5 Changes between 1.0.1q and 1.0.1r [xx XXX xxxx]
7 *) Reject DH handshakes with parameters shorter than 1024 bits.
10 Changes between 1.0.1p and 1.0.1q [3 Dec 2015]
12 *) Certificate verify crash with missing PSS parameter
14 The signature verification routines will crash with a NULL pointer
15 dereference if presented with an ASN.1 signature using the RSA PSS
16 algorithm and absent mask generation function parameter. Since these
17 routines are used to verify certificate signature algorithms this can be
18 used to crash any certificate verification operation and exploited in a
19 DoS attack. Any application which performs certificate verification is
20 vulnerable including OpenSSL clients and servers which enable client
23 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
27 *) X509_ATTRIBUTE memory leak
29 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
30 memory. This structure is used by the PKCS#7 and CMS routines so any
31 application which reads PKCS#7 or CMS data from untrusted sources is
32 affected. SSL/TLS is not affected.
34 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
39 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
40 This changes the decoding behaviour for some invalid messages,
41 though the change is mostly in the more lenient direction, and
42 legacy behaviour is preserved as much as possible.
45 *) In DSA_generate_parameters_ex, if the provided seed is too short,
47 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
49 Changes between 1.0.1o and 1.0.1p [9 Jul 2015]
51 *) Alternate chains certificate forgery
53 During certificate verfification, OpenSSL will attempt to find an
54 alternative certificate chain if the first attempt to build such a chain
55 fails. An error in the implementation of this logic can mean that an
56 attacker could cause certain checks on untrusted certificates to be
57 bypassed, such as the CA flag, enabling them to use a valid leaf
58 certificate to act as a CA and "issue" an invalid certificate.
60 This issue was reported to OpenSSL by Adam Langley/David Benjamin
65 *) Race condition handling PSK identify hint
67 If PSK identity hints are received by a multi-threaded client then
68 the values are wrongly updated in the parent SSL_CTX structure. This can
69 result in a race condition potentially leading to a double free of the
74 Changes between 1.0.1n and 1.0.1o [12 Jun 2015]
75 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
76 incompatibility in the handling of HMAC. The previous ABI has now been
79 Changes between 1.0.1m and 1.0.1n [11 Jun 2015]
81 *) Malformed ECParameters causes infinite loop
83 When processing an ECParameters structure OpenSSL enters an infinite loop
84 if the curve specified is over a specially malformed binary polynomial
87 This can be used to perform denial of service against any
88 system which processes public keys, certificate requests or
89 certificates. This includes TLS clients and TLS servers with
90 client authentication enabled.
92 This issue was reported to OpenSSL by Joseph Barr-Pixton.
96 *) Exploitable out-of-bounds read in X509_cmp_time
98 X509_cmp_time does not properly check the length of the ASN1_TIME
99 string and can read a few bytes out of bounds. In addition,
100 X509_cmp_time accepts an arbitrary number of fractional seconds in the
103 An attacker can use this to craft malformed certificates and CRLs of
104 various sizes and potentially cause a segmentation fault, resulting in
105 a DoS on applications that verify certificates or CRLs. TLS clients
106 that verify CRLs are affected. TLS clients and servers with client
107 authentication enabled may be affected if they use custom verification
110 This issue was reported to OpenSSL by Robert Swiecki (Google), and
111 independently by Hanno Böck.
115 *) PKCS7 crash with missing EnvelopedContent
117 The PKCS#7 parsing code does not handle missing inner EncryptedContent
118 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
119 with missing content and trigger a NULL pointer dereference on parsing.
121 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
122 structures from untrusted sources are affected. OpenSSL clients and
123 servers are not affected.
125 This issue was reported to OpenSSL by Michal Zalewski (Google).
129 *) CMS verify infinite loop with unknown hash function
131 When verifying a signedData message the CMS code can enter an infinite loop
132 if presented with an unknown hash function OID. This can be used to perform
133 denial of service against any system which verifies signedData messages using
135 This issue was reported to OpenSSL by Johannes Bauer.
139 *) Race condition handling NewSessionTicket
141 If a NewSessionTicket is received by a multi-threaded client when attempting to
142 reuse a previous ticket then a race condition can occur potentially leading to
143 a double free of the ticket data.
147 *) Reject DH handshakes with parameters shorter than 768 bits.
148 [Kurt Roeckx and Emilia Kasper]
150 *) dhparam: generate 2048-bit parameters by default.
151 [Kurt Roeckx and Emilia Kasper]
153 Changes between 1.0.1l and 1.0.1m [19 Mar 2015]
155 *) Segmentation fault in ASN1_TYPE_cmp fix
157 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
158 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
159 certificate signature algorithm consistency this can be used to crash any
160 certificate verification operation and exploited in a DoS attack. Any
161 application which performs certificate verification is vulnerable including
162 OpenSSL clients and servers which enable client authentication.
166 *) ASN.1 structure reuse memory corruption fix
168 Reusing a structure in ASN.1 parsing may allow an attacker to cause
169 memory corruption via an invalid write. Such reuse is and has been
170 strongly discouraged and is believed to be rare.
172 Applications that parse structures containing CHOICE or ANY DEFINED BY
173 components may be affected. Certificate parsing (d2i_X509 and related
174 functions) are however not affected. OpenSSL clients and servers are
179 *) PKCS7 NULL pointer dereferences fix
181 The PKCS#7 parsing code does not handle missing outer ContentInfo
182 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
183 missing content and trigger a NULL pointer dereference on parsing.
185 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
186 otherwise parse PKCS#7 structures from untrusted sources are
187 affected. OpenSSL clients and servers are not affected.
189 This issue was reported to OpenSSL by Michal Zalewski (Google).
193 *) DoS via reachable assert in SSLv2 servers fix
195 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
196 servers that both support SSLv2 and enable export cipher suites by sending
197 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
199 This issue was discovered by Sean Burford (Google) and Emilia Käsper
200 (OpenSSL development team).
204 *) Use After Free following d2i_ECPrivatekey error fix
206 A malformed EC private key file consumed via the d2i_ECPrivateKey function
207 could cause a use after free condition. This, in turn, could cause a double
208 free in several private key parsing functions (such as d2i_PrivateKey
209 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
210 for applications that receive EC private keys from untrusted
211 sources. This scenario is considered rare.
213 This issue was discovered by the BoringSSL project and fixed in their
218 *) X509_to_X509_REQ NULL pointer deref fix
220 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
221 the certificate key is invalid. This function is rarely used in practice.
223 This issue was discovered by Brian Carpenter.
227 *) Removed the export ciphers from the DEFAULT ciphers
230 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
232 *) Build fixes for the Windows and OpenVMS platforms
233 [Matt Caswell and Richard Levitte]
235 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
237 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
238 message can cause a segmentation fault in OpenSSL due to a NULL pointer
239 dereference. This could lead to a Denial Of Service attack. Thanks to
240 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
244 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
245 dtls1_buffer_record function under certain conditions. In particular this
246 could occur if an attacker sent repeated DTLS records with the same
247 sequence number but for the next epoch. The memory leak could be exploited
248 by an attacker in a Denial of Service attack through memory exhaustion.
249 Thanks to Chris Mueller for reporting this issue.
253 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
254 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
255 method would be set to NULL which could later result in a NULL pointer
256 dereference. Thanks to Frank Schmirler for reporting this issue.
260 *) Abort handshake if server key exchange message is omitted for ephemeral
263 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
264 reporting this issue.
268 *) Remove non-export ephemeral RSA code on client and server. This code
269 violated the TLS standard by allowing the use of temporary RSA keys in
270 non-export ciphersuites and could be used by a server to effectively
271 downgrade the RSA key length used to a value smaller than the server
272 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
273 INRIA or reporting this issue.
277 *) Fixed issue where DH client certificates are accepted without verification.
278 An OpenSSL server will accept a DH certificate for client authentication
279 without the certificate verify message. This effectively allows a client to
280 authenticate without the use of a private key. This only affects servers
281 which trust a client certificate authority which issues certificates
282 containing DH keys: these are extremely rare and hardly ever encountered.
283 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
288 *) Ensure that the session ID context of an SSL is updated when its
289 SSL_CTX is updated via SSL_set_SSL_CTX.
291 The session ID context is typically set from the parent SSL_CTX,
292 and can vary with the CTX.
295 *) Fix various certificate fingerprint issues.
297 By using non-DER or invalid encodings outside the signed portion of a
298 certificate the fingerprint can be changed without breaking the signature.
299 Although no details of the signed portion of the certificate can be changed
300 this can cause problems with some applications: e.g. those using the
301 certificate fingerprint for blacklists.
303 1. Reject signatures with non zero unused bits.
305 If the BIT STRING containing the signature has non zero unused bits reject
306 the signature. All current signature algorithms require zero unused bits.
308 2. Check certificate algorithm consistency.
310 Check the AlgorithmIdentifier inside TBS matches the one in the
311 certificate signature. NB: this will result in signature failure
312 errors for some broken certificates.
314 Thanks to Konrad Kraszewski from Google for reporting this issue.
316 3. Check DSA/ECDSA signatures use DER.
318 Reencode DSA/ECDSA signatures and compare with the original received
319 signature. Return an error if there is a mismatch.
321 This will reject various cases including garbage after signature
322 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
323 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
324 (negative or with leading zeroes).
326 Further analysis was conducted and fixes were developed by Stephen Henson
327 of the OpenSSL core team.
332 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
333 results on some platforms, including x86_64. This bug occurs at random
334 with a very low probability, and is not known to be exploitable in any
335 way, though its exact impact is difficult to determine. Thanks to Pieter
336 Wuille (Blockstream) who reported this issue and also suggested an initial
337 fix. Further analysis was conducted by the OpenSSL development team and
338 Adam Langley of Google. The final fix was developed by Andy Polyakov of
339 the OpenSSL core team.
343 *) Do not resume sessions on the server if the negotiated protocol
344 version does not match the session's version. Resuming with a different
345 version, while not strictly forbidden by the RFC, is of questionable
346 sanity and breaks all known clients.
347 [David Benjamin, Emilia Käsper]
349 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
350 early CCS messages during renegotiation. (Note that because
351 renegotiation is encrypted, this early CCS was not exploitable.)
354 *) Tighten client-side session ticket handling during renegotiation:
355 ensure that the client only accepts a session ticket if the server sends
356 the extension anew in the ServerHello. Previously, a TLS client would
357 reuse the old extension state and thus accept a session ticket if one was
358 announced in the initial ServerHello.
360 Similarly, ensure that the client requires a session ticket if one
361 was advertised in the ServerHello. Previously, a TLS client would
362 ignore a missing NewSessionTicket message.
365 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
369 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
370 sends a carefully crafted handshake message, to cause OpenSSL to fail
371 to free up to 64k of memory causing a memory leak. This could be
372 exploited in a Denial Of Service attack. This issue affects OpenSSL
373 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
374 whether SRTP is used or configured. Implementations of OpenSSL that
375 have been compiled with OPENSSL_NO_SRTP defined are not affected.
377 The fix was developed by the OpenSSL team.
381 *) Session Ticket Memory Leak.
383 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
384 integrity of that ticket is first verified. In the event of a session
385 ticket integrity check failing, OpenSSL will fail to free memory
386 causing a memory leak. By sending a large number of invalid session
387 tickets an attacker could exploit this issue in a Denial Of Service
392 *) Build option no-ssl3 is incomplete.
394 When OpenSSL is configured with "no-ssl3" as a build option, servers
395 could accept and complete a SSL 3.0 handshake, and clients could be
396 configured to send them.
398 [Akamai and the OpenSSL team]
400 *) Add support for TLS_FALLBACK_SCSV.
401 Client applications doing fallback retries should call
402 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
404 [Adam Langley, Bodo Moeller]
406 *) Add additional DigestInfo checks.
408 Reencode DigestInto in DER and check against the original when
409 verifying RSA signature: this will reject any improperly encoded
410 DigestInfo structures.
412 Note: this is a precautionary measure and no attacks are currently known.
416 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
418 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
419 SRP code can be overrun an internal buffer. Add sanity check that
420 g, A, B < N to SRP code.
422 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
423 Group for discovering this issue.
427 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
428 TLS 1.0 instead of higher protocol versions when the ClientHello message
429 is badly fragmented. This allows a man-in-the-middle attacker to force a
430 downgrade to TLS 1.0 even if both the server and the client support a
431 higher protocol version, by modifying the client's TLS records.
433 Thanks to David Benjamin and Adam Langley (Google) for discovering and
434 researching this issue.
438 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
439 to a denial of service attack. A malicious server can crash the client
440 with a null pointer dereference (read) by specifying an anonymous (EC)DH
441 ciphersuite and sending carefully crafted handshake messages.
443 Thanks to Felix Gröbert (Google) for discovering and researching this
448 *) By sending carefully crafted DTLS packets an attacker could cause openssl
449 to leak memory. This can be exploited through a Denial of Service attack.
450 Thanks to Adam Langley for discovering and researching this issue.
454 *) An attacker can force openssl to consume large amounts of memory whilst
455 processing DTLS handshake messages. This can be exploited through a
456 Denial of Service attack.
457 Thanks to Adam Langley for discovering and researching this issue.
461 *) An attacker can force an error condition which causes openssl to crash
462 whilst processing DTLS packets due to memory being freed twice. This
463 can be exploited through a Denial of Service attack.
464 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
469 *) If a multithreaded client connects to a malicious server using a resumed
470 session and the server sends an ec point format extension it could write
471 up to 255 bytes to freed memory.
473 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
478 *) A malicious server can crash an OpenSSL client with a null pointer
479 dereference (read) by specifying an SRP ciphersuite even though it was not
480 properly negotiated with the client. This can be exploited through a
481 Denial of Service attack.
483 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
484 discovering and researching this issue.
488 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
489 X509_name_oneline, X509_name_print_ex et al. to leak some information
490 from the stack. Applications may be affected if they echo pretty printing
491 output to the attacker.
493 Thanks to Ivan Fratric (Google) for discovering this issue.
495 [Emilia Käsper, and Steve Henson]
497 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
498 for corner cases. (Certain input points at infinity could lead to
499 bogus results, with non-infinity inputs mapped to infinity too.)
502 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
504 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
505 handshake can force the use of weak keying material in OpenSSL
506 SSL/TLS clients and servers.
508 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
509 researching this issue. (CVE-2014-0224)
510 [KIKUCHI Masashi, Steve Henson]
512 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
513 OpenSSL DTLS client the code can be made to recurse eventually crashing
516 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
518 [Imre Rad, Steve Henson]
520 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
521 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
522 client or server. This is potentially exploitable to run arbitrary
523 code on a vulnerable client or server.
525 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
526 [Jüri Aedla, Steve Henson]
528 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
529 are subject to a denial of service attack.
531 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
532 this issue. (CVE-2014-3470)
533 [Felix Gröbert, Ivan Fratric, Steve Henson]
535 *) Harmonize version and its documentation. -f flag is used to display
537 [mancha <mancha1@zoho.com>]
539 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
541 [mancha <mancha1@zoho.com>]
543 *) Fix some double frees. These are not thought to be exploitable.
544 [mancha <mancha1@zoho.com>]
546 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
548 *) A missing bounds check in the handling of the TLS heartbeat extension
549 can be used to reveal up to 64k of memory to a connected client or
552 Thanks for Neel Mehta of Google Security for discovering this bug and to
553 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
554 preparing the fix (CVE-2014-0160)
555 [Adam Langley, Bodo Moeller]
557 *) Fix for the attack described in the paper "Recovering OpenSSL
558 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
559 by Yuval Yarom and Naomi Benger. Details can be obtained from:
560 http://eprint.iacr.org/2014/140
562 Thanks to Yuval Yarom and Naomi Benger for discovering this
563 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
564 [Yuval Yarom and Naomi Benger]
566 *) TLS pad extension: draft-agl-tls-padding-03
568 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
569 TLS client Hello record length value would otherwise be > 255 and
570 less that 512 pad with a dummy extension containing zeroes so it
571 is at least 512 bytes long.
573 [Adam Langley, Steve Henson]
575 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
577 *) Fix for TLS record tampering bug. A carefully crafted invalid
578 handshake could crash OpenSSL with a NULL pointer exception.
579 Thanks to Anton Johansson for reporting this issues.
582 *) Keep original DTLS digest and encryption contexts in retransmission
583 structures so we can use the previous session parameters if they need
584 to be resent. (CVE-2013-6450)
587 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
588 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
589 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
590 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
591 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
592 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
593 [Rob Stradling, Adam Langley]
595 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
597 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
598 supporting platforms or when small records were transferred.
599 [Andy Polyakov, Steve Henson]
601 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
603 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
605 This addresses the flaw in CBC record processing discovered by
606 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
607 at: http://www.isg.rhul.ac.uk/tls/
609 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
610 Security Group at Royal Holloway, University of London
611 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
612 Emilia Käsper for the initial patch.
614 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
616 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
617 ciphersuites which can be exploited in a denial of service attack.
618 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
619 and detecting this bug and to Wolfgang Ettlinger
620 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
624 *) Return an error when checking OCSP signatures when key is NULL.
625 This fixes a DoS attack. (CVE-2013-0166)
628 *) Make openssl verify return errors.
629 [Chris Palmer <palmer@google.com> and Ben Laurie]
631 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
632 the right response is stapled. Also change SSL_get_certificate()
633 so it returns the certificate actually sent.
634 See http://rt.openssl.org/Ticket/Display.html?id=2836.
635 [Rob Stradling <rob.stradling@comodo.com>]
637 *) Fix possible deadlock when decoding public keys.
640 *) Don't use TLS 1.0 record version number in initial client hello
644 Changes between 1.0.1b and 1.0.1c [10 May 2012]
646 *) Sanity check record length before skipping explicit IV in TLS
647 1.2, 1.1 and DTLS to fix DoS attack.
649 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
650 fuzzing as a service testing platform.
654 *) Initialise tkeylen properly when encrypting CMS messages.
655 Thanks to Solar Designer of Openwall for reporting this issue.
658 *) In FIPS mode don't try to use composite ciphers as they are not
662 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
664 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
665 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
666 mean any application compiled against OpenSSL 1.0.0 headers setting
667 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
668 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
669 0x10000000L Any application which was previously compiled against
670 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
671 will need to be recompiled as a result. Letting be results in
672 inability to disable specifically TLS 1.1 and in client context,
673 in unlike event, limit maximum offered version to TLS 1.0 [see below].
676 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
677 disable just protocol X, but all protocols above X *if* there are
678 protocols *below* X still enabled. In more practical terms it means
679 that if application wants to disable TLS1.0 in favor of TLS1.1 and
680 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
681 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
685 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
687 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
688 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
689 in CRYPTO_realloc_clean.
691 Thanks to Tavis Ormandy, Google Security Team, for discovering this
692 issue and to Adam Langley <agl@chromium.org> for fixing it.
694 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
696 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
699 *) Workarounds for some broken servers that "hang" if a client hello
700 record length exceeds 255 bytes.
702 1. Do not use record version number > TLS 1.0 in initial client
703 hello: some (but not all) hanging servers will now work.
704 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
705 the number of ciphers sent in the client hello. This should be
706 set to an even number, such as 50, for example by passing:
707 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
708 Most broken servers should now work.
709 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
710 TLS 1.2 client support entirely.
713 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
716 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
718 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
719 STRING form instead of a DigestInfo.
722 *) The format used for MDC2 RSA signatures is inconsistent between EVP
723 and the RSA_sign/RSA_verify functions. This was made more apparent when
724 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
725 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
726 the correct format in RSA_verify so both forms transparently work.
729 *) Some servers which support TLS 1.0 can choke if we initially indicate
730 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
731 encrypted premaster secret. As a workaround use the maximum pemitted
732 client version in client hello, this should keep such servers happy
733 and still work with previous versions of OpenSSL.
736 *) Add support for TLS/DTLS heartbeats.
737 [Robin Seggelmann <seggelmann@fh-muenster.de>]
739 *) Add support for SCTP.
740 [Robin Seggelmann <seggelmann@fh-muenster.de>]
742 *) Improved PRNG seeding for VOS.
743 [Paul Green <Paul.Green@stratus.com>]
745 *) Extensive assembler packs updates, most notably:
747 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
748 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
749 - x86_64: bit-sliced AES implementation;
750 - ARM: NEON support, contemporary platforms optimizations;
751 - s390x: z196 support;
752 - *: GHASH and GF(2^m) multiplication implementations;
756 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
757 (removal of unnecessary code)
758 [Peter Sylvester <peter.sylvester@edelweb.fr>]
760 *) Add TLS key material exporter from RFC 5705.
763 *) Add DTLS-SRTP negotiation from RFC 5764.
766 *) Add Next Protocol Negotiation,
767 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
768 disabled with a no-npn flag to config or Configure. Code donated
770 [Adam Langley <agl@google.com> and Ben Laurie]
772 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
773 NIST-P256, NIST-P521, with constant-time single point multiplication on
774 typical inputs. Compiler support for the nonstandard type __uint128_t is
775 required to use this (present in gcc 4.4 and later, for 64-bit builds).
776 Code made available under Apache License version 2.0.
778 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
779 line to include this in your build of OpenSSL, and run "make depend" (or
780 "make update"). This enables the following EC_METHODs:
782 EC_GFp_nistp224_method()
783 EC_GFp_nistp256_method()
784 EC_GFp_nistp521_method()
786 EC_GROUP_new_by_curve_name() will automatically use these (while
787 EC_GROUP_new_curve_GFp() currently prefers the more flexible
789 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
791 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
792 all platforms. Move ssize_t definition from e_os.h to the public
793 header file e_os2.h as it now appears in public header file cms.h
796 *) New -sigopt option to the ca, req and x509 utilities. Additional
797 signature parameters can be passed using this option and in
801 *) Add RSA PSS signing function. This will generate and set the
802 appropriate AlgorithmIdentifiers for PSS based on those in the
803 corresponding EVP_MD_CTX structure. No application support yet.
806 *) Support for companion algorithm specific ASN1 signing routines.
807 New function ASN1_item_sign_ctx() signs a pre-initialised
808 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
809 the appropriate parameters.
812 *) Add new algorithm specific ASN1 verification initialisation function
813 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
814 handling will be the same no matter what EVP_PKEY_METHOD is used.
815 Add a PSS handler to support verification of PSS signatures: checked
816 against a number of sample certificates.
819 *) Add signature printing for PSS. Add PSS OIDs.
820 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
822 *) Add algorithm specific signature printing. An individual ASN1 method
823 can now print out signatures instead of the standard hex dump.
825 More complex signatures (e.g. PSS) can print out more meaningful
826 information. Include DSA version that prints out the signature
830 *) Password based recipient info support for CMS library: implementing
834 *) Split password based encryption into PBES2 and PBKDF2 functions. This
835 neatly separates the code into cipher and PBE sections and is required
836 for some algorithms that split PBES2 into separate pieces (such as
840 *) Session-handling fixes:
841 - Fix handling of connections that are resuming with a session ID,
842 but also support Session Tickets.
843 - Fix a bug that suppressed issuing of a new ticket if the client
844 presented a ticket with an expired session.
845 - Try to set the ticket lifetime hint to something reasonable.
846 - Make tickets shorter by excluding irrelevant information.
847 - On the client side, don't ignore renewed tickets.
848 [Adam Langley, Bodo Moeller (Google)]
850 *) Fix PSK session representation.
853 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
855 This work was sponsored by Intel.
858 *) Add GCM support to TLS library. Some custom code is needed to split
859 the IV between the fixed (from PRF) and explicit (from TLS record)
860 portions. This adds all GCM ciphersuites supported by RFC5288 and
861 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
862 add a special AESGCM string for GCM only.
865 *) Expand range of ctrls for AES GCM. Permit setting invocation
866 field on decrypt and retrieval of invocation field only on encrypt.
869 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
870 As required by RFC5289 these ciphersuites cannot be used if for
871 versions of TLS earlier than 1.2.
874 *) For FIPS capable OpenSSL interpret a NULL default public key method
875 as unset and return the appopriate default but do *not* set the default.
876 This means we can return the appopriate method in applications that
877 swicth between FIPS and non-FIPS modes.
880 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
881 ENGINE is used then we cannot handle that in the FIPS module so we
882 keep original code iff non-FIPS operations are allowed.
885 *) Add -attime option to openssl utilities.
886 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
888 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
891 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
892 FIPS EC methods unconditionally for now.
895 *) New build option no-ec2m to disable characteristic 2 code.
898 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
899 all cases can be covered as some introduce binary incompatibilities.
902 *) Redirect RSA operations to FIPS module including keygen,
903 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
906 *) Add similar low level API blocking to ciphers.
909 *) Low level digest APIs are not approved in FIPS mode: any attempt
910 to use these will cause a fatal error. Applications that *really* want
911 to use them can use the private_* version instead.
914 *) Redirect cipher operations to FIPS module for FIPS builds.
917 *) Redirect digest operations to FIPS module for FIPS builds.
920 *) Update build system to add "fips" flag which will link in fipscanister.o
921 for static and shared library builds embedding a signature if needed.
924 *) Output TLS supported curves in preference order instead of numerical
925 order. This is currently hardcoded for the highest order curves first.
926 This should be configurable so applications can judge speed vs strength.
929 *) Add TLS v1.2 server support for client authentication.
932 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
936 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
937 FIPS modules versions.
940 *) Add TLS v1.2 client side support for client authentication. Keep cache
941 of handshake records longer as we don't know the hash algorithm to use
942 until after the certificate request message is received.
945 *) Initial TLS v1.2 client support. Add a default signature algorithms
946 extension including all the algorithms we support. Parse new signature
947 format in client key exchange. Relax some ECC signing restrictions for
948 TLS v1.2 as indicated in RFC5246.
951 *) Add server support for TLS v1.2 signature algorithms extension. Switch
952 to new signature format when needed using client digest preference.
953 All server ciphersuites should now work correctly in TLS v1.2. No client
954 support yet and no support for client certificates.
957 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
958 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
959 ciphersuites. At present only RSA key exchange ciphersuites work with
960 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
961 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
962 and version checking.
965 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
966 with this defined it will not be affected by any changes to ssl internal
967 structures. Add several utility functions to allow openssl application
968 to work with OPENSSL_NO_SSL_INTERN defined.
972 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
974 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
977 *) Permit abbreviated handshakes when renegotiating using the function
978 SSL_renegotiate_abbreviated().
979 [Robin Seggelmann <seggelmann@fh-muenster.de>]
981 *) Add call to ENGINE_register_all_complete() to
982 ENGINE_load_builtin_engines(), so some implementations get used
983 automatically instead of needing explicit application support.
986 *) Add support for TLS key exporter as described in RFC5705.
987 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
989 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
990 a few changes are required:
992 Add SSL_OP_NO_TLSv1_1 flag.
994 Update version checking logic to handle version 1.1.
995 Add explicit IV handling (ported from DTLS code).
996 Add command line options to s_client/s_server.
999 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1001 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1002 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1003 content decryption and always return the same error. Note: this attack
1004 needs on average 2^20 messages so it only affects automated senders. The
1005 old behaviour can be reenabled in the CMS code by setting the
1006 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1007 an MMA defence is not necessary.
1008 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1009 this issue. (CVE-2012-0884)
1012 *) Fix CVE-2011-4619: make sure we really are receiving a
1013 client hello before rejecting multiple SGC restarts. Thanks to
1014 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1017 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1019 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1020 Thanks to Antonio Martin, Enterprise Secure Access Research and
1021 Development, Cisco Systems, Inc. for discovering this bug and
1022 preparing a fix. (CVE-2012-0050)
1025 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1027 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1028 of the Vaudenay padding oracle attack on CBC mode encryption
1029 which enables an efficient plaintext recovery attack against
1030 the OpenSSL implementation of DTLS. Their attack exploits timing
1031 differences arising during decryption processing. A research
1032 paper describing this attack can be found at:
1033 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1034 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1035 Security Group at Royal Holloway, University of London
1036 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1037 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1038 for preparing the fix. (CVE-2011-4108)
1039 [Robin Seggelmann, Michael Tuexen]
1041 *) Clear bytes used for block padding of SSL 3.0 records.
1043 [Adam Langley (Google)]
1045 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1046 Kadianakis <desnacked@gmail.com> for discovering this issue and
1047 Adam Langley for preparing the fix. (CVE-2011-4619)
1048 [Adam Langley (Google)]
1050 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1051 [Andrey Kulikov <amdeich@gmail.com>]
1053 *) Prevent malformed RFC3779 data triggering an assertion failure.
1054 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1055 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1056 [Rob Austein <sra@hactrn.net>]
1058 *) Improved PRNG seeding for VOS.
1059 [Paul Green <Paul.Green@stratus.com>]
1061 *) Fix ssl_ciph.c set-up race.
1062 [Adam Langley (Google)]
1064 *) Fix spurious failures in ecdsatest.c.
1065 [Emilia Käsper (Google)]
1067 *) Fix the BIO_f_buffer() implementation (which was mixing different
1068 interpretations of the '..._len' fields).
1069 [Adam Langley (Google)]
1071 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1072 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1073 threads won't reuse the same blinding coefficients.
1075 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1076 lock to call BN_BLINDING_invert_ex, and avoids one use of
1077 BN_BLINDING_update for each BN_BLINDING structure (previously,
1078 the last update always remained unused).
1079 [Emilia Käsper (Google)]
1081 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1082 [Bob Buckholz (Google)]
1084 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1086 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1087 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1088 [Kaspar Brand <ossl@velox.ch>]
1090 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1091 for multi-threaded use of ECDH. (CVE-2011-3210)
1092 [Adam Langley (Google)]
1094 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1097 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1098 signature public key algorithm by using OID xref utilities instead.
1099 Before this you could only use some ECC ciphersuites with SHA1 only.
1102 *) Add protection against ECDSA timing attacks as mentioned in the paper
1103 by Billy Bob Brumley and Nicola Tuveri, see:
1105 http://eprint.iacr.org/2011/232.pdf
1107 [Billy Bob Brumley and Nicola Tuveri]
1109 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1111 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1112 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1114 *) Fix bug in string printing code: if *any* escaping is enabled we must
1115 escape the escape character (backslash) or the resulting string is
1119 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1121 *) Disable code workaround for ancient and obsolete Netscape browsers
1122 and servers: an attacker can use it in a ciphersuite downgrade attack.
1123 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1126 *) Fixed J-PAKE implementation error, originally discovered by
1127 Sebastien Martini, further info and confirmation from Stefan
1128 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1131 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1133 *) Fix extension code to avoid race conditions which can result in a buffer
1134 overrun vulnerability: resumed sessions must not be modified as they can
1135 be shared by multiple threads. CVE-2010-3864
1138 *) Fix WIN32 build system to correctly link an ENGINE directory into
1142 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1144 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1146 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1148 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1150 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1151 context. The operation can be customised via the ctrl mechanism in
1152 case ENGINEs want to include additional functionality.
1155 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1158 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1159 output hashes compatible with older versions of OpenSSL.
1160 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1162 *) Fix compression algorithm handling: if resuming a session use the
1163 compression algorithm of the resumed session instead of determining
1164 it from client hello again. Don't allow server to change algorithm.
1167 *) Add load_crls() function to apps tidying load_certs() too. Add option
1168 to verify utility to allow additional CRLs to be included.
1171 *) Update OCSP request code to permit adding custom headers to the request:
1172 some responders need this.
1175 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1177 [Julia Lawall <julia@diku.dk>]
1179 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1180 needlessly dereferenced structures, used obsolete functions and
1181 didn't handle all updated verify codes correctly.
1184 *) Disable MD2 in the default configuration.
1187 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1188 indicate the initial BIO being pushed or popped. This makes it possible
1189 to determine whether the BIO is the one explicitly called or as a result
1190 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1191 it handles reference counts correctly and doesn't zero out the I/O bio
1192 when it is not being explicitly popped. WARNING: applications which
1193 included workarounds for the old buggy behaviour will need to be modified
1194 or they could free up already freed BIOs.
1197 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1198 renaming to all platforms (within the 0.9.8 branch, this was
1199 done conditionally on Netware platforms to avoid a name clash).
1200 [Guenter <lists@gknw.net>]
1202 *) Add ECDHE and PSK support to DTLS.
1203 [Michael Tuexen <tuexen@fh-muenster.de>]
1205 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1209 *) Add "missing" function EVP_MD_flags() (without this the only way to
1210 retrieve a digest flags is by accessing the structure directly. Update
1211 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1212 or cipher is registered as in the "from" argument. Print out all
1213 registered digests in the dgst usage message instead of manually
1214 attempting to work them out.
1217 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1218 this allows the use of compression and extensions. Change default cipher
1219 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1220 by default unless an application cipher string requests it.
1223 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1224 key ids to find matching certificates and keys but some PKCS#12 files
1225 don't follow the (somewhat unwritten) rules and this strategy fails.
1226 Now just gather all certificates together and the first private key
1227 then look for the first certificate that matches the key.
1230 *) Support use of registered digest and cipher names for dgst and cipher
1231 commands instead of having to add each one as a special case. So now
1238 openssl dgst -sha256 foo
1240 and this works for ENGINE based algorithms too.
1244 *) Update Gost ENGINE to support parameter files.
1245 [Victor B. Wagner <vitus@cryptocom.ru>]
1247 *) Support GeneralizedTime in ca utility.
1248 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1250 *) Enhance the hash format used for certificate directory links. The new
1251 form uses the canonical encoding (meaning equivalent names will work
1252 even if they aren't identical) and uses SHA1 instead of MD5. This form
1253 is incompatible with the older format and as a result c_rehash should
1254 be used to rebuild symbolic links.
1257 *) Make PKCS#8 the default write format for private keys, replacing the
1258 traditional format. This form is standardised, more secure and doesn't
1259 include an implicit MD5 dependency.
1262 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1263 committed to OpenSSL should pass this lot as a minimum.
1266 *) Add session ticket override functionality for use by EAP-FAST.
1267 [Jouni Malinen <j@w1.fi>]
1269 *) Modify HMAC functions to return a value. Since these can be implemented
1270 in an ENGINE errors can occur.
1273 *) Type-checked OBJ_bsearch_ex.
1276 *) Type-checked OBJ_bsearch. Also some constification necessitated
1277 by type-checking. Still to come: TXT_DB, bsearch(?),
1278 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1282 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1283 seconds to a tm structure directly, instead of going through OS
1284 specific date routines. This avoids any issues with OS routines such
1285 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1286 and X509_time_adj_ex() to cover the extended range. The existing
1287 X509_time_adj() is still usable and will no longer have any date issues.
1290 *) Delta CRL support. New use deltas option which will attempt to locate
1291 and search any appropriate delta CRLs available.
1293 This work was sponsored by Google.
1296 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1297 code and add additional score elements. Validate alternate CRL paths
1298 as part of the CRL checking and indicate a new error "CRL path validation
1299 error" in this case. Applications wanting additional details can use
1300 the verify callback and check the new "parent" field. If this is not
1301 NULL CRL path validation is taking place. Existing applications wont
1302 see this because it requires extended CRL support which is off by
1305 This work was sponsored by Google.
1308 *) Support for freshest CRL extension.
1310 This work was sponsored by Google.
1313 *) Initial indirect CRL support. Currently only supported in the CRLs
1314 passed directly and not via lookup. Process certificate issuer
1315 CRL entry extension and lookup CRL entries by bother issuer name
1316 and serial number. Check and process CRL issuer entry in IDP extension.
1318 This work was sponsored by Google.
1321 *) Add support for distinct certificate and CRL paths. The CRL issuer
1322 certificate is validated separately in this case. Only enabled if
1323 an extended CRL support flag is set: this flag will enable additional
1324 CRL functionality in future.
1326 This work was sponsored by Google.
1329 *) Add support for policy mappings extension.
1331 This work was sponsored by Google.
1334 *) Fixes to pathlength constraint, self issued certificate handling,
1335 policy processing to align with RFC3280 and PKITS tests.
1337 This work was sponsored by Google.
1340 *) Support for name constraints certificate extension. DN, email, DNS
1341 and URI types are currently supported.
1343 This work was sponsored by Google.
1346 *) To cater for systems that provide a pointer-based thread ID rather
1347 than numeric, deprecate the current numeric thread ID mechanism and
1348 replace it with a structure and associated callback type. This
1349 mechanism allows a numeric "hash" to be extracted from a thread ID in
1350 either case, and on platforms where pointers are larger than 'long',
1351 mixing is done to help ensure the numeric 'hash' is usable even if it
1352 can't be guaranteed unique. The default mechanism is to use "&errno"
1353 as a pointer-based thread ID to distinguish between threads.
1355 Applications that want to provide their own thread IDs should now use
1356 CRYPTO_THREADID_set_callback() to register a callback that will call
1357 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1359 Note that ERR_remove_state() is now deprecated, because it is tied
1360 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1361 to free the current thread's error state should be replaced by
1362 ERR_remove_thread_state(NULL).
1364 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1365 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1366 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1367 application was previously providing a numeric thread callback that
1368 was inappropriate for distinguishing threads, then uniqueness might
1369 have been obtained with &errno that happened immediately in the
1370 intermediate development versions of OpenSSL; this is no longer the
1371 case, the numeric thread callback will now override the automatic use
1373 [Geoff Thorpe, with help from Bodo Moeller]
1375 *) Initial support for different CRL issuing certificates. This covers a
1376 simple case where the self issued certificates in the chain exist and
1377 the real CRL issuer is higher in the existing chain.
1379 This work was sponsored by Google.
1382 *) Removed effectively defunct crypto/store from the build.
1385 *) Revamp of STACK to provide stronger type-checking. Still to come:
1386 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1387 ASN1_STRING, CONF_VALUE.
1390 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1391 RAM on SSL connections. This option can save about 34k per idle SSL.
1394 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1395 STACK, TXT_DB, bsearch, qsort.
1398 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1399 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1400 support for data, signedData, compressedData, digestedData and
1401 encryptedData, envelopedData types included. Scripts to check against
1402 RFC4134 examples draft and interop and consistency checks of many
1403 content types and variants.
1406 *) Add options to enc utility to support use of zlib compression BIO.
1409 *) Extend mk1mf to support importing of options and assembly language
1410 files from Configure script, currently only included in VC-WIN32.
1411 The assembly language rules can now optionally generate the source
1412 files from the associated perl scripts.
1415 *) Implement remaining functionality needed to support GOST ciphersuites.
1416 Interop testing has been performed using CryptoPro implementations.
1417 [Victor B. Wagner <vitus@cryptocom.ru>]
1419 *) s390x assembler pack.
1422 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1426 *) Implement Opaque PRF Input TLS extension as specified in
1427 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1428 official specification yet and no extension type assignment by
1429 IANA exists, this extension (for now) will have to be explicitly
1430 enabled when building OpenSSL by providing the extension number
1431 to use. For example, specify an option
1433 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1435 to the "config" or "Configure" script to enable the extension,
1436 assuming extension number 0x9527 (which is a completely arbitrary
1437 and unofficial assignment based on the MD5 hash of the Internet
1438 Draft). Note that by doing so, you potentially lose
1439 interoperability with other TLS implementations since these might
1440 be using the same extension number for other purposes.
1442 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1443 opaque PRF input value to use in the handshake. This will create
1444 an interal copy of the length-'len' string at 'src', and will
1445 return non-zero for success.
1447 To get more control and flexibility, provide a callback function
1450 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1451 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1455 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1458 Callback function 'cb' will be called in handshakes, and is
1459 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1460 Argument 'arg' is for application purposes (the value as given to
1461 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1462 be provided to the callback function). The callback function
1463 has to return non-zero to report success: usually 1 to use opaque
1464 PRF input just if possible, or 2 to enforce use of the opaque PRF
1465 input. In the latter case, the library will abort the handshake
1466 if opaque PRF input is not successfully negotiated.
1468 Arguments 'peerinput' and 'len' given to the callback function
1469 will always be NULL and 0 in the case of a client. A server will
1470 see the client's opaque PRF input through these variables if
1471 available (NULL and 0 otherwise). Note that if the server
1472 provides an opaque PRF input, the length must be the same as the
1473 length of the client's opaque PRF input.
1475 Note that the callback function will only be called when creating
1476 a new session (session resumption can resume whatever was
1477 previously negotiated), and will not be called in SSL 2.0
1478 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1479 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1480 for applications that need to enforce opaque PRF input.
1484 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1487 [Victor B. Wagner <vitus@cryptocom.ru>]
1489 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1490 RFC4507bis. The encrypted ticket format is an encrypted encoded
1491 SSL_SESSION structure, that way new session features are automatically
1494 If a client application caches session in an SSL_SESSION structure
1495 support is transparent because tickets are now stored in the encoded
1498 The SSL_CTX structure automatically generates keys for ticket
1499 protection in servers so again support should be possible
1500 with no application modification.
1502 If a client or server wishes to disable RFC4507 support then the option
1503 SSL_OP_NO_TICKET can be set.
1505 Add a TLS extension debugging callback to allow the contents of any client
1506 or server extensions to be examined.
1508 This work was sponsored by Google.
1511 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1512 OpenSSL should now compile cleanly on gcc 4.2
1513 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1515 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1516 support including streaming MAC support: this is required for GOST
1517 ciphersuite support.
1518 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1520 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1521 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1522 to output in BER and PEM format.
1525 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1526 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1527 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1528 ENGINE support for HMAC keys which are unextractable. New -mac and
1529 -macopt options to dgst utility.
1532 *) New option -sigopt to dgst utility. Update dgst to use
1533 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1534 alternative signing paramaters such as X9.31 or PSS in the dgst
1538 *) Change ssl_cipher_apply_rule(), the internal function that does
1539 the work each time a ciphersuite string requests enabling
1540 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1541 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1542 the order of disabled ciphersuites such that those ciphersuites
1543 that most recently went from enabled to disabled not only stay
1544 in order with respect to each other, but also have higher priority
1545 than other disabled ciphersuites the next time ciphersuites are
1548 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1549 the same ciphersuites as with "HIGH" alone, but in a specific
1550 order where the PSK ciphersuites come first (since they are the
1551 most recently disabled ciphersuites when "HIGH" is parsed).
1553 Also, change ssl_create_cipher_list() (using this new
1554 funcionality) such that between otherwise identical
1555 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1559 *) Change ssl_create_cipher_list() so that it automatically
1560 arranges the ciphersuites in reasonable order before starting
1561 to process the rule string. Thus, the definition for "DEFAULT"
1562 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1563 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1564 This makes it much easier to arrive at a reasonable default order
1565 in applications for which anonymous ciphers are OK (meaning
1566 that you can't actually use DEFAULT).
1567 [Bodo Moeller; suggested by Victor Duchovni]
1569 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1570 processing) into multiple integers instead of setting
1571 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1572 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1573 (These masks as well as the individual bit definitions are hidden
1574 away into the non-exported interface ssl/ssl_locl.h, so this
1575 change to the definition of the SSL_CIPHER structure shouldn't
1576 affect applications.) This give us more bits for each of these
1577 categories, so there is no longer a need to coagulate AES128 and
1578 AES256 into a single algorithm bit, and to coagulate Camellia128
1579 and Camellia256 into a single algorithm bit, which has led to all
1582 Thus, among other things, the kludge introduced in 0.9.7m and
1583 0.9.8e for masking out AES256 independently of AES128 or masking
1584 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1586 With the change, we also introduce new ciphersuite aliases that
1587 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1591 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1592 Use the leftmost N bytes of the signature input if the input is
1593 larger than the prime q (with N being the size in bytes of q).
1596 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1597 it yet and it is largely untested.
1600 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1603 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1604 some compilers (gcc 4.2 and later) reject their use. Safestack is
1605 reimplemented. Update ASN1 to avoid use of legacy functions.
1608 *) Win32/64 targets are linked with Winsock2.
1611 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1612 to external functions. This can be used to increase CRL handling
1613 efficiency especially when CRLs are very large by (for example) storing
1614 the CRL revoked certificates in a database.
1617 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1618 new CRLs added to a directory can be used. New command line option
1619 -verify_return_error to s_client and s_server. This causes real errors
1620 to be returned by the verify callback instead of carrying on no matter
1621 what. This reflects the way a "real world" verify callback would behave.
1624 *) GOST engine, supporting several GOST algorithms and public key formats.
1625 Kindly donated by Cryptocom.
1628 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1629 partitioned by DP are handled but no indirect CRL or reason partitioning
1630 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1631 selected via a scoring technique which handles IDP and AKID in CRLs.
1634 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1635 will ultimately be used for all verify operations: this will remove the
1636 X509_STORE dependency on certificate verification and allow alternative
1637 lookup methods. X509_STORE based implementations of these two callbacks.
1640 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1641 Modify get_crl() to find a valid (unexpired) CRL if possible.
1644 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1645 this would be called X509_CRL_cmp() but that name is already used by
1646 a function that just compares CRL issuer names. Cache several CRL
1647 extensions in X509_CRL structure and cache CRLDP in X509.
1650 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1651 this maps equivalent X509_NAME structures into a consistent structure.
1652 Name comparison can then be performed rapidly using memcmp().
1655 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1659 *) Allow digests to supply their own micalg string for S/MIME type using
1660 the ctrl EVP_MD_CTRL_MICALG.
1663 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1664 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1665 ctrl. It can then customise the structure before and/or after signing
1669 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1670 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1671 to free up any added signature OIDs.
1674 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1675 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1676 digest and cipher tables. New options added to openssl utility:
1677 list-message-digest-algorithms and list-cipher-algorithms.
1680 *) Change the array representation of binary polynomials: the list
1681 of degrees of non-zero coefficients is now terminated with -1.
1682 Previously it was terminated with 0, which was also part of the
1683 value; thus, the array representation was not applicable to
1684 polynomials where t^0 has coefficient zero. This change makes
1685 the array representation useful in a more general context.
1688 *) Various modifications and fixes to SSL/TLS cipher string
1689 handling. For ECC, the code now distinguishes between fixed ECDH
1690 with RSA certificates on the one hand and with ECDSA certificates
1691 on the other hand, since these are separate ciphersuites. The
1692 unused code for Fortezza ciphersuites has been removed.
1694 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1695 (not "ECDHE"). For consistency with the code for DH
1696 certificates, use of ECDH certificates is now considered ECDH
1697 authentication, not RSA or ECDSA authentication (the latter is
1698 merely the CA's signing algorithm and not actively used in the
1701 The temporary ciphersuite alias "ECCdraft" is no longer
1702 available, and ECC ciphersuites are no longer excluded from "ALL"
1703 and "DEFAULT". The following aliases now exist for RFC 4492
1704 ciphersuites, most of these by analogy with the DH case:
1706 kECDHr - ECDH cert, signed with RSA
1707 kECDHe - ECDH cert, signed with ECDSA
1708 kECDH - ECDH cert (signed with either RSA or ECDSA)
1709 kEECDH - ephemeral ECDH
1710 ECDH - ECDH cert or ephemeral ECDH
1716 AECDH - anonymous ECDH
1717 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1721 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1722 Use correct micalg parameters depending on digest(s) in signed message.
1725 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1726 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1729 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1730 an engine to register a method. Add ENGINE lookups for methods and
1731 functional reference processing.
1734 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1735 EVP_{Sign,Verify}* which allow an application to customise the signature
1739 *) New -resign option to smime utility. This adds one or more signers
1740 to an existing PKCS#7 signedData structure. Also -md option to use an
1741 alternative message digest algorithm for signing.
1744 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1745 create PKCS7 structures containing multiple signers. Update smime
1746 application to support multiple signers.
1749 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1753 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1754 Reorganize PBE internals to lookup from a static table using NIDs,
1755 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1756 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1757 PRF which will be automatically used with PBES2.
1760 *) Replace the algorithm specific calls to generate keys in "req" with the
1764 *) Update PKCS#7 enveloped data routines to use new API. This is now
1765 supported by any public key method supporting the encrypt operation. A
1766 ctrl is added to allow the public key algorithm to examine or modify
1767 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1771 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1772 a default digest type to use. In most cases this will be SHA1 but some
1773 algorithms (such as GOST) need to specify an alternative digest. The
1774 return value indicates how strong the prefernce is 1 means optional and
1775 2 is mandatory (that is it is the only supported type). Modify
1776 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1777 use the default md. Update openssl utilities to use the default digest
1778 type for signing if it is not explicitly indicated.
1781 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1782 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1783 signing method from the key type. This effectively removes the link
1784 between digests and public key types.
1787 *) Add an OID cross reference table and utility functions. Its purpose is to
1788 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1789 rsaEncryption. This will allow some of the algorithm specific hackery
1790 needed to use the correct OID to be removed.
1793 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1794 structures for PKCS7_sign(). They are now set up by the relevant public
1798 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1801 *) Add support for key derivation (agreement) in the API, DH method and
1805 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1806 public and private key formats. As a side effect these add additional
1807 command line functionality not previously available: DSA signatures can be
1808 generated and verified using pkeyutl and DH key support and generation in
1813 [Oliver Tappe <zooey@hirschkaefer.de>]
1815 *) New make target "install_html_docs" installs HTML renditions of the
1817 [Oliver Tappe <zooey@hirschkaefer.de>]
1819 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1820 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1821 support key and parameter generation and add initial key generation
1822 functionality for RSA.
1825 *) Add functions for main EVP_PKEY_method operations. The undocumented
1826 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1827 EVP_PKEY_{encrypt,decrypt}_old.
1830 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1831 key API, doesn't do much yet.
1834 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1835 public key algorithms. New option to openssl utility:
1836 "list-public-key-algorithms" to print out info.
1839 *) Implement the Supported Elliptic Curves Extension for
1840 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1843 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1844 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1847 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1848 utilities such as rsa, dsa, dsaparam etc except they process any key
1852 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1853 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1854 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1858 *) Initial support for pluggable public key ASN1.
1859 De-spaghettify the public key ASN1 handling. Move public and private
1860 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1861 algorithm specific handling to a single module within the relevant
1862 algorithm directory. Add functions to allow (near) opaque processing
1863 of public and private key structures.
1866 *) Implement the Supported Point Formats Extension for
1867 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1870 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1871 for the psk identity [hint] and the psk callback functions to the
1872 SSL_SESSION, SSL and SSL_CTX structure.
1875 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1879 SSL_CTX_use_psk_identity_hint
1880 SSL_get_psk_identity_hint
1881 SSL_get_psk_identity
1882 SSL_use_psk_identity_hint
1884 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1886 *) Add RFC 3161 compliant time stamp request creation, response generation
1887 and response verification functionality.
1888 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1890 *) Add initial support for TLS extensions, specifically for the server_name
1891 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1892 have new members for a host name. The SSL data structure has an
1893 additional member SSL_CTX *initial_ctx so that new sessions can be
1894 stored in that context to allow for session resumption, even after the
1895 SSL has been switched to a new SSL_CTX in reaction to a client's
1896 server_name extension.
1898 New functions (subject to change):
1900 SSL_get_servername()
1901 SSL_get_servername_type()
1904 New CTRL codes and macros (subject to change):
1906 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1907 - SSL_CTX_set_tlsext_servername_callback()
1908 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1909 - SSL_CTX_set_tlsext_servername_arg()
1910 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1912 openssl s_client has a new '-servername ...' option.
1914 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1915 '-key2 ...', '-servername_fatal' (subject to change). This allows
1916 testing the HostName extension for a specific single host name ('-cert'
1917 and '-key' remain fallbacks for handshakes without HostName
1918 negotiation). If the unrecogninzed_name alert has to be sent, this by
1919 default is a warning; it becomes fatal with the '-servername_fatal'
1922 [Peter Sylvester, Remy Allais, Christophe Renou]
1924 *) Whirlpool hash implementation is added.
1927 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1928 bn(64,32). Because of instruction set limitations it doesn't have
1929 any negative impact on performance. This was done mostly in order
1930 to make it possible to share assembler modules, such as bn_mul_mont
1931 implementations, between 32- and 64-bit builds without hassle.
1934 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1935 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1939 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1940 dedicated Montgomery multiplication procedure, is introduced.
1941 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1942 "64-bit" performance on certain 32-bit targets.
1945 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1946 in SSL structures. New SSL ctrl to set maximum send fragment size.
1947 Save memory by seeting the I/O buffer sizes dynamically instead of
1948 using the maximum available value.
1951 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1952 in addition to the text details.
1955 *) Very, very preliminary EXPERIMENTAL support for printing of general
1956 ASN1 structures. This currently produces rather ugly output and doesn't
1957 handle several customised structures at all.
1960 *) Integrated support for PVK file format and some related formats such
1961 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1962 these in the 'rsa' and 'dsa' utilities.
1965 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1968 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1969 place for the (very old) "NETSCAPE" format certificates which are now
1970 handled using new ASN1 code equivalents.
1973 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1974 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1975 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1978 *) Modify CRL distribution points extension code to print out previously
1979 unsupported fields. Enhance extension setting code to allow setting of
1983 *) Add print and set support for Issuing Distribution Point CRL extension.
1986 *) Change 'Configure' script to enable Camellia by default.
1989 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1991 *) When rejecting SSL/TLS records due to an incorrect version number, never
1992 update s->server with a new major version number. As of
1993 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1994 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1995 the previous behavior could result in a read attempt at NULL when
1996 receiving specific incorrect SSL/TLS records once record payload
1997 protection is active. (CVE-2010-0740)
1998 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2000 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2001 could be crashed if the relevant tables were not present (e.g. chrooted).
2002 [Tomas Hoger <thoger@redhat.com>]
2004 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2006 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2007 [Martin Olsson, Neel Mehta]
2009 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2010 accommodate for stack sorting, always a write lock!).
2013 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2014 excessive delays in the RAND_poll(): over a minute. As a workaround
2015 include a time check in the inner Heap32Next loop too.
2018 *) The code that handled flushing of data in SSL/TLS originally used the
2019 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2020 the problem outlined in PR#1949. The fix suggested there however can
2021 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2022 of Apache). So instead simplify the code to flush unconditionally.
2023 This should be fine since flushing with no data to flush is a no op.
2026 *) Handle TLS versions 2.0 and later properly and correctly use the
2027 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2028 off ancient servers have a habit of sticking around for a while...
2031 *) Modify compression code so it frees up structures without using the
2032 ex_data callbacks. This works around a problem where some applications
2033 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2034 restarting) then use compression (e.g. SSL with compression) later.
2035 This results in significant per-connection memory leaks and
2036 has caused some security issues including CVE-2008-1678 and
2040 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2041 change when encrypting or decrypting.
2044 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2045 connect and renegotiate with servers which do not support RI.
2046 Until RI is more widely deployed this option is enabled by default.
2049 *) Add "missing" ssl ctrls to clear options and mode.
2052 *) If client attempts to renegotiate and doesn't support RI respond with
2053 a no_renegotiation alert as required by RFC5746. Some renegotiating
2054 TLS clients will continue a connection gracefully when they receive
2055 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2056 waiting for a server hello which it will never receive. Now we treat a
2057 received no_renegotiation alert as a fatal error. This is because
2058 applications requesting a renegotiation might well expect it to succeed
2059 and would have no code in place to handle the server denying it so the
2060 only safe thing to do is to terminate the connection.
2063 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2064 peer supports secure renegotiation and 0 otherwise. Print out peer
2065 renegotiation support in s_client/s_server.
2068 *) Replace the highly broken and deprecated SPKAC certification method with
2069 the updated NID creation version. This should correctly handle UTF8.
2072 *) Implement RFC5746. Re-enable renegotiation but require the extension
2073 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2074 turns out to be a bad idea. It has been replaced by
2075 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2076 SSL_CTX_set_options(). This is really not recommended unless you
2077 know what you are doing.
2078 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2080 *) Fixes to stateless session resumption handling. Use initial_ctx when
2081 issuing and attempting to decrypt tickets in case it has changed during
2082 servername handling. Use a non-zero length session ID when attempting
2083 stateless session resumption: this makes it possible to determine if
2084 a resumption has occurred immediately after receiving server hello
2085 (several places in OpenSSL subtly assume this) instead of later in
2089 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2090 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2091 fixes for a few places where the return code is not checked
2093 [Julia Lawall <julia@diku.dk>]
2095 *) Add --strict-warnings option to Configure script to include devteam
2096 warnings in other configurations.
2099 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2100 makes it possible to install openssl libraries in locations which
2101 have names other than "lib", for example "/usr/lib64" which some
2103 [Steve Henson, based on patch from Jeremy Utley]
2105 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2106 X690 8.9.12 and can produce some misleading textual output of OIDs.
2107 [Steve Henson, reported by Dan Kaminsky]
2109 *) Delete MD2 from algorithm tables. This follows the recommendation in
2110 several standards that it is not used in new applications due to
2111 several cryptographic weaknesses. For binary compatibility reasons
2112 the MD2 API is still compiled in by default.
2115 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2119 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2120 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2122 [Guenter <lists@gknw.net>]
2124 *) Fix the server certificate chain building code to use X509_verify_cert(),
2125 it used to have an ad-hoc builder which was unable to cope with anything
2126 other than a simple chain.
2127 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2129 *) Don't check self signed certificate signatures in X509_verify_cert()
2130 by default (a flag can override this): it just wastes time without
2131 adding any security. As a useful side effect self signed root CAs
2132 with non-FIPS digests are now usable in FIPS mode.
2135 *) In dtls1_process_out_of_seq_message() the check if the current message
2136 is already buffered was missing. For every new message was memory
2137 allocated, allowing an attacker to perform an denial of service attack
2138 with sending out of seq handshake messages until there is no memory
2139 left. Additionally every future messege was buffered, even if the
2140 sequence number made no sense and would be part of another handshake.
2141 So only messages with sequence numbers less than 10 in advance will be
2142 buffered. (CVE-2009-1378)
2143 [Robin Seggelmann, discovered by Daniel Mentz]
2145 *) Records are buffered if they arrive with a future epoch to be
2146 processed after finishing the corresponding handshake. There is
2147 currently no limitation to this buffer allowing an attacker to perform
2148 a DOS attack with sending records with future epochs until there is no
2149 memory left. This patch adds the pqueue_size() function to detemine
2150 the size of a buffer and limits the record buffer to 100 entries.
2152 [Robin Seggelmann, discovered by Daniel Mentz]
2154 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2155 parent structure is freed. (CVE-2009-1379)
2158 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2159 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2162 [Ilya O. <vrghost@gmail.com>]
2164 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2166 *) Disable renegotiation completely - this fixes a severe security
2167 problem (CVE-2009-3555) at the cost of breaking all
2168 renegotiation. Renegotiation can be re-enabled by setting
2169 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2170 run-time. This is really not recommended unless you know what
2174 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2176 *) Don't set val to NULL when freeing up structures, it is freed up by
2177 underlying code. If sizeof(void *) > sizeof(long) this can result in
2178 zeroing past the valid field. (CVE-2009-0789)
2179 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2181 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2182 checked correctly. This would allow some invalid signed attributes to
2183 appear to verify correctly. (CVE-2009-0591)
2184 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2186 *) Reject UniversalString and BMPString types with invalid lengths. This
2187 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2188 a legal length. (CVE-2009-0590)
2191 *) Set S/MIME signing as the default purpose rather than setting it
2192 unconditionally. This allows applications to override it at the store
2196 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2197 to handle some structures.
2200 *) Improve efficiency of mem_gets: don't search whole buffer each time
2202 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2204 *) New -hex option for openssl rand.
2207 *) Print out UTF8String and NumericString when parsing ASN1.
2210 *) Support NumericString type for name components.
2213 *) Allow CC in the environment to override the automatically chosen
2214 compiler. Note that nothing is done to ensure flags work with the
2218 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2220 *) Properly check EVP_VerifyFinal() and similar return values
2222 [Ben Laurie, Bodo Moeller, Google Security Team]
2224 *) Enable TLS extensions by default.
2227 *) Allow the CHIL engine to be loaded, whether the application is
2228 multithreaded or not. (This does not release the developer from the
2229 obligation to set up the dynamic locking callbacks.)
2230 [Sander Temme <sander@temme.net>]
2232 *) Use correct exit code if there is an error in dgst command.
2233 [Steve Henson; problem pointed out by Roland Dirlewanger]
2235 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2236 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2239 *) Add experimental JPAKE support, including demo authentication in
2240 s_client and s_server.
2243 *) Set the comparison function in v3_addr_canonize().
2244 [Rob Austein <sra@hactrn.net>]
2246 *) Add support for XMPP STARTTLS in s_client.
2247 [Philip Paeps <philip@freebsd.org>]
2249 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2250 to ensure that even with this option, only ciphersuites in the
2251 server's preference list will be accepted. (Note that the option
2252 applies only when resuming a session, so the earlier behavior was
2253 just about the algorithm choice for symmetric cryptography.)
2256 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2258 *) Fix NULL pointer dereference if a DTLS server received
2259 ChangeCipherSpec as first record (CVE-2009-1386).
2262 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2263 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2266 *) The fix in 0.9.8c that supposedly got rid of unsafe
2267 double-checked locking was incomplete for RSA blinding,
2268 addressing just one layer of what turns out to have been
2269 doubly unsafe triple-checked locking.
2271 So now fix this for real by retiring the MONT_HELPER macro
2272 in crypto/rsa/rsa_eay.c.
2274 [Bodo Moeller; problem pointed out by Marius Schilder]
2276 *) Various precautionary measures:
2278 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2280 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2281 (NB: This would require knowledge of the secret session ticket key
2282 to exploit, in which case you'd be SOL either way.)
2284 - Change bn_nist.c so that it will properly handle input BIGNUMs
2285 outside the expected range.
2287 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2290 [Neel Mehta, Bodo Moeller]
2292 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2293 the load fails. Useful for distros.
2294 [Ben Laurie and the FreeBSD team]
2296 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2299 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2302 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2304 This work was sponsored by Logica.
2307 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2308 keystores. Support for SSL/TLS client authentication too.
2309 Not compiled unless enable-capieng specified to Configure.
2311 This work was sponsored by Logica.
2314 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2315 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2316 attribute creation routines such as certifcate requests and PKCS#12
2320 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2322 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2323 handshake which could lead to a cilent crash as found using the
2324 Codenomicon TLS test suite (CVE-2008-1672)
2325 [Steve Henson, Mark Cox]
2327 *) Fix double free in TLS server name extensions which could lead to
2328 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2331 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2333 Clear the error queue to ensure that error entries left from
2334 older function calls do not interfere with the correct operation.
2335 [Lutz Jaenicke, Erik de Castro Lopo]
2337 *) Remove root CA certificates of commercial CAs:
2339 The OpenSSL project does not recommend any specific CA and does not
2340 have any policy with respect to including or excluding any CA.
2341 Therefore it does not make any sense to ship an arbitrary selection
2342 of root CA certificates with the OpenSSL software.
2345 *) RSA OAEP patches to fix two separate invalid memory reads.
2346 The first one involves inputs when 'lzero' is greater than
2347 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2348 before the beginning of from). The second one involves inputs where
2349 the 'db' section contains nothing but zeroes (there is a one-byte
2350 invalid read after the end of 'db').
2351 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2353 *) Partial backport from 0.9.9-dev:
2355 Introduce bn_mul_mont (dedicated Montgomery multiplication
2356 procedure) as a candidate for BIGNUM assembler implementation.
2357 While 0.9.9-dev uses assembler for various architectures, only
2358 x86_64 is available by default here in the 0.9.8 branch, and
2359 32-bit x86 is available through a compile-time setting.
2361 To try the 32-bit x86 assembler implementation, use Configure
2362 option "enable-montasm" (which exists only for this backport).
2364 As "enable-montasm" for 32-bit x86 disclaims code stability
2365 anyway, in this constellation we activate additional code
2366 backported from 0.9.9-dev for further performance improvements,
2367 namely BN_from_montgomery_word. (To enable this otherwise,
2368 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2370 [Andy Polyakov (backport partially by Bodo Moeller)]
2372 *) Add TLS session ticket callback. This allows an application to set
2373 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2374 values. This is useful for key rollover for example where several key
2375 sets may exist with different names.
2378 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2379 This was broken until now in 0.9.8 releases, such that the only way
2380 a registered ENGINE could be used (assuming it initialises
2381 successfully on the host) was to explicitly set it as the default
2382 for the relevant algorithms. This is in contradiction with 0.9.7
2383 behaviour and the documentation. With this fix, when an ENGINE is
2384 registered into a given algorithm's table of implementations, the
2385 'uptodate' flag is reset so that auto-discovery will be used next
2386 time a new context for that algorithm attempts to select an
2388 [Ian Lister (tweaked by Geoff Thorpe)]
2390 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2391 implemention in the following ways:
2393 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2396 Lack of BER streaming support means one pass streaming processing is
2397 only supported if data is detached: setting the streaming flag is
2398 ignored for embedded content.
2400 CMS support is disabled by default and must be explicitly enabled
2401 with the enable-cms configuration option.
2404 *) Update the GMP engine glue to do direct copies between BIGNUM and
2405 mpz_t when openssl and GMP use the same limb size. Otherwise the
2406 existing "conversion via a text string export" trick is still used.
2407 [Paul Sheer <paulsheer@gmail.com>]
2409 *) Zlib compression BIO. This is a filter BIO which compressed and
2410 uncompresses any data passed through it.
2413 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2414 RFC3394 compatible AES key wrapping.
2417 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2418 sets string data without copying. X509_ALGOR_set0() and
2419 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2420 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2421 from an X509_ATTRIBUTE structure optionally checking it occurs only
2422 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2426 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2427 to get the expected BN_FLG_CONSTTIME behavior.
2428 [Bodo Moeller (Google)]
2432 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2433 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2434 - added some more tests to do_tests.pl
2435 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2436 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2437 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2438 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2439 - various changes to netware.pl to enable gcc-cross builds on Win32
2441 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2442 - various changes to fix missing prototype warnings
2443 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2444 - added AES, WHIRLPOOL and CPUID assembler code to build files
2445 - added missing AES assembler make rules to mk1mf.pl
2446 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2447 [Guenter Knauf <eflash@gmx.net>]
2449 *) Implement certificate status request TLS extension defined in RFC3546.
2450 A client can set the appropriate parameters and receive the encoded
2451 OCSP response via a callback. A server can query the supplied parameters
2452 and set the encoded OCSP response in the callback. Add simplified examples
2453 to s_client and s_server.
2456 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2458 *) Fix various bugs:
2459 + Binary incompatibility of ssl_ctx_st structure
2460 + DTLS interoperation with non-compliant servers
2461 + Don't call get_session_cb() without proposed session
2462 + Fix ia64 assembler code
2463 [Andy Polyakov, Steve Henson]
2465 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2467 *) DTLS Handshake overhaul. There were longstanding issues with
2468 OpenSSL DTLS implementation, which were making it impossible for
2469 RFC 4347 compliant client to communicate with OpenSSL server.
2470 Unfortunately just fixing these incompatibilities would "cut off"
2471 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2472 server keeps tolerating non RFC compliant syntax. The opposite is
2473 not true, 0.9.8f client can not communicate with earlier server.
2474 This update even addresses CVE-2007-4995.
2477 *) Changes to avoid need for function casts in OpenSSL: some compilers
2478 (gcc 4.2 and later) reject their use.
2479 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2482 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2483 RFC4507bis. The encrypted ticket format is an encrypted encoded
2484 SSL_SESSION structure, that way new session features are automatically
2487 If a client application caches session in an SSL_SESSION structure
2488 support is transparent because tickets are now stored in the encoded
2491 The SSL_CTX structure automatically generates keys for ticket
2492 protection in servers so again support should be possible
2493 with no application modification.
2495 If a client or server wishes to disable RFC4507 support then the option
2496 SSL_OP_NO_TICKET can be set.
2498 Add a TLS extension debugging callback to allow the contents of any client
2499 or server extensions to be examined.
2501 This work was sponsored by Google.
2504 *) Add initial support for TLS extensions, specifically for the server_name
2505 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2506 have new members for a host name. The SSL data structure has an
2507 additional member SSL_CTX *initial_ctx so that new sessions can be
2508 stored in that context to allow for session resumption, even after the
2509 SSL has been switched to a new SSL_CTX in reaction to a client's
2510 server_name extension.
2512 New functions (subject to change):
2514 SSL_get_servername()
2515 SSL_get_servername_type()
2518 New CTRL codes and macros (subject to change):
2520 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2521 - SSL_CTX_set_tlsext_servername_callback()
2522 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2523 - SSL_CTX_set_tlsext_servername_arg()
2524 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2526 openssl s_client has a new '-servername ...' option.
2528 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2529 '-key2 ...', '-servername_fatal' (subject to change). This allows
2530 testing the HostName extension for a specific single host name ('-cert'
2531 and '-key' remain fallbacks for handshakes without HostName
2532 negotiation). If the unrecogninzed_name alert has to be sent, this by
2533 default is a warning; it becomes fatal with the '-servername_fatal'
2536 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2538 *) Add AES and SSE2 assembly language support to VC++ build.
2541 *) Mitigate attack on final subtraction in Montgomery reduction.
2544 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2545 (which previously caused an internal error).
2548 *) Squeeze another 10% out of IGE mode when in != out.
2551 *) AES IGE mode speedup.
2552 [Dean Gaudet (Google)]
2554 *) Add the Korean symmetric 128-bit cipher SEED (see
2555 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2556 add SEED ciphersuites from RFC 4162:
2558 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2559 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2560 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2561 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2563 To minimize changes between patchlevels in the OpenSSL 0.9.8
2564 series, SEED remains excluded from compilation unless OpenSSL
2565 is configured with 'enable-seed'.
2566 [KISA, Bodo Moeller]
2568 *) Mitigate branch prediction attacks, which can be practical if a
2569 single processor is shared, allowing a spy process to extract
2570 information. For detailed background information, see
2571 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2572 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2573 and Necessary Software Countermeasures"). The core of the change
2574 are new versions BN_div_no_branch() and
2575 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2576 respectively, which are slower, but avoid the security-relevant
2577 conditional branches. These are automatically called by BN_div()
2578 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2579 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2580 remove a conditional branch.
2582 BN_FLG_CONSTTIME is the new name for the previous
2583 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2584 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2585 in the exponent causes BN_mod_exp_mont() to use the alternative
2586 implementation in BN_mod_exp_mont_consttime().) The old name
2587 remains as a deprecated alias.
2589 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2590 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2591 constant-time implementations for more than just exponentiation.
2592 Here too the old name is kept as a deprecated alias.
2594 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2595 the BN_BLINDING structure gets an independent copy of the
2596 modulus. This means that the previous "BIGNUM *m" argument to
2597 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2598 essentially becomes "const BIGNUM *m", although we can't actually
2599 change this in the header file before 0.9.9. It allows
2600 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2601 enable BN_FLG_CONSTTIME.
2603 [Matthew D Wood (Intel Corp)]
2605 *) In the SSL/TLS server implementation, be strict about session ID
2606 context matching (which matters if an application uses a single
2607 external cache for different purposes). Previously,
2608 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2609 set. This did ensure strict client verification, but meant that,
2610 with applications using a single external cache for quite
2611 different requirements, clients could circumvent ciphersuite
2612 restrictions for a given session ID context by starting a session
2613 in a different context.
2616 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2617 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2618 authentication-only ciphersuites.
2621 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2622 not complete and could lead to a possible single byte overflow
2623 (CVE-2007-5135) [Ben Laurie]
2625 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2627 *) Since AES128 and AES256 (and similarly Camellia128 and
2628 Camellia256) share a single mask bit in the logic of
2629 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2630 kludge to work properly if AES128 is available and AES256 isn't
2631 (or if Camellia128 is available and Camellia256 isn't).
2634 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2635 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2636 When a point or a seed is encoded in a BIT STRING, we need to
2637 prevent the removal of trailing zero bits to get the proper DER
2638 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2639 of a NamedBitList, for which trailing 0 bits need to be removed.)
2642 *) Have SSL/TLS server implementation tolerate "mismatched" record
2643 protocol version while receiving ClientHello even if the
2644 ClientHello is fragmented. (The server can't insist on the
2645 particular protocol version it has chosen before the ServerHello
2646 message has informed the client about his choice.)
2649 *) Add RFC 3779 support.
2650 [Rob Austein for ARIN, Ben Laurie]
2652 *) Load error codes if they are not already present instead of using a
2653 static variable. This allows them to be cleanly unloaded and reloaded.
2654 Improve header file function name parsing.
2657 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2658 or CAPABILITY handshake as required by RFCs.
2661 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2663 *) Introduce limits to prevent malicious keys being able to
2664 cause a denial of service. (CVE-2006-2940)
2665 [Steve Henson, Bodo Moeller]
2667 *) Fix ASN.1 parsing of certain invalid structures that can result
2668 in a denial of service. (CVE-2006-2937) [Steve Henson]
2670 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2671 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2673 *) Fix SSL client code which could crash if connecting to a
2674 malicious SSLv2 server. (CVE-2006-4343)
2675 [Tavis Ormandy and Will Drewry, Google Security Team]
2677 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2678 match only those. Before that, "AES256-SHA" would be interpreted
2679 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2680 the same strength classification in 0.9.7h) as we currently only
2681 have a single AES bit in the ciphersuite description bitmap.
2682 That change, however, also applied to ciphersuite strings such as
2683 "RC4-MD5" that intentionally matched multiple ciphersuites --
2684 namely, SSL 2.0 ciphersuites in addition to the more common ones
2685 from SSL 3.0/TLS 1.0.
2687 So we change the selection algorithm again: Naming an explicit
2688 ciphersuite selects this one ciphersuite, and any other similar
2689 ciphersuite (same bitmap) from *other* protocol versions.
2690 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2691 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2693 Since SSL 2.0 does not have any ciphersuites for which the
2694 128/256 bit distinction would be relevant, this works for now.
2695 The proper fix will be to use different bits for AES128 and
2696 AES256, which would have avoided the problems from the beginning;
2697 however, bits are scarce, so we can only do this in a new release
2698 (not just a patchlevel) when we can change the SSL_CIPHER
2699 definition to split the single 'unsigned long mask' bitmap into
2700 multiple values to extend the available space.
2704 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2706 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2707 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2709 *) Add AES IGE and biIGE modes.
2712 *) Change the Unix randomness entropy gathering to use poll() when
2713 possible instead of select(), since the latter has some
2714 undesirable limitations.
2715 [Darryl Miles via Richard Levitte and Bodo Moeller]
2717 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2718 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2719 cannot be implicitly activated as part of, e.g., the "AES" alias.
2720 However, please upgrade to OpenSSL 0.9.9[-dev] for
2721 non-experimental use of the ECC ciphersuites to get TLS extension
2722 support, which is required for curve and point format negotiation
2723 to avoid potential handshake problems.
2726 *) Disable rogue ciphersuites:
2728 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2729 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2730 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2732 The latter two were purportedly from
2733 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2736 Also deactivate the remaining ciphersuites from
2737 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2738 unofficial, and the ID has long expired.
2741 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2742 dual-core machines) and other potential thread-safety issues.
2745 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2746 versions), which is now available for royalty-free use
2747 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2748 Also, add Camellia TLS ciphersuites from RFC 4132.
2750 To minimize changes between patchlevels in the OpenSSL 0.9.8
2751 series, Camellia remains excluded from compilation unless OpenSSL
2752 is configured with 'enable-camellia'.
2755 *) Disable the padding bug check when compression is in use. The padding
2756 bug check assumes the first packet is of even length, this is not
2757 necessarily true if compresssion is enabled and can result in false
2758 positives causing handshake failure. The actual bug test is ancient
2759 code so it is hoped that implementations will either have fixed it by
2760 now or any which still have the bug do not support compression.
2763 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2765 *) When applying a cipher rule check to see if string match is an explicit
2766 cipher suite and only match that one cipher suite if it is.
2769 *) Link in manifests for VC++ if needed.
2770 [Austin Ziegler <halostatue@gmail.com>]
2772 *) Update support for ECC-based TLS ciphersuites according to
2773 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2774 TLS extensions, which are supported starting with the 0.9.9
2775 branch, not in the OpenSSL 0.9.8 branch).
2778 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2779 opaque EVP_CIPHER_CTX handling.
2782 *) Fixes and enhancements to zlib compression code. We now only use
2783 "zlib1.dll" and use the default __cdecl calling convention on Win32
2784 to conform with the standards mentioned here:
2785 http://www.zlib.net/DLL_FAQ.txt
2786 Static zlib linking now works on Windows and the new --with-zlib-include
2787 --with-zlib-lib options to Configure can be used to supply the location
2788 of the headers and library. Gracefully handle case where zlib library
2792 *) Several fixes and enhancements to the OID generation code. The old code
2793 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2794 handle numbers larger than ULONG_MAX, truncated printing and had a
2795 non standard OBJ_obj2txt() behaviour.
2798 *) Add support for building of engines under engine/ as shared libraries
2799 under VC++ build system.
2802 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2803 Hopefully, we will not see any false combination of paths any more.
2806 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2808 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2809 (part of SSL_OP_ALL). This option used to disable the
2810 countermeasure against man-in-the-middle protocol-version
2811 rollback in the SSL 2.0 server implementation, which is a bad
2812 idea. (CVE-2005-2969)
2814 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2815 for Information Security, National Institute of Advanced Industrial
2816 Science and Technology [AIST], Japan)]
2818 *) Add two function to clear and return the verify parameter flags.
2821 *) Keep cipherlists sorted in the source instead of sorting them at
2822 runtime, thus removing the need for a lock.
2825 *) Avoid some small subgroup attacks in Diffie-Hellman.
2826 [Nick Mathewson and Ben Laurie]
2828 *) Add functions for well-known primes.
2831 *) Extended Windows CE support.
2832 [Satoshi Nakamura and Andy Polyakov]
2834 *) Initialize SSL_METHOD structures at compile time instead of during
2835 runtime, thus removing the need for a lock.
2838 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2839 attempting to decrypt each encrypted key in turn. Add support to
2843 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2845 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2848 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2851 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2852 key into the same file any more.
2855 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2858 *) Add -utf8 command line and config file option to 'ca'.
2859 [Stefan <stf@udoma.org]
2861 *) Removed the macro des_crypt(), as it seems to conflict with some
2862 libraries. Use DES_crypt().
2865 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2866 involves renaming the source and generated shared-libs for
2867 both. The engines will accept the corrected or legacy ids
2868 ('ncipher' and '4758_cca' respectively) when binding. NB,
2869 this only applies when building 'shared'.
2870 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2872 *) Add attribute functions to EVP_PKEY structure. Modify
2873 PKCS12_create() to recognize a CSP name attribute and
2874 use it. Make -CSP option work again in pkcs12 utility.
2877 *) Add new functionality to the bn blinding code:
2878 - automatic re-creation of the BN_BLINDING parameters after
2879 a fixed number of uses (currently 32)
2880 - add new function for parameter creation
2881 - introduce flags to control the update behaviour of the
2882 BN_BLINDING parameters
2883 - hide BN_BLINDING structure
2884 Add a second BN_BLINDING slot to the RSA structure to improve
2885 performance when a single RSA object is shared among several
2889 *) Add support for DTLS.
2890 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2892 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2893 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2896 *) Remove buggy and incompletet DH cert support from
2897 ssl/ssl_rsa.c and ssl/s3_both.c
2900 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2901 the apps/openssl applications.
2904 *) Compile clean with "-Wall -Wmissing-prototypes
2905 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2906 DEBUG_SAFESTACK must also be set.
2909 *) Change ./Configure so that certain algorithms can be disabled by default.
2910 The new counterpiece to "no-xxx" is "enable-xxx".
2912 The patented RC5 and MDC2 algorithms will now be disabled unless
2913 "enable-rc5" and "enable-mdc2", respectively, are specified.
2915 (IDEA remains enabled despite being patented. This is because IDEA
2916 is frequently required for interoperability, and there is no license
2917 fee for non-commercial use. As before, "no-idea" can be used to
2918 avoid this algorithm.)
2922 *) Add processing of proxy certificates (see RFC 3820). This work was
2923 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2924 EGEE (Enabling Grids for E-science in Europe).
2927 *) RC4 performance overhaul on modern architectures/implementations, such
2928 as Intel P4, IA-64 and AMD64.
2931 *) New utility extract-section.pl. This can be used specify an alternative
2932 section number in a pod file instead of having to treat each file as
2933 a separate case in Makefile. This can be done by adding two lines to the
2936 =for comment openssl_section:XXX
2938 The blank line is mandatory.
2942 *) New arguments -certform, -keyform and -pass for s_client and s_server
2943 to allow alternative format key and certificate files and passphrase
2947 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2948 update associated structures and add various utility functions.
2950 Add new policy related verify parameters, include policy checking in
2951 standard verify code. Enhance 'smime' application with extra parameters
2952 to support policy checking and print out.
2955 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2956 Nehemiah processors. These extensions support AES encryption in hardware
2957 as well as RNG (though RNG support is currently disabled).
2958 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2960 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2963 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2964 [Andy Polyakov and a number of other people]
2966 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2967 implementation contributed by IBM.
2968 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2970 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2971 exponent rather than 'unsigned long'. There is a corresponding change to
2972 the new 'rsa_keygen' element of the RSA_METHOD structure.
2973 [Jelte Jansen, Geoff Thorpe]
2975 *) Functionality for creating the initial serial number file is now
2976 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2978 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2979 number file to 1, which is bound to cause problems. To avoid
2980 the problems while respecting compatibility between different 0.9.7
2981 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2982 CA.pl for serial number initialization. With the new release 0.9.8,
2983 we can fix the problem directly in the 'ca' utility.)
2986 *) Reduced header interdepencies by declaring more opaque objects in
2987 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2988 give fewer recursive includes, which could break lazy source code - so
2989 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2990 developers should define this symbol when building and using openssl to
2991 ensure they track the recommended behaviour, interfaces, [etc], but
2992 backwards-compatible behaviour prevails when this isn't defined.
2995 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2998 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2999 This will generate a random key of the appropriate length based on the
3000 cipher context. The EVP_CIPHER can provide its own random key generation
3001 routine to support keys of a specific form. This is used in the des and
3002 3des routines to generate a key of the correct parity. Update S/MIME
3003 code to use new functions and hence generate correct parity DES keys.
3004 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3005 valid (weak or incorrect parity).
3008 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3009 as looking them up. This is useful when the verified structure may contain
3010 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3011 present unless the new PKCS7_NO_CRL flag is asserted.
3014 *) Extend ASN1 oid configuration module. It now additionally accepts the
3017 shortName = some long name, 1.2.3.4
3020 *) Reimplemented the BN_CTX implementation. There is now no more static
3021 limitation on the number of variables it can handle nor the depth of the
3022 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3023 information can now expand as required, and rather than having a single
3024 static array of bignums, BN_CTX now uses a linked-list of such arrays
3025 allowing it to expand on demand whilst maintaining the usefulness of
3026 BN_CTX's "bundling".
3029 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3030 to allow all RSA operations to function using a single BN_CTX.
3033 *) Preliminary support for certificate policy evaluation and checking. This
3034 is initially intended to pass the tests outlined in "Conformance Testing
3035 of Relying Party Client Certificate Path Processing Logic" v1.07.
3038 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3039 remained unused and not that useful. A variety of other little bignum
3040 tweaks and fixes have also been made continuing on from the audit (see
3044 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3045 associated ASN1, EVP and SSL functions and old ASN1 macros.
3048 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3049 and this should never fail. So the return value from the use of
3050 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3051 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3054 *) BN_CTX_get() should return zero-valued bignums, providing the same
3055 initialised value as BN_new().
3056 [Geoff Thorpe, suggested by Ulf Möller]
3058 *) Support for inhibitAnyPolicy certificate extension.
3061 *) An audit of the BIGNUM code is underway, for which debugging code is
3062 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3063 is considered valid when processing BIGNUMs, and causes execution to
3064 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3065 further steps are taken to deliberately pollute unused data in BIGNUM
3066 structures to try and expose faulty code further on. For now, openssl will
3067 (in its default mode of operation) continue to tolerate the inconsistent
3068 forms that it has tolerated in the past, but authors and packagers should
3069 consider trying openssl and their own applications when compiled with
3070 these debugging symbols defined. It will help highlight potential bugs in
3071 their own code, and will improve the test coverage for OpenSSL itself. At
3072 some point, these tighter rules will become openssl's default to improve
3073 maintainability, though the assert()s and other overheads will remain only
3074 in debugging configurations. See bn.h for more details.
3075 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3077 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3078 that can only be obtained through BN_CTX_new() (which implicitly
3079 initialises it). The presence of this function only made it possible
3080 to overwrite an existing structure (and cause memory leaks).
3083 *) Because of the callback-based approach for implementing LHASH as a
3084 template type, lh_insert() adds opaque objects to hash-tables and
3085 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3086 to clean up those corresponding objects before destroying the hash table
3087 (and losing the object pointers). So some over-zealous constifications in
3088 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3089 objects as "const" and the lh_doall[_arg] callback wrappers are not
3090 prototyped to have "const" restrictions on the object pointers they are
3091 given (and so aren't required to cast them away any more).
3094 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3095 (speed) prefers to use its own implementation. The two implementations
3096 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3097 its object type properly exposed (MS_TM) instead of casting to/from "char
3098 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3099 aren't necessarily the greatest nomenclatures - but this is what was used
3100 internally to the implementation so I've used that for now.
3103 *) Ensure that deprecated functions do not get compiled when
3104 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3105 the self-tests were still using deprecated key-generation functions so
3106 these have been updated also.
3109 *) Reorganise PKCS#7 code to separate the digest location functionality
3110 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3111 New function PKCS7_set_digest() to set the digest type for PKCS#7
3112 digestedData type. Add additional code to correctly generate the
3113 digestedData type and add support for this type in PKCS7 initialization
3117 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3118 structure of type "other".
3121 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3122 sure the loop does correctly stop and breaking ("division by zero")
3123 modulus operations are not performed. The (pre-generated) prime
3124 table crypto/bn/bn_prime.h was already correct, but it could not be
3125 re-generated on some platforms because of the "division by zero"
3126 situation in the script.
3127 [Ralf S. Engelschall]
3129 *) Update support for ECC-based TLS ciphersuites according to
3130 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3131 SHA-1 now is only used for "small" curves (where the
3132 representation of a field element takes up to 24 bytes); for
3133 larger curves, the field element resulting from ECDH is directly
3134 used as premaster secret.
3135 [Douglas Stebila (Sun Microsystems Laboratories)]
3137 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3138 curve secp160r1 to the tests.
3139 [Douglas Stebila (Sun Microsystems Laboratories)]
3141 *) Add the possibility to load symbols globally with DSO.
3142 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3144 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3145 control of the error stack.
3148 *) Add support for STORE in ENGINE.
3151 *) Add the STORE type. The intention is to provide a common interface
3152 to certificate and key stores, be they simple file-based stores, or
3153 HSM-type store, or LDAP stores, or...
3154 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3157 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3158 pass a list of arguments to any function as well as provide a way
3159 for a function to pass data back to the caller.
3162 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3163 works like BUF_strdup() but can be used to duplicate a portion of
3164 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3168 *) Add the function sk_find_ex() which works like sk_find(), but will
3169 return an index to an element even if an exact match couldn't be
3170 found. The index is guaranteed to point at the element where the
3171 searched-for key would be inserted to preserve sorting order.
3174 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3175 takes an extra flags argument for optional functionality. Currently,
3176 the following flags are defined:
3178 OBJ_BSEARCH_VALUE_ON_NOMATCH
3179 This one gets OBJ_bsearch_ex() to return a pointer to the first
3180 element where the comparing function returns a negative or zero
3183 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3184 This one gets OBJ_bsearch_ex() to return a pointer to the first
3185 element where the comparing function returns zero. This is useful
3186 if there are more than one element where the comparing function
3190 *) Make it possible to create self-signed certificates with 'openssl ca'
3191 in such a way that the self-signed certificate becomes part of the
3192 CA database and uses the same mechanisms for serial number generation
3193 as all other certificate signing. The new flag '-selfsign' enables
3194 this functionality. Adapt CA.sh and CA.pl.in.
3197 *) Add functionality to check the public key of a certificate request
3198 against a given private. This is useful to check that a certificate
3199 request can be signed by that key (self-signing).
3202 *) Make it possible to have multiple active certificates with the same
3203 subject in the CA index file. This is done only if the keyword
3204 'unique_subject' is set to 'no' in the main CA section (default
3205 if 'CA_default') of the configuration file. The value is saved
3206 with the database itself in a separate index attribute file,
3207 named like the index file with '.attr' appended to the name.
3210 *) Generate muti valued AVAs using '+' notation in config files for
3214 *) Support for nameConstraints certificate extension.
3217 *) Support for policyConstraints certificate extension.
3220 *) Support for policyMappings certificate extension.
3223 *) Make sure the default DSA_METHOD implementation only uses its
3224 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3225 and change its own handlers to be NULL so as to remove unnecessary
3226 indirection. This lets alternative implementations fallback to the
3227 default implementation more easily.
3230 *) Support for directoryName in GeneralName related extensions
3234 *) Make it possible to link applications using Makefile.shared.
3235 Make that possible even when linking against static libraries!
3238 *) Support for single pass processing for S/MIME signing. This now
3239 means that S/MIME signing can be done from a pipe, in addition
3240 cleartext signing (multipart/signed type) is effectively streaming
3241 and the signed data does not need to be all held in memory.
3243 This is done with a new flag PKCS7_STREAM. When this flag is set
3244 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3245 is done after the data is output (and digests calculated) in
3246 SMIME_write_PKCS7().
3249 *) Add full support for -rpath/-R, both in shared libraries and
3250 applications, at least on the platforms where it's known how
3254 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3255 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3256 will now compute a table of multiples of the generator that
3257 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3258 faster (notably in the case of a single point multiplication,
3259 scalar * generator).
3260 [Nils Larsch, Bodo Moeller]
3262 *) IPv6 support for certificate extensions. The various extensions
3263 which use the IP:a.b.c.d can now take IPv6 addresses using the
3264 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3268 *) Added an ENGINE that implements RSA by performing private key
3269 exponentiations with the GMP library. The conversions to and from
3270 GMP's mpz_t format aren't optimised nor are any montgomery forms
3271 cached, and on x86 it appears OpenSSL's own performance has caught up.
3272 However there are likely to be other architectures where GMP could
3273 provide a boost. This ENGINE is not built in by default, but it can be
3274 specified at Configure time and should be accompanied by the necessary
3275 linker additions, eg;
3276 ./config -DOPENSSL_USE_GMP -lgmp
3279 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3280 testing availability of engines with "-t" - the old behaviour is
3281 produced by increasing the feature's verbosity with "-tt".
3284 *) ECDSA routines: under certain error conditions uninitialized BN objects
3285 could be freed. Solution: make sure initialization is performed early
3286 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3290 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3291 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3292 software implementations. For DSA and DH, parameter generation can
3293 also be overriden by providing the appropriate method callbacks.
3296 *) Change the "progress" mechanism used in key-generation and
3297 primality testing to functions that take a new BN_GENCB pointer in
3298 place of callback/argument pairs. The new API functions have "_ex"
3299 postfixes and the older functions are reimplemented as wrappers for
3300 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3301 declarations of the old functions to help (graceful) attempts to
3302 migrate to the new functions. Also, the new key-generation API
3303 functions operate on a caller-supplied key-structure and return
3304 success/failure rather than returning a key or NULL - this is to
3305 help make "keygen" another member function of RSA_METHOD etc.
3307 Example for using the new callback interface:
3309 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3313 BN_GENCB_set(&my_cb, my_callback, my_arg);
3315 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3316 /* For the meaning of a, b in calls to my_callback(), see the
3317 * documentation of the function that calls the callback.
3318 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3319 * my_callback should return 1 if it wants BN_is_prime_ex()
3320 * to continue, or 0 to stop.
3325 *) Change the ZLIB compression method to be stateful, and make it
3326 available to TLS with the number defined in
3327 draft-ietf-tls-compression-04.txt.
3330 *) Add the ASN.1 structures and functions for CertificatePair, which
3331 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3333 CertificatePair ::= SEQUENCE {
3334 forward [0] Certificate OPTIONAL,
3335 reverse [1] Certificate OPTIONAL,
3336 -- at least one of the pair shall be present -- }
3338 Also implement the PEM functions to read and write certificate
3339 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3341 This needed to be defined, mostly for the sake of the LDAP
3342 attribute crossCertificatePair, but may prove useful elsewhere as
3346 *) Make it possible to inhibit symlinking of shared libraries in
3347 Makefile.shared, for Cygwin's sake.
3350 *) Extend the BIGNUM API by creating a function
3351 void BN_set_negative(BIGNUM *a, int neg);
3352 and a macro that behave like
3353 int BN_is_negative(const BIGNUM *a);
3355 to avoid the need to access 'a->neg' directly in applications.
3358 *) Implement fast modular reduction for pseudo-Mersenne primes
3359 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3360 EC_GROUP_new_curve_GFp() will now automatically use this
3362 [Nils Larsch <nla@trustcenter.de>]
3364 *) Add new lock type (CRYPTO_LOCK_BN).
3367 *) Change the ENGINE framework to automatically load engines
3368 dynamically from specific directories unless they could be
3369 found to already be built in or loaded. Move all the
3370 current engines except for the cryptodev one to a new
3372 The engines in engines/ are built as shared libraries if
3373 the "shared" options was given to ./Configure or ./config.
3374 Otherwise, they are inserted in libcrypto.a.
3375 /usr/local/ssl/engines is the default directory for dynamic
3376 engines, but that can be overriden at configure time through
3377 the usual use of --prefix and/or --openssldir, and at run
3378 time with the environment variable OPENSSL_ENGINES.
3379 [Geoff Thorpe and Richard Levitte]
3381 *) Add Makefile.shared, a helper makefile to build shared
3382 libraries. Addapt Makefile.org.
3385 *) Add version info to Win32 DLLs.
3386 [Peter 'Luna' Runestig" <peter@runestig.com>]
3388 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3389 can be added using this API to created arbitrary PKCS#12
3390 files while avoiding the low level API.
3392 New options to PKCS12_create(), key or cert can be NULL and
3393 will then be omitted from the output file. The encryption
3394 algorithm NIDs can be set to -1 for no encryption, the mac
3395 iteration count can be set to 0 to omit the mac.
3397 Enhance pkcs12 utility by making the -nokeys and -nocerts
3398 options work when creating a PKCS#12 file. New option -nomac
3399 to omit the mac, NONE can be set for an encryption algorithm.
3400 New code is modified to use the enhanced PKCS12_create()
3401 instead of the low level API.
3404 *) Extend ASN1 encoder to support indefinite length constructed
3405 encoding. This can output sequences tags and octet strings in
3406 this form. Modify pk7_asn1.c to support indefinite length
3407 encoding. This is experimental and needs additional code to
3408 be useful, such as an ASN1 bio and some enhanced streaming
3411 Extend template encode functionality so that tagging is passed
3412 down to the template encoder.
3415 *) Let 'openssl req' fail if an argument to '-newkey' is not
3416 recognized instead of using RSA as a default.
3419 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3420 As these are not official, they are not included in "ALL";
3421 the "ECCdraft" ciphersuite group alias can be used to select them.
3422 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3424 *) Add ECDH engine support.
3425 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3427 *) Add ECDH in new directory crypto/ecdh/.
3428 [Douglas Stebila (Sun Microsystems Laboratories)]
3430 *) Let BN_rand_range() abort with an error after 100 iterations
3431 without success (which indicates a broken PRNG).
3434 *) Change BN_mod_sqrt() so that it verifies that the input value
3435 is really the square of the return value. (Previously,
3436 BN_mod_sqrt would show GIGO behaviour.)
3439 *) Add named elliptic curves over binary fields from X9.62, SECG,
3440 and WAP/WTLS; add OIDs that were still missing.
3442 [Sheueling Chang Shantz and Douglas Stebila
3443 (Sun Microsystems Laboratories)]
3445 *) Extend the EC library for elliptic curves over binary fields
3446 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3449 EC_GF2m_simple_method
3453 EC_GROUP_new_curve_GF2m
3454 EC_GROUP_set_curve_GF2m
3455 EC_GROUP_get_curve_GF2m
3456 EC_POINT_set_affine_coordinates_GF2m
3457 EC_POINT_get_affine_coordinates_GF2m
3458 EC_POINT_set_compressed_coordinates_GF2m
3460 Point compression for binary fields is disabled by default for
3461 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3464 As binary polynomials are represented as BIGNUMs, various members
3465 of the EC_GROUP and EC_POINT data structures can be shared
3466 between the implementations for prime fields and binary fields;
3467 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3468 are essentially identical to their ..._GFp counterparts.
3469 (For simplicity, the '..._GFp' prefix has been dropped from
3470 various internal method names.)
3472 An internal 'field_div' method (similar to 'field_mul' and
3473 'field_sqr') has been added; this is used only for binary fields.
3475 [Sheueling Chang Shantz and Douglas Stebila
3476 (Sun Microsystems Laboratories)]
3478 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3479 through methods ('mul', 'precompute_mult').
3481 The generic implementations (now internally called 'ec_wNAF_mul'
3482 and 'ec_wNAF_precomputed_mult') remain the default if these
3483 methods are undefined.
3485 [Sheueling Chang Shantz and Douglas Stebila
3486 (Sun Microsystems Laboratories)]
3488 *) New function EC_GROUP_get_degree, which is defined through
3489 EC_METHOD. For curves over prime fields, this returns the bit
3490 length of the modulus.
3492 [Sheueling Chang Shantz and Douglas Stebila
3493 (Sun Microsystems Laboratories)]
3495 *) New functions EC_GROUP_dup, EC_POINT_dup.
3496 (These simply call ..._new and ..._copy).
3498 [Sheueling Chang Shantz and Douglas Stebila
3499 (Sun Microsystems Laboratories)]
3501 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3502 Polynomials are represented as BIGNUMs (where the sign bit is not
3503 used) in the following functions [macros]:
3506 BN_GF2m_sub [= BN_GF2m_add]
3507 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3508 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3509 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3511 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3512 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3513 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3514 BN_GF2m_cmp [= BN_ucmp]
3516 (Note that only the 'mod' functions are actually for fields GF(2^m).
3517 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3519 For some functions, an the irreducible polynomial defining a
3520 field can be given as an 'unsigned int[]' with strictly
3521 decreasing elements giving the indices of those bits that are set;
3522 i.e., p[] represents the polynomial
3523 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3525 p[0] > p[1] > ... > p[k] = 0.
3526 This applies to the following functions:
3531 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3532 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3534 BN_GF2m_mod_sqrt_arr
3535 BN_GF2m_mod_solve_quad_arr
3539 Conversion can be performed by the following functions:
3544 bntest.c has additional tests for binary polynomial arithmetic.
3546 Two implementations for BN_GF2m_mod_div() are available.
3547 The default algorithm simply uses BN_GF2m_mod_inv() and
3548 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3549 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3550 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3552 [Sheueling Chang Shantz and Douglas Stebila
3553 (Sun Microsystems Laboratories)]
3555 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3556 functionality is disabled at compile-time.
3557 [Douglas Stebila <douglas.stebila@sun.com>]
3559 *) Change default behaviour of 'openssl asn1parse' so that more
3560 information is visible when viewing, e.g., a certificate:
3562 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3563 mode the content of non-printable OCTET STRINGs is output in a
3564 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3565 avoid the appearance of a printable string.
3566 [Nils Larsch <nla@trustcenter.de>]
3568 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3570 EC_GROUP_set_asn1_flag()
3571 EC_GROUP_get_asn1_flag()
3572 EC_GROUP_set_point_conversion_form()
3573 EC_GROUP_get_point_conversion_form()
3574 These control ASN1 encoding details:
3575 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3576 has been set to OPENSSL_EC_NAMED_CURVE.
3577 - Points are encoded in uncompressed form by default; options for
3578 asn1_for are as for point2oct, namely
3579 POINT_CONVERSION_COMPRESSED
3580 POINT_CONVERSION_UNCOMPRESSED
3581 POINT_CONVERSION_HYBRID
3583 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3586 EC_GROUP_get0_seed()
3587 EC_GROUP_get_seed_len()
3588 This is used only for ASN1 purposes (so far).
3589 [Nils Larsch <nla@trustcenter.de>]
3591 *) Add 'field_type' member to EC_METHOD, which holds the NID
3592 of the appropriate field type OID. The new function
3593 EC_METHOD_get_field_type() returns this value.
3594 [Nils Larsch <nla@trustcenter.de>]
3599 EC_POINT_point2hex()
3600 EC_POINT_hex2point()
3601 providing useful interfaces to EC_POINT_point2oct() and
3602 EC_POINT_oct2point().
3603 [Nils Larsch <nla@trustcenter.de>]
3605 *) Change internals of the EC library so that the functions
3606 EC_GROUP_set_generator()
3607 EC_GROUP_get_generator()
3608 EC_GROUP_get_order()
3609 EC_GROUP_get_cofactor()
3610 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3611 to methods, which would lead to unnecessary code duplication when
3612 adding different types of curves.
3613 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3615 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3616 arithmetic, and such that modified wNAFs are generated
3617 (which avoid length expansion in many cases).
3620 *) Add a function EC_GROUP_check_discriminant() (defined via
3621 EC_METHOD) that verifies that the curve discriminant is non-zero.
3623 Add a function EC_GROUP_check() that makes some sanity tests
3624 on a EC_GROUP, its generator and order. This includes
3625 EC_GROUP_check_discriminant().
3626 [Nils Larsch <nla@trustcenter.de>]
3628 *) Add ECDSA in new directory crypto/ecdsa/.
3630 Add applications 'openssl ecparam' and 'openssl ecdsa'
3631 (these are based on 'openssl dsaparam' and 'openssl dsa').
3633 ECDSA support is also included in various other files across the
3634 library. Most notably,
3635 - 'openssl req' now has a '-newkey ecdsa:file' option;
3636 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3637 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3638 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3639 them suitable for ECDSA where domain parameters must be
3640 extracted before the specific public key;
3641 - ECDSA engine support has been added.
3642 [Nils Larsch <nla@trustcenter.de>]
3644 *) Include some named elliptic curves, and add OIDs from X9.62,
3645 SECG, and WAP/WTLS. Each curve can be obtained from the new
3647 EC_GROUP_new_by_curve_name(),
3648 and the list of available named curves can be obtained with
3649 EC_get_builtin_curves().
3650 Also add a 'curve_name' member to EC_GROUP objects, which can be
3652 EC_GROUP_set_curve_name()
3653 EC_GROUP_get_curve_name()
3654 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3656 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3657 was actually never needed) and in BN_mul(). The removal in BN_mul()
3658 required a small change in bn_mul_part_recursive() and the addition
3659 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3660 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3661 bn_sub_words() and bn_add_words() except they take arrays with
3665 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3667 *) Cleanse PEM buffers before freeing them since they may contain
3669 [Benjamin Bennett <ben@psc.edu>]
3671 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3672 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3673 authentication-only ciphersuites.
3676 *) Since AES128 and AES256 share a single mask bit in the logic of
3677 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3678 kludge to work properly if AES128 is available and AES256 isn't.
3681 *) Expand security boundary to match 1.1.1 module.
3684 *) Remove redundant features: hash file source, editing of test vectors
3685 modify fipsld to use external fips_premain.c signature.
3688 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3689 run algorithm test programs.
3692 *) Make algorithm test programs more tolerant of whitespace.
3695 *) Have SSL/TLS server implementation tolerate "mismatched" record
3696 protocol version while receiving ClientHello even if the
3697 ClientHello is fragmented. (The server can't insist on the
3698 particular protocol version it has chosen before the ServerHello
3699 message has informed the client about his choice.)
3702 *) Load error codes if they are not already present instead of using a
3703 static variable. This allows them to be cleanly unloaded and reloaded.
3706 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3708 *) Introduce limits to prevent malicious keys being able to
3709 cause a denial of service. (CVE-2006-2940)
3710 [Steve Henson, Bodo Moeller]
3712 *) Fix ASN.1 parsing of certain invalid structures that can result
3713 in a denial of service. (CVE-2006-2937) [Steve Henson]
3715 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3716 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3718 *) Fix SSL client code which could crash if connecting to a
3719 malicious SSLv2 server. (CVE-2006-4343)
3720 [Tavis Ormandy and Will Drewry, Google Security Team]
3722 *) Change ciphersuite string processing so that an explicit
3723 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3724 will no longer include "AES128-SHA"), and any other similar
3725 ciphersuite (same bitmap) from *other* protocol versions (so that
3726 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3727 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3728 changes from 0.9.8b and 0.9.8d.
3731 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3733 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3734 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3736 *) Change the Unix randomness entropy gathering to use poll() when
3737 possible instead of select(), since the latter has some
3738 undesirable limitations.
3739 [Darryl Miles via Richard Levitte and Bodo Moeller]
3741 *) Disable rogue ciphersuites:
3743 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3744 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3745 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3747 The latter two were purportedly from
3748 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3751 Also deactive the remaining ciphersuites from
3752 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3753 unofficial, and the ID has long expired.
3756 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3757 dual-core machines) and other potential thread-safety issues.
3760 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3762 *) Adapt fipsld and the build system to link against the validated FIPS
3763 module in FIPS mode.
3766 *) Fixes for VC++ 2005 build under Windows.
3769 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3770 from a Windows bash shell such as MSYS. It is autodetected from the
3771 "config" script when run from a VC++ environment. Modify standard VC++
3772 build to use fipscanister.o from the GNU make build.
3775 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3777 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3778 The value now differs depending on if you build for FIPS or not.
3779 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3780 safely run with a non-FIPSed libcrypto, as it may crash because of
3781 the difference induced by this change.
3784 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3786 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3787 (part of SSL_OP_ALL). This option used to disable the
3788 countermeasure against man-in-the-middle protocol-version
3789 rollback in the SSL 2.0 server implementation, which is a bad
3790 idea. (CVE-2005-2969)
3792 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3793 for Information Security, National Institute of Advanced Industrial
3794 Science and Technology [AIST], Japan)]
3796 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3797 mainly for FIPS compliance and not fully integrated at this stage.
3800 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3801 the exponentiation using a fixed-length exponent. (Otherwise,
3802 the information leaked through timing could expose the secret key
3803 after many signatures; cf. Bleichenbacher's attack on DSA with
3807 *) Make a new fixed-window mod_exp implementation the default for
3808 RSA, DSA, and DH private-key operations so that the sequence of
3809 squares and multiplies and the memory access pattern are
3810 independent of the particular secret key. This will mitigate
3811 cache-timing and potential related attacks.
3813 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3814 and this is automatically used by BN_mod_exp_mont() if the new flag
3815 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3816 will use this BN flag for private exponents unless the flag
3817 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3818 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3820 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3822 *) Change the client implementation for SSLv23_method() and
3823 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3824 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3825 (Previously, the SSL 2.0 backwards compatible Client Hello
3826 message format would be used even with SSL_OP_NO_SSLv2.)
3829 *) Add support for smime-type MIME parameter in S/MIME messages which some
3833 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3834 a threadsafe manner. Modify rsa code to use new function and add calls
3835 to dsa and dh code (which had race conditions before).
3838 *) Include the fixed error library code in the C error file definitions
3839 instead of fixing them up at runtime. This keeps the error code
3840 structures constant.
3843 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3845 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3848 *) Fixes for newer kerberos headers. NB: the casts are needed because
3849 the 'length' field is signed on one version and unsigned on another
3850 with no (?) obvious way to tell the difference, without these VC++
3851 complains. Also the "definition" of FAR (blank) is no longer included
3852 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3853 some needed definitions.
3856 *) Undo Cygwin change.
3859 *) Added support for proxy certificates according to RFC 3820.
3860 Because they may be a security thread to unaware applications,
3861 they must be explicitely allowed in run-time. See
3862 docs/HOWTO/proxy_certificates.txt for further information.
3865 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3867 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3868 server and client random values. Previously
3869 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3870 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3872 This change has negligible security impact because:
3874 1. Server and client random values still have 24 bytes of pseudo random
3877 2. Server and client random values are sent in the clear in the initial
3880 3. The master secret is derived using the premaster secret (48 bytes in
3881 size for static RSA ciphersuites) as well as client server and random
3884 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3887 [Stephen Henson, reported by UK NISCC]
3889 *) Use Windows randomness collection on Cygwin.
3892 *) Fix hang in EGD/PRNGD query when communication socket is closed
3893 prematurely by EGD/PRNGD.
3894 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3896 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3899 *) Back-port of selected performance improvements from development
3900 branch, as well as improved support for PowerPC platforms.
3903 *) Add lots of checks for memory allocation failure, error codes to indicate
3904 failure and freeing up memory if a failure occurs.
3905 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3907 *) Add new -passin argument to dgst.
3910 *) Perform some character comparisons of different types in X509_NAME_cmp:
3911 this is needed for some certificates that reencode DNs into UTF8Strings
3912 (in violation of RFC3280) and can't or wont issue name rollover
3916 *) Make an explicit check during certificate validation to see that
3917 the CA setting in each certificate on the chain is correct. As a
3918 side effect always do the following basic checks on extensions,
3919 not just when there's an associated purpose to the check:
3921 - if there is an unhandled critical extension (unless the user
3922 has chosen to ignore this fault)
3923 - if the path length has been exceeded (if one is set at all)
3924 - that certain extensions fit the associated purpose (if one has
3928 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3930 *) Avoid a race condition when CRLs are checked in a multi threaded
3931 environment. This would happen due to the reordering of the revoked
3932 entries during signature checking and serial number lookup. Now the
3933 encoding is cached and the serial number sort performed under a lock.
3934 Add new STACK function sk_is_sorted().
3937 *) Add Delta CRL to the extension code.
3940 *) Various fixes to s3_pkt.c so alerts are sent properly.
3941 [David Holmes <d.holmes@f5.com>]
3943 *) Reduce the chances of duplicate issuer name and serial numbers (in
3944 violation of RFC3280) using the OpenSSL certificate creation utilities.
3945 This is done by creating a random 64 bit value for the initial serial
3946 number when a serial number file is created or when a self signed
3947 certificate is created using 'openssl req -x509'. The initial serial
3948 number file is created using 'openssl x509 -next_serial' in CA.pl
3949 rather than being initialized to 1.
3952 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3954 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3955 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3956 [Joe Orton, Steve Henson]
3958 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3960 [Joe Orton, Steve Henson]
3962 *) Make it possible to have multiple active certificates with the same
3963 subject in the CA index file. This is done only if the keyword
3964 'unique_subject' is set to 'no' in the main CA section (default
3965 if 'CA_default') of the configuration file. The value is saved
3966 with the database itself in a separate index attribute file,
3967 named like the index file with '.attr' appended to the name.
3970 *) X509 verify fixes. Disable broken certificate workarounds when
3971 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3972 keyUsage extension present. Don't accept CRLs with unhandled critical
3973 extensions: since verify currently doesn't process CRL extensions this
3974 rejects a CRL with *any* critical extensions. Add new verify error codes
3978 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3979 A clarification of RFC2560 will require the use of OCTET STRINGs and
3980 some implementations cannot handle the current raw format. Since OpenSSL
3981 copies and compares OCSP nonces as opaque blobs without any attempt at
3982 parsing them this should not create any compatibility issues.
3985 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3986 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3987 this HMAC (and other) operations are several times slower than OpenSSL
3991 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3992 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3994 *) Use the correct content when signing type "other".
3997 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3999 *) Fix various bugs revealed by running the NISCC test suite:
4001 Stop out of bounds reads in the ASN1 code when presented with
4002 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4004 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4006 If verify callback ignores invalid public key errors don't try to check
4007 certificate signature with the NULL public key.
4011 *) New -ignore_err option in ocsp application to stop the server
4012 exiting on the first error in a request.
4015 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4016 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4020 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4021 extra data after the compression methods not only for TLS 1.0
4022 but also for SSL 3.0 (as required by the specification).
4023 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4025 *) Change X509_certificate_type() to mark the key as exported/exportable
4026 when it's 512 *bits* long, not 512 bytes.
4029 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4030 blocks during encryption.
4033 *) Various fixes to base64 BIO and non blocking I/O. On write
4034 flushes were not handled properly if the BIO retried. On read
4035 data was not being buffered properly and had various logic bugs.
4036 This also affects blocking I/O when the data being decoded is a
4040 *) Various S/MIME bugfixes and compatibility changes:
4041 output correct application/pkcs7 MIME type if
4042 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4043 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4044 of files as .eml work). Correctly handle very long lines in MIME
4048 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4050 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4051 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4052 a protocol version number mismatch like a decryption error
4053 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4056 *) Turn on RSA blinding by default in the default implementation
4057 to avoid a timing attack. Applications that don't want it can call
4058 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4059 They would be ill-advised to do so in most cases.
4060 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4062 *) Change RSA blinding code so that it works when the PRNG is not
4063 seeded (in this case, the secret RSA exponent is abused as
4064 an unpredictable seed -- if it is not unpredictable, there
4065 is no point in blinding anyway). Make RSA blinding thread-safe
4066 by remembering the creator's thread ID in rsa->blinding and
4067 having all other threads use local one-time blinding factors
4068 (this requires more computation than sharing rsa->blinding, but
4069 avoids excessive locking; and if an RSA object is not shared
4070 between threads, blinding will still be very fast).
4073 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4074 ENGINE as defaults for all supported algorithms irrespective of
4075 the 'flags' parameter. 'flags' is now honoured, so applications
4076 should make sure they are passing it correctly.
4079 *) Target "mingw" now allows native Windows code to be generated in
4080 the Cygwin environment as well as with the MinGW compiler.
4083 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4085 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4086 via timing by performing a MAC computation even if incorrrect
4087 block cipher padding has been found. This is a countermeasure
4088 against active attacks where the attacker has to distinguish
4089 between bad padding and a MAC verification error. (CVE-2003-0078)
4091 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4092 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4093 Martin Vuagnoux (EPFL, Ilion)]
4095 *) Make the no-err option work as intended. The intention with no-err
4096 is not to have the whole error stack handling routines removed from
4097 libcrypto, it's only intended to remove all the function name and
4098 reason texts, thereby removing some of the footprint that may not
4099 be interesting if those errors aren't displayed anyway.
4101 NOTE: it's still possible for any application or module to have it's
4102 own set of error texts inserted. The routines are there, just not
4103 used by default when no-err is given.
4106 *) Add support for FreeBSD on IA64.
4107 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4109 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4110 Kerberos function mit_des_cbc_cksum(). Before this change,
4111 the value returned by DES_cbc_cksum() was like the one from
4112 mit_des_cbc_cksum(), except the bytes were swapped.
4113 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4115 *) Allow an application to disable the automatic SSL chain building.
4116 Before this a rather primitive chain build was always performed in
4117 ssl3_output_cert_chain(): an application had no way to send the
4118 correct chain if the automatic operation produced an incorrect result.
4120 Now the chain builder is disabled if either:
4122 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4124 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4126 The reasoning behind this is that an application would not want the
4127 auto chain building to take place if extra chain certificates are
4128 present and it might also want a means of sending no additional
4129 certificates (for example the chain has two certificates and the
4133 *) Add the possibility to build without the ENGINE framework.
4134 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4136 *) Under Win32 gmtime() can return NULL: check return value in
4137 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4140 *) DSA routines: under certain error conditions uninitialized BN objects
4141 could be freed. Solution: make sure initialization is performed early
4142 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4143 Nils Larsch <nla@trustcenter.de> via PR#459)
4146 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4147 checked on reconnect on the client side, therefore session resumption
4148 could still fail with a "ssl session id is different" error. This
4149 behaviour is masked when SSL_OP_ALL is used due to
4150 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4151 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4152 followup to PR #377.
4155 *) IA-32 assembler support enhancements: unified ELF targets, support
4156 for SCO/Caldera platforms, fix for Cygwin shared build.
4159 *) Add support for FreeBSD on sparc64. As a consequence, support for
4160 FreeBSD on non-x86 processors is separate from x86 processors on
4161 the config script, much like the NetBSD support.
4162 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4164 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4166 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4169 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4170 code (06) was taken as the first octet of the session ID and the last
4171 octet was ignored consequently. As a result SSLv2 client side session
4172 caching could not have worked due to the session ID mismatch between
4174 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4178 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4179 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4183 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4184 seems that in spite of existing for more than a year, many application
4185 author have done nothing to provide the necessary callbacks, which
4186 means that this particular engine will not work properly anywhere.
4187 This is a very unfortunate situation which forces us, in the name
4188 of usability, to give the hw_ncipher.c a static lock, which is part
4190 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4191 appear in 0.9.8 or later. We EXPECT application authors to have
4192 dealt properly with this when 0.9.8 is released (unless we actually
4193 make such changes in the libcrypto locking code that changes will
4194 have to be made anyway).
4197 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4198 octets have been read, EOF or an error occurs. Without this change
4199 some truncated ASN1 structures will not produce an error.
4202 *) Disable Heimdal support, since it hasn't been fully implemented.
4203 Still give the possibility to force the use of Heimdal, but with
4204 warnings and a request that patches get sent to openssl-dev.
4207 *) Add the VC-CE target, introduce the WINCE sysname, and add
4208 INSTALL.WCE and appropriate conditionals to make it build.
4209 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4211 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4212 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4213 edit numbers of the version.
4214 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4216 *) Introduce safe string copy and catenation functions
4217 (BUF_strlcpy() and BUF_strlcat()).
4218 [Ben Laurie (CHATS) and Richard Levitte]
4220 *) Avoid using fixed-size buffers for one-line DNs.
4221 [Ben Laurie (CHATS)]
4223 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4224 resizing buffers containing secrets, and use where appropriate.
4225 [Ben Laurie (CHATS)]
4227 *) Avoid using fixed size buffers for configuration file location.
4228 [Ben Laurie (CHATS)]
4230 *) Avoid filename truncation for various CA files.
4231 [Ben Laurie (CHATS)]
4233 *) Use sizeof in preference to magic numbers.
4234 [Ben Laurie (CHATS)]
4236 *) Avoid filename truncation in cert requests.
4237 [Ben Laurie (CHATS)]
4239 *) Add assertions to check for (supposedly impossible) buffer
4241 [Ben Laurie (CHATS)]
4243 *) Don't cache truncated DNS entries in the local cache (this could
4244 potentially lead to a spoofing attack).
4245 [Ben Laurie (CHATS)]
4247 *) Fix various buffers to be large enough for hex/decimal
4248 representations in a platform independent manner.
4249 [Ben Laurie (CHATS)]
4251 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4252 resizing buffers containing secrets, and use where appropriate.
4253 [Ben Laurie (CHATS)]
4255 *) Add BIO_indent() to avoid much slightly worrying code to do
4257 [Ben Laurie (CHATS)]
4259 *) Convert sprintf()/BIO_puts() to BIO_printf().
4260 [Ben Laurie (CHATS)]
4262 *) buffer_gets() could terminate with the buffer only half
4264 [Ben Laurie (CHATS)]
4266 *) Add assertions to prevent user-supplied crypto functions from
4267 overflowing internal buffers by having large block sizes, etc.
4268 [Ben Laurie (CHATS)]
4270 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4272 [Ben Laurie (CHATS)]
4274 *) Eliminate unused copy of key in RC4.
4275 [Ben Laurie (CHATS)]
4277 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4278 [Ben Laurie (CHATS)]
4280 *) Fix off-by-one error in EGD path.
4281 [Ben Laurie (CHATS)]
4283 *) If RANDFILE path is too long, ignore instead of truncating.
4284 [Ben Laurie (CHATS)]
4286 *) Eliminate unused and incorrectly sized X.509 structure
4288 [Ben Laurie (CHATS)]
4290 *) Eliminate unused and dangerous function knumber().
4291 [Ben Laurie (CHATS)]
4293 *) Eliminate unused and dangerous structure, KSSL_ERR.
4294 [Ben Laurie (CHATS)]
4296 *) Protect against overlong session ID context length in an encoded
4297 session object. Since these are local, this does not appear to be
4299 [Ben Laurie (CHATS)]
4301 *) Change from security patch (see 0.9.6e below) that did not affect
4302 the 0.9.6 release series:
4304 Remote buffer overflow in SSL3 protocol - an attacker could
4305 supply an oversized master key in Kerberos-enabled versions.
4307 [Ben Laurie (CHATS)]
4309 *) Change the SSL kerb5 codes to match RFC 2712.
4312 *) Make -nameopt work fully for req and add -reqopt switch.
4313 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4315 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4316 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4318 *) Make sure tests can be performed even if the corresponding algorithms
4319 have been removed entirely. This was also the last step to make
4320 OpenSSL compilable with DJGPP under all reasonable conditions.
4321 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4323 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4324 to allow version independent disabling of normally unselected ciphers,
4325 which may be activated as a side-effect of selecting a single cipher.
4327 (E.g., cipher list string "RSA" enables ciphersuites that are left
4328 out of "ALL" because they do not provide symmetric encryption.
4329 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4330 [Lutz Jaenicke, Bodo Moeller]
4332 *) Add appropriate support for separate platform-dependent build
4333 directories. The recommended way to make a platform-dependent
4334 build directory is the following (tested on Linux), maybe with
4337 # Place yourself outside of the OpenSSL source tree. In
4338 # this example, the environment variable OPENSSL_SOURCE
4339 # is assumed to contain the absolute OpenSSL source directory.
4340 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4341 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4342 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4343 mkdir -p `dirname $F`
4344 ln -s $OPENSSL_SOURCE/$F $F
4347 To be absolutely sure not to disturb the source tree, a "make clean"
4348 is a good thing. If it isn't successfull, don't worry about it,
4349 it probably means the source directory is very clean.
4352 *) Make sure any ENGINE control commands make local copies of string
4353 pointers passed to them whenever necessary. Otherwise it is possible
4354 the caller may have overwritten (or deallocated) the original string
4355 data when a later ENGINE operation tries to use the stored values.
4356 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4358 *) Improve diagnostics in file reading and command-line digests.
4359 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4361 *) Add AES modes CFB and OFB to the object database. Correct an
4362 error in AES-CFB decryption.
4365 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4366 allows existing EVP_CIPHER_CTX structures to be reused after
4367 calling EVP_*Final(). This behaviour is used by encryption
4368 BIOs and some applications. This has the side effect that
4369 applications must explicitly clean up cipher contexts with
4370 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4373 *) Check the values of dna and dnb in bn_mul_recursive before calling
4374 bn_mul_comba (a non zero value means the a or b arrays do not contain
4375 n2 elements) and fallback to bn_mul_normal if either is not zero.
4378 *) Fix escaping of non-ASCII characters when using the -subj option
4379 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4382 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4383 form for "surname", serialNumber has no short form.
4384 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4385 therefore remove "mail" short name for "internet 7".
4386 The OID for unique identifiers in X509 certificates is
4387 x500UniqueIdentifier, not uniqueIdentifier.
4388 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4391 *) Add an "init" command to the ENGINE config module and auto initialize
4392 ENGINEs. Without any "init" command the ENGINE will be initialized
4393 after all ctrl commands have been executed on it. If init=1 the
4394 ENGINE is initailized at that point (ctrls before that point are run
4395 on the uninitialized ENGINE and after on the initialized one). If
4396 init=0 then the ENGINE will not be iniatialized at all.
4399 *) Fix the 'app_verify_callback' interface so that the user-defined
4400 argument is actually passed to the callback: In the
4401 SSL_CTX_set_cert_verify_callback() prototype, the callback
4402 declaration has been changed from
4405 int (*cb)(X509_STORE_CTX *,void *);
4406 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4407 i=s->ctx->app_verify_callback(&ctx)
4408 has been changed into
4409 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4411 To update applications using SSL_CTX_set_cert_verify_callback(),
4412 a dummy argument can be added to their callback functions.
4413 [D. K. Smetters <smetters@parc.xerox.com>]
4415 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4416 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4418 *) Add and OPENSSL_LOAD_CONF define which will cause
4419 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4420 This allows older applications to transparently support certain
4421 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4422 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4423 load the config file and OPENSSL_add_all_algorithms_conf() which will
4424 always load it have also been added.
4427 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4428 Adjust NIDs and EVP layer.
4429 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4431 *) Config modules support in openssl utility.
4433 Most commands now load modules from the config file,
4434 though in a few (such as version) this isn't done
4435 because it couldn't be used for anything.
4437 In the case of ca and req the config file used is
4438 the same as the utility itself: that is the -config
4439 command line option can be used to specify an
4443 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4444 use "openssl_conf" if filename is NULL use default openssl config file.
4447 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4448 config section name. Add a new flag to tolerate a missing config file
4449 and move code to CONF_modules_load_file().
4452 *) Support for crypto accelerator cards from Accelerated Encryption
4453 Processing, www.aep.ie. (Use engine 'aep')
4454 The support was copied from 0.9.6c [engine] and adapted/corrected
4455 to work with the new engine framework.
4456 [AEP Inc. and Richard Levitte]
4458 *) Support for SureWare crypto accelerator cards from Baltimore
4459 Technologies. (Use engine 'sureware')
4460 The support was copied from 0.9.6c [engine] and adapted
4461 to work with the new engine framework.
4464 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4465 make the newer ENGINE framework commands for the CHIL engine work.
4466 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4468 *) Make it possible to produce shared libraries on ReliantUNIX.
4469 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4471 *) Add the configuration target debug-linux-ppro.
4472 Make 'openssl rsa' use the general key loading routines
4473 implemented in apps.c, and make those routines able to
4474 handle the key format FORMAT_NETSCAPE and the variant
4476 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4478 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4479 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4481 *) Add -keyform to rsautl, and document -engine.
4482 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4484 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4485 BIO_R_NO_SUCH_FILE error code rather than the generic
4486 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4489 *) Add new functions
4491 ERR_peek_last_error_line
4492 ERR_peek_last_error_line_data.
4493 These are similar to
4496 ERR_peek_error_line_data,
4497 but report on the latest error recorded rather than the first one
4498 still in the error queue.
4499 [Ben Laurie, Bodo Moeller]
4501 *) default_algorithms option in ENGINE config module. This allows things
4503 default_algorithms = ALL
4504 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4507 *) Prelminary ENGINE config module.
4510 *) New experimental application configuration code.
4513 *) Change the AES code to follow the same name structure as all other
4514 symmetric ciphers, and behave the same way. Move everything to
4515 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4516 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4518 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4519 [Ben Laurie and Theo de Raadt]
4521 *) Add option to output public keys in req command.
4522 [Massimiliano Pala madwolf@openca.org]
4524 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4525 (up to about 10% better than before for P-192 and P-224).
4528 *) New functions/macros
4530 SSL_CTX_set_msg_callback(ctx, cb)
4531 SSL_CTX_set_msg_callback_arg(ctx, arg)
4532 SSL_set_msg_callback(ssl, cb)
4533 SSL_set_msg_callback_arg(ssl, arg)
4535 to request calling a callback function
4537 void cb(int write_p, int version, int content_type,
4538 const void *buf, size_t len, SSL *ssl, void *arg)
4540 whenever a protocol message has been completely received
4541 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4542 protocol version according to which the SSL library interprets
4543 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4544 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4545 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4546 specification (change_cipher_spec(20), alert(21), handshake(22)).
4547 'buf' and 'len' point to the actual message, 'ssl' to the
4548 SSL object, and 'arg' is the application-defined value set by
4549 SSL[_CTX]_set_msg_callback_arg().
4551 'openssl s_client' and 'openssl s_server' have new '-msg' options
4552 to enable a callback that displays all protocol messages.
4555 *) Change the shared library support so shared libraries are built as
4556 soon as the corresponding static library is finished, and thereby get
4557 openssl and the test programs linked against the shared library.
4558 This still only happens when the keyword "shard" has been given to
4559 the configuration scripts.
4561 NOTE: shared library support is still an experimental thing, and
4562 backward binary compatibility is still not guaranteed.
4563 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4565 *) Add support for Subject Information Access extension.
4566 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4568 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4569 additional bytes when new memory had to be allocated, not just
4570 when reusing an existing buffer.
4573 *) New command line and configuration option 'utf8' for the req command.
4574 This allows field values to be specified as UTF8 strings.
4577 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4578 runs for the former and machine-readable output for the latter.
4581 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4582 of the e-mail address in the DN (i.e., it will go into a certificate
4583 extension only). The new configuration file option 'email_in_dn = no'
4584 has the same effect.
4585 [Massimiliano Pala madwolf@openca.org]
4587 *) Change all functions with names starting with des_ to be starting
4588 with DES_ instead. Add wrappers that are compatible with libdes,
4589 but are named _ossl_old_des_*. Finally, add macros that map the
4590 des_* symbols to the corresponding _ossl_old_des_* if libdes
4591 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4592 desired, the des_* symbols will be mapped to DES_*, with one
4595 Since we provide two compatibility mappings, the user needs to
4596 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4597 compatibility is desired. The default (i.e., when that macro
4598 isn't defined) is OpenSSL 0.9.6c compatibility.
4600 There are also macros that enable and disable the support of old
4601 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4602 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4603 are defined, the default will apply: to support the old des routines.
4605 In either case, one must include openssl/des.h to get the correct
4606 definitions. Do not try to just include openssl/des_old.h, that
4609 NOTE: This is a major break of an old API into a new one. Software
4610 authors are encouraged to switch to the DES_ style functions. Some
4611 time in the future, des_old.h and the libdes compatibility functions
4612 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4613 default), and then completely removed.
4616 *) Test for certificates which contain unsupported critical extensions.
4617 If such a certificate is found during a verify operation it is
4618 rejected by default: this behaviour can be overridden by either
4619 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4620 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4621 X509_supported_extension() has also been added which returns 1 if a
4622 particular extension is supported.
4625 *) Modify the behaviour of EVP cipher functions in similar way to digests
4626 to retain compatibility with existing code.
4629 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4630 compatibility with existing code. In particular the 'ctx' parameter does
4631 not have to be to be initialized before the call to EVP_DigestInit() and
4632 it is tidied up after a call to EVP_DigestFinal(). New function
4633 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4634 EVP_MD_CTX_copy() changed to not require the destination to be
4635 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4636 requires the destination to be valid.
4638 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4639 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4642 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4643 so that complete 'Handshake' protocol structures are kept in memory
4644 instead of overwriting 'msg_type' and 'length' with 'body' data.
4647 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4648 [Massimo Santin via Richard Levitte]
4650 *) Major restructuring to the underlying ENGINE code. This includes
4651 reduction of linker bloat, separation of pure "ENGINE" manipulation
4652 (initialisation, etc) from functionality dealing with implementations
4653 of specific crypto iterfaces. This change also introduces integrated
4654 support for symmetric ciphers and digest implementations - so ENGINEs
4655 can now accelerate these by providing EVP_CIPHER and EVP_MD
4656 implementations of their own. This is detailed in crypto/engine/README
4657 as it couldn't be adequately described here. However, there are a few
4658 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4659 were changed in the original introduction of ENGINE code have now
4660 reverted back - the hooking from this code to ENGINE is now a good
4661 deal more passive and at run-time, operations deal directly with
4662 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4663 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4664 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4665 they were not being used by the framework as there is no concept of a
4666 BIGNUM_METHOD and they could not be generalised to the new
4667 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4668 ENGINE_cpy() has been removed as it cannot be consistently defined in
4672 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4675 *) Change mkdef.pl to sort symbols that get the same entry number,
4676 and make sure the automatically generated functions ERR_load_*
4677 become part of libeay.num as well.
4680 *) New function SSL_renegotiate_pending(). This returns true once
4681 renegotiation has been requested (either SSL_renegotiate() call
4682 or HelloRequest/ClientHello receveived from the peer) and becomes
4683 false once a handshake has been completed.
4684 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4685 sends a HelloRequest, but does not ensure that a handshake takes
4686 place. SSL_renegotiate_pending() is useful for checking if the
4687 client has followed the request.)
4690 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4691 By default, clients may request session resumption even during
4692 renegotiation (if session ID contexts permit); with this option,
4693 session resumption is possible only in the first handshake.
4695 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4696 more bits available for options that should not be part of
4697 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4700 *) Add some demos for certificate and certificate request creation.
4703 *) Make maximum certificate chain size accepted from the peer application
4704 settable (SSL*_get/set_max_cert_list()), as proposed by
4705 "Douglas E. Engert" <deengert@anl.gov>.
4708 *) Add support for shared libraries for Unixware-7
4709 (Boyd Lynn Gerber <gerberb@zenez.com>).
4712 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4713 be done prior to destruction. Use this to unload error strings from
4714 ENGINEs that load their own error strings. NB: This adds two new API
4715 functions to "get" and "set" this destroy handler in an ENGINE.
4718 *) Alter all existing ENGINE implementations (except "openssl" and
4719 "openbsd") to dynamically instantiate their own error strings. This
4720 makes them more flexible to be built both as statically-linked ENGINEs
4721 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4722 Also, add stub code to each that makes building them as self-contained
4723 shared-libraries easier (see README.ENGINE).
4726 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4727 implementations into applications that are completely implemented in
4728 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4729 commands that can be used to configure what shared-library to load and
4730 to control aspects of the way it is handled. Also, made an update to
4731 the README.ENGINE file that brings its information up-to-date and
4732 provides some information and instructions on the "dynamic" ENGINE
4733 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4736 *) Make it possible to unload ranges of ERR strings with a new
4737 "ERR_unload_strings" function.
4740 *) Add a copy() function to EVP_MD.
4743 *) Make EVP_MD routines take a context pointer instead of just the
4744 md_data void pointer.
4747 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4748 that the digest can only process a single chunk of data
4749 (typically because it is provided by a piece of
4750 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4751 is only going to provide a single chunk of data, and hence the
4752 framework needn't accumulate the data for oneshot drivers.
4755 *) As with "ERR", make it possible to replace the underlying "ex_data"
4756 functions. This change also alters the storage and management of global
4757 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4758 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4759 index counters. The API functions that use this state have been changed
4760 to take a "class_index" rather than pointers to the class's local STACK
4761 and counter, and there is now an API function to dynamically create new
4762 classes. This centralisation allows us to (a) plug a lot of the
4763 thread-safety problems that existed, and (b) makes it possible to clean
4764 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4765 such data would previously have always leaked in application code and
4766 workarounds were in place to make the memory debugging turn a blind eye
4767 to it. Application code that doesn't use this new function will still
4768 leak as before, but their memory debugging output will announce it now
4769 rather than letting it slide.
4771 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4772 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4773 has a return value to indicate success or failure.
4776 *) Make it possible to replace the underlying "ERR" functions such that the
4777 global state (2 LHASH tables and 2 locks) is only used by the "default"
4778 implementation. This change also adds two functions to "get" and "set"
4779 the implementation prior to it being automatically set the first time
4780 any other ERR function takes place. Ie. an application can call "get",
4781 pass the return value to a module it has just loaded, and that module
4782 can call its own "set" function using that value. This means the
4783 module's "ERR" operations will use (and modify) the error state in the
4784 application and not in its own statically linked copy of OpenSSL code.
4787 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4788 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4789 the operation, and provides a more encapsulated way for external code
4790 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4791 to use these functions rather than manually incrementing the counts.
4793 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4796 *) Add EVP test program.
4799 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4802 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4803 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4804 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4805 These allow a CRL to be built without having to access X509_CRL fields
4806 directly. Modify 'ca' application to use new functions.
4809 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4810 bug workarounds. Rollback attack detection is a security feature.
4811 The problem will only arise on OpenSSL servers when TLSv1 is not
4812 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4813 Software authors not wanting to support TLSv1 will have special reasons
4814 for their choice and can explicitly enable this option.
4815 [Bodo Moeller, Lutz Jaenicke]
4817 *) Rationalise EVP so it can be extended: don't include a union of
4818 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4819 (similar to those existing for EVP_CIPHER_CTX).
4824 EVP_MD_CTX_init(&md); /* new function call */
4825 EVP_DigestInit(&md, EVP_sha1());
4826 EVP_DigestUpdate(&md, in, len);
4827 EVP_DigestFinal(&md, out, NULL);
4828 EVP_MD_CTX_cleanup(&md); /* new function call */
4832 *) Make DES key schedule conform to the usual scheme, as well as
4833 correcting its structure. This means that calls to DES functions
4834 now have to pass a pointer to a des_key_schedule instead of a
4835 plain des_key_schedule (which was actually always a pointer
4838 des_key_schedule ks;
4840 des_set_key_checked(..., &ks);
4841 des_ncbc_encrypt(..., &ks, ...);
4843 (Note that a later change renames 'des_...' into 'DES_...'.)
4846 *) Initial reduction of linker bloat: the use of some functions, such as
4847 PEM causes large amounts of unused functions to be linked in due to
4848 poor organisation. For example pem_all.c contains every PEM function
4849 which has a knock on effect of linking in large amounts of (unused)
4850 ASN1 code. Grouping together similar functions and splitting unrelated
4851 functions prevents this.
4854 *) Cleanup of EVP macros.
4857 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4858 correct _ecb suffix.
4861 *) Add initial OCSP responder support to ocsp application. The
4862 revocation information is handled using the text based index
4863 use by the ca application. The responder can either handle
4864 requests generated internally, supplied in files (for example
4865 via a CGI script) or using an internal minimal server.
4868 *) Add configuration choices to get zlib compression for TLS.
4871 *) Changes to Kerberos SSL for RFC 2712 compliance:
4872 1. Implemented real KerberosWrapper, instead of just using
4873 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4874 2. Implemented optional authenticator field of KerberosWrapper.
4876 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4877 and authenticator structs; see crypto/krb5/.
4879 Generalized Kerberos calls to support multiple Kerberos libraries.
4880 [Vern Staats <staatsvr@asc.hpc.mil>,
4881 Jeffrey Altman <jaltman@columbia.edu>
4882 via Richard Levitte]
4884 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4885 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4886 values for each of the key sizes rather than having just
4887 parameters (and 'speed' generating keys each time).
4890 *) Speed up EVP routines.
4893 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4894 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4895 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4896 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4898 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4899 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4900 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4903 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4905 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4908 *) Added the OS2-EMX target.
4909 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4911 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4912 to support NCONF routines in extension code. New function CONF_set_nconf()
4913 to allow functions which take an NCONF to also handle the old LHASH
4914 structure: this means that the old CONF compatible routines can be
4915 retained (in particular wrt extensions) without having to duplicate the
4916 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4919 *) Enhance the general user interface with mechanisms for inner control
4920 and with possibilities to have yes/no kind of prompts.
4923 *) Change all calls to low level digest routines in the library and
4924 applications to use EVP. Add missing calls to HMAC_cleanup() and
4925 don't assume HMAC_CTX can be copied using memcpy().
4926 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4928 *) Add the possibility to control engines through control names but with
4929 arbitrary arguments instead of just a string.
4930 Change the key loaders to take a UI_METHOD instead of a callback
4931 function pointer. NOTE: this breaks binary compatibility with earlier
4932 versions of OpenSSL [engine].
4933 Adapt the nCipher code for these new conditions and add a card insertion
4937 *) Enhance the general user interface with mechanisms to better support
4938 dialog box interfaces, application-defined prompts, the possibility
4939 to use defaults (for example default passwords from somewhere else)
4940 and interrupts/cancellations.
4943 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4944 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4947 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4948 tidy up some unnecessarily weird code in 'sk_new()').
4949 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4951 *) Change the key loading routines for ENGINEs to use the same kind
4952 callback (pem_password_cb) as all other routines that need this
4956 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4957 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4958 than this minimum value is recommended.
4961 *) New random seeder for OpenVMS, using the system process statistics
4962 that are easily reachable.
4965 *) Windows apparently can't transparently handle global
4966 variables defined in DLLs. Initialisations such as:
4968 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4970 wont compile. This is used by the any applications that need to
4971 declare their own ASN1 modules. This was fixed by adding the option
4972 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4973 needed for static libraries under Win32.
4976 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4977 setting of purpose and trust fields. New X509_STORE trust and
4978 purpose functions and tidy up setting in other SSL functions.
4981 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4982 structure. These are inherited by X509_STORE_CTX when it is
4983 initialised. This allows various defaults to be set in the
4984 X509_STORE structure (such as flags for CRL checking and custom
4985 purpose or trust settings) for functions which only use X509_STORE_CTX
4986 internally such as S/MIME.
4988 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4989 trust settings if they are not set in X509_STORE. This allows X509_STORE
4990 purposes and trust (in S/MIME for example) to override any set by default.
4992 Add command line options for CRL checking to smime, s_client and s_server
4996 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4997 are set then the CRL is looked up in the X509_STORE structure and
4998 its validity and signature checked, then if the certificate is found
4999 in the CRL the verify fails with a revoked error.
5001 Various new CRL related callbacks added to X509_STORE_CTX structure.
5003 Command line options added to 'verify' application to support this.
5005 This needs some additional work, such as being able to handle multiple
5006 CRLs with different times, extension based lookup (rather than just
5007 by subject name) and ultimately more complete V2 CRL extension
5011 *) Add a general user interface API (crypto/ui/). This is designed
5012 to replace things like des_read_password and friends (backward
5013 compatibility functions using this new API are provided).
5014 The purpose is to remove prompting functions from the DES code
5015 section as well as provide for prompting through dialog boxes in
5016 a window system and the like.
5019 *) Add "ex_data" support to ENGINE so implementations can add state at a
5020 per-structure level rather than having to store it globally.
5023 *) Make it possible for ENGINE structures to be copied when retrieved by
5024 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5025 This causes the "original" ENGINE structure to act like a template,
5026 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5027 operational state can be localised to each ENGINE structure, despite the
5028 fact they all share the same "methods". New ENGINE structures returned in
5029 this case have no functional references and the return value is the single
5030 structural reference. This matches the single structural reference returned
5031 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5035 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5036 needs to match any other type at all we need to manually clear the
5040 *) Changes to the "openssl engine" utility to include;
5041 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5042 about an ENGINE's available control commands.
5043 - executing control commands from command line arguments using the
5044 '-pre' and '-post' switches. '-post' is only used if '-t' is
5045 specified and the ENGINE is successfully initialised. The syntax for
5046 the individual commands are colon-separated, for example;
5047 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5050 *) New dynamic control command support for ENGINEs. ENGINEs can now
5051 declare their own commands (numbers), names (strings), descriptions,
5052 and input types for run-time discovery by calling applications. A
5053 subset of these commands are implicitly classed as "executable"
5054 depending on their input type, and only these can be invoked through
5055 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5056 can be based on user input, config files, etc). The distinction is
5057 that "executable" commands cannot return anything other than a boolean
5058 result and can only support numeric or string input, whereas some
5059 discoverable commands may only be for direct use through
5060 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5061 pointers, or other custom uses. The "executable" commands are to
5062 support parameterisations of ENGINE behaviour that can be
5063 unambiguously defined by ENGINEs and used consistently across any
5064 OpenSSL-based application. Commands have been added to all the
5065 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5066 control over shared-library paths without source code alterations.
5069 *) Changed all ENGINE implementations to dynamically allocate their
5070 ENGINEs rather than declaring them statically. Apart from this being
5071 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5072 this also allows the implementations to compile without using the
5073 internal engine_int.h header.
5076 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5077 'const' value. Any code that should be able to modify a RAND_METHOD
5078 should already have non-const pointers to it (ie. they should only
5079 modify their own ones).
5082 *) Made a variety of little tweaks to the ENGINE code.
5083 - "atalla" and "ubsec" string definitions were moved from header files
5084 to C code. "nuron" string definitions were placed in variables
5085 rather than hard-coded - allowing parameterisation of these values
5086 later on via ctrl() commands.
5087 - Removed unused "#if 0"'d code.
5088 - Fixed engine list iteration code so it uses ENGINE_free() to release
5089 structural references.
5090 - Constified the RAND_METHOD element of ENGINE structures.
5091 - Constified various get/set functions as appropriate and added
5092 missing functions (including a catch-all ENGINE_cpy that duplicates
5093 all ENGINE values onto a new ENGINE except reference counts/state).
5094 - Removed NULL parameter checks in get/set functions. Setting a method
5095 or function to NULL is a way of cancelling out a previously set
5096 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5097 and doesn't justify the extra error symbols and code.
5098 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5099 flags from engine_int.h to engine.h.
5100 - Changed prototypes for ENGINE handler functions (init(), finish(),
5101 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5104 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5105 to the algorithm using long division. The binary algorithm can be
5106 used only if the modulus is odd. On 32-bit systems, it is faster
5107 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5108 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5109 up to 450 bits. In 64-bit environments, the binary algorithm
5110 appears to be advantageous for much longer moduli; here we use it
5111 for moduli up to 2048 bits.
5114 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5115 could not support the combine flag in choice fields.
5118 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5119 extensions from a certificate request to the certificate.
5122 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5123 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5124 file: this allows the display of the certificate about to be
5125 signed to be customised, to allow certain fields to be included
5126 or excluded and extension details. The old system didn't display
5127 multicharacter strings properly, omitted fields not in the policy
5128 and couldn't display additional details such as extensions.
5131 *) Function EC_POINTs_mul for multiple scalar multiplication
5132 of an arbitrary number of elliptic curve points
5133 \sum scalars[i]*points[i],
5134 optionally including the generator defined for the EC_GROUP:
5135 scalar*generator + \sum scalars[i]*points[i].
5137 EC_POINT_mul is a simple wrapper function for the typical case
5138 that the point list has just one item (besides the optional
5142 *) First EC_METHODs for curves over GF(p):
5144 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5145 operations and provides various method functions that can also
5146 operate with faster implementations of modular arithmetic.
5148 EC_GFp_mont_method() reuses most functions that are part of
5149 EC_GFp_simple_method, but uses Montgomery arithmetic.
5151 [Bodo Moeller; point addition and point doubling
5152 implementation directly derived from source code provided by
5153 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5155 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5156 crypto/ec/ec_lib.c):
5158 Curves are EC_GROUP objects (with an optional group generator)
5159 based on EC_METHODs that are built into the library.
5161 Points are EC_POINT objects based on EC_GROUP objects.
5163 Most of the framework would be able to handle curves over arbitrary
5164 finite fields, but as there are no obvious types for fields other
5165 than GF(p), some functions are limited to that for now.
5168 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5169 that the file contains a complete HTTP response.
5172 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5173 change the def and num file printf format specifier from "%-40sXXX"
5174 to "%-39s XXX". The latter will always guarantee a space after the
5175 field while the former will cause them to run together if the field
5176 is 40 of more characters long.
5179 *) Constify the cipher and digest 'method' functions and structures
5180 and modify related functions to take constant EVP_MD and EVP_CIPHER
5184 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5185 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5188 *) Modify EVP_Digest*() routines so they now return values. Although the
5189 internal software routines can never fail additional hardware versions
5193 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5195 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5196 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5199 ERR_R_NESTED_ASN1_ERROR
5201 ERR_R_MISSING_ASN1_EOS
5202 were 4 .. 9, conflicting with
5203 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5205 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5206 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5208 Add new error code 'ERR_R_INTERNAL_ERROR'.
5211 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5215 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5216 sets the subject name for a new request or supersedes the
5217 subject name in a given request. Formats that can be parsed are
5218 'CN=Some Name, OU=myOU, C=IT'
5220 'CN=Some Name/OU=myOU/C=IT'.
5222 Add options '-batch' and '-verbose' to 'openssl req'.
5223 [Massimiliano Pala <madwolf@hackmasters.net>]
5225 *) Introduce the possibility to access global variables through
5226 functions on platform were that's the best way to handle exporting
5227 global variables in shared libraries. To enable this functionality,
5228 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5229 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5230 is normally done by Configure or something similar).
5232 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5233 in the source file (foo.c) like this:
5235 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5236 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5238 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5239 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5241 OPENSSL_DECLARE_GLOBAL(int,foo);
5242 #define foo OPENSSL_GLOBAL_REF(foo)
5243 OPENSSL_DECLARE_GLOBAL(double,bar);
5244 #define bar OPENSSL_GLOBAL_REF(bar)
5246 The #defines are very important, and therefore so is including the
5247 header file everywhere where the defined globals are used.
5249 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5250 of ASN.1 items, but that structure is a bit different.
5252 The largest change is in util/mkdef.pl which has been enhanced with
5253 better and easier to understand logic to choose which symbols should
5254 go into the Windows .def files as well as a number of fixes and code
5255 cleanup (among others, algorithm keywords are now sorted
5256 lexicographically to avoid constant rewrites).
5259 *) In BN_div() keep a copy of the sign of 'num' before writing the
5260 result to 'rm' because if rm==num the value will be overwritten
5261 and produce the wrong result if 'num' is negative: this caused
5262 problems with BN_mod() and BN_nnmod().
5265 *) Function OCSP_request_verify(). This checks the signature on an
5266 OCSP request and verifies the signer certificate. The signer
5267 certificate is just checked for a generic purpose and OCSP request
5271 *) Add OCSP_check_validity() function to check the validity of OCSP
5272 responses. OCSP responses are prepared in real time and may only
5273 be a few seconds old. Simply checking that the current time lies
5274 between thisUpdate and nextUpdate max reject otherwise valid responses
5275 caused by either OCSP responder or client clock inaccuracy. Instead
5276 we allow thisUpdate and nextUpdate to fall within a certain period of
5277 the current time. The age of the response can also optionally be
5278 checked. Two new options -validity_period and -status_age added to
5282 *) If signature or public key algorithm is unrecognized print out its
5283 OID rather that just UNKNOWN.
5286 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5287 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5288 ID to be generated from the issuer certificate alone which can then be
5289 passed to OCSP_id_issuer_cmp().
5292 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5293 ASN1 modules to export functions returning ASN1_ITEM pointers
5294 instead of the ASN1_ITEM structures themselves. This adds several
5295 new macros which allow the underlying ASN1 function/structure to
5296 be accessed transparently. As a result code should not use ASN1_ITEM
5297 references directly (such as &X509_it) but instead use the relevant
5298 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5299 use of the new ASN1 code on platforms where exporting structures
5300 is problematical (for example in shared libraries) but exporting
5301 functions returning pointers to structures is not.
5304 *) Add support for overriding the generation of SSL/TLS session IDs.
5305 These callbacks can be registered either in an SSL_CTX or per SSL.
5306 The purpose of this is to allow applications to control, if they wish,
5307 the arbitrary values chosen for use as session IDs, particularly as it
5308 can be useful for session caching in multiple-server environments. A
5309 command-line switch for testing this (and any client code that wishes
5310 to use such a feature) has been added to "s_server".
5311 [Geoff Thorpe, Lutz Jaenicke]
5313 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5314 of the form '#if defined(...) || defined(...) || ...' and
5315 '#if !defined(...) && !defined(...) && ...'. This also avoids
5316 the growing number of special cases it was previously handling.
5319 *) Make all configuration macros available for application by making
5320 sure they are available in opensslconf.h, by giving them names starting
5321 with "OPENSSL_" to avoid conflicts with other packages and by making
5322 sure e_os2.h will cover all platform-specific cases together with
5324 Additionally, it is now possible to define configuration/platform-
5325 specific names (called "system identities"). In the C code, these
5326 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5327 macro with the name beginning with "OPENSSL_SYS_", which is determined
5328 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5332 *) New option -set_serial to 'req' and 'x509' this allows the serial
5333 number to use to be specified on the command line. Previously self
5334 signed certificates were hard coded with serial number 0 and the
5335 CA options of 'x509' had to use a serial number in a file which was
5339 *) New options to 'ca' utility to support V2 CRL entry extensions.
5340 Currently CRL reason, invalidity date and hold instruction are
5341 supported. Add new CRL extensions to V3 code and some new objects.
5344 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5345 disable standard block padding (aka PKCS#5 padding) in the EVP
5346 API, which was previously mandatory. This means that the data is
5347 not padded in any way and so the total length much be a multiple
5348 of the block size, otherwise an error occurs.
5351 *) Initial (incomplete) OCSP SSL support.
5354 *) New function OCSP_parse_url(). This splits up a URL into its host,
5355 port and path components: primarily to parse OCSP URLs. New -url
5356 option to ocsp utility.
5359 *) New nonce behavior. The return value of OCSP_check_nonce() now
5360 reflects the various checks performed. Applications can decide
5361 whether to tolerate certain situations such as an absent nonce
5362 in a response when one was present in a request: the ocsp application
5363 just prints out a warning. New function OCSP_add1_basic_nonce()
5364 this is to allow responders to include a nonce in a response even if
5365 the request is nonce-less.
5368 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5369 skipped when using openssl x509 multiple times on a single input file,
5370 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5373 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5374 set string type: to handle setting ASN1_TIME structures. Fix ca
5375 utility to correctly initialize revocation date of CRLs.
5378 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5379 the clients preferred ciphersuites and rather use its own preferences.
5380 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5381 Internet Explorer by ensuring unchanged hash method during stepup.
5382 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5385 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5386 to aes and add a new 'exist' option to print out symbols that don't
5390 *) Additional options to ocsp utility to allow flags to be set and
5391 additional certificates supplied.
5394 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5395 OCSP client a number of certificate to only verify the response
5399 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5400 handle the new API. Currently only ECB, CBC modes supported. Add new
5403 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5404 Encryption Standard (AES) Ciphersuites for Transport Layer
5405 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5406 not enabled by default and were not part of the "ALL" ciphersuite
5407 alias because they were not yet official; they could be
5408 explicitly requested by specifying the "AESdraft" ciphersuite
5409 group alias. In the final release of OpenSSL 0.9.7, the group
5410 alias is called "AES" and is part of "ALL".)
5411 [Ben Laurie, Steve Henson, Bodo Moeller]
5413 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5414 request to response.
5417 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5418 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5419 extract information from a certificate request. OCSP_response_create()
5420 creates a response and optionally adds a basic response structure.
5421 OCSP_basic_add1_status() adds a complete single response to a basic
5422 response and returns the OCSP_SINGLERESP structure just added (to allow
5423 extensions to be included for example). OCSP_basic_add1_cert() adds a
5424 certificate to a basic response and OCSP_basic_sign() signs a basic
5425 response with various flags. New helper functions ASN1_TIME_check()
5426 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5427 (converts ASN1_TIME to GeneralizedTime).
5430 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5431 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5432 structure from a certificate. X509_pubkey_digest() digests the public_key
5433 contents: this is used in various key identifiers.
5436 *) Make sk_sort() tolerate a NULL argument.
5437 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5439 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5440 passed by the function are trusted implicitly. If any of them signed the
5441 response then it is assumed to be valid and is not verified.
5444 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5445 to data. This was previously part of the PKCS7 ASN1 code. This
5446 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5447 [Steve Henson, reported by Kenneth R. Robinette
5448 <support@securenetterm.com>]
5450 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5451 routines: without these tracing memory leaks is very painful.
5452 Fix leaks in PKCS12 and PKCS7 routines.
5455 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5456 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5457 effectively meant GeneralizedTime would never be used. Now it
5458 is initialised to -1 but X509_time_adj() now has to check the value
5459 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5460 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5461 [Steve Henson, reported by Kenneth R. Robinette
5462 <support@securenetterm.com>]
5464 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5465 result in a zero length in the ASN1_INTEGER structure which was
5466 not consistent with the structure when d2i_ASN1_INTEGER() was used
5467 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5468 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5469 where it did not print out a minus for negative ASN1_INTEGER.
5472 *) Add summary printout to ocsp utility. The various functions which
5473 convert status values to strings have been renamed to:
5474 OCSP_response_status_str(), OCSP_cert_status_str() and
5475 OCSP_crl_reason_str() and are no longer static. New options
5476 to verify nonce values and to disable verification. OCSP response
5477 printout format cleaned up.
5480 *) Add additional OCSP certificate checks. These are those specified
5481 in RFC2560. This consists of two separate checks: the CA of the
5482 certificate being checked must either be the OCSP signer certificate
5483 or the issuer of the OCSP signer certificate. In the latter case the
5484 OCSP signer certificate must contain the OCSP signing extended key
5485 usage. This check is performed by attempting to match the OCSP
5486 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5487 in the OCSP_CERTID structures of the response.
5490 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5491 and related routines. This uses the standard OpenSSL certificate
5492 verify routines to perform initial checks (just CA validity) and
5493 to obtain the certificate chain. Then additional checks will be
5494 performed on the chain. Currently the root CA is checked to see
5495 if it is explicitly trusted for OCSP signing. This is used to set
5496 a root CA as a global signing root: that is any certificate that
5497 chains to that CA is an acceptable OCSP signing certificate.
5500 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5501 extensions from a separate configuration file.
5502 As when reading extensions from the main configuration file,
5503 the '-extensions ...' option may be used for specifying the
5505 [Massimiliano Pala <madwolf@comune.modena.it>]
5507 *) New OCSP utility. Allows OCSP requests to be generated or
5508 read. The request can be sent to a responder and the output
5509 parsed, outputed or printed in text form. Not complete yet:
5510 still needs to check the OCSP response validity.
5513 *) New subcommands for 'openssl ca':
5514 'openssl ca -status <serial>' prints the status of the cert with
5515 the given serial number (according to the index file).
5516 'openssl ca -updatedb' updates the expiry status of certificates
5518 [Massimiliano Pala <madwolf@comune.modena.it>]
5520 *) New '-newreq-nodes' command option to CA.pl. This is like
5521 '-newreq', but calls 'openssl req' with the '-nodes' option
5522 so that the resulting key is not encrypted.
5523 [Damien Miller <djm@mindrot.org>]
5525 *) New configuration for the GNU Hurd.
5526 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5528 *) Initial code to implement OCSP basic response verify. This
5529 is currently incomplete. Currently just finds the signer's
5530 certificate and verifies the signature on the response.
5533 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5534 value of OPENSSLDIR. This is available via the new '-d' option
5535 to 'openssl version', and is also included in 'openssl version -a'.
5538 *) Allowing defining memory allocation callbacks that will be given
5539 file name and line number information in additional arguments
5540 (a const char* and an int). The basic functionality remains, as
5541 well as the original possibility to just replace malloc(),
5542 realloc() and free() by functions that do not know about these
5543 additional arguments. To register and find out the current
5544 settings for extended allocation functions, the following
5545 functions are provided:
5547 CRYPTO_set_mem_ex_functions
5548 CRYPTO_set_locked_mem_ex_functions
5549 CRYPTO_get_mem_ex_functions
5550 CRYPTO_get_locked_mem_ex_functions
5552 These work the same way as CRYPTO_set_mem_functions and friends.
5553 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5554 extended allocation function is enabled.
5555 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5556 a conventional allocation function is enabled.
5557 [Richard Levitte, Bodo Moeller]
5559 *) Finish off removing the remaining LHASH function pointer casts.
5560 There should no longer be any prototype-casting required when using
5561 the LHASH abstraction, and any casts that remain are "bugs". See
5562 the callback types and macros at the head of lhash.h for details
5563 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5566 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5567 If /dev/[u]random devices are not available or do not return enough
5568 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5570 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5571 /etc/entropy will be queried once each in this sequence, quering stops
5572 when enough entropy was collected without querying more sockets.
5575 *) Change the Unix RAND_poll() variant to be able to poll several
5576 random devices, as specified by DEVRANDOM, until a sufficient amount
5577 of data has been collected. We spend at most 10 ms on each file
5578 (select timeout) and read in non-blocking mode. DEVRANDOM now
5579 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5580 (previously it was just the string "/dev/urandom"), so on typical
5581 platforms the 10 ms delay will never occur.
5582 Also separate out the Unix variant to its own file, rand_unix.c.
5583 For VMS, there's a currently-empty rand_vms.c.
5586 *) Move OCSP client related routines to ocsp_cl.c. These
5587 provide utility functions which an application needing
5588 to issue a request to an OCSP responder and analyse the
5589 response will typically need: as opposed to those which an
5590 OCSP responder itself would need which will be added later.
5592 OCSP_request_sign() signs an OCSP request with an API similar
5593 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5594 response. OCSP_response_get1_basic() extracts basic response
5595 from response. OCSP_resp_find_status(): finds and extracts status
5596 information from an OCSP_CERTID structure (which will be created
5597 when the request structure is built). These are built from lower
5598 level functions which work on OCSP_SINGLERESP structures but
5599 wont normally be used unless the application wishes to examine
5600 extensions in the OCSP response for example.
5602 Replace nonce routines with a pair of functions.
5603 OCSP_request_add1_nonce() adds a nonce value and optionally
5604 generates a random value. OCSP_check_nonce() checks the
5605 validity of the nonce in an OCSP response.
5608 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5609 This doesn't copy the supplied OCSP_CERTID and avoids the
5610 need to free up the newly created id. Change return type
5611 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5612 This can then be used to add extensions to the request.
5613 Deleted OCSP_request_new(), since most of its functionality
5614 is now in OCSP_REQUEST_new() (and the case insensitive name
5615 clash) apart from the ability to set the request name which
5616 will be added elsewhere.
5619 *) Update OCSP API. Remove obsolete extensions argument from
5620 various functions. Extensions are now handled using the new
5621 OCSP extension code. New simple OCSP HTTP function which
5622 can be used to send requests and parse the response.
5625 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5626 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5627 uses the special reorder version of SET OF to sort the attributes
5628 and reorder them to match the encoded order. This resolves a long
5629 standing problem: a verify on a PKCS7 structure just after signing
5630 it used to fail because the attribute order did not match the
5631 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5632 it uses the received order. This is necessary to tolerate some broken
5633 software that does not order SET OF. This is handled by encoding
5634 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5635 to produce the required SET OF.
5638 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5639 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5640 files to get correct declarations of the ASN.1 item variables.
5643 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5644 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5645 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5646 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5647 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5648 ASN1_ITEM and no wrapper functions.
5651 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5652 replace the old function pointer based I/O routines. Change most of
5653 the *_d2i_bio() and *_d2i_fp() functions to use these.
5656 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5657 lines, recognice more "algorithms" that can be deselected, and make
5658 it complain about algorithm deselection that isn't recognised.
5661 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5662 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5663 to use new functions. Add NO_ASN1_OLD which can be set to remove
5664 some old style ASN1 functions: this can be used to determine if old
5665 code will still work when these eventually go away.
5668 *) New extension functions for OCSP structures, these follow the
5669 same conventions as certificates and CRLs.
5672 *) New function X509V3_add1_i2d(). This automatically encodes and
5673 adds an extension. Its behaviour can be customised with various
5674 flags to append, replace or delete. Various wrappers added for
5675 certifcates and CRLs.
5678 *) Fix to avoid calling the underlying ASN1 print routine when
5679 an extension cannot be parsed. Correct a typo in the
5680 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5683 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5684 entries for variables.
5687 *) Add functionality to apps/openssl.c for detecting locking
5688 problems: As the program is single-threaded, all we have
5689 to do is register a locking callback using an array for
5690 storing which locks are currently held by the program.
5693 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5694 SSL_get_ex_data_X509_STORE_idx(), which is used in
5695 ssl_verify_cert_chain() and thus can be called at any time
5696 during TLS/SSL handshakes so that thread-safety is essential.
5697 Unfortunately, the ex_data design is not at all suited
5698 for multi-threaded use, so it probably should be abolished.
5701 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5702 [Broadcom, tweaked and integrated by Geoff Thorpe]
5704 *) Move common extension printing code to new function
5705 X509V3_print_extensions(). Reorganise OCSP print routines and
5706 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5709 *) New function X509_signature_print() to remove duplication in some
5713 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5714 set (this was treated exactly the same as SET OF previously). This
5715 is used to reorder the STACK representing the structure to match the
5716 encoding. This will be used to get round a problem where a PKCS7
5717 structure which was signed could not be verified because the STACK
5718 order did not reflect the encoded order.
5721 *) Reimplement the OCSP ASN1 module using the new code.
5724 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5725 for its ASN1 operations. The old style function pointers still exist
5726 for now but they will eventually go away.
5729 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5730 completely replaces the old ASN1 functionality with a table driven
5731 encoder and decoder which interprets an ASN1_ITEM structure describing
5732 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5733 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5734 has also been converted to the new form.
5737 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5738 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5739 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5740 for negative moduli.
5743 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5744 of not touching the result's sign bit.
5747 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5751 *) Changed the LHASH code to use prototypes for callbacks, and created
5752 macros to declare and implement thin (optionally static) functions
5753 that provide type-safety and avoid function pointer casting for the
5754 type-specific callbacks.
5757 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5759 [Veers Staats <staatsvr@asc.hpc.mil>,
5760 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5762 *) Reformat the FAQ so the different questions and answers can be divided
5763 in sections depending on the subject.
5766 *) Have the zlib compression code load ZLIB.DLL dynamically under
5770 *) New function BN_mod_sqrt for computing square roots modulo a prime
5771 (using the probabilistic Tonelli-Shanks algorithm unless
5772 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5773 be handled deterministically).
5774 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5776 *) Make BN_mod_inverse faster by explicitly handling small quotients
5777 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5778 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5781 *) New function BN_kronecker.
5784 *) Fix BN_gcd so that it works on negative inputs; the result is
5785 positive unless both parameters are zero.
5786 Previously something reasonably close to an infinite loop was
5787 possible because numbers could be growing instead of shrinking
5788 in the implementation of Euclid's algorithm.
5791 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5792 sign of the number in question.
5794 Fix BN_is_word(a,w) to work correctly for w == 0.
5796 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5797 because its test if the absolute value of 'a' equals 'w'.
5798 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5799 it exists mostly for use in the implementations of BN_is_zero(),
5800 BN_is_one(), and BN_is_word().
5803 *) New function BN_swap.
5806 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5807 the exponentiation functions are more likely to produce reasonable
5808 results on negative inputs.
5811 *) Change BN_mod_mul so that the result is always non-negative.
5812 Previously, it could be negative if one of the factors was negative;
5813 I don't think anyone really wanted that behaviour.
5816 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5817 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5818 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5819 and add new functions:
5828 BN_mod_lshift1_quick
5832 These functions always generate non-negative results.
5834 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5835 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5837 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5838 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5839 be reduced modulo m.
5840 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5843 The following entry accidentily appeared in the CHANGES file
5844 distributed with OpenSSL 0.9.7. The modifications described in
5845 it do *not* apply to OpenSSL 0.9.7.
5847 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5848 was actually never needed) and in BN_mul(). The removal in BN_mul()
5849 required a small change in bn_mul_part_recursive() and the addition
5850 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5851 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5852 bn_sub_words() and bn_add_words() except they take arrays with
5857 *) In 'openssl passwd', verify passwords read from the terminal
5858 unless the '-salt' option is used (which usually means that
5859 verification would just waste user's time since the resulting
5860 hash is going to be compared with some given password hash)
5861 or the new '-noverify' option is used.
5863 This is an incompatible change, but it does not affect
5864 non-interactive use of 'openssl passwd' (passwords on the command
5865 line, '-stdin' option, '-in ...' option) and thus should not
5869 *) Remove all references to RSAref, since there's no more need for it.
5872 *) Make DSO load along a path given through an environment variable
5873 (SHLIB_PATH) with shl_load().
5876 *) Constify the ENGINE code as a result of BIGNUM constification.
5877 Also constify the RSA code and most things related to it. In a
5878 few places, most notable in the depth of the ASN.1 code, ugly
5879 casts back to non-const were required (to be solved at a later
5883 *) Make it so the openssl application has all engines loaded by default.
5886 *) Constify the BIGNUM routines a little more.
5889 *) Add the following functions:
5891 ENGINE_load_cswift()
5893 ENGINE_load_atalla()
5895 ENGINE_load_builtin_engines()
5897 That way, an application can itself choose if external engines that
5898 are built-in in OpenSSL shall ever be used or not. The benefit is
5899 that applications won't have to be linked with libdl or other dso
5900 libraries unless it's really needed.
5902 Changed 'openssl engine' to load all engines on demand.
5903 Changed the engine header files to avoid the duplication of some
5904 declarations (they differed!).
5907 *) 'openssl engine' can now list capabilities.
5910 *) Better error reporting in 'openssl engine'.
5913 *) Never call load_dh_param(NULL) in s_server.
5916 *) Add engine application. It can currently list engines by name and
5917 identity, and test if they are actually available.
5920 *) Improve RPM specification file by forcing symbolic linking and making
5921 sure the installed documentation is also owned by root.root.
5922 [Damien Miller <djm@mindrot.org>]
5924 *) Give the OpenSSL applications more possibilities to make use of
5925 keys (public as well as private) handled by engines.
5928 *) Add OCSP code that comes from CertCo.
5931 *) Add VMS support for the Rijndael code.
5934 *) Added untested support for Nuron crypto accelerator.
5937 *) Add support for external cryptographic devices. This code was
5938 previously distributed separately as the "engine" branch.
5939 [Geoff Thorpe, Richard Levitte]
5941 *) Rework the filename-translation in the DSO code. It is now possible to
5942 have far greater control over how a "name" is turned into a filename
5943 depending on the operating environment and any oddities about the
5944 different shared library filenames on each system.
5947 *) Support threads on FreeBSD-elf in Configure.
5950 *) Fix for SHA1 assembly problem with MASM: it produces
5951 warnings about corrupt line number information when assembling
5952 with debugging information. This is caused by the overlapping
5954 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5957 NCONF_get_number() has no error checking at all. As a replacement,
5958 NCONF_get_number_e() is defined (_e for "error checking") and is
5959 promoted strongly. The old NCONF_get_number is kept around for
5960 binary backward compatibility.
5961 Make it possible for methods to load from something other than a BIO,
5962 by providing a function pointer that is given a name instead of a BIO.
5963 For example, this could be used to load configuration data from an
5967 *) Fix for non blocking accept BIOs. Added new I/O special reason
5968 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5969 with non blocking I/O was not possible because no retry code was
5970 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5974 *) Added the beginnings of Rijndael support.
5977 *) Fix for bug in DirectoryString mask setting. Add support for
5978 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5979 to allow certificate printing to more controllable, additional
5980 'certopt' option to 'x509' to allow new printing options to be
5984 *) Clean old EAY MD5 hack from e_os.h.
5987 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5989 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5990 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5991 [Joe Orton, Steve Henson]
5993 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5995 *) Fix additional bug revealed by the NISCC test suite:
5997 Stop bug triggering large recursion when presented with
5998 certain ASN.1 tags (CVE-2003-0851)
6001 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6003 *) Fix various bugs revealed by running the NISCC test suite:
6005 Stop out of bounds reads in the ASN1 code when presented with
6006 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6008 If verify callback ignores invalid public key errors don't try to check
6009 certificate signature with the NULL public key.
6013 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6014 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6018 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6019 extra data after the compression methods not only for TLS 1.0
6020 but also for SSL 3.0 (as required by the specification).
6021 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6023 *) Change X509_certificate_type() to mark the key as exported/exportable
6024 when it's 512 *bits* long, not 512 bytes.
6027 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6029 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6030 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6031 a protocol version number mismatch like a decryption error
6032 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6035 *) Turn on RSA blinding by default in the default implementation
6036 to avoid a timing attack. Applications that don't want it can call
6037 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6038 They would be ill-advised to do so in most cases.
6039 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6041 *) Change RSA blinding code so that it works when the PRNG is not
6042 seeded (in this case, the secret RSA exponent is abused as
6043 an unpredictable seed -- if it is not unpredictable, there
6044 is no point in blinding anyway). Make RSA blinding thread-safe
6045 by remembering the creator's thread ID in rsa->blinding and
6046 having all other threads use local one-time blinding factors
6047 (this requires more computation than sharing rsa->blinding, but
6048 avoids excessive locking; and if an RSA object is not shared
6049 between threads, blinding will still be very fast).
6052 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6054 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6055 via timing by performing a MAC computation even if incorrrect
6056 block cipher padding has been found. This is a countermeasure
6057 against active attacks where the attacker has to distinguish
6058 between bad padding and a MAC verification error. (CVE-2003-0078)
6060 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6061 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6062 Martin Vuagnoux (EPFL, Ilion)]
6064 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6066 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6067 memory from it's contents. This is done with a counter that will
6068 place alternating values in each byte. This can be used to solve
6069 two issues: 1) the removal of calls to memset() by highly optimizing
6070 compilers, and 2) cleansing with other values than 0, since those can
6071 be read through on certain media, for example a swap space on disk.
6074 *) Bugfix: client side session caching did not work with external caching,
6075 because the session->cipher setting was not restored when reloading
6076 from the external cache. This problem was masked, when
6077 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6078 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6081 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6082 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6083 [Zeev Lieber <zeev-l@yahoo.com>]
6085 *) Undo an undocumented change introduced in 0.9.6e which caused
6086 repeated calls to OpenSSL_add_all_ciphers() and
6087 OpenSSL_add_all_digests() to be ignored, even after calling
6091 *) Change the default configuration reader to deal with last line not
6092 being properly terminated.
6095 *) Change X509_NAME_cmp() so it applies the special rules on handling
6096 DN values that are of type PrintableString, as well as RDNs of type
6097 emailAddress where the value has the type ia5String.
6098 [stefank@valicert.com via Richard Levitte]
6100 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6101 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6102 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6103 the bitwise-OR of the two for use by the majority of applications
6104 wanting this behaviour, and update the docs. The documented
6105 behaviour and actual behaviour were inconsistent and had been
6106 changing anyway, so this is more a bug-fix than a behavioural
6108 [Geoff Thorpe, diagnosed by Nadav Har'El]
6110 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6111 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6114 *) Fix initialization code race conditions in
6115 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6116 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6117 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6118 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6119 ssl2_get_cipher_by_char(),
6120 ssl3_get_cipher_by_char().
6121 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6123 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6124 the cached sessions are flushed, as the remove_cb() might use ex_data
6125 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6126 (see [openssl.org #212]).
6127 [Geoff Thorpe, Lutz Jaenicke]
6129 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6130 length, instead of the encoding length to d2i_ASN1_OBJECT.
6133 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6135 *) [In 0.9.6g-engine release:]
6136 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6137 [Lynn Gazis <lgazis@rainbow.com>]
6139 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6141 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6142 and get fix the header length calculation.
6143 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6144 Alon Kantor <alonk@checkpoint.com> (and others),
6147 *) Use proper error handling instead of 'assertions' in buffer
6148 overflow checks added in 0.9.6e. This prevents DoS (the
6149 assertions could call abort()).
6150 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6152 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6154 *) Add various sanity checks to asn1_get_length() to reject
6155 the ASN1 length bytes if they exceed sizeof(long), will appear
6156 negative or the content length exceeds the length of the
6158 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6160 *) Fix cipher selection routines: ciphers without encryption had no flags
6161 for the cipher strength set and where therefore not handled correctly
6162 by the selection routines (PR #130).
6165 *) Fix EVP_dsa_sha macro.
6169 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6170 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6171 that was added in OpenSSL 0.9.6d.
6173 As the countermeasure turned out to be incompatible with some
6174 broken SSL implementations, the new option is part of SSL_OP_ALL.
6175 SSL_OP_ALL is usually employed when compatibility with weird SSL
6176 implementations is desired (e.g. '-bugs' option to 's_client' and
6177 's_server'), so the new option is automatically set in many
6181 *) Changes in security patch:
6183 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6184 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6185 Air Force Materiel Command, USAF, under agreement number
6188 *) Add various sanity checks to asn1_get_length() to reject
6189 the ASN1 length bytes if they exceed sizeof(long), will appear
6190 negative or the content length exceeds the length of the
6191 supplied buffer. (CVE-2002-0659)
6192 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6194 *) Assertions for various potential buffer overflows, not known to
6196 [Ben Laurie (CHATS)]
6198 *) Various temporary buffers to hold ASCII versions of integers were
6199 too small for 64 bit platforms. (CVE-2002-0655)
6200 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6202 *) Remote buffer overflow in SSL3 protocol - an attacker could
6203 supply an oversized session ID to a client. (CVE-2002-0656)
6204 [Ben Laurie (CHATS)]
6206 *) Remote buffer overflow in SSL2 protocol - an attacker could
6207 supply an oversized client master key. (CVE-2002-0656)
6208 [Ben Laurie (CHATS)]
6210 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6212 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6213 encoded as NULL) with id-dsa-with-sha1.
6214 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6216 *) Check various X509_...() return values in apps/req.c.
6217 [Nils Larsch <nla@trustcenter.de>]
6219 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6220 an end-of-file condition would erronously be flagged, when the CRLF
6221 was just at the end of a processed block. The bug was discovered when
6222 processing data through a buffering memory BIO handing the data to a
6223 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6224 <ptsekov@syntrex.com> and Nedelcho Stanev.
6227 *) Implement a countermeasure against a vulnerability recently found
6228 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6229 before application data chunks to avoid the use of known IVs
6230 with data potentially chosen by the attacker.
6233 *) Fix length checks in ssl3_get_client_hello().
6236 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6237 to prevent ssl3_read_internal() from incorrectly assuming that
6238 ssl3_read_bytes() found application data while handshake
6239 processing was enabled when in fact s->s3->in_read_app_data was
6240 merely automatically cleared during the initial handshake.
6241 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6243 *) Fix object definitions for Private and Enterprise: they were not
6244 recognized in their shortname (=lowercase) representation. Extend
6245 obj_dat.pl to issue an error when using undefined keywords instead
6246 of silently ignoring the problem (Svenning Sorensen
6247 <sss@sss.dnsalias.net>).
6250 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6251 generators, i.e. generators other than 2 and 5. (Previously, the
6252 code did not properly initialise the 'add' and 'rem' values to
6253 BN_generate_prime().)
6255 In the new general case, we do not insist that 'generator' is
6256 actually a primitive root: This requirement is rather pointless;
6257 a generator of the order-q subgroup is just as good, if not
6261 *) Map new X509 verification errors to alerts. Discovered and submitted by
6262 Tom Wu <tom@arcot.com>.
6265 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6266 returning non-zero before the data has been completely received
6267 when using non-blocking I/O.
6268 [Bodo Moeller; problem pointed out by John Hughes]
6270 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6271 [Ben Laurie, Lutz Jaenicke]
6273 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6274 Yoram Zahavi <YoramZ@gilian.com>).
6277 *) Add information about CygWin 1.3 and on, and preserve proper
6278 configuration for the versions before that.
6279 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6281 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6282 check whether we deal with a copy of a session and do not delete from
6283 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6284 <izhar@checkpoint.com>.
6287 *) Do not store session data into the internal session cache, if it
6288 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6289 flag is set). Proposed by Aslam <aslam@funk.com>.
6292 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6296 *) [In 0.9.6d-engine release:]
6297 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6298 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6300 *) Add the configuration target linux-s390x.
6301 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6303 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6304 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6305 variable as an indication that a ClientHello message has been
6306 received. As the flag value will be lost between multiple
6307 invocations of ssl3_accept when using non-blocking I/O, the
6308 function may not be aware that a handshake has actually taken
6309 place, thus preventing a new session from being added to the
6312 To avoid this problem, we now set s->new_session to 2 instead of
6313 using a local variable.
6314 [Lutz Jaenicke, Bodo Moeller]
6316 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6317 if the SSL_R_LENGTH_MISMATCH error is detected.
6318 [Geoff Thorpe, Bodo Moeller]
6320 *) New 'shared_ldflag' column in Configure platform table.
6323 *) Fix EVP_CIPHER_mode macro.
6324 ["Dan S. Camper" <dan@bti.net>]
6326 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6327 type, we must throw them away by setting rr->length to 0.
6328 [D P Chang <dpc@qualys.com>]
6330 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6332 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6333 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6334 worked incorrectly for those cases where range = 10..._2 and
6335 3*range is two bits longer than range.)
6338 *) Only add signing time to PKCS7 structures if it is not already
6342 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6343 OBJ_ld_ce should be OBJ_id_ce.
6344 Also some ip-pda OIDs in crypto/objects/objects.txt were
6345 incorrect (cf. RFC 3039).
6346 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6348 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6349 returns early because it has nothing to do.
6350 [Andy Schneider <andy.schneider@bjss.co.uk>]
6352 *) [In 0.9.6c-engine release:]
6353 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6354 [Andy Schneider <andy.schneider@bjss.co.uk>]
6356 *) [In 0.9.6c-engine release:]
6357 Add support for Cryptographic Appliance's keyserver technology.
6358 (Use engine 'keyclient')
6359 [Cryptographic Appliances and Geoff Thorpe]
6361 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6362 is called via tools/c89.sh because arguments have to be
6363 rearranged (all '-L' options must appear before the first object
6365 [Richard Shapiro <rshapiro@abinitio.com>]
6367 *) [In 0.9.6c-engine release:]
6368 Add support for Broadcom crypto accelerator cards, backported
6370 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6372 *) [In 0.9.6c-engine release:]
6373 Add support for SureWare crypto accelerator cards from
6374 Baltimore Technologies. (Use engine 'sureware')
6375 [Baltimore Technologies and Mark Cox]
6377 *) [In 0.9.6c-engine release:]
6378 Add support for crypto accelerator cards from Accelerated
6379 Encryption Processing, www.aep.ie. (Use engine 'aep')
6380 [AEP Inc. and Mark Cox]
6382 *) Add a configuration entry for gcc on UnixWare.
6383 [Gary Benson <gbenson@redhat.com>]
6385 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6386 messages are stored in a single piece (fixed-length part and
6387 variable-length part combined) and fix various bugs found on the way.
6390 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6391 instead. BIO_gethostbyname() does not know what timeouts are
6392 appropriate, so entries would stay in cache even when they have
6394 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6396 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6397 faced with a pathologically small ClientHello fragment that does
6398 not contain client_version: Instead of aborting with an error,
6399 simply choose the highest available protocol version (i.e.,
6400 TLS 1.0 unless it is disabled). In practice, ClientHello
6401 messages are never sent like this, but this change gives us
6402 strictly correct behaviour at least for TLS.
6405 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6406 never resets s->method to s->ctx->method when called from within
6407 one of the SSL handshake functions.
6408 [Bodo Moeller; problem pointed out by Niko Baric]
6410 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6411 (sent using the client's version number) if client_version is
6412 smaller than the protocol version in use. Also change
6413 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6414 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6415 the client will at least see that alert.
6418 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6422 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6423 client receives HelloRequest while in a handshake.
6424 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6426 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6427 should end in 'break', not 'goto end' which circuments various
6428 cleanups done in state SSL_ST_OK. But session related stuff
6429 must be disabled for SSL_ST_OK in the case that we just sent a
6432 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6433 before just sending a HelloRequest.
6434 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6436 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6437 reveal whether illegal block cipher padding was found or a MAC
6438 verification error occured. (Neither SSLerr() codes nor alerts
6439 are directly visible to potential attackers, but the information
6440 may leak via logfiles.)
6442 Similar changes are not required for the SSL 2.0 implementation
6443 because the number of padding bytes is sent in clear for SSL 2.0,
6444 and the extra bytes are just ignored. However ssl/s2_pkt.c
6445 failed to verify that the purported number of padding bytes is in
6449 *) Add OpenUNIX-8 support including shared libraries
6450 (Boyd Lynn Gerber <gerberb@zenez.com>).
6453 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6454 'wristwatch attack' using huge encoding parameters (cf.
6455 James H. Manger's CRYPTO 2001 paper). Note that the
6456 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6457 encoding parameters and hence was not vulnerable.
6460 *) BN_sqr() bug fix.
6461 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6463 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6464 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6465 followed by modular reduction.
6466 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6468 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6469 equivalent based on BN_pseudo_rand() instead of BN_rand().
6472 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6473 This function was broken, as the check for a new client hello message
6474 to handle SGC did not allow these large messages.
6475 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6478 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6481 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6482 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6485 *) Rework the configuration and shared library support for Tru64 Unix.
6486 The configuration part makes use of modern compiler features and
6487 still retains old compiler behavior for those that run older versions
6488 of the OS. The shared library support part includes a variant that
6489 uses the RPATH feature, and is available through the special
6490 configuration target "alpha-cc-rpath", which will never be selected
6492 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6494 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6495 with the same message size as in ssl3_get_certificate_request().
6496 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6497 messages might inadvertently be reject as too long.
6498 [Petr Lampa <lampa@fee.vutbr.cz>]
6500 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6503 *) Modified SSL library such that the verify_callback that has been set
6504 specificly for an SSL object with SSL_set_verify() is actually being
6505 used. Before the change, a verify_callback set with this function was
6506 ignored and the verify_callback() set in the SSL_CTX at the time of
6507 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6508 to allow the necessary settings.
6511 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6512 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6513 done automatically (in contradiction to the requirements of the C
6514 standard). This made problems when used from OpenSSH.
6517 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6518 dh->length and always used
6520 BN_rand_range(priv_key, dh->p).
6522 BN_rand_range() is not necessary for Diffie-Hellman, and this
6523 specific range makes Diffie-Hellman unnecessarily inefficient if
6524 dh->length (recommended exponent length) is much smaller than the
6525 length of dh->p. We could use BN_rand_range() if the order of
6526 the subgroup was stored in the DH structure, but we only have
6531 BN_rand(priv_key, l, ...)
6533 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6539 RSA_eay_public_encrypt
6540 RSA_eay_private_decrypt
6541 RSA_eay_private_encrypt (signing)
6542 RSA_eay_public_decrypt (signature verification)
6544 (default implementations for RSA_public_encrypt,
6545 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6546 always reject numbers >= n.
6549 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6550 to synchronize access to 'locking_thread'. This is necessary on
6551 systems where access to 'locking_thread' (an 'unsigned long'
6552 variable) is not atomic.
6555 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6556 *before* setting the 'crypto_lock_rand' flag. The previous code had
6557 a race condition if 0 is a valid thread ID.
6558 [Travis Vitek <vitek@roguewave.com>]
6560 *) Add support for shared libraries under Irix.
6561 [Albert Chin-A-Young <china@thewrittenword.com>]
6563 *) Add configuration option to build on Linux on both big-endian and
6565 [Ralf Baechle <ralf@uni-koblenz.de>]
6567 *) Add the possibility to create shared libraries on HP-UX.
6570 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6572 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6573 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6574 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6575 PRNG state recovery was possible based on the output of
6576 one PRNG request appropriately sized to gain knowledge on
6577 'md' followed by enough consecutive 1-byte PRNG requests
6578 to traverse all of 'state'.
6580 1. When updating 'md_local' (the current thread's copy of 'md')
6581 during PRNG output generation, hash all of the previous
6582 'md_local' value, not just the half used for PRNG output.
6584 2. Make the number of bytes from 'state' included into the hash
6585 independent from the number of PRNG bytes requested.
6587 The first measure alone would be sufficient to avoid
6588 Markku-Juhani's attack. (Actually it had never occurred
6589 to me that the half of 'md_local' used for chaining was the
6590 half from which PRNG output bytes were taken -- I had always
6591 assumed that the secret half would be used.) The second
6592 measure makes sure that additional data from 'state' is never
6593 mixed into 'md_local' in small portions; this heuristically
6594 further strengthens the PRNG.
6597 *) Fix crypto/bn/asm/mips3.s.
6600 *) When only the key is given to "enc", the IV is undefined. Print out
6601 an error message in this case.
6604 *) Handle special case when X509_NAME is empty in X509 printing routines.
6607 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6608 positive and less than q.
6611 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6612 used: it isn't thread safe and the add_lock_callback should handle
6614 [Paul Rose <Paul.Rose@bridge.com>]
6616 *) Verify that incoming data obeys the block size in
6617 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6621 [Ulf Möller, Bodo Möller]
6623 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6624 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6625 when fixing the server behaviour for backwards-compatible 'client
6626 hello' messages. (Note that the attack is impractical against
6627 SSL 3.0 and TLS 1.0 anyway because length and version checking
6628 means that the probability of guessing a valid ciphertext is
6629 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6632 Before 0.9.5, the countermeasure (hide the error by generating a
6633 random 'decryption result') did not work properly because
6634 ERR_clear_error() was missing, meaning that SSL_get_error() would
6635 detect the supposedly ignored error.
6637 Both problems are now fixed.
6640 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6641 (previously it was 1024).
6644 *) Fix for compatibility mode trust settings: ignore trust settings
6645 unless some valid trust or reject settings are present.
6648 *) Fix for blowfish EVP: its a variable length cipher.
6651 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6652 parameters in DSA public key structures and return an error in the
6653 DSA routines if parameters are absent.
6656 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6657 in the current directory if neither $RANDFILE nor $HOME was set.
6658 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6659 caused some confusion to Windows users who haven't defined $HOME.
6660 Thus RAND_file_name() is changed again: e_os.h can define a
6661 DEFAULT_HOME, which will be used if $HOME is not set.
6662 For Windows, we use "C:"; on other platforms, we still require
6663 environment variables.
6665 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6666 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6667 having multiple threads call RAND_poll() concurrently.
6670 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6671 combination of a flag and a thread ID variable.
6672 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6673 flag), *other* threads can enter ssleay_add_bytes without obeying
6674 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6675 that they do not hold after the first thread unsets add_do_not_lock).
6678 *) Change bctest again: '-x' expressions are not available in all
6682 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6684 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6685 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6687 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6688 the default extension for executables, if any. Also, make the perl
6689 scripts that use symlink() to test if it really exists and use "cp"
6690 if it doesn't. All this made OpenSSL compilable and installable in
6694 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6695 If SEQUENCE is length is indefinite just set c->slen to the total
6696 amount of data available.
6697 [Steve Henson, reported by shige@FreeBSD.org]
6698 [This change does not apply to 0.9.7.]
6700 *) Change bctest to avoid here-documents inside command substitution
6701 (workaround for FreeBSD /bin/sh bug).
6702 For compatibility with Ultrix, avoid shell functions (introduced
6703 in the bctest version that searches along $PATH).
6706 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6707 with des_encrypt() defined on some operating systems, like Solaris
6711 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6712 On the Importance of Eliminating Errors in Cryptographic
6713 Computations, J. Cryptology 14 (2001) 2, 101-119,
6714 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6717 *) MIPS assembler BIGNUM division bug fix.
6720 *) Disabled incorrect Alpha assembler code.
6723 *) Fix PKCS#7 decode routines so they correctly update the length
6724 after reading an EOC for the EXPLICIT tag.
6726 [This change does not apply to 0.9.7.]
6728 *) Fix bug in PKCS#12 key generation routines. This was triggered
6729 if a 3DES key was generated with a 0 initial byte. Include
6730 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6731 (but broken) behaviour.
6734 *) Enhance bctest to search for a working bc along $PATH and print
6736 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6738 *) Fix memory leaks in err.c: free err_data string if necessary;
6739 don't write to the wrong index in ERR_set_error_data.
6742 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6746 *) Replace rdtsc with _emit statements for VC++ version 5.
6747 [Jeremy Cooper <jeremy@baymoo.org>]
6749 *) Make it possible to reuse SSLv2 sessions.
6752 *) In copy_email() check for >= 0 as a return value for
6753 X509_NAME_get_index_by_NID() since 0 is a valid index.
6754 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6756 *) Avoid coredump with unsupported or invalid public keys by checking if
6757 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6758 PKCS7_verify() fails with non detached data.
6761 *) Don't use getenv in library functions when run as setuid/setgid.
6762 New function OPENSSL_issetugid().
6765 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6766 due to incorrect handling of multi-threading:
6768 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6770 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6772 3. Count how many times MemCheck_off() has been called so that
6773 nested use can be treated correctly. This also avoids
6774 inband-signalling in the previous code (which relied on the
6775 assumption that thread ID 0 is impossible).
6778 *) Add "-rand" option also to s_client and s_server.
6781 *) Fix CPU detection on Irix 6.x.
6782 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6783 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6785 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6788 [This change does not apply to 0.9.7.]
6790 *) Use the cached encoding of an X509_NAME structure rather than
6791 copying it. This is apparently the reason for the libsafe "errors"
6792 but the code is actually correct.
6795 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6796 Bleichenbacher's DSA attack.
6797 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6798 to be set and top=0 forces the highest bit to be set; top=-1 is new
6799 and leaves the highest bit random.
6800 [Ulf Moeller, Bodo Moeller]
6802 *) In the NCONF_...-based implementations for CONF_... queries
6803 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6804 a temporary CONF structure with the data component set to NULL
6805 (which gives segmentation faults in lh_retrieve).
6806 Instead, use NULL for the CONF pointer in CONF_get_string and
6807 CONF_get_number (which may use environment variables) and directly
6808 return NULL from CONF_get_section.
6811 *) Fix potential buffer overrun for EBCDIC.
6814 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6815 keyUsage if basicConstraints absent for a CA.
6818 *) Make SMIME_write_PKCS7() write mail header values with a format that
6819 is more generally accepted (no spaces before the semicolon), since
6820 some programs can't parse those values properly otherwise. Also make
6821 sure BIO's that break lines after each write do not create invalid
6825 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6826 macros previously used would not encode an empty SEQUENCE OF
6827 and break the signature.
6829 [This change does not apply to 0.9.7.]
6831 *) Zero the premaster secret after deriving the master secret in
6835 *) Add some EVP_add_digest_alias registrations (as found in
6836 OpenSSL_add_all_digests()) to SSL_library_init()
6837 aka OpenSSL_add_ssl_algorithms(). This provides improved
6838 compatibility with peers using X.509 certificates
6839 with unconventional AlgorithmIdentifier OIDs.
6842 *) Fix for Irix with NO_ASM.
6843 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6845 *) ./config script fixes.
6846 [Ulf Moeller, Richard Levitte]
6848 *) Fix 'openssl passwd -1'.
6851 *) Change PKCS12_key_gen_asc() so it can cope with non null
6852 terminated strings whose length is passed in the passlen
6853 parameter, for example from PEM callbacks. This was done
6854 by adding an extra length parameter to asc2uni().
6855 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6857 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6858 call failed, free the DSA structure.
6861 *) Fix to uni2asc() to cope with zero length Unicode strings.
6862 These are present in some PKCS#12 files.
6865 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6866 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6867 when writing a 32767 byte record.
6868 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6870 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6871 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6873 (RSA objects have a reference count access to which is protected
6874 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6875 so they are meant to be shared between threads.)
6876 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6877 "Reddie, Steven" <Steven.Reddie@ca.com>]
6879 *) Fix a deadlock in CRYPTO_mem_leaks().
6882 *) Use better test patterns in bntest.
6885 *) rand_win.c fix for Borland C.
6888 *) BN_rshift bugfix for n == 0.
6891 *) Add a 'bctest' script that checks for some known 'bc' bugs
6892 so that 'make test' does not abort just because 'bc' is broken.
6895 *) Store verify_result within SSL_SESSION also for client side to
6896 avoid potential security hole. (Re-used sessions on the client side
6897 always resulted in verify_result==X509_V_OK, not using the original
6898 result of the server certificate verification.)
6901 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6902 SSL3_RT_APPLICATION_DATA, return 0.
6903 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6907 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6908 releases, have been re-implemented by renaming the previous
6909 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6910 and ssl3_read_internal, respectively, and adding 'peek' parameters
6911 to them. The new ssl[23]_{read,peek} functions are calls to
6912 ssl[23]_read_internal with the 'peek' flag set appropriately.
6913 A 'peek' parameter has also been added to ssl3_read_bytes, which
6914 does the actual work for ssl3_read_internal.
6917 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6918 the method-specific "init()" handler. Also clean up ex_data after
6919 calling the method-specific "finish()" handler. Previously, this was
6920 happening the other way round.
6923 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6924 The previous value, 12, was not always sufficient for BN_mod_exp().
6927 *) Make sure that shared libraries get the internal name engine with
6928 the full version number and not just 0. This should mark the
6929 shared libraries as not backward compatible. Of course, this should
6930 be changed again when we can guarantee backward binary compatibility.
6933 *) Fix typo in get_cert_by_subject() in by_dir.c
6934 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6936 *) Rework the system to generate shared libraries:
6938 - Make note of the expected extension for the shared libraries and
6939 if there is a need for symbolic links from for example libcrypto.so.0
6940 to libcrypto.so.0.9.7. There is extended info in Configure for
6943 - Make as few rebuilds of the shared libraries as possible.
6945 - Still avoid linking the OpenSSL programs with the shared libraries.
6947 - When installing, install the shared libraries separately from the
6951 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6953 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6954 and not in SSL_clear because the latter is also used by the
6955 accept/connect functions; previously, the settings made by
6956 SSL_set_read_ahead would be lost during the handshake.
6957 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6959 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6960 Previously, it would create entries for disableed algorithms no
6964 *) Added several new manual pages for SSL_* function.
6967 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6969 *) In ssl23_get_client_hello, generate an error message when faced
6970 with an initial SSL 3.0/TLS record that is too small to contain the
6971 first two bytes of the ClientHello message, i.e. client_version.
6972 (Note that this is a pathologic case that probably has never happened
6973 in real life.) The previous approach was to use the version number
6974 from the record header as a substitute; but our protocol choice
6975 should not depend on that one because it is not authenticated
6976 by the Finished messages.
6979 *) More robust randomness gathering functions for Windows.
6980 [Jeffrey Altman <jaltman@columbia.edu>]
6982 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6983 not set then we don't setup the error code for issuer check errors
6984 to avoid possibly overwriting other errors which the callback does
6985 handle. If an application does set the flag then we assume it knows
6986 what it is doing and can handle the new informational codes
6990 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6991 a general "ANY" type, as such it should be able to decode anything
6992 including tagged types. However it didn't check the class so it would
6993 wrongly interpret tagged types in the same way as their universal
6994 counterpart and unknown types were just rejected. Changed so that the
6995 tagged and unknown types are handled in the same way as a SEQUENCE:
6996 that is the encoding is stored intact. There is also a new type
6997 "V_ASN1_OTHER" which is used when the class is not universal, in this
6998 case we have no idea what the actual type is so we just lump them all
7002 *) On VMS, stdout may very well lead to a file that is written to
7003 in a record-oriented fashion. That means that every write() will
7004 write a separate record, which will be read separately by the
7005 programs trying to read from it. This can be very confusing.
7007 The solution is to put a BIO filter in the way that will buffer
7008 text until a linefeed is reached, and then write everything a
7009 line at a time, so every record written will be an actual line,
7010 not chunks of lines and not (usually doesn't happen, but I've
7011 seen it once) several lines in one record. BIO_f_linebuffer() is
7014 Currently, it's a VMS-only method, because that's where it has
7015 been tested well enough.
7018 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7019 it can return incorrect results.
7020 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7021 but it was in 0.9.6-beta[12].)
7024 *) Disable the check for content being present when verifying detached
7025 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7026 include zero length content when signing messages.
7029 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7030 BIO_ctrl (for BIO pairs).
7033 *) Add DSO method for VMS.
7036 *) Bug fix: Montgomery multiplication could produce results with the
7040 *) Add RPM specification openssl.spec and modify it to build three
7041 packages. The default package contains applications, application
7042 documentation and run-time libraries. The devel package contains
7043 include files, static libraries and function documentation. The
7044 doc package contains the contents of the doc directory. The original
7045 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7048 *) Add a large number of documentation files for many SSL routines.
7049 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7051 *) Add a configuration entry for Sony News 4.
7052 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7054 *) Don't set the two most significant bits to one when generating a
7055 random number < q in the DSA library.
7058 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7059 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7060 the underlying transport is blocking) if a handshake took place.
7061 (The default behaviour is needed by applications such as s_client
7062 and s_server that use select() to determine when to use SSL_read;
7063 but for applications that know in advance when to expect data, it
7064 just makes things more complicated.)
7067 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7071 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7072 work better on such systems.
7073 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7075 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7076 Update PKCS12_parse() so it copies the friendlyName and the
7077 keyid to the certificates aux info.
7080 *) Fix bug in PKCS7_verify() which caused an infinite loop
7081 if there was more than one signature.
7082 [Sven Uszpelkat <su@celocom.de>]
7084 *) Major change in util/mkdef.pl to include extra information
7085 about each symbol, as well as presentig variables as well
7086 as functions. This change means that there's n more need
7087 to rebuild the .num files when some algorithms are excluded.
7090 *) Allow the verify time to be set by an application,
7091 rather than always using the current time.
7094 *) Phase 2 verify code reorganisation. The certificate
7095 verify code now looks up an issuer certificate by a
7096 number of criteria: subject name, authority key id
7097 and key usage. It also verifies self signed certificates
7098 by the same criteria. The main comparison function is
7099 X509_check_issued() which performs these checks.
7101 Lot of changes were necessary in order to support this
7102 without completely rewriting the lookup code.
7104 Authority and subject key identifier are now cached.
7106 The LHASH 'certs' is X509_STORE has now been replaced
7107 by a STACK_OF(X509_OBJECT). This is mainly because an
7108 LHASH can't store or retrieve multiple objects with
7109 the same hash value.
7111 As a result various functions (which were all internal
7112 use only) have changed to handle the new X509_STORE
7113 structure. This will break anything that messed round
7114 with X509_STORE internally.
7116 The functions X509_STORE_add_cert() now checks for an
7117 exact match, rather than just subject name.
7119 The X509_STORE API doesn't directly support the retrieval
7120 of multiple certificates matching a given criteria, however
7121 this can be worked round by performing a lookup first
7122 (which will fill the cache with candidate certificates)
7123 and then examining the cache for matches. This is probably
7124 the best we can do without throwing out X509_LOOKUP
7125 entirely (maybe later...).
7127 The X509_VERIFY_CTX structure has been enhanced considerably.
7129 All certificate lookup operations now go via a get_issuer()
7130 callback. Although this currently uses an X509_STORE it
7131 can be replaced by custom lookups. This is a simple way
7132 to bypass the X509_STORE hackery necessary to make this
7133 work and makes it possible to use more efficient techniques
7134 in future. A very simple version which uses a simple
7135 STACK for its trusted certificate store is also provided
7136 using X509_STORE_CTX_trusted_stack().
7138 The verify_cb() and verify() callbacks now have equivalents
7139 in the X509_STORE_CTX structure.
7141 X509_STORE_CTX also has a 'flags' field which can be used
7142 to customise the verify behaviour.
7145 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7146 excludes S/MIME capabilities.
7149 *) When a certificate request is read in keep a copy of the
7150 original encoding of the signed data and use it when outputing
7151 again. Signatures then use the original encoding rather than
7152 a decoded, encoded version which may cause problems if the
7153 request is improperly encoded.
7156 *) For consistency with other BIO_puts implementations, call
7157 buffer_write(b, ...) directly in buffer_puts instead of calling
7160 In BIO_puts, increment b->num_write as in BIO_write.
7161 [Peter.Sylvester@EdelWeb.fr]
7163 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7164 BN_zero, we may not return a BIGNUM with an array consisting of
7168 *) Avoid calling abort() from within the library when problems are
7169 detected, except if preprocessor symbols have been defined
7170 (such as REF_CHECK, BN_DEBUG etc.).
7173 *) New openssl application 'rsautl'. This utility can be
7174 used for low level RSA operations. DER public key
7175 BIO/fp routines also added.
7178 *) New Configure entry and patches for compiling on QNX 4.
7179 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7181 *) A demo state-machine implementation was sponsored by
7182 Nuron (http://www.nuron.com/) and is now available in
7183 demos/state_machine.
7186 *) New options added to the 'dgst' utility for signature
7187 generation and verification.
7190 *) Unrecognized PKCS#7 content types are now handled via a
7191 catch all ASN1_TYPE structure. This allows unsupported
7192 types to be stored as a "blob" and an application can
7193 encode and decode it manually.
7196 *) Fix various signed/unsigned issues to make a_strex.c
7198 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7200 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7201 length if passed a buffer. ASN1_INTEGER_to_BN failed
7202 if passed a NULL BN and its argument was negative.
7203 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7205 *) Modification to PKCS#7 encoding routines to output definite
7206 length encoding. Since currently the whole structures are in
7207 memory there's not real point in using indefinite length
7208 constructed encoding. However if OpenSSL is compiled with
7209 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7212 *) Added BIO_vprintf() and BIO_vsnprintf().
7215 *) Added more prefixes to parse for in the the strings written
7216 through a logging bio, to cover all the levels that are available
7217 through syslog. The prefixes are now:
7219 PANIC, EMERG, EMR => LOG_EMERG
7220 ALERT, ALR => LOG_ALERT
7221 CRIT, CRI => LOG_CRIT
7222 ERROR, ERR => LOG_ERR
7223 WARNING, WARN, WAR => LOG_WARNING
7224 NOTICE, NOTE, NOT => LOG_NOTICE
7225 INFO, INF => LOG_INFO
7226 DEBUG, DBG => LOG_DEBUG
7228 and as before, if none of those prefixes are present at the
7229 beginning of the string, LOG_ERR is chosen.
7231 On Win32, the LOG_* levels are mapped according to this:
7233 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7234 LOG_WARNING => EVENTLOG_WARNING_TYPE
7235 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7239 *) Made it possible to reconfigure with just the configuration
7240 argument "reconf" or "reconfigure". The command line arguments
7241 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7242 and are retrieved from there when reconfiguring.
7246 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7248 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7251 *) The obj_dat.pl script was messing up the sorting of object
7252 names. The reason was that it compared the quoted version
7253 of strings as a result "OCSP" > "OCSP Signing" because
7254 " > SPACE. Changed script to store unquoted versions of
7255 names and add quotes on output. It was also omitting some
7256 names from the lookup table if they were given a default
7257 value (that is if SN is missing it is given the same
7258 value as LN and vice versa), these are now added on the
7259 grounds that if an object has a name we should be able to
7260 look it up. Finally added warning output when duplicate
7261 short or long names are found.
7264 *) Changes needed for Tandem NSK.
7265 [Scott Uroff <scott@xypro.com>]
7267 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7268 RSA_padding_check_SSLv23(), special padding was never detected
7269 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7270 version rollback attacks was not effective.
7272 In s23_clnt.c, don't use special rollback-attack detection padding
7273 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7274 client; similarly, in s23_srvr.c, don't do the rollback check if
7275 SSL 2.0 is the only protocol enabled in the server.
7278 *) Make it possible to get hexdumps of unprintable data with 'openssl
7279 asn1parse'. By implication, the functions ASN1_parse_dump() and
7280 BIO_dump_indent() are added.
7283 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7284 these print out strings and name structures based on various
7285 flags including RFC2253 support and proper handling of
7286 multibyte characters. Added options to the 'x509' utility
7287 to allow the various flags to be set.
7290 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7291 Also change the functions X509_cmp_current_time() and
7292 X509_gmtime_adj() work with an ASN1_TIME structure,
7293 this will enable certificates using GeneralizedTime in validity
7294 dates to be checked.
7297 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7298 negative public key encodings) on by default,
7299 NO_NEG_PUBKEY_BUG can be set to disable it.
7302 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7303 content octets. An i2c_ASN1_OBJECT is unnecessary because
7304 the encoding can be trivially obtained from the structure.
7307 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7308 not read locks (CRYPTO_r_[un]lock).
7311 *) A first attempt at creating official support for shared
7312 libraries through configuration. I've kept it so the
7313 default is static libraries only, and the OpenSSL programs
7314 are always statically linked for now, but there are
7315 preparations for dynamic linking in place.
7316 This has been tested on Linux and Tru64.
7319 *) Randomness polling function for Win9x, as described in:
7320 Peter Gutmann, Software Generation of Practically Strong
7324 *) Fix so PRNG is seeded in req if using an already existing
7328 *) New options to smime application. -inform and -outform
7329 allow alternative formats for the S/MIME message including
7330 PEM and DER. The -content option allows the content to be
7331 specified separately. This should allow things like Netscape
7332 form signing output easier to verify.
7335 *) Fix the ASN1 encoding of tags using the 'long form'.
7338 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7339 STRING types. These convert content octets to and from the
7340 underlying type. The actual tag and length octets are
7341 already assumed to have been read in and checked. These
7342 are needed because all other string types have virtually
7343 identical handling apart from the tag. By having versions
7344 of the ASN1 functions that just operate on content octets
7345 IMPLICIT tagging can be handled properly. It also allows
7346 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7347 and ASN1_INTEGER are identical apart from the tag.
7350 *) Change the handling of OID objects as follows:
7352 - New object identifiers are inserted in objects.txt, following
7353 the syntax given in objects.README.
7354 - objects.pl is used to process obj_mac.num and create a new
7356 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7359 This is currently kind of a hack, and the perl code in objects.pl
7360 isn't very elegant, but it works as I intended. The simplest way
7361 to check that it worked correctly is to look in obj_dat.h and
7362 check the array nid_objs and make sure the objects haven't moved
7363 around (this is important!). Additions are OK, as well as
7364 consistent name changes.
7367 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7370 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7371 The given file adds to whatever has already been seeded into the
7372 random pool through the RANDFILE configuration file option or
7373 environment variable, or the default random state file.
7376 *) mkstack.pl now sorts each macro group into lexical order.
7377 Previously the output order depended on the order the files
7378 appeared in the directory, resulting in needless rewriting
7382 *) Patches to make OpenSSL compile under Win32 again. Mostly
7383 work arounds for the VC++ problem that it treats func() as
7384 func(void). Also stripped out the parts of mkdef.pl that
7385 added extra typesafe functions: these no longer exist.
7388 *) Reorganisation of the stack code. The macros are now all
7389 collected in safestack.h . Each macro is defined in terms of
7390 a "stack macro" of the form SKM_<name>(type, a, b). The
7391 DEBUG_SAFESTACK is now handled in terms of function casts,
7392 this has the advantage of retaining type safety without the
7393 use of additional functions. If DEBUG_SAFESTACK is not defined
7394 then the non typesafe macros are used instead. Also modified the
7395 mkstack.pl script to handle the new form. Needs testing to see
7396 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7397 the default if no major problems. Similar behaviour for ASN1_SET_OF
7398 and PKCS12_STACK_OF.
7401 *) When some versions of IIS use the 'NET' form of private key the
7402 key derivation algorithm is different. Normally MD5(password) is
7403 used as a 128 bit RC4 key. In the modified case
7404 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7405 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7406 as the old Netscape_RSA functions except they have an additional
7407 'sgckey' parameter which uses the modified algorithm. Also added
7408 an -sgckey command line option to the rsa utility. Thanks to
7409 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7410 algorithm to openssl-dev.
7413 *) The evp_local.h macros were using 'c.##kname' which resulted in
7414 invalid expansion on some systems (SCO 5.0.5 for example).
7415 Corrected to 'c.kname'.
7416 [Phillip Porch <root@theporch.com>]
7418 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7419 a STACK of email addresses from a certificate or request, these look
7420 in the subject name and the subject alternative name extensions and
7421 omit any duplicate addresses.
7424 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7425 This makes DSA verification about 2 % faster.
7428 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7429 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7430 plus overhead for 1024 bit moduli).
7431 This makes exponentiations about 0.5 % faster for 1024 bit
7432 exponents (as measured by "openssl speed rsa2048").
7435 *) Rename memory handling macros to avoid conflicts with other
7437 Malloc => OPENSSL_malloc
7438 Malloc_locked => OPENSSL_malloc_locked
7439 Realloc => OPENSSL_realloc
7440 Free => OPENSSL_free
7443 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7444 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7447 *) CygWin32 support.
7448 [John Jarvie <jjarvie@newsguy.com>]
7450 *) The type-safe stack code has been rejigged. It is now only compiled
7451 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7452 by default all type-specific stack functions are "#define"d back to
7453 standard stack functions. This results in more streamlined output
7454 but retains the type-safety checking possibilities of the original
7458 *) The STACK code has been cleaned up, and certain type declarations
7459 that didn't make a lot of sense have been brought in line. This has
7460 also involved a cleanup of sorts in safestack.h to more correctly
7461 map type-safe stack functions onto their plain stack counterparts.
7462 This work has also resulted in a variety of "const"ifications of
7463 lots of the code, especially "_cmp" operations which should normally
7464 be prototyped with "const" parameters anyway.
7467 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7468 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7469 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7470 where all of 'md' is used each time the PRNG is used, but 'state'
7471 is used only indexed by a cyclic counter. As entropy may not be
7472 well distributed from the beginning, 'md' is important as a
7473 chaining variable. However, the output function chains only half
7474 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7475 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7476 in all of 'state' being rewritten, with the new values depending
7477 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7480 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7481 the handshake is continued after ssl_verify_cert_chain();
7482 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7483 can lead to 'unexplainable' connection aborts later.
7484 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7486 *) Major EVP API cipher revision.
7487 Add hooks for extra EVP features. This allows various cipher
7488 parameters to be set in the EVP interface. Support added for variable
7489 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7490 setting of RC2 and RC5 parameters.
7492 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7495 Remove lots of duplicated code from the EVP library. For example *every*
7496 cipher init() function handles the 'iv' in the same way according to the
7497 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7498 for CFB and OFB modes they zero ctx->num.
7500 New functionality allows removal of S/MIME code RC2 hack.
7502 Most of the routines have the same form and so can be declared in terms
7505 By shifting this to the top level EVP_CipherInit() it can be removed from
7506 all individual ciphers. If the cipher wants to handle IVs or keys
7507 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7510 Change lots of functions like EVP_EncryptUpdate() to now return a
7511 value: although software versions of the algorithms cannot fail
7512 any installed hardware versions can.
7515 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7516 this option is set, tolerate broken clients that send the negotiated
7517 protocol version number instead of the requested protocol version
7521 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7522 i.e. non-zero for export ciphersuites, zero otherwise.
7523 Previous versions had this flag inverted, inconsistent with
7524 rsa_tmp_cb (..._TMP_RSA_CB).
7525 [Bodo Moeller; problem reported by Amit Chopra]
7527 *) Add missing DSA library text string. Work around for some IIS
7528 key files with invalid SEQUENCE encoding.
7531 *) Add a document (doc/standards.txt) that list all kinds of standards
7532 and so on that are implemented in OpenSSL.
7535 *) Enhance c_rehash script. Old version would mishandle certificates
7536 with the same subject name hash and wouldn't handle CRLs at all.
7537 Added -fingerprint option to crl utility, to support new c_rehash
7541 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7544 *) Fix for SSL server purpose checking. Server checking was
7545 rejecting certificates which had extended key usage present
7546 but no ssl client purpose.
7547 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7549 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7550 is a little unclear about how a blank password is handled.
7551 Since the password in encoded as a BMPString with terminating
7552 double NULL a zero length password would end up as just the
7553 double NULL. However no password at all is different and is
7554 handled differently in the PKCS#12 key generation code. NS
7555 treats a blank password as zero length. MSIE treats it as no
7556 password on export: but it will try both on import. We now do
7557 the same: PKCS12_parse() tries zero length and no password if
7558 the password is set to "" or NULL (NULL is now a valid password:
7559 it wasn't before) as does the pkcs12 application.
7562 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7563 perror when PEM_read_bio_X509_REQ fails, the error message must
7564 be obtained from the error queue.
7567 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7568 it in ERR_remove_state if appropriate, and change ERR_get_state
7569 accordingly to avoid race conditions (this is necessary because
7570 thread_hash is no longer constant once set).
7573 *) Bugfix for linux-elf makefile.one.
7576 *) RSA_get_default_method() will now cause a default
7577 RSA_METHOD to be chosen if one doesn't exist already.
7578 Previously this was only set during a call to RSA_new()
7579 or RSA_new_method(NULL) meaning it was possible for
7580 RSA_get_default_method() to return NULL.
7583 *) Added native name translation to the existing DSO code
7584 that will convert (if the flag to do so is set) filenames
7585 that are sufficiently small and have no path information
7586 into a canonical native form. Eg. "blah" converted to
7587 "libblah.so" or "blah.dll" etc.
7590 *) New function ERR_error_string_n(e, buf, len) which is like
7591 ERR_error_string(e, buf), but writes at most 'len' bytes
7592 including the 0 terminator. For ERR_error_string_n, 'buf'
7594 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7596 *) CONF library reworked to become more general. A new CONF
7597 configuration file reader "class" is implemented as well as a
7598 new functions (NCONF_*, for "New CONF") to handle it. The now
7599 old CONF_* functions are still there, but are reimplemented to
7600 work in terms of the new functions. Also, a set of functions
7601 to handle the internal storage of the configuration data is
7602 provided to make it easier to write new configuration file
7603 reader "classes" (I can definitely see something reading a
7604 configuration file in XML format, for example), called _CONF_*,
7605 or "the configuration storage API"...
7607 The new configuration file reading functions are:
7609 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7610 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7612 NCONF_default, NCONF_WIN32
7614 NCONF_dump_fp, NCONF_dump_bio
7616 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7617 NCONF_new creates a new CONF object. This works in the same way
7618 as other interfaces in OpenSSL, like the BIO interface.
7619 NCONF_dump_* dump the internal storage of the configuration file,
7620 which is useful for debugging. All other functions take the same
7621 arguments as the old CONF_* functions wth the exception of the
7622 first that must be a `CONF *' instead of a `LHASH *'.
7624 To make it easer to use the new classes with the old CONF_* functions,
7625 the function CONF_set_default_method is provided.
7628 *) Add '-tls1' option to 'openssl ciphers', which was already
7629 mentioned in the documentation but had not been implemented.
7630 (This option is not yet really useful because even the additional
7631 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7634 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7635 OpenSSL-based applications) load shared libraries and bind to
7636 them in a portable way.
7637 [Geoff Thorpe, with contributions from Richard Levitte]
7639 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7641 *) Make sure _lrotl and _lrotr are only used with MSVC.
7643 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7644 (the default implementation of RAND_status).
7646 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7647 to '-clrext' (= clear extensions), as intended and documented.
7648 [Bodo Moeller; inconsistency pointed out by Michael Attili
7651 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7652 was larger than the MD block size.
7653 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7655 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7656 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7657 using the passed key: if the passed key was a private key the result
7658 of X509_print(), for example, would be to print out all the private key
7662 *) des_quad_cksum() byte order bug fix.
7663 [Ulf Möller, using the problem description in krb4-0.9.7, where
7664 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7666 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7668 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7670 *) For easily testing in shell scripts whether some command
7671 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7672 returns with exit code 0 iff no command of the given name is available.
7673 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7674 the output goes to stdout and nothing is printed to stderr.
7675 Additional arguments are always ignored.
7677 Since for each cipher there is a command of the same name,
7678 the 'no-cipher' compilation switches can be tested this way.
7680 ('openssl no-XXX' is not able to detect pseudo-commands such
7681 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7684 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7687 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7688 is set; it will be thrown away anyway because each handshake creates
7690 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7691 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7692 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7693 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7696 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7697 'Q' and 'R' lose their special meanings (quit/renegotiate).
7698 This is part of what -quiet does; unlike -quiet, -ign_eof
7699 does not suppress any output.
7702 *) Add compatibility options to the purpose and trust code. The
7703 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7704 accepts a certificate or CA, this was the previous behaviour,
7705 with all the associated security issues.
7707 X509_TRUST_COMPAT is the old trust behaviour: only and
7708 automatically trust self signed roots in certificate store. A
7709 new trust setting X509_TRUST_DEFAULT is used to specify that
7710 a purpose has no associated trust setting and it should instead
7711 use the value in the default purpose.
7714 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7715 and fix a memory leak.
7718 *) In util/mkerr.pl (which implements 'make errors'), preserve
7719 reason strings from the previous version of the .c file, as
7720 the default to have only downcase letters (and digits) in
7721 automatically generated reasons codes is not always appropriate.
7724 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7725 using strerror. Previously, ERR_reason_error_string() returned
7726 library names as reason strings for SYSerr; but SYSerr is a special
7727 case where small numbers are errno values, not library numbers.
7730 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7731 converts DSA parameters into DH parameters. (When creating parameters,
7732 DSA_generate_parameters is used.)
7735 *) Include 'length' (recommended exponent length) in C code generated
7736 by 'openssl dhparam -C'.
7739 *) The second argument to set_label in perlasm was already being used
7740 so couldn't be used as a "file scope" flag. Moved to third argument
7744 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7745 instead of RAND_bytes for encryption IVs and salts.
7748 *) Include RAND_status() into RAND_METHOD instead of implementing
7749 it only for md_rand.c Otherwise replacing the PRNG by calling
7750 RAND_set_rand_method would be impossible.
7753 *) Don't let DSA_generate_key() enter an infinite loop if the random
7754 number generation fails.
7757 *) New 'rand' application for creating pseudo-random output.
7760 *) Added configuration support for Linux/IA64
7761 [Rolf Haberrecker <rolf@suse.de>]
7763 *) Assembler module support for Mingw32.
7766 *) Shared library support for HPUX (in shlib/).
7767 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7769 *) Shared library support for Solaris gcc.
7770 [Lutz Behnke <behnke@trustcenter.de>]
7772 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7774 *) PKCS7_encrypt() was adding text MIME headers twice because they
7775 were added manually and by SMIME_crlf_copy().
7778 *) In bntest.c don't call BN_rand with zero bits argument.
7779 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7781 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7782 case was implemented. This caused BN_div_recp() to fail occasionally.
7785 *) Add an optional second argument to the set_label() in the perl
7786 assembly language builder. If this argument exists and is set
7787 to 1 it signals that the assembler should use a symbol whose
7788 scope is the entire file, not just the current function. This
7789 is needed with MASM which uses the format label:: for this scope.
7790 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7792 *) Change the ASN1 types so they are typedefs by default. Before
7793 almost all types were #define'd to ASN1_STRING which was causing
7794 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7798 *) Change names of new functions to the new get1/get0 naming
7799 convention: After 'get1', the caller owns a reference count
7800 and has to call ..._free; 'get0' returns a pointer to some
7801 data structure without incrementing reference counters.
7802 (Some of the existing 'get' functions increment a reference
7803 counter, some don't.)
7804 Similarly, 'set1' and 'add1' functions increase reference
7805 counters or duplicate objects.
7808 *) Allow for the possibility of temp RSA key generation failure:
7809 the code used to assume it always worked and crashed on failure.
7812 *) Fix potential buffer overrun problem in BIO_printf().
7813 [Ulf Möller, using public domain code by Patrick Powell; problem
7814 pointed out by David Sacerdote <das33@cornell.edu>]
7816 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7817 RAND_egd() and RAND_status(). In the command line application,
7818 the EGD socket can be specified like a seed file using RANDFILE
7822 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7823 Some CAs (e.g. Verisign) distribute certificates in this form.
7826 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7827 list to exclude them. This means that no special compilation option
7828 is needed to use anonymous DH: it just needs to be included in the
7832 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7833 EVP_MD_type. The old functionality is available in a new macro called
7834 EVP_MD_md(). Change code that uses it and update docs.
7837 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7838 where the 'void *' argument is replaced by a function pointer argument.
7839 Previously 'void *' was abused to point to functions, which works on
7840 many platforms, but is not correct. As these functions are usually
7841 called by macros defined in OpenSSL header files, most source code
7842 should work without changes.
7845 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7846 sections with information on -D... compiler switches used for
7847 compiling the library so that applications can see them. To enable
7848 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7849 must be defined. E.g.,
7850 #define OPENSSL_ALGORITHM_DEFINES
7851 #include <openssl/opensslconf.h>
7852 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7853 [Richard Levitte, Ulf and Bodo Möller]
7855 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7859 *) Change the 'other' type in certificate aux info to a STACK_OF
7860 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7861 the required ASN1 format: arbitrary types determined by an OID.
7864 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7865 argument to 'req'. This is not because the function is newer or
7866 better than others it just uses the work 'NEW' in the certificate
7867 request header lines. Some software needs this.
7870 *) Reorganise password command line arguments: now passwords can be
7871 obtained from various sources. Delete the PEM_cb function and make
7872 it the default behaviour: i.e. if the callback is NULL and the
7873 usrdata argument is not NULL interpret it as a null terminated pass
7874 phrase. If usrdata and the callback are NULL then the pass phrase
7875 is prompted for as usual.
7878 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7879 the support is automatically enabled. The resulting binaries will
7880 autodetect the card and use it if present.
7881 [Ben Laurie and Compaq Inc.]
7883 *) Work around for Netscape hang bug. This sends certificate request
7884 and server done in one record. Since this is perfectly legal in the
7885 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7886 the bugs/SSLv3 entry for more info.
7889 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7892 *) Add -rand argument to smime and pkcs12 applications and read/write
7896 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7899 *) Add command line password options to the remaining applications.
7902 *) Bug fix for BN_div_recp() for numerators with an even number of
7906 *) More tests in bntest.c, and changed test_bn output.
7909 *) ./config recognizes MacOS X now.
7912 *) Bug fix for BN_div() when the first words of num and divsor are
7913 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7916 *) Add support for various broken PKCS#8 formats, and command line
7917 options to produce them.
7920 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7921 get temporary BIGNUMs from a BN_CTX.
7924 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7928 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7929 include a #define from the old name to the new. The original intent
7930 was that statically linked binaries could for example just call
7931 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7932 link with digests. This never worked becayse SSLeay_add_all_digests()
7933 and SSLeay_add_all_ciphers() were in the same source file so calling
7934 one would link with the other. They are now in separate source files.
7937 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7940 *) Use a less unusual form of the Miller-Rabin primality test (it used
7941 a binary algorithm for exponentiation integrated into the Miller-Rabin
7942 loop, our standard modexp algorithms are faster).
7945 *) Support for the EBCDIC character set completed.
7946 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7948 *) Source code cleanups: use const where appropriate, eliminate casts,
7949 use void * instead of char * in lhash.
7952 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7953 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7954 this the server could overwrite ephemeral keys that the client
7958 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7959 using 50 iterations of the Rabin-Miller test.
7961 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7962 iterations of the Rabin-Miller test as required by the appendix
7963 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7964 As BN_is_prime_fasttest includes trial division, DSA parameter
7965 generation becomes much faster.
7967 This implies a change for the callback functions in DSA_is_prime
7968 and DSA_generate_parameters: The callback function is called once
7969 for each positive witness in the Rabin-Miller test, not just
7970 occasionally in the inner loop; and the parameters to the
7971 callback function now provide an iteration count for the outer
7972 loop rather than for the current invocation of the inner loop.
7973 DSA_generate_parameters additionally can call the callback
7974 function with an 'iteration count' of -1, meaning that a
7975 candidate has passed the trial division test (when q is generated
7976 from an application-provided seed, trial division is skipped).
7979 *) New function BN_is_prime_fasttest that optionally does trial
7980 division before starting the Rabin-Miller test and has
7981 an additional BN_CTX * argument (whereas BN_is_prime always
7982 has to allocate at least one BN_CTX).
7983 'callback(1, -1, cb_arg)' is called when a number has passed the
7984 trial division stage.
7987 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7991 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7994 *) New function BN_pseudo_rand().
7997 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7998 bignum version of BN_from_montgomery() with the working code from
7999 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8003 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8004 made it impossible to use the same SSL_SESSION data structure in
8005 SSL2 clients in multiple threads.
8008 *) The return value of RAND_load_file() no longer counts bytes obtained
8009 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8010 to seed the PRNG (previously an explicit byte count was required).
8011 [Ulf Möller, Bodo Möller]
8013 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8014 used (char *) instead of (void *) and had casts all over the place.
8017 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8020 *) Retain source code compatibility for BN_prime_checks macro:
8021 BN_is_prime(..., BN_prime_checks, ...) now uses
8022 BN_prime_checks_for_size to determine the appropriate number of
8023 Rabin-Miller iterations.
8026 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8027 DH_CHECK_P_NOT_SAFE_PRIME.
8028 (Check if this is true? OpenPGP calls them "strong".)
8031 *) Merge the functionality of "dh" and "gendh" programs into a new program
8032 "dhparam". The old programs are retained for now but will handle DH keys
8033 (instead of parameters) in future.
8036 *) Make the ciphers, s_server and s_client programs check the return values
8037 when a new cipher list is set.
8040 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8041 ciphers. Before when the 56bit ciphers were enabled the sorting was
8044 The syntax for the cipher sorting has been extended to support sorting by
8045 cipher-strength (using the strength_bits hard coded in the tables).
8046 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8048 Fix a bug in the cipher-command parser: when supplying a cipher command
8049 string with an "undefined" symbol (neither command nor alphanumeric
8050 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8051 an error is flagged.
8053 Due to the strength-sorting extension, the code of the
8054 ssl_create_cipher_list() function was completely rearranged. I hope that
8055 the readability was also increased :-)
8056 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8058 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8059 for the first serial number and places 2 in the serial number file. This
8060 avoids problems when the root CA is created with serial number zero and
8061 the first user certificate has the same issuer name and serial number
8065 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8066 the new code. Add documentation for this stuff.
8069 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8070 X509_*() to X509at_*() on the grounds that they don't handle X509
8071 structures and behave in an analagous way to the X509v3 functions:
8072 they shouldn't be called directly but wrapper functions should be used
8075 So we also now have some wrapper functions that call the X509at functions
8076 when passed certificate requests. (TO DO: similar things can be done with
8077 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8078 things. Some of these need some d2i or i2d and print functionality
8079 because they handle more complex structures.)
8082 *) Add missing #ifndefs that caused missing symbols when building libssl
8083 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8084 NO_RSA in ssl/s2*.c.
8085 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8087 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8088 has a return value which indicates the quality of the random data
8089 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8090 error queue. New function RAND_pseudo_bytes() generates output that is
8091 guaranteed to be unique but not unpredictable. RAND_add is like
8092 RAND_seed, but takes an extra argument for an entropy estimate
8093 (RAND_seed always assumes full entropy).
8096 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8097 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8098 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8099 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8100 false-positive rate of at most 2^-80 for random input.
8103 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8106 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8107 in the 0.9.5 release), this returns the chain
8108 from an X509_CTX structure with a dup of the stack and all
8109 the X509 reference counts upped: so the stack will exist
8110 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8113 Also make SSL_SESSION_print() print out the verify return
8117 *) Add manpage for the pkcs12 command. Also change the default
8118 behaviour so MAC iteration counts are used unless the new
8119 -nomaciter option is used. This improves file security and
8120 only older versions of MSIE (4.0 for example) need it.
8123 *) Honor the no-xxx Configure options when creating .DEF files.
8126 *) Add PKCS#10 attributes to field table: challengePassword,
8127 unstructuredName and unstructuredAddress. These are taken from
8128 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8129 international characters are used.
8131 More changes to X509_ATTRIBUTE code: allow the setting of types
8132 based on strings. Remove the 'loc' parameter when adding
8133 attributes because these will be a SET OF encoding which is sorted
8137 *) Initial changes to the 'req' utility to allow request generation
8138 automation. This will allow an application to just generate a template
8139 file containing all the field values and have req construct the
8142 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8143 used all over the place including certificate requests and PKCS#7
8144 structures. They are currently handled manually where necessary with
8145 some primitive wrappers for PKCS#7. The new functions behave in a
8146 manner analogous to the X509 extension functions: they allow
8147 attributes to be looked up by NID and added.
8149 Later something similar to the X509V3 code would be desirable to
8150 automatically handle the encoding, decoding and printing of the
8151 more complex types. The string types like challengePassword can
8152 be handled by the string table functions.
8154 Also modified the multi byte string table handling. Now there is
8155 a 'global mask' which masks out certain types. The table itself
8156 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8157 is useful when for example there is only one permissible type
8158 (as in countryName) and using the mask might result in no valid
8162 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8163 SSL_get_peer_finished to allow applications to obtain the latest
8164 Finished messages sent to the peer or expected from the peer,
8165 respectively. (SSL_get_peer_finished is usually the Finished message
8166 actually received from the peer, otherwise the protocol will be aborted.)
8168 As the Finished message are message digests of the complete handshake
8169 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8170 be used for external authentication procedures when the authentication
8171 provided by SSL/TLS is not desired or is not enough.
8174 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8175 the host supports BWX extension and if Compaq C is present on the
8176 $PATH. Just exploiting of the BWX extension results in 20-30%
8177 performance kick for some algorithms, e.g. DES and RC4 to mention
8178 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8182 *) Add support for MS "fast SGC". This is arguably a violation of the
8183 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8184 weak crypto and after checking the certificate is SGC a second one
8185 with strong crypto. MS SGC stops the first handshake after receiving
8186 the server certificate message and sends a second client hello. Since
8187 a server will typically do all the time consuming operations before
8188 expecting any further messages from the client (server key exchange
8189 is the most expensive) there is little difference between the two.
8191 To get OpenSSL to support MS SGC we have to permit a second client
8192 hello message after we have sent server done. In addition we have to
8193 reset the MAC if we do get this second client hello.
8196 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8197 if a DER encoded private key is RSA or DSA traditional format. Changed
8198 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8199 format DER encoded private key. Newer code should use PKCS#8 format which
8200 has the key type encoded in the ASN1 structure. Added DER private key
8201 support to pkcs8 application.
8204 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8205 ciphersuites has been selected (as required by the SSL 3/TLS 1
8206 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8207 is set, we interpret this as a request to violate the specification
8208 (the worst that can happen is a handshake failure, and 'correct'
8209 behaviour would result in a handshake failure anyway).
8212 *) In SSL_CTX_add_session, take into account that there might be multiple
8213 SSL_SESSION structures with the same session ID (e.g. when two threads
8214 concurrently obtain them from an external cache).
8215 The internal cache can handle only one SSL_SESSION with a given ID,
8216 so if there's a conflict, we now throw out the old one to achieve
8220 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8221 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8222 some routines that use cipher OIDs: some ciphers do not have OIDs
8223 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8227 *) Simplify the trust setting structure and code. Now we just have
8228 two sequences of OIDs for trusted and rejected settings. These will
8229 typically have values the same as the extended key usage extension
8230 and any application specific purposes.
8232 The trust checking code now has a default behaviour: it will just
8233 check for an object with the same NID as the passed id. Functions can
8234 be provided to override either the default behaviour or the behaviour
8235 for a given id. SSL client, server and email already have functions
8236 in place for compatibility: they check the NID and also return "trusted"
8237 if the certificate is self signed.
8240 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8241 traditional format into an EVP_PKEY structure.
8244 *) Add a password callback function PEM_cb() which either prompts for
8245 a password if usr_data is NULL or otherwise assumes it is a null
8246 terminated password. Allow passwords to be passed on command line
8247 environment or config files in a few more utilities.
8250 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8251 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8252 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8253 Update documentation.
8256 *) Support for ASN1 "NULL" type. This could be handled before by using
8257 ASN1_TYPE but there wasn't any function that would try to read a NULL
8258 and produce an error if it couldn't. For compatibility we also have
8259 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8260 don't allocate anything because they don't need to.
8263 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8265 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8267 *) Rebuild of the memory allocation routines used by OpenSSL code and
8268 possibly others as well. The purpose is to make an interface that
8269 provide hooks so anyone can build a separate set of allocation and
8270 deallocation routines to be used by OpenSSL, for example memory
8271 pool implementations, or something else, which was previously hard
8272 since Malloc(), Realloc() and Free() were defined as macros having
8273 the values malloc, realloc and free, respectively (except for Win32
8274 compilations). The same is provided for memory debugging code.
8275 OpenSSL already comes with functionality to find memory leaks, but
8276 this gives people a chance to debug other memory problems.
8278 With these changes, a new set of functions and macros have appeared:
8280 CRYPTO_set_mem_debug_functions() [F]
8281 CRYPTO_get_mem_debug_functions() [F]
8282 CRYPTO_dbg_set_options() [F]
8283 CRYPTO_dbg_get_options() [F]
8284 CRYPTO_malloc_debug_init() [M]
8286 The memory debug functions are NULL by default, unless the library
8287 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8288 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8289 gives the standard debugging functions that come with OpenSSL) or
8290 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8291 provided by the library user) must be used. When the standard
8292 debugging functions are used, CRYPTO_dbg_set_options can be used to
8293 request additional information:
8294 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8295 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8297 Also, things like CRYPTO_set_mem_functions will always give the
8298 expected result (the new set of functions is used for allocation
8299 and deallocation) at all times, regardless of platform and compiler
8302 To finish it up, some functions that were never use in any other
8303 way than through macros have a new API and new semantic:
8306 CRYPTO_dbg_realloc()
8309 All macros of value have retained their old syntax.
8310 [Richard Levitte and Bodo Moeller]
8312 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8313 ordering of SMIMECapabilities wasn't in "strength order" and there
8314 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8318 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8319 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8320 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8322 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8323 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8324 functionality to handle multipart/signed properly) and a utility
8325 called 'smime' to call all this stuff. This is based on code I
8326 originally wrote for Celo who have kindly allowed it to be
8327 included in OpenSSL.
8330 *) Add variants des_set_key_checked and des_set_key_unchecked of
8331 des_set_key (aka des_key_sched). Global variable des_check_key
8332 decides which of these is called by des_set_key; this way
8333 des_check_key behaves as it always did, but applications and
8334 the library itself, which was buggy for des_check_key == 1,
8335 have a cleaner way to pick the version they need.
8338 *) New function PKCS12_newpass() which changes the password of a
8342 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8343 dynamic mix. In both cases the ids can be used as an index into the
8344 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8345 functions so they accept a list of the field values and the
8346 application doesn't need to directly manipulate the X509_TRUST
8350 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8354 *) Modify the way the V3 extension code looks up extensions. This now
8355 works in a similar way to the object code: we have some "standard"
8356 extensions in a static table which is searched with OBJ_bsearch()
8357 and the application can add dynamic ones if needed. The file
8358 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8359 updated whenever a new extension is added to the core code and kept
8360 in ext_nid order. There is a simple program 'tabtest.c' which checks
8361 this. New extensions are not added too often so this file can readily
8362 be maintained manually.
8364 There are two big advantages in doing things this way. The extensions
8365 can be looked up immediately and no longer need to be "added" using
8366 X509V3_add_standard_extensions(): this function now does nothing.
8367 [Side note: I get *lots* of email saying the extension code doesn't
8368 work because people forget to call this function]
8369 Also no dynamic allocation is done unless new extensions are added:
8370 so if we don't add custom extensions there is no need to call
8371 X509V3_EXT_cleanup().
8374 *) Modify enc utility's salting as follows: make salting the default. Add a
8375 magic header, so unsalted files fail gracefully instead of just decrypting
8376 to garbage. This is because not salting is a big security hole, so people
8377 should be discouraged from doing it.
8380 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8381 digest to be passed on the command line but it only used this
8382 parameter when signing a certificate. Modified so all relevant
8383 operations are affected by the digest parameter including the
8384 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8385 DSA key was used because it didn't fix the digest.
8388 *) Initial certificate chain verify code. Currently tests the untrusted
8389 certificates for consistency with the verify purpose (which is set
8390 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8392 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8393 this is because it will reject chains with invalid extensions whereas
8394 every previous version of OpenSSL and SSLeay made no checks at all.
8396 Trust code: checks the root CA for the relevant trust settings. Trust
8397 settings have an initial value consistent with the verify purpose: e.g.
8398 if the verify purpose is for SSL client use it expects the CA to be
8399 trusted for SSL client use. However the default value can be changed to
8400 permit custom trust settings: one example of this would be to only trust
8401 certificates from a specific "secure" set of CAs.
8403 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8404 which should be used for version portability: especially since the
8405 verify structure is likely to change more often now.
8407 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8408 to set them. If not set then assume SSL clients will verify SSL servers
8411 Two new options to the verify program: -untrusted allows a set of
8412 untrusted certificates to be passed in and -purpose which sets the
8413 intended purpose of the certificate. If a purpose is set then the
8414 new chain verify code is used to check extension consistency.
8417 *) Support for the authority information access extension.
8420 *) Modify RSA and DSA PEM read routines to transparently handle
8421 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8422 public keys in a format compatible with certificate
8423 SubjectPublicKeyInfo structures. Unfortunately there were already
8424 functions called *_PublicKey_* which used various odd formats so
8425 these are retained for compatibility: however the DSA variants were
8426 never in a public release so they have been deleted. Changed dsa/rsa
8427 utilities to handle the new format: note no releases ever handled public
8428 keys so we should be OK.
8430 The primary motivation for this change is to avoid the same fiasco
8431 that dogs private keys: there are several incompatible private key
8432 formats some of which are standard and some OpenSSL specific and
8433 require various evil hacks to allow partial transparent handling and
8434 even then it doesn't work with DER formats. Given the option anything
8435 other than PKCS#8 should be dumped: but the other formats have to
8436 stay in the name of compatibility.
8438 With public keys and the benefit of hindsight one standard format
8439 is used which works with EVP_PKEY, RSA or DSA structures: though
8440 it clearly returns an error if you try to read the wrong kind of key.
8442 Added a -pubkey option to the 'x509' utility to output the public key.
8443 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8444 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8445 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8446 that do the same as the EVP_PKEY_assign_*() except they up the
8447 reference count of the added key (they don't "swallow" the
8451 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8452 CRLs would fail if the file contained no certificates or no CRLs:
8453 added a new function to read in both types and return the number
8454 read: this means that if none are read it will be an error. The
8455 DER versions of the certificate and CRL reader would always fail
8456 because it isn't possible to mix certificates and CRLs in DER format
8457 without choking one or the other routine. Changed this to just read
8458 a certificate: this is the best we can do. Also modified the code
8459 in apps/verify.c to take notice of return codes: it was previously
8460 attempting to read in certificates from NULL pointers and ignoring
8461 any errors: this is one reason why the cert and CRL reader seemed
8462 to work. It doesn't check return codes from the default certificate
8463 routines: these may well fail if the certificates aren't installed.
8466 *) Code to support otherName option in GeneralName.
8469 *) First update to verify code. Change the verify utility
8470 so it warns if it is passed a self signed certificate:
8471 for consistency with the normal behaviour. X509_verify
8472 has been modified to it will now verify a self signed
8473 certificate if *exactly* the same certificate appears
8474 in the store: it was previously impossible to trust a
8475 single self signed certificate. This means that:
8476 openssl verify ss.pem
8477 now gives a warning about a self signed certificate but
8478 openssl verify -CAfile ss.pem ss.pem
8482 *) For servers, store verify_result in SSL_SESSION data structure
8483 (and add it to external session representation).
8484 This is needed when client certificate verifications fails,
8485 but an application-provided verification callback (set by
8486 SSL_CTX_set_cert_verify_callback) allows accepting the session
8487 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8488 but returns 1): When the session is reused, we have to set
8489 ssl->verify_result to the appropriate error code to avoid
8491 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8493 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8494 case in PKCS7_dataInit() where the signed PKCS7 structure
8495 didn't contain any existing data because it was being created.
8496 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8498 *) Add a salt to the key derivation routines in enc.c. This
8499 forms the first 8 bytes of the encrypted file. Also add a
8500 -S option to allow a salt to be input on the command line.
8503 *) New function X509_cmp(). Oddly enough there wasn't a function
8504 to compare two certificates. We do this by working out the SHA1
8505 hash and comparing that. X509_cmp() will be needed by the trust
8509 *) SSL_get1_session() is like SSL_get_session(), but increments
8510 the reference count in the SSL_SESSION returned.
8511 [Geoff Thorpe <geoff@eu.c2.net>]
8513 *) Fix for 'req': it was adding a null to request attributes.
8514 Also change the X509_LOOKUP and X509_INFO code to handle
8515 certificate auxiliary information.
8518 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8522 *) Add the possibility to add extra information to the memory leak
8523 detecting output, to form tracebacks, showing from where each
8524 allocation was originated: CRYPTO_push_info("constant string") adds
8525 the string plus current file name and line number to a per-thread
8526 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8527 is like calling CYRPTO_pop_info() until the stack is empty.
8528 Also updated memory leak detection code to be multi-thread-safe.
8531 *) Add options -text and -noout to pkcs7 utility and delete the
8532 encryption options which never did anything. Update docs.
8535 *) Add options to some of the utilities to allow the pass phrase
8536 to be included on either the command line (not recommended on
8537 OSes like Unix) or read from the environment. Update the
8538 manpages and fix a few bugs.
8541 *) Add a few manpages for some of the openssl commands.
8544 *) Fix the -revoke option in ca. It was freeing up memory twice,
8545 leaking and not finding already revoked certificates.
8548 *) Extensive changes to support certificate auxiliary information.
8549 This involves the use of X509_CERT_AUX structure and X509_AUX
8550 functions. An X509_AUX function such as PEM_read_X509_AUX()
8551 can still read in a certificate file in the usual way but it
8552 will also read in any additional "auxiliary information". By
8553 doing things this way a fair degree of compatibility can be
8554 retained: existing certificates can have this information added
8555 using the new 'x509' options.
8557 Current auxiliary information includes an "alias" and some trust
8558 settings. The trust settings will ultimately be used in enhanced
8559 certificate chain verification routines: currently a certificate
8560 can only be trusted if it is self signed and then it is trusted
8564 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8565 The problem was that one of the replacement routines had not been working
8566 since SSLeay releases. For now the offending routine has been replaced
8567 with non-optimised assembler. Even so, this now gives around 95%
8568 performance improvement for 1024 bit RSA signs.
8571 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8572 handling. Most clients have the effective key size in bits equal to
8573 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8574 A few however don't do this and instead use the size of the decrypted key
8575 to determine the RC2 key length and the AlgorithmIdentifier to determine
8576 the effective key length. In this case the effective key length can still
8577 be 40 bits but the key length can be 168 bits for example. This is fixed
8578 by manually forcing an RC2 key into the EVP_PKEY structure because the
8579 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8580 the key length and effective key length are equal.
8583 *) Add a bunch of functions that should simplify the creation of
8584 X509_NAME structures. Now you should be able to do:
8585 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8586 and have it automatically work out the correct field type and fill in
8587 the structures. The more adventurous can try:
8588 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8589 and it will (hopefully) work out the correct multibyte encoding.
8592 *) Change the 'req' utility to use the new field handling and multibyte
8593 copy routines. Before the DN field creation was handled in an ad hoc
8594 way in req, ca, and x509 which was rather broken and didn't support
8595 BMPStrings or UTF8Strings. Since some software doesn't implement
8596 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8597 using the dirstring_type option. See the new comment in the default
8598 openssl.cnf for more info.
8601 *) Make crypto/rand/md_rand.c more robust:
8602 - Assure unique random numbers after fork().
8603 - Make sure that concurrent threads access the global counter and
8604 md serializably so that we never lose entropy in them
8605 or use exactly the same state in multiple threads.
8606 Access to the large state is not always serializable because
8607 the additional locking could be a performance killer, and
8608 md should be large enough anyway.
8611 *) New file apps/app_rand.c with commonly needed functionality
8612 for handling the random seed file.
8614 Use the random seed file in some applications that previously did not:
8616 dsaparam -genkey (which also ignored its '-rand' option),
8619 x509 (when signing).
8620 Except on systems with /dev/urandom, it is crucial to have a random
8621 seed file at least for key creation, DSA signing, and for DH exchanges;
8622 for RSA signatures we could do without one.
8624 gendh and gendsa (unlike genrsa) used to read only the first byte
8625 of each file listed in the '-rand' option. The function as previously
8626 found in genrsa is now in app_rand.c and is used by all programs
8627 that support '-rand'.
8630 *) In RAND_write_file, use mode 0600 for creating files;
8631 don't just chmod when it may be too late.
8634 *) Report an error from X509_STORE_load_locations
8635 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8638 *) New function ASN1_mbstring_copy() this copies a string in either
8639 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8640 into an ASN1_STRING type. A mask of permissible types is passed
8641 and it chooses the "minimal" type to use or an error if not type
8645 *) Add function equivalents to the various macros in asn1.h. The old
8646 macros are retained with an M_ prefix. Code inside the library can
8647 use the M_ macros. External code (including the openssl utility)
8648 should *NOT* in order to be "shared library friendly".
8651 *) Add various functions that can check a certificate's extensions
8652 to see if it usable for various purposes such as SSL client,
8653 server or S/MIME and CAs of these types. This is currently
8654 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8655 verification. Also added a -purpose flag to x509 utility to
8656 print out all the purposes.
8659 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8663 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8664 for, obtain and decode and extension and obtain its critical flag.
8665 This allows all the necessary extension code to be handled in a
8666 single function call.
8669 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8670 platforms. See crypto/rc4/rc4_enc.c for further details.
8673 *) New -noout option to asn1parse. This causes no output to be produced
8674 its main use is when combined with -strparse and -out to extract data
8675 from a file (which may not be in ASN.1 format).
8678 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8679 when producing the local key id.
8680 [Richard Levitte <levitte@stacken.kth.se>]
8682 *) New option -dhparam in s_server. This allows a DH parameter file to be
8683 stated explicitly. If it is not stated then it tries the first server
8684 certificate file. The previous behaviour hard coded the filename
8688 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8689 a public key to be input or output. For example:
8690 openssl rsa -in key.pem -pubout -out pubkey.pem
8691 Also added necessary DSA public key functions to handle this.
8694 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8695 in the message. This was handled by allowing
8696 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8697 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8699 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8700 to the end of the strings whereas this didn't. This would cause problems
8701 if strings read with d2i_ASN1_bytes() were later modified.
8702 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8704 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8705 data and it contains EOF it will end up returning an error. This is
8706 caused by input 46 bytes long. The cause is due to the way base64
8707 BIOs find the start of base64 encoded data. They do this by trying a
8708 trial decode on each line until they find one that works. When they
8709 do a flag is set and it starts again knowing it can pass all the
8710 data directly through the decoder. Unfortunately it doesn't reset
8711 the context it uses. This means that if EOF is reached an attempt
8712 is made to pass two EOFs through the context and this causes the
8713 resulting error. This can also cause other problems as well. As is
8714 usual with these problems it takes *ages* to find and the fix is
8715 trivial: move one line.
8716 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8718 *) Ugly workaround to get s_client and s_server working under Windows. The
8719 old code wouldn't work because it needed to select() on sockets and the
8720 tty (for keypresses and to see if data could be written). Win32 only
8721 supports select() on sockets so we select() with a 1s timeout on the
8722 sockets and then see if any characters are waiting to be read, if none
8723 are present then we retry, we also assume we can always write data to
8724 the tty. This isn't nice because the code then blocks until we've
8725 received a complete line of data and it is effectively polling the
8726 keyboard at 1s intervals: however it's quite a bit better than not
8727 working at all :-) A dedicated Windows application might handle this
8728 with an event loop for example.
8731 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8732 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8733 will be called when RSA_sign() and RSA_verify() are used. This is useful
8734 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8735 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8736 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8737 This necessitated the support of an extra signature type NID_md5_sha1
8738 for SSL signatures and modifications to the SSL library to use it instead
8739 of calling RSA_public_decrypt() and RSA_private_encrypt().
8742 *) Add new -verify -CAfile and -CApath options to the crl program, these
8743 will lookup a CRL issuers certificate and verify the signature in a
8744 similar way to the verify program. Tidy up the crl program so it
8745 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8746 less strict. It will now permit CRL extensions even if it is not
8747 a V2 CRL: this will allow it to tolerate some broken CRLs.
8750 *) Initialize all non-automatic variables each time one of the openssl
8751 sub-programs is started (this is necessary as they may be started
8752 multiple times from the "OpenSSL>" prompt).
8753 [Lennart Bang, Bodo Moeller]
8755 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8756 removing all other RSA functionality (this is what NO_RSA does). This
8757 is so (for example) those in the US can disable those operations covered
8758 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8762 *) Non-copying interface to BIO pairs.
8763 (still largely untested)
8766 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8767 ASCII string. This was handled independently in various places before.
8770 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8771 UTF8 strings a character at a time.
8774 *) Use client_version from client hello to select the protocol
8775 (s23_srvr.c) and for RSA client key exchange verification
8776 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8779 *) Add various utility functions to handle SPKACs, these were previously
8780 handled by poking round in the structure internals. Added new function
8781 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8782 print, verify and generate SPKACs. Based on an original idea from
8783 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8786 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8789 *) Allow the config file extension section to be overwritten on the
8790 command line. Based on an original idea from Massimiliano Pala
8791 <madwolf@comune.modena.it>. The new option is called -extensions
8792 and can be applied to ca, req and x509. Also -reqexts to override
8793 the request extensions in req and -crlexts to override the crl extensions
8797 *) Add new feature to the SPKAC handling in ca. Now you can include
8798 the same field multiple times by preceding it by "XXXX." for example:
8801 this is the same syntax as used in the req config file.
8804 *) Allow certificate extensions to be added to certificate requests. These
8805 are specified in a 'req_extensions' option of the req section of the
8806 config file. They can be printed out with the -text option to req but
8807 are otherwise ignored at present.
8810 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8811 data read consists of only the final block it would not decrypted because
8812 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8813 A misplaced 'break' also meant the decrypted final block might not be
8814 copied until the next read.
8817 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8818 a few extra parameters to the DH structure: these will be useful if
8819 for example we want the value of 'q' or implement X9.42 DH.
8822 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8823 provides hooks that allow the default DSA functions or functions on a
8824 "per key" basis to be replaced. This allows hardware acceleration and
8825 hardware key storage to be handled without major modification to the
8826 library. Also added low level modexp hooks and CRYPTO_EX structure and
8827 associated functions.
8830 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8831 as "read only": it can't be written to and the buffer it points to will
8832 not be freed. Reading from a read only BIO is much more efficient than
8833 a normal memory BIO. This was added because there are several times when
8834 an area of memory needs to be read from a BIO. The previous method was
8835 to create a memory BIO and write the data to it, this results in two
8836 copies of the data and an O(n^2) reading algorithm. There is a new
8837 function BIO_new_mem_buf() which creates a read only memory BIO from
8838 an area of memory. Also modified the PKCS#7 routines to use read only
8842 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8843 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8844 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8845 but a retry condition occured while trying to read the rest.
8848 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8849 NID_pkcs7_encrypted by default: this was wrong since this should almost
8850 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8851 the encrypted data type: this is a more sensible place to put it and it
8852 allows the PKCS#12 code to be tidied up that duplicated this
8856 *) Changed obj_dat.pl script so it takes its input and output files on
8857 the command line. This should avoid shell escape redirection problems
8861 *) Initial support for certificate extension requests, these are included
8862 in things like Xenroll certificate requests. Included functions to allow
8863 extensions to be obtained and added.
8866 *) -crlf option to s_client and s_server for sending newlines as
8867 CRLF (as required by many protocols).
8870 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8872 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8873 [Ralf S. Engelschall]
8875 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8876 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8878 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8882 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8883 DH parameters/keys (q is lost during that conversion, but the resulting
8884 DH parameters contain its length).
8886 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8887 much faster than DH_generate_parameters (which creates parameters
8888 where p = 2*q + 1), and also the smaller q makes DH computations
8889 much more efficient (160-bit exponentiation instead of 1024-bit
8890 exponentiation); so this provides a convenient way to support DHE
8891 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8892 utter importance to use
8893 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8895 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8896 when such DH parameters are used, because otherwise small subgroup
8897 attacks may become possible!
8900 *) Avoid memory leak in i2d_DHparams.
8903 *) Allow the -k option to be used more than once in the enc program:
8904 this allows the same encrypted message to be read by multiple recipients.
8907 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8908 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8909 it will always use the numerical form of the OID, even if it has a short
8913 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8914 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8915 otherwise bn_mod_exp was called. In the case of hardware keys for example
8916 no private key components need be present and it might store extra data
8917 in the RSA structure, which cannot be accessed from bn_mod_exp.
8918 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8919 private key operations.
8922 *) Added support for SPARC Linux.
8925 *) pem_password_cb function type incompatibly changed from
8926 typedef int pem_password_cb(char *buf, int size, int rwflag);
8928 ....(char *buf, int size, int rwflag, void *userdata);
8929 so that applications can pass data to their callbacks:
8930 The PEM[_ASN1]_{read,write}... functions and macros now take an
8931 additional void * argument, which is just handed through whenever
8932 the password callback is called.
8933 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8935 New function SSL_CTX_set_default_passwd_cb_userdata.
8937 Compatibility note: As many C implementations push function arguments
8938 onto the stack in reverse order, the new library version is likely to
8939 interoperate with programs that have been compiled with the old
8940 pem_password_cb definition (PEM_whatever takes some data that
8941 happens to be on the stack as its last argument, and the callback
8942 just ignores this garbage); but there is no guarantee whatsoever that
8945 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8946 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8947 problems not only on Windows, but also on some Unix platforms.
8948 To avoid problematic command lines, these definitions are now in an
8949 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8950 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8953 *) MIPS III/IV assembler module is reimplemented.
8956 *) More DES library cleanups: remove references to srand/rand and
8957 delete an unused file.
8960 *) Add support for the the free Netwide assembler (NASM) under Win32,
8961 since not many people have MASM (ml) and it can be hard to obtain.
8962 This is currently experimental but it seems to work OK and pass all
8963 the tests. Check out INSTALL.W32 for info.
8966 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8967 without temporary keys kept an extra copy of the server key,
8968 and connections with temporary keys did not free everything in case
8972 *) New function RSA_check_key and new openssl rsa option -check
8973 for verifying the consistency of RSA keys.
8974 [Ulf Moeller, Bodo Moeller]
8976 *) Various changes to make Win32 compile work:
8977 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8978 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8979 comparison" warnings.
8980 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8983 *) Add a debugging option to PKCS#5 v2 key generation function: when
8984 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8985 derived keys are printed to stderr.
8988 *) Copy the flags in ASN1_STRING_dup().
8989 [Roman E. Pavlov <pre@mo.msk.ru>]
8991 *) The x509 application mishandled signing requests containing DSA
8992 keys when the signing key was also DSA and the parameters didn't match.
8994 It was supposed to omit the parameters when they matched the signing key:
8995 the verifying software was then supposed to automatically use the CA's
8996 parameters if they were absent from the end user certificate.
8998 Omitting parameters is no longer recommended. The test was also
8999 the wrong way round! This was probably due to unusual behaviour in
9000 EVP_cmp_parameters() which returns 1 if the parameters match.
9001 This meant that parameters were omitted when they *didn't* match and
9002 the certificate was useless. Certificates signed with 'ca' didn't have
9004 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9006 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9007 The interface is as follows:
9008 Applications can use
9009 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9010 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9011 "off" is now the default.
9012 The library internally uses
9013 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9014 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9015 to disable memory-checking temporarily.
9017 Some inconsistent states that previously were possible (and were
9018 even the default) are now avoided.
9020 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9021 with each memory chunk allocated; this is occasionally more helpful
9022 than just having a counter.
9024 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9026 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9030 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9031 which largely parallels "options", but is for changing API behaviour,
9032 whereas "options" are about protocol behaviour.
9033 Initial "mode" flags are:
9035 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9036 a single record has been written.
9037 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9038 retries use the same buffer location.
9039 (But all of the contents must be
9043 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9046 *) Fix problems with no-hmac etc.
9047 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9049 *) New functions RSA_get_default_method(), RSA_set_method() and
9050 RSA_get_method(). These allows replacement of RSA_METHODs without having
9051 to mess around with the internals of an RSA structure.
9054 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9055 Also really enable memory leak checks in openssl.c and in some
9057 [Chad C. Mulligan, Bodo Moeller]
9059 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9060 up the length of negative integers. This has now been simplified to just
9061 store the length when it is first determined and use it later, rather
9062 than trying to keep track of where data is copied and updating it to
9064 [Steve Henson, reported by Brien Wheeler
9065 <bwheeler@authentica-security.com>]
9067 *) Add a new function PKCS7_signatureVerify. This allows the verification
9068 of a PKCS#7 signature but with the signing certificate passed to the
9069 function itself. This contrasts with PKCS7_dataVerify which assumes the
9070 certificate is present in the PKCS#7 structure. This isn't always the
9071 case: certificates can be omitted from a PKCS#7 structure and be
9072 distributed by "out of band" means (such as a certificate database).
9075 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9076 function prototypes in pem.h, also change util/mkdef.pl to add the
9077 necessary function names.
9080 *) mk1mf.pl (used by Windows builds) did not properly read the
9081 options set by Configure in the top level Makefile, and Configure
9082 was not even able to write more than one option correctly.
9083 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9086 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9087 file to be loaded from a BIO or FILE pointer. The BIO version will
9088 for example allow memory BIOs to contain config info.
9091 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9092 Whoever hopes to achieve shared-library compatibility across versions
9093 must use this, not the compile-time macro.
9094 (Exercise 0.9.4: Which is the minimum library version required by
9096 Note: All this applies only to multi-threaded programs, others don't
9100 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9101 through a BIO pair triggered the default case, i.e.
9102 SSLerr(...,SSL_R_UNKNOWN_STATE).
9105 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9106 can use the SSL library even if none of the specific BIOs is
9110 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9111 for the encoded length.
9112 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9114 *) Add initial documentation of the X509V3 functions.
9117 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9118 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9119 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9120 secure PKCS#8 private key format with a high iteration count.
9123 *) Fix determination of Perl interpreter: A perl or perl5
9124 _directory_ in $PATH was also accepted as the interpreter.
9125 [Ralf S. Engelschall]
9127 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9128 wrong with it but it was very old and did things like calling
9129 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9133 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9134 to use the new extension code.
9137 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9138 with macros. This should make it easier to change their form, add extra
9139 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9143 *) Add to configuration table a new entry that can specify an alternative
9144 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9145 according to Mark Crispin <MRC@Panda.COM>.
9149 *) DES CBC did not update the IV. Weird.
9152 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9153 Changing the behaviour of the former might break existing programs --
9154 where IV updating is needed, des_ncbc_encrypt can be used.
9157 *) When bntest is run from "make test" it drives bc to check its
9158 calculations, as well as internally checking them. If an internal check
9159 fails, it needs to cause bc to give a non-zero result or make test carries
9160 on without noticing the failure. Fixed.
9163 *) DES library cleanups.
9166 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9167 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9168 ciphers. NOTE: although the key derivation function has been verified
9169 against some published test vectors it has not been extensively tested
9170 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9174 *) Instead of "mkdir -p", which is not fully portable, use new
9175 Perl script "util/mkdir-p.pl".
9178 *) Rewrite the way password based encryption (PBE) is handled. It used to
9179 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9180 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9181 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9182 the 'parameter' field of the AlgorithmIdentifier is passed to the
9183 underlying key generation function so it must do its own ASN1 parsing.
9184 This has also changed the EVP_PBE_CipherInit() function which now has a
9185 'parameter' argument instead of literal salt and iteration count values
9186 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9189 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9190 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9191 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9192 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9193 value was just used as a "magic string" and not used directly its
9194 value doesn't matter.
9197 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9201 *) "linux-sparc64" configuration (ultrapenguin).
9202 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9203 "linux-sparc" configuration.
9204 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9206 *) config now generates no-xxx options for missing ciphers.
9209 *) Support the EBCDIC character set (work in progress).
9210 File ebcdic.c not yet included because it has a different license.
9211 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9213 *) Support BS2000/OSD-POSIX.
9214 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9216 *) Make callbacks for key generation use void * instead of char *.
9219 *) Make S/MIME samples compile (not yet tested).
9222 *) Additional typesafe stacks.
9225 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9229 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9231 *) New configuration variant "sco5-gcc".
9233 *) Updated some demos.
9234 [Sean O Riordain, Wade Scholine]
9236 *) Add missing BIO_free at exit of pkcs12 application.
9239 *) Fix memory leak in conf.c.
9242 *) Updates for Win32 to assembler version of MD5.
9245 *) Set #! path to perl in apps/der_chop to where we found it
9246 instead of using a fixed path.
9249 *) SHA library changes for irix64-mips4-cc.
9252 *) Improvements for VMS support.
9256 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9258 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9259 This also avoids the problems with SC4.2 and unpatched SC5.
9260 [Andy Polyakov <appro@fy.chalmers.se>]
9262 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9263 These are required because of the typesafe stack would otherwise break
9264 existing code. If old code used a structure member which used to be STACK
9265 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9266 sk_num or sk_value it would produce an error because the num, data members
9267 are not present in STACK_OF. Now it just produces a warning. sk_set
9268 replaces the old method of assigning a value to sk_value
9269 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9270 that does this will no longer work (and should use sk_set instead) but
9271 this could be regarded as a "questionable" behaviour anyway.
9274 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9275 correctly handle encrypted S/MIME data.
9278 *) Change type of various DES function arguments from des_cblock
9279 (which means, in function argument declarations, pointer to char)
9280 to des_cblock * (meaning pointer to array with 8 char elements),
9281 which allows the compiler to do more typechecking; it was like
9282 that back in SSLeay, but with lots of ugly casts.
9284 Introduce new type const_des_cblock.
9287 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9288 problems: find RecipientInfo structure that matches recipient certificate
9289 and initialise the ASN1 structures properly based on passed cipher.
9292 *) Belatedly make the BN tests actually check the results.
9295 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9296 to and from BNs: it was completely broken. New compilation option
9297 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9298 key elements as negative integers.
9301 *) Reorganize and speed up MD5.
9302 [Andy Polyakov <appro@fy.chalmers.se>]
9305 [Richard Levitte <richard@levitte.org>]
9307 *) New option -out to asn1parse to allow the parsed structure to be
9308 output to a file. This is most useful when combined with the -strparse
9309 option to examine the output of things like OCTET STRINGS.
9312 *) Make SSL library a little more fool-proof by not requiring any longer
9313 that SSL_set_{accept,connect}_state be called before
9314 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9315 in many applications because usually everything *appeared* to work as
9316 intended anyway -- now it really works as intended).
9319 *) Move openssl.cnf out of lib/.
9322 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9323 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9324 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9325 [Ralf S. Engelschall]
9327 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9328 handle PKCS#7 enveloped data properly.
9329 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9331 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9332 copying pointers. The cert_st handling is changed by this in
9333 various ways (and thus what used to be known as ctx->default_cert
9334 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9335 any longer when s->cert does not give us what we need).
9336 ssl_cert_instantiate becomes obsolete by this change.
9337 As soon as we've got the new code right (possibly it already is?),
9338 we have solved a couple of bugs of the earlier code where s->cert
9339 was used as if it could not have been shared with other SSL structures.
9341 Note that using the SSL API in certain dirty ways now will result
9342 in different behaviour than observed with earlier library versions:
9343 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9344 does not influence s as it used to.
9346 In order to clean up things more thoroughly, inside SSL_SESSION
9347 we don't use CERT any longer, but a new structure SESS_CERT
9348 that holds per-session data (if available); currently, this is
9349 the peer's certificate chain and, for clients, the server's certificate
9350 and temporary key. CERT holds only those values that can have
9351 meaningful defaults in an SSL_CTX.
9354 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9355 from the internal representation. Various PKCS#7 fixes: remove some
9356 evil casts and set the enc_dig_alg field properly based on the signing
9360 *) Allow PKCS#12 password to be set from the command line or the
9361 environment. Let 'ca' get its config file name from the environment
9362 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9366 *) Allow certificate policies extension to use an IA5STRING for the
9367 organization field. This is contrary to the PKIX definition but
9368 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9372 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9373 without disallowing inline assembler and the like for non-pedantic builds.
9376 *) Support Borland C++ builder.
9377 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9382 *) SHA-1 cleanups and performance enhancements.
9383 [Andy Polyakov <appro@fy.chalmers.se>]
9385 *) Sparc v8plus assembler for the bignum library.
9386 [Andy Polyakov <appro@fy.chalmers.se>]
9388 *) Accept any -xxx and +xxx compiler options in Configure.
9391 *) Update HPUX configuration.
9394 *) Add missing sk_<type>_unshift() function to safestack.h
9395 [Ralf S. Engelschall]
9397 *) New function SSL_CTX_use_certificate_chain_file that sets the
9398 "extra_cert"s in addition to the certificate. (This makes sense
9399 only for "PEM" format files, as chains as a whole are not
9403 *) Support verify_depth from the SSL API.
9404 x509_vfy.c had what can be considered an off-by-one-error:
9405 Its depth (which was not part of the external interface)
9406 was actually counting the number of certificates in a chain;
9407 now it really counts the depth.
9410 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9411 instead of X509err, which often resulted in confusing error
9412 messages since the error codes are not globally unique
9413 (e.g. an alleged error in ssl3_accept when a certificate
9414 didn't match the private key).
9416 *) New function SSL_CTX_set_session_id_context that allows to set a default
9417 value (so that you don't need SSL_set_session_id_context for each
9418 connection using the SSL_CTX).
9421 *) OAEP decoding bug fix.
9424 *) Support INSTALL_PREFIX for package builders, as proposed by
9428 *) New Configure options "threads" and "no-threads". For systems
9429 where the proper compiler options are known (currently Solaris
9430 and Linux), "threads" is the default.
9433 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9436 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9437 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9438 such as /usr/local/bin.
9441 *) "make linux-shared" to build shared libraries.
9442 [Niels Poppe <niels@netbox.org>]
9444 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9447 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9448 extension adding in x509 utility.
9451 *) Remove NOPROTO sections and error code comments.
9454 *) Partial rewrite of the DEF file generator to now parse the ANSI
9458 *) New Configure options --prefix=DIR and --openssldir=DIR.
9461 *) Complete rewrite of the error code script(s). It is all now handled
9462 by one script at the top level which handles error code gathering,
9463 header rewriting and C source file generation. It should be much better
9464 than the old method: it now uses a modified version of Ulf's parser to
9465 read the ANSI prototypes in all header files (thus the old K&R definitions
9466 aren't needed for error creation any more) and do a better job of
9467 translating function codes into names. The old 'ASN1 error code imbedded
9468 in a comment' is no longer necessary and it doesn't use .err files which
9469 have now been deleted. Also the error code call doesn't have to appear all
9470 on one line (which resulted in some large lines...).
9473 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9476 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9477 0 (which usually indicates a closed connection), but continue reading.
9480 *) Fix some race conditions.
9483 *) Add support for CRL distribution points extension. Add Certificate
9484 Policies and CRL distribution points documentation.
9487 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9490 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9491 8 of keying material. Merlin has also confirmed interop with this fix
9492 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9493 [Merlin Hughes <merlin@baltimore.ie>]
9495 *) Fix lots of warnings.
9496 [Richard Levitte <levitte@stacken.kth.se>]
9498 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9499 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9500 [Richard Levitte <levitte@stacken.kth.se>]
9502 *) Fix problems with sizeof(long) == 8.
9503 [Andy Polyakov <appro@fy.chalmers.se>]
9505 *) Change functions to ANSI C.
9508 *) Fix typos in error codes.
9509 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9511 *) Remove defunct assembler files from Configure.
9514 *) SPARC v8 assembler BIGNUM implementation.
9515 [Andy Polyakov <appro@fy.chalmers.se>]
9517 *) Support for Certificate Policies extension: both print and set.
9518 Various additions to support the r2i method this uses.
9521 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9522 return a const string when you are expecting an allocated buffer.
9525 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9526 types DirectoryString and DisplayText.
9529 *) Add code to allow r2i extensions to access the configuration database,
9530 add an LHASH database driver and add several ctx helper functions.
9533 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9534 fail when they extended the size of a BIGNUM.
9537 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9538 support typesafe stack.
9541 *) Fix typo in SSL_[gs]et_options().
9542 [Nils Frostberg <nils@medcom.se>]
9544 *) Delete various functions and files that belonged to the (now obsolete)
9545 old X509V3 handling code.
9548 *) New Configure option "rsaref".
9551 *) Don't auto-generate pem.h.
9554 *) Introduce type-safe ASN.1 SETs.
9557 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9558 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9560 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9561 that links with OpenSSL (well at least cause lots of warnings), but fear
9562 not: the conversion is trivial, and it eliminates loads of evil casts. A
9563 few STACKed things have been converted already. Feel free to convert more.
9564 In the fullness of time, I'll do away with the STACK type altogether.
9567 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9568 specified in <certfile> by updating the entry in the index.txt file.
9569 This way one no longer has to edit the index.txt file manually for
9570 revoking a certificate. The -revoke option does the gory details now.
9571 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9573 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9574 `-text' option at all and this way the `-noout -text' combination was
9575 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9576 [Ralf S. Engelschall]
9578 *) Make sure a corresponding plain text error message exists for the
9579 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9580 verify callback function determined that a certificate was revoked.
9581 [Ralf S. Engelschall]
9583 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9584 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9585 all available cipers including rc5, which was forgotten until now.
9586 In order to let the testing shell script know which algorithms
9587 are available, a new (up to now undocumented) command
9588 "openssl list-cipher-commands" is used.
9591 *) Bugfix: s_client occasionally would sleep in select() when
9592 it should have checked SSL_pending() first.
9595 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9596 the raw DSA values prior to ASN.1 encoding.
9599 *) Tweaks to Configure
9600 [Niels Poppe <niels@netbox.org>]
9602 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9606 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9609 *) New config option to avoid instructions that are illegal on the 80386.
9610 The default code is faster, but requires at least a 486.
9613 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9614 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9615 same as SSL2_VERSION anyway.
9618 *) New "-showcerts" option for s_client.
9621 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9622 application. Various cleanups and fixes.
9625 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9626 modify error routines to work internally. Add error codes and PBE init
9627 to library startup routines.
9630 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9631 packing functions to asn1 and evp. Changed function names and error
9632 codes along the way.
9635 *) PKCS12 integration: and so it begins... First of several patches to
9636 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9637 objects to objects.h
9640 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9641 and display support for Thawte strong extranet extension.
9644 *) Add LinuxPPC support.
9645 [Jeff Dubrule <igor@pobox.org>]
9647 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9648 bn_div_words in alpha.s.
9649 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9651 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9652 OAEP isn't supported when OpenSSL is built with RSAref.
9653 [Ulf Moeller <ulf@fitug.de>]
9655 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9656 so they no longer are missing under -DNOPROTO.
9657 [Soren S. Jorvang <soren@t.dk>]
9660 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9662 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9663 doesn't work when the session is reused. Coming soon!
9666 *) Fix a security hole, that allows sessions to be reused in the wrong
9667 context thus bypassing client cert protection! All software that uses
9668 client certs and session caches in multiple contexts NEEDS PATCHING to
9669 allow session reuse! A fuller solution is in the works.
9670 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9672 *) Some more source tree cleanups (removed obsolete files
9673 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9674 permission on "config" script to be executable) and a fix for the INSTALL
9676 [Ulf Moeller <ulf@fitug.de>]
9678 *) Remove some legacy and erroneous uses of malloc, free instead of
9680 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9682 *) Make rsa_oaep_test return non-zero on error.
9683 [Ulf Moeller <ulf@fitug.de>]
9685 *) Add support for native Solaris shared libraries. Configure
9686 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9687 if someone would make that last step automatic.
9688 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9690 *) ctx_size was not built with the right compiler during "make links". Fixed.
9693 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9694 except NULL ciphers". This means the default cipher list will no longer
9695 enable NULL ciphers. They need to be specifically enabled e.g. with
9696 the string "DEFAULT:eNULL".
9699 *) Fix to RSA private encryption routines: if p < q then it would
9700 occasionally produce an invalid result. This will only happen with
9701 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9704 *) Be less restrictive and allow also `perl util/perlpath.pl
9705 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9706 because this way one can also use an interpreter named `perl5' (which is
9707 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9708 installed as `perl').
9709 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9711 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9712 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9714 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9715 advapi32.lib to Win32 build and change the pem test comparision
9716 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9717 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9718 and crypto/des/ede_cbcm_enc.c.
9721 *) DES quad checksum was broken on big-endian architectures. Fixed.
9724 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9725 Win32 test batch file so it (might) work again. The Win32 test batch file
9726 is horrible: I feel ill....
9729 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9730 in e_os.h. Audit of header files to check ANSI and non ANSI
9731 sections: 10 functions were absent from non ANSI section and not exported
9732 from Windows DLLs. Fixed up libeay.num for new functions.
9735 *) Make `openssl version' output lines consistent.
9736 [Ralf S. Engelschall]
9738 *) Fix Win32 symbol export lists for BIO functions: Added
9739 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9740 to ms/libeay{16,32}.def.
9741 [Ralf S. Engelschall]
9743 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9744 fine under Unix and passes some trivial tests I've now added. But the
9745 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9746 added to make sure no one expects that this stuff really works in the
9747 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9748 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9750 [Ralf S. Engelschall]
9752 *) Fix the generation of two part addresses in perl.
9753 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9755 *) Add config entry for Linux on MIPS.
9756 [John Tobey <jtobey@channel1.com>]
9758 *) Make links whenever Configure is run, unless we are on Windoze.
9761 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9762 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9766 *) Add a useful kludge to allow package maintainers to specify compiler and
9767 other platforms details on the command line without having to patch the
9768 Configure script everytime: One now can use ``perl Configure
9769 <id>:<details>'', i.e. platform ids are allowed to have details appended
9770 to them (seperated by colons). This is treated as there would be a static
9771 pre-configured entry in Configure's %table under key <id> with value
9772 <details> and ``perl Configure <id>'' is called. So, when you want to
9773 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9774 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9775 now, which overrides the FreeBSD-elf entry on-the-fly.
9776 [Ralf S. Engelschall]
9778 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9781 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9782 on the `perl Configure ...' command line. This way one can compile
9783 OpenSSL libraries with Position Independent Code (PIC) which is needed
9784 for linking it into DSOs.
9785 [Ralf S. Engelschall]
9787 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9791 *) Cleaned up the LICENSE document: The official contact for any license
9792 questions now is the OpenSSL core team under openssl-core@openssl.org.
9793 And add a paragraph about the dual-license situation to make sure people
9794 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9795 to the OpenSSL toolkit.
9796 [Ralf S. Engelschall]
9798 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9799 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9800 Additonally cleaned up the `make links' target: Remove unnecessary
9801 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9802 to speed processing and no longer clutter the display with confusing
9803 stuff. Instead only the actually done links are displayed.
9804 [Ralf S. Engelschall]
9806 *) Permit null encryption ciphersuites, used for authentication only. It used
9807 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9808 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9812 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9813 signed attributes when verifying signatures (this would break them),
9814 the detached data encoding was wrong and public keys obtained using
9815 X509_get_pubkey() weren't freed.
9818 *) Add text documentation for the BUFFER functions. Also added a work around
9819 to a Win95 console bug. This was triggered by the password read stuff: the
9820 last character typed gets carried over to the next fread(). If you were
9821 generating a new cert request using 'req' for example then the last
9822 character of the passphrase would be CR which would then enter the first
9826 *) Added the new `Includes OpenSSL Cryptography Software' button as
9827 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9828 button and can be used by applications based on OpenSSL to show the
9829 relationship to the OpenSSL project.
9830 [Ralf S. Engelschall]
9832 *) Remove confusing variables in function signatures in files
9833 ssl/ssl_lib.c and ssl/ssl.h.
9834 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9836 *) Don't install bss_file.c under PREFIX/include/
9837 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9839 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9840 functions that return function pointers and has support for NT specific
9841 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9842 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9843 unsigned to signed types: this was killing the Win32 compile.
9846 *) Add new certificate file to stack functions,
9847 SSL_add_dir_cert_subjects_to_stack() and
9848 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9849 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9850 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9851 This means that Apache-SSL and similar packages don't have to mess around
9852 to add as many CAs as they want to the preferred list.
9855 *) Experiment with doxygen documentation. Currently only partially applied to
9857 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9858 openssl.doxy as the configuration file.
9861 *) Get rid of remaining C++-style comments which strict C compilers hate.
9862 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9864 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9865 compiled in by default: it has problems with large keys.
9868 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9869 DH private keys and/or callback functions which directly correspond to
9870 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9871 is needed for applications which have to configure certificates on a
9872 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9874 For the RSA certificate situation is makes no difference, but
9875 for the DSA certificate situation this fixes the "no shared cipher"
9876 problem where the OpenSSL cipher selection procedure failed because the
9877 temporary keys were not overtaken from the context and the API provided
9878 no way to reconfigure them.
9879 The new functions now let applications reconfigure the stuff and they
9880 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9881 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9882 non-public-API function ssl_cert_instantiate() is used as a helper
9883 function and also to reduce code redundancy inside ssl_rsa.c.
9884 [Ralf S. Engelschall]
9886 *) Move s_server -dcert and -dkey options out of the undocumented feature
9887 area because they are useful for the DSA situation and should be
9888 recognized by the users.
9889 [Ralf S. Engelschall]
9891 *) Fix the cipher decision scheme for export ciphers: the export bits are
9892 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9893 SSL_EXP_MASK. So, the original variable has to be used instead of the
9894 already masked variable.
9895 [Richard Levitte <levitte@stacken.kth.se>]
9897 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9898 [Richard Levitte <levitte@stacken.kth.se>]
9900 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9901 from `int' to `unsigned int' because it's a length and initialized by
9902 EVP_DigestFinal() which expects an `unsigned int *'.
9903 [Richard Levitte <levitte@stacken.kth.se>]
9905 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9906 script. Instead use the usual Shell->Perl transition trick.
9907 [Ralf S. Engelschall]
9909 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9910 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9911 -noout -modulus' as it's already the case for `openssl rsa -noout
9912 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9913 currently the public key is printed (a decision which was already done by
9914 `openssl dsa -modulus' in the past) which serves a similar purpose.
9915 Additionally the NO_RSA no longer completely removes the whole -modulus
9916 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9918 [Ralf S. Engelschall]
9920 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9921 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9922 [Arne Ansper <arne@ats.cyber.ee>]
9924 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9925 to be added. Now both 'req' and 'ca' can use new objects defined in the
9929 *) Add cool BIO that does syslog (or event log on NT).
9930 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9932 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9933 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9934 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9935 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9938 *) Add preliminary config info for new extension code.
9941 *) Make RSA_NO_PADDING really use no padding.
9942 [Ulf Moeller <ulf@fitug.de>]
9944 *) Generate errors when private/public key check is done.
9947 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9948 for some CRL extensions and new objects added.
9951 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9952 key usage extension and fuller support for authority key id.
9955 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9956 padding method for RSA, which is recommended for new applications in PKCS
9957 #1 v2.0 (RFC 2437, October 1998).
9958 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9959 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9960 against Bleichbacher's attack on RSA.
9961 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9964 *) Updates to the new SSL compression code
9965 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9967 *) Fix so that the version number in the master secret, when passed
9968 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9969 (because the server will not accept higher), that the version number
9970 is 0x03,0x01, not 0x03,0x00
9971 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9973 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9974 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9975 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9978 *) Support for RAW extensions where an arbitrary extension can be
9979 created by including its DER encoding. See apps/openssl.cnf for
9983 *) Make sure latest Perl versions don't interpret some generated C array
9984 code as Perl array code in the crypto/err/err_genc.pl script.
9985 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9987 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9988 not many people have the assembler. Various Win32 compilation fixes and
9989 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9993 *) Modify configure script 'Configure' to automatically create crypto/date.h
9994 file under Win32 and also build pem.h from pem.org. New script
9995 util/mkfiles.pl to create the MINFO file on environments that can't do a
9996 'make files': perl util/mkfiles.pl >MINFO should work.
9999 *) Major rework of DES function declarations, in the pursuit of correctness
10000 and purity. As a result, many evil casts evaporated, and some weirdness,
10001 too. You may find this causes warnings in your code. Zapping your evil
10002 casts will probably fix them. Mostly.
10005 *) Fix for a typo in asn1.h. Bug fix to object creation script
10006 obj_dat.pl. It considered a zero in an object definition to mean
10007 "end of object": none of the objects in objects.h have any zeros
10008 so it wasn't spotted.
10009 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10011 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10012 Masking (CBCM). In the absence of test vectors, the best I have been able
10013 to do is check that the decrypt undoes the encrypt, so far. Send me test
10014 vectors if you have them.
10017 *) Correct calculation of key length for export ciphers (too much space was
10018 allocated for null ciphers). This has not been tested!
10021 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10022 message is now correct (it understands "crypto" and "ssl" on its
10023 command line). There is also now an "update" option. This will update
10024 the util/ssleay.num and util/libeay.num files with any new functions.
10026 perl util/mkdef.pl crypto ssl update
10027 it will update them.
10030 *) Overhauled the Perl interface (perl/*):
10031 - ported BN stuff to OpenSSL's different BN library
10032 - made the perl/ source tree CVS-aware
10033 - renamed the package from SSLeay to OpenSSL (the files still contain
10034 their history because I've copied them in the repository)
10035 - removed obsolete files (the test scripts will be replaced
10036 by better Test::Harness variants in the future)
10037 [Ralf S. Engelschall]
10039 *) First cut for a very conservative source tree cleanup:
10040 1. merge various obsolete readme texts into doc/ssleay.txt
10041 where we collect the old documents and readme texts.
10042 2. remove the first part of files where I'm already sure that we no
10043 longer need them because of three reasons: either they are just temporary
10044 files which were left by Eric or they are preserved original files where
10045 I've verified that the diff is also available in the CVS via "cvs diff
10046 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10047 the crypto/md/ stuff).
10048 [Ralf S. Engelschall]
10050 *) More extension code. Incomplete support for subject and issuer alt
10051 name, issuer and authority key id. Change the i2v function parameters
10052 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10053 what that's for :-) Fix to ASN1 macro which messed up
10054 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10057 *) Preliminary support for ENUMERATED type. This is largely copied from the
10061 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10062 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10064 *) Make sure `make rehash' target really finds the `openssl' program.
10065 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10067 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10068 like to hear about it if this slows down other processors.
10071 *) Add CygWin32 platform information to Configure script.
10072 [Alan Batie <batie@aahz.jf.intel.com>]
10074 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10075 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10077 *) New program nseq to manipulate netscape certificate sequences
10080 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10084 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10085 but the BN code had some problems that would cause failures when
10086 doing certificate verification and some other functions.
10087 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10089 *) Add ASN1 and PEM code to support netscape certificate sequences.
10092 *) Add ASN1 and PEM code to support netscape certificate sequences.
10095 *) Add several PKIX and private extended key usage OIDs.
10098 *) Modify the 'ca' program to handle the new extension code. Modify
10099 openssl.cnf for new extension format, add comments.
10102 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10103 and add a sample to openssl.cnf so req -x509 now adds appropriate
10107 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10108 error code, add initial support to X509_print() and x509 application.
10111 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10112 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10113 stuff is currently isolated and isn't even compiled yet.
10116 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10117 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10118 Removed the versions check from X509 routines when loading extensions:
10119 this allows certain broken certificates that don't set the version
10120 properly to be processed.
10123 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10124 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10125 can still be regenerated with "make depend".
10128 *) Spelling mistake in C version of CAST-128.
10129 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10131 *) Changes to the error generation code. The perl script err-code.pl
10132 now reads in the old error codes and retains the old numbers, only
10133 adding new ones if necessary. It also only changes the .err files if new
10134 codes are added. The makefiles have been modified to only insert errors
10135 when needed (to avoid needlessly modifying header files). This is done
10136 by only inserting errors if the .err file is newer than the auto generated
10137 C file. To rebuild all the error codes from scratch (the old behaviour)
10138 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10139 or delete all the .err files.
10142 *) CAST-128 was incorrectly implemented for short keys. The C version has
10143 been fixed, but is untested. The assembler versions are also fixed, but
10144 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10145 to regenerate it if needed.
10146 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10147 Hagino <itojun@kame.net>]
10149 *) File was opened incorrectly in randfile.c.
10150 [Ulf Möller <ulf@fitug.de>]
10152 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10153 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10154 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10155 al: it's just almost always a UTCTime. Note this patch adds new error
10156 codes so do a "make errors" if there are problems.
10159 *) Correct Linux 1 recognition in config.
10160 [Ulf Möller <ulf@fitug.de>]
10162 *) Remove pointless MD5 hash when using DSA keys in ca.
10163 [Anonymous <nobody@replay.com>]
10165 *) Generate an error if given an empty string as a cert directory. Also
10166 generate an error if handed NULL (previously returned 0 to indicate an
10167 error, but didn't set one).
10168 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10170 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10173 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10174 parameters. This was causing a warning which killed off the Win32 compile.
10177 *) Remove C++ style comments from crypto/bn/bn_local.h.
10178 [Neil Costigan <neil.costigan@celocom.com>]
10180 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10181 based on a text string, looking up short and long names and finally
10182 "dot" format. The "dot" format stuff didn't work. Added new function
10183 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10184 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10185 OID is not part of the table.
10188 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10189 X509_LOOKUP_by_alias().
10192 *) Sort openssl functions by name.
10195 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10196 encryption from sample DSA keys (in case anyone is interested the password
10200 *) Make _all_ *_free functions accept a NULL pointer.
10201 [Frans Heymans <fheymans@isaserver.be>]
10203 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10205 [Anonymous <nobody@replay.com>]
10207 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10208 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10210 *) Don't blow it for numeric -newkey arguments to apps/req.
10211 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10213 *) Temp key "for export" tests were wrong in s3_srvr.c.
10214 [Anonymous <nobody@replay.com>]
10216 *) Add prototype for temp key callback functions
10217 SSL_CTX_set_tmp_{rsa,dh}_callback().
10220 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10221 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10224 *) X509_name_add_entry() freed the wrong thing after an error.
10225 [Arne Ansper <arne@ats.cyber.ee>]
10227 *) rsa_eay.c would attempt to free a NULL context.
10228 [Arne Ansper <arne@ats.cyber.ee>]
10230 *) BIO_s_socket() had a broken should_retry() on Windoze.
10231 [Arne Ansper <arne@ats.cyber.ee>]
10233 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10234 [Arne Ansper <arne@ats.cyber.ee>]
10236 *) Make sure the already existing X509_STORE->depth variable is initialized
10237 in X509_STORE_new(), but document the fact that this variable is still
10238 unused in the certificate verification process.
10239 [Ralf S. Engelschall]
10241 *) Fix the various library and apps files to free up pkeys obtained from
10242 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10245 *) Fix reference counting in X509_PUBKEY_get(). This makes
10246 demos/maurice/example2.c work, amongst others, probably.
10247 [Steve Henson and Ben Laurie]
10249 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10250 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10251 are no longer created. This way we have a single and consistent command
10252 line interface `openssl <command>', similar to `cvs <command>'.
10253 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10255 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10256 BIT STRING wrapper always have zero unused bits.
10259 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10262 *) Make the top-level INSTALL documentation easier to understand.
10265 *) Makefiles updated to exit if an error occurs in a sub-directory
10266 make (including if user presses ^C) [Paul Sutton]
10268 *) Make Montgomery context stuff explicit in RSA data structure.
10271 *) Fix build order of pem and err to allow for generated pem.h.
10274 *) Fix renumbering bug in X509_NAME_delete_entry().
10277 *) Enhanced the err-ins.pl script so it makes the error library number
10278 global and can add a library name. This is needed for external ASN1 and
10279 other error libraries.
10282 *) Fixed sk_insert which never worked properly.
10285 *) Fix ASN1 macros so they can handle indefinite length construted
10286 EXPLICIT tags. Some non standard certificates use these: they can now
10290 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10291 into a single doc/ssleay.txt bundle. This way the information is still
10292 preserved but no longer messes up this directory. Now it's new room for
10293 the new set of documenation files.
10294 [Ralf S. Engelschall]
10296 *) SETs were incorrectly DER encoded. This was a major pain, because they
10297 shared code with SEQUENCEs, which aren't coded the same. This means that
10298 almost everything to do with SETs or SEQUENCEs has either changed name or
10299 number of arguments.
10300 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10302 *) Fix test data to work with the above.
10305 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10306 was already fixed by Eric for 0.9.1 it seems.
10307 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10309 *) Autodetect FreeBSD3.
10312 *) Fix various bugs in Configure. This affects the following platforms:
10316 unixware-2.0-pentium
10320 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10321 before they are needed.
10324 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10328 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10330 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10331 changed SSLeay to OpenSSL in version strings.
10332 [Ralf S. Engelschall]
10334 *) Some fixups to the top-level documents.
10337 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10338 because the symlink to include/ was missing.
10339 [Ralf S. Engelschall]
10341 *) Incorporated the popular no-RSA/DSA-only patches
10342 which allow to compile a RSA-free SSLeay.
10343 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10345 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10346 when "ssleay" is still not found.
10347 [Ralf S. Engelschall]
10349 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10350 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10352 *) Updated the README file.
10353 [Ralf S. Engelschall]
10355 *) Added various .cvsignore files in the CVS repository subdirs
10356 to make a "cvs update" really silent.
10357 [Ralf S. Engelschall]
10359 *) Recompiled the error-definition header files and added
10360 missing symbols to the Win32 linker tables.
10361 [Ralf S. Engelschall]
10363 *) Cleaned up the top-level documents;
10364 o new files: CHANGES and LICENSE
10365 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10366 o merged COPYRIGHT into LICENSE
10367 o removed obsolete TODO file
10368 o renamed MICROSOFT to INSTALL.W32
10369 [Ralf S. Engelschall]
10371 *) Removed dummy files from the 0.9.1b source tree:
10372 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10373 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10374 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10375 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10376 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10377 [Ralf S. Engelschall]
10379 *) Added various platform portability fixes.
10382 *) The Genesis of the OpenSSL rpject:
10383 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10384 Young and Tim J. Hudson created while they were working for C2Net until
10386 [The OpenSSL Project]
10389 Changes between 0.9.0b and 0.9.1b [not released]
10391 *) Updated a few CA certificates under certs/
10394 *) Changed some BIGNUM api stuff.
10397 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10398 DGUX x86, Linux Alpha, etc.
10401 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10402 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10406 *) Add -strparse option to asn1pars program which parses nested
10408 [Dr Stephen Henson <shenson@bigfoot.com>]
10410 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10413 *) DSA fix for "ca" program.
10416 *) Added "-genkey" option to "dsaparam" program.
10419 *) Added RIPE MD160 (rmd160) message digest.
10422 *) Added -a (all) option to "ssleay version" command.
10425 *) Added PLATFORM define which is the id given to Configure.
10428 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10431 *) Extended the ASN.1 parser routines.
10434 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10437 *) Added a BN_CTX to the BN library.
10440 *) Fixed the weak key values in DES library
10443 *) Changed API in EVP library for cipher aliases.
10446 *) Added support for RC2/64bit cipher.
10449 *) Converted the lhash library to the crypto/mem.c functions.
10452 *) Added more recognized ASN.1 object ids.
10455 *) Added more RSA padding checks for SSL/TLS.
10458 *) Added BIO proxy/filter functionality.
10461 *) Added extra_certs to SSL_CTX which can be used
10462 send extra CA certificates to the client in the CA cert chain sending
10463 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10466 *) Now Fortezza is denied in the authentication phase because
10467 this is key exchange mechanism is not supported by SSLeay at all.
10470 *) Additional PKCS1 checks.
10473 *) Support the string "TLSv1" for all TLS v1 ciphers.
10476 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10477 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10480 *) Fixed a few memory leaks.
10483 *) Fixed various code and comment typos.
10486 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10487 bytes sent in the client random.
10488 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob