSA support is also included in various other files across the
3577 library. Most notably,
3578 - 'openssl req' now has a '-newkey ecdsa:file' option;
3579 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3580 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3581 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3582 them suitable for ECDSA where domain parameters must be
3583 extracted before the specific public key;
3584 - ECDSA engine support has been added.
3585 [Nils Larsch <nla@trustcenter.de>]
3587 *) Include some named elliptic curves, and add OIDs from X9.62,
3588 SECG, and WAP/WTLS. Each curve can be obtained from the new
3590 EC_GROUP_new_by_curve_name(),
3591 and the list of available named curves can be obtained with
3592 EC_get_builtin_curves().
3593 Also add a 'curve_name' member to EC_GROUP objects, which can be
3595 EC_GROUP_set_curve_name()
3596 EC_GROUP_get_curve_name()
3597 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3599 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3600 was actually never needed) and in BN_mul(). The removal in BN_mul()
3601 required a small change in bn_mul_part_recursive() and the addition
3602 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3603 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3604 bn_sub_words() and bn_add_words() except they take arrays with
3608 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3610 *) Cleanse PEM buffers before freeing them since they may contain
3612 [Benjamin Bennett <ben@psc.edu>]
3614 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3615 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3616 authentication-only ciphersuites.
3619 *) Since AES128 and AES256 share a single mask bit in the logic of
3620 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3621 kludge to work properly if AES128 is available and AES256 isn't.
3624 *) Expand security boundary to match 1.1.1 module.
3627 *) Remove redundant features: hash file source, editing of test vectors
3628 modify fipsld to use external fips_premain.c signature.
3631 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3632 run algorithm test programs.
3635 *) Make algorithm test programs more tolerant of whitespace.
3638 *) Have SSL/TLS server implementation tolerate "mismatched" record
3639 protocol version while receiving ClientHello even if the
3640 ClientHello is fragmented. (The server can't insist on the
3641 particular protocol version it has chosen before the ServerHello
3642 message has informed the client about his choice.)
3645 *) Load error codes if they are not already present instead of using a
3646 static variable. This allows them to be cleanly unloaded and reloaded.
3649 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3651 *) Introduce limits to prevent malicious keys being able to
3652 cause a denial of service. (CVE-2006-2940)
3653 [Steve Henson, Bodo Moeller]
3655 *) Fix ASN.1 parsing of certain invalid structures that can result
3656 in a denial of service. (CVE-2006-2937) [Steve Henson]
3658 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3659 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3661 *) Fix SSL client code which could crash if connecting to a
3662 malicious SSLv2 server. (CVE-2006-4343)
3663 [Tavis Ormandy and Will Drewry, Google Security Team]
3665 *) Change ciphersuite string processing so that an explicit
3666 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3667 will no longer include "AES128-SHA"), and any other similar
3668 ciphersuite (same bitmap) from *other* protocol versions (so that
3669 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3670 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3671 changes from 0.9.8b and 0.9.8d.
3674 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3676 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3677 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3679 *) Change the Unix randomness entropy gathering to use poll() when
3680 possible instead of select(), since the latter has some
3681 undesirable limitations.
3682 [Darryl Miles via Richard Levitte and Bodo Moeller]
3684 *) Disable rogue ciphersuites:
3686 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3687 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3688 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3690 The latter two were purportedly from
3691 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3694 Also deactive the remaining ciphersuites from
3695 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3696 unofficial, and the ID has long expired.
3699 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3700 dual-core machines) and other potential thread-safety issues.
3703 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3705 *) Adapt fipsld and the build system to link against the validated FIPS
3706 module in FIPS mode.
3709 *) Fixes for VC++ 2005 build under Windows.
3712 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3713 from a Windows bash shell such as MSYS. It is autodetected from the
3714 "config" script when run from a VC++ environment. Modify standard VC++
3715 build to use fipscanister.o from the GNU make build.
3718 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3720 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3721 The value now differs depending on if you build for FIPS or not.
3722 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3723 safely run with a non-FIPSed libcrypto, as it may crash because of
3724 the difference induced by this change.
3727 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3729 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3730 (part of SSL_OP_ALL). This option used to disable the
3731 countermeasure against man-in-the-middle protocol-version
3732 rollback in the SSL 2.0 server implementation, which is a bad
3733 idea. (CVE-2005-2969)
3735 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3736 for Information Security, National Institute of Advanced Industrial
3737 Science and Technology [AIST], Japan)]
3739 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3740 mainly for FIPS compliance and not fully integrated at this stage.
3743 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3744 the exponentiation using a fixed-length exponent. (Otherwise,
3745 the information leaked through timing could expose the secret key
3746 after many signatures; cf. Bleichenbacher's attack on DSA with
3750 *) Make a new fixed-window mod_exp implementation the default for
3751 RSA, DSA, and DH private-key operations so that the sequence of
3752 squares and multiplies and the memory access pattern are
3753 independent of the particular secret key. This will mitigate
3754 cache-timing and potential related attacks.
3756 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3757 and this is automatically used by BN_mod_exp_mont() if the new flag
3758 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3759 will use this BN flag for private exponents unless the flag
3760 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3761 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3763 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3765 *) Change the client implementation for SSLv23_method() and
3766 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3767 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3768 (Previously, the SSL 2.0 backwards compatible Client Hello
3769 message format would be used even with SSL_OP_NO_SSLv2.)
3772 *) Add support for smime-type MIME parameter in S/MIME messages which some
3776 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3777 a threadsafe manner. Modify rsa code to use new function and add calls
3778 to dsa and dh code (which had race conditions before).
3781 *) Include the fixed error library code in the C error file definitions
3782 instead of fixing them up at runtime. This keeps the error code
3783 structures constant.
3786 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3788 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3791 *) Fixes for newer kerberos headers. NB: the casts are needed because
3792 the 'length' field is signed on one version and unsigned on another
3793 with no (?) obvious way to tell the difference, without these VC++
3794 complains. Also the "definition" of FAR (blank) is no longer included
3795 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3796 some needed definitions.
3799 *) Undo Cygwin change.
3802 *) Added support for proxy certificates according to RFC 3820.
3803 Because they may be a security thread to unaware applications,
3804 they must be explicitely allowed in run-time. See
3805 docs/HOWTO/proxy_certificates.txt for further information.
3808 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3810 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3811 server and client random values. Previously
3812 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3813 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3815 This change has negligible security impact because:
3817 1. Server and client random values still have 24 bytes of pseudo random
3820 2. Server and client random values are sent in the clear in the initial
3823 3. The master secret is derived using the premaster secret (48 bytes in
3824 size for static RSA ciphersuites) as well as client server and random
3827 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3830 [Stephen Henson, reported by UK NISCC]
3832 *) Use Windows randomness collection on Cygwin.
3835 *) Fix hang in EGD/PRNGD query when communication socket is closed
3836 prematurely by EGD/PRNGD.
3837 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3839 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3842 *) Back-port of selected performance improvements from development
3843 branch, as well as improved support for PowerPC platforms.
3846 *) Add lots of checks for memory allocation failure, error codes to indicate
3847 failure and freeing up memory if a failure occurs.
3848 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3850 *) Add new -passin argument to dgst.
3853 *) Perform some character comparisons of different types in X509_NAME_cmp:
3854 this is needed for some certificates that reencode DNs into UTF8Strings
3855 (in violation of RFC3280) and can't or wont issue name rollover
3859 *) Make an explicit check during certificate validation to see that
3860 the CA setting in each certificate on the chain is correct. As a
3861 side effect always do the following basic checks on extensions,
3862 not just when there's an associated purpose to the check:
3864 - if there is an unhandled critical extension (unless the user
3865 has chosen to ignore this fault)
3866 - if the path length has been exceeded (if one is set at all)
3867 - that certain extensions fit the associated purpose (if one has
3871 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3873 *) Avoid a race condition when CRLs are checked in a multi threaded
3874 environment. This would happen due to the reordering of the revoked
3875 entries during signature checking and serial number lookup. Now the
3876 encoding is cached and the serial number sort performed under a lock.
3877 Add new STACK function sk_is_sorted().
3880 *) Add Delta CRL to the extension code.
3883 *) Various fixes to s3_pkt.c so alerts are sent properly.
3884 [David Holmes <d.holmes@f5.com>]
3886 *) Reduce the chances of duplicate issuer name and serial numbers (in
3887 violation of RFC3280) using the OpenSSL certificate creation utilities.
3888 This is done by creating a random 64 bit value for the initial serial
3889 number when a serial number file is created or when a self signed
3890 certificate is created using 'openssl req -x509'. The initial serial
3891 number file is created using 'openssl x509 -next_serial' in CA.pl
3892 rather than being initialized to 1.
3895 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3897 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3898 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3899 [Joe Orton, Steve Henson]
3901 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3903 [Joe Orton, Steve Henson]
3905 *) Make it possible to have multiple active certificates with the same
3906 subject in the CA index file. This is done only if the keyword
3907 'unique_subject' is set to 'no' in the main CA section (default
3908 if 'CA_default') of the configuration file. The value is saved
3909 with the database itself in a separate index attribute file,
3910 named like the index file with '.attr' appended to the name.
3913 *) X509 verify fixes. Disable broken certificate workarounds when
3914 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3915 keyUsage extension present. Don't accept CRLs with unhandled critical
3916 extensions: since verify currently doesn't process CRL extensions this
3917 rejects a CRL with *any* critical extensions. Add new verify error codes
3921 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3922 A clarification of RFC2560 will require the use of OCTET STRINGs and
3923 some implementations cannot handle the current raw format. Since OpenSSL
3924 copies and compares OCSP nonces as opaque blobs without any attempt at
3925 parsing them this should not create any compatibility issues.
3928 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3929 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3930 this HMAC (and other) operations are several times slower than OpenSSL
3934 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3935 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3937 *) Use the correct content when signing type "other".
3940 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3942 *) Fix various bugs revealed by running the NISCC test suite:
3944 Stop out of bounds reads in the ASN1 code when presented with
3945 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3947 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3949 If verify callback ignores invalid public key errors don't try to check
3950 certificate signature with the NULL public key.
3954 *) New -ignore_err option in ocsp application to stop the server
3955 exiting on the first error in a request.
3958 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3959 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3963 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3964 extra data after the compression methods not only for TLS 1.0
3965 but also for SSL 3.0 (as required by the specification).
3966 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3968 *) Change X509_certificate_type() to mark the key as exported/exportable
3969 when it's 512 *bits* long, not 512 bytes.
3972 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3973 blocks during encryption.
3976 *) Various fixes to base64 BIO and non blocking I/O. On write
3977 flushes were not handled properly if the BIO retried. On read
3978 data was not being buffered properly and had various logic bugs.
3979 This also affects blocking I/O when the data being decoded is a
3983 *) Various S/MIME bugfixes and compatibility changes:
3984 output correct application/pkcs7 MIME type if
3985 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3986 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3987 of files as .eml work). Correctly handle very long lines in MIME
3991 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3993 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3994 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3995 a protocol version number mismatch like a decryption error
3996 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3999 *) Turn on RSA blinding by default in the default implementation
4000 to avoid a timing attack. Applications that don't want it can call
4001 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4002 They would be ill-advised to do so in most cases.
4003 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4005 *) Change RSA blinding code so that it works when the PRNG is not
4006 seeded (in this case, the secret RSA exponent is abused as
4007 an unpredictable seed -- if it is not unpredictable, there
4008 is no point in blinding anyway). Make RSA blinding thread-safe
4009 by remembering the creator's thread ID in rsa->blinding and
4010 having all other threads use local one-time blinding factors
4011 (this requires more computation than sharing rsa->blinding, but
4012 avoids excessive locking; and if an RSA object is not shared
4013 between threads, blinding will still be very fast).
4016 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4017 ENGINE as defaults for all supported algorithms irrespective of
4018 the 'flags' parameter. 'flags' is now honoured, so applications
4019 should make sure they are passing it correctly.
4022 *) Target "mingw" now allows native Windows code to be generated in
4023 the Cygwin environment as well as with the MinGW compiler.
4026 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4028 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4029 via timing by performing a MAC computation even if incorrrect
4030 block cipher padding has been found. This is a countermeasure
4031 against active attacks where the attacker has to distinguish
4032 between bad padding and a MAC verification error. (CVE-2003-0078)
4034 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4035 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4036 Martin Vuagnoux (EPFL, Ilion)]
4038 *) Make the no-err option work as intended. The intention with no-err
4039 is not to have the whole error stack handling routines removed from
4040 libcrypto, it's only intended to remove all the function name and
4041 reason texts, thereby removing some of the footprint that may not
4042 be interesting if those errors aren't displayed anyway.
4044 NOTE: it's still possible for any application or module to have it's
4045 own set of error texts inserted. The routines are there, just not
4046 used by default when no-err is given.
4049 *) Add support for FreeBSD on IA64.
4050 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4052 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4053 Kerberos function mit_des_cbc_cksum(). Before this change,
4054 the value returned by DES_cbc_cksum() was like the one from
4055 mit_des_cbc_cksum(), except the bytes were swapped.
4056 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4058 *) Allow an application to disable the automatic SSL chain building.
4059 Before this a rather primitive chain build was always performed in
4060 ssl3_output_cert_chain(): an application had no way to send the
4061 correct chain if the automatic operation produced an incorrect result.
4063 Now the chain builder is disabled if either:
4065 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4067 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4069 The reasoning behind this is that an application would not want the
4070 auto chain building to take place if extra chain certificates are
4071 present and it might also want a means of sending no additional
4072 certificates (for example the chain has two certificates and the
4076 *) Add the possibility to build without the ENGINE framework.
4077 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4079 *) Under Win32 gmtime() can return NULL: check return value in
4080 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4083 *) DSA routines: under certain error conditions uninitialized BN objects
4084 could be freed. Solution: make sure initialization is performed early
4085 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4086 Nils Larsch <nla@trustcenter.de> via PR#459)
4089 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4090 checked on reconnect on the client side, therefore session resumption
4091 could still fail with a "ssl session id is different" error. This
4092 behaviour is masked when SSL_OP_ALL is used due to
4093 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4094 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4095 followup to PR #377.
4098 *) IA-32 assembler support enhancements: unified ELF targets, support
4099 for SCO/Caldera platforms, fix for Cygwin shared build.
4102 *) Add support for FreeBSD on sparc64. As a consequence, support for
4103 FreeBSD on non-x86 processors is separate from x86 processors on
4104 the config script, much like the NetBSD support.
4105 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4107 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4109 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4112 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4113 code (06) was taken as the first octet of the session ID and the last
4114 octet was ignored consequently. As a result SSLv2 client side session
4115 caching could not have worked due to the session ID mismatch between
4117 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4121 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4122 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4126 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4127 seems that in spite of existing for more than a year, many application
4128 author have done nothing to provide the necessary callbacks, which
4129 means that this particular engine will not work properly anywhere.
4130 This is a very unfortunate situation which forces us, in the name
4131 of usability, to give the hw_ncipher.c a static lock, which is part
4133 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4134 appear in 0.9.8 or later. We EXPECT application authors to have
4135 dealt properly with this when 0.9.8 is released (unless we actually
4136 make such changes in the libcrypto locking code that changes will
4137 have to be made anyway).
4140 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4141 octets have been read, EOF or an error occurs. Without this change
4142 some truncated ASN1 structures will not produce an error.
4145 *) Disable Heimdal support, since it hasn't been fully implemented.
4146 Still give the possibility to force the use of Heimdal, but with
4147 warnings and a request that patches get sent to openssl-dev.
4150 *) Add the VC-CE target, introduce the WINCE sysname, and add
4151 INSTALL.WCE and appropriate conditionals to make it build.
4152 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4154 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4155 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4156 edit numbers of the version.
4157 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4159 *) Introduce safe string copy and catenation functions
4160 (BUF_strlcpy() and BUF_strlcat()).
4161 [Ben Laurie (CHATS) and Richard Levitte]
4163 *) Avoid using fixed-size buffers for one-line DNs.
4164 [Ben Laurie (CHATS)]
4166 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4167 resizing buffers containing secrets, and use where appropriate.
4168 [Ben Laurie (CHATS)]
4170 *) Avoid using fixed size buffers for configuration file location.
4171 [Ben Laurie (CHATS)]
4173 *) Avoid filename truncation for various CA files.
4174 [Ben Laurie (CHATS)]
4176 *) Use sizeof in preference to magic numbers.
4177 [Ben Laurie (CHATS)]
4179 *) Avoid filename truncation in cert requests.
4180 [Ben Laurie (CHATS)]
4182 *) Add assertions to check for (supposedly impossible) buffer
4184 [Ben Laurie (CHATS)]
4186 *) Don't cache truncated DNS entries in the local cache (this could
4187 potentially lead to a spoofing attack).
4188 [Ben Laurie (CHATS)]
4190 *) Fix various buffers to be large enough for hex/decimal
4191 representations in a platform independent manner.
4192 [Ben Laurie (CHATS)]
4194 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4195 resizing buffers containing secrets, and use where appropriate.
4196 [Ben Laurie (CHATS)]
4198 *) Add BIO_indent() to avoid much slightly worrying code to do
4200 [Ben Laurie (CHATS)]
4202 *) Convert sprintf()/BIO_puts() to BIO_printf().
4203 [Ben Laurie (CHATS)]
4205 *) buffer_gets() could terminate with the buffer only half
4207 [Ben Laurie (CHATS)]
4209 *) Add assertions to prevent user-supplied crypto functions from
4210 overflowing internal buffers by having large block sizes, etc.
4211 [Ben Laurie (CHATS)]
4213 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4215 [Ben Laurie (CHATS)]
4217 *) Eliminate unused copy of key in RC4.
4218 [Ben Laurie (CHATS)]
4220 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4221 [Ben Laurie (CHATS)]
4223 *) Fix off-by-one error in EGD path.
4224 [Ben Laurie (CHATS)]
4226 *) If RANDFILE path is too long, ignore instead of truncating.
4227 [Ben Laurie (CHATS)]
4229 *) Eliminate unused and incorrectly sized X.509 structure
4231 [Ben Laurie (CHATS)]
4233 *) Eliminate unused and dangerous function knumber().
4234 [Ben Laurie (CHATS)]
4236 *) Eliminate unused and dangerous structure, KSSL_ERR.
4237 [Ben Laurie (CHATS)]
4239 *) Protect against overlong session ID context length in an encoded
4240 session object. Since these are local, this does not appear to be
4242 [Ben Laurie (CHATS)]
4244 *) Change from security patch (see 0.9.6e below) that did not affect
4245 the 0.9.6 release series:
4247 Remote buffer overflow in SSL3 protocol - an attacker could
4248 supply an oversized master key in Kerberos-enabled versions.
4250 [Ben Laurie (CHATS)]
4252 *) Change the SSL kerb5 codes to match RFC 2712.
4255 *) Make -nameopt work fully for req and add -reqopt switch.
4256 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4258 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4259 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4261 *) Make sure tests can be performed even if the corresponding algorithms
4262 have been removed entirely. This was also the last step to make
4263 OpenSSL compilable with DJGPP under all reasonable conditions.
4264 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4266 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4267 to allow version independent disabling of normally unselected ciphers,
4268 which may be activated as a side-effect of selecting a single cipher.
4270 (E.g., cipher list string "RSA" enables ciphersuites that are left
4271 out of "ALL" because they do not provide symmetric encryption.
4272 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4273 [Lutz Jaenicke, Bodo Moeller]
4275 *) Add appropriate support for separate platform-dependent build
4276 directories. The recommended way to make a platform-dependent
4277 build directory is the following (tested on Linux), maybe with
4280 # Place yourself outside of the OpenSSL source tree. In
4281 # this example, the environment variable OPENSSL_SOURCE
4282 # is assumed to contain the absolute OpenSSL source directory.
4283 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4284 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4285 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4286 mkdir -p `dirname $F`
4287 ln -s $OPENSSL_SOURCE/$F $F
4290 To be absolutely sure not to disturb the source tree, a "make clean"
4291 is a good thing. If it isn't successfull, don't worry about it,
4292 it probably means the source directory is very clean.
4295 *) Make sure any ENGINE control commands make local copies of string
4296 pointers passed to them whenever necessary. Otherwise it is possible
4297 the caller may have overwritten (or deallocated) the original string
4298 data when a later ENGINE operation tries to use the stored values.
4299 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4301 *) Improve diagnostics in file reading and command-line digests.
4302 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4304 *) Add AES modes CFB and OFB to the object database. Correct an
4305 error in AES-CFB decryption.
4308 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4309 allows existing EVP_CIPHER_CTX structures to be reused after
4310 calling EVP_*Final(). This behaviour is used by encryption
4311 BIOs and some applications. This has the side effect that
4312 applications must explicitly clean up cipher contexts with
4313 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4316 *) Check the values of dna and dnb in bn_mul_recursive before calling
4317 bn_mul_comba (a non zero value means the a or b arrays do not contain
4318 n2 elements) and fallback to bn_mul_normal if either is not zero.
4321 *) Fix escaping of non-ASCII characters when using the -subj option
4322 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4325 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4326 form for "surname", serialNumber has no short form.
4327 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4328 therefore remove "mail" short name for "internet 7".
4329 The OID for unique identifiers in X509 certificates is
4330 x500UniqueIdentifier, not uniqueIdentifier.
4331 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4334 *) Add an "init" command to the ENGINE config module and auto initialize
4335 ENGINEs. Without any "init" command the ENGINE will be initialized
4336 after all ctrl commands have been executed on it. If init=1 the
4337 ENGINE is initailized at that point (ctrls before that point are run
4338 on the uninitialized ENGINE and after on the initialized one). If
4339 init=0 then the ENGINE will not be iniatialized at all.
4342 *) Fix the 'app_verify_callback' interface so that the user-defined
4343 argument is actually passed to the callback: In the
4344 SSL_CTX_set_cert_verify_callback() prototype, the callback
4345 declaration has been changed from
4348 int (*cb)(X509_STORE_CTX *,void *);
4349 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4350 i=s->ctx->app_verify_callback(&ctx)
4351 has been changed into
4352 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4354 To update applications using SSL_CTX_set_cert_verify_callback(),
4355 a dummy argument can be added to their callback functions.
4356 [D. K. Smetters <smetters@parc.xerox.com>]
4358 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4359 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4361 *) Add and OPENSSL_LOAD_CONF define which will cause
4362 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4363 This allows older applications to transparently support certain
4364 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4365 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4366 load the config file and OPENSSL_add_all_algorithms_conf() which will
4367 always load it have also been added.
4370 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4371 Adjust NIDs and EVP layer.
4372 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4374 *) Config modules support in openssl utility.
4376 Most commands now load modules from the config file,
4377 though in a few (such as version) this isn't done
4378 because it couldn't be used for anything.
4380 In the case of ca and req the config file used is
4381 the same as the utility itself: that is the -config
4382 command line option can be used to specify an
4386 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4387 use "openssl_conf" if filename is NULL use default openssl config file.
4390 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4391 config section name. Add a new flag to tolerate a missing config file
4392 and move code to CONF_modules_load_file().
4395 *) Support for crypto accelerator cards from Accelerated Encryption
4396 Processing, www.aep.ie. (Use engine 'aep')
4397 The support was copied from 0.9.6c [engine] and adapted/corrected
4398 to work with the new engine framework.
4399 [AEP Inc. and Richard Levitte]
4401 *) Support for SureWare crypto accelerator cards from Baltimore
4402 Technologies. (Use engine 'sureware')
4403 The support was copied from 0.9.6c [engine] and adapted
4404 to work with the new engine framework.
4407 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4408 make the newer ENGINE framework commands for the CHIL engine work.
4409 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4411 *) Make it possible to produce shared libraries on ReliantUNIX.
4412 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4414 *) Add the configuration target debug-linux-ppro.
4415 Make 'openssl rsa' use the general key loading routines
4416 implemented in apps.c, and make those routines able to
4417 handle the key format FORMAT_NETSCAPE and the variant
4419 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4421 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4422 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4424 *) Add -keyform to rsautl, and document -engine.
4425 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4427 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4428 BIO_R_NO_SUCH_FILE error code rather than the generic
4429 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4432 *) Add new functions
4434 ERR_peek_last_error_line
4435 ERR_peek_last_error_line_data.
4436 These are similar to
4439 ERR_peek_error_line_data,
4440 but report on the latest error recorded rather than the first one
4441 still in the error queue.
4442 [Ben Laurie, Bodo Moeller]
4444 *) default_algorithms option in ENGINE config module. This allows things
4446 default_algorithms = ALL
4447 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4450 *) Prelminary ENGINE config module.
4453 *) New experimental application configuration code.
4456 *) Change the AES code to follow the same name structure as all other
4457 symmetric ciphers, and behave the same way. Move everything to
4458 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4459 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4461 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4462 [Ben Laurie and Theo de Raadt]
4464 *) Add option to output public keys in req command.
4465 [Massimiliano Pala madwolf@openca.org]
4467 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4468 (up to about 10% better than before for P-192 and P-224).
4471 *) New functions/macros
4473 SSL_CTX_set_msg_callback(ctx, cb)
4474 SSL_CTX_set_msg_callback_arg(ctx, arg)
4475 SSL_set_msg_callback(ssl, cb)
4476 SSL_set_msg_callback_arg(ssl, arg)
4478 to request calling a callback function
4480 void cb(int write_p, int version, int content_type,
4481 const void *buf, size_t len, SSL *ssl, void *arg)
4483 whenever a protocol message has been completely received
4484 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4485 protocol version according to which the SSL library interprets
4486 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4487 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4488 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4489 specification (change_cipher_spec(20), alert(21), handshake(22)).
4490 'buf' and 'len' point to the actual message, 'ssl' to the
4491 SSL object, and 'arg' is the application-defined value set by
4492 SSL[_CTX]_set_msg_callback_arg().
4494 'openssl s_client' and 'openssl s_server' have new '-msg' options
4495 to enable a callback that displays all protocol messages.
4498 *) Change the shared library support so shared libraries are built as
4499 soon as the corresponding static library is finished, and thereby get
4500 openssl and the test programs linked against the shared library.
4501 This still only happens when the keyword "shard" has been given to
4502 the configuration scripts.
4504 NOTE: shared library support is still an experimental thing, and
4505 backward binary compatibility is still not guaranteed.
4506 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4508 *) Add support for Subject Information Access extension.
4509 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4511 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4512 additional bytes when new memory had to be allocated, not just
4513 when reusing an existing buffer.
4516 *) New command line and configuration option 'utf8' for the req command.
4517 This allows field values to be specified as UTF8 strings.
4520 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4521 runs for the former and machine-readable output for the latter.
4524 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4525 of the e-mail address in the DN (i.e., it will go into a certificate
4526 extension only). The new configuration file option 'email_in_dn = no'
4527 has the same effect.
4528 [Massimiliano Pala madwolf@openca.org]
4530 *) Change all functions with names starting with des_ to be starting
4531 with DES_ instead. Add wrappers that are compatible with libdes,
4532 but are named _ossl_old_des_*. Finally, add macros that map the
4533 des_* symbols to the corresponding _ossl_old_des_* if libdes
4534 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4535 desired, the des_* symbols will be mapped to DES_*, with one
4538 Since we provide two compatibility mappings, the user needs to
4539 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4540 compatibility is desired. The default (i.e., when that macro
4541 isn't defined) is OpenSSL 0.9.6c compatibility.
4543 There are also macros that enable and disable the support of old
4544 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4545 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4546 are defined, the default will apply: to support the old des routines.
4548 In either case, one must include openssl/des.h to get the correct
4549 definitions. Do not try to just include openssl/des_old.h, that
4552 NOTE: This is a major break of an old API into a new one. Software
4553 authors are encouraged to switch to the DES_ style functions. Some
4554 time in the future, des_old.h and the libdes compatibility functions
4555 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4556 default), and then completely removed.
4559 *) Test for certificates which contain unsupported critical extensions.
4560 If such a certificate is found during a verify operation it is
4561 rejected by default: this behaviour can be overridden by either
4562 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4563 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4564 X509_supported_extension() has also been added which returns 1 if a
4565 particular extension is supported.
4568 *) Modify the behaviour of EVP cipher functions in similar way to digests
4569 to retain compatibility with existing code.
4572 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4573 compatibility with existing code. In particular the 'ctx' parameter does
4574 not have to be to be initialized before the call to EVP_DigestInit() and
4575 it is tidied up after a call to EVP_DigestFinal(). New function
4576 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4577 EVP_MD_CTX_copy() changed to not require the destination to be
4578 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4579 requires the destination to be valid.
4581 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4582 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4585 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4586 so that complete 'Handshake' protocol structures are kept in memory
4587 instead of overwriting 'msg_type' and 'length' with 'body' data.
4590 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4591 [Massimo Santin via Richard Levitte]
4593 *) Major restructuring to the underlying ENGINE code. This includes
4594 reduction of linker bloat, separation of pure "ENGINE" manipulation
4595 (initialisation, etc) from functionality dealing with implementations
4596 of specific crypto iterfaces. This change also introduces integrated
4597 support for symmetric ciphers and digest implementations - so ENGINEs
4598 can now accelerate these by providing EVP_CIPHER and EVP_MD
4599 implementations of their own. This is detailed in crypto/engine/README
4600 as it couldn't be adequately described here. However, there are a few
4601 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4602 were changed in the original introduction of ENGINE code have now
4603 reverted back - the hooking from this code to ENGINE is now a good
4604 deal more passive and at run-time, operations deal directly with
4605 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4606 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4607 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4608 they were not being used by the framework as there is no concept of a
4609 BIGNUM_METHOD and they could not be generalised to the new
4610 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4611 ENGINE_cpy() has been removed as it cannot be consistently defined in
4615 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4618 *) Change mkdef.pl to sort symbols that get the same entry number,
4619 and make sure the automatically generated functions ERR_load_*
4620 become part of libeay.num as well.
4623 *) New function SSL_renegotiate_pending(). This returns true once
4624 renegotiation has been requested (either SSL_renegotiate() call
4625 or HelloRequest/ClientHello receveived from the peer) and becomes
4626 false once a handshake has been completed.
4627 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4628 sends a HelloRequest, but does not ensure that a handshake takes
4629 place. SSL_renegotiate_pending() is useful for checking if the
4630 client has followed the request.)
4633 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4634 By default, clients may request session resumption even during
4635 renegotiation (if session ID contexts permit); with this option,
4636 session resumption is possible only in the first handshake.
4638 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4639 more bits available for options that should not be part of
4640 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4643 *) Add some demos for certificate and certificate request creation.
4646 *) Make maximum certificate chain size accepted from the peer application
4647 settable (SSL*_get/set_max_cert_list()), as proposed by
4648 "Douglas E. Engert" <deengert@anl.gov>.
4651 *) Add support for shared libraries for Unixware-7
4652 (Boyd Lynn Gerber <gerberb@zenez.com>).
4655 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4656 be done prior to destruction. Use this to unload error strings from
4657 ENGINEs that load their own error strings. NB: This adds two new API
4658 functions to "get" and "set" this destroy handler in an ENGINE.
4661 *) Alter all existing ENGINE implementations (except "openssl" and
4662 "openbsd") to dynamically instantiate their own error strings. This
4663 makes them more flexible to be built both as statically-linked ENGINEs
4664 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4665 Also, add stub code to each that makes building them as self-contained
4666 shared-libraries easier (see README.ENGINE).
4669 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4670 implementations into applications that are completely implemented in
4671 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4672 commands that can be used to configure what shared-library to load and
4673 to control aspects of the way it is handled. Also, made an update to
4674 the README.ENGINE file that brings its information up-to-date and
4675 provides some information and instructions on the "dynamic" ENGINE
4676 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4679 *) Make it possible to unload ranges of ERR strings with a new
4680 "ERR_unload_strings" function.
4683 *) Add a copy() function to EVP_MD.
4686 *) Make EVP_MD routines take a context pointer instead of just the
4687 md_data void pointer.
4690 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4691 that the digest can only process a single chunk of data
4692 (typically because it is provided by a piece of
4693 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4694 is only going to provide a single chunk of data, and hence the
4695 framework needn't accumulate the data for oneshot drivers.
4698 *) As with "ERR", make it possible to replace the underlying "ex_data"
4699 functions. This change also alters the storage and management of global
4700 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4701 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4702 index counters. The API functions that use this state have been changed
4703 to take a "class_index" rather than pointers to the class's local STACK
4704 and counter, and there is now an API function to dynamically create new
4705 classes. This centralisation allows us to (a) plug a lot of the
4706 thread-safety problems that existed, and (b) makes it possible to clean
4707 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4708 such data would previously have always leaked in application code and
4709 workarounds were in place to make the memory debugging turn a blind eye
4710 to it. Application code that doesn't use this new function will still
4711 leak as before, but their memory debugging output will announce it now
4712 rather than letting it slide.
4714 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4715 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4716 has a return value to indicate success or failure.
4719 *) Make it possible to replace the underlying "ERR" functions such that the
4720 global state (2 LHASH tables and 2 locks) is only used by the "default"
4721 implementation. This change also adds two functions to "get" and "set"
4722 the implementation prior to it being automatically set the first time
4723 any other ERR function takes place. Ie. an application can call "get",
4724 pass the return value to a module it has just loaded, and that module
4725 can call its own "set" function using that value. This means the
4726 module's "ERR" operations will use (and modify) the error state in the
4727 application and not in its own statically linked copy of OpenSSL code.
4730 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4731 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4732 the operation, and provides a more encapsulated way for external code
4733 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4734 to use these functions rather than manually incrementing the counts.
4736 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4739 *) Add EVP test program.
4742 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4745 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4746 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4747 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4748 These allow a CRL to be built without having to access X509_CRL fields
4749 directly. Modify 'ca' application to use new functions.
4752 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4753 bug workarounds. Rollback attack detection is a security feature.
4754 The problem will only arise on OpenSSL servers when TLSv1 is not
4755 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4756 Software authors not wanting to support TLSv1 will have special reasons
4757 for their choice and can explicitly enable this option.
4758 [Bodo Moeller, Lutz Jaenicke]
4760 *) Rationalise EVP so it can be extended: don't include a union of
4761 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4762 (similar to those existing for EVP_CIPHER_CTX).
4767 EVP_MD_CTX_init(&md); /* new function call */
4768 EVP_DigestInit(&md, EVP_sha1());
4769 EVP_DigestUpdate(&md, in, len);
4770 EVP_DigestFinal(&md, out, NULL);
4771 EVP_MD_CTX_cleanup(&md); /* new function call */
4775 *) Make DES key schedule conform to the usual scheme, as well as
4776 correcting its structure. This means that calls to DES functions
4777 now have to pass a pointer to a des_key_schedule instead of a
4778 plain des_key_schedule (which was actually always a pointer
4781 des_key_schedule ks;
4783 des_set_key_checked(..., &ks);
4784 des_ncbc_encrypt(..., &ks, ...);
4786 (Note that a later change renames 'des_...' into 'DES_...'.)
4789 *) Initial reduction of linker bloat: the use of some functions, such as
4790 PEM causes large amounts of unused functions to be linked in due to
4791 poor organisation. For example pem_all.c contains every PEM function
4792 which has a knock on effect of linking in large amounts of (unused)
4793 ASN1 code. Grouping together similar functions and splitting unrelated
4794 functions prevents this.
4797 *) Cleanup of EVP macros.
4800 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4801 correct _ecb suffix.
4804 *) Add initial OCSP responder support to ocsp application. The
4805 revocation information is handled using the text based index
4806 use by the ca application. The responder can either handle
4807 requests generated internally, supplied in files (for example
4808 via a CGI script) or using an internal minimal server.
4811 *) Add configuration choices to get zlib compression for TLS.
4814 *) Changes to Kerberos SSL for RFC 2712 compliance:
4815 1. Implemented real KerberosWrapper, instead of just using
4816 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4817 2. Implemented optional authenticator field of KerberosWrapper.
4819 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4820 and authenticator structs; see crypto/krb5/.
4822 Generalized Kerberos calls to support multiple Kerberos libraries.
4823 [Vern Staats <staatsvr@asc.hpc.mil>,
4824 Jeffrey Altman <jaltman@columbia.edu>
4825 via Richard Levitte]
4827 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4828 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4829 values for each of the key sizes rather than having just
4830 parameters (and 'speed' generating keys each time).
4833 *) Speed up EVP routines.
4836 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4837 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4838 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4839 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4841 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4842 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4843 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4846 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4848 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4851 *) Added the OS2-EMX target.
4852 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4854 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4855 to support NCONF routines in extension code. New function CONF_set_nconf()
4856 to allow functions which take an NCONF to also handle the old LHASH
4857 structure: this means that the old CONF compatible routines can be
4858 retained (in particular wrt extensions) without having to duplicate the
4859 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4862 *) Enhance the general user interface with mechanisms for inner control
4863 and with possibilities to have yes/no kind of prompts.
4866 *) Change all calls to low level digest routines in the library and
4867 applications to use EVP. Add missing calls to HMAC_cleanup() and
4868 don't assume HMAC_CTX can be copied using memcpy().
4869 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4871 *) Add the possibility to control engines through control names but with
4872 arbitrary arguments instead of just a string.
4873 Change the key loaders to take a UI_METHOD instead of a callback
4874 function pointer. NOTE: this breaks binary compatibility with earlier
4875 versions of OpenSSL [engine].
4876 Adapt the nCipher code for these new conditions and add a card insertion
4880 *) Enhance the general user interface with mechanisms to better support
4881 dialog box interfaces, application-defined prompts, the possibility
4882 to use defaults (for example default passwords from somewhere else)
4883 and interrupts/cancellations.
4886 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4887 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4890 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4891 tidy up some unnecessarily weird code in 'sk_new()').
4892 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4894 *) Change the key loading routines for ENGINEs to use the same kind
4895 callback (pem_password_cb) as all other routines that need this
4899 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4900 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4901 than this minimum value is recommended.
4904 *) New random seeder for OpenVMS, using the system process statistics
4905 that are easily reachable.
4908 *) Windows apparently can't transparently handle global
4909 variables defined in DLLs. Initialisations such as:
4911 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4913 wont compile. This is used by the any applications that need to
4914 declare their own ASN1 modules. This was fixed by adding the option
4915 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4916 needed for static libraries under Win32.
4919 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4920 setting of purpose and trust fields. New X509_STORE trust and
4921 purpose functions and tidy up setting in other SSL functions.
4924 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4925 structure. These are inherited by X509_STORE_CTX when it is
4926 initialised. This allows various defaults to be set in the
4927 X509_STORE structure (such as flags for CRL checking and custom
4928 purpose or trust settings) for functions which only use X509_STORE_CTX
4929 internally such as S/MIME.
4931 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4932 trust settings if they are not set in X509_STORE. This allows X509_STORE
4933 purposes and trust (in S/MIME for example) to override any set by default.
4935 Add command line options for CRL checking to smime, s_client and s_server
4939 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4940 are set then the CRL is looked up in the X509_STORE structure and
4941 its validity and signature checked, then if the certificate is found
4942 in the CRL the verify fails with a revoked error.
4944 Various new CRL related callbacks added to X509_STORE_CTX structure.
4946 Command line options added to 'verify' application to support this.
4948 This needs some additional work, such as being able to handle multiple
4949 CRLs with different times, extension based lookup (rather than just
4950 by subject name) and ultimately more complete V2 CRL extension
4954 *) Add a general user interface API (crypto/ui/). This is designed
4955 to replace things like des_read_password and friends (backward
4956 compatibility functions using this new API are provided).
4957 The purpose is to remove prompting functions from the DES code
4958 section as well as provide for prompting through dialog boxes in
4959 a window system and the like.
4962 *) Add "ex_data" support to ENGINE so implementations can add state at a
4963 per-structure level rather than having to store it globally.
4966 *) Make it possible for ENGINE structures to be copied when retrieved by
4967 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4968 This causes the "original" ENGINE structure to act like a template,
4969 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4970 operational state can be localised to each ENGINE structure, despite the
4971 fact they all share the same "methods". New ENGINE structures returned in
4972 this case have no functional references and the return value is the single
4973 structural reference. This matches the single structural reference returned
4974 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4978 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4979 needs to match any other type at all we need to manually clear the
4983 *) Changes to the "openssl engine" utility to include;
4984 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4985 about an ENGINE's available control commands.
4986 - executing control commands from command line arguments using the
4987 '-pre' and '-post' switches. '-post' is only used if '-t' is
4988 specified and the ENGINE is successfully initialised. The syntax for
4989 the individual commands are colon-separated, for example;
4990 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4993 *) New dynamic control command support for ENGINEs. ENGINEs can now
4994 declare their own commands (numbers), names (strings), descriptions,
4995 and input types for run-time discovery by calling applications. A
4996 subset of these commands are implicitly classed as "executable"
4997 depending on their input type, and only these can be invoked through
4998 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4999 can be based on user input, config files, etc). The distinction is
5000 that "executable" commands cannot return anything other than a boolean
5001 result and can only support numeric or string input, whereas some
5002 discoverable commands may only be for direct use through
5003 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5004 pointers, or other custom uses. The "executable" commands are to
5005 support parameterisations of ENGINE behaviour that can be
5006 unambiguously defined by ENGINEs and used consistently across any
5007 OpenSSL-based application. Commands have been added to all the
5008 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5009 control over shared-library paths without source code alterations.
5012 *) Changed all ENGINE implementations to dynamically allocate their
5013 ENGINEs rather than declaring them statically. Apart from this being
5014 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5015 this also allows the implementations to compile without using the
5016 internal engine_int.h header.
5019 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5020 'const' value. Any code that should be able to modify a RAND_METHOD
5021 should already have non-const pointers to it (ie. they should only
5022 modify their own ones).
5025 *) Made a variety of little tweaks to the ENGINE code.
5026 - "atalla" and "ubsec" string definitions were moved from header files
5027 to C code. "nuron" string definitions were placed in variables
5028 rather than hard-coded - allowing parameterisation of these values
5029 later on via ctrl() commands.
5030 - Removed unused "#if 0"'d code.
5031 - Fixed engine list iteration code so it uses ENGINE_free() to release
5032 structural references.
5033 - Constified the RAND_METHOD element of ENGINE structures.
5034 - Constified various get/set functions as appropriate and added
5035 missing functions (including a catch-all ENGINE_cpy that duplicates
5036 all ENGINE values onto a new ENGINE except reference counts/state).
5037 - Removed NULL parameter checks in get/set functions. Setting a method
5038 or function to NULL is a way of cancelling out a previously set
5039 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5040 and doesn't justify the extra error symbols and code.
5041 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5042 flags from engine_int.h to engine.h.
5043 - Changed prototypes for ENGINE handler functions (init(), finish(),
5044 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5047 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5048 to the algorithm using long division. The binary algorithm can be
5049 used only if the modulus is odd. On 32-bit systems, it is faster
5050 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5051 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5052 up to 450 bits. In 64-bit environments, the binary algorithm
5053 appears to be advantageous for much longer moduli; here we use it
5054 for moduli up to 2048 bits.
5057 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5058 could not support the combine flag in choice fields.
5061 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5062 extensions from a certificate request to the certificate.
5065 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5066 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5067 file: this allows the display of the certificate about to be
5068 signed to be customised, to allow certain fields to be included
5069 or excluded and extension details. The old system didn't display
5070 multicharacter strings properly, omitted fields not in the policy
5071 and couldn't display additional details such as extensions.
5074 *) Function EC_POINTs_mul for multiple scalar multiplication
5075 of an arbitrary number of elliptic curve points
5076 \sum scalars[i]*points[i],
5077 optionally including the generator defined for the EC_GROUP:
5078 scalar*generator + \sum scalars[i]*points[i].
5080 EC_POINT_mul is a simple wrapper function for the typical case
5081 that the point list has just one item (besides the optional
5085 *) First EC_METHODs for curves over GF(p):
5087 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5088 operations and provides various method functions that can also
5089 operate with faster implementations of modular arithmetic.
5091 EC_GFp_mont_method() reuses most functions that are part of
5092 EC_GFp_simple_method, but uses Montgomery arithmetic.
5094 [Bodo Moeller; point addition and point doubling
5095 implementation directly derived from source code provided by
5096 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5098 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5099 crypto/ec/ec_lib.c):
5101 Curves are EC_GROUP objects (with an optional group generator)
5102 based on EC_METHODs that are built into the library.
5104 Points are EC_POINT objects based on EC_GROUP objects.
5106 Most of the framework would be able to handle curves over arbitrary
5107 finite fields, but as there are no obvious types for fields other
5108 than GF(p), some functions are limited to that for now.
5111 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5112 that the file contains a complete HTTP response.
5115 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5116 change the def and num file printf format specifier from "%-40sXXX"
5117 to "%-39s XXX". The latter will always guarantee a space after the
5118 field while the former will cause them to run together if the field
5119 is 40 of more characters long.
5122 *) Constify the cipher and digest 'method' functions and structures
5123 and modify related functions to take constant EVP_MD and EVP_CIPHER
5127 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5128 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5131 *) Modify EVP_Digest*() routines so they now return values. Although the
5132 internal software routines can never fail additional hardware versions
5136 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5138 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5139 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5142 ERR_R_NESTED_ASN1_ERROR
5144 ERR_R_MISSING_ASN1_EOS
5145 were 4 .. 9, conflicting with
5146 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5148 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5149 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5151 Add new error code 'ERR_R_INTERNAL_ERROR'.
5154 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5158 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5159 sets the subject name for a new request or supersedes the
5160 subject name in a given request. Formats that can be parsed are
5161 'CN=Some Name, OU=myOU, C=IT'
5163 'CN=Some Name/OU=myOU/C=IT'.
5165 Add options '-batch' and '-verbose' to 'openssl req'.
5166 [Massimiliano Pala <madwolf@hackmasters.net>]
5168 *) Introduce the possibility to access global variables through
5169 functions on platform were that's the best way to handle exporting
5170 global variables in shared libraries. To enable this functionality,
5171 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5172 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5173 is normally done by Configure or something similar).
5175 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5176 in the source file (foo.c) like this:
5178 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5179 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5181 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5182 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5184 OPENSSL_DECLARE_GLOBAL(int,foo);
5185 #define foo OPENSSL_GLOBAL_REF(foo)
5186 OPENSSL_DECLARE_GLOBAL(double,bar);
5187 #define bar OPENSSL_GLOBAL_REF(bar)
5189 The #defines are very important, and therefore so is including the
5190 header file everywhere where the defined globals are used.
5192 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5193 of ASN.1 items, but that structure is a bit different.
5195 The largest change is in util/mkdef.pl which has been enhanced with
5196 better and easier to understand logic to choose which symbols should
5197 go into the Windows .def files as well as a number of fixes and code
5198 cleanup (among others, algorithm keywords are now sorted
5199 lexicographically to avoid constant rewrites).
5202 *) In BN_div() keep a copy of the sign of 'num' before writing the
5203 result to 'rm' because if rm==num the value will be overwritten
5204 and produce the wrong result if 'num' is negative: this caused
5205 problems with BN_mod() and BN_nnmod().
5208 *) Function OCSP_request_verify(). This checks the signature on an
5209 OCSP request and verifies the signer certificate. The signer
5210 certificate is just checked for a generic purpose and OCSP request
5214 *) Add OCSP_check_validity() function to check the validity of OCSP
5215 responses. OCSP responses are prepared in real time and may only
5216 be a few seconds old. Simply checking that the current time lies
5217 between thisUpdate and nextUpdate max reject otherwise valid responses
5218 caused by either OCSP responder or client clock inaccuracy. Instead
5219 we allow thisUpdate and nextUpdate to fall within a certain period of
5220 the current time. The age of the response can also optionally be
5221 checked. Two new options -validity_period and -status_age added to
5225 *) If signature or public key algorithm is unrecognized print out its
5226 OID rather that just UNKNOWN.
5229 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5230 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5231 ID to be generated from the issuer certificate alone which can then be
5232 passed to OCSP_id_issuer_cmp().
5235 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5236 ASN1 modules to export functions returning ASN1_ITEM pointers
5237 instead of the ASN1_ITEM structures themselves. This adds several
5238 new macros which allow the underlying ASN1 function/structure to
5239 be accessed transparently. As a result code should not use ASN1_ITEM
5240 references directly (such as &X509_it) but instead use the relevant
5241 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5242 use of the new ASN1 code on platforms where exporting structures
5243 is problematical (for example in shared libraries) but exporting
5244 functions returning pointers to structures is not.
5247 *) Add support for overriding the generation of SSL/TLS session IDs.
5248 These callbacks can be registered either in an SSL_CTX or per SSL.
5249 The purpose of this is to allow applications to control, if they wish,
5250 the arbitrary values chosen for use as session IDs, particularly as it
5251 can be useful for session caching in multiple-server environments. A
5252 command-line switch for testing this (and any client code that wishes
5253 to use such a feature) has been added to "s_server".
5254 [Geoff Thorpe, Lutz Jaenicke]
5256 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5257 of the form '#if defined(...) || defined(...) || ...' and
5258 '#if !defined(...) && !defined(...) && ...'. This also avoids
5259 the growing number of special cases it was previously handling.
5262 *) Make all configuration macros available for application by making
5263 sure they are available in opensslconf.h, by giving them names starting
5264 with "OPENSSL_" to avoid conflicts with other packages and by making
5265 sure e_os2.h will cover all platform-specific cases together with
5267 Additionally, it is now possible to define configuration/platform-
5268 specific names (called "system identities"). In the C code, these
5269 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5270 macro with the name beginning with "OPENSSL_SYS_", which is determined
5271 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5275 *) New option -set_serial to 'req' and 'x509' this allows the serial
5276 number to use to be specified on the command line. Previously self
5277 signed certificates were hard coded with serial number 0 and the
5278 CA options of 'x509' had to use a serial number in a file which was
5282 *) New options to 'ca' utility to support V2 CRL entry extensions.
5283 Currently CRL reason, invalidity date and hold instruction are
5284 supported. Add new CRL extensions to V3 code and some new objects.
5287 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5288 disable standard block padding (aka PKCS#5 padding) in the EVP
5289 API, which was previously mandatory. This means that the data is
5290 not padded in any way and so the total length much be a multiple
5291 of the block size, otherwise an error occurs.
5294 *) Initial (incomplete) OCSP SSL support.
5297 *) New function OCSP_parse_url(). This splits up a URL into its host,
5298 port and path components: primarily to parse OCSP URLs. New -url
5299 option to ocsp utility.
5302 *) New nonce behavior. The return value of OCSP_check_nonce() now
5303 reflects the various checks performed. Applications can decide
5304 whether to tolerate certain situations such as an absent nonce
5305 in a response when one was present in a request: the ocsp application
5306 just prints out a warning. New function OCSP_add1_basic_nonce()
5307 this is to allow responders to include a nonce in a response even if
5308 the request is nonce-less.
5311 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5312 skipped when using openssl x509 multiple times on a single input file,
5313 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5316 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5317 set string type: to handle setting ASN1_TIME structures. Fix ca
5318 utility to correctly initialize revocation date of CRLs.
5321 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5322 the clients preferred ciphersuites and rather use its own preferences.
5323 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5324 Internet Explorer by ensuring unchanged hash method during stepup.
5325 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5328 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5329 to aes and add a new 'exist' option to print out symbols that don't
5333 *) Additional options to ocsp utility to allow flags to be set and
5334 additional certificates supplied.
5337 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5338 OCSP client a number of certificate to only verify the response
5342 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5343 handle the new API. Currently only ECB, CBC modes supported. Add new
5346 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5347 Encryption Standard (AES) Ciphersuites for Transport Layer
5348 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5349 not enabled by default and were not part of the "ALL" ciphersuite
5350 alias because they were not yet official; they could be
5351 explicitly requested by specifying the "AESdraft" ciphersuite
5352 group alias. In the final release of OpenSSL 0.9.7, the group
5353 alias is called "AES" and is part of "ALL".)
5354 [Ben Laurie, Steve Henson, Bodo Moeller]
5356 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5357 request to response.
5360 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5361 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5362 extract information from a certificate request. OCSP_response_create()
5363 creates a response and optionally adds a basic response structure.
5364 OCSP_basic_add1_status() adds a complete single response to a basic
5365 response and returns the OCSP_SINGLERESP structure just added (to allow
5366 extensions to be included for example). OCSP_basic_add1_cert() adds a
5367 certificate to a basic response and OCSP_basic_sign() signs a basic
5368 response with various flags. New helper functions ASN1_TIME_check()
5369 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5370 (converts ASN1_TIME to GeneralizedTime).
5373 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5374 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5375 structure from a certificate. X509_pubkey_digest() digests the public_key
5376 contents: this is used in various key identifiers.
5379 *) Make sk_sort() tolerate a NULL argument.
5380 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5382 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5383 passed by the function are trusted implicitly. If any of them signed the
5384 response then it is assumed to be valid and is not verified.
5387 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5388 to data. This was previously part of the PKCS7 ASN1 code. This
5389 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5390 [Steve Henson, reported by Kenneth R. Robinette
5391 <support@securenetterm.com>]
5393 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5394 routines: without these tracing memory leaks is very painful.
5395 Fix leaks in PKCS12 and PKCS7 routines.
5398 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5399 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5400 effectively meant GeneralizedTime would never be used. Now it
5401 is initialised to -1 but X509_time_adj() now has to check the value
5402 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5403 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5404 [Steve Henson, reported by Kenneth R. Robinette
5405 <support@securenetterm.com>]
5407 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5408 result in a zero length in the ASN1_INTEGER structure which was
5409 not consistent with the structure when d2i_ASN1_INTEGER() was used
5410 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5411 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5412 where it did not print out a minus for negative ASN1_INTEGER.
5415 *) Add summary printout to ocsp utility. The various functions which
5416 convert status values to strings have been renamed to:
5417 OCSP_response_status_str(), OCSP_cert_status_str() and
5418 OCSP_crl_reason_str() and are no longer static. New options
5419 to verify nonce values and to disable verification. OCSP response
5420 printout format cleaned up.
5423 *) Add additional OCSP certificate checks. These are those specified
5424 in RFC2560. This consists of two separate checks: the CA of the
5425 certificate being checked must either be the OCSP signer certificate
5426 or the issuer of the OCSP signer certificate. In the latter case the
5427 OCSP signer certificate must contain the OCSP signing extended key
5428 usage. This check is performed by attempting to match the OCSP
5429 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5430 in the OCSP_CERTID structures of the response.
5433 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5434 and related routines. This uses the standard OpenSSL certificate
5435 verify routines to perform initial checks (just CA validity) and
5436 to obtain the certificate chain. Then additional checks will be
5437 performed on the chain. Currently the root CA is checked to see
5438 if it is explicitly trusted for OCSP signing. This is used to set
5439 a root CA as a global signing root: that is any certificate that
5440 chains to that CA is an acceptable OCSP signing certificate.
5443 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5444 extensions from a separate configuration file.
5445 As when reading extensions from the main configuration file,
5446 the '-extensions ...' option may be used for specifying the
5448 [Massimiliano Pala <madwolf@comune.modena.it>]
5450 *) New OCSP utility. Allows OCSP requests to be generated or
5451 read. The request can be sent to a responder and the output
5452 parsed, outputed or printed in text form. Not complete yet:
5453 still needs to check the OCSP response validity.
5456 *) New subcommands for 'openssl ca':
5457 'openssl ca -status <serial>' prints the status of the cert with
5458 the given serial number (according to the index file).
5459 'openssl ca -updatedb' updates the expiry status of certificates
5461 [Massimiliano Pala <madwolf@comune.modena.it>]
5463 *) New '-newreq-nodes' command option to CA.pl. This is like
5464 '-newreq', but calls 'openssl req' with the '-nodes' option
5465 so that the resulting key is not encrypted.
5466 [Damien Miller <djm@mindrot.org>]
5468 *) New configuration for the GNU Hurd.
5469 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5471 *) Initial code to implement OCSP basic response verify. This
5472 is currently incomplete. Currently just finds the signer's
5473 certificate and verifies the signature on the response.
5476 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5477 value of OPENSSLDIR. This is available via the new '-d' option
5478 to 'openssl version', and is also included in 'openssl version -a'.
5481 *) Allowing defining memory allocation callbacks that will be given
5482 file name and line number information in additional arguments
5483 (a const char* and an int). The basic functionality remains, as
5484 well as the original possibility to just replace malloc(),
5485 realloc() and free() by functions that do not know about these
5486 additional arguments. To register and find out the current
5487 settings for extended allocation functions, the following
5488 functions are provided:
5490 CRYPTO_set_mem_ex_functions
5491 CRYPTO_set_locked_mem_ex_functions
5492 CRYPTO_get_mem_ex_functions
5493 CRYPTO_get_locked_mem_ex_functions
5495 These work the same way as CRYPTO_set_mem_functions and friends.
5496 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5497 extended allocation function is enabled.
5498 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5499 a conventional allocation function is enabled.
5500 [Richard Levitte, Bodo Moeller]
5502 *) Finish off removing the remaining LHASH function pointer casts.
5503 There should no longer be any prototype-casting required when using
5504 the LHASH abstraction, and any casts that remain are "bugs". See
5505 the callback types and macros at the head of lhash.h for details
5506 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5509 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5510 If /dev/[u]random devices are not available or do not return enough
5511 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5513 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5514 /etc/entropy will be queried once each in this sequence, quering stops
5515 when enough entropy was collected without querying more sockets.
5518 *) Change the Unix RAND_poll() variant to be able to poll several
5519 random devices, as specified by DEVRANDOM, until a sufficient amount
5520 of data has been collected. We spend at most 10 ms on each file
5521 (select timeout) and read in non-blocking mode. DEVRANDOM now
5522 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5523 (previously it was just the string "/dev/urandom"), so on typical
5524 platforms the 10 ms delay will never occur.
5525 Also separate out the Unix variant to its own file, rand_unix.c.
5526 For VMS, there's a currently-empty rand_vms.c.
5529 *) Move OCSP client related routines to ocsp_cl.c. These
5530 provide utility functions which an application needing
5531 to issue a request to an OCSP responder and analyse the
5532 response will typically need: as opposed to those which an
5533 OCSP responder itself would need which will be added later.
5535 OCSP_request_sign() signs an OCSP request with an API similar
5536 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5537 response. OCSP_response_get1_basic() extracts basic response
5538 from response. OCSP_resp_find_status(): finds and extracts status
5539 information from an OCSP_CERTID structure (which will be created
5540 when the request structure is built). These are built from lower
5541 level functions which work on OCSP_SINGLERESP structures but
5542 wont normally be used unless the application wishes to examine
5543 extensions in the OCSP response for example.
5545 Replace nonce routines with a pair of functions.
5546 OCSP_request_add1_nonce() adds a nonce value and optionally
5547 generates a random value. OCSP_check_nonce() checks the
5548 validity of the nonce in an OCSP response.
5551 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5552 This doesn't copy the supplied OCSP_CERTID and avoids the
5553 need to free up the newly created id. Change return type
5554 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5555 This can then be used to add extensions to the request.
5556 Deleted OCSP_request_new(), since most of its functionality
5557 is now in OCSP_REQUEST_new() (and the case insensitive name
5558 clash) apart from the ability to set the request name which
5559 will be added elsewhere.
5562 *) Update OCSP API. Remove obsolete extensions argument from
5563 various functions. Extensions are now handled using the new
5564 OCSP extension code. New simple OCSP HTTP function which
5565 can be used to send requests and parse the response.
5568 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5569 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5570 uses the special reorder version of SET OF to sort the attributes
5571 and reorder them to match the encoded order. This resolves a long
5572 standing problem: a verify on a PKCS7 structure just after signing
5573 it used to fail because the attribute order did not match the
5574 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5575 it uses the received order. This is necessary to tolerate some broken
5576 software that does not order SET OF. This is handled by encoding
5577 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5578 to produce the required SET OF.
5581 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5582 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5583 files to get correct declarations of the ASN.1 item variables.
5586 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5587 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5588 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5589 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5590 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5591 ASN1_ITEM and no wrapper functions.
5594 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5595 replace the old function pointer based I/O routines. Change most of
5596 the *_d2i_bio() and *_d2i_fp() functions to use these.
5599 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5600 lines, recognice more "algorithms" that can be deselected, and make
5601 it complain about algorithm deselection that isn't recognised.
5604 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5605 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5606 to use new functions. Add NO_ASN1_OLD which can be set to remove
5607 some old style ASN1 functions: this can be used to determine if old
5608 code will still work when these eventually go away.
5611 *) New extension functions for OCSP structures, these follow the
5612 same conventions as certificates and CRLs.
5615 *) New function X509V3_add1_i2d(). This automatically encodes and
5616 adds an extension. Its behaviour can be customised with various
5617 flags to append, replace or delete. Various wrappers added for
5618 certifcates and CRLs.
5621 *) Fix to avoid calling the underlying ASN1 print routine when
5622 an extension cannot be parsed. Correct a typo in the
5623 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5626 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5627 entries for variables.
5630 *) Add functionality to apps/openssl.c for detecting locking
5631 problems: As the program is single-threaded, all we have
5632 to do is register a locking callback using an array for
5633 storing which locks are currently held by the program.
5636 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5637 SSL_get_ex_data_X509_STORE_idx(), which is used in
5638 ssl_verify_cert_chain() and thus can be called at any time
5639 during TLS/SSL handshakes so that thread-safety is essential.
5640 Unfortunately, the ex_data design is not at all suited
5641 for multi-threaded use, so it probably should be abolished.
5644 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5645 [Broadcom, tweaked and integrated by Geoff Thorpe]
5647 *) Move common extension printing code to new function
5648 X509V3_print_extensions(). Reorganise OCSP print routines and
5649 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5652 *) New function X509_signature_print() to remove duplication in some
5656 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5657 set (this was treated exactly the same as SET OF previously). This
5658 is used to reorder the STACK representing the structure to match the
5659 encoding. This will be used to get round a problem where a PKCS7
5660 structure which was signed could not be verified because the STACK
5661 order did not reflect the encoded order.
5664 *) Reimplement the OCSP ASN1 module using the new code.
5667 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5668 for its ASN1 operations. The old style function pointers still exist
5669 for now but they will eventually go away.
5672 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5673 completely replaces the old ASN1 functionality with a table driven
5674 encoder and decoder which interprets an ASN1_ITEM structure describing
5675 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5676 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5677 has also been converted to the new form.
5680 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5681 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5682 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5683 for negative moduli.
5686 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5687 of not touching the result's sign bit.
5690 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5694 *) Changed the LHASH code to use prototypes for callbacks, and created
5695 macros to declare and implement thin (optionally static) functions
5696 that provide type-safety and avoid function pointer casting for the
5697 type-specific callbacks.
5700 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5702 [Veers Staats <staatsvr@asc.hpc.mil>,
5703 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5705 *) Reformat the FAQ so the different questions and answers can be divided
5706 in sections depending on the subject.
5709 *) Have the zlib compression code load ZLIB.DLL dynamically under
5713 *) New function BN_mod_sqrt for computing square roots modulo a prime
5714 (using the probabilistic Tonelli-Shanks algorithm unless
5715 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5716 be handled deterministically).
5717 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5719 *) Make BN_mod_inverse faster by explicitly handling small quotients
5720 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5721 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5724 *) New function BN_kronecker.
5727 *) Fix BN_gcd so that it works on negative inputs; the result is
5728 positive unless both parameters are zero.
5729 Previously something reasonably close to an infinite loop was
5730 possible because numbers could be growing instead of shrinking
5731 in the implementation of Euclid's algorithm.
5734 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5735 sign of the number in question.
5737 Fix BN_is_word(a,w) to work correctly for w == 0.
5739 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5740 because its test if the absolute value of 'a' equals 'w'.
5741 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5742 it exists mostly for use in the implementations of BN_is_zero(),
5743 BN_is_one(), and BN_is_word().
5746 *) New function BN_swap.
5749 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5750 the exponentiation functions are more likely to produce reasonable
5751 results on negative inputs.
5754 *) Change BN_mod_mul so that the result is always non-negative.
5755 Previously, it could be negative if one of the factors was negative;
5756 I don't think anyone really wanted that behaviour.
5759 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5760 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5761 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5762 and add new functions:
5771 BN_mod_lshift1_quick
5775 These functions always generate non-negative results.
5777 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5778 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5780 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5781 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5782 be reduced modulo m.
5783 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5786 The following entry accidentily appeared in the CHANGES file
5787 distributed with OpenSSL 0.9.7. The modifications described in
5788 it do *not* apply to OpenSSL 0.9.7.
5790 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5791 was actually never needed) and in BN_mul(). The removal in BN_mul()
5792 required a small change in bn_mul_part_recursive() and the addition
5793 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5794 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5795 bn_sub_words() and bn_add_words() except they take arrays with
5800 *) In 'openssl passwd', verify passwords read from the terminal
5801 unless the '-salt' option is used (which usually means that
5802 verification would just waste user's time since the resulting
5803 hash is going to be compared with some given password hash)
5804 or the new '-noverify' option is used.
5806 This is an incompatible change, but it does not affect
5807 non-interactive use of 'openssl passwd' (passwords on the command
5808 line, '-stdin' option, '-in ...' option) and thus should not
5812 *) Remove all references to RSAref, since there's no more need for it.
5815 *) Make DSO load along a path given through an environment variable
5816 (SHLIB_PATH) with shl_load().
5819 *) Constify the ENGINE code as a result of BIGNUM constification.
5820 Also constify the RSA code and most things related to it. In a
5821 few places, most notable in the depth of the ASN.1 code, ugly
5822 casts back to non-const were required (to be solved at a later
5826 *) Make it so the openssl application has all engines loaded by default.
5829 *) Constify the BIGNUM routines a little more.
5832 *) Add the following functions:
5834 ENGINE_load_cswift()
5836 ENGINE_load_atalla()
5838 ENGINE_load_builtin_engines()
5840 That way, an application can itself choose if external engines that
5841 are built-in in OpenSSL shall ever be used or not. The benefit is
5842 that applications won't have to be linked with libdl or other dso
5843 libraries unless it's really needed.
5845 Changed 'openssl engine' to load all engines on demand.
5846 Changed the engine header files to avoid the duplication of some
5847 declarations (they differed!).
5850 *) 'openssl engine' can now list capabilities.
5853 *) Better error reporting in 'openssl engine'.
5856 *) Never call load_dh_param(NULL) in s_server.
5859 *) Add engine application. It can currently list engines by name and
5860 identity, and test if they are actually available.
5863 *) Improve RPM specification file by forcing symbolic linking and making
5864 sure the installed documentation is also owned by root.root.
5865 [Damien Miller <djm@mindrot.org>]
5867 *) Give the OpenSSL applications more possibilities to make use of
5868 keys (public as well as private) handled by engines.
5871 *) Add OCSP code that comes from CertCo.
5874 *) Add VMS support for the Rijndael code.
5877 *) Added untested support for Nuron crypto accelerator.
5880 *) Add support for external cryptographic devices. This code was
5881 previously distributed separately as the "engine" branch.
5882 [Geoff Thorpe, Richard Levitte]
5884 *) Rework the filename-translation in the DSO code. It is now possible to
5885 have far greater control over how a "name" is turned into a filename
5886 depending on the operating environment and any oddities about the
5887 different shared library filenames on each system.
5890 *) Support threads on FreeBSD-elf in Configure.
5893 *) Fix for SHA1 assembly problem with MASM: it produces
5894 warnings about corrupt line number information when assembling
5895 with debugging information. This is caused by the overlapping
5897 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5900 NCONF_get_number() has no error checking at all. As a replacement,
5901 NCONF_get_number_e() is defined (_e for "error checking") and is
5902 promoted strongly. The old NCONF_get_number is kept around for
5903 binary backward compatibility.
5904 Make it possible for methods to load from something other than a BIO,
5905 by providing a function pointer that is given a name instead of a BIO.
5906 For example, this could be used to load configuration data from an
5910 *) Fix for non blocking accept BIOs. Added new I/O special reason
5911 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5912 with non blocking I/O was not possible because no retry code was
5913 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5917 *) Added the beginnings of Rijndael support.
5920 *) Fix for bug in DirectoryString mask setting. Add support for
5921 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5922 to allow certificate printing to more controllable, additional
5923 'certopt' option to 'x509' to allow new printing options to be
5927 *) Clean old EAY MD5 hack from e_os.h.
5930 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5932 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5933 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5934 [Joe Orton, Steve Henson]
5936 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5938 *) Fix additional bug revealed by the NISCC test suite:
5940 Stop bug triggering large recursion when presented with
5941 certain ASN.1 tags (CVE-2003-0851)
5944 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5946 *) Fix various bugs revealed by running the NISCC test suite:
5948 Stop out of bounds reads in the ASN1 code when presented with
5949 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5951 If verify callback ignores invalid public key errors don't try to check
5952 certificate signature with the NULL public key.
5956 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5957 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5961 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5962 extra data after the compression methods not only for TLS 1.0
5963 but also for SSL 3.0 (as required by the specification).
5964 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5966 *) Change X509_certificate_type() to mark the key as exported/exportable
5967 when it's 512 *bits* long, not 512 bytes.
5970 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5972 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5973 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5974 a protocol version number mismatch like a decryption error
5975 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5978 *) Turn on RSA blinding by default in the default implementation
5979 to avoid a timing attack. Applications that don't want it can call
5980 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5981 They would be ill-advised to do so in most cases.
5982 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5984 *) Change RSA blinding code so that it works when the PRNG is not
5985 seeded (in this case, the secret RSA exponent is abused as
5986 an unpredictable seed -- if it is not unpredictable, there
5987 is no point in blinding anyway). Make RSA blinding thread-safe
5988 by remembering the creator's thread ID in rsa->blinding and
5989 having all other threads use local one-time blinding factors
5990 (this requires more computation than sharing rsa->blinding, but
5991 avoids excessive locking; and if an RSA object is not shared
5992 between threads, blinding will still be very fast).
5995 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5997 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5998 via timing by performing a MAC computation even if incorrrect
5999 block cipher padding has been found. This is a countermeasure
6000 against active attacks where the attacker has to distinguish
6001 between bad padding and a MAC verification error. (CVE-2003-0078)
6003 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6004 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6005 Martin Vuagnoux (EPFL, Ilion)]
6007 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6009 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6010 memory from it's contents. This is done with a counter that will
6011 place alternating values in each byte. This can be used to solve
6012 two issues: 1) the removal of calls to memset() by highly optimizing
6013 compilers, and 2) cleansing with other values than 0, since those can
6014 be read through on certain media, for example a swap space on disk.
6017 *) Bugfix: client side session caching did not work with external caching,
6018 because the session->cipher setting was not restored when reloading
6019 from the external cache. This problem was masked, when
6020 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6021 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6024 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6025 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6026 [Zeev Lieber <zeev-l@yahoo.com>]
6028 *) Undo an undocumented change introduced in 0.9.6e which caused
6029 repeated calls to OpenSSL_add_all_ciphers() and
6030 OpenSSL_add_all_digests() to be ignored, even after calling
6034 *) Change the default configuration reader to deal with last line not
6035 being properly terminated.
6038 *) Change X509_NAME_cmp() so it applies the special rules on handling
6039 DN values that are of type PrintableString, as well as RDNs of type
6040 emailAddress where the value has the type ia5String.
6041 [stefank@valicert.com via Richard Levitte]
6043 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6044 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6045 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6046 the bitwise-OR of the two for use by the majority of applications
6047 wanting this behaviour, and update the docs. The documented
6048 behaviour and actual behaviour were inconsistent and had been
6049 changing anyway, so this is more a bug-fix than a behavioural
6051 [Geoff Thorpe, diagnosed by Nadav Har'El]
6053 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6054 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6057 *) Fix initialization code race conditions in
6058 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6059 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6060 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6061 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6062 ssl2_get_cipher_by_char(),
6063 ssl3_get_cipher_by_char().
6064 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6066 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6067 the cached sessions are flushed, as the remove_cb() might use ex_data
6068 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6069 (see [openssl.org #212]).
6070 [Geoff Thorpe, Lutz Jaenicke]
6072 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6073 length, instead of the encoding length to d2i_ASN1_OBJECT.
6076 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6078 *) [In 0.9.6g-engine release:]
6079 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6080 [Lynn Gazis <lgazis@rainbow.com>]
6082 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6084 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6085 and get fix the header length calculation.
6086 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6087 Alon Kantor <alonk@checkpoint.com> (and others),
6090 *) Use proper error handling instead of 'assertions' in buffer
6091 overflow checks added in 0.9.6e. This prevents DoS (the
6092 assertions could call abort()).
6093 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6095 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6097 *) Add various sanity checks to asn1_get_length() to reject
6098 the ASN1 length bytes if they exceed sizeof(long), will appear
6099 negative or the content length exceeds the length of the
6101 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6103 *) Fix cipher selection routines: ciphers without encryption had no flags
6104 for the cipher strength set and where therefore not handled correctly
6105 by the selection routines (PR #130).
6108 *) Fix EVP_dsa_sha macro.
6112 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6113 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6114 that was added in OpenSSL 0.9.6d.
6116 As the countermeasure turned out to be incompatible with some
6117 broken SSL implementations, the new option is part of SSL_OP_ALL.
6118 SSL_OP_ALL is usually employed when compatibility with weird SSL
6119 implementations is desired (e.g. '-bugs' option to 's_client' and
6120 's_server'), so the new option is automatically set in many
6124 *) Changes in security patch:
6126 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6127 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6128 Air Force Materiel Command, USAF, under agreement number
6131 *) Add various sanity checks to asn1_get_length() to reject
6132 the ASN1 length bytes if they exceed sizeof(long), will appear
6133 negative or the content length exceeds the length of the
6134 supplied buffer. (CVE-2002-0659)
6135 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6137 *) Assertions for various potential buffer overflows, not known to
6139 [Ben Laurie (CHATS)]
6141 *) Various temporary buffers to hold ASCII versions of integers were
6142 too small for 64 bit platforms. (CVE-2002-0655)
6143 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6145 *) Remote buffer overflow in SSL3 protocol - an attacker could
6146 supply an oversized session ID to a client. (CVE-2002-0656)
6147 [Ben Laurie (CHATS)]
6149 *) Remote buffer overflow in SSL2 protocol - an attacker could
6150 supply an oversized client master key. (CVE-2002-0656)
6151 [Ben Laurie (CHATS)]
6153 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6155 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6156 encoded as NULL) with id-dsa-with-sha1.
6157 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6159 *) Check various X509_...() return values in apps/req.c.
6160 [Nils Larsch <nla@trustcenter.de>]
6162 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6163 an end-of-file condition would erronously be flagged, when the CRLF
6164 was just at the end of a processed block. The bug was discovered when
6165 processing data through a buffering memory BIO handing the data to a
6166 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6167 <ptsekov@syntrex.com> and Nedelcho Stanev.
6170 *) Implement a countermeasure against a vulnerability recently found
6171 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6172 before application data chunks to avoid the use of known IVs
6173 with data potentially chosen by the attacker.
6176 *) Fix length checks in ssl3_get_client_hello().
6179 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6180 to prevent ssl3_read_internal() from incorrectly assuming that
6181 ssl3_read_bytes() found application data while handshake
6182 processing was enabled when in fact s->s3->in_read_app_data was
6183 merely automatically cleared during the initial handshake.
6184 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6186 *) Fix object definitions for Private and Enterprise: they were not
6187 recognized in their shortname (=lowercase) representation. Extend
6188 obj_dat.pl to issue an error when using undefined keywords instead
6189 of silently ignoring the problem (Svenning Sorensen
6190 <sss@sss.dnsalias.net>).
6193 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6194 generators, i.e. generators other than 2 and 5. (Previously, the
6195 code did not properly initialise the 'add' and 'rem' values to
6196 BN_generate_prime().)
6198 In the new general case, we do not insist that 'generator' is
6199 actually a primitive root: This requirement is rather pointless;
6200 a generator of the order-q subgroup is just as good, if not
6204 *) Map new X509 verification errors to alerts. Discovered and submitted by
6205 Tom Wu <tom@arcot.com>.
6208 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6209 returning non-zero before the data has been completely received
6210 when using non-blocking I/O.
6211 [Bodo Moeller; problem pointed out by John Hughes]
6213 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6214 [Ben Laurie, Lutz Jaenicke]
6216 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6217 Yoram Zahavi <YoramZ@gilian.com>).
6220 *) Add information about CygWin 1.3 and on, and preserve proper
6221 configuration for the versions before that.
6222 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6224 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6225 check whether we deal with a copy of a session and do not delete from
6226 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6227 <izhar@checkpoint.com>.
6230 *) Do not store session data into the internal session cache, if it
6231 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6232 flag is set). Proposed by Aslam <aslam@funk.com>.
6235 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6239 *) [In 0.9.6d-engine release:]
6240 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6241 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6243 *) Add the configuration target linux-s390x.
6244 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6246 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6247 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6248 variable as an indication that a ClientHello message has been
6249 received. As the flag value will be lost between multiple
6250 invocations of ssl3_accept when using non-blocking I/O, the
6251 function may not be aware that a handshake has actually taken
6252 place, thus preventing a new session from being added to the
6255 To avoid this problem, we now set s->new_session to 2 instead of
6256 using a local variable.
6257 [Lutz Jaenicke, Bodo Moeller]
6259 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6260 if the SSL_R_LENGTH_MISMATCH error is detected.
6261 [Geoff Thorpe, Bodo Moeller]
6263 *) New 'shared_ldflag' column in Configure platform table.
6266 *) Fix EVP_CIPHER_mode macro.
6267 ["Dan S. Camper" <dan@bti.net>]
6269 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6270 type, we must throw them away by setting rr->length to 0.
6271 [D P Chang <dpc@qualys.com>]
6273 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6275 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6276 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6277 worked incorrectly for those cases where range = 10..._2 and
6278 3*range is two bits longer than range.)
6281 *) Only add signing time to PKCS7 structures if it is not already
6285 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6286 OBJ_ld_ce should be OBJ_id_ce.
6287 Also some ip-pda OIDs in crypto/objects/objects.txt were
6288 incorrect (cf. RFC 3039).
6289 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6291 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6292 returns early because it has nothing to do.
6293 [Andy Schneider <andy.schneider@bjss.co.uk>]
6295 *) [In 0.9.6c-engine release:]
6296 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6297 [Andy Schneider <andy.schneider@bjss.co.uk>]
6299 *) [In 0.9.6c-engine release:]
6300 Add support for Cryptographic Appliance's keyserver technology.
6301 (Use engine 'keyclient')
6302 [Cryptographic Appliances and Geoff Thorpe]
6304 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6305 is called via tools/c89.sh because arguments have to be
6306 rearranged (all '-L' options must appear before the first object
6308 [Richard Shapiro <rshapiro@abinitio.com>]
6310 *) [In 0.9.6c-engine release:]
6311 Add support for Broadcom crypto accelerator cards, backported
6313 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6315 *) [In 0.9.6c-engine release:]
6316 Add support for SureWare crypto accelerator cards from
6317 Baltimore Technologies. (Use engine 'sureware')
6318 [Baltimore Technologies and Mark Cox]
6320 *) [In 0.9.6c-engine release:]
6321 Add support for crypto accelerator cards from Accelerated
6322 Encryption Processing, www.aep.ie. (Use engine 'aep')
6323 [AEP Inc. and Mark Cox]
6325 *) Add a configuration entry for gcc on UnixWare.
6326 [Gary Benson <gbenson@redhat.com>]
6328 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6329 messages are stored in a single piece (fixed-length part and
6330 variable-length part combined) and fix various bugs found on the way.
6333 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6334 instead. BIO_gethostbyname() does not know what timeouts are
6335 appropriate, so entries would stay in cache even when they have
6337 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6339 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6340 faced with a pathologically small ClientHello fragment that does
6341 not contain client_version: Instead of aborting with an error,
6342 simply choose the highest available protocol version (i.e.,
6343 TLS 1.0 unless it is disabled). In practice, ClientHello
6344 messages are never sent like this, but this change gives us
6345 strictly correct behaviour at least for TLS.
6348 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6349 never resets s->method to s->ctx->method when called from within
6350 one of the SSL handshake functions.
6351 [Bodo Moeller; problem pointed out by Niko Baric]
6353 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6354 (sent using the client's version number) if client_version is
6355 smaller than the protocol version in use. Also change
6356 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6357 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6358 the client will at least see that alert.
6361 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6365 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6366 client receives HelloRequest while in a handshake.
6367 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6369 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6370 should end in 'break', not 'goto end' which circuments various
6371 cleanups done in state SSL_ST_OK. But session related stuff
6372 must be disabled for SSL_ST_OK in the case that we just sent a
6375 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6376 before just sending a HelloRequest.
6377 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6379 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6380 reveal whether illegal block cipher padding was found or a MAC
6381 verification error occured. (Neither SSLerr() codes nor alerts
6382 are directly visible to potential attackers, but the information
6383 may leak via logfiles.)
6385 Similar changes are not required for the SSL 2.0 implementation
6386 because the number of padding bytes is sent in clear for SSL 2.0,
6387 and the extra bytes are just ignored. However ssl/s2_pkt.c
6388 failed to verify that the purported number of padding bytes is in
6392 *) Add OpenUNIX-8 support including shared libraries
6393 (Boyd Lynn Gerber <gerberb@zenez.com>).
6396 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6397 'wristwatch attack' using huge encoding parameters (cf.
6398 James H. Manger's CRYPTO 2001 paper). Note that the
6399 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6400 encoding parameters and hence was not vulnerable.
6403 *) BN_sqr() bug fix.
6404 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6406 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6407 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6408 followed by modular reduction.
6409 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6411 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6412 equivalent based on BN_pseudo_rand() instead of BN_rand().
6415 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6416 This function was broken, as the check for a new client hello message
6417 to handle SGC did not allow these large messages.
6418 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6421 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6424 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6425 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6428 *) Rework the configuration and shared library support for Tru64 Unix.
6429 The configuration part makes use of modern compiler features and
6430 still retains old compiler behavior for those that run older versions
6431 of the OS. The shared library support part includes a variant that
6432 uses the RPATH feature, and is available through the special
6433 configuration target "alpha-cc-rpath", which will never be selected
6435 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6437 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6438 with the same message size as in ssl3_get_certificate_request().
6439 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6440 messages might inadvertently be reject as too long.
6441 [Petr Lampa <lampa@fee.vutbr.cz>]
6443 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6446 *) Modified SSL library such that the verify_callback that has been set
6447 specificly for an SSL object with SSL_set_verify() is actually being
6448 used. Before the change, a verify_callback set with this function was
6449 ignored and the verify_callback() set in the SSL_CTX at the time of
6450 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6451 to allow the necessary settings.
6454 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6455 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6456 done automatically (in contradiction to the requirements of the C
6457 standard). This made problems when used from OpenSSH.
6460 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6461 dh->length and always used
6463 BN_rand_range(priv_key, dh->p).
6465 BN_rand_range() is not necessary for Diffie-Hellman, and this
6466 specific range makes Diffie-Hellman unnecessarily inefficient if
6467 dh->length (recommended exponent length) is much smaller than the
6468 length of dh->p. We could use BN_rand_range() if the order of
6469 the subgroup was stored in the DH structure, but we only have
6474 BN_rand(priv_key, l, ...)
6476 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6482 RSA_eay_public_encrypt
6483 RSA_eay_private_decrypt
6484 RSA_eay_private_encrypt (signing)
6485 RSA_eay_public_decrypt (signature verification)
6487 (default implementations for RSA_public_encrypt,
6488 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6489 always reject numbers >= n.
6492 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6493 to synchronize access to 'locking_thread'. This is necessary on
6494 systems where access to 'locking_thread' (an 'unsigned long'
6495 variable) is not atomic.
6498 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6499 *before* setting the 'crypto_lock_rand' flag. The previous code had
6500 a race condition if 0 is a valid thread ID.
6501 [Travis Vitek <vitek@roguewave.com>]
6503 *) Add support for shared libraries under Irix.
6504 [Albert Chin-A-Young <china@thewrittenword.com>]
6506 *) Add configuration option to build on Linux on both big-endian and
6508 [Ralf Baechle <ralf@uni-koblenz.de>]
6510 *) Add the possibility to create shared libraries on HP-UX.
6513 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6515 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6516 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6517 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6518 PRNG state recovery was possible based on the output of
6519 one PRNG request appropriately sized to gain knowledge on
6520 'md' followed by enough consecutive 1-byte PRNG requests
6521 to traverse all of 'state'.
6523 1. When updating 'md_local' (the current thread's copy of 'md')
6524 during PRNG output generation, hash all of the previous
6525 'md_local' value, not just the half used for PRNG output.
6527 2. Make the number of bytes from 'state' included into the hash
6528 independent from the number of PRNG bytes requested.
6530 The first measure alone would be sufficient to avoid
6531 Markku-Juhani's attack. (Actually it had never occurred
6532 to me that the half of 'md_local' used for chaining was the
6533 half from which PRNG output bytes were taken -- I had always
6534 assumed that the secret half would be used.) The second
6535 measure makes sure that additional data from 'state' is never
6536 mixed into 'md_local' in small portions; this heuristically
6537 further strengthens the PRNG.
6540 *) Fix crypto/bn/asm/mips3.s.
6543 *) When only the key is given to "enc", the IV is undefined. Print out
6544 an error message in this case.
6547 *) Handle special case when X509_NAME is empty in X509 printing routines.
6550 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6551 positive and less than q.
6554 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6555 used: it isn't thread safe and the add_lock_callback should handle
6557 [Paul Rose <Paul.Rose@bridge.com>]
6559 *) Verify that incoming data obeys the block size in
6560 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6564 [Ulf Möller, Bodo Möller]
6566 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6567 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6568 when fixing the server behaviour for backwards-compatible 'client
6569 hello' messages. (Note that the attack is impractical against
6570 SSL 3.0 and TLS 1.0 anyway because length and version checking
6571 means that the probability of guessing a valid ciphertext is
6572 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6575 Before 0.9.5, the countermeasure (hide the error by generating a
6576 random 'decryption result') did not work properly because
6577 ERR_clear_error() was missing, meaning that SSL_get_error() would
6578 detect the supposedly ignored error.
6580 Both problems are now fixed.
6583 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6584 (previously it was 1024).
6587 *) Fix for compatibility mode trust settings: ignore trust settings
6588 unless some valid trust or reject settings are present.
6591 *) Fix for blowfish EVP: its a variable length cipher.
6594 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6595 parameters in DSA public key structures and return an error in the
6596 DSA routines if parameters are absent.
6599 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6600 in the current directory if neither $RANDFILE nor $HOME was set.
6601 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6602 caused some confusion to Windows users who haven't defined $HOME.
6603 Thus RAND_file_name() is changed again: e_os.h can define a
6604 DEFAULT_HOME, which will be used if $HOME is not set.
6605 For Windows, we use "C:"; on other platforms, we still require
6606 environment variables.
6608 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6609 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6610 having multiple threads call RAND_poll() concurrently.
6613 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6614 combination of a flag and a thread ID variable.
6615 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6616 flag), *other* threads can enter ssleay_add_bytes without obeying
6617 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6618 that they do not hold after the first thread unsets add_do_not_lock).
6621 *) Change bctest again: '-x' expressions are not available in all
6625 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6627 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6628 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6630 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6631 the default extension for executables, if any. Also, make the perl
6632 scripts that use symlink() to test if it really exists and use "cp"
6633 if it doesn't. All this made OpenSSL compilable and installable in
6637 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6638 If SEQUENCE is length is indefinite just set c->slen to the total
6639 amount of data available.
6640 [Steve Henson, reported by shige@FreeBSD.org]
6641 [This change does not apply to 0.9.7.]
6643 *) Change bctest to avoid here-documents inside command substitution
6644 (workaround for FreeBSD /bin/sh bug).
6645 For compatibility with Ultrix, avoid shell functions (introduced
6646 in the bctest version that searches along $PATH).
6649 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6650 with des_encrypt() defined on some operating systems, like Solaris
6654 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6655 On the Importance of Eliminating Errors in Cryptographic
6656 Computations, J. Cryptology 14 (2001) 2, 101-119,
6657 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6660 *) MIPS assembler BIGNUM division bug fix.
6663 *) Disabled incorrect Alpha assembler code.
6666 *) Fix PKCS#7 decode routines so they correctly update the length
6667 after reading an EOC for the EXPLICIT tag.
6669 [This change does not apply to 0.9.7.]
6671 *) Fix bug in PKCS#12 key generation routines. This was triggered
6672 if a 3DES key was generated with a 0 initial byte. Include
6673 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6674 (but broken) behaviour.
6677 *) Enhance bctest to search for a working bc along $PATH and print
6679 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6681 *) Fix memory leaks in err.c: free err_data string if necessary;
6682 don't write to the wrong index in ERR_set_error_data.
6685 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6689 *) Replace rdtsc with _emit statements for VC++ version 5.
6690 [Jeremy Cooper <jeremy@baymoo.org>]
6692 *) Make it possible to reuse SSLv2 sessions.
6695 *) In copy_email() check for >= 0 as a return value for
6696 X509_NAME_get_index_by_NID() since 0 is a valid index.
6697 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6699 *) Avoid coredump with unsupported or invalid public keys by checking if
6700 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6701 PKCS7_verify() fails with non detached data.
6704 *) Don't use getenv in library functions when run as setuid/setgid.
6705 New function OPENSSL_issetugid().
6708 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6709 due to incorrect handling of multi-threading:
6711 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6713 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6715 3. Count how many times MemCheck_off() has been called so that
6716 nested use can be treated correctly. This also avoids
6717 inband-signalling in the previous code (which relied on the
6718 assumption that thread ID 0 is impossible).
6721 *) Add "-rand" option also to s_client and s_server.
6724 *) Fix CPU detection on Irix 6.x.
6725 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6726 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6728 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6731 [This change does not apply to 0.9.7.]
6733 *) Use the cached encoding of an X509_NAME structure rather than
6734 copying it. This is apparently the reason for the libsafe "errors"
6735 but the code is actually correct.
6738 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6739 Bleichenbacher's DSA attack.
6740 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6741 to be set and top=0 forces the highest bit to be set; top=-1 is new
6742 and leaves the highest bit random.
6743 [Ulf Moeller, Bodo Moeller]
6745 *) In the NCONF_...-based implementations for CONF_... queries
6746 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6747 a temporary CONF structure with the data component set to NULL
6748 (which gives segmentation faults in lh_retrieve).
6749 Instead, use NULL for the CONF pointer in CONF_get_string and
6750 CONF_get_number (which may use environment variables) and directly
6751 return NULL from CONF_get_section.
6754 *) Fix potential buffer overrun for EBCDIC.
6757 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6758 keyUsage if basicConstraints absent for a CA.
6761 *) Make SMIME_write_PKCS7() write mail header values with a format that
6762 is more generally accepted (no spaces before the semicolon), since
6763 some programs can't parse those values properly otherwise. Also make
6764 sure BIO's that break lines after each write do not create invalid
6768 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6769 macros previously used would not encode an empty SEQUENCE OF
6770 and break the signature.
6772 [This change does not apply to 0.9.7.]
6774 *) Zero the premaster secret after deriving the master secret in
6778 *) Add some EVP_add_digest_alias registrations (as found in
6779 OpenSSL_add_all_digests()) to SSL_library_init()
6780 aka OpenSSL_add_ssl_algorithms(). This provides improved
6781 compatibility with peers using X.509 certificates
6782 with unconventional AlgorithmIdentifier OIDs.
6785 *) Fix for Irix with NO_ASM.
6786 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6788 *) ./config script fixes.
6789 [Ulf Moeller, Richard Levitte]
6791 *) Fix 'openssl passwd -1'.
6794 *) Change PKCS12_key_gen_asc() so it can cope with non null
6795 terminated strings whose length is passed in the passlen
6796 parameter, for example from PEM callbacks. This was done
6797 by adding an extra length parameter to asc2uni().
6798 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6800 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6801 call failed, free the DSA structure.
6804 *) Fix to uni2asc() to cope with zero length Unicode strings.
6805 These are present in some PKCS#12 files.
6808 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6809 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6810 when writing a 32767 byte record.
6811 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6813 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6814 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6816 (RSA objects have a reference count access to which is protected
6817 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6818 so they are meant to be shared between threads.)
6819 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6820 "Reddie, Steven" <Steven.Reddie@ca.com>]
6822 *) Fix a deadlock in CRYPTO_mem_leaks().
6825 *) Use better test patterns in bntest.
6828 *) rand_win.c fix for Borland C.
6831 *) BN_rshift bugfix for n == 0.
6834 *) Add a 'bctest' script that checks for some known 'bc' bugs
6835 so that 'make test' does not abort just because 'bc' is broken.
6838 *) Store verify_result within SSL_SESSION also for client side to
6839 avoid potential security hole. (Re-used sessions on the client side
6840 always resulted in verify_result==X509_V_OK, not using the original
6841 result of the server certificate verification.)
6844 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6845 SSL3_RT_APPLICATION_DATA, return 0.
6846 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6850 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6851 releases, have been re-implemented by renaming the previous
6852 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6853 and ssl3_read_internal, respectively, and adding 'peek' parameters
6854 to them. The new ssl[23]_{read,peek} functions are calls to
6855 ssl[23]_read_internal with the 'peek' flag set appropriately.
6856 A 'peek' parameter has also been added to ssl3_read_bytes, which
6857 does the actual work for ssl3_read_internal.
6860 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6861 the method-specific "init()" handler. Also clean up ex_data after
6862 calling the method-specific "finish()" handler. Previously, this was
6863 happening the other way round.
6866 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6867 The previous value, 12, was not always sufficient for BN_mod_exp().
6870 *) Make sure that shared libraries get the internal name engine with
6871 the full version number and not just 0. This should mark the
6872 shared libraries as not backward compatible. Of course, this should
6873 be changed again when we can guarantee backward binary compatibility.
6876 *) Fix typo in get_cert_by_subject() in by_dir.c
6877 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6879 *) Rework the system to generate shared libraries:
6881 - Make note of the expected extension for the shared libraries and
6882 if there is a need for symbolic links from for example libcrypto.so.0
6883 to libcrypto.so.0.9.7. There is extended info in Configure for
6886 - Make as few rebuilds of the shared libraries as possible.
6888 - Still avoid linking the OpenSSL programs with the shared libraries.
6890 - When installing, install the shared libraries separately from the
6894 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6896 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6897 and not in SSL_clear because the latter is also used by the
6898 accept/connect functions; previously, the settings made by
6899 SSL_set_read_ahead would be lost during the handshake.
6900 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6902 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6903 Previously, it would create entries for disableed algorithms no
6907 *) Added several new manual pages for SSL_* function.
6910 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6912 *) In ssl23_get_client_hello, generate an error message when faced
6913 with an initial SSL 3.0/TLS record that is too small to contain the
6914 first two bytes of the ClientHello message, i.e. client_version.
6915 (Note that this is a pathologic case that probably has never happened
6916 in real life.) The previous approach was to use the version number
6917 from the record header as a substitute; but our protocol choice
6918 should not depend on that one because it is not authenticated
6919 by the Finished messages.
6922 *) More robust randomness gathering functions for Windows.
6923 [Jeffrey Altman <jaltman@columbia.edu>]
6925 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6926 not set then we don't setup the error code for issuer check errors
6927 to avoid possibly overwriting other errors which the callback does
6928 handle. If an application does set the flag then we assume it knows
6929 what it is doing and can handle the new informational codes
6933 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6934 a general "ANY" type, as such it should be able to decode anything
6935 including tagged types. However it didn't check the class so it would
6936 wrongly interpret tagged types in the same way as their universal
6937 counterpart and unknown types were just rejected. Changed so that the
6938 tagged and unknown types are handled in the same way as a SEQUENCE:
6939 that is the encoding is stored intact. There is also a new type
6940 "V_ASN1_OTHER" which is used when the class is not universal, in this
6941 case we have no idea what the actual type is so we just lump them all
6945 *) On VMS, stdout may very well lead to a file that is written to
6946 in a record-oriented fashion. That means that every write() will
6947 write a separate record, which will be read separately by the
6948 programs trying to read from it. This can be very confusing.
6950 The solution is to put a BIO filter in the way that will buffer
6951 text until a linefeed is reached, and then write everything a
6952 line at a time, so every record written will be an actual line,
6953 not chunks of lines and not (usually doesn't happen, but I've
6954 seen it once) several lines in one record. BIO_f_linebuffer() is
6957 Currently, it's a VMS-only method, because that's where it has
6958 been tested well enough.
6961 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6962 it can return incorrect results.
6963 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6964 but it was in 0.9.6-beta[12].)
6967 *) Disable the check for content being present when verifying detached
6968 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6969 include zero length content when signing messages.
6972 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6973 BIO_ctrl (for BIO pairs).
6976 *) Add DSO method for VMS.
6979 *) Bug fix: Montgomery multiplication could produce results with the
6983 *) Add RPM specification openssl.spec and modify it to build three
6984 packages. The default package contains applications, application
6985 documentation and run-time libraries. The devel package contains
6986 include files, static libraries and function documentation. The
6987 doc package contains the contents of the doc directory. The original
6988 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6991 *) Add a large number of documentation files for many SSL routines.
6992 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6994 *) Add a configuration entry for Sony News 4.
6995 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6997 *) Don't set the two most significant bits to one when generating a
6998 random number < q in the DSA library.
7001 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7002 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7003 the underlying transport is blocking) if a handshake took place.
7004 (The default behaviour is needed by applications such as s_client
7005 and s_server that use select() to determine when to use SSL_read;
7006 but for applications that know in advance when to expect data, it
7007 just makes things more complicated.)
7010 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7014 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7015 work better on such systems.
7016 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7018 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7019 Update PKCS12_parse() so it copies the friendlyName and the
7020 keyid to the certificates aux info.
7023 *) Fix bug in PKCS7_verify() which caused an infinite loop
7024 if there was more than one signature.
7025 [Sven Uszpelkat <su@celocom.de>]
7027 *) Major change in util/mkdef.pl to include extra information
7028 about each symbol, as well as presentig variables as well
7029 as functions. This change means that there's n more need
7030 to rebuild the .num files when some algorithms are excluded.
7033 *) Allow the verify time to be set by an application,
7034 rather than always using the current time.
7037 *) Phase 2 verify code reorganisation. The certificate
7038 verify code now looks up an issuer certificate by a
7039 number of criteria: subject name, authority key id
7040 and key usage. It also verifies self signed certificates
7041 by the same criteria. The main comparison function is
7042 X509_check_issued() which performs these checks.
7044 Lot of changes were necessary in order to support this
7045 without completely rewriting the lookup code.
7047 Authority and subject key identifier are now cached.
7049 The LHASH 'certs' is X509_STORE has now been replaced
7050 by a STACK_OF(X509_OBJECT). This is mainly because an
7051 LHASH can't store or retrieve multiple objects with
7052 the same hash value.
7054 As a result various functions (which were all internal
7055 use only) have changed to handle the new X509_STORE
7056 structure. This will break anything that messed round
7057 with X509_STORE internally.
7059 The functions X509_STORE_add_cert() now checks for an
7060 exact match, rather than just subject name.
7062 The X509_STORE API doesn't directly support the retrieval
7063 of multiple certificates matching a given criteria, however
7064 this can be worked round by performing a lookup first
7065 (which will fill the cache with candidate certificates)
7066 and then examining the cache for matches. This is probably
7067 the best we can do without throwing out X509_LOOKUP
7068 entirely (maybe later...).
7070 The X509_VERIFY_CTX structure has been enhanced considerably.
7072 All certificate lookup operations now go via a get_issuer()
7073 callback. Although this currently uses an X509_STORE it
7074 can be replaced by custom lookups. This is a simple way
7075 to bypass the X509_STORE hackery necessary to make this
7076 work and makes it possible to use more efficient techniques
7077 in future. A very simple version which uses a simple
7078 STACK for its trusted certificate store is also provided
7079 using X509_STORE_CTX_trusted_stack().
7081 The verify_cb() and verify() callbacks now have equivalents
7082 in the X509_STORE_CTX structure.
7084 X509_STORE_CTX also has a 'flags' field which can be used
7085 to customise the verify behaviour.
7088 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7089 excludes S/MIME capabilities.
7092 *) When a certificate request is read in keep a copy of the
7093 original encoding of the signed data and use it when outputing
7094 again. Signatures then use the original encoding rather than
7095 a decoded, encoded version which may cause problems if the
7096 request is improperly encoded.
7099 *) For consistency with other BIO_puts implementations, call
7100 buffer_write(b, ...) directly in buffer_puts instead of calling
7103 In BIO_puts, increment b->num_write as in BIO_write.
7104 [Peter.Sylvester@EdelWeb.fr]
7106 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7107 BN_zero, we may not return a BIGNUM with an array consisting of
7111 *) Avoid calling abort() from within the library when problems are
7112 detected, except if preprocessor symbols have been defined
7113 (such as REF_CHECK, BN_DEBUG etc.).
7116 *) New openssl application 'rsautl'. This utility can be
7117 used for low level RSA operations. DER public key
7118 BIO/fp routines also added.
7121 *) New Configure entry and patches for compiling on QNX 4.
7122 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7124 *) A demo state-machine implementation was sponsored by
7125 Nuron (http://www.nuron.com/) and is now available in
7126 demos/state_machine.
7129 *) New options added to the 'dgst' utility for signature
7130 generation and verification.
7133 *) Unrecognized PKCS#7 content types are now handled via a
7134 catch all ASN1_TYPE structure. This allows unsupported
7135 types to be stored as a "blob" and an application can
7136 encode and decode it manually.
7139 *) Fix various signed/unsigned issues to make a_strex.c
7141 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7143 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7144 length if passed a buffer. ASN1_INTEGER_to_BN failed
7145 if passed a NULL BN and its argument was negative.
7146 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7148 *) Modification to PKCS#7 encoding routines to output definite
7149 length encoding. Since currently the whole structures are in
7150 memory there's not real point in using indefinite length
7151 constructed encoding. However if OpenSSL is compiled with
7152 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7155 *) Added BIO_vprintf() and BIO_vsnprintf().
7158 *) Added more prefixes to parse for in the the strings written
7159 through a logging bio, to cover all the levels that are available
7160 through syslog. The prefixes are now:
7162 PANIC, EMERG, EMR => LOG_EMERG
7163 ALERT, ALR => LOG_ALERT
7164 CRIT, CRI => LOG_CRIT
7165 ERROR, ERR => LOG_ERR
7166 WARNING, WARN, WAR => LOG_WARNING
7167 NOTICE, NOTE, NOT => LOG_NOTICE
7168 INFO, INF => LOG_INFO
7169 DEBUG, DBG => LOG_DEBUG
7171 and as before, if none of those prefixes are present at the
7172 beginning of the string, LOG_ERR is chosen.
7174 On Win32, the LOG_* levels are mapped according to this:
7176 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7177 LOG_WARNING => EVENTLOG_WARNING_TYPE
7178 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7182 *) Made it possible to reconfigure with just the configuration
7183 argument "reconf" or "reconfigure". The command line arguments
7184 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7185 and are retrieved from there when reconfiguring.
7189 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7191 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7194 *) The obj_dat.pl script was messing up the sorting of object
7195 names. The reason was that it compared the quoted version
7196 of strings as a result "OCSP" > "OCSP Signing" because
7197 " > SPACE. Changed script to store unquoted versions of
7198 names and add quotes on output. It was also omitting some
7199 names from the lookup table if they were given a default
7200 value (that is if SN is missing it is given the same
7201 value as LN and vice versa), these are now added on the
7202 grounds that if an object has a name we should be able to
7203 look it up. Finally added warning output when duplicate
7204 short or long names are found.
7207 *) Changes needed for Tandem NSK.
7208 [Scott Uroff <scott@xypro.com>]
7210 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7211 RSA_padding_check_SSLv23(), special padding was never detected
7212 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7213 version rollback attacks was not effective.
7215 In s23_clnt.c, don't use special rollback-attack detection padding
7216 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7217 client; similarly, in s23_srvr.c, don't do the rollback check if
7218 SSL 2.0 is the only protocol enabled in the server.
7221 *) Make it possible to get hexdumps of unprintable data with 'openssl
7222 asn1parse'. By implication, the functions ASN1_parse_dump() and
7223 BIO_dump_indent() are added.
7226 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7227 these print out strings and name structures based on various
7228 flags including RFC2253 support and proper handling of
7229 multibyte characters. Added options to the 'x509' utility
7230 to allow the various flags to be set.
7233 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7234 Also change the functions X509_cmp_current_time() and
7235 X509_gmtime_adj() work with an ASN1_TIME structure,
7236 this will enable certificates using GeneralizedTime in validity
7237 dates to be checked.
7240 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7241 negative public key encodings) on by default,
7242 NO_NEG_PUBKEY_BUG can be set to disable it.
7245 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7246 content octets. An i2c_ASN1_OBJECT is unnecessary because
7247 the encoding can be trivially obtained from the structure.
7250 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7251 not read locks (CRYPTO_r_[un]lock).
7254 *) A first attempt at creating official support for shared
7255 libraries through configuration. I've kept it so the
7256 default is static libraries only, and the OpenSSL programs
7257 are always statically linked for now, but there are
7258 preparations for dynamic linking in place.
7259 This has been tested on Linux and Tru64.
7262 *) Randomness polling function for Win9x, as described in:
7263 Peter Gutmann, Software Generation of Practically Strong
7267 *) Fix so PRNG is seeded in req if using an already existing
7271 *) New options to smime application. -inform and -outform
7272 allow alternative formats for the S/MIME message including
7273 PEM and DER. The -content option allows the content to be
7274 specified separately. This should allow things like Netscape
7275 form signing output easier to verify.
7278 *) Fix the ASN1 encoding of tags using the 'long form'.
7281 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7282 STRING types. These convert content octets to and from the
7283 underlying type. The actual tag and length octets are
7284 already assumed to have been read in and checked. These
7285 are needed because all other string types have virtually
7286 identical handling apart from the tag. By having versions
7287 of the ASN1 functions that just operate on content octets
7288 IMPLICIT tagging can be handled properly. It also allows
7289 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7290 and ASN1_INTEGER are identical apart from the tag.
7293 *) Change the handling of OID objects as follows:
7295 - New object identifiers are inserted in objects.txt, following
7296 the syntax given in objects.README.
7297 - objects.pl is used to process obj_mac.num and create a new
7299 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7302 This is currently kind of a hack, and the perl code in objects.pl
7303 isn't very elegant, but it works as I intended. The simplest way
7304 to check that it worked correctly is to look in obj_dat.h and
7305 check the array nid_objs and make sure the objects haven't moved
7306 around (this is important!). Additions are OK, as well as
7307 consistent name changes.
7310 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7313 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7314 The given file adds to whatever has already been seeded into the
7315 random pool through the RANDFILE configuration file option or
7316 environment variable, or the default random state file.
7319 *) mkstack.pl now sorts each macro group into lexical order.
7320 Previously the output order depended on the order the files
7321 appeared in the directory, resulting in needless rewriting
7325 *) Patches to make OpenSSL compile under Win32 again. Mostly
7326 work arounds for the VC++ problem that it treats func() as
7327 func(void). Also stripped out the parts of mkdef.pl that
7328 added extra typesafe functions: these no longer exist.
7331 *) Reorganisation of the stack code. The macros are now all
7332 collected in safestack.h . Each macro is defined in terms of
7333 a "stack macro" of the form SKM_<name>(type, a, b). The
7334 DEBUG_SAFESTACK is now handled in terms of function casts,
7335 this has the advantage of retaining type safety without the
7336 use of additional functions. If DEBUG_SAFESTACK is not defined
7337 then the non typesafe macros are used instead. Also modified the
7338 mkstack.pl script to handle the new form. Needs testing to see
7339 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7340 the default if no major problems. Similar behaviour for ASN1_SET_OF
7341 and PKCS12_STACK_OF.
7344 *) When some versions of IIS use the 'NET' form of private key the
7345 key derivation algorithm is different. Normally MD5(password) is
7346 used as a 128 bit RC4 key. In the modified case
7347 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7348 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7349 as the old Netscape_RSA functions except they have an additional
7350 'sgckey' parameter which uses the modified algorithm. Also added
7351 an -sgckey command line option to the rsa utility. Thanks to
7352 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7353 algorithm to openssl-dev.
7356 *) The evp_local.h macros were using 'c.##kname' which resulted in
7357 invalid expansion on some systems (SCO 5.0.5 for example).
7358 Corrected to 'c.kname'.
7359 [Phillip Porch <root@theporch.com>]
7361 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7362 a STACK of email addresses from a certificate or request, these look
7363 in the subject name and the subject alternative name extensions and
7364 omit any duplicate addresses.
7367 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7368 This makes DSA verification about 2 % faster.
7371 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7372 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7373 plus overhead for 1024 bit moduli).
7374 This makes exponentiations about 0.5 % faster for 1024 bit
7375 exponents (as measured by "openssl speed rsa2048").
7378 *) Rename memory handling macros to avoid conflicts with other
7380 Malloc => OPENSSL_malloc
7381 Malloc_locked => OPENSSL_malloc_locked
7382 Realloc => OPENSSL_realloc
7383 Free => OPENSSL_free
7386 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7387 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7390 *) CygWin32 support.
7391 [John Jarvie <jjarvie@newsguy.com>]
7393 *) The type-safe stack code has been rejigged. It is now only compiled
7394 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7395 by default all type-specific stack functions are "#define"d back to
7396 standard stack functions. This results in more streamlined output
7397 but retains the type-safety checking possibilities of the original
7401 *) The STACK code has been cleaned up, and certain type declarations
7402 that didn't make a lot of sense have been brought in line. This has
7403 also involved a cleanup of sorts in safestack.h to more correctly
7404 map type-safe stack functions onto their plain stack counterparts.
7405 This work has also resulted in a variety of "const"ifications of
7406 lots of the code, especially "_cmp" operations which should normally
7407 be prototyped with "const" parameters anyway.
7410 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7411 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7412 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7413 where all of 'md' is used each time the PRNG is used, but 'state'
7414 is used only indexed by a cyclic counter. As entropy may not be
7415 well distributed from the beginning, 'md' is important as a
7416 chaining variable. However, the output function chains only half
7417 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7418 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7419 in all of 'state' being rewritten, with the new values depending
7420 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7423 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7424 the handshake is continued after ssl_verify_cert_chain();
7425 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7426 can lead to 'unexplainable' connection aborts later.
7427 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7429 *) Major EVP API cipher revision.
7430 Add hooks for extra EVP features. This allows various cipher
7431 parameters to be set in the EVP interface. Support added for variable
7432 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7433 setting of RC2 and RC5 parameters.
7435 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7438 Remove lots of duplicated code from the EVP library. For example *every*
7439 cipher init() function handles the 'iv' in the same way according to the
7440 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7441 for CFB and OFB modes they zero ctx->num.
7443 New functionality allows removal of S/MIME code RC2 hack.
7445 Most of the routines have the same form and so can be declared in terms
7448 By shifting this to the top level EVP_CipherInit() it can be removed from
7449 all individual ciphers. If the cipher wants to handle IVs or keys
7450 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7453 Change lots of functions like EVP_EncryptUpdate() to now return a
7454 value: although software versions of the algorithms cannot fail
7455 any installed hardware versions can.
7458 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7459 this option is set, tolerate broken clients that send the negotiated
7460 protocol version number instead of the requested protocol version
7464 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7465 i.e. non-zero for export ciphersuites, zero otherwise.
7466 Previous versions had this flag inverted, inconsistent with
7467 rsa_tmp_cb (..._TMP_RSA_CB).
7468 [Bodo Moeller; problem reported by Amit Chopra]
7470 *) Add missing DSA library text string. Work around for some IIS
7471 key files with invalid SEQUENCE encoding.
7474 *) Add a document (doc/standards.txt) that list all kinds of standards
7475 and so on that are implemented in OpenSSL.
7478 *) Enhance c_rehash script. Old version would mishandle certificates
7479 with the same subject name hash and wouldn't handle CRLs at all.
7480 Added -fingerprint option to crl utility, to support new c_rehash
7484 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7487 *) Fix for SSL server purpose checking. Server checking was
7488 rejecting certificates which had extended key usage present
7489 but no ssl client purpose.
7490 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7492 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7493 is a little unclear about how a blank password is handled.
7494 Since the password in encoded as a BMPString with terminating
7495 double NULL a zero length password would end up as just the
7496 double NULL. However no password at all is different and is
7497 handled differently in the PKCS#12 key generation code. NS
7498 treats a blank password as zero length. MSIE treats it as no
7499 password on export: but it will try both on import. We now do
7500 the same: PKCS12_parse() tries zero length and no password if
7501 the password is set to "" or NULL (NULL is now a valid password:
7502 it wasn't before) as does the pkcs12 application.
7505 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7506 perror when PEM_read_bio_X509_REQ fails, the error message must
7507 be obtained from the error queue.
7510 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7511 it in ERR_remove_state if appropriate, and change ERR_get_state
7512 accordingly to avoid race conditions (this is necessary because
7513 thread_hash is no longer constant once set).
7516 *) Bugfix for linux-elf makefile.one.
7519 *) RSA_get_default_method() will now cause a default
7520 RSA_METHOD to be chosen if one doesn't exist already.
7521 Previously this was only set during a call to RSA_new()
7522 or RSA_new_method(NULL) meaning it was possible for
7523 RSA_get_default_method() to return NULL.
7526 *) Added native name translation to the existing DSO code
7527 that will convert (if the flag to do so is set) filenames
7528 that are sufficiently small and have no path information
7529 into a canonical native form. Eg. "blah" converted to
7530 "libblah.so" or "blah.dll" etc.
7533 *) New function ERR_error_string_n(e, buf, len) which is like
7534 ERR_error_string(e, buf), but writes at most 'len' bytes
7535 including the 0 terminator. For ERR_error_string_n, 'buf'
7537 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7539 *) CONF library reworked to become more general. A new CONF
7540 configuration file reader "class" is implemented as well as a
7541 new functions (NCONF_*, for "New CONF") to handle it. The now
7542 old CONF_* functions are still there, but are reimplemented to
7543 work in terms of the new functions. Also, a set of functions
7544 to handle the internal storage of the configuration data is
7545 provided to make it easier to write new configuration file
7546 reader "classes" (I can definitely see something reading a
7547 configuration file in XML format, for example), called _CONF_*,
7548 or "the configuration storage API"...
7550 The new configuration file reading functions are:
7552 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7553 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7555 NCONF_default, NCONF_WIN32
7557 NCONF_dump_fp, NCONF_dump_bio
7559 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7560 NCONF_new creates a new CONF object. This works in the same way
7561 as other interfaces in OpenSSL, like the BIO interface.
7562 NCONF_dump_* dump the internal storage of the configuration file,
7563 which is useful for debugging. All other functions take the same
7564 arguments as the old CONF_* functions wth the exception of the
7565 first that must be a `CONF *' instead of a `LHASH *'.
7567 To make it easer to use the new classes with the old CONF_* functions,
7568 the function CONF_set_default_method is provided.
7571 *) Add '-tls1' option to 'openssl ciphers', which was already
7572 mentioned in the documentation but had not been implemented.
7573 (This option is not yet really useful because even the additional
7574 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7577 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7578 OpenSSL-based applications) load shared libraries and bind to
7579 them in a portable way.
7580 [Geoff Thorpe, with contributions from Richard Levitte]
7582 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7584 *) Make sure _lrotl and _lrotr are only used with MSVC.
7586 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7587 (the default implementation of RAND_status).
7589 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7590 to '-clrext' (= clear extensions), as intended and documented.
7591 [Bodo Moeller; inconsistency pointed out by Michael Attili
7594 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7595 was larger than the MD block size.
7596 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7598 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7599 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7600 using the passed key: if the passed key was a private key the result
7601 of X509_print(), for example, would be to print out all the private key
7605 *) des_quad_cksum() byte order bug fix.
7606 [Ulf Möller, using the problem description in krb4-0.9.7, where
7607 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7609 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7611 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7613 *) For easily testing in shell scripts whether some command
7614 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7615 returns with exit code 0 iff no command of the given name is available.
7616 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7617 the output goes to stdout and nothing is printed to stderr.
7618 Additional arguments are always ignored.
7620 Since for each cipher there is a command of the same name,
7621 the 'no-cipher' compilation switches can be tested this way.
7623 ('openssl no-XXX' is not able to detect pseudo-commands such
7624 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7627 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7630 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7631 is set; it will be thrown away anyway because each handshake creates
7633 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7634 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7635 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7636 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7639 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7640 'Q' and 'R' lose their special meanings (quit/renegotiate).
7641 This is part of what -quiet does; unlike -quiet, -ign_eof
7642 does not suppress any output.
7645 *) Add compatibility options to the purpose and trust code. The
7646 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7647 accepts a certificate or CA, this was the previous behaviour,
7648 with all the associated security issues.
7650 X509_TRUST_COMPAT is the old trust behaviour: only and
7651 automatically trust self signed roots in certificate store. A
7652 new trust setting X509_TRUST_DEFAULT is used to specify that
7653 a purpose has no associated trust setting and it should instead
7654 use the value in the default purpose.
7657 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7658 and fix a memory leak.
7661 *) In util/mkerr.pl (which implements 'make errors'), preserve
7662 reason strings from the previous version of the .c file, as
7663 the default to have only downcase letters (and digits) in
7664 automatically generated reasons codes is not always appropriate.
7667 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7668 using strerror. Previously, ERR_reason_error_string() returned
7669 library names as reason strings for SYSerr; but SYSerr is a special
7670 case where small numbers are errno values, not library numbers.
7673 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7674 converts DSA parameters into DH parameters. (When creating parameters,
7675 DSA_generate_parameters is used.)
7678 *) Include 'length' (recommended exponent length) in C code generated
7679 by 'openssl dhparam -C'.
7682 *) The second argument to set_label in perlasm was already being used
7683 so couldn't be used as a "file scope" flag. Moved to third argument
7687 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7688 instead of RAND_bytes for encryption IVs and salts.
7691 *) Include RAND_status() into RAND_METHOD instead of implementing
7692 it only for md_rand.c Otherwise replacing the PRNG by calling
7693 RAND_set_rand_method would be impossible.
7696 *) Don't let DSA_generate_key() enter an infinite loop if the random
7697 number generation fails.
7700 *) New 'rand' application for creating pseudo-random output.
7703 *) Added configuration support for Linux/IA64
7704 [Rolf Haberrecker <rolf@suse.de>]
7706 *) Assembler module support for Mingw32.
7709 *) Shared library support for HPUX (in shlib/).
7710 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7712 *) Shared library support for Solaris gcc.
7713 [Lutz Behnke <behnke@trustcenter.de>]
7715 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7717 *) PKCS7_encrypt() was adding text MIME headers twice because they
7718 were added manually and by SMIME_crlf_copy().
7721 *) In bntest.c don't call BN_rand with zero bits argument.
7722 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7724 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7725 case was implemented. This caused BN_div_recp() to fail occasionally.
7728 *) Add an optional second argument to the set_label() in the perl
7729 assembly language builder. If this argument exists and is set
7730 to 1 it signals that the assembler should use a symbol whose
7731 scope is the entire file, not just the current function. This
7732 is needed with MASM which uses the format label:: for this scope.
7733 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7735 *) Change the ASN1 types so they are typedefs by default. Before
7736 almost all types were #define'd to ASN1_STRING which was causing
7737 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7741 *) Change names of new functions to the new get1/get0 naming
7742 convention: After 'get1', the caller owns a reference count
7743 and has to call ..._free; 'get0' returns a pointer to some
7744 data structure without incrementing reference counters.
7745 (Some of the existing 'get' functions increment a reference
7746 counter, some don't.)
7747 Similarly, 'set1' and 'add1' functions increase reference
7748 counters or duplicate objects.
7751 *) Allow for the possibility of temp RSA key generation failure:
7752 the code used to assume it always worked and crashed on failure.
7755 *) Fix potential buffer overrun problem in BIO_printf().
7756 [Ulf Möller, using public domain code by Patrick Powell; problem
7757 pointed out by David Sacerdote <das33@cornell.edu>]
7759 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7760 RAND_egd() and RAND_status(). In the command line application,
7761 the EGD socket can be specified like a seed file using RANDFILE
7765 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7766 Some CAs (e.g. Verisign) distribute certificates in this form.
7769 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7770 list to exclude them. This means that no special compilation option
7771 is needed to use anonymous DH: it just needs to be included in the
7775 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7776 EVP_MD_type. The old functionality is available in a new macro called
7777 EVP_MD_md(). Change code that uses it and update docs.
7780 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7781 where the 'void *' argument is replaced by a function pointer argument.
7782 Previously 'void *' was abused to point to functions, which works on
7783 many platforms, but is not correct. As these functions are usually
7784 called by macros defined in OpenSSL header files, most source code
7785 should work without changes.
7788 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7789 sections with information on -D... compiler switches used for
7790 compiling the library so that applications can see them. To enable
7791 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7792 must be defined. E.g.,
7793 #define OPENSSL_ALGORITHM_DEFINES
7794 #include <openssl/opensslconf.h>
7795 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7796 [Richard Levitte, Ulf and Bodo Möller]
7798 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7802 *) Change the 'other' type in certificate aux info to a STACK_OF
7803 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7804 the required ASN1 format: arbitrary types determined by an OID.
7807 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7808 argument to 'req'. This is not because the function is newer or
7809 better than others it just uses the work 'NEW' in the certificate
7810 request header lines. Some software needs this.
7813 *) Reorganise password command line arguments: now passwords can be
7814 obtained from various sources. Delete the PEM_cb function and make
7815 it the default behaviour: i.e. if the callback is NULL and the
7816 usrdata argument is not NULL interpret it as a null terminated pass
7817 phrase. If usrdata and the callback are NULL then the pass phrase
7818 is prompted for as usual.
7821 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7822 the support is automatically enabled. The resulting binaries will
7823 autodetect the card and use it if present.
7824 [Ben Laurie and Compaq Inc.]
7826 *) Work around for Netscape hang bug. This sends certificate request
7827 and server done in one record. Since this is perfectly legal in the
7828 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7829 the bugs/SSLv3 entry for more info.
7832 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7835 *) Add -rand argument to smime and pkcs12 applications and read/write
7839 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7842 *) Add command line password options to the remaining applications.
7845 *) Bug fix for BN_div_recp() for numerators with an even number of
7849 *) More tests in bntest.c, and changed test_bn output.
7852 *) ./config recognizes MacOS X now.
7855 *) Bug fix for BN_div() when the first words of num and divsor are
7856 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7859 *) Add support for various broken PKCS#8 formats, and command line
7860 options to produce them.
7863 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7864 get temporary BIGNUMs from a BN_CTX.
7867 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7871 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7872 include a #define from the old name to the new. The original intent
7873 was that statically linked binaries could for example just call
7874 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7875 link with digests. This never worked becayse SSLeay_add_all_digests()
7876 and SSLeay_add_all_ciphers() were in the same source file so calling
7877 one would link with the other. They are now in separate source files.
7880 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7883 *) Use a less unusual form of the Miller-Rabin primality test (it used
7884 a binary algorithm for exponentiation integrated into the Miller-Rabin
7885 loop, our standard modexp algorithms are faster).
7888 *) Support for the EBCDIC character set completed.
7889 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7891 *) Source code cleanups: use const where appropriate, eliminate casts,
7892 use void * instead of char * in lhash.
7895 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7896 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7897 this the server could overwrite ephemeral keys that the client
7901 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7902 using 50 iterations of the Rabin-Miller test.
7904 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7905 iterations of the Rabin-Miller test as required by the appendix
7906 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7907 As BN_is_prime_fasttest includes trial division, DSA parameter
7908 generation becomes much faster.
7910 This implies a change for the callback functions in DSA_is_prime
7911 and DSA_generate_parameters: The callback function is called once
7912 for each positive witness in the Rabin-Miller test, not just
7913 occasionally in the inner loop; and the parameters to the
7914 callback function now provide an iteration count for the outer
7915 loop rather than for the current invocation of the inner loop.
7916 DSA_generate_parameters additionally can call the callback
7917 function with an 'iteration count' of -1, meaning that a
7918 candidate has passed the trial division test (when q is generated
7919 from an application-provided seed, trial division is skipped).
7922 *) New function BN_is_prime_fasttest that optionally does trial
7923 division before starting the Rabin-Miller test and has
7924 an additional BN_CTX * argument (whereas BN_is_prime always
7925 has to allocate at least one BN_CTX).
7926 'callback(1, -1, cb_arg)' is called when a number has passed the
7927 trial division stage.
7930 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7934 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7937 *) New function BN_pseudo_rand().
7940 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7941 bignum version of BN_from_montgomery() with the working code from
7942 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7946 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7947 made it impossible to use the same SSL_SESSION data structure in
7948 SSL2 clients in multiple threads.
7951 *) The return value of RAND_load_file() no longer counts bytes obtained
7952 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7953 to seed the PRNG (previously an explicit byte count was required).
7954 [Ulf Möller, Bodo Möller]
7956 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7957 used (char *) instead of (void *) and had casts all over the place.
7960 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7963 *) Retain source code compatibility for BN_prime_checks macro:
7964 BN_is_prime(..., BN_prime_checks, ...) now uses
7965 BN_prime_checks_for_size to determine the appropriate number of
7966 Rabin-Miller iterations.
7969 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7970 DH_CHECK_P_NOT_SAFE_PRIME.
7971 (Check if this is true? OpenPGP calls them "strong".)
7974 *) Merge the functionality of "dh" and "gendh" programs into a new program
7975 "dhparam". The old programs are retained for now but will handle DH keys
7976 (instead of parameters) in future.
7979 *) Make the ciphers, s_server and s_client programs check the return values
7980 when a new cipher list is set.
7983 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7984 ciphers. Before when the 56bit ciphers were enabled the sorting was
7987 The syntax for the cipher sorting has been extended to support sorting by
7988 cipher-strength (using the strength_bits hard coded in the tables).
7989 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7991 Fix a bug in the cipher-command parser: when supplying a cipher command
7992 string with an "undefined" symbol (neither command nor alphanumeric
7993 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7994 an error is flagged.
7996 Due to the strength-sorting extension, the code of the
7997 ssl_create_cipher_list() function was completely rearranged. I hope that
7998 the readability was also increased :-)
7999 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8001 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8002 for the first serial number and places 2 in the serial number file. This
8003 avoids problems when the root CA is created with serial number zero and
8004 the first user certificate has the same issuer name and serial number
8008 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8009 the new code. Add documentation for this stuff.
8012 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8013 X509_*() to X509at_*() on the grounds that they don't handle X509
8014 structures and behave in an analagous way to the X509v3 functions:
8015 they shouldn't be called directly but wrapper functions should be used
8018 So we also now have some wrapper functions that call the X509at functions
8019 when passed certificate requests. (TO DO: similar things can be done with
8020 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8021 things. Some of these need some d2i or i2d and print functionality
8022 because they handle more complex structures.)
8025 *) Add missing #ifndefs that caused missing symbols when building libssl
8026 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8027 NO_RSA in ssl/s2*.c.
8028 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8030 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8031 has a return value which indicates the quality of the random data
8032 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8033 error queue. New function RAND_pseudo_bytes() generates output that is
8034 guaranteed to be unique but not unpredictable. RAND_add is like
8035 RAND_seed, but takes an extra argument for an entropy estimate
8036 (RAND_seed always assumes full entropy).
8039 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8040 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8041 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8042 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8043 false-positive rate of at most 2^-80 for random input.
8046 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8049 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8050 in the 0.9.5 release), this returns the chain
8051 from an X509_CTX structure with a dup of the stack and all
8052 the X509 reference counts upped: so the stack will exist
8053 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8056 Also make SSL_SESSION_print() print out the verify return
8060 *) Add manpage for the pkcs12 command. Also change the default
8061 behaviour so MAC iteration counts are used unless the new
8062 -nomaciter option is used. This improves file security and
8063 only older versions of MSIE (4.0 for example) need it.
8066 *) Honor the no-xxx Configure options when creating .DEF files.
8069 *) Add PKCS#10 attributes to field table: challengePassword,
8070 unstructuredName and unstructuredAddress. These are taken from
8071 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8072 international characters are used.
8074 More changes to X509_ATTRIBUTE code: allow the setting of types
8075 based on strings. Remove the 'loc' parameter when adding
8076 attributes because these will be a SET OF encoding which is sorted
8080 *) Initial changes to the 'req' utility to allow request generation
8081 automation. This will allow an application to just generate a template
8082 file containing all the field values and have req construct the
8085 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8086 used all over the place including certificate requests and PKCS#7
8087 structures. They are currently handled manually where necessary with
8088 some primitive wrappers for PKCS#7. The new functions behave in a
8089 manner analogous to the X509 extension functions: they allow
8090 attributes to be looked up by NID and added.
8092 Later something similar to the X509V3 code would be desirable to
8093 automatically handle the encoding, decoding and printing of the
8094 more complex types. The string types like challengePassword can
8095 be handled by the string table functions.
8097 Also modified the multi byte string table handling. Now there is
8098 a 'global mask' which masks out certain types. The table itself
8099 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8100 is useful when for example there is only one permissible type
8101 (as in countryName) and using the mask might result in no valid
8105 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8106 SSL_get_peer_finished to allow applications to obtain the latest
8107 Finished messages sent to the peer or expected from the peer,
8108 respectively. (SSL_get_peer_finished is usually the Finished message
8109 actually received from the peer, otherwise the protocol will be aborted.)
8111 As the Finished message are message digests of the complete handshake
8112 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8113 be used for external authentication procedures when the authentication
8114 provided by SSL/TLS is not desired or is not enough.
8117 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8118 the host supports BWX extension and if Compaq C is present on the
8119 $PATH. Just exploiting of the BWX extension results in 20-30%
8120 performance kick for some algorithms, e.g. DES and RC4 to mention
8121 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8125 *) Add support for MS "fast SGC". This is arguably a violation of the
8126 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8127 weak crypto and after checking the certificate is SGC a second one
8128 with strong crypto. MS SGC stops the first handshake after receiving
8129 the server certificate message and sends a second client hello. Since
8130 a server will typically do all the time consuming operations before
8131 expecting any further messages from the client (server key exchange
8132 is the most expensive) there is little difference between the two.
8134 To get OpenSSL to support MS SGC we have to permit a second client
8135 hello message after we have sent server done. In addition we have to
8136 reset the MAC if we do get this second client hello.
8139 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8140 if a DER encoded private key is RSA or DSA traditional format. Changed
8141 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8142 format DER encoded private key. Newer code should use PKCS#8 format which
8143 has the key type encoded in the ASN1 structure. Added DER private key
8144 support to pkcs8 application.
8147 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8148 ciphersuites has been selected (as required by the SSL 3/TLS 1
8149 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8150 is set, we interpret this as a request to violate the specification
8151 (the worst that can happen is a handshake failure, and 'correct'
8152 behaviour would result in a handshake failure anyway).
8155 *) In SSL_CTX_add_session, take into account that there might be multiple
8156 SSL_SESSION structures with the same session ID (e.g. when two threads
8157 concurrently obtain them from an external cache).
8158 The internal cache can handle only one SSL_SESSION with a given ID,
8159 so if there's a conflict, we now throw out the old one to achieve
8163 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8164 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8165 some routines that use cipher OIDs: some ciphers do not have OIDs
8166 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8170 *) Simplify the trust setting structure and code. Now we just have
8171 two sequences of OIDs for trusted and rejected settings. These will
8172 typically have values the same as the extended key usage extension
8173 and any application specific purposes.
8175 The trust checking code now has a default behaviour: it will just
8176 check for an object with the same NID as the passed id. Functions can
8177 be provided to override either the default behaviour or the behaviour
8178 for a given id. SSL client, server and email already have functions
8179 in place for compatibility: they check the NID and also return "trusted"
8180 if the certificate is self signed.
8183 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8184 traditional format into an EVP_PKEY structure.
8187 *) Add a password callback function PEM_cb() which either prompts for
8188 a password if usr_data is NULL or otherwise assumes it is a null
8189 terminated password. Allow passwords to be passed on command line
8190 environment or config files in a few more utilities.
8193 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8194 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8195 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8196 Update documentation.
8199 *) Support for ASN1 "NULL" type. This could be handled before by using
8200 ASN1_TYPE but there wasn't any function that would try to read a NULL
8201 and produce an error if it couldn't. For compatibility we also have
8202 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8203 don't allocate anything because they don't need to.
8206 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8208 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8210 *) Rebuild of the memory allocation routines used by OpenSSL code and
8211 possibly others as well. The purpose is to make an interface that
8212 provide hooks so anyone can build a separate set of allocation and
8213 deallocation routines to be used by OpenSSL, for example memory
8214 pool implementations, or something else, which was previously hard
8215 since Malloc(), Realloc() and Free() were defined as macros having
8216 the values malloc, realloc and free, respectively (except for Win32
8217 compilations). The same is provided for memory debugging code.
8218 OpenSSL already comes with functionality to find memory leaks, but
8219 this gives people a chance to debug other memory problems.
8221 With these changes, a new set of functions and macros have appeared:
8223 CRYPTO_set_mem_debug_functions() [F]
8224 CRYPTO_get_mem_debug_functions() [F]
8225 CRYPTO_dbg_set_options() [F]
8226 CRYPTO_dbg_get_options() [F]
8227 CRYPTO_malloc_debug_init() [M]
8229 The memory debug functions are NULL by default, unless the library
8230 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8231 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8232 gives the standard debugging functions that come with OpenSSL) or
8233 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8234 provided by the library user) must be used. When the standard
8235 debugging functions are used, CRYPTO_dbg_set_options can be used to
8236 request additional information:
8237 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8238 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8240 Also, things like CRYPTO_set_mem_functions will always give the
8241 expected result (the new set of functions is used for allocation
8242 and deallocation) at all times, regardless of platform and compiler
8245 To finish it up, some functions that were never use in any other
8246 way than through macros have a new API and new semantic:
8249 CRYPTO_dbg_realloc()
8252 All macros of value have retained their old syntax.
8253 [Richard Levitte and Bodo Moeller]
8255 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8256 ordering of SMIMECapabilities wasn't in "strength order" and there
8257 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8261 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8262 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8263 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8265 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8266 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8267 functionality to handle multipart/signed properly) and a utility
8268 called 'smime' to call all this stuff. This is based on code I
8269 originally wrote for Celo who have kindly allowed it to be
8270 included in OpenSSL.
8273 *) Add variants des_set_key_checked and des_set_key_unchecked of
8274 des_set_key (aka des_key_sched). Global variable des_check_key
8275 decides which of these is called by des_set_key; this way
8276 des_check_key behaves as it always did, but applications and
8277 the library itself, which was buggy for des_check_key == 1,
8278 have a cleaner way to pick the version they need.
8281 *) New function PKCS12_newpass() which changes the password of a
8285 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8286 dynamic mix. In both cases the ids can be used as an index into the
8287 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8288 functions so they accept a list of the field values and the
8289 application doesn't need to directly manipulate the X509_TRUST
8293 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8297 *) Modify the way the V3 extension code looks up extensions. This now
8298 works in a similar way to the object code: we have some "standard"
8299 extensions in a static table which is searched with OBJ_bsearch()
8300 and the application can add dynamic ones if needed. The file
8301 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8302 updated whenever a new extension is added to the core code and kept
8303 in ext_nid order. There is a simple program 'tabtest.c' which checks
8304 this. New extensions are not added too often so this file can readily
8305 be maintained manually.
8307 There are two big advantages in doing things this way. The extensions
8308 can be looked up immediately and no longer need to be "added" using
8309 X509V3_add_standard_extensions(): this function now does nothing.
8310 [Side note: I get *lots* of email saying the extension code doesn't
8311 work because people forget to call this function]
8312 Also no dynamic allocation is done unless new extensions are added:
8313 so if we don't add custom extensions there is no need to call
8314 X509V3_EXT_cleanup().
8317 *) Modify enc utility's salting as follows: make salting the default. Add a
8318 magic header, so unsalted files fail gracefully instead of just decrypting
8319 to garbage. This is because not salting is a big security hole, so people
8320 should be discouraged from doing it.
8323 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8324 digest to be passed on the command line but it only used this
8325 parameter when signing a certificate. Modified so all relevant
8326 operations are affected by the digest parameter including the
8327 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8328 DSA key was used because it didn't fix the digest.
8331 *) Initial certificate chain verify code. Currently tests the untrusted
8332 certificates for consistency with the verify purpose (which is set
8333 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8335 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8336 this is because it will reject chains with invalid extensions whereas
8337 every previous version of OpenSSL and SSLeay made no checks at all.
8339 Trust code: checks the root CA for the relevant trust settings. Trust
8340 settings have an initial value consistent with the verify purpose: e.g.
8341 if the verify purpose is for SSL client use it expects the CA to be
8342 trusted for SSL client use. However the default value can be changed to
8343 permit custom trust settings: one example of this would be to only trust
8344 certificates from a specific "secure" set of CAs.
8346 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8347 which should be used for version portability: especially since the
8348 verify structure is likely to change more often now.
8350 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8351 to set them. If not set then assume SSL clients will verify SSL servers
8354 Two new options to the verify program: -untrusted allows a set of
8355 untrusted certificates to be passed in and -purpose which sets the
8356 intended purpose of the certificate. If a purpose is set then the
8357 new chain verify code is used to check extension consistency.
8360 *) Support for the authority information access extension.
8363 *) Modify RSA and DSA PEM read routines to transparently handle
8364 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8365 public keys in a format compatible with certificate
8366 SubjectPublicKeyInfo structures. Unfortunately there were already
8367 functions called *_PublicKey_* which used various odd formats so
8368 these are retained for compatibility: however the DSA variants were
8369 never in a public release so they have been deleted. Changed dsa/rsa
8370 utilities to handle the new format: note no releases ever handled public
8371 keys so we should be OK.
8373 The primary motivation for this change is to avoid the same fiasco
8374 that dogs private keys: there are several incompatible private key
8375 formats some of which are standard and some OpenSSL specific and
8376 require various evil hacks to allow partial transparent handling and
8377 even then it doesn't work with DER formats. Given the option anything
8378 other than PKCS#8 should be dumped: but the other formats have to
8379 stay in the name of compatibility.
8381 With public keys and the benefit of hindsight one standard format
8382 is used which works with EVP_PKEY, RSA or DSA structures: though
8383 it clearly returns an error if you try to read the wrong kind of key.
8385 Added a -pubkey option to the 'x509' utility to output the public key.
8386 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8387 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8388 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8389 that do the same as the EVP_PKEY_assign_*() except they up the
8390 reference count of the added key (they don't "swallow" the
8394 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8395 CRLs would fail if the file contained no certificates or no CRLs:
8396 added a new function to read in both types and return the number
8397 read: this means that if none are read it will be an error. The
8398 DER versions of the certificate and CRL reader would always fail
8399 because it isn't possible to mix certificates and CRLs in DER format
8400 without choking one or the other routine. Changed this to just read
8401 a certificate: this is the best we can do. Also modified the code
8402 in apps/verify.c to take notice of return codes: it was previously
8403 attempting to read in certificates from NULL pointers and ignoring
8404 any errors: this is one reason why the cert and CRL reader seemed
8405 to work. It doesn't check return codes from the default certificate
8406 routines: these may well fail if the certificates aren't installed.
8409 *) Code to support otherName option in GeneralName.
8412 *) First update to verify code. Change the verify utility
8413 so it warns if it is passed a self signed certificate:
8414 for consistency with the normal behaviour. X509_verify
8415 has been modified to it will now verify a self signed
8416 certificate if *exactly* the same certificate appears
8417 in the store: it was previously impossible to trust a
8418 single self signed certificate. This means that:
8419 openssl verify ss.pem
8420 now gives a warning about a self signed certificate but
8421 openssl verify -CAfile ss.pem ss.pem
8425 *) For servers, store verify_result in SSL_SESSION data structure
8426 (and add it to external session representation).
8427 This is needed when client certificate verifications fails,
8428 but an application-provided verification callback (set by
8429 SSL_CTX_set_cert_verify_callback) allows accepting the session
8430 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8431 but returns 1): When the session is reused, we have to set
8432 ssl->verify_result to the appropriate error code to avoid
8434 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8436 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8437 case in PKCS7_dataInit() where the signed PKCS7 structure
8438 didn't contain any existing data because it was being created.
8439 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8441 *) Add a salt to the key derivation routines in enc.c. This
8442 forms the first 8 bytes of the encrypted file. Also add a
8443 -S option to allow a salt to be input on the command line.
8446 *) New function X509_cmp(). Oddly enough there wasn't a function
8447 to compare two certificates. We do this by working out the SHA1
8448 hash and comparing that. X509_cmp() will be needed by the trust
8452 *) SSL_get1_session() is like SSL_get_session(), but increments
8453 the reference count in the SSL_SESSION returned.
8454 [Geoff Thorpe <geoff@eu.c2.net>]
8456 *) Fix for 'req': it was adding a null to request attributes.
8457 Also change the X509_LOOKUP and X509_INFO code to handle
8458 certificate auxiliary information.
8461 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8465 *) Add the possibility to add extra information to the memory leak
8466 detecting output, to form tracebacks, showing from where each
8467 allocation was originated: CRYPTO_push_info("constant string") adds
8468 the string plus current file name and line number to a per-thread
8469 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8470 is like calling CYRPTO_pop_info() until the stack is empty.
8471 Also updated memory leak detection code to be multi-thread-safe.
8474 *) Add options -text and -noout to pkcs7 utility and delete the
8475 encryption options which never did anything. Update docs.
8478 *) Add options to some of the utilities to allow the pass phrase
8479 to be included on either the command line (not recommended on
8480 OSes like Unix) or read from the environment. Update the
8481 manpages and fix a few bugs.
8484 *) Add a few manpages for some of the openssl commands.
8487 *) Fix the -revoke option in ca. It was freeing up memory twice,
8488 leaking and not finding already revoked certificates.
8491 *) Extensive changes to support certificate auxiliary information.
8492 This involves the use of X509_CERT_AUX structure and X509_AUX
8493 functions. An X509_AUX function such as PEM_read_X509_AUX()
8494 can still read in a certificate file in the usual way but it
8495 will also read in any additional "auxiliary information". By
8496 doing things this way a fair degree of compatibility can be
8497 retained: existing certificates can have this information added
8498 using the new 'x509' options.
8500 Current auxiliary information includes an "alias" and some trust
8501 settings. The trust settings will ultimately be used in enhanced
8502 certificate chain verification routines: currently a certificate
8503 can only be trusted if it is self signed and then it is trusted
8507 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8508 The problem was that one of the replacement routines had not been working
8509 since SSLeay releases. For now the offending routine has been replaced
8510 with non-optimised assembler. Even so, this now gives around 95%
8511 performance improvement for 1024 bit RSA signs.
8514 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8515 handling. Most clients have the effective key size in bits equal to
8516 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8517 A few however don't do this and instead use the size of the decrypted key
8518 to determine the RC2 key length and the AlgorithmIdentifier to determine
8519 the effective key length. In this case the effective key length can still
8520 be 40 bits but the key length can be 168 bits for example. This is fixed
8521 by manually forcing an RC2 key into the EVP_PKEY structure because the
8522 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8523 the key length and effective key length are equal.
8526 *) Add a bunch of functions that should simplify the creation of
8527 X509_NAME structures. Now you should be able to do:
8528 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8529 and have it automatically work out the correct field type and fill in
8530 the structures. The more adventurous can try:
8531 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8532 and it will (hopefully) work out the correct multibyte encoding.
8535 *) Change the 'req' utility to use the new field handling and multibyte
8536 copy routines. Before the DN field creation was handled in an ad hoc
8537 way in req, ca, and x509 which was rather broken and didn't support
8538 BMPStrings or UTF8Strings. Since some software doesn't implement
8539 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8540 using the dirstring_type option. See the new comment in the default
8541 openssl.cnf for more info.
8544 *) Make crypto/rand/md_rand.c more robust:
8545 - Assure unique random numbers after fork().
8546 - Make sure that concurrent threads access the global counter and
8547 md serializably so that we never lose entropy in them
8548 or use exactly the same state in multiple threads.
8549 Access to the large state is not always serializable because
8550 the additional locking could be a performance killer, and
8551 md should be large enough anyway.
8554 *) New file apps/app_rand.c with commonly needed functionality
8555 for handling the random seed file.
8557 Use the random seed file in some applications that previously did not:
8559 dsaparam -genkey (which also ignored its '-rand' option),
8562 x509 (when signing).
8563 Except on systems with /dev/urandom, it is crucial to have a random
8564 seed file at least for key creation, DSA signing, and for DH exchanges;
8565 for RSA signatures we could do without one.
8567 gendh and gendsa (unlike genrsa) used to read only the first byte
8568 of each file listed in the '-rand' option. The function as previously
8569 found in genrsa is now in app_rand.c and is used by all programs
8570 that support '-rand'.
8573 *) In RAND_write_file, use mode 0600 for creating files;
8574 don't just chmod when it may be too late.
8577 *) Report an error from X509_STORE_load_locations
8578 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8581 *) New function ASN1_mbstring_copy() this copies a string in either
8582 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8583 into an ASN1_STRING type. A mask of permissible types is passed
8584 and it chooses the "minimal" type to use or an error if not type
8588 *) Add function equivalents to the various macros in asn1.h. The old
8589 macros are retained with an M_ prefix. Code inside the library can
8590 use the M_ macros. External code (including the openssl utility)
8591 should *NOT* in order to be "shared library friendly".
8594 *) Add various functions that can check a certificate's extensions
8595 to see if it usable for various purposes such as SSL client,
8596 server or S/MIME and CAs of these types. This is currently
8597 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8598 verification. Also added a -purpose flag to x509 utility to
8599 print out all the purposes.
8602 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8606 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8607 for, obtain and decode and extension and obtain its critical flag.
8608 This allows all the necessary extension code to be handled in a
8609 single function call.
8612 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8613 platforms. See crypto/rc4/rc4_enc.c for further details.
8616 *) New -noout option to asn1parse. This causes no output to be produced
8617 its main use is when combined with -strparse and -out to extract data
8618 from a file (which may not be in ASN.1 format).
8621 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8622 when producing the local key id.
8623 [Richard Levitte <levitte@stacken.kth.se>]
8625 *) New option -dhparam in s_server. This allows a DH parameter file to be
8626 stated explicitly. If it is not stated then it tries the first server
8627 certificate file. The previous behaviour hard coded the filename
8631 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8632 a public key to be input or output. For example:
8633 openssl rsa -in key.pem -pubout -out pubkey.pem
8634 Also added necessary DSA public key functions to handle this.
8637 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8638 in the message. This was handled by allowing
8639 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8640 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8642 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8643 to the end of the strings whereas this didn't. This would cause problems
8644 if strings read with d2i_ASN1_bytes() were later modified.
8645 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8647 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8648 data and it contains EOF it will end up returning an error. This is
8649 caused by input 46 bytes long. The cause is due to the way base64
8650 BIOs find the start of base64 encoded data. They do this by trying a
8651 trial decode on each line until they find one that works. When they
8652 do a flag is set and it starts again knowing it can pass all the
8653 data directly through the decoder. Unfortunately it doesn't reset
8654 the context it uses. This means that if EOF is reached an attempt
8655 is made to pass two EOFs through the context and this causes the
8656 resulting error. This can also cause other problems as well. As is
8657 usual with these problems it takes *ages* to find and the fix is
8658 trivial: move one line.
8659 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8661 *) Ugly workaround to get s_client and s_server working under Windows. The
8662 old code wouldn't work because it needed to select() on sockets and the
8663 tty (for keypresses and to see if data could be written). Win32 only
8664 supports select() on sockets so we select() with a 1s timeout on the
8665 sockets and then see if any characters are waiting to be read, if none
8666 are present then we retry, we also assume we can always write data to
8667 the tty. This isn't nice because the code then blocks until we've
8668 received a complete line of data and it is effectively polling the
8669 keyboard at 1s intervals: however it's quite a bit better than not
8670 working at all :-) A dedicated Windows application might handle this
8671 with an event loop for example.
8674 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8675 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8676 will be called when RSA_sign() and RSA_verify() are used. This is useful
8677 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8678 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8679 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8680 This necessitated the support of an extra signature type NID_md5_sha1
8681 for SSL signatures and modifications to the SSL library to use it instead
8682 of calling RSA_public_decrypt() and RSA_private_encrypt().
8685 *) Add new -verify -CAfile and -CApath options to the crl program, these
8686 will lookup a CRL issuers certificate and verify the signature in a
8687 similar way to the verify program. Tidy up the crl program so it
8688 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8689 less strict. It will now permit CRL extensions even if it is not
8690 a V2 CRL: this will allow it to tolerate some broken CRLs.
8693 *) Initialize all non-automatic variables each time one of the openssl
8694 sub-programs is started (this is necessary as they may be started
8695 multiple times from the "OpenSSL>" prompt).
8696 [Lennart Bang, Bodo Moeller]
8698 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8699 removing all other RSA functionality (this is what NO_RSA does). This
8700 is so (for example) those in the US can disable those operations covered
8701 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8705 *) Non-copying interface to BIO pairs.
8706 (still largely untested)
8709 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8710 ASCII string. This was handled independently in various places before.
8713 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8714 UTF8 strings a character at a time.
8717 *) Use client_version from client hello to select the protocol
8718 (s23_srvr.c) and for RSA client key exchange verification
8719 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8722 *) Add various utility functions to handle SPKACs, these were previously
8723 handled by poking round in the structure internals. Added new function
8724 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8725 print, verify and generate SPKACs. Based on an original idea from
8726 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8729 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8732 *) Allow the config file extension section to be overwritten on the
8733 command line. Based on an original idea from Massimiliano Pala
8734 <madwolf@comune.modena.it>. The new option is called -extensions
8735 and can be applied to ca, req and x509. Also -reqexts to override
8736 the request extensions in req and -crlexts to override the crl extensions
8740 *) Add new feature to the SPKAC handling in ca. Now you can include
8741 the same field multiple times by preceding it by "XXXX." for example:
8744 this is the same syntax as used in the req config file.
8747 *) Allow certificate extensions to be added to certificate requests. These
8748 are specified in a 'req_extensions' option of the req section of the
8749 config file. They can be printed out with the -text option to req but
8750 are otherwise ignored at present.
8753 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8754 data read consists of only the final block it would not decrypted because
8755 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8756 A misplaced 'break' also meant the decrypted final block might not be
8757 copied until the next read.
8760 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8761 a few extra parameters to the DH structure: these will be useful if
8762 for example we want the value of 'q' or implement X9.42 DH.
8765 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8766 provides hooks that allow the default DSA functions or functions on a
8767 "per key" basis to be replaced. This allows hardware acceleration and
8768 hardware key storage to be handled without major modification to the
8769 library. Also added low level modexp hooks and CRYPTO_EX structure and
8770 associated functions.
8773 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8774 as "read only": it can't be written to and the buffer it points to will
8775 not be freed. Reading from a read only BIO is much more efficient than
8776 a normal memory BIO. This was added because there are several times when
8777 an area of memory needs to be read from a BIO. The previous method was
8778 to create a memory BIO and write the data to it, this results in two
8779 copies of the data and an O(n^2) reading algorithm. There is a new
8780 function BIO_new_mem_buf() which creates a read only memory BIO from
8781 an area of memory. Also modified the PKCS#7 routines to use read only
8785 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8786 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8787 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8788 but a retry condition occured while trying to read the rest.
8791 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8792 NID_pkcs7_encrypted by default: this was wrong since this should almost
8793 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8794 the encrypted data type: this is a more sensible place to put it and it
8795 allows the PKCS#12 code to be tidied up that duplicated this
8799 *) Changed obj_dat.pl script so it takes its input and output files on
8800 the command line. This should avoid shell escape redirection problems
8804 *) Initial support for certificate extension requests, these are included
8805 in things like Xenroll certificate requests. Included functions to allow
8806 extensions to be obtained and added.
8809 *) -crlf option to s_client and s_server for sending newlines as
8810 CRLF (as required by many protocols).
8813 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8815 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8816 [Ralf S. Engelschall]
8818 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8819 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8821 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8825 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8826 DH parameters/keys (q is lost during that conversion, but the resulting
8827 DH parameters contain its length).
8829 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8830 much faster than DH_generate_parameters (which creates parameters
8831 where p = 2*q + 1), and also the smaller q makes DH computations
8832 much more efficient (160-bit exponentiation instead of 1024-bit
8833 exponentiation); so this provides a convenient way to support DHE
8834 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8835 utter importance to use
8836 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8838 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8839 when such DH parameters are used, because otherwise small subgroup
8840 attacks may become possible!
8843 *) Avoid memory leak in i2d_DHparams.
8846 *) Allow the -k option to be used more than once in the enc program:
8847 this allows the same encrypted message to be read by multiple recipients.
8850 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8851 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8852 it will always use the numerical form of the OID, even if it has a short
8856 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8857 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8858 otherwise bn_mod_exp was called. In the case of hardware keys for example
8859 no private key components need be present and it might store extra data
8860 in the RSA structure, which cannot be accessed from bn_mod_exp.
8861 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8862 private key operations.
8865 *) Added support for SPARC Linux.
8868 *) pem_password_cb function type incompatibly changed from
8869 typedef int pem_password_cb(char *buf, int size, int rwflag);
8871 ....(char *buf, int size, int rwflag, void *userdata);
8872 so that applications can pass data to their callbacks:
8873 The PEM[_ASN1]_{read,write}... functions and macros now take an
8874 additional void * argument, which is just handed through whenever
8875 the password callback is called.
8876 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8878 New function SSL_CTX_set_default_passwd_cb_userdata.
8880 Compatibility note: As many C implementations push function arguments
8881 onto the stack in reverse order, the new library version is likely to
8882 interoperate with programs that have been compiled with the old
8883 pem_password_cb definition (PEM_whatever takes some data that
8884 happens to be on the stack as its last argument, and the callback
8885 just ignores this garbage); but there is no guarantee whatsoever that
8888 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8889 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8890 problems not only on Windows, but also on some Unix platforms.
8891 To avoid problematic command lines, these definitions are now in an
8892 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8893 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8896 *) MIPS III/IV assembler module is reimplemented.
8899 *) More DES library cleanups: remove references to srand/rand and
8900 delete an unused file.
8903 *) Add support for the the free Netwide assembler (NASM) under Win32,
8904 since not many people have MASM (ml) and it can be hard to obtain.
8905 This is currently experimental but it seems to work OK and pass all
8906 the tests. Check out INSTALL.W32 for info.
8909 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8910 without temporary keys kept an extra copy of the server key,
8911 and connections with temporary keys did not free everything in case
8915 *) New function RSA_check_key and new openssl rsa option -check
8916 for verifying the consistency of RSA keys.
8917 [Ulf Moeller, Bodo Moeller]
8919 *) Various changes to make Win32 compile work:
8920 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8921 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8922 comparison" warnings.
8923 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8926 *) Add a debugging option to PKCS#5 v2 key generation function: when
8927 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8928 derived keys are printed to stderr.
8931 *) Copy the flags in ASN1_STRING_dup().
8932 [Roman E. Pavlov <pre@mo.msk.ru>]
8934 *) The x509 application mishandled signing requests containing DSA
8935 keys when the signing key was also DSA and the parameters didn't match.
8937 It was supposed to omit the parameters when they matched the signing key:
8938 the verifying software was then supposed to automatically use the CA's
8939 parameters if they were absent from the end user certificate.
8941 Omitting parameters is no longer recommended. The test was also
8942 the wrong way round! This was probably due to unusual behaviour in
8943 EVP_cmp_parameters() which returns 1 if the parameters match.
8944 This meant that parameters were omitted when they *didn't* match and
8945 the certificate was useless. Certificates signed with 'ca' didn't have
8947 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8949 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8950 The interface is as follows:
8951 Applications can use
8952 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8953 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8954 "off" is now the default.
8955 The library internally uses
8956 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8957 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8958 to disable memory-checking temporarily.
8960 Some inconsistent states that previously were possible (and were
8961 even the default) are now avoided.
8963 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8964 with each memory chunk allocated; this is occasionally more helpful
8965 than just having a counter.
8967 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8969 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8973 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8974 which largely parallels "options", but is for changing API behaviour,
8975 whereas "options" are about protocol behaviour.
8976 Initial "mode" flags are:
8978 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8979 a single record has been written.
8980 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8981 retries use the same buffer location.
8982 (But all of the contents must be
8986 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8989 *) Fix problems with no-hmac etc.
8990 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8992 *) New functions RSA_get_default_method(), RSA_set_method() and
8993 RSA_get_method(). These allows replacement of RSA_METHODs without having
8994 to mess around with the internals of an RSA structure.
8997 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8998 Also really enable memory leak checks in openssl.c and in some
9000 [Chad C. Mulligan, Bodo Moeller]
9002 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9003 up the length of negative integers. This has now been simplified to just
9004 store the length when it is first determined and use it later, rather
9005 than trying to keep track of where data is copied and updating it to
9007 [Steve Henson, reported by Brien Wheeler
9008 <bwheeler@authentica-security.com>]
9010 *) Add a new function PKCS7_signatureVerify. This allows the verification
9011 of a PKCS#7 signature but with the signing certificate passed to the
9012 function itself. This contrasts with PKCS7_dataVerify which assumes the
9013 certificate is present in the PKCS#7 structure. This isn't always the
9014 case: certificates can be omitted from a PKCS#7 structure and be
9015 distributed by "out of band" means (such as a certificate database).
9018 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9019 function prototypes in pem.h, also change util/mkdef.pl to add the
9020 necessary function names.
9023 *) mk1mf.pl (used by Windows builds) did not properly read the
9024 options set by Configure in the top level Makefile, and Configure
9025 was not even able to write more than one option correctly.
9026 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9029 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9030 file to be loaded from a BIO or FILE pointer. The BIO version will
9031 for example allow memory BIOs to contain config info.
9034 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9035 Whoever hopes to achieve shared-library compatibility across versions
9036 must use this, not the compile-time macro.
9037 (Exercise 0.9.4: Which is the minimum library version required by
9039 Note: All this applies only to multi-threaded programs, others don't
9043 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9044 through a BIO pair triggered the default case, i.e.
9045 SSLerr(...,SSL_R_UNKNOWN_STATE).
9048 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9049 can use the SSL library even if none of the specific BIOs is
9053 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9054 for the encoded length.
9055 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9057 *) Add initial documentation of the X509V3 functions.
9060 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9061 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9062 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9063 secure PKCS#8 private key format with a high iteration count.
9066 *) Fix determination of Perl interpreter: A perl or perl5
9067 _directory_ in $PATH was also accepted as the interpreter.
9068 [Ralf S. Engelschall]
9070 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9071 wrong with it but it was very old and did things like calling
9072 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9076 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9077 to use the new extension code.
9080 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9081 with macros. This should make it easier to change their form, add extra
9082 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9086 *) Add to configuration table a new entry that can specify an alternative
9087 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9088 according to Mark Crispin <MRC@Panda.COM>.
9092 *) DES CBC did not update the IV. Weird.
9095 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9096 Changing the behaviour of the former might break existing programs --
9097 where IV updating is needed, des_ncbc_encrypt can be used.
9100 *) When bntest is run from "make test" it drives bc to check its
9101 calculations, as well as internally checking them. If an internal check
9102 fails, it needs to cause bc to give a non-zero result or make test carries
9103 on without noticing the failure. Fixed.
9106 *) DES library cleanups.
9109 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9110 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9111 ciphers. NOTE: although the key derivation function has been verified
9112 against some published test vectors it has not been extensively tested
9113 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9117 *) Instead of "mkdir -p", which is not fully portable, use new
9118 Perl script "util/mkdir-p.pl".
9121 *) Rewrite the way password based encryption (PBE) is handled. It used to
9122 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9123 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9124 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9125 the 'parameter' field of the AlgorithmIdentifier is passed to the
9126 underlying key generation function so it must do its own ASN1 parsing.
9127 This has also changed the EVP_PBE_CipherInit() function which now has a
9128 'parameter' argument instead of literal salt and iteration count values
9129 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9132 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9133 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9134 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9135 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9136 value was just used as a "magic string" and not used directly its
9137 value doesn't matter.
9140 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9144 *) "linux-sparc64" configuration (ultrapenguin).
9145 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9146 "linux-sparc" configuration.
9147 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9149 *) config now generates no-xxx options for missing ciphers.
9152 *) Support the EBCDIC character set (work in progress).
9153 File ebcdic.c not yet included because it has a different license.
9154 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9156 *) Support BS2000/OSD-POSIX.
9157 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9159 *) Make callbacks for key generation use void * instead of char *.
9162 *) Make S/MIME samples compile (not yet tested).
9165 *) Additional typesafe stacks.
9168 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9172 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9174 *) New configuration variant "sco5-gcc".
9176 *) Updated some demos.
9177 [Sean O Riordain, Wade Scholine]
9179 *) Add missing BIO_free at exit of pkcs12 application.
9182 *) Fix memory leak in conf.c.
9185 *) Updates for Win32 to assembler version of MD5.
9188 *) Set #! path to perl in apps/der_chop to where we found it
9189 instead of using a fixed path.
9192 *) SHA library changes for irix64-mips4-cc.
9195 *) Improvements for VMS support.
9199 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9201 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9202 This also avoids the problems with SC4.2 and unpatched SC5.
9203 [Andy Polyakov <appro@fy.chalmers.se>]
9205 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9206 These are required because of the typesafe stack would otherwise break
9207 existing code. If old code used a structure member which used to be STACK
9208 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9209 sk_num or sk_value it would produce an error because the num, data members
9210 are not present in STACK_OF. Now it just produces a warning. sk_set
9211 replaces the old method of assigning a value to sk_value
9212 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9213 that does this will no longer work (and should use sk_set instead) but
9214 this could be regarded as a "questionable" behaviour anyway.
9217 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9218 correctly handle encrypted S/MIME data.
9221 *) Change type of various DES function arguments from des_cblock
9222 (which means, in function argument declarations, pointer to char)
9223 to des_cblock * (meaning pointer to array with 8 char elements),
9224 which allows the compiler to do more typechecking; it was like
9225 that back in SSLeay, but with lots of ugly casts.
9227 Introduce new type const_des_cblock.
9230 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9231 problems: find RecipientInfo structure that matches recipient certificate
9232 and initialise the ASN1 structures properly based on passed cipher.
9235 *) Belatedly make the BN tests actually check the results.
9238 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9239 to and from BNs: it was completely broken. New compilation option
9240 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9241 key elements as negative integers.
9244 *) Reorganize and speed up MD5.
9245 [Andy Polyakov <appro@fy.chalmers.se>]
9248 [Richard Levitte <richard@levitte.org>]
9250 *) New option -out to asn1parse to allow the parsed structure to be
9251 output to a file. This is most useful when combined with the -strparse
9252 option to examine the output of things like OCTET STRINGS.
9255 *) Make SSL library a little more fool-proof by not requiring any longer
9256 that SSL_set_{accept,connect}_state be called before
9257 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9258 in many applications because usually everything *appeared* to work as
9259 intended anyway -- now it really works as intended).
9262 *) Move openssl.cnf out of lib/.
9265 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9266 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9267 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9268 [Ralf S. Engelschall]
9270 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9271 handle PKCS#7 enveloped data properly.
9272 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9274 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9275 copying pointers. The cert_st handling is changed by this in
9276 various ways (and thus what used to be known as ctx->default_cert
9277 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9278 any longer when s->cert does not give us what we need).
9279 ssl_cert_instantiate becomes obsolete by this change.
9280 As soon as we've got the new code right (possibly it already is?),
9281 we have solved a couple of bugs of the earlier code where s->cert
9282 was used as if it could not have been shared with other SSL structures.
9284 Note that using the SSL API in certain dirty ways now will result
9285 in different behaviour than observed with earlier library versions:
9286 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9287 does not influence s as it used to.
9289 In order to clean up things more thoroughly, inside SSL_SESSION
9290 we don't use CERT any longer, but a new structure SESS_CERT
9291 that holds per-session data (if available); currently, this is
9292 the peer's certificate chain and, for clients, the server's certificate
9293 and temporary key. CERT holds only those values that can have
9294 meaningful defaults in an SSL_CTX.
9297 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9298 from the internal representation. Various PKCS#7 fixes: remove some
9299 evil casts and set the enc_dig_alg field properly based on the signing
9303 *) Allow PKCS#12 password to be set from the command line or the
9304 environment. Let 'ca' get its config file name from the environment
9305 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9309 *) Allow certificate policies extension to use an IA5STRING for the
9310 organization field. This is contrary to the PKIX definition but
9311 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9315 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9316 without disallowing inline assembler and the like for non-pedantic builds.
9319 *) Support Borland C++ builder.
9320 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9325 *) SHA-1 cleanups and performance enhancements.
9326 [Andy Polyakov <appro@fy.chalmers.se>]
9328 *) Sparc v8plus assembler for the bignum library.
9329 [Andy Polyakov <appro@fy.chalmers.se>]
9331 *) Accept any -xxx and +xxx compiler options in Configure.
9334 *) Update HPUX configuration.
9337 *) Add missing sk_<type>_unshift() function to safestack.h
9338 [Ralf S. Engelschall]
9340 *) New function SSL_CTX_use_certificate_chain_file that sets the
9341 "extra_cert"s in addition to the certificate. (This makes sense
9342 only for "PEM" format files, as chains as a whole are not
9346 *) Support verify_depth from the SSL API.
9347 x509_vfy.c had what can be considered an off-by-one-error:
9348 Its depth (which was not part of the external interface)
9349 was actually counting the number of certificates in a chain;
9350 now it really counts the depth.
9353 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9354 instead of X509err, which often resulted in confusing error
9355 messages since the error codes are not globally unique
9356 (e.g. an alleged error in ssl3_accept when a certificate
9357 didn't match the private key).
9359 *) New function SSL_CTX_set_session_id_context that allows to set a default
9360 value (so that you don't need SSL_set_session_id_context for each
9361 connection using the SSL_CTX).
9364 *) OAEP decoding bug fix.
9367 *) Support INSTALL_PREFIX for package builders, as proposed by
9371 *) New Configure options "threads" and "no-threads". For systems
9372 where the proper compiler options are known (currently Solaris
9373 and Linux), "threads" is the default.
9376 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9379 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9380 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9381 such as /usr/local/bin.
9384 *) "make linux-shared" to build shared libraries.
9385 [Niels Poppe <niels@netbox.org>]
9387 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9390 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9391 extension adding in x509 utility.
9394 *) Remove NOPROTO sections and error code comments.
9397 *) Partial rewrite of the DEF file generator to now parse the ANSI
9401 *) New Configure options --prefix=DIR and --openssldir=DIR.
9404 *) Complete rewrite of the error code script(s). It is all now handled
9405 by one script at the top level which handles error code gathering,
9406 header rewriting and C source file generation. It should be much better
9407 than the old method: it now uses a modified version of Ulf's parser to
9408 read the ANSI prototypes in all header files (thus the old K&R definitions
9409 aren't needed for error creation any more) and do a better job of
9410 translating function codes into names. The old 'ASN1 error code imbedded
9411 in a comment' is no longer necessary and it doesn't use .err files which
9412 have now been deleted. Also the error code call doesn't have to appear all
9413 on one line (which resulted in some large lines...).
9416 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9419 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9420 0 (which usually indicates a closed connection), but continue reading.
9423 *) Fix some race conditions.
9426 *) Add support for CRL distribution points extension. Add Certificate
9427 Policies and CRL distribution points documentation.
9430 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9433 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9434 8 of keying material. Merlin has also confirmed interop with this fix
9435 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9436 [Merlin Hughes <merlin@baltimore.ie>]
9438 *) Fix lots of warnings.
9439 [Richard Levitte <levitte@stacken.kth.se>]
9441 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9442 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9443 [Richard Levitte <levitte@stacken.kth.se>]
9445 *) Fix problems with sizeof(long) == 8.
9446 [Andy Polyakov <appro@fy.chalmers.se>]
9448 *) Change functions to ANSI C.
9451 *) Fix typos in error codes.
9452 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9454 *) Remove defunct assembler files from Configure.
9457 *) SPARC v8 assembler BIGNUM implementation.
9458 [Andy Polyakov <appro@fy.chalmers.se>]
9460 *) Support for Certificate Policies extension: both print and set.
9461 Various additions to support the r2i method this uses.
9464 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9465 return a const string when you are expecting an allocated buffer.
9468 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9469 types DirectoryString and DisplayText.
9472 *) Add code to allow r2i extensions to access the configuration database,
9473 add an LHASH database driver and add several ctx helper functions.
9476 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9477 fail when they extended the size of a BIGNUM.
9480 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9481 support typesafe stack.
9484 *) Fix typo in SSL_[gs]et_options().
9485 [Nils Frostberg <nils@medcom.se>]
9487 *) Delete various functions and files that belonged to the (now obsolete)
9488 old X509V3 handling code.
9491 *) New Configure option "rsaref".
9494 *) Don't auto-generate pem.h.
9497 *) Introduce type-safe ASN.1 SETs.
9500 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9501 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9503 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9504 that links with OpenSSL (well at least cause lots of warnings), but fear
9505 not: the conversion is trivial, and it eliminates loads of evil casts. A
9506 few STACKed things have been converted already. Feel free to convert more.
9507 In the fullness of time, I'll do away with the STACK type altogether.
9510 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9511 specified in <certfile> by updating the entry in the index.txt file.
9512 This way one no longer has to edit the index.txt file manually for
9513 revoking a certificate. The -revoke option does the gory details now.
9514 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9516 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9517 `-text' option at all and this way the `-noout -text' combination was
9518 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9519 [Ralf S. Engelschall]
9521 *) Make sure a corresponding plain text error message exists for the
9522 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9523 verify callback function determined that a certificate was revoked.
9524 [Ralf S. Engelschall]
9526 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9527 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9528 all available cipers including rc5, which was forgotten until now.
9529 In order to let the testing shell script know which algorithms
9530 are available, a new (up to now undocumented) command
9531 "openssl list-cipher-commands" is used.
9534 *) Bugfix: s_client occasionally would sleep in select() when
9535 it should have checked SSL_pending() first.
9538 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9539 the raw DSA values prior to ASN.1 encoding.
9542 *) Tweaks to Configure
9543 [Niels Poppe <niels@netbox.org>]
9545 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9549 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9552 *) New config option to avoid instructions that are illegal on the 80386.
9553 The default code is faster, but requires at least a 486.
9556 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9557 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9558 same as SSL2_VERSION anyway.
9561 *) New "-showcerts" option for s_client.
9564 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9565 application. Various cleanups and fixes.
9568 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9569 modify error routines to work internally. Add error codes and PBE init
9570 to library startup routines.
9573 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9574 packing functions to asn1 and evp. Changed function names and error
9575 codes along the way.
9578 *) PKCS12 integration: and so it begins... First of several patches to
9579 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9580 objects to objects.h
9583 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9584 and display support for Thawte strong extranet extension.
9587 *) Add LinuxPPC support.
9588 [Jeff Dubrule <igor@pobox.org>]
9590 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9591 bn_div_words in alpha.s.
9592 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9594 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9595 OAEP isn't supported when OpenSSL is built with RSAref.
9596 [Ulf Moeller <ulf@fitug.de>]
9598 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9599 so they no longer are missing under -DNOPROTO.
9600 [Soren S. Jorvang <soren@t.dk>]
9603 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9605 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9606 doesn't work when the session is reused. Coming soon!
9609 *) Fix a security hole, that allows sessions to be reused in the wrong
9610 context thus bypassing client cert protection! All software that uses
9611 client certs and session caches in multiple contexts NEEDS PATCHING to
9612 allow session reuse! A fuller solution is in the works.
9613 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9615 *) Some more source tree cleanups (removed obsolete files
9616 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9617 permission on "config" script to be executable) and a fix for the INSTALL
9619 [Ulf Moeller <ulf@fitug.de>]
9621 *) Remove some legacy and erroneous uses of malloc, free instead of
9623 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9625 *) Make rsa_oaep_test return non-zero on error.
9626 [Ulf Moeller <ulf@fitug.de>]
9628 *) Add support for native Solaris shared libraries. Configure
9629 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9630 if someone would make that last step automatic.
9631 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9633 *) ctx_size was not built with the right compiler during "make links". Fixed.
9636 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9637 except NULL ciphers". This means the default cipher list will no longer
9638 enable NULL ciphers. They need to be specifically enabled e.g. with
9639 the string "DEFAULT:eNULL".
9642 *) Fix to RSA private encryption routines: if p < q then it would
9643 occasionally produce an invalid result. This will only happen with
9644 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9647 *) Be less restrictive and allow also `perl util/perlpath.pl
9648 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9649 because this way one can also use an interpreter named `perl5' (which is
9650 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9651 installed as `perl').
9652 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9654 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9655 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9657 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9658 advapi32.lib to Win32 build and change the pem test comparision
9659 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9660 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9661 and crypto/des/ede_cbcm_enc.c.
9664 *) DES quad checksum was broken on big-endian architectures. Fixed.
9667 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9668 Win32 test batch file so it (might) work again. The Win32 test batch file
9669 is horrible: I feel ill....
9672 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9673 in e_os.h. Audit of header files to check ANSI and non ANSI
9674 sections: 10 functions were absent from non ANSI section and not exported
9675 from Windows DLLs. Fixed up libeay.num for new functions.
9678 *) Make `openssl version' output lines consistent.
9679 [Ralf S. Engelschall]
9681 *) Fix Win32 symbol export lists for BIO functions: Added
9682 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9683 to ms/libeay{16,32}.def.
9684 [Ralf S. Engelschall]
9686 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9687 fine under Unix and passes some trivial tests I've now added. But the
9688 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9689 added to make sure no one expects that this stuff really works in the
9690 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9691 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9693 [Ralf S. Engelschall]
9695 *) Fix the generation of two part addresses in perl.
9696 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9698 *) Add config entry for Linux on MIPS.
9699 [John Tobey <jtobey@channel1.com>]
9701 *) Make links whenever Configure is run, unless we are on Windoze.
9704 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9705 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9709 *) Add a useful kludge to allow package maintainers to specify compiler and
9710 other platforms details on the command line without having to patch the
9711 Configure script everytime: One now can use ``perl Configure
9712 <id>:<details>'', i.e. platform ids are allowed to have details appended
9713 to them (seperated by colons). This is treated as there would be a static
9714 pre-configured entry in Configure's %table under key <id> with value
9715 <details> and ``perl Configure <id>'' is called. So, when you want to
9716 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9717 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9718 now, which overrides the FreeBSD-elf entry on-the-fly.
9719 [Ralf S. Engelschall]
9721 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9724 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9725 on the `perl Configure ...' command line. This way one can compile
9726 OpenSSL libraries with Position Independent Code (PIC) which is needed
9727 for linking it into DSOs.
9728 [Ralf S. Engelschall]
9730 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9734 *) Cleaned up the LICENSE document: The official contact for any license
9735 questions now is the OpenSSL core team under openssl-core@openssl.org.
9736 And add a paragraph about the dual-license situation to make sure people
9737 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9738 to the OpenSSL toolkit.
9739 [Ralf S. Engelschall]
9741 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9742 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9743 Additonally cleaned up the `make links' target: Remove unnecessary
9744 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9745 to speed processing and no longer clutter the display with confusing
9746 stuff. Instead only the actually done links are displayed.
9747 [Ralf S. Engelschall]
9749 *) Permit null encryption ciphersuites, used for authentication only. It used
9750 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9751 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9755 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9756 signed attributes when verifying signatures (this would break them),
9757 the detached data encoding was wrong and public keys obtained using
9758 X509_get_pubkey() weren't freed.
9761 *) Add text documentation for the BUFFER functions. Also added a work around
9762 to a Win95 console bug. This was triggered by the password read stuff: the
9763 last character typed gets carried over to the next fread(). If you were
9764 generating a new cert request using 'req' for example then the last
9765 character of the passphrase would be CR which would then enter the first
9769 *) Added the new `Includes OpenSSL Cryptography Software' button as
9770 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9771 button and can be used by applications based on OpenSSL to show the
9772 relationship to the OpenSSL project.
9773 [Ralf S. Engelschall]
9775 *) Remove confusing variables in function signatures in files
9776 ssl/ssl_lib.c and ssl/ssl.h.
9777 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9779 *) Don't install bss_file.c under PREFIX/include/
9780 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9782 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9783 functions that return function pointers and has support for NT specific
9784 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9785 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9786 unsigned to signed types: this was killing the Win32 compile.
9789 *) Add new certificate file to stack functions,
9790 SSL_add_dir_cert_subjects_to_stack() and
9791 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9792 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9793 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9794 This means that Apache-SSL and similar packages don't have to mess around
9795 to add as many CAs as they want to the preferred list.
9798 *) Experiment with doxygen documentation. Currently only partially applied to
9800 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9801 openssl.doxy as the configuration file.
9804 *) Get rid of remaining C++-style comments which strict C compilers hate.
9805 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9807 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9808 compiled in by default: it has problems with large keys.
9811 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9812 DH private keys and/or callback functions which directly correspond to
9813 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9814 is needed for applications which have to configure certificates on a
9815 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9817 For the RSA certificate situation is makes no difference, but
9818 for the DSA certificate situation this fixes the "no shared cipher"
9819 problem where the OpenSSL cipher selection procedure failed because the
9820 temporary keys were not overtaken from the context and the API provided
9821 no way to reconfigure them.
9822 The new functions now let applications reconfigure the stuff and they
9823 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9824 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9825 non-public-API function ssl_cert_instantiate() is used as a helper
9826 function and also to reduce code redundancy inside ssl_rsa.c.
9827 [Ralf S. Engelschall]
9829 *) Move s_server -dcert and -dkey options out of the undocumented feature
9830 area because they are useful for the DSA situation and should be
9831 recognized by the users.
9832 [Ralf S. Engelschall]
9834 *) Fix the cipher decision scheme for export ciphers: the export bits are
9835 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9836 SSL_EXP_MASK. So, the original variable has to be used instead of the
9837 already masked variable.
9838 [Richard Levitte <levitte@stacken.kth.se>]
9840 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9841 [Richard Levitte <levitte@stacken.kth.se>]
9843 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9844 from `int' to `unsigned int' because it's a length and initialized by
9845 EVP_DigestFinal() which expects an `unsigned int *'.
9846 [Richard Levitte <levitte@stacken.kth.se>]
9848 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9849 script. Instead use the usual Shell->Perl transition trick.
9850 [Ralf S. Engelschall]
9852 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9853 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9854 -noout -modulus' as it's already the case for `openssl rsa -noout
9855 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9856 currently the public key is printed (a decision which was already done by
9857 `openssl dsa -modulus' in the past) which serves a similar purpose.
9858 Additionally the NO_RSA no longer completely removes the whole -modulus
9859 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9861 [Ralf S. Engelschall]
9863 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9864 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9865 [Arne Ansper <arne@ats.cyber.ee>]
9867 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9868 to be added. Now both 'req' and 'ca' can use new objects defined in the
9872 *) Add cool BIO that does syslog (or event log on NT).
9873 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9875 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9876 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9877 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9878 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9881 *) Add preliminary config info for new extension code.
9884 *) Make RSA_NO_PADDING really use no padding.
9885 [Ulf Moeller <ulf@fitug.de>]
9887 *) Generate errors when private/public key check is done.
9890 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9891 for some CRL extensions and new objects added.
9894 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9895 key usage extension and fuller support for authority key id.
9898 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9899 padding method for RSA, which is recommended for new applications in PKCS
9900 #1 v2.0 (RFC 2437, October 1998).
9901 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9902 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9903 against Bleichbacher's attack on RSA.
9904 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9907 *) Updates to the new SSL compression code
9908 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9910 *) Fix so that the version number in the master secret, when passed
9911 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9912 (because the server will not accept higher), that the version number
9913 is 0x03,0x01, not 0x03,0x00
9914 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9916 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9917 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9918 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9921 *) Support for RAW extensions where an arbitrary extension can be
9922 created by including its DER encoding. See apps/openssl.cnf for
9926 *) Make sure latest Perl versions don't interpret some generated C array
9927 code as Perl array code in the crypto/err/err_genc.pl script.
9928 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9930 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9931 not many people have the assembler. Various Win32 compilation fixes and
9932 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9936 *) Modify configure script 'Configure' to automatically create crypto/date.h
9937 file under Win32 and also build pem.h from pem.org. New script
9938 util/mkfiles.pl to create the MINFO file on environments that can't do a
9939 'make files': perl util/mkfiles.pl >MINFO should work.
9942 *) Major rework of DES function declarations, in the pursuit of correctness
9943 and purity. As a result, many evil casts evaporated, and some weirdness,
9944 too. You may find this causes warnings in your code. Zapping your evil
9945 casts will probably fix them. Mostly.
9948 *) Fix for a typo in asn1.h. Bug fix to object creation script
9949 obj_dat.pl. It considered a zero in an object definition to mean
9950 "end of object": none of the objects in objects.h have any zeros
9951 so it wasn't spotted.
9952 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9954 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9955 Masking (CBCM). In the absence of test vectors, the best I have been able
9956 to do is check that the decrypt undoes the encrypt, so far. Send me test
9957 vectors if you have them.
9960 *) Correct calculation of key length for export ciphers (too much space was
9961 allocated for null ciphers). This has not been tested!
9964 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9965 message is now correct (it understands "crypto" and "ssl" on its
9966 command line). There is also now an "update" option. This will update
9967 the util/ssleay.num and util/libeay.num files with any new functions.
9969 perl util/mkdef.pl crypto ssl update
9970 it will update them.
9973 *) Overhauled the Perl interface (perl/*):
9974 - ported BN stuff to OpenSSL's different BN library
9975 - made the perl/ source tree CVS-aware
9976 - renamed the package from SSLeay to OpenSSL (the files still contain
9977 their history because I've copied them in the repository)
9978 - removed obsolete files (the test scripts will be replaced
9979 by better Test::Harness variants in the future)
9980 [Ralf S. Engelschall]
9982 *) First cut for a very conservative source tree cleanup:
9983 1. merge various obsolete readme texts into doc/ssleay.txt
9984 where we collect the old documents and readme texts.
9985 2. remove the first part of files where I'm already sure that we no
9986 longer need them because of three reasons: either they are just temporary
9987 files which were left by Eric or they are preserved original files where
9988 I've verified that the diff is also available in the CVS via "cvs diff
9989 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9990 the crypto/md/ stuff).
9991 [Ralf S. Engelschall]
9993 *) More extension code. Incomplete support for subject and issuer alt
9994 name, issuer and authority key id. Change the i2v function parameters
9995 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9996 what that's for :-) Fix to ASN1 macro which messed up
9997 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10000 *) Preliminary support for ENUMERATED type. This is largely copied from the
10004 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10005 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10007 *) Make sure `make rehash' target really finds the `openssl' program.
10008 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10010 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10011 like to hear about it if this slows down other processors.
10014 *) Add CygWin32 platform information to Configure script.
10015 [Alan Batie <batie@aahz.jf.intel.com>]
10017 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10018 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10020 *) New program nseq to manipulate netscape certificate sequences
10023 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10027 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10028 but the BN code had some problems that would cause failures when
10029 doing certificate verification and some other functions.
10030 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10032 *) Add ASN1 and PEM code to support netscape certificate sequences.
10035 *) Add ASN1 and PEM code to support netscape certificate sequences.
10038 *) Add several PKIX and private extended key usage OIDs.
10041 *) Modify the 'ca' program to handle the new extension code. Modify
10042 openssl.cnf for new extension format, add comments.
10045 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10046 and add a sample to openssl.cnf so req -x509 now adds appropriate
10050 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10051 error code, add initial support to X509_print() and x509 application.
10054 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10055 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10056 stuff is currently isolated and isn't even compiled yet.
10059 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10060 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10061 Removed the versions check from X509 routines when loading extensions:
10062 this allows certain broken certificates that don't set the version
10063 properly to be processed.
10066 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10067 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10068 can still be regenerated with "make depend".
10071 *) Spelling mistake in C version of CAST-128.
10072 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10074 *) Changes to the error generation code. The perl script err-code.pl
10075 now reads in the old error codes and retains the old numbers, only
10076 adding new ones if necessary. It also only changes the .err files if new
10077 codes are added. The makefiles have been modified to only insert errors
10078 when needed (to avoid needlessly modifying header files). This is done
10079 by only inserting errors if the .err file is newer than the auto generated
10080 C file. To rebuild all the error codes from scratch (the old behaviour)
10081 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10082 or delete all the .err files.
10085 *) CAST-128 was incorrectly implemented for short keys. The C version has
10086 been fixed, but is untested. The assembler versions are also fixed, but
10087 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10088 to regenerate it if needed.
10089 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10090 Hagino <itojun@kame.net>]
10092 *) File was opened incorrectly in randfile.c.
10093 [Ulf Möller <ulf@fitug.de>]
10095 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10096 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10097 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10098 al: it's just almost always a UTCTime. Note this patch adds new error
10099 codes so do a "make errors" if there are problems.
10102 *) Correct Linux 1 recognition in config.
10103 [Ulf Möller <ulf@fitug.de>]
10105 *) Remove pointless MD5 hash when using DSA keys in ca.
10106 [Anonymous <nobody@replay.com>]
10108 *) Generate an error if given an empty string as a cert directory. Also
10109 generate an error if handed NULL (previously returned 0 to indicate an
10110 error, but didn't set one).
10111 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10113 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10116 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10117 parameters. This was causing a warning which killed off the Win32 compile.
10120 *) Remove C++ style comments from crypto/bn/bn_local.h.
10121 [Neil Costigan <neil.costigan@celocom.com>]
10123 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10124 based on a text string, looking up short and long names and finally
10125 "dot" format. The "dot" format stuff didn't work. Added new function
10126 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10127 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10128 OID is not part of the table.
10131 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10132 X509_LOOKUP_by_alias().
10135 *) Sort openssl functions by name.
10138 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10139 encryption from sample DSA keys (in case anyone is interested the password
10143 *) Make _all_ *_free functions accept a NULL pointer.
10144 [Frans Heymans <fheymans@isaserver.be>]
10146 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10148 [Anonymous <nobody@replay.com>]
10150 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10151 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10153 *) Don't blow it for numeric -newkey arguments to apps/req.
10154 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10156 *) Temp key "for export" tests were wrong in s3_srvr.c.
10157 [Anonymous <nobody@replay.com>]
10159 *) Add prototype for temp key callback functions
10160 SSL_CTX_set_tmp_{rsa,dh}_callback().
10163 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10164 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10167 *) X509_name_add_entry() freed the wrong thing after an error.
10168 [Arne Ansper <arne@ats.cyber.ee>]
10170 *) rsa_eay.c would attempt to free a NULL context.
10171 [Arne Ansper <arne@ats.cyber.ee>]
10173 *) BIO_s_socket() had a broken should_retry() on Windoze.
10174 [Arne Ansper <arne@ats.cyber.ee>]
10176 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10177 [Arne Ansper <arne@ats.cyber.ee>]
10179 *) Make sure the already existing X509_STORE->depth variable is initialized
10180 in X509_STORE_new(), but document the fact that this variable is still
10181 unused in the certificate verification process.
10182 [Ralf S. Engelschall]
10184 *) Fix the various library and apps files to free up pkeys obtained from
10185 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10188 *) Fix reference counting in X509_PUBKEY_get(). This makes
10189 demos/maurice/example2.c work, amongst others, probably.
10190 [Steve Henson and Ben Laurie]
10192 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10193 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10194 are no longer created. This way we have a single and consistent command
10195 line interface `openssl <command>', similar to `cvs <command>'.
10196 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10198 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10199 BIT STRING wrapper always have zero unused bits.
10202 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10205 *) Make the top-level INSTALL documentation easier to understand.
10208 *) Makefiles updated to exit if an error occurs in a sub-directory
10209 make (including if user presses ^C) [Paul Sutton]
10211 *) Make Montgomery context stuff explicit in RSA data structure.
10214 *) Fix build order of pem and err to allow for generated pem.h.
10217 *) Fix renumbering bug in X509_NAME_delete_entry().
10220 *) Enhanced the err-ins.pl script so it makes the error library number
10221 global and can add a library name. This is needed for external ASN1 and
10222 other error libraries.
10225 *) Fixed sk_insert which never worked properly.
10228 *) Fix ASN1 macros so they can handle indefinite length construted
10229 EXPLICIT tags. Some non standard certificates use these: they can now
10233 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10234 into a single doc/ssleay.txt bundle. This way the information is still
10235 preserved but no longer messes up this directory. Now it's new room for
10236 the new set of documenation files.
10237 [Ralf S. Engelschall]
10239 *) SETs were incorrectly DER encoded. This was a major pain, because they
10240 shared code with SEQUENCEs, which aren't coded the same. This means that
10241 almost everything to do with SETs or SEQUENCEs has either changed name or
10242 number of arguments.
10243 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10245 *) Fix test data to work with the above.
10248 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10249 was already fixed by Eric for 0.9.1 it seems.
10250 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10252 *) Autodetect FreeBSD3.
10255 *) Fix various bugs in Configure. This affects the following platforms:
10259 unixware-2.0-pentium
10263 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10264 before they are needed.
10267 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10271 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10273 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10274 changed SSLeay to OpenSSL in version strings.
10275 [Ralf S. Engelschall]
10277 *) Some fixups to the top-level documents.
10280 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10281 because the symlink to include/ was missing.
10282 [Ralf S. Engelschall]
10284 *) Incorporated the popular no-RSA/DSA-only patches
10285 which allow to compile a RSA-free SSLeay.
10286 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10288 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10289 when "ssleay" is still not found.
10290 [Ralf S. Engelschall]
10292 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10293 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10295 *) Updated the README file.
10296 [Ralf S. Engelschall]
10298 *) Added various .cvsignore files in the CVS repository subdirs
10299 to make a "cvs update" really silent.
10300 [Ralf S. Engelschall]
10302 *) Recompiled the error-definition header files and added
10303 missing symbols to the Win32 linker tables.
10304 [Ralf S. Engelschall]
10306 *) Cleaned up the top-level documents;
10307 o new files: CHANGES and LICENSE
10308 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10309 o merged COPYRIGHT into LICENSE
10310 o removed obsolete TODO file
10311 o renamed MICROSOFT to INSTALL.W32
10312 [Ralf S. Engelschall]
10314 *) Removed dummy files from the 0.9.1b source tree:
10315 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10316 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10317 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10318 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10319 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10320 [Ralf S. Engelschall]
10322 *) Added various platform portability fixes.
10325 *) The Genesis of the OpenSSL rpject:
10326 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10327 Young and Tim J. Hudson created while they were working for C2Net until
10329 [The OpenSSL Project]
10332 Changes between 0.9.0b and 0.9.1b [not released]
10334 *) Updated a few CA certificates under certs/
10337 *) Changed some BIGNUM api stuff.
10340 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10341 DGUX x86, Linux Alpha, etc.
10344 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10345 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10349 *) Add -strparse option to asn1pars program which parses nested
10351 [Dr Stephen Henson <shenson@bigfoot.com>]
10353 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10356 *) DSA fix for "ca" program.
10359 *) Added "-genkey" option to "dsaparam" program.
10362 *) Added RIPE MD160 (rmd160) message digest.
10365 *) Added -a (all) option to "ssleay version" command.
10368 *) Added PLATFORM define which is the id given to Configure.
10371 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10374 *) Extended the ASN.1 parser routines.
10377 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10380 *) Added a BN_CTX to the BN library.
10383 *) Fixed the weak key values in DES library
10386 *) Changed API in EVP library for cipher aliases.
10389 *) Added support for RC2/64bit cipher.
10392 *) Converted the lhash library to the crypto/mem.c functions.
10395 *) Added more recognized ASN.1 object ids.
10398 *) Added more RSA padding checks for SSL/TLS.
10401 *) Added BIO proxy/filter functionality.
10404 *) Added extra_certs to SSL_CTX which can be used
10405 send extra CA certificates to the client in the CA cert chain sending
10406 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10409 *) Now Fortezza is denied in the authentication phase because
10410 this is key exchange mechanism is not supported by SSLeay at all.
10413 *) Additional PKCS1 checks.
10416 *) Support the string "TLSv1" for all TLS v1 ciphers.
10419 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10420 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10423 *) Fixed a few memory leaks.
10426 *) Fixed various code and comment typos.
10429 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10430 bytes sent in the client random.
10431 [Edward Bishop <ebishop@spyglass.com>]