5 Changes between 1.0.1p and 1.0.1q [3 Dec 2015]
7 *) Certificate verify crash with missing PSS parameter
9 The signature verification routines will crash with a NULL pointer
10 dereference if presented with an ASN.1 signature using the RSA PSS
11 algorithm and absent mask generation function parameter. Since these
12 routines are used to verify certificate signature algorithms this can be
13 used to crash any certificate verification operation and exploited in a
14 DoS attack. Any application which performs certificate verification is
15 vulnerable including OpenSSL clients and servers which enable client
18 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
22 *) X509_ATTRIBUTE memory leak
24 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
25 memory. This structure is used by the PKCS#7 and CMS routines so any
26 application which reads PKCS#7 or CMS data from untrusted sources is
27 affected. SSL/TLS is not affected.
29 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
34 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
35 This changes the decoding behaviour for some invalid messages,
36 though the change is mostly in the more lenient direction, and
37 legacy behaviour is preserved as much as possible.
40 *) In DSA_generate_parameters_ex, if the provided seed is too short,
42 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
44 Changes between 1.0.1o and 1.0.1p [9 Jul 2015]
46 *) Alternate chains certificate forgery
48 During certificate verfification, OpenSSL will attempt to find an
49 alternative certificate chain if the first attempt to build such a chain
50 fails. An error in the implementation of this logic can mean that an
51 attacker could cause certain checks on untrusted certificates to be
52 bypassed, such as the CA flag, enabling them to use a valid leaf
53 certificate to act as a CA and "issue" an invalid certificate.
55 This issue was reported to OpenSSL by Adam Langley/David Benjamin
60 *) Race condition handling PSK identify hint
62 If PSK identity hints are received by a multi-threaded client then
63 the values are wrongly updated in the parent SSL_CTX structure. This can
64 result in a race condition potentially leading to a double free of the
69 Changes between 1.0.1n and 1.0.1o [12 Jun 2015]
70 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
71 incompatibility in the handling of HMAC. The previous ABI has now been
74 Changes between 1.0.1m and 1.0.1n [11 Jun 2015]
76 *) Malformed ECParameters causes infinite loop
78 When processing an ECParameters structure OpenSSL enters an infinite loop
79 if the curve specified is over a specially malformed binary polynomial
82 This can be used to perform denial of service against any
83 system which processes public keys, certificate requests or
84 certificates. This includes TLS clients and TLS servers with
85 client authentication enabled.
87 This issue was reported to OpenSSL by Joseph Barr-Pixton.
91 *) Exploitable out-of-bounds read in X509_cmp_time
93 X509_cmp_time does not properly check the length of the ASN1_TIME
94 string and can read a few bytes out of bounds. In addition,
95 X509_cmp_time accepts an arbitrary number of fractional seconds in the
98 An attacker can use this to craft malformed certificates and CRLs of
99 various sizes and potentially cause a segmentation fault, resulting in
100 a DoS on applications that verify certificates or CRLs. TLS clients
101 that verify CRLs are affected. TLS clients and servers with client
102 authentication enabled may be affected if they use custom verification
105 This issue was reported to OpenSSL by Robert Swiecki (Google), and
106 independently by Hanno Böck.
110 *) PKCS7 crash with missing EnvelopedContent
112 The PKCS#7 parsing code does not handle missing inner EncryptedContent
113 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
114 with missing content and trigger a NULL pointer dereference on parsing.
116 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
117 structures from untrusted sources are affected. OpenSSL clients and
118 servers are not affected.
120 This issue was reported to OpenSSL by Michal Zalewski (Google).
124 *) CMS verify infinite loop with unknown hash function
126 When verifying a signedData message the CMS code can enter an infinite loop
127 if presented with an unknown hash function OID. This can be used to perform
128 denial of service against any system which verifies signedData messages using
130 This issue was reported to OpenSSL by Johannes Bauer.
134 *) Race condition handling NewSessionTicket
136 If a NewSessionTicket is received by a multi-threaded client when attempting to
137 reuse a previous ticket then a race condition can occur potentially leading to
138 a double free of the ticket data.
142 *) Reject DH handshakes with parameters shorter than 768 bits.
143 [Kurt Roeckx and Emilia Kasper]
145 *) dhparam: generate 2048-bit parameters by default.
146 [Kurt Roeckx and Emilia Kasper]
148 Changes between 1.0.1l and 1.0.1m [19 Mar 2015]
150 *) Segmentation fault in ASN1_TYPE_cmp fix
152 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
153 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
154 certificate signature algorithm consistency this can be used to crash any
155 certificate verification operation and exploited in a DoS attack. Any
156 application which performs certificate verification is vulnerable including
157 OpenSSL clients and servers which enable client authentication.
161 *) ASN.1 structure reuse memory corruption fix
163 Reusing a structure in ASN.1 parsing may allow an attacker to cause
164 memory corruption via an invalid write. Such reuse is and has been
165 strongly discouraged and is believed to be rare.
167 Applications that parse structures containing CHOICE or ANY DEFINED BY
168 components may be affected. Certificate parsing (d2i_X509 and related
169 functions) are however not affected. OpenSSL clients and servers are
174 *) PKCS7 NULL pointer dereferences fix
176 The PKCS#7 parsing code does not handle missing outer ContentInfo
177 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
178 missing content and trigger a NULL pointer dereference on parsing.
180 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
181 otherwise parse PKCS#7 structures from untrusted sources are
182 affected. OpenSSL clients and servers are not affected.
184 This issue was reported to OpenSSL by Michal Zalewski (Google).
188 *) DoS via reachable assert in SSLv2 servers fix
190 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
191 servers that both support SSLv2 and enable export cipher suites by sending
192 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
194 This issue was discovered by Sean Burford (Google) and Emilia Käsper
195 (OpenSSL development team).
199 *) Use After Free following d2i_ECPrivatekey error fix
201 A malformed EC private key file consumed via the d2i_ECPrivateKey function
202 could cause a use after free condition. This, in turn, could cause a double
203 free in several private key parsing functions (such as d2i_PrivateKey
204 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
205 for applications that receive EC private keys from untrusted
206 sources. This scenario is considered rare.
208 This issue was discovered by the BoringSSL project and fixed in their
213 *) X509_to_X509_REQ NULL pointer deref fix
215 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
216 the certificate key is invalid. This function is rarely used in practice.
218 This issue was discovered by Brian Carpenter.
222 *) Removed the export ciphers from the DEFAULT ciphers
225 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
227 *) Build fixes for the Windows and OpenVMS platforms
228 [Matt Caswell and Richard Levitte]
230 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
232 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
233 message can cause a segmentation fault in OpenSSL due to a NULL pointer
234 dereference. This could lead to a Denial Of Service attack. Thanks to
235 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
239 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
240 dtls1_buffer_record function under certain conditions. In particular this
241 could occur if an attacker sent repeated DTLS records with the same
242 sequence number but for the next epoch. The memory leak could be exploited
243 by an attacker in a Denial of Service attack through memory exhaustion.
244 Thanks to Chris Mueller for reporting this issue.
248 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
249 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
250 method would be set to NULL which could later result in a NULL pointer
251 dereference. Thanks to Frank Schmirler for reporting this issue.
255 *) Abort handshake if server key exchange message is omitted for ephemeral
258 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
259 reporting this issue.
263 *) Remove non-export ephemeral RSA code on client and server. This code
264 violated the TLS standard by allowing the use of temporary RSA keys in
265 non-export ciphersuites and could be used by a server to effectively
266 downgrade the RSA key length used to a value smaller than the server
267 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
268 INRIA or reporting this issue.
272 *) Fixed issue where DH client certificates are accepted without verification.
273 An OpenSSL server will accept a DH certificate for client authentication
274 without the certificate verify message. This effectively allows a client to
275 authenticate without the use of a private key. This only affects servers
276 which trust a client certificate authority which issues certificates
277 containing DH keys: these are extremely rare and hardly ever encountered.
278 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
283 *) Ensure that the session ID context of an SSL is updated when its
284 SSL_CTX is updated via SSL_set_SSL_CTX.
286 The session ID context is typically set from the parent SSL_CTX,
287 and can vary with the CTX.
290 *) Fix various certificate fingerprint issues.
292 By using non-DER or invalid encodings outside the signed portion of a
293 certificate the fingerprint can be changed without breaking the signature.
294 Although no details of the signed portion of the certificate can be changed
295 this can cause problems with some applications: e.g. those using the
296 certificate fingerprint for blacklists.
298 1. Reject signatures with non zero unused bits.
300 If the BIT STRING containing the signature has non zero unused bits reject
301 the signature. All current signature algorithms require zero unused bits.
303 2. Check certificate algorithm consistency.
305 Check the AlgorithmIdentifier inside TBS matches the one in the
306 certificate signature. NB: this will result in signature failure
307 errors for some broken certificates.
309 Thanks to Konrad Kraszewski from Google for reporting this issue.
311 3. Check DSA/ECDSA signatures use DER.
313 Reencode DSA/ECDSA signatures and compare with the original received
314 signature. Return an error if there is a mismatch.
316 This will reject various cases including garbage after signature
317 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
318 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
319 (negative or with leading zeroes).
321 Further analysis was conducted and fixes were developed by Stephen Henson
322 of the OpenSSL core team.
327 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
328 results on some platforms, including x86_64. This bug occurs at random
329 with a very low probability, and is not known to be exploitable in any
330 way, though its exact impact is difficult to determine. Thanks to Pieter
331 Wuille (Blockstream) who reported this issue and also suggested an initial
332 fix. Further analysis was conducted by the OpenSSL development team and
333 Adam Langley of Google. The final fix was developed by Andy Polyakov of
334 the OpenSSL core team.
338 *) Do not resume sessions on the server if the negotiated protocol
339 version does not match the session's version. Resuming with a different
340 version, while not strictly forbidden by the RFC, is of questionable
341 sanity and breaks all known clients.
342 [David Benjamin, Emilia Käsper]
344 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
345 early CCS messages during renegotiation. (Note that because
346 renegotiation is encrypted, this early CCS was not exploitable.)
349 *) Tighten client-side session ticket handling during renegotiation:
350 ensure that the client only accepts a session ticket if the server sends
351 the extension anew in the ServerHello. Previously, a TLS client would
352 reuse the old extension state and thus accept a session ticket if one was
353 announced in the initial ServerHello.
355 Similarly, ensure that the client requires a session ticket if one
356 was advertised in the ServerHello. Previously, a TLS client would
357 ignore a missing NewSessionTicket message.
360 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
364 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
365 sends a carefully crafted handshake message, to cause OpenSSL to fail
366 to free up to 64k of memory causing a memory leak. This could be
367 exploited in a Denial Of Service attack. This issue affects OpenSSL
368 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
369 whether SRTP is used or configured. Implementations of OpenSSL that
370 have been compiled with OPENSSL_NO_SRTP defined are not affected.
372 The fix was developed by the OpenSSL team.
376 *) Session Ticket Memory Leak.
378 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
379 integrity of that ticket is first verified. In the event of a session
380 ticket integrity check failing, OpenSSL will fail to free memory
381 causing a memory leak. By sending a large number of invalid session
382 tickets an attacker could exploit this issue in a Denial Of Service
387 *) Build option no-ssl3 is incomplete.
389 When OpenSSL is configured with "no-ssl3" as a build option, servers
390 could accept and complete a SSL 3.0 handshake, and clients could be
391 configured to send them.
393 [Akamai and the OpenSSL team]
395 *) Add support for TLS_FALLBACK_SCSV.
396 Client applications doing fallback retries should call
397 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
399 [Adam Langley, Bodo Moeller]
401 *) Add additional DigestInfo checks.
403 Reencode DigestInto in DER and check against the original when
404 verifying RSA signature: this will reject any improperly encoded
405 DigestInfo structures.
407 Note: this is a precautionary measure and no attacks are currently known.
411 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
413 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
414 SRP code can be overrun an internal buffer. Add sanity check that
415 g, A, B < N to SRP code.
417 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
418 Group for discovering this issue.
422 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
423 TLS 1.0 instead of higher protocol versions when the ClientHello message
424 is badly fragmented. This allows a man-in-the-middle attacker to force a
425 downgrade to TLS 1.0 even if both the server and the client support a
426 higher protocol version, by modifying the client's TLS records.
428 Thanks to David Benjamin and Adam Langley (Google) for discovering and
429 researching this issue.
433 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
434 to a denial of service attack. A malicious server can crash the client
435 with a null pointer dereference (read) by specifying an anonymous (EC)DH
436 ciphersuite and sending carefully crafted handshake messages.
438 Thanks to Felix Gröbert (Google) for discovering and researching this
443 *) By sending carefully crafted DTLS packets an attacker could cause openssl
444 to leak memory. This can be exploited through a Denial of Service attack.
445 Thanks to Adam Langley for discovering and researching this issue.
449 *) An attacker can force openssl to consume large amounts of memory whilst
450 processing DTLS handshake messages. This can be exploited through a
451 Denial of Service attack.
452 Thanks to Adam Langley for discovering and researching this issue.
456 *) An attacker can force an error condition which causes openssl to crash
457 whilst processing DTLS packets due to memory being freed twice. This
458 can be exploited through a Denial of Service attack.
459 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
464 *) If a multithreaded client connects to a malicious server using a resumed
465 session and the server sends an ec point format extension it could write
466 up to 255 bytes to freed memory.
468 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
473 *) A malicious server can crash an OpenSSL client with a null pointer
474 dereference (read) by specifying an SRP ciphersuite even though it was not
475 properly negotiated with the client. This can be exploited through a
476 Denial of Service attack.
478 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
479 discovering and researching this issue.
483 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
484 X509_name_oneline, X509_name_print_ex et al. to leak some information
485 from the stack. Applications may be affected if they echo pretty printing
486 output to the attacker.
488 Thanks to Ivan Fratric (Google) for discovering this issue.
490 [Emilia Käsper, and Steve Henson]
492 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
493 for corner cases. (Certain input points at infinity could lead to
494 bogus results, with non-infinity inputs mapped to infinity too.)
497 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
499 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
500 handshake can force the use of weak keying material in OpenSSL
501 SSL/TLS clients and servers.
503 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
504 researching this issue. (CVE-2014-0224)
505 [KIKUCHI Masashi, Steve Henson]
507 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
508 OpenSSL DTLS client the code can be made to recurse eventually crashing
511 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
513 [Imre Rad, Steve Henson]
515 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
516 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
517 client or server. This is potentially exploitable to run arbitrary
518 code on a vulnerable client or server.
520 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
521 [Jüri Aedla, Steve Henson]
523 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
524 are subject to a denial of service attack.
526 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
527 this issue. (CVE-2014-3470)
528 [Felix Gröbert, Ivan Fratric, Steve Henson]
530 *) Harmonize version and its documentation. -f flag is used to display
532 [mancha <mancha1@zoho.com>]
534 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
536 [mancha <mancha1@zoho.com>]
538 *) Fix some double frees. These are not thought to be exploitable.
539 [mancha <mancha1@zoho.com>]
541 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
543 *) A missing bounds check in the handling of the TLS heartbeat extension
544 can be used to reveal up to 64k of memory to a connected client or
547 Thanks for Neel Mehta of Google Security for discovering this bug and to
548 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
549 preparing the fix (CVE-2014-0160)
550 [Adam Langley, Bodo Moeller]
552 *) Fix for the attack described in the paper "Recovering OpenSSL
553 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
554 by Yuval Yarom and Naomi Benger. Details can be obtained from:
555 http://eprint.iacr.org/2014/140
557 Thanks to Yuval Yarom and Naomi Benger for discovering this
558 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
559 [Yuval Yarom and Naomi Benger]
561 *) TLS pad extension: draft-agl-tls-padding-03
563 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
564 TLS client Hello record length value would otherwise be > 255 and
565 less that 512 pad with a dummy extension containing zeroes so it
566 is at least 512 bytes long.
568 [Adam Langley, Steve Henson]
570 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
572 *) Fix for TLS record tampering bug. A carefully crafted invalid
573 handshake could crash OpenSSL with a NULL pointer exception.
574 Thanks to Anton Johansson for reporting this issues.
577 *) Keep original DTLS digest and encryption contexts in retransmission
578 structures so we can use the previous session parameters if they need
579 to be resent. (CVE-2013-6450)
582 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
583 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
584 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
585 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
586 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
587 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
588 [Rob Stradling, Adam Langley]
590 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
592 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
593 supporting platforms or when small records were transferred.
594 [Andy Polyakov, Steve Henson]
596 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
598 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
600 This addresses the flaw in CBC record processing discovered by
601 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
602 at: http://www.isg.rhul.ac.uk/tls/
604 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
605 Security Group at Royal Holloway, University of London
606 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
607 Emilia Käsper for the initial patch.
609 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
611 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
612 ciphersuites which can be exploited in a denial of service attack.
613 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
614 and detecting this bug and to Wolfgang Ettlinger
615 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
619 *) Return an error when checking OCSP signatures when key is NULL.
620 This fixes a DoS attack. (CVE-2013-0166)
623 *) Make openssl verify return errors.
624 [Chris Palmer <palmer@google.com> and Ben Laurie]
626 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
627 the right response is stapled. Also change SSL_get_certificate()
628 so it returns the certificate actually sent.
629 See http://rt.openssl.org/Ticket/Display.html?id=2836.
630 [Rob Stradling <rob.stradling@comodo.com>]
632 *) Fix possible deadlock when decoding public keys.
635 *) Don't use TLS 1.0 record version number in initial client hello
639 Changes between 1.0.1b and 1.0.1c [10 May 2012]
641 *) Sanity check record length before skipping explicit IV in TLS
642 1.2, 1.1 and DTLS to fix DoS attack.
644 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
645 fuzzing as a service testing platform.
649 *) Initialise tkeylen properly when encrypting CMS messages.
650 Thanks to Solar Designer of Openwall for reporting this issue.
653 *) In FIPS mode don't try to use composite ciphers as they are not
657 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
659 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
660 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
661 mean any application compiled against OpenSSL 1.0.0 headers setting
662 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
663 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
664 0x10000000L Any application which was previously compiled against
665 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
666 will need to be recompiled as a result. Letting be results in
667 inability to disable specifically TLS 1.1 and in client context,
668 in unlike event, limit maximum offered version to TLS 1.0 [see below].
671 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
672 disable just protocol X, but all protocols above X *if* there are
673 protocols *below* X still enabled. In more practical terms it means
674 that if application wants to disable TLS1.0 in favor of TLS1.1 and
675 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
676 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
680 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
682 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
683 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
684 in CRYPTO_realloc_clean.
686 Thanks to Tavis Ormandy, Google Security Team, for discovering this
687 issue and to Adam Langley <agl@chromium.org> for fixing it.
689 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
691 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
694 *) Workarounds for some broken servers that "hang" if a client hello
695 record length exceeds 255 bytes.
697 1. Do not use record version number > TLS 1.0 in initial client
698 hello: some (but not all) hanging servers will now work.
699 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
700 the number of ciphers sent in the client hello. This should be
701 set to an even number, such as 50, for example by passing:
702 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
703 Most broken servers should now work.
704 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
705 TLS 1.2 client support entirely.
708 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
711 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
713 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
714 STRING form instead of a DigestInfo.
717 *) The format used for MDC2 RSA signatures is inconsistent between EVP
718 and the RSA_sign/RSA_verify functions. This was made more apparent when
719 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
720 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
721 the correct format in RSA_verify so both forms transparently work.
724 *) Some servers which support TLS 1.0 can choke if we initially indicate
725 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
726 encrypted premaster secret. As a workaround use the maximum pemitted
727 client version in client hello, this should keep such servers happy
728 and still work with previous versions of OpenSSL.
731 *) Add support for TLS/DTLS heartbeats.
732 [Robin Seggelmann <seggelmann@fh-muenster.de>]
734 *) Add support for SCTP.
735 [Robin Seggelmann <seggelmann@fh-muenster.de>]
737 *) Improved PRNG seeding for VOS.
738 [Paul Green <Paul.Green@stratus.com>]
740 *) Extensive assembler packs updates, most notably:
742 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
743 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
744 - x86_64: bit-sliced AES implementation;
745 - ARM: NEON support, contemporary platforms optimizations;
746 - s390x: z196 support;
747 - *: GHASH and GF(2^m) multiplication implementations;
751 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
752 (removal of unnecessary code)
753 [Peter Sylvester <peter.sylvester@edelweb.fr>]
755 *) Add TLS key material exporter from RFC 5705.
758 *) Add DTLS-SRTP negotiation from RFC 5764.
761 *) Add Next Protocol Negotiation,
762 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
763 disabled with a no-npn flag to config or Configure. Code donated
765 [Adam Langley <agl@google.com> and Ben Laurie]
767 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
768 NIST-P256, NIST-P521, with constant-time single point multiplication on
769 typical inputs. Compiler support for the nonstandard type __uint128_t is
770 required to use this (present in gcc 4.4 and later, for 64-bit builds).
771 Code made available under Apache License version 2.0.
773 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
774 line to include this in your build of OpenSSL, and run "make depend" (or
775 "make update"). This enables the following EC_METHODs:
777 EC_GFp_nistp224_method()
778 EC_GFp_nistp256_method()
779 EC_GFp_nistp521_method()
781 EC_GROUP_new_by_curve_name() will automatically use these (while
782 EC_GROUP_new_curve_GFp() currently prefers the more flexible
784 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
786 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
787 all platforms. Move ssize_t definition from e_os.h to the public
788 header file e_os2.h as it now appears in public header file cms.h
791 *) New -sigopt option to the ca, req and x509 utilities. Additional
792 signature parameters can be passed using this option and in
796 *) Add RSA PSS signing function. This will generate and set the
797 appropriate AlgorithmIdentifiers for PSS based on those in the
798 corresponding EVP_MD_CTX structure. No application support yet.
801 *) Support for companion algorithm specific ASN1 signing routines.
802 New function ASN1_item_sign_ctx() signs a pre-initialised
803 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
804 the appropriate parameters.
807 *) Add new algorithm specific ASN1 verification initialisation function
808 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
809 handling will be the same no matter what EVP_PKEY_METHOD is used.
810 Add a PSS handler to support verification of PSS signatures: checked
811 against a number of sample certificates.
814 *) Add signature printing for PSS. Add PSS OIDs.
815 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
817 *) Add algorithm specific signature printing. An individual ASN1 method
818 can now print out signatures instead of the standard hex dump.
820 More complex signatures (e.g. PSS) can print out more meaningful
821 information. Include DSA version that prints out the signature
825 *) Password based recipient info support for CMS library: implementing
829 *) Split password based encryption into PBES2 and PBKDF2 functions. This
830 neatly separates the code into cipher and PBE sections and is required
831 for some algorithms that split PBES2 into separate pieces (such as
835 *) Session-handling fixes:
836 - Fix handling of connections that are resuming with a session ID,
837 but also support Session Tickets.
838 - Fix a bug that suppressed issuing of a new ticket if the client
839 presented a ticket with an expired session.
840 - Try to set the ticket lifetime hint to something reasonable.
841 - Make tickets shorter by excluding irrelevant information.
842 - On the client side, don't ignore renewed tickets.
843 [Adam Langley, Bodo Moeller (Google)]
845 *) Fix PSK session representation.
848 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
850 This work was sponsored by Intel.
853 *) Add GCM support to TLS library. Some custom code is needed to split
854 the IV between the fixed (from PRF) and explicit (from TLS record)
855 portions. This adds all GCM ciphersuites supported by RFC5288 and
856 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
857 add a special AESGCM string for GCM only.
860 *) Expand range of ctrls for AES GCM. Permit setting invocation
861 field on decrypt and retrieval of invocation field only on encrypt.
864 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
865 As required by RFC5289 these ciphersuites cannot be used if for
866 versions of TLS earlier than 1.2.
869 *) For FIPS capable OpenSSL interpret a NULL default public key method
870 as unset and return the appopriate default but do *not* set the default.
871 This means we can return the appopriate method in applications that
872 swicth between FIPS and non-FIPS modes.
875 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
876 ENGINE is used then we cannot handle that in the FIPS module so we
877 keep original code iff non-FIPS operations are allowed.
880 *) Add -attime option to openssl utilities.
881 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
883 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
886 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
887 FIPS EC methods unconditionally for now.
890 *) New build option no-ec2m to disable characteristic 2 code.
893 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
894 all cases can be covered as some introduce binary incompatibilities.
897 *) Redirect RSA operations to FIPS module including keygen,
898 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
901 *) Add similar low level API blocking to ciphers.
904 *) Low level digest APIs are not approved in FIPS mode: any attempt
905 to use these will cause a fatal error. Applications that *really* want
906 to use them can use the private_* version instead.
909 *) Redirect cipher operations to FIPS module for FIPS builds.
912 *) Redirect digest operations to FIPS module for FIPS builds.
915 *) Update build system to add "fips" flag which will link in fipscanister.o
916 for static and shared library builds embedding a signature if needed.
919 *) Output TLS supported curves in preference order instead of numerical
920 order. This is currently hardcoded for the highest order curves first.
921 This should be configurable so applications can judge speed vs strength.
924 *) Add TLS v1.2 server support for client authentication.
927 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
931 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
932 FIPS modules versions.
935 *) Add TLS v1.2 client side support for client authentication. Keep cache
936 of handshake records longer as we don't know the hash algorithm to use
937 until after the certificate request message is received.
940 *) Initial TLS v1.2 client support. Add a default signature algorithms
941 extension including all the algorithms we support. Parse new signature
942 format in client key exchange. Relax some ECC signing restrictions for
943 TLS v1.2 as indicated in RFC5246.
946 *) Add server support for TLS v1.2 signature algorithms extension. Switch
947 to new signature format when needed using client digest preference.
948 All server ciphersuites should now work correctly in TLS v1.2. No client
949 support yet and no support for client certificates.
952 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
953 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
954 ciphersuites. At present only RSA key exchange ciphersuites work with
955 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
956 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
957 and version checking.
960 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
961 with this defined it will not be affected by any changes to ssl internal
962 structures. Add several utility functions to allow openssl application
963 to work with OPENSSL_NO_SSL_INTERN defined.
967 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
969 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
972 *) Permit abbreviated handshakes when renegotiating using the function
973 SSL_renegotiate_abbreviated().
974 [Robin Seggelmann <seggelmann@fh-muenster.de>]
976 *) Add call to ENGINE_register_all_complete() to
977 ENGINE_load_builtin_engines(), so some implementations get used
978 automatically instead of needing explicit application support.
981 *) Add support for TLS key exporter as described in RFC5705.
982 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
984 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
985 a few changes are required:
987 Add SSL_OP_NO_TLSv1_1 flag.
989 Update version checking logic to handle version 1.1.
990 Add explicit IV handling (ported from DTLS code).
991 Add command line options to s_client/s_server.
994 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
996 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
997 in CMS and PKCS7 code. When RSA decryption fails use a random key for
998 content decryption and always return the same error. Note: this attack
999 needs on average 2^20 messages so it only affects automated senders. The
1000 old behaviour can be reenabled in the CMS code by setting the
1001 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1002 an MMA defence is not necessary.
1003 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1004 this issue. (CVE-2012-0884)
1007 *) Fix CVE-2011-4619: make sure we really are receiving a
1008 client hello before rejecting multiple SGC restarts. Thanks to
1009 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1012 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1014 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1015 Thanks to Antonio Martin, Enterprise Secure Access Research and
1016 Development, Cisco Systems, Inc. for discovering this bug and
1017 preparing a fix. (CVE-2012-0050)
1020 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1022 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1023 of the Vaudenay padding oracle attack on CBC mode encryption
1024 which enables an efficient plaintext recovery attack against
1025 the OpenSSL implementation of DTLS. Their attack exploits timing
1026 differences arising during decryption processing. A research
1027 paper describing this attack can be found at:
1028 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1029 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1030 Security Group at Royal Holloway, University of London
1031 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1032 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1033 for preparing the fix. (CVE-2011-4108)
1034 [Robin Seggelmann, Michael Tuexen]
1036 *) Clear bytes used for block padding of SSL 3.0 records.
1038 [Adam Langley (Google)]
1040 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1041 Kadianakis <desnacked@gmail.com> for discovering this issue and
1042 Adam Langley for preparing the fix. (CVE-2011-4619)
1043 [Adam Langley (Google)]
1045 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1046 [Andrey Kulikov <amdeich@gmail.com>]
1048 *) Prevent malformed RFC3779 data triggering an assertion failure.
1049 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1050 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1051 [Rob Austein <sra@hactrn.net>]
1053 *) Improved PRNG seeding for VOS.
1054 [Paul Green <Paul.Green@stratus.com>]
1056 *) Fix ssl_ciph.c set-up race.
1057 [Adam Langley (Google)]
1059 *) Fix spurious failures in ecdsatest.c.
1060 [Emilia Käsper (Google)]
1062 *) Fix the BIO_f_buffer() implementation (which was mixing different
1063 interpretations of the '..._len' fields).
1064 [Adam Langley (Google)]
1066 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1067 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1068 threads won't reuse the same blinding coefficients.
1070 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1071 lock to call BN_BLINDING_invert_ex, and avoids one use of
1072 BN_BLINDING_update for each BN_BLINDING structure (previously,
1073 the last update always remained unused).
1074 [Emilia Käsper (Google)]
1076 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1077 [Bob Buckholz (Google)]
1079 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1081 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1082 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1083 [Kaspar Brand <ossl@velox.ch>]
1085 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1086 for multi-threaded use of ECDH. (CVE-2011-3210)
1087 [Adam Langley (Google)]
1089 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1092 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1093 signature public key algorithm by using OID xref utilities instead.
1094 Before this you could only use some ECC ciphersuites with SHA1 only.
1097 *) Add protection against ECDSA timing attacks as mentioned in the paper
1098 by Billy Bob Brumley and Nicola Tuveri, see:
1100 http://eprint.iacr.org/2011/232.pdf
1102 [Billy Bob Brumley and Nicola Tuveri]
1104 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1106 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1107 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1109 *) Fix bug in string printing code: if *any* escaping is enabled we must
1110 escape the escape character (backslash) or the resulting string is
1114 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1116 *) Disable code workaround for ancient and obsolete Netscape browsers
1117 and servers: an attacker can use it in a ciphersuite downgrade attack.
1118 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1121 *) Fixed J-PAKE implementation error, originally discovered by
1122 Sebastien Martini, further info and confirmation from Stefan
1123 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1126 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1128 *) Fix extension code to avoid race conditions which can result in a buffer
1129 overrun vulnerability: resumed sessions must not be modified as they can
1130 be shared by multiple threads. CVE-2010-3864
1133 *) Fix WIN32 build system to correctly link an ENGINE directory into
1137 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1139 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1141 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1143 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1145 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1146 context. The operation can be customised via the ctrl mechanism in
1147 case ENGINEs want to include additional functionality.
1150 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1153 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1154 output hashes compatible with older versions of OpenSSL.
1155 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1157 *) Fix compression algorithm handling: if resuming a session use the
1158 compression algorithm of the resumed session instead of determining
1159 it from client hello again. Don't allow server to change algorithm.
1162 *) Add load_crls() function to apps tidying load_certs() too. Add option
1163 to verify utility to allow additional CRLs to be included.
1166 *) Update OCSP request code to permit adding custom headers to the request:
1167 some responders need this.
1170 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1172 [Julia Lawall <julia@diku.dk>]
1174 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1175 needlessly dereferenced structures, used obsolete functions and
1176 didn't handle all updated verify codes correctly.
1179 *) Disable MD2 in the default configuration.
1182 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1183 indicate the initial BIO being pushed or popped. This makes it possible
1184 to determine whether the BIO is the one explicitly called or as a result
1185 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1186 it handles reference counts correctly and doesn't zero out the I/O bio
1187 when it is not being explicitly popped. WARNING: applications which
1188 included workarounds for the old buggy behaviour will need to be modified
1189 or they could free up already freed BIOs.
1192 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1193 renaming to all platforms (within the 0.9.8 branch, this was
1194 done conditionally on Netware platforms to avoid a name clash).
1195 [Guenter <lists@gknw.net>]
1197 *) Add ECDHE and PSK support to DTLS.
1198 [Michael Tuexen <tuexen@fh-muenster.de>]
1200 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1204 *) Add "missing" function EVP_MD_flags() (without this the only way to
1205 retrieve a digest flags is by accessing the structure directly. Update
1206 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1207 or cipher is registered as in the "from" argument. Print out all
1208 registered digests in the dgst usage message instead of manually
1209 attempting to work them out.
1212 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1213 this allows the use of compression and extensions. Change default cipher
1214 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1215 by default unless an application cipher string requests it.
1218 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1219 key ids to find matching certificates and keys but some PKCS#12 files
1220 don't follow the (somewhat unwritten) rules and this strategy fails.
1221 Now just gather all certificates together and the first private key
1222 then look for the first certificate that matches the key.
1225 *) Support use of registered digest and cipher names for dgst and cipher
1226 commands instead of having to add each one as a special case. So now
1233 openssl dgst -sha256 foo
1235 and this works for ENGINE based algorithms too.
1239 *) Update Gost ENGINE to support parameter files.
1240 [Victor B. Wagner <vitus@cryptocom.ru>]
1242 *) Support GeneralizedTime in ca utility.
1243 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1245 *) Enhance the hash format used for certificate directory links. The new
1246 form uses the canonical encoding (meaning equivalent names will work
1247 even if they aren't identical) and uses SHA1 instead of MD5. This form
1248 is incompatible with the older format and as a result c_rehash should
1249 be used to rebuild symbolic links.
1252 *) Make PKCS#8 the default write format for private keys, replacing the
1253 traditional format. This form is standardised, more secure and doesn't
1254 include an implicit MD5 dependency.
1257 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1258 committed to OpenSSL should pass this lot as a minimum.
1261 *) Add session ticket override functionality for use by EAP-FAST.
1262 [Jouni Malinen <j@w1.fi>]
1264 *) Modify HMAC functions to return a value. Since these can be implemented
1265 in an ENGINE errors can occur.
1268 *) Type-checked OBJ_bsearch_ex.
1271 *) Type-checked OBJ_bsearch. Also some constification necessitated
1272 by type-checking. Still to come: TXT_DB, bsearch(?),
1273 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1277 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1278 seconds to a tm structure directly, instead of going through OS
1279 specific date routines. This avoids any issues with OS routines such
1280 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1281 and X509_time_adj_ex() to cover the extended range. The existing
1282 X509_time_adj() is still usable and will no longer have any date issues.
1285 *) Delta CRL support. New use deltas option which will attempt to locate
1286 and search any appropriate delta CRLs available.
1288 This work was sponsored by Google.
1291 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1292 code and add additional score elements. Validate alternate CRL paths
1293 as part of the CRL checking and indicate a new error "CRL path validation
1294 error" in this case. Applications wanting additional details can use
1295 the verify callback and check the new "parent" field. If this is not
1296 NULL CRL path validation is taking place. Existing applications wont
1297 see this because it requires extended CRL support which is off by
1300 This work was sponsored by Google.
1303 *) Support for freshest CRL extension.
1305 This work was sponsored by Google.
1308 *) Initial indirect CRL support. Currently only supported in the CRLs
1309 passed directly and not via lookup. Process certificate issuer
1310 CRL entry extension and lookup CRL entries by bother issuer name
1311 and serial number. Check and process CRL issuer entry in IDP extension.
1313 This work was sponsored by Google.
1316 *) Add support for distinct certificate and CRL paths. The CRL issuer
1317 certificate is validated separately in this case. Only enabled if
1318 an extended CRL support flag is set: this flag will enable additional
1319 CRL functionality in future.
1321 This work was sponsored by Google.
1324 *) Add support for policy mappings extension.
1326 This work was sponsored by Google.
1329 *) Fixes to pathlength constraint, self issued certificate handling,
1330 policy processing to align with RFC3280 and PKITS tests.
1332 This work was sponsored by Google.
1335 *) Support for name constraints certificate extension. DN, email, DNS
1336 and URI types are currently supported.
1338 This work was sponsored by Google.
1341 *) To cater for systems that provide a pointer-based thread ID rather
1342 than numeric, deprecate the current numeric thread ID mechanism and
1343 replace it with a structure and associated callback type. This
1344 mechanism allows a numeric "hash" to be extracted from a thread ID in
1345 either case, and on platforms where pointers are larger than 'long',
1346 mixing is done to help ensure the numeric 'hash' is usable even if it
1347 can't be guaranteed unique. The default mechanism is to use "&errno"
1348 as a pointer-based thread ID to distinguish between threads.
1350 Applications that want to provide their own thread IDs should now use
1351 CRYPTO_THREADID_set_callback() to register a callback that will call
1352 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1354 Note that ERR_remove_state() is now deprecated, because it is tied
1355 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1356 to free the current thread's error state should be replaced by
1357 ERR_remove_thread_state(NULL).
1359 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1360 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1361 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1362 application was previously providing a numeric thread callback that
1363 was inappropriate for distinguishing threads, then uniqueness might
1364 have been obtained with &errno that happened immediately in the
1365 intermediate development versions of OpenSSL; this is no longer the
1366 case, the numeric thread callback will now override the automatic use
1368 [Geoff Thorpe, with help from Bodo Moeller]
1370 *) Initial support for different CRL issuing certificates. This covers a
1371 simple case where the self issued certificates in the chain exist and
1372 the real CRL issuer is higher in the existing chain.
1374 This work was sponsored by Google.
1377 *) Removed effectively defunct crypto/store from the build.
1380 *) Revamp of STACK to provide stronger type-checking. Still to come:
1381 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1382 ASN1_STRING, CONF_VALUE.
1385 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1386 RAM on SSL connections. This option can save about 34k per idle SSL.
1389 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1390 STACK, TXT_DB, bsearch, qsort.
1393 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1394 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1395 support for data, signedData, compressedData, digestedData and
1396 encryptedData, envelopedData types included. Scripts to check against
1397 RFC4134 examples draft and interop and consistency checks of many
1398 content types and variants.
1401 *) Add options to enc utility to support use of zlib compression BIO.
1404 *) Extend mk1mf to support importing of options and assembly language
1405 files from Configure script, currently only included in VC-WIN32.
1406 The assembly language rules can now optionally generate the source
1407 files from the associated perl scripts.
1410 *) Implement remaining functionality needed to support GOST ciphersuites.
1411 Interop testing has been performed using CryptoPro implementations.
1412 [Victor B. Wagner <vitus@cryptocom.ru>]
1414 *) s390x assembler pack.
1417 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1421 *) Implement Opaque PRF Input TLS extension as specified in
1422 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1423 official specification yet and no extension type assignment by
1424 IANA exists, this extension (for now) will have to be explicitly
1425 enabled when building OpenSSL by providing the extension number
1426 to use. For example, specify an option
1428 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1430 to the "config" or "Configure" script to enable the extension,
1431 assuming extension number 0x9527 (which is a completely arbitrary
1432 and unofficial assignment based on the MD5 hash of the Internet
1433 Draft). Note that by doing so, you potentially lose
1434 interoperability with other TLS implementations since these might
1435 be using the same extension number for other purposes.
1437 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1438 opaque PRF input value to use in the handshake. This will create
1439 an interal copy of the length-'len' string at 'src', and will
1440 return non-zero for success.
1442 To get more control and flexibility, provide a callback function
1445 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1446 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1450 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1453 Callback function 'cb' will be called in handshakes, and is
1454 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1455 Argument 'arg' is for application purposes (the value as given to
1456 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1457 be provided to the callback function). The callback function
1458 has to return non-zero to report success: usually 1 to use opaque
1459 PRF input just if possible, or 2 to enforce use of the opaque PRF
1460 input. In the latter case, the library will abort the handshake
1461 if opaque PRF input is not successfully negotiated.
1463 Arguments 'peerinput' and 'len' given to the callback function
1464 will always be NULL and 0 in the case of a client. A server will
1465 see the client's opaque PRF input through these variables if
1466 available (NULL and 0 otherwise). Note that if the server
1467 provides an opaque PRF input, the length must be the same as the
1468 length of the client's opaque PRF input.
1470 Note that the callback function will only be called when creating
1471 a new session (session resumption can resume whatever was
1472 previously negotiated), and will not be called in SSL 2.0
1473 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1474 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1475 for applications that need to enforce opaque PRF input.
1479 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1482 [Victor B. Wagner <vitus@cryptocom.ru>]
1484 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1485 RFC4507bis. The encrypted ticket format is an encrypted encoded
1486 SSL_SESSION structure, that way new session features are automatically
1489 If a client application caches session in an SSL_SESSION structure
1490 support is transparent because tickets are now stored in the encoded
1493 The SSL_CTX structure automatically generates keys for ticket
1494 protection in servers so again support should be possible
1495 with no application modification.
1497 If a client or server wishes to disable RFC4507 support then the option
1498 SSL_OP_NO_TICKET can be set.
1500 Add a TLS extension debugging callback to allow the contents of any client
1501 or server extensions to be examined.
1503 This work was sponsored by Google.
1506 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1507 OpenSSL should now compile cleanly on gcc 4.2
1508 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1510 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1511 support including streaming MAC support: this is required for GOST
1512 ciphersuite support.
1513 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1515 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1516 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1517 to output in BER and PEM format.
1520 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1521 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1522 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1523 ENGINE support for HMAC keys which are unextractable. New -mac and
1524 -macopt options to dgst utility.
1527 *) New option -sigopt to dgst utility. Update dgst to use
1528 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1529 alternative signing paramaters such as X9.31 or PSS in the dgst
1533 *) Change ssl_cipher_apply_rule(), the internal function that does
1534 the work each time a ciphersuite string requests enabling
1535 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1536 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1537 the order of disabled ciphersuites such that those ciphersuites
1538 that most recently went from enabled to disabled not only stay
1539 in order with respect to each other, but also have higher priority
1540 than other disabled ciphersuites the next time ciphersuites are
1543 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1544 the same ciphersuites as with "HIGH" alone, but in a specific
1545 order where the PSK ciphersuites come first (since they are the
1546 most recently disabled ciphersuites when "HIGH" is parsed).
1548 Also, change ssl_create_cipher_list() (using this new
1549 funcionality) such that between otherwise identical
1550 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1554 *) Change ssl_create_cipher_list() so that it automatically
1555 arranges the ciphersuites in reasonable order before starting
1556 to process the rule string. Thus, the definition for "DEFAULT"
1557 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1558 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1559 This makes it much easier to arrive at a reasonable default order
1560 in applications for which anonymous ciphers are OK (meaning
1561 that you can't actually use DEFAULT).
1562 [Bodo Moeller; suggested by Victor Duchovni]
1564 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1565 processing) into multiple integers instead of setting
1566 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1567 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1568 (These masks as well as the individual bit definitions are hidden
1569 away into the non-exported interface ssl/ssl_locl.h, so this
1570 change to the definition of the SSL_CIPHER structure shouldn't
1571 affect applications.) This give us more bits for each of these
1572 categories, so there is no longer a need to coagulate AES128 and
1573 AES256 into a single algorithm bit, and to coagulate Camellia128
1574 and Camellia256 into a single algorithm bit, which has led to all
1577 Thus, among other things, the kludge introduced in 0.9.7m and
1578 0.9.8e for masking out AES256 independently of AES128 or masking
1579 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1581 With the change, we also introduce new ciphersuite aliases that
1582 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1586 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1587 Use the leftmost N bytes of the signature input if the input is
1588 larger than the prime q (with N being the size in bytes of q).
1591 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1592 it yet and it is largely untested.
1595 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1598 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1599 some compilers (gcc 4.2 and later) reject their use. Safestack is
1600 reimplemented. Update ASN1 to avoid use of legacy functions.
1603 *) Win32/64 targets are linked with Winsock2.
1606 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1607 to external functions. This can be used to increase CRL handling
1608 efficiency especially when CRLs are very large by (for example) storing
1609 the CRL revoked certificates in a database.
1612 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1613 new CRLs added to a directory can be used. New command line option
1614 -verify_return_error to s_client and s_server. This causes real errors
1615 to be returned by the verify callback instead of carrying on no matter
1616 what. This reflects the way a "real world" verify callback would behave.
1619 *) GOST engine, supporting several GOST algorithms and public key formats.
1620 Kindly donated by Cryptocom.
1623 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1624 partitioned by DP are handled but no indirect CRL or reason partitioning
1625 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1626 selected via a scoring technique which handles IDP and AKID in CRLs.
1629 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1630 will ultimately be used for all verify operations: this will remove the
1631 X509_STORE dependency on certificate verification and allow alternative
1632 lookup methods. X509_STORE based implementations of these two callbacks.
1635 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1636 Modify get_crl() to find a valid (unexpired) CRL if possible.
1639 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1640 this would be called X509_CRL_cmp() but that name is already used by
1641 a function that just compares CRL issuer names. Cache several CRL
1642 extensions in X509_CRL structure and cache CRLDP in X509.
1645 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1646 this maps equivalent X509_NAME structures into a consistent structure.
1647 Name comparison can then be performed rapidly using memcmp().
1650 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1654 *) Allow digests to supply their own micalg string for S/MIME type using
1655 the ctrl EVP_MD_CTRL_MICALG.
1658 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1659 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1660 ctrl. It can then customise the structure before and/or after signing
1664 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1665 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1666 to free up any added signature OIDs.
1669 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1670 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1671 digest and cipher tables. New options added to openssl utility:
1672 list-message-digest-algorithms and list-cipher-algorithms.
1675 *) Change the array representation of binary polynomials: the list
1676 of degrees of non-zero coefficients is now terminated with -1.
1677 Previously it was terminated with 0, which was also part of the
1678 value; thus, the array representation was not applicable to
1679 polynomials where t^0 has coefficient zero. This change makes
1680 the array representation useful in a more general context.
1683 *) Various modifications and fixes to SSL/TLS cipher string
1684 handling. For ECC, the code now distinguishes between fixed ECDH
1685 with RSA certificates on the one hand and with ECDSA certificates
1686 on the other hand, since these are separate ciphersuites. The
1687 unused code for Fortezza ciphersuites has been removed.
1689 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1690 (not "ECDHE"). For consistency with the code for DH
1691 certificates, use of ECDH certificates is now considered ECDH
1692 authentication, not RSA or ECDSA authentication (the latter is
1693 merely the CA's signing algorithm and not actively used in the
1696 The temporary ciphersuite alias "ECCdraft" is no longer
1697 available, and ECC ciphersuites are no longer excluded from "ALL"
1698 and "DEFAULT". The following aliases now exist for RFC 4492
1699 ciphersuites, most of these by analogy with the DH case:
1701 kECDHr - ECDH cert, signed with RSA
1702 kECDHe - ECDH cert, signed with ECDSA
1703 kECDH - ECDH cert (signed with either RSA or ECDSA)
1704 kEECDH - ephemeral ECDH
1705 ECDH - ECDH cert or ephemeral ECDH
1711 AECDH - anonymous ECDH
1712 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1716 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1717 Use correct micalg parameters depending on digest(s) in signed message.
1720 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1721 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1724 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1725 an engine to register a method. Add ENGINE lookups for methods and
1726 functional reference processing.
1729 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1730 EVP_{Sign,Verify}* which allow an application to customise the signature
1734 *) New -resign option to smime utility. This adds one or more signers
1735 to an existing PKCS#7 signedData structure. Also -md option to use an
1736 alternative message digest algorithm for signing.
1739 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1740 create PKCS7 structures containing multiple signers. Update smime
1741 application to support multiple signers.
1744 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1748 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1749 Reorganize PBE internals to lookup from a static table using NIDs,
1750 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1751 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1752 PRF which will be automatically used with PBES2.
1755 *) Replace the algorithm specific calls to generate keys in "req" with the
1759 *) Update PKCS#7 enveloped data routines to use new API. This is now
1760 supported by any public key method supporting the encrypt operation. A
1761 ctrl is added to allow the public key algorithm to examine or modify
1762 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1766 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1767 a default digest type to use. In most cases this will be SHA1 but some
1768 algorithms (such as GOST) need to specify an alternative digest. The
1769 return value indicates how strong the prefernce is 1 means optional and
1770 2 is mandatory (that is it is the only supported type). Modify
1771 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1772 use the default md. Update openssl utilities to use the default digest
1773 type for signing if it is not explicitly indicated.
1776 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1777 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1778 signing method from the key type. This effectively removes the link
1779 between digests and public key types.
1782 *) Add an OID cross reference table and utility functions. Its purpose is to
1783 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1784 rsaEncryption. This will allow some of the algorithm specific hackery
1785 needed to use the correct OID to be removed.
1788 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1789 structures for PKCS7_sign(). They are now set up by the relevant public
1793 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1796 *) Add support for key derivation (agreement) in the API, DH method and
1800 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1801 public and private key formats. As a side effect these add additional
1802 command line functionality not previously available: DSA signatures can be
1803 generated and verified using pkeyutl and DH key support and generation in
1808 [Oliver Tappe <zooey@hirschkaefer.de>]
1810 *) New make target "install_html_docs" installs HTML renditions of the
1812 [Oliver Tappe <zooey@hirschkaefer.de>]
1814 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1815 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1816 support key and parameter generation and add initial key generation
1817 functionality for RSA.
1820 *) Add functions for main EVP_PKEY_method operations. The undocumented
1821 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1822 EVP_PKEY_{encrypt,decrypt}_old.
1825 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1826 key API, doesn't do much yet.
1829 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1830 public key algorithms. New option to openssl utility:
1831 "list-public-key-algorithms" to print out info.
1834 *) Implement the Supported Elliptic Curves Extension for
1835 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1838 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1839 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1842 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1843 utilities such as rsa, dsa, dsaparam etc except they process any key
1847 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1848 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1849 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1853 *) Initial support for pluggable public key ASN1.
1854 De-spaghettify the public key ASN1 handling. Move public and private
1855 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1856 algorithm specific handling to a single module within the relevant
1857 algorithm directory. Add functions to allow (near) opaque processing
1858 of public and private key structures.
1861 *) Implement the Supported Point Formats Extension for
1862 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1865 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1866 for the psk identity [hint] and the psk callback functions to the
1867 SSL_SESSION, SSL and SSL_CTX structure.
1870 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1874 SSL_CTX_use_psk_identity_hint
1875 SSL_get_psk_identity_hint
1876 SSL_get_psk_identity
1877 SSL_use_psk_identity_hint
1879 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1881 *) Add RFC 3161 compliant time stamp request creation, response generation
1882 and response verification functionality.
1883 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1885 *) Add initial support for TLS extensions, specifically for the server_name
1886 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1887 have new members for a host name. The SSL data structure has an
1888 additional member SSL_CTX *initial_ctx so that new sessions can be
1889 stored in that context to allow for session resumption, even after the
1890 SSL has been switched to a new SSL_CTX in reaction to a client's
1891 server_name extension.
1893 New functions (subject to change):
1895 SSL_get_servername()
1896 SSL_get_servername_type()
1899 New CTRL codes and macros (subject to change):
1901 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1902 - SSL_CTX_set_tlsext_servername_callback()
1903 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1904 - SSL_CTX_set_tlsext_servername_arg()
1905 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1907 openssl s_client has a new '-servername ...' option.
1909 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1910 '-key2 ...', '-servername_fatal' (subject to change). This allows
1911 testing the HostName extension for a specific single host name ('-cert'
1912 and '-key' remain fallbacks for handshakes without HostName
1913 negotiation). If the unrecogninzed_name alert has to be sent, this by
1914 default is a warning; it becomes fatal with the '-servername_fatal'
1917 [Peter Sylvester, Remy Allais, Christophe Renou]
1919 *) Whirlpool hash implementation is added.
1922 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1923 bn(64,32). Because of instruction set limitations it doesn't have
1924 any negative impact on performance. This was done mostly in order
1925 to make it possible to share assembler modules, such as bn_mul_mont
1926 implementations, between 32- and 64-bit builds without hassle.
1929 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1930 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1934 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1935 dedicated Montgomery multiplication procedure, is introduced.
1936 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1937 "64-bit" performance on certain 32-bit targets.
1940 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1941 in SSL structures. New SSL ctrl to set maximum send fragment size.
1942 Save memory by seeting the I/O buffer sizes dynamically instead of
1943 using the maximum available value.
1946 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1947 in addition to the text details.
1950 *) Very, very preliminary EXPERIMENTAL support for printing of general
1951 ASN1 structures. This currently produces rather ugly output and doesn't
1952 handle several customised structures at all.
1955 *) Integrated support for PVK file format and some related formats such
1956 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1957 these in the 'rsa' and 'dsa' utilities.
1960 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1963 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1964 place for the (very old) "NETSCAPE" format certificates which are now
1965 handled using new ASN1 code equivalents.
1968 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1969 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1970 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1973 *) Modify CRL distribution points extension code to print out previously
1974 unsupported fields. Enhance extension setting code to allow setting of
1978 *) Add print and set support for Issuing Distribution Point CRL extension.
1981 *) Change 'Configure' script to enable Camellia by default.
1984 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1986 *) When rejecting SSL/TLS records due to an incorrect version number, never
1987 update s->server with a new major version number. As of
1988 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1989 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1990 the previous behavior could result in a read attempt at NULL when
1991 receiving specific incorrect SSL/TLS records once record payload
1992 protection is active. (CVE-2010-0740)
1993 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1995 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1996 could be crashed if the relevant tables were not present (e.g. chrooted).
1997 [Tomas Hoger <thoger@redhat.com>]
1999 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2001 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2002 [Martin Olsson, Neel Mehta]
2004 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2005 accommodate for stack sorting, always a write lock!).
2008 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2009 excessive delays in the RAND_poll(): over a minute. As a workaround
2010 include a time check in the inner Heap32Next loop too.
2013 *) The code that handled flushing of data in SSL/TLS originally used the
2014 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2015 the problem outlined in PR#1949. The fix suggested there however can
2016 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2017 of Apache). So instead simplify the code to flush unconditionally.
2018 This should be fine since flushing with no data to flush is a no op.
2021 *) Handle TLS versions 2.0 and later properly and correctly use the
2022 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2023 off ancient servers have a habit of sticking around for a while...
2026 *) Modify compression code so it frees up structures without using the
2027 ex_data callbacks. This works around a problem where some applications
2028 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2029 restarting) then use compression (e.g. SSL with compression) later.
2030 This results in significant per-connection memory leaks and
2031 has caused some security issues including CVE-2008-1678 and
2035 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2036 change when encrypting or decrypting.
2039 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2040 connect and renegotiate with servers which do not support RI.
2041 Until RI is more widely deployed this option is enabled by default.
2044 *) Add "missing" ssl ctrls to clear options and mode.
2047 *) If client attempts to renegotiate and doesn't support RI respond with
2048 a no_renegotiation alert as required by RFC5746. Some renegotiating
2049 TLS clients will continue a connection gracefully when they receive
2050 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2051 waiting for a server hello which it will never receive. Now we treat a
2052 received no_renegotiation alert as a fatal error. This is because
2053 applications requesting a renegotiation might well expect it to succeed
2054 and would have no code in place to handle the server denying it so the
2055 only safe thing to do is to terminate the connection.
2058 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2059 peer supports secure renegotiation and 0 otherwise. Print out peer
2060 renegotiation support in s_client/s_server.
2063 *) Replace the highly broken and deprecated SPKAC certification method with
2064 the updated NID creation version. This should correctly handle UTF8.
2067 *) Implement RFC5746. Re-enable renegotiation but require the extension
2068 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2069 turns out to be a bad idea. It has been replaced by
2070 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2071 SSL_CTX_set_options(). This is really not recommended unless you
2072 know what you are doing.
2073 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2075 *) Fixes to stateless session resumption handling. Use initial_ctx when
2076 issuing and attempting to decrypt tickets in case it has changed during
2077 servername handling. Use a non-zero length session ID when attempting
2078 stateless session resumption: this makes it possible to determine if
2079 a resumption has occurred immediately after receiving server hello
2080 (several places in OpenSSL subtly assume this) instead of later in
2084 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2085 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2086 fixes for a few places where the return code is not checked
2088 [Julia Lawall <julia@diku.dk>]
2090 *) Add --strict-warnings option to Configure script to include devteam
2091 warnings in other configurations.
2094 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2095 makes it possible to install openssl libraries in locations which
2096 have names other than "lib", for example "/usr/lib64" which some
2098 [Steve Henson, based on patch from Jeremy Utley]
2100 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2101 X690 8.9.12 and can produce some misleading textual output of OIDs.
2102 [Steve Henson, reported by Dan Kaminsky]
2104 *) Delete MD2 from algorithm tables. This follows the recommendation in
2105 several standards that it is not used in new applications due to
2106 several cryptographic weaknesses. For binary compatibility reasons
2107 the MD2 API is still compiled in by default.
2110 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2114 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2115 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2117 [Guenter <lists@gknw.net>]
2119 *) Fix the server certificate chain building code to use X509_verify_cert(),
2120 it used to have an ad-hoc builder which was unable to cope with anything
2121 other than a simple chain.
2122 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2124 *) Don't check self signed certificate signatures in X509_verify_cert()
2125 by default (a flag can override this): it just wastes time without
2126 adding any security. As a useful side effect self signed root CAs
2127 with non-FIPS digests are now usable in FIPS mode.
2130 *) In dtls1_process_out_of_seq_message() the check if the current message
2131 is already buffered was missing. For every new message was memory
2132 allocated, allowing an attacker to perform an denial of service attack
2133 with sending out of seq handshake messages until there is no memory
2134 left. Additionally every future messege was buffered, even if the
2135 sequence number made no sense and would be part of another handshake.
2136 So only messages with sequence numbers less than 10 in advance will be
2137 buffered. (CVE-2009-1378)
2138 [Robin Seggelmann, discovered by Daniel Mentz]
2140 *) Records are buffered if they arrive with a future epoch to be
2141 processed after finishing the corresponding handshake. There is
2142 currently no limitation to this buffer allowing an attacker to perform
2143 a DOS attack with sending records with future epochs until there is no
2144 memory left. This patch adds the pqueue_size() function to detemine
2145 the size of a buffer and limits the record buffer to 100 entries.
2147 [Robin Seggelmann, discovered by Daniel Mentz]
2149 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2150 parent structure is freed. (CVE-2009-1379)
2153 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2154 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2157 [Ilya O. <vrghost@gmail.com>]
2159 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2161 *) Disable renegotiation completely - this fixes a severe security
2162 problem (CVE-2009-3555) at the cost of breaking all
2163 renegotiation. Renegotiation can be re-enabled by setting
2164 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2165 run-time. This is really not recommended unless you know what
2169 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2171 *) Don't set val to NULL when freeing up structures, it is freed up by
2172 underlying code. If sizeof(void *) > sizeof(long) this can result in
2173 zeroing past the valid field. (CVE-2009-0789)
2174 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2176 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2177 checked correctly. This would allow some invalid signed attributes to
2178 appear to verify correctly. (CVE-2009-0591)
2179 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2181 *) Reject UniversalString and BMPString types with invalid lengths. This
2182 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2183 a legal length. (CVE-2009-0590)
2186 *) Set S/MIME signing as the default purpose rather than setting it
2187 unconditionally. This allows applications to override it at the store
2191 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2192 to handle some structures.
2195 *) Improve efficiency of mem_gets: don't search whole buffer each time
2197 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2199 *) New -hex option for openssl rand.
2202 *) Print out UTF8String and NumericString when parsing ASN1.
2205 *) Support NumericString type for name components.
2208 *) Allow CC in the environment to override the automatically chosen
2209 compiler. Note that nothing is done to ensure flags work with the
2213 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2215 *) Properly check EVP_VerifyFinal() and similar return values
2217 [Ben Laurie, Bodo Moeller, Google Security Team]
2219 *) Enable TLS extensions by default.
2222 *) Allow the CHIL engine to be loaded, whether the application is
2223 multithreaded or not. (This does not release the developer from the
2224 obligation to set up the dynamic locking callbacks.)
2225 [Sander Temme <sander@temme.net>]
2227 *) Use correct exit code if there is an error in dgst command.
2228 [Steve Henson; problem pointed out by Roland Dirlewanger]
2230 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2231 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2234 *) Add experimental JPAKE support, including demo authentication in
2235 s_client and s_server.
2238 *) Set the comparison function in v3_addr_canonize().
2239 [Rob Austein <sra@hactrn.net>]
2241 *) Add support for XMPP STARTTLS in s_client.
2242 [Philip Paeps <philip@freebsd.org>]
2244 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2245 to ensure that even with this option, only ciphersuites in the
2246 server's preference list will be accepted. (Note that the option
2247 applies only when resuming a session, so the earlier behavior was
2248 just about the algorithm choice for symmetric cryptography.)
2251 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2253 *) Fix NULL pointer dereference if a DTLS server received
2254 ChangeCipherSpec as first record (CVE-2009-1386).
2257 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2258 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2261 *) The fix in 0.9.8c that supposedly got rid of unsafe
2262 double-checked locking was incomplete for RSA blinding,
2263 addressing just one layer of what turns out to have been
2264 doubly unsafe triple-checked locking.
2266 So now fix this for real by retiring the MONT_HELPER macro
2267 in crypto/rsa/rsa_eay.c.
2269 [Bodo Moeller; problem pointed out by Marius Schilder]
2271 *) Various precautionary measures:
2273 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2275 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2276 (NB: This would require knowledge of the secret session ticket key
2277 to exploit, in which case you'd be SOL either way.)
2279 - Change bn_nist.c so that it will properly handle input BIGNUMs
2280 outside the expected range.
2282 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2285 [Neel Mehta, Bodo Moeller]
2287 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2288 the load fails. Useful for distros.
2289 [Ben Laurie and the FreeBSD team]
2291 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2294 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2297 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2299 This work was sponsored by Logica.
2302 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2303 keystores. Support for SSL/TLS client authentication too.
2304 Not compiled unless enable-capieng specified to Configure.
2306 This work was sponsored by Logica.
2309 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2310 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2311 attribute creation routines such as certifcate requests and PKCS#12
2315 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2317 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2318 handshake which could lead to a cilent crash as found using the
2319 Codenomicon TLS test suite (CVE-2008-1672)
2320 [Steve Henson, Mark Cox]
2322 *) Fix double free in TLS server name extensions which could lead to
2323 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2326 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2328 Clear the error queue to ensure that error entries left from
2329 older function calls do not interfere with the correct operation.
2330 [Lutz Jaenicke, Erik de Castro Lopo]
2332 *) Remove root CA certificates of commercial CAs:
2334 The OpenSSL project does not recommend any specific CA and does not
2335 have any policy with respect to including or excluding any CA.
2336 Therefore it does not make any sense to ship an arbitrary selection
2337 of root CA certificates with the OpenSSL software.
2340 *) RSA OAEP patches to fix two separate invalid memory reads.
2341 The first one involves inputs when 'lzero' is greater than
2342 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2343 before the beginning of from). The second one involves inputs where
2344 the 'db' section contains nothing but zeroes (there is a one-byte
2345 invalid read after the end of 'db').
2346 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2348 *) Partial backport from 0.9.9-dev:
2350 Introduce bn_mul_mont (dedicated Montgomery multiplication
2351 procedure) as a candidate for BIGNUM assembler implementation.
2352 While 0.9.9-dev uses assembler for various architectures, only
2353 x86_64 is available by default here in the 0.9.8 branch, and
2354 32-bit x86 is available through a compile-time setting.
2356 To try the 32-bit x86 assembler implementation, use Configure
2357 option "enable-montasm" (which exists only for this backport).
2359 As "enable-montasm" for 32-bit x86 disclaims code stability
2360 anyway, in this constellation we activate additional code
2361 backported from 0.9.9-dev for further performance improvements,
2362 namely BN_from_montgomery_word. (To enable this otherwise,
2363 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2365 [Andy Polyakov (backport partially by Bodo Moeller)]
2367 *) Add TLS session ticket callback. This allows an application to set
2368 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2369 values. This is useful for key rollover for example where several key
2370 sets may exist with different names.
2373 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2374 This was broken until now in 0.9.8 releases, such that the only way
2375 a registered ENGINE could be used (assuming it initialises
2376 successfully on the host) was to explicitly set it as the default
2377 for the relevant algorithms. This is in contradiction with 0.9.7
2378 behaviour and the documentation. With this fix, when an ENGINE is
2379 registered into a given algorithm's table of implementations, the
2380 'uptodate' flag is reset so that auto-discovery will be used next
2381 time a new context for that algorithm attempts to select an
2383 [Ian Lister (tweaked by Geoff Thorpe)]
2385 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2386 implemention in the following ways:
2388 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2391 Lack of BER streaming support means one pass streaming processing is
2392 only supported if data is detached: setting the streaming flag is
2393 ignored for embedded content.
2395 CMS support is disabled by default and must be explicitly enabled
2396 with the enable-cms configuration option.
2399 *) Update the GMP engine glue to do direct copies between BIGNUM and
2400 mpz_t when openssl and GMP use the same limb size. Otherwise the
2401 existing "conversion via a text string export" trick is still used.
2402 [Paul Sheer <paulsheer@gmail.com>]
2404 *) Zlib compression BIO. This is a filter BIO which compressed and
2405 uncompresses any data passed through it.
2408 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2409 RFC3394 compatible AES key wrapping.
2412 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2413 sets string data without copying. X509_ALGOR_set0() and
2414 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2415 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2416 from an X509_ATTRIBUTE structure optionally checking it occurs only
2417 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2421 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2422 to get the expected BN_FLG_CONSTTIME behavior.
2423 [Bodo Moeller (Google)]
2427 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2428 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2429 - added some more tests to do_tests.pl
2430 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2431 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2432 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2433 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2434 - various changes to netware.pl to enable gcc-cross builds on Win32
2436 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2437 - various changes to fix missing prototype warnings
2438 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2439 - added AES, WHIRLPOOL and CPUID assembler code to build files
2440 - added missing AES assembler make rules to mk1mf.pl
2441 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2442 [Guenter Knauf <eflash@gmx.net>]
2444 *) Implement certificate status request TLS extension defined in RFC3546.
2445 A client can set the appropriate parameters and receive the encoded
2446 OCSP response via a callback. A server can query the supplied parameters
2447 and set the encoded OCSP response in the callback. Add simplified examples
2448 to s_client and s_server.
2451 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2453 *) Fix various bugs:
2454 + Binary incompatibility of ssl_ctx_st structure
2455 + DTLS interoperation with non-compliant servers
2456 + Don't call get_session_cb() without proposed session
2457 + Fix ia64 assembler code
2458 [Andy Polyakov, Steve Henson]
2460 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2462 *) DTLS Handshake overhaul. There were longstanding issues with
2463 OpenSSL DTLS implementation, which were making it impossible for
2464 RFC 4347 compliant client to communicate with OpenSSL server.
2465 Unfortunately just fixing these incompatibilities would "cut off"
2466 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2467 server keeps tolerating non RFC compliant syntax. The opposite is
2468 not true, 0.9.8f client can not communicate with earlier server.
2469 This update even addresses CVE-2007-4995.
2472 *) Changes to avoid need for function casts in OpenSSL: some compilers
2473 (gcc 4.2 and later) reject their use.
2474 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2477 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2478 RFC4507bis. The encrypted ticket format is an encrypted encoded
2479 SSL_SESSION structure, that way new session features are automatically
2482 If a client application caches session in an SSL_SESSION structure
2483 support is transparent because tickets are now stored in the encoded
2486 The SSL_CTX structure automatically generates keys for ticket
2487 protection in servers so again support should be possible
2488 with no application modification.
2490 If a client or server wishes to disable RFC4507 support then the option
2491 SSL_OP_NO_TICKET can be set.
2493 Add a TLS extension debugging callback to allow the contents of any client
2494 or server extensions to be examined.
2496 This work was sponsored by Google.
2499 *) Add initial support for TLS extensions, specifically for the server_name
2500 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2501 have new members for a host name. The SSL data structure has an
2502 additional member SSL_CTX *initial_ctx so that new sessions can be
2503 stored in that context to allow for session resumption, even after the
2504 SSL has been switched to a new SSL_CTX in reaction to a client's
2505 server_name extension.
2507 New functions (subject to change):
2509 SSL_get_servername()
2510 SSL_get_servername_type()
2513 New CTRL codes and macros (subject to change):
2515 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2516 - SSL_CTX_set_tlsext_servername_callback()
2517 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2518 - SSL_CTX_set_tlsext_servername_arg()
2519 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2521 openssl s_client has a new '-servername ...' option.
2523 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2524 '-key2 ...', '-servername_fatal' (subject to change). This allows
2525 testing the HostName extension for a specific single host name ('-cert'
2526 and '-key' remain fallbacks for handshakes without HostName
2527 negotiation). If the unrecogninzed_name alert has to be sent, this by
2528 default is a warning; it becomes fatal with the '-servername_fatal'
2531 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2533 *) Add AES and SSE2 assembly language support to VC++ build.
2536 *) Mitigate attack on final subtraction in Montgomery reduction.
2539 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2540 (which previously caused an internal error).
2543 *) Squeeze another 10% out of IGE mode when in != out.
2546 *) AES IGE mode speedup.
2547 [Dean Gaudet (Google)]
2549 *) Add the Korean symmetric 128-bit cipher SEED (see
2550 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2551 add SEED ciphersuites from RFC 4162:
2553 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2554 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2555 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2556 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2558 To minimize changes between patchlevels in the OpenSSL 0.9.8
2559 series, SEED remains excluded from compilation unless OpenSSL
2560 is configured with 'enable-seed'.
2561 [KISA, Bodo Moeller]
2563 *) Mitigate branch prediction attacks, which can be practical if a
2564 single processor is shared, allowing a spy process to extract
2565 information. For detailed background information, see
2566 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2567 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2568 and Necessary Software Countermeasures"). The core of the change
2569 are new versions BN_div_no_branch() and
2570 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2571 respectively, which are slower, but avoid the security-relevant
2572 conditional branches. These are automatically called by BN_div()
2573 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2574 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2575 remove a conditional branch.
2577 BN_FLG_CONSTTIME is the new name for the previous
2578 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2579 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2580 in the exponent causes BN_mod_exp_mont() to use the alternative
2581 implementation in BN_mod_exp_mont_consttime().) The old name
2582 remains as a deprecated alias.
2584 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2585 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2586 constant-time implementations for more than just exponentiation.
2587 Here too the old name is kept as a deprecated alias.
2589 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2590 the BN_BLINDING structure gets an independent copy of the
2591 modulus. This means that the previous "BIGNUM *m" argument to
2592 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2593 essentially becomes "const BIGNUM *m", although we can't actually
2594 change this in the header file before 0.9.9. It allows
2595 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2596 enable BN_FLG_CONSTTIME.
2598 [Matthew D Wood (Intel Corp)]
2600 *) In the SSL/TLS server implementation, be strict about session ID
2601 context matching (which matters if an application uses a single
2602 external cache for different purposes). Previously,
2603 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2604 set. This did ensure strict client verification, but meant that,
2605 with applications using a single external cache for quite
2606 different requirements, clients could circumvent ciphersuite
2607 restrictions for a given session ID context by starting a session
2608 in a different context.
2611 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2612 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2613 authentication-only ciphersuites.
2616 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2617 not complete and could lead to a possible single byte overflow
2618 (CVE-2007-5135) [Ben Laurie]
2620 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2622 *) Since AES128 and AES256 (and similarly Camellia128 and
2623 Camellia256) share a single mask bit in the logic of
2624 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2625 kludge to work properly if AES128 is available and AES256 isn't
2626 (or if Camellia128 is available and Camellia256 isn't).
2629 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2630 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2631 When a point or a seed is encoded in a BIT STRING, we need to
2632 prevent the removal of trailing zero bits to get the proper DER
2633 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2634 of a NamedBitList, for which trailing 0 bits need to be removed.)
2637 *) Have SSL/TLS server implementation tolerate "mismatched" record
2638 protocol version while receiving ClientHello even if the
2639 ClientHello is fragmented. (The server can't insist on the
2640 particular protocol version it has chosen before the ServerHello
2641 message has informed the client about his choice.)
2644 *) Add RFC 3779 support.
2645 [Rob Austein for ARIN, Ben Laurie]
2647 *) Load error codes if they are not already present instead of using a
2648 static variable. This allows them to be cleanly unloaded and reloaded.
2649 Improve header file function name parsing.
2652 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2653 or CAPABILITY handshake as required by RFCs.
2656 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2658 *) Introduce limits to prevent malicious keys being able to
2659 cause a denial of service. (CVE-2006-2940)
2660 [Steve Henson, Bodo Moeller]
2662 *) Fix ASN.1 parsing of certain invalid structures that can result
2663 in a denial of service. (CVE-2006-2937) [Steve Henson]
2665 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2666 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2668 *) Fix SSL client code which could crash if connecting to a
2669 malicious SSLv2 server. (CVE-2006-4343)
2670 [Tavis Ormandy and Will Drewry, Google Security Team]
2672 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2673 match only those. Before that, "AES256-SHA" would be interpreted
2674 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2675 the same strength classification in 0.9.7h) as we currently only
2676 have a single AES bit in the ciphersuite description bitmap.
2677 That change, however, also applied to ciphersuite strings such as
2678 "RC4-MD5" that intentionally matched multiple ciphersuites --
2679 namely, SSL 2.0 ciphersuites in addition to the more common ones
2680 from SSL 3.0/TLS 1.0.
2682 So we change the selection algorithm again: Naming an explicit
2683 ciphersuite selects this one ciphersuite, and any other similar
2684 ciphersuite (same bitmap) from *other* protocol versions.
2685 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2686 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2688 Since SSL 2.0 does not have any ciphersuites for which the
2689 128/256 bit distinction would be relevant, this works for now.
2690 The proper fix will be to use different bits for AES128 and
2691 AES256, which would have avoided the problems from the beginning;
2692 however, bits are scarce, so we can only do this in a new release
2693 (not just a patchlevel) when we can change the SSL_CIPHER
2694 definition to split the single 'unsigned long mask' bitmap into
2695 multiple values to extend the available space.
2699 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2701 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2702 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2704 *) Add AES IGE and biIGE modes.
2707 *) Change the Unix randomness entropy gathering to use poll() when
2708 possible instead of select(), since the latter has some
2709 undesirable limitations.
2710 [Darryl Miles via Richard Levitte and Bodo Moeller]
2712 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2713 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2714 cannot be implicitly activated as part of, e.g., the "AES" alias.
2715 However, please upgrade to OpenSSL 0.9.9[-dev] for
2716 non-experimental use of the ECC ciphersuites to get TLS extension
2717 support, which is required for curve and point format negotiation
2718 to avoid potential handshake problems.
2721 *) Disable rogue ciphersuites:
2723 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2724 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2725 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2727 The latter two were purportedly from
2728 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2731 Also deactivate the remaining ciphersuites from
2732 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2733 unofficial, and the ID has long expired.
2736 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2737 dual-core machines) and other potential thread-safety issues.
2740 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2741 versions), which is now available for royalty-free use
2742 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2743 Also, add Camellia TLS ciphersuites from RFC 4132.
2745 To minimize changes between patchlevels in the OpenSSL 0.9.8
2746 series, Camellia remains excluded from compilation unless OpenSSL
2747 is configured with 'enable-camellia'.
2750 *) Disable the padding bug check when compression is in use. The padding
2751 bug check assumes the first packet is of even length, this is not
2752 necessarily true if compresssion is enabled and can result in false
2753 positives causing handshake failure. The actual bug test is ancient
2754 code so it is hoped that implementations will either have fixed it by
2755 now or any which still have the bug do not support compression.
2758 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2760 *) When applying a cipher rule check to see if string match is an explicit
2761 cipher suite and only match that one cipher suite if it is.
2764 *) Link in manifests for VC++ if needed.
2765 [Austin Ziegler <halostatue@gmail.com>]
2767 *) Update support for ECC-based TLS ciphersuites according to
2768 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2769 TLS extensions, which are supported starting with the 0.9.9
2770 branch, not in the OpenSSL 0.9.8 branch).
2773 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2774 opaque EVP_CIPHER_CTX handling.
2777 *) Fixes and enhancements to zlib compression code. We now only use
2778 "zlib1.dll" and use the default __cdecl calling convention on Win32
2779 to conform with the standards mentioned here:
2780 http://www.zlib.net/DLL_FAQ.txt
2781 Static zlib linking now works on Windows and the new --with-zlib-include
2782 --with-zlib-lib options to Configure can be used to supply the location
2783 of the headers and library. Gracefully handle case where zlib library
2787 *) Several fixes and enhancements to the OID generation code. The old code
2788 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2789 handle numbers larger than ULONG_MAX, truncated printing and had a
2790 non standard OBJ_obj2txt() behaviour.
2793 *) Add support for building of engines under engine/ as shared libraries
2794 under VC++ build system.
2797 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2798 Hopefully, we will not see any false combination of paths any more.
2801 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2803 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2804 (part of SSL_OP_ALL). This option used to disable the
2805 countermeasure against man-in-the-middle protocol-version
2806 rollback in the SSL 2.0 server implementation, which is a bad
2807 idea. (CVE-2005-2969)
2809 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2810 for Information Security, National Institute of Advanced Industrial
2811 Science and Technology [AIST], Japan)]
2813 *) Add two function to clear and return the verify parameter flags.
2816 *) Keep cipherlists sorted in the source instead of sorting them at
2817 runtime, thus removing the need for a lock.
2820 *) Avoid some small subgroup attacks in Diffie-Hellman.
2821 [Nick Mathewson and Ben Laurie]
2823 *) Add functions for well-known primes.
2826 *) Extended Windows CE support.
2827 [Satoshi Nakamura and Andy Polyakov]
2829 *) Initialize SSL_METHOD structures at compile time instead of during
2830 runtime, thus removing the need for a lock.
2833 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2834 attempting to decrypt each encrypted key in turn. Add support to
2838 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2840 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2843 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2846 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2847 key into the same file any more.
2850 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2853 *) Add -utf8 command line and config file option to 'ca'.
2854 [Stefan <stf@udoma.org]
2856 *) Removed the macro des_crypt(), as it seems to conflict with some
2857 libraries. Use DES_crypt().
2860 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2861 involves renaming the source and generated shared-libs for
2862 both. The engines will accept the corrected or legacy ids
2863 ('ncipher' and '4758_cca' respectively) when binding. NB,
2864 this only applies when building 'shared'.
2865 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2867 *) Add attribute functions to EVP_PKEY structure. Modify
2868 PKCS12_create() to recognize a CSP name attribute and
2869 use it. Make -CSP option work again in pkcs12 utility.
2872 *) Add new functionality to the bn blinding code:
2873 - automatic re-creation of the BN_BLINDING parameters after
2874 a fixed number of uses (currently 32)
2875 - add new function for parameter creation
2876 - introduce flags to control the update behaviour of the
2877 BN_BLINDING parameters
2878 - hide BN_BLINDING structure
2879 Add a second BN_BLINDING slot to the RSA structure to improve
2880 performance when a single RSA object is shared among several
2884 *) Add support for DTLS.
2885 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2887 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2888 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2891 *) Remove buggy and incompletet DH cert support from
2892 ssl/ssl_rsa.c and ssl/s3_both.c
2895 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2896 the apps/openssl applications.
2899 *) Compile clean with "-Wall -Wmissing-prototypes
2900 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2901 DEBUG_SAFESTACK must also be set.
2904 *) Change ./Configure so that certain algorithms can be disabled by default.
2905 The new counterpiece to "no-xxx" is "enable-xxx".
2907 The patented RC5 and MDC2 algorithms will now be disabled unless
2908 "enable-rc5" and "enable-mdc2", respectively, are specified.
2910 (IDEA remains enabled despite being patented. This is because IDEA
2911 is frequently required for interoperability, and there is no license
2912 fee for non-commercial use. As before, "no-idea" can be used to
2913 avoid this algorithm.)
2917 *) Add processing of proxy certificates (see RFC 3820). This work was
2918 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2919 EGEE (Enabling Grids for E-science in Europe).
2922 *) RC4 performance overhaul on modern architectures/implementations, such
2923 as Intel P4, IA-64 and AMD64.
2926 *) New utility extract-section.pl. This can be used specify an alternative
2927 section number in a pod file instead of having to treat each file as
2928 a separate case in Makefile. This can be done by adding two lines to the
2931 =for comment openssl_section:XXX
2933 The blank line is mandatory.
2937 *) New arguments -certform, -keyform and -pass for s_client and s_server
2938 to allow alternative format key and certificate files and passphrase
2942 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2943 update associated structures and add various utility functions.
2945 Add new policy related verify parameters, include policy checking in
2946 standard verify code. Enhance 'smime' application with extra parameters
2947 to support policy checking and print out.
2950 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2951 Nehemiah processors. These extensions support AES encryption in hardware
2952 as well as RNG (though RNG support is currently disabled).
2953 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2955 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2958 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2959 [Andy Polyakov and a number of other people]
2961 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2962 implementation contributed by IBM.
2963 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2965 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2966 exponent rather than 'unsigned long'. There is a corresponding change to
2967 the new 'rsa_keygen' element of the RSA_METHOD structure.
2968 [Jelte Jansen, Geoff Thorpe]
2970 *) Functionality for creating the initial serial number file is now
2971 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2973 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2974 number file to 1, which is bound to cause problems. To avoid
2975 the problems while respecting compatibility between different 0.9.7
2976 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2977 CA.pl for serial number initialization. With the new release 0.9.8,
2978 we can fix the problem directly in the 'ca' utility.)
2981 *) Reduced header interdepencies by declaring more opaque objects in
2982 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2983 give fewer recursive includes, which could break lazy source code - so
2984 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2985 developers should define this symbol when building and using openssl to
2986 ensure they track the recommended behaviour, interfaces, [etc], but
2987 backwards-compatible behaviour prevails when this isn't defined.
2990 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2993 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2994 This will generate a random key of the appropriate length based on the
2995 cipher context. The EVP_CIPHER can provide its own random key generation
2996 routine to support keys of a specific form. This is used in the des and
2997 3des routines to generate a key of the correct parity. Update S/MIME
2998 code to use new functions and hence generate correct parity DES keys.
2999 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3000 valid (weak or incorrect parity).
3003 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3004 as looking them up. This is useful when the verified structure may contain
3005 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3006 present unless the new PKCS7_NO_CRL flag is asserted.
3009 *) Extend ASN1 oid configuration module. It now additionally accepts the
3012 shortName = some long name, 1.2.3.4
3015 *) Reimplemented the BN_CTX implementation. There is now no more static
3016 limitation on the number of variables it can handle nor the depth of the
3017 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3018 information can now expand as required, and rather than having a single
3019 static array of bignums, BN_CTX now uses a linked-list of such arrays
3020 allowing it to expand on demand whilst maintaining the usefulness of
3021 BN_CTX's "bundling".
3024 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3025 to allow all RSA operations to function using a single BN_CTX.
3028 *) Preliminary support for certificate policy evaluation and checking. This
3029 is initially intended to pass the tests outlined in "Conformance Testing
3030 of Relying Party Client Certificate Path Processing Logic" v1.07.
3033 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3034 remained unused and not that useful. A variety of other little bignum
3035 tweaks and fixes have also been made continuing on from the audit (see
3039 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3040 associated ASN1, EVP and SSL functions and old ASN1 macros.
3043 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3044 and this should never fail. So the return value from the use of
3045 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3046 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3049 *) BN_CTX_get() should return zero-valued bignums, providing the same
3050 initialised value as BN_new().
3051 [Geoff Thorpe, suggested by Ulf Möller]
3053 *) Support for inhibitAnyPolicy certificate extension.
3056 *) An audit of the BIGNUM code is underway, for which debugging code is
3057 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3058 is considered valid when processing BIGNUMs, and causes execution to
3059 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3060 further steps are taken to deliberately pollute unused data in BIGNUM
3061 structures to try and expose faulty code further on. For now, openssl will
3062 (in its default mode of operation) continue to tolerate the inconsistent
3063 forms that it has tolerated in the past, but authors and packagers should
3064 consider trying openssl and their own applications when compiled with
3065 these debugging symbols defined. It will help highlight potential bugs in
3066 their own code, and will improve the test coverage for OpenSSL itself. At
3067 some point, these tighter rules will become openssl's default to improve
3068 maintainability, though the assert()s and other overheads will remain only
3069 in debugging configurations. See bn.h for more details.
3070 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3072 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3073 that can only be obtained through BN_CTX_new() (which implicitly
3074 initialises it). The presence of this function only made it possible
3075 to overwrite an existing structure (and cause memory leaks).
3078 *) Because of the callback-based approach for implementing LHASH as a
3079 template type, lh_insert() adds opaque objects to hash-tables and
3080 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3081 to clean up those corresponding objects before destroying the hash table
3082 (and losing the object pointers). So some over-zealous constifications in
3083 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3084 objects as "const" and the lh_doall[_arg] callback wrappers are not
3085 prototyped to have "const" restrictions on the object pointers they are
3086 given (and so aren't required to cast them away any more).
3089 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3090 (speed) prefers to use its own implementation. The two implementations
3091 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3092 its object type properly exposed (MS_TM) instead of casting to/from "char
3093 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3094 aren't necessarily the greatest nomenclatures - but this is what was used
3095 internally to the implementation so I've used that for now.
3098 *) Ensure that deprecated functions do not get compiled when
3099 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3100 the self-tests were still using deprecated key-generation functions so
3101 these have been updated also.
3104 *) Reorganise PKCS#7 code to separate the digest location functionality
3105 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3106 New function PKCS7_set_digest() to set the digest type for PKCS#7
3107 digestedData type. Add additional code to correctly generate the
3108 digestedData type and add support for this type in PKCS7 initialization
3112 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3113 structure of type "other".
3116 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3117 sure the loop does correctly stop and breaking ("division by zero")
3118 modulus operations are not performed. The (pre-generated) prime
3119 table crypto/bn/bn_prime.h was already correct, but it could not be
3120 re-generated on some platforms because of the "division by zero"
3121 situation in the script.
3122 [Ralf S. Engelschall]
3124 *) Update support for ECC-based TLS ciphersuites according to
3125 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3126 SHA-1 now is only used for "small" curves (where the
3127 representation of a field element takes up to 24 bytes); for
3128 larger curves, the field element resulting from ECDH is directly
3129 used as premaster secret.
3130 [Douglas Stebila (Sun Microsystems Laboratories)]
3132 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3133 curve secp160r1 to the tests.
3134 [Douglas Stebila (Sun Microsystems Laboratories)]
3136 *) Add the possibility to load symbols globally with DSO.
3137 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3139 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3140 control of the error stack.
3143 *) Add support for STORE in ENGINE.
3146 *) Add the STORE type. The intention is to provide a common interface
3147 to certificate and key stores, be they simple file-based stores, or
3148 HSM-type store, or LDAP stores, or...
3149 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3152 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3153 pass a list of arguments to any function as well as provide a way
3154 for a function to pass data back to the caller.
3157 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3158 works like BUF_strdup() but can be used to duplicate a portion of
3159 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3163 *) Add the function sk_find_ex() which works like sk_find(), but will
3164 return an index to an element even if an exact match couldn't be
3165 found. The index is guaranteed to point at the element where the
3166 searched-for key would be inserted to preserve sorting order.
3169 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3170 takes an extra flags argument for optional functionality. Currently,
3171 the following flags are defined:
3173 OBJ_BSEARCH_VALUE_ON_NOMATCH
3174 This one gets OBJ_bsearch_ex() to return a pointer to the first
3175 element where the comparing function returns a negative or zero
3178 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3179 This one gets OBJ_bsearch_ex() to return a pointer to the first
3180 element where the comparing function returns zero. This is useful
3181 if there are more than one element where the comparing function
3185 *) Make it possible to create self-signed certificates with 'openssl ca'
3186 in such a way that the self-signed certificate becomes part of the
3187 CA database and uses the same mechanisms for serial number generation
3188 as all other certificate signing. The new flag '-selfsign' enables
3189 this functionality. Adapt CA.sh and CA.pl.in.
3192 *) Add functionality to check the public key of a certificate request
3193 against a given private. This is useful to check that a certificate
3194 request can be signed by that key (self-signing).
3197 *) Make it possible to have multiple active certificates with the same
3198 subject in the CA index file. This is done only if the keyword
3199 'unique_subject' is set to 'no' in the main CA section (default
3200 if 'CA_default') of the configuration file. The value is saved
3201 with the database itself in a separate index attribute file,
3202 named like the index file with '.attr' appended to the name.
3205 *) Generate muti valued AVAs using '+' notation in config files for
3209 *) Support for nameConstraints certificate extension.
3212 *) Support for policyConstraints certificate extension.
3215 *) Support for policyMappings certificate extension.
3218 *) Make sure the default DSA_METHOD implementation only uses its
3219 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3220 and change its own handlers to be NULL so as to remove unnecessary
3221 indirection. This lets alternative implementations fallback to the
3222 default implementation more easily.
3225 *) Support for directoryName in GeneralName related extensions
3229 *) Make it possible to link applications using Makefile.shared.
3230 Make that possible even when linking against static libraries!
3233 *) Support for single pass processing for S/MIME signing. This now
3234 means that S/MIME signing can be done from a pipe, in addition
3235 cleartext signing (multipart/signed type) is effectively streaming
3236 and the signed data does not need to be all held in memory.
3238 This is done with a new flag PKCS7_STREAM. When this flag is set
3239 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3240 is done after the data is output (and digests calculated) in
3241 SMIME_write_PKCS7().
3244 *) Add full support for -rpath/-R, both in shared libraries and
3245 applications, at least on the platforms where it's known how
3249 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3250 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3251 will now compute a table of multiples of the generator that
3252 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3253 faster (notably in the case of a single point multiplication,
3254 scalar * generator).
3255 [Nils Larsch, Bodo Moeller]
3257 *) IPv6 support for certificate extensions. The various extensions
3258 which use the IP:a.b.c.d can now take IPv6 addresses using the
3259 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3263 *) Added an ENGINE that implements RSA by performing private key
3264 exponentiations with the GMP library. The conversions to and from
3265 GMP's mpz_t format aren't optimised nor are any montgomery forms
3266 cached, and on x86 it appears OpenSSL's own performance has caught up.
3267 However there are likely to be other architectures where GMP could
3268 provide a boost. This ENGINE is not built in by default, but it can be
3269 specified at Configure time and should be accompanied by the necessary
3270 linker additions, eg;
3271 ./config -DOPENSSL_USE_GMP -lgmp
3274 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3275 testing availability of engines with "-t" - the old behaviour is
3276 produced by increasing the feature's verbosity with "-tt".
3279 *) ECDSA routines: under certain error conditions uninitialized BN objects
3280 could be freed. Solution: make sure initialization is performed early
3281 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3285 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3286 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3287 software implementations. For DSA and DH, parameter generation can
3288 also be overriden by providing the appropriate method callbacks.
3291 *) Change the "progress" mechanism used in key-generation and
3292 primality testing to functions that take a new BN_GENCB pointer in
3293 place of callback/argument pairs. The new API functions have "_ex"
3294 postfixes and the older functions are reimplemented as wrappers for
3295 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3296 declarations of the old functions to help (graceful) attempts to
3297 migrate to the new functions. Also, the new key-generation API
3298 functions operate on a caller-supplied key-structure and return
3299 success/failure rather than returning a key or NULL - this is to
3300 help make "keygen" another member function of RSA_METHOD etc.
3302 Example for using the new callback interface:
3304 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3308 BN_GENCB_set(&my_cb, my_callback, my_arg);
3310 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3311 /* For the meaning of a, b in calls to my_callback(), see the
3312 * documentation of the function that calls the callback.
3313 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3314 * my_callback should return 1 if it wants BN_is_prime_ex()
3315 * to continue, or 0 to stop.
3320 *) Change the ZLIB compression method to be stateful, and make it
3321 available to TLS with the number defined in
3322 draft-ietf-tls-compression-04.txt.
3325 *) Add the ASN.1 structures and functions for CertificatePair, which
3326 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3328 CertificatePair ::= SEQUENCE {
3329 forward [0] Certificate OPTIONAL,
3330 reverse [1] Certificate OPTIONAL,
3331 -- at least one of the pair shall be present -- }
3333 Also implement the PEM functions to read and write certificate
3334 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3336 This needed to be defined, mostly for the sake of the LDAP
3337 attribute crossCertificatePair, but may prove useful elsewhere as
3341 *) Make it possible to inhibit symlinking of shared libraries in
3342 Makefile.shared, for Cygwin's sake.
3345 *) Extend the BIGNUM API by creating a function
3346 void BN_set_negative(BIGNUM *a, int neg);
3347 and a macro that behave like
3348 int BN_is_negative(const BIGNUM *a);
3350 to avoid the need to access 'a->neg' directly in applications.
3353 *) Implement fast modular reduction for pseudo-Mersenne primes
3354 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3355 EC_GROUP_new_curve_GFp() will now automatically use this
3357 [Nils Larsch <nla@trustcenter.de>]
3359 *) Add new lock type (CRYPTO_LOCK_BN).
3362 *) Change the ENGINE framework to automatically load engines
3363 dynamically from specific directories unless they could be
3364 found to already be built in or loaded. Move all the
3365 current engines except for the cryptodev one to a new
3367 The engines in engines/ are built as shared libraries if
3368 the "shared" options was given to ./Configure or ./config.
3369 Otherwise, they are inserted in libcrypto.a.
3370 /usr/local/ssl/engines is the default directory for dynamic
3371 engines, but that can be overriden at configure time through
3372 the usual use of --prefix and/or --openssldir, and at run
3373 time with the environment variable OPENSSL_ENGINES.
3374 [Geoff Thorpe and Richard Levitte]
3376 *) Add Makefile.shared, a helper makefile to build shared
3377 libraries. Addapt Makefile.org.
3380 *) Add version info to Win32 DLLs.
3381 [Peter 'Luna' Runestig" <peter@runestig.com>]
3383 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3384 can be added using this API to created arbitrary PKCS#12
3385 files while avoiding the low level API.
3387 New options to PKCS12_create(), key or cert can be NULL and
3388 will then be omitted from the output file. The encryption
3389 algorithm NIDs can be set to -1 for no encryption, the mac
3390 iteration count can be set to 0 to omit the mac.
3392 Enhance pkcs12 utility by making the -nokeys and -nocerts
3393 options work when creating a PKCS#12 file. New option -nomac
3394 to omit the mac, NONE can be set for an encryption algorithm.
3395 New code is modified to use the enhanced PKCS12_create()
3396 instead of the low level API.
3399 *) Extend ASN1 encoder to support indefinite length constructed
3400 encoding. This can output sequences tags and octet strings in
3401 this form. Modify pk7_asn1.c to support indefinite length
3402 encoding. This is experimental and needs additional code to
3403 be useful, such as an ASN1 bio and some enhanced streaming
3406 Extend template encode functionality so that tagging is passed
3407 down to the template encoder.
3410 *) Let 'openssl req' fail if an argument to '-newkey' is not
3411 recognized instead of using RSA as a default.
3414 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3415 As these are not official, they are not included in "ALL";
3416 the "ECCdraft" ciphersuite group alias can be used to select them.
3417 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3419 *) Add ECDH engine support.
3420 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3422 *) Add ECDH in new directory crypto/ecdh/.
3423 [Douglas Stebila (Sun Microsystems Laboratories)]
3425 *) Let BN_rand_range() abort with an error after 100 iterations
3426 without success (which indicates a broken PRNG).
3429 *) Change BN_mod_sqrt() so that it verifies that the input value
3430 is really the square of the return value. (Previously,
3431 BN_mod_sqrt would show GIGO behaviour.)
3434 *) Add named elliptic curves over binary fields from X9.62, SECG,
3435 and WAP/WTLS; add OIDs that were still missing.
3437 [Sheueling Chang Shantz and Douglas Stebila
3438 (Sun Microsystems Laboratories)]
3440 *) Extend the EC library for elliptic curves over binary fields
3441 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3444 EC_GF2m_simple_method
3448 EC_GROUP_new_curve_GF2m
3449 EC_GROUP_set_curve_GF2m
3450 EC_GROUP_get_curve_GF2m
3451 EC_POINT_set_affine_coordinates_GF2m
3452 EC_POINT_get_affine_coordinates_GF2m
3453 EC_POINT_set_compressed_coordinates_GF2m
3455 Point compression for binary fields is disabled by default for
3456 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3459 As binary polynomials are represented as BIGNUMs, various members
3460 of the EC_GROUP and EC_POINT data structures can be shared
3461 between the implementations for prime fields and binary fields;
3462 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3463 are essentially identical to their ..._GFp counterparts.
3464 (For simplicity, the '..._GFp' prefix has been dropped from
3465 various internal method names.)
3467 An internal 'field_div' method (similar to 'field_mul' and
3468 'field_sqr') has been added; this is used only for binary fields.
3470 [Sheueling Chang Shantz and Douglas Stebila
3471 (Sun Microsystems Laboratories)]
3473 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3474 through methods ('mul', 'precompute_mult').
3476 The generic implementations (now internally called 'ec_wNAF_mul'
3477 and 'ec_wNAF_precomputed_mult') remain the default if these
3478 methods are undefined.
3480 [Sheueling Chang Shantz and Douglas Stebila
3481 (Sun Microsystems Laboratories)]
3483 *) New function EC_GROUP_get_degree, which is defined through
3484 EC_METHOD. For curves over prime fields, this returns the bit
3485 length of the modulus.
3487 [Sheueling Chang Shantz and Douglas Stebila
3488 (Sun Microsystems Laboratories)]
3490 *) New functions EC_GROUP_dup, EC_POINT_dup.
3491 (These simply call ..._new and ..._copy).
3493 [Sheueling Chang Shantz and Douglas Stebila
3494 (Sun Microsystems Laboratories)]
3496 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3497 Polynomials are represented as BIGNUMs (where the sign bit is not
3498 used) in the following functions [macros]:
3501 BN_GF2m_sub [= BN_GF2m_add]
3502 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3503 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3504 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3506 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3507 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3508 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3509 BN_GF2m_cmp [= BN_ucmp]
3511 (Note that only the 'mod' functions are actually for fields GF(2^m).
3512 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3514 For some functions, an the irreducible polynomial defining a
3515 field can be given as an 'unsigned int[]' with strictly
3516 decreasing elements giving the indices of those bits that are set;
3517 i.e., p[] represents the polynomial
3518 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3520 p[0] > p[1] > ... > p[k] = 0.
3521 This applies to the following functions:
3526 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3527 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3529 BN_GF2m_mod_sqrt_arr
3530 BN_GF2m_mod_solve_quad_arr
3534 Conversion can be performed by the following functions:
3539 bntest.c has additional tests for binary polynomial arithmetic.
3541 Two implementations for BN_GF2m_mod_div() are available.
3542 The default algorithm simply uses BN_GF2m_mod_inv() and
3543 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3544 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3545 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3547 [Sheueling Chang Shantz and Douglas Stebila
3548 (Sun Microsystems Laboratories)]
3550 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3551 functionality is disabled at compile-time.
3552 [Douglas Stebila <douglas.stebila@sun.com>]
3554 *) Change default behaviour of 'openssl asn1parse' so that more
3555 information is visible when viewing, e.g., a certificate:
3557 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3558 mode the content of non-printable OCTET STRINGs is output in a
3559 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3560 avoid the appearance of a printable string.
3561 [Nils Larsch <nla@trustcenter.de>]
3563 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3565 EC_GROUP_set_asn1_flag()
3566 EC_GROUP_get_asn1_flag()
3567 EC_GROUP_set_point_conversion_form()
3568 EC_GROUP_get_point_conversion_form()
3569 These control ASN1 encoding details:
3570 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3571 has been set to OPENSSL_EC_NAMED_CURVE.
3572 - Points are encoded in uncompressed form by default; options for
3573 asn1_for are as for point2oct, namely
3574 POINT_CONVERSION_COMPRESSED
3575 POINT_CONVERSION_UNCOMPRESSED
3576 POINT_CONVERSION_HYBRID
3578 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3581 EC_GROUP_get0_seed()
3582 EC_GROUP_get_seed_len()
3583 This is used only for ASN1 purposes (so far).
3584 [Nils Larsch <nla@trustcenter.de>]
3586 *) Add 'field_type' member to EC_METHOD, which holds the NID
3587 of the appropriate field type OID. The new function
3588 EC_METHOD_get_field_type() returns this value.
3589 [Nils Larsch <nla@trustcenter.de>]
3594 EC_POINT_point2hex()
3595 EC_POINT_hex2point()
3596 providing useful interfaces to EC_POINT_point2oct() and
3597 EC_POINT_oct2point().
3598 [Nils Larsch <nla@trustcenter.de>]
3600 *) Change internals of the EC library so that the functions
3601 EC_GROUP_set_generator()
3602 EC_GROUP_get_generator()
3603 EC_GROUP_get_order()
3604 EC_GROUP_get_cofactor()
3605 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3606 to methods, which would lead to unnecessary code duplication when
3607 adding different types of curves.
3608 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3610 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3611 arithmetic, and such that modified wNAFs are generated
3612 (which avoid length expansion in many cases).
3615 *) Add a function EC_GROUP_check_discriminant() (defined via
3616 EC_METHOD) that verifies that the curve discriminant is non-zero.
3618 Add a function EC_GROUP_check() that makes some sanity tests
3619 on a EC_GROUP, its generator and order. This includes
3620 EC_GROUP_check_discriminant().
3621 [Nils Larsch <nla@trustcenter.de>]
3623 *) Add ECDSA in new directory crypto/ecdsa/.
3625 Add applications 'openssl ecparam' and 'openssl ecdsa'
3626 (these are based on 'openssl dsaparam' and 'openssl dsa').
3628 ECDSA support is also included in various other files across the
3629 library. Most notably,
3630 - 'openssl req' now has a '-newkey ecdsa:file' option;
3631 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3632 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3633 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3634 them suitable for ECDSA where domain parameters must be
3635 extracted before the specific public key;
3636 - ECDSA engine support has been added.
3637 [Nils Larsch <nla@trustcenter.de>]
3639 *) Include some named elliptic curves, and add OIDs from X9.62,
3640 SECG, and WAP/WTLS. Each curve can be obtained from the new
3642 EC_GROUP_new_by_curve_name(),
3643 and the list of available named curves can be obtained with
3644 EC_get_builtin_curves().
3645 Also add a 'curve_name' member to EC_GROUP objects, which can be
3647 EC_GROUP_set_curve_name()
3648 EC_GROUP_get_curve_name()
3649 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3651 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3652 was actually never needed) and in BN_mul(). The removal in BN_mul()
3653 required a small change in bn_mul_part_recursive() and the addition
3654 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3655 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3656 bn_sub_words() and bn_add_words() except they take arrays with
3660 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3662 *) Cleanse PEM buffers before freeing them since they may contain
3664 [Benjamin Bennett <ben@psc.edu>]
3666 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3667 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3668 authentication-only ciphersuites.
3671 *) Since AES128 and AES256 share a single mask bit in the logic of
3672 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3673 kludge to work properly if AES128 is available and AES256 isn't.
3676 *) Expand security boundary to match 1.1.1 module.
3679 *) Remove redundant features: hash file source, editing of test vectors
3680 modify fipsld to use external fips_premain.c signature.
3683 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3684 run algorithm test programs.
3687 *) Make algorithm test programs more tolerant of whitespace.
3690 *) Have SSL/TLS server implementation tolerate "mismatched" record
3691 protocol version while receiving ClientHello even if the
3692 ClientHello is fragmented. (The server can't insist on the
3693 particular protocol version it has chosen before the ServerHello
3694 message has informed the client about his choice.)
3697 *) Load error codes if they are not already present instead of using a
3698 static variable. This allows them to be cleanly unloaded and reloaded.
3701 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3703 *) Introduce limits to prevent malicious keys being able to
3704 cause a denial of service. (CVE-2006-2940)
3705 [Steve Henson, Bodo Moeller]
3707 *) Fix ASN.1 parsing of certain invalid structures that can result
3708 in a denial of service. (CVE-2006-2937) [Steve Henson]
3710 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3711 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3713 *) Fix SSL client code which could crash if connecting to a
3714 malicious SSLv2 server. (CVE-2006-4343)
3715 [Tavis Ormandy and Will Drewry, Google Security Team]
3717 *) Change ciphersuite string processing so that an explicit
3718 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3719 will no longer include "AES128-SHA"), and any other similar
3720 ciphersuite (same bitmap) from *other* protocol versions (so that
3721 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3722 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3723 changes from 0.9.8b and 0.9.8d.
3726 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3728 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3729 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3731 *) Change the Unix randomness entropy gathering to use poll() when
3732 possible instead of select(), since the latter has some
3733 undesirable limitations.
3734 [Darryl Miles via Richard Levitte and Bodo Moeller]
3736 *) Disable rogue ciphersuites:
3738 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3739 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3740 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3742 The latter two were purportedly from
3743 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3746 Also deactive the remaining ciphersuites from
3747 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3748 unofficial, and the ID has long expired.
3751 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3752 dual-core machines) and other potential thread-safety issues.
3755 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3757 *) Adapt fipsld and the build system to link against the validated FIPS
3758 module in FIPS mode.
3761 *) Fixes for VC++ 2005 build under Windows.
3764 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3765 from a Windows bash shell such as MSYS. It is autodetected from the
3766 "config" script when run from a VC++ environment. Modify standard VC++
3767 build to use fipscanister.o from the GNU make build.
3770 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3772 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3773 The value now differs depending on if you build for FIPS or not.
3774 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3775 safely run with a non-FIPSed libcrypto, as it may crash because of
3776 the difference induced by this change.
3779 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3781 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3782 (part of SSL_OP_ALL). This option used to disable the
3783 countermeasure against man-in-the-middle protocol-version
3784 rollback in the SSL 2.0 server implementation, which is a bad
3785 idea. (CVE-2005-2969)
3787 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3788 for Information Security, National Institute of Advanced Industrial
3789 Science and Technology [AIST], Japan)]
3791 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3792 mainly for FIPS compliance and not fully integrated at this stage.
3795 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3796 the exponentiation using a fixed-length exponent. (Otherwise,
3797 the information leaked through timing could expose the secret key
3798 after many signatures; cf. Bleichenbacher's attack on DSA with
3802 *) Make a new fixed-window mod_exp implementation the default for
3803 RSA, DSA, and DH private-key operations so that the sequence of
3804 squares and multiplies and the memory access pattern are
3805 independent of the particular secret key. This will mitigate
3806 cache-timing and potential related attacks.
3808 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3809 and this is automatically used by BN_mod_exp_mont() if the new flag
3810 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3811 will use this BN flag for private exponents unless the flag
3812 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3813 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3815 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3817 *) Change the client implementation for SSLv23_method() and
3818 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3819 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3820 (Previously, the SSL 2.0 backwards compatible Client Hello
3821 message format would be used even with SSL_OP_NO_SSLv2.)
3824 *) Add support for smime-type MIME parameter in S/MIME messages which some
3828 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3829 a threadsafe manner. Modify rsa code to use new function and add calls
3830 to dsa and dh code (which had race conditions before).
3833 *) Include the fixed error library code in the C error file definitions
3834 instead of fixing them up at runtime. This keeps the error code
3835 structures constant.
3838 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3840 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3843 *) Fixes for newer kerberos headers. NB: the casts are needed because
3844 the 'length' field is signed on one version and unsigned on another
3845 with no (?) obvious way to tell the difference, without these VC++
3846 complains. Also the "definition" of FAR (blank) is no longer included
3847 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3848 some needed definitions.
3851 *) Undo Cygwin change.
3854 *) Added support for proxy certificates according to RFC 3820.
3855 Because they may be a security thread to unaware applications,
3856 they must be explicitely allowed in run-time. See
3857 docs/HOWTO/proxy_certificates.txt for further information.
3860 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3862 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3863 server and client random values. Previously
3864 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3865 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3867 This change has negligible security impact because:
3869 1. Server and client random values still have 24 bytes of pseudo random
3872 2. Server and client random values are sent in the clear in the initial
3875 3. The master secret is derived using the premaster secret (48 bytes in
3876 size for static RSA ciphersuites) as well as client server and random
3879 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3882 [Stephen Henson, reported by UK NISCC]
3884 *) Use Windows randomness collection on Cygwin.
3887 *) Fix hang in EGD/PRNGD query when communication socket is closed
3888 prematurely by EGD/PRNGD.
3889 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3891 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3894 *) Back-port of selected performance improvements from development
3895 branch, as well as improved support for PowerPC platforms.
3898 *) Add lots of checks for memory allocation failure, error codes to indicate
3899 failure and freeing up memory if a failure occurs.
3900 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3902 *) Add new -passin argument to dgst.
3905 *) Perform some character comparisons of different types in X509_NAME_cmp:
3906 this is needed for some certificates that reencode DNs into UTF8Strings
3907 (in violation of RFC3280) and can't or wont issue name rollover
3911 *) Make an explicit check during certificate validation to see that
3912 the CA setting in each certificate on the chain is correct. As a
3913 side effect always do the following basic checks on extensions,
3914 not just when there's an associated purpose to the check:
3916 - if there is an unhandled critical extension (unless the user
3917 has chosen to ignore this fault)
3918 - if the path length has been exceeded (if one is set at all)
3919 - that certain extensions fit the associated purpose (if one has
3923 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3925 *) Avoid a race condition when CRLs are checked in a multi threaded
3926 environment. This would happen due to the reordering of the revoked
3927 entries during signature checking and serial number lookup. Now the
3928 encoding is cached and the serial number sort performed under a lock.
3929 Add new STACK function sk_is_sorted().
3932 *) Add Delta CRL to the extension code.
3935 *) Various fixes to s3_pkt.c so alerts are sent properly.
3936 [David Holmes <d.holmes@f5.com>]
3938 *) Reduce the chances of duplicate issuer name and serial numbers (in
3939 violation of RFC3280) using the OpenSSL certificate creation utilities.
3940 This is done by creating a random 64 bit value for the initial serial
3941 number when a serial number file is created or when a self signed
3942 certificate is created using 'openssl req -x509'. The initial serial
3943 number file is created using 'openssl x509 -next_serial' in CA.pl
3944 rather than being initialized to 1.
3947 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3949 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3950 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3951 [Joe Orton, Steve Henson]
3953 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3955 [Joe Orton, Steve Henson]
3957 *) Make it possible to have multiple active certificates with the same
3958 subject in the CA index file. This is done only if the keyword
3959 'unique_subject' is set to 'no' in the main CA section (default
3960 if 'CA_default') of the configuration file. The value is saved
3961 with the database itself in a separate index attribute file,
3962 named like the index file with '.attr' appended to the name.
3965 *) X509 verify fixes. Disable broken certificate workarounds when
3966 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3967 keyUsage extension present. Don't accept CRLs with unhandled critical
3968 extensions: since verify currently doesn't process CRL extensions this
3969 rejects a CRL with *any* critical extensions. Add new verify error codes
3973 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3974 A clarification of RFC2560 will require the use of OCTET STRINGs and
3975 some implementations cannot handle the current raw format. Since OpenSSL
3976 copies and compares OCSP nonces as opaque blobs without any attempt at
3977 parsing them this should not create any compatibility issues.
3980 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3981 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3982 this HMAC (and other) operations are several times slower than OpenSSL
3986 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3987 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3989 *) Use the correct content when signing type "other".
3992 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3994 *) Fix various bugs revealed by running the NISCC test suite:
3996 Stop out of bounds reads in the ASN1 code when presented with
3997 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3999 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4001 If verify callback ignores invalid public key errors don't try to check
4002 certificate signature with the NULL public key.
4006 *) New -ignore_err option in ocsp application to stop the server
4007 exiting on the first error in a request.
4010 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4011 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4015 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4016 extra data after the compression methods not only for TLS 1.0
4017 but also for SSL 3.0 (as required by the specification).
4018 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4020 *) Change X509_certificate_type() to mark the key as exported/exportable
4021 when it's 512 *bits* long, not 512 bytes.
4024 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4025 blocks during encryption.
4028 *) Various fixes to base64 BIO and non blocking I/O. On write
4029 flushes were not handled properly if the BIO retried. On read
4030 data was not being buffered properly and had various logic bugs.
4031 This also affects blocking I/O when the data being decoded is a
4035 *) Various S/MIME bugfixes and compatibility changes:
4036 output correct application/pkcs7 MIME type if
4037 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4038 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4039 of files as .eml work). Correctly handle very long lines in MIME
4043 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4045 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4046 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4047 a protocol version number mismatch like a decryption error
4048 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4051 *) Turn on RSA blinding by default in the default implementation
4052 to avoid a timing attack. Applications that don't want it can call
4053 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4054 They would be ill-advised to do so in most cases.
4055 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4057 *) Change RSA blinding code so that it works when the PRNG is not
4058 seeded (in this case, the secret RSA exponent is abused as
4059 an unpredictable seed -- if it is not unpredictable, there
4060 is no point in blinding anyway). Make RSA blinding thread-safe
4061 by remembering the creator's thread ID in rsa->blinding and
4062 having all other threads use local one-time blinding factors
4063 (this requires more computation than sharing rsa->blinding, but
4064 avoids excessive locking; and if an RSA object is not shared
4065 between threads, blinding will still be very fast).
4068 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4069 ENGINE as defaults for all supported algorithms irrespective of
4070 the 'flags' parameter. 'flags' is now honoured, so applications
4071 should make sure they are passing it correctly.
4074 *) Target "mingw" now allows native Windows code to be generated in
4075 the Cygwin environment as well as with the MinGW compiler.
4078 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4080 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4081 via timing by performing a MAC computation even if incorrrect
4082 block cipher padding has been found. This is a countermeasure
4083 against active attacks where the attacker has to distinguish
4084 between bad padding and a MAC verification error. (CVE-2003-0078)
4086 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4087 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4088 Martin Vuagnoux (EPFL, Ilion)]
4090 *) Make the no-err option work as intended. The intention with no-err
4091 is not to have the whole error stack handling routines removed from
4092 libcrypto, it's only intended to remove all the function name and
4093 reason texts, thereby removing some of the footprint that may not
4094 be interesting if those errors aren't displayed anyway.
4096 NOTE: it's still possible for any application or module to have it's
4097 own set of error texts inserted. The routines are there, just not
4098 used by default when no-err is given.
4101 *) Add support for FreeBSD on IA64.
4102 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4104 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4105 Kerberos function mit_des_cbc_cksum(). Before this change,
4106 the value returned by DES_cbc_cksum() was like the one from
4107 mit_des_cbc_cksum(), except the bytes were swapped.
4108 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4110 *) Allow an application to disable the automatic SSL chain building.
4111 Before this a rather primitive chain build was always performed in
4112 ssl3_output_cert_chain(): an application had no way to send the
4113 correct chain if the automatic operation produced an incorrect result.
4115 Now the chain builder is disabled if either:
4117 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4119 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4121 The reasoning behind this is that an application would not want the
4122 auto chain building to take place if extra chain certificates are
4123 present and it might also want a means of sending no additional
4124 certificates (for example the chain has two certificates and the
4128 *) Add the possibility to build without the ENGINE framework.
4129 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4131 *) Under Win32 gmtime() can return NULL: check return value in
4132 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4135 *) DSA routines: under certain error conditions uninitialized BN objects
4136 could be freed. Solution: make sure initialization is performed early
4137 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4138 Nils Larsch <nla@trustcenter.de> via PR#459)
4141 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4142 checked on reconnect on the client side, therefore session resumption
4143 could still fail with a "ssl session id is different" error. This
4144 behaviour is masked when SSL_OP_ALL is used due to
4145 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4146 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4147 followup to PR #377.
4150 *) IA-32 assembler support enhancements: unified ELF targets, support
4151 for SCO/Caldera platforms, fix for Cygwin shared build.
4154 *) Add support for FreeBSD on sparc64. As a consequence, support for
4155 FreeBSD on non-x86 processors is separate from x86 processors on
4156 the config script, much like the NetBSD support.
4157 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4159 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4161 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4164 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4165 code (06) was taken as the first octet of the session ID and the last
4166 octet was ignored consequently. As a result SSLv2 client side session
4167 caching could not have worked due to the session ID mismatch between
4169 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4173 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4174 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4178 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4179 seems that in spite of existing for more than a year, many application
4180 author have done nothing to provide the necessary callbacks, which
4181 means that this particular engine will not work properly anywhere.
4182 This is a very unfortunate situation which forces us, in the name
4183 of usability, to give the hw_ncipher.c a static lock, which is part
4185 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4186 appear in 0.9.8 or later. We EXPECT application authors to have
4187 dealt properly with this when 0.9.8 is released (unless we actually
4188 make such changes in the libcrypto locking code that changes will
4189 have to be made anyway).
4192 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4193 octets have been read, EOF or an error occurs. Without this change
4194 some truncated ASN1 structures will not produce an error.
4197 *) Disable Heimdal support, since it hasn't been fully implemented.
4198 Still give the possibility to force the use of Heimdal, but with
4199 warnings and a request that patches get sent to openssl-dev.
4202 *) Add the VC-CE target, introduce the WINCE sysname, and add
4203 INSTALL.WCE and appropriate conditionals to make it build.
4204 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4206 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4207 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4208 edit numbers of the version.
4209 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4211 *) Introduce safe string copy and catenation functions
4212 (BUF_strlcpy() and BUF_strlcat()).
4213 [Ben Laurie (CHATS) and Richard Levitte]
4215 *) Avoid using fixed-size buffers for one-line DNs.
4216 [Ben Laurie (CHATS)]
4218 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4219 resizing buffers containing secrets, and use where appropriate.
4220 [Ben Laurie (CHATS)]
4222 *) Avoid using fixed size buffers for configuration file location.
4223 [Ben Laurie (CHATS)]
4225 *) Avoid filename truncation for various CA files.
4226 [Ben Laurie (CHATS)]
4228 *) Use sizeof in preference to magic numbers.
4229 [Ben Laurie (CHATS)]
4231 *) Avoid filename truncation in cert requests.
4232 [Ben Laurie (CHATS)]
4234 *) Add assertions to check for (supposedly impossible) buffer
4236 [Ben Laurie (CHATS)]
4238 *) Don't cache truncated DNS entries in the local cache (this could
4239 potentially lead to a spoofing attack).
4240 [Ben Laurie (CHATS)]
4242 *) Fix various buffers to be large enough for hex/decimal
4243 representations in a platform independent manner.
4244 [Ben Laurie (CHATS)]
4246 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4247 resizing buffers containing secrets, and use where appropriate.
4248 [Ben Laurie (CHATS)]
4250 *) Add BIO_indent() to avoid much slightly worrying code to do
4252 [Ben Laurie (CHATS)]
4254 *) Convert sprintf()/BIO_puts() to BIO_printf().
4255 [Ben Laurie (CHATS)]
4257 *) buffer_gets() could terminate with the buffer only half
4259 [Ben Laurie (CHATS)]
4261 *) Add assertions to prevent user-supplied crypto functions from
4262 overflowing internal buffers by having large block sizes, etc.
4263 [Ben Laurie (CHATS)]
4265 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4267 [Ben Laurie (CHATS)]
4269 *) Eliminate unused copy of key in RC4.
4270 [Ben Laurie (CHATS)]
4272 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4273 [Ben Laurie (CHATS)]
4275 *) Fix off-by-one error in EGD path.
4276 [Ben Laurie (CHATS)]
4278 *) If RANDFILE path is too long, ignore instead of truncating.
4279 [Ben Laurie (CHATS)]
4281 *) Eliminate unused and incorrectly sized X.509 structure
4283 [Ben Laurie (CHATS)]
4285 *) Eliminate unused and dangerous function knumber().
4286 [Ben Laurie (CHATS)]
4288 *) Eliminate unused and dangerous structure, KSSL_ERR.
4289 [Ben Laurie (CHATS)]
4291 *) Protect against overlong session ID context length in an encoded
4292 session object. Since these are local, this does not appear to be
4294 [Ben Laurie (CHATS)]
4296 *) Change from security patch (see 0.9.6e below) that did not affect
4297 the 0.9.6 release series:
4299 Remote buffer overflow in SSL3 protocol - an attacker could
4300 supply an oversized master key in Kerberos-enabled versions.
4302 [Ben Laurie (CHATS)]
4304 *) Change the SSL kerb5 codes to match RFC 2712.
4307 *) Make -nameopt work fully for req and add -reqopt switch.
4308 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4310 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4311 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4313 *) Make sure tests can be performed even if the corresponding algorithms
4314 have been removed entirely. This was also the last step to make
4315 OpenSSL compilable with DJGPP under all reasonable conditions.
4316 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4318 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4319 to allow version independent disabling of normally unselected ciphers,
4320 which may be activated as a side-effect of selecting a single cipher.
4322 (E.g., cipher list string "RSA" enables ciphersuites that are left
4323 out of "ALL" because they do not provide symmetric encryption.
4324 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4325 [Lutz Jaenicke, Bodo Moeller]
4327 *) Add appropriate support for separate platform-dependent build
4328 directories. The recommended way to make a platform-dependent
4329 build directory is the following (tested on Linux), maybe with
4332 # Place yourself outside of the OpenSSL source tree. In
4333 # this example, the environment variable OPENSSL_SOURCE
4334 # is assumed to contain the absolute OpenSSL source directory.
4335 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4336 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4337 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4338 mkdir -p `dirname $F`
4339 ln -s $OPENSSL_SOURCE/$F $F
4342 To be absolutely sure not to disturb the source tree, a "make clean"
4343 is a good thing. If it isn't successfull, don't worry about it,
4344 it probably means the source directory is very clean.
4347 *) Make sure any ENGINE control commands make local copies of string
4348 pointers passed to them whenever necessary. Otherwise it is possible
4349 the caller may have overwritten (or deallocated) the original string
4350 data when a later ENGINE operation tries to use the stored values.
4351 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4353 *) Improve diagnostics in file reading and command-line digests.
4354 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4356 *) Add AES modes CFB and OFB to the object database. Correct an
4357 error in AES-CFB decryption.
4360 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4361 allows existing EVP_CIPHER_CTX structures to be reused after
4362 calling EVP_*Final(). This behaviour is used by encryption
4363 BIOs and some applications. This has the side effect that
4364 applications must explicitly clean up cipher contexts with
4365 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4368 *) Check the values of dna and dnb in bn_mul_recursive before calling
4369 bn_mul_comba (a non zero value means the a or b arrays do not contain
4370 n2 elements) and fallback to bn_mul_normal if either is not zero.
4373 *) Fix escaping of non-ASCII characters when using the -subj option
4374 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4377 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4378 form for "surname", serialNumber has no short form.
4379 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4380 therefore remove "mail" short name for "internet 7".
4381 The OID for unique identifiers in X509 certificates is
4382 x500UniqueIdentifier, not uniqueIdentifier.
4383 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4386 *) Add an "init" command to the ENGINE config module and auto initialize
4387 ENGINEs. Without any "init" command the ENGINE will be initialized
4388 after all ctrl commands have been executed on it. If init=1 the
4389 ENGINE is initailized at that point (ctrls before that point are run
4390 on the uninitialized ENGINE and after on the initialized one). If
4391 init=0 then the ENGINE will not be iniatialized at all.
4394 *) Fix the 'app_verify_callback' interface so that the user-defined
4395 argument is actually passed to the callback: In the
4396 SSL_CTX_set_cert_verify_callback() prototype, the callback
4397 declaration has been changed from
4400 int (*cb)(X509_STORE_CTX *,void *);
4401 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4402 i=s->ctx->app_verify_callback(&ctx)
4403 has been changed into
4404 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4406 To update applications using SSL_CTX_set_cert_verify_callback(),
4407 a dummy argument can be added to their callback functions.
4408 [D. K. Smetters <smetters@parc.xerox.com>]
4410 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4411 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4413 *) Add and OPENSSL_LOAD_CONF define which will cause
4414 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4415 This allows older applications to transparently support certain
4416 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4417 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4418 load the config file and OPENSSL_add_all_algorithms_conf() which will
4419 always load it have also been added.
4422 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4423 Adjust NIDs and EVP layer.
4424 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4426 *) Config modules support in openssl utility.
4428 Most commands now load modules from the config file,
4429 though in a few (such as version) this isn't done
4430 because it couldn't be used for anything.
4432 In the case of ca and req the config file used is
4433 the same as the utility itself: that is the -config
4434 command line option can be used to specify an
4438 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4439 use "openssl_conf" if filename is NULL use default openssl config file.
4442 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4443 config section name. Add a new flag to tolerate a missing config file
4444 and move code to CONF_modules_load_file().
4447 *) Support for crypto accelerator cards from Accelerated Encryption
4448 Processing, www.aep.ie. (Use engine 'aep')
4449 The support was copied from 0.9.6c [engine] and adapted/corrected
4450 to work with the new engine framework.
4451 [AEP Inc. and Richard Levitte]
4453 *) Support for SureWare crypto accelerator cards from Baltimore
4454 Technologies. (Use engine 'sureware')
4455 The support was copied from 0.9.6c [engine] and adapted
4456 to work with the new engine framework.
4459 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4460 make the newer ENGINE framework commands for the CHIL engine work.
4461 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4463 *) Make it possible to produce shared libraries on ReliantUNIX.
4464 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4466 *) Add the configuration target debug-linux-ppro.
4467 Make 'openssl rsa' use the general key loading routines
4468 implemented in apps.c, and make those routines able to
4469 handle the key format FORMAT_NETSCAPE and the variant
4471 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4473 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4474 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4476 *) Add -keyform to rsautl, and document -engine.
4477 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4479 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4480 BIO_R_NO_SUCH_FILE error code rather than the generic
4481 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4484 *) Add new functions
4486 ERR_peek_last_error_line
4487 ERR_peek_last_error_line_data.
4488 These are similar to
4491 ERR_peek_error_line_data,
4492 but report on the latest error recorded rather than the first one
4493 still in the error queue.
4494 [Ben Laurie, Bodo Moeller]
4496 *) default_algorithms option in ENGINE config module. This allows things
4498 default_algorithms = ALL
4499 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4502 *) Prelminary ENGINE config module.
4505 *) New experimental application configuration code.
4508 *) Change the AES code to follow the same name structure as all other
4509 symmetric ciphers, and behave the same way. Move everything to
4510 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4511 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4513 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4514 [Ben Laurie and Theo de Raadt]
4516 *) Add option to output public keys in req command.
4517 [Massimiliano Pala madwolf@openca.org]
4519 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4520 (up to about 10% better than before for P-192 and P-224).
4523 *) New functions/macros
4525 SSL_CTX_set_msg_callback(ctx, cb)
4526 SSL_CTX_set_msg_callback_arg(ctx, arg)
4527 SSL_set_msg_callback(ssl, cb)
4528 SSL_set_msg_callback_arg(ssl, arg)
4530 to request calling a callback function
4532 void cb(int write_p, int version, int content_type,
4533 const void *buf, size_t len, SSL *ssl, void *arg)
4535 whenever a protocol message has been completely received
4536 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4537 protocol version according to which the SSL library interprets
4538 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4539 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4540 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4541 specification (change_cipher_spec(20), alert(21), handshake(22)).
4542 'buf' and 'len' point to the actual message, 'ssl' to the
4543 SSL object, and 'arg' is the application-defined value set by
4544 SSL[_CTX]_set_msg_callback_arg().
4546 'openssl s_client' and 'openssl s_server' have new '-msg' options
4547 to enable a callback that displays all protocol messages.
4550 *) Change the shared library support so shared libraries are built as
4551 soon as the corresponding static library is finished, and thereby get
4552 openssl and the test programs linked against the shared library.
4553 This still only happens when the keyword "shard" has been given to
4554 the configuration scripts.
4556 NOTE: shared library support is still an experimental thing, and
4557 backward binary compatibility is still not guaranteed.
4558 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4560 *) Add support for Subject Information Access extension.
4561 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4563 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4564 additional bytes when new memory had to be allocated, not just
4565 when reusing an existing buffer.
4568 *) New command line and configuration option 'utf8' for the req command.
4569 This allows field values to be specified as UTF8 strings.
4572 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4573 runs for the former and machine-readable output for the latter.
4576 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4577 of the e-mail address in the DN (i.e., it will go into a certificate
4578 extension only). The new configuration file option 'email_in_dn = no'
4579 has the same effect.
4580 [Massimiliano Pala madwolf@openca.org]
4582 *) Change all functions with names starting with des_ to be starting
4583 with DES_ instead. Add wrappers that are compatible with libdes,
4584 but are named _ossl_old_des_*. Finally, add macros that map the
4585 des_* symbols to the corresponding _ossl_old_des_* if libdes
4586 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4587 desired, the des_* symbols will be mapped to DES_*, with one
4590 Since we provide two compatibility mappings, the user needs to
4591 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4592 compatibility is desired. The default (i.e., when that macro
4593 isn't defined) is OpenSSL 0.9.6c compatibility.
4595 There are also macros that enable and disable the support of old
4596 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4597 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4598 are defined, the default will apply: to support the old des routines.
4600 In either case, one must include openssl/des.h to get the correct
4601 definitions. Do not try to just include openssl/des_old.h, that
4604 NOTE: This is a major break of an old API into a new one. Software
4605 authors are encouraged to switch to the DES_ style functions. Some
4606 time in the future, des_old.h and the libdes compatibility functions
4607 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4608 default), and then completely removed.
4611 *) Test for certificates which contain unsupported critical extensions.
4612 If such a certificate is found during a verify operation it is
4613 rejected by default: this behaviour can be overridden by either
4614 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4615 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4616 X509_supported_extension() has also been added which returns 1 if a
4617 particular extension is supported.
4620 *) Modify the behaviour of EVP cipher functions in similar way to digests
4621 to retain compatibility with existing code.
4624 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4625 compatibility with existing code. In particular the 'ctx' parameter does
4626 not have to be to be initialized before the call to EVP_DigestInit() and
4627 it is tidied up after a call to EVP_DigestFinal(). New function
4628 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4629 EVP_MD_CTX_copy() changed to not require the destination to be
4630 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4631 requires the destination to be valid.
4633 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4634 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4637 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4638 so that complete 'Handshake' protocol structures are kept in memory
4639 instead of overwriting 'msg_type' and 'length' with 'body' data.
4642 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4643 [Massimo Santin via Richard Levitte]
4645 *) Major restructuring to the underlying ENGINE code. This includes
4646 reduction of linker bloat, separation of pure "ENGINE" manipulation
4647 (initialisation, etc) from functionality dealing with implementations
4648 of specific crypto iterfaces. This change also introduces integrated
4649 support for symmetric ciphers and digest implementations - so ENGINEs
4650 can now accelerate these by providing EVP_CIPHER and EVP_MD
4651 implementations of their own. This is detailed in crypto/engine/README
4652 as it couldn't be adequately described here. However, there are a few
4653 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4654 were changed in the original introduction of ENGINE code have now
4655 reverted back - the hooking from this code to ENGINE is now a good
4656 deal more passive and at run-time, operations deal directly with
4657 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4658 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4659 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4660 they were not being used by the framework as there is no concept of a
4661 BIGNUM_METHOD and they could not be generalised to the new
4662 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4663 ENGINE_cpy() has been removed as it cannot be consistently defined in
4667 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4670 *) Change mkdef.pl to sort symbols that get the same entry number,
4671 and make sure the automatically generated functions ERR_load_*
4672 become part of libeay.num as well.
4675 *) New function SSL_renegotiate_pending(). This returns true once
4676 renegotiation has been requested (either SSL_renegotiate() call
4677 or HelloRequest/ClientHello receveived from the peer) and becomes
4678 false once a handshake has been completed.
4679 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4680 sends a HelloRequest, but does not ensure that a handshake takes
4681 place. SSL_renegotiate_pending() is useful for checking if the
4682 client has followed the request.)
4685 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4686 By default, clients may request session resumption even during
4687 renegotiation (if session ID contexts permit); with this option,
4688 session resumption is possible only in the first handshake.
4690 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4691 more bits available for options that should not be part of
4692 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4695 *) Add some demos for certificate and certificate request creation.
4698 *) Make maximum certificate chain size accepted from the peer application
4699 settable (SSL*_get/set_max_cert_list()), as proposed by
4700 "Douglas E. Engert" <deengert@anl.gov>.
4703 *) Add support for shared libraries for Unixware-7
4704 (Boyd Lynn Gerber <gerberb@zenez.com>).
4707 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4708 be done prior to destruction. Use this to unload error strings from
4709 ENGINEs that load their own error strings. NB: This adds two new API
4710 functions to "get" and "set" this destroy handler in an ENGINE.
4713 *) Alter all existing ENGINE implementations (except "openssl" and
4714 "openbsd") to dynamically instantiate their own error strings. This
4715 makes them more flexible to be built both as statically-linked ENGINEs
4716 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4717 Also, add stub code to each that makes building them as self-contained
4718 shared-libraries easier (see README.ENGINE).
4721 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4722 implementations into applications that are completely implemented in
4723 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4724 commands that can be used to configure what shared-library to load and
4725 to control aspects of the way it is handled. Also, made an update to
4726 the README.ENGINE file that brings its information up-to-date and
4727 provides some information and instructions on the "dynamic" ENGINE
4728 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4731 *) Make it possible to unload ranges of ERR strings with a new
4732 "ERR_unload_strings" function.
4735 *) Add a copy() function to EVP_MD.
4738 *) Make EVP_MD routines take a context pointer instead of just the
4739 md_data void pointer.
4742 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4743 that the digest can only process a single chunk of data
4744 (typically because it is provided by a piece of
4745 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4746 is only going to provide a single chunk of data, and hence the
4747 framework needn't accumulate the data for oneshot drivers.
4750 *) As with "ERR", make it possible to replace the underlying "ex_data"
4751 functions. This change also alters the storage and management of global
4752 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4753 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4754 index counters. The API functions that use this state have been changed
4755 to take a "class_index" rather than pointers to the class's local STACK
4756 and counter, and there is now an API function to dynamically create new
4757 classes. This centralisation allows us to (a) plug a lot of the
4758 thread-safety problems that existed, and (b) makes it possible to clean
4759 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4760 such data would previously have always leaked in application code and
4761 workarounds were in place to make the memory debugging turn a blind eye
4762 to it. Application code that doesn't use this new function will still
4763 leak as before, but their memory debugging output will announce it now
4764 rather than letting it slide.
4766 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4767 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4768 has a return value to indicate success or failure.
4771 *) Make it possible to replace the underlying "ERR" functions such that the
4772 global state (2 LHASH tables and 2 locks) is only used by the "default"
4773 implementation. This change also adds two functions to "get" and "set"
4774 the implementation prior to it being automatically set the first time
4775 any other ERR function takes place. Ie. an application can call "get",
4776 pass the return value to a module it has just loaded, and that module
4777 can call its own "set" function using that value. This means the
4778 module's "ERR" operations will use (and modify) the error state in the
4779 application and not in its own statically linked copy of OpenSSL code.
4782 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4783 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4784 the operation, and provides a more encapsulated way for external code
4785 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4786 to use these functions rather than manually incrementing the counts.
4788 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4791 *) Add EVP test program.
4794 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4797 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4798 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4799 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4800 These allow a CRL to be built without having to access X509_CRL fields
4801 directly. Modify 'ca' application to use new functions.
4804 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4805 bug workarounds. Rollback attack detection is a security feature.
4806 The problem will only arise on OpenSSL servers when TLSv1 is not
4807 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4808 Software authors not wanting to support TLSv1 will have special reasons
4809 for their choice and can explicitly enable this option.
4810 [Bodo Moeller, Lutz Jaenicke]
4812 *) Rationalise EVP so it can be extended: don't include a union of
4813 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4814 (similar to those existing for EVP_CIPHER_CTX).
4819 EVP_MD_CTX_init(&md); /* new function call */
4820 EVP_DigestInit(&md, EVP_sha1());
4821 EVP_DigestUpdate(&md, in, len);
4822 EVP_DigestFinal(&md, out, NULL);
4823 EVP_MD_CTX_cleanup(&md); /* new function call */
4827 *) Make DES key schedule conform to the usual scheme, as well as
4828 correcting its structure. This means that calls to DES functions
4829 now have to pass a pointer to a des_key_schedule instead of a
4830 plain des_key_schedule (which was actually always a pointer
4833 des_key_schedule ks;
4835 des_set_key_checked(..., &ks);
4836 des_ncbc_encrypt(..., &ks, ...);
4838 (Note that a later change renames 'des_...' into 'DES_...'.)
4841 *) Initial reduction of linker bloat: the use of some functions, such as
4842 PEM causes large amounts of unused functions to be linked in due to
4843 poor organisation. For example pem_all.c contains every PEM function
4844 which has a knock on effect of linking in large amounts of (unused)
4845 ASN1 code. Grouping together similar functions and splitting unrelated
4846 functions prevents this.
4849 *) Cleanup of EVP macros.
4852 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4853 correct _ecb suffix.
4856 *) Add initial OCSP responder support to ocsp application. The
4857 revocation information is handled using the text based index
4858 use by the ca application. The responder can either handle
4859 requests generated internally, supplied in files (for example
4860 via a CGI script) or using an internal minimal server.
4863 *) Add configuration choices to get zlib compression for TLS.
4866 *) Changes to Kerberos SSL for RFC 2712 compliance:
4867 1. Implemented real KerberosWrapper, instead of just using
4868 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4869 2. Implemented optional authenticator field of KerberosWrapper.
4871 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4872 and authenticator structs; see crypto/krb5/.
4874 Generalized Kerberos calls to support multiple Kerberos libraries.
4875 [Vern Staats <staatsvr@asc.hpc.mil>,
4876 Jeffrey Altman <jaltman@columbia.edu>
4877 via Richard Levitte]
4879 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4880 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4881 values for each of the key sizes rather than having just
4882 parameters (and 'speed' generating keys each time).
4885 *) Speed up EVP routines.
4888 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4889 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4890 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4891 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4893 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4894 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4895 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4898 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4900 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4903 *) Added the OS2-EMX target.
4904 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4906 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4907 to support NCONF routines in extension code. New function CONF_set_nconf()
4908 to allow functions which take an NCONF to also handle the old LHASH
4909 structure: this means that the old CONF compatible routines can be
4910 retained (in particular wrt extensions) without having to duplicate the
4911 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4914 *) Enhance the general user interface with mechanisms for inner control
4915 and with possibilities to have yes/no kind of prompts.
4918 *) Change all calls to low level digest routines in the library and
4919 applications to use EVP. Add missing calls to HMAC_cleanup() and
4920 don't assume HMAC_CTX can be copied using memcpy().
4921 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4923 *) Add the possibility to control engines through control names but with
4924 arbitrary arguments instead of just a string.
4925 Change the key loaders to take a UI_METHOD instead of a callback
4926 function pointer. NOTE: this breaks binary compatibility with earlier
4927 versions of OpenSSL [engine].
4928 Adapt the nCipher code for these new conditions and add a card insertion
4932 *) Enhance the general user interface with mechanisms to better support
4933 dialog box interfaces, application-defined prompts, the possibility
4934 to use defaults (for example default passwords from somewhere else)
4935 and interrupts/cancellations.
4938 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4939 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4942 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4943 tidy up some unnecessarily weird code in 'sk_new()').
4944 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4946 *) Change the key loading routines for ENGINEs to use the same kind
4947 callback (pem_password_cb) as all other routines that need this
4951 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4952 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4953 than this minimum value is recommended.
4956 *) New random seeder for OpenVMS, using the system process statistics
4957 that are easily reachable.
4960 *) Windows apparently can't transparently handle global
4961 variables defined in DLLs. Initialisations such as:
4963 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4965 wont compile. This is used by the any applications that need to
4966 declare their own ASN1 modules. This was fixed by adding the option
4967 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4968 needed for static libraries under Win32.
4971 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4972 setting of purpose and trust fields. New X509_STORE trust and
4973 purpose functions and tidy up setting in other SSL functions.
4976 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4977 structure. These are inherited by X509_STORE_CTX when it is
4978 initialised. This allows various defaults to be set in the
4979 X509_STORE structure (such as flags for CRL checking and custom
4980 purpose or trust settings) for functions which only use X509_STORE_CTX
4981 internally such as S/MIME.
4983 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4984 trust settings if they are not set in X509_STORE. This allows X509_STORE
4985 purposes and trust (in S/MIME for example) to override any set by default.
4987 Add command line options for CRL checking to smime, s_client and s_server
4991 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4992 are set then the CRL is looked up in the X509_STORE structure and
4993 its validity and signature checked, then if the certificate is found
4994 in the CRL the verify fails with a revoked error.
4996 Various new CRL related callbacks added to X509_STORE_CTX structure.
4998 Command line options added to 'verify' application to support this.
5000 This needs some additional work, such as being able to handle multiple
5001 CRLs with different times, extension based lookup (rather than just
5002 by subject name) and ultimately more complete V2 CRL extension
5006 *) Add a general user interface API (crypto/ui/). This is designed
5007 to replace things like des_read_password and friends (backward
5008 compatibility functions using this new API are provided).
5009 The purpose is to remove prompting functions from the DES code
5010 section as well as provide for prompting through dialog boxes in
5011 a window system and the like.
5014 *) Add "ex_data" support to ENGINE so implementations can add state at a
5015 per-structure level rather than having to store it globally.
5018 *) Make it possible for ENGINE structures to be copied when retrieved by
5019 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5020 This causes the "original" ENGINE structure to act like a template,
5021 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5022 operational state can be localised to each ENGINE structure, despite the
5023 fact they all share the same "methods". New ENGINE structures returned in
5024 this case have no functional references and the return value is the single
5025 structural reference. This matches the single structural reference returned
5026 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5030 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5031 needs to match any other type at all we need to manually clear the
5035 *) Changes to the "openssl engine" utility to include;
5036 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5037 about an ENGINE's available control commands.
5038 - executing control commands from command line arguments using the
5039 '-pre' and '-post' switches. '-post' is only used if '-t' is
5040 specified and the ENGINE is successfully initialised. The syntax for
5041 the individual commands are colon-separated, for example;
5042 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5045 *) New dynamic control command support for ENGINEs. ENGINEs can now
5046 declare their own commands (numbers), names (strings), descriptions,
5047 and input types for run-time discovery by calling applications. A
5048 subset of these commands are implicitly classed as "executable"
5049 depending on their input type, and only these can be invoked through
5050 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5051 can be based on user input, config files, etc). The distinction is
5052 that "executable" commands cannot return anything other than a boolean
5053 result and can only support numeric or string input, whereas some
5054 discoverable commands may only be for direct use through
5055 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5056 pointers, or other custom uses. The "executable" commands are to
5057 support parameterisations of ENGINE behaviour that can be
5058 unambiguously defined by ENGINEs and used consistently across any
5059 OpenSSL-based application. Commands have been added to all the
5060 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5061 control over shared-library paths without source code alterations.
5064 *) Changed all ENGINE implementations to dynamically allocate their
5065 ENGINEs rather than declaring them statically. Apart from this being
5066 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5067 this also allows the implementations to compile without using the
5068 internal engine_int.h header.
5071 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5072 'const' value. Any code that should be able to modify a RAND_METHOD
5073 should already have non-const pointers to it (ie. they should only
5074 modify their own ones).
5077 *) Made a variety of little tweaks to the ENGINE code.
5078 - "atalla" and "ubsec" string definitions were moved from header files
5079 to C code. "nuron" string definitions were placed in variables
5080 rather than hard-coded - allowing parameterisation of these values
5081 later on via ctrl() commands.
5082 - Removed unused "#if 0"'d code.
5083 - Fixed engine list iteration code so it uses ENGINE_free() to release
5084 structural references.
5085 - Constified the RAND_METHOD element of ENGINE structures.
5086 - Constified various get/set functions as appropriate and added
5087 missing functions (including a catch-all ENGINE_cpy that duplicates
5088 all ENGINE values onto a new ENGINE except reference counts/state).
5089 - Removed NULL parameter checks in get/set functions. Setting a method
5090 or function to NULL is a way of cancelling out a previously set
5091 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5092 and doesn't justify the extra error symbols and code.
5093 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5094 flags from engine_int.h to engine.h.
5095 - Changed prototypes for ENGINE handler functions (init(), finish(),
5096 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5099 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5100 to the algorithm using long division. The binary algorithm can be
5101 used only if the modulus is odd. On 32-bit systems, it is faster
5102 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5103 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5104 up to 450 bits. In 64-bit environments, the binary algorithm
5105 appears to be advantageous for much longer moduli; here we use it
5106 for moduli up to 2048 bits.
5109 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5110 could not support the combine flag in choice fields.
5113 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5114 extensions from a certificate request to the certificate.
5117 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5118 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5119 file: this allows the display of the certificate about to be
5120 signed to be customised, to allow certain fields to be included
5121 or excluded and extension details. The old system didn't display
5122 multicharacter strings properly, omitted fields not in the policy
5123 and couldn't display additional details such as extensions.
5126 *) Function EC_POINTs_mul for multiple scalar multiplication
5127 of an arbitrary number of elliptic curve points
5128 \sum scalars[i]*points[i],
5129 optionally including the generator defined for the EC_GROUP:
5130 scalar*generator + \sum scalars[i]*points[i].
5132 EC_POINT_mul is a simple wrapper function for the typical case
5133 that the point list has just one item (besides the optional
5137 *) First EC_METHODs for curves over GF(p):
5139 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5140 operations and provides various method functions that can also
5141 operate with faster implementations of modular arithmetic.
5143 EC_GFp_mont_method() reuses most functions that are part of
5144 EC_GFp_simple_method, but uses Montgomery arithmetic.
5146 [Bodo Moeller; point addition and point doubling
5147 implementation directly derived from source code provided by
5148 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5150 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5151 crypto/ec/ec_lib.c):
5153 Curves are EC_GROUP objects (with an optional group generator)
5154 based on EC_METHODs that are built into the library.
5156 Points are EC_POINT objects based on EC_GROUP objects.
5158 Most of the framework would be able to handle curves over arbitrary
5159 finite fields, but as there are no obvious types for fields other
5160 than GF(p), some functions are limited to that for now.
5163 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5164 that the file contains a complete HTTP response.
5167 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5168 change the def and num file printf format specifier from "%-40sXXX"
5169 to "%-39s XXX". The latter will always guarantee a space after the
5170 field while the former will cause them to run together if the field
5171 is 40 of more characters long.
5174 *) Constify the cipher and digest 'method' functions and structures
5175 and modify related functions to take constant EVP_MD and EVP_CIPHER
5179 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5180 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5183 *) Modify EVP_Digest*() routines so they now return values. Although the
5184 internal software routines can never fail additional hardware versions
5188 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5190 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5191 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5194 ERR_R_NESTED_ASN1_ERROR
5196 ERR_R_MISSING_ASN1_EOS
5197 were 4 .. 9, conflicting with
5198 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5200 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5201 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5203 Add new error code 'ERR_R_INTERNAL_ERROR'.
5206 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5210 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5211 sets the subject name for a new request or supersedes the
5212 subject name in a given request. Formats that can be parsed are
5213 'CN=Some Name, OU=myOU, C=IT'
5215 'CN=Some Name/OU=myOU/C=IT'.
5217 Add options '-batch' and '-verbose' to 'openssl req'.
5218 [Massimiliano Pala <madwolf@hackmasters.net>]
5220 *) Introduce the possibility to access global variables through
5221 functions on platform were that's the best way to handle exporting
5222 global variables in shared libraries. To enable this functionality,
5223 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5224 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5225 is normally done by Configure or something similar).
5227 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5228 in the source file (foo.c) like this:
5230 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5231 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5233 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5234 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5236 OPENSSL_DECLARE_GLOBAL(int,foo);
5237 #define foo OPENSSL_GLOBAL_REF(foo)
5238 OPENSSL_DECLARE_GLOBAL(double,bar);
5239 #define bar OPENSSL_GLOBAL_REF(bar)
5241 The #defines are very important, and therefore so is including the
5242 header file everywhere where the defined globals are used.
5244 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5245 of ASN.1 items, but that structure is a bit different.
5247 The largest change is in util/mkdef.pl which has been enhanced with
5248 better and easier to understand logic to choose which symbols should
5249 go into the Windows .def files as well as a number of fixes and code
5250 cleanup (among others, algorithm keywords are now sorted
5251 lexicographically to avoid constant rewrites).
5254 *) In BN_div() keep a copy of the sign of 'num' before writing the
5255 result to 'rm' because if rm==num the value will be overwritten
5256 and produce the wrong result if 'num' is negative: this caused
5257 problems with BN_mod() and BN_nnmod().
5260 *) Function OCSP_request_verify(). This checks the signature on an
5261 OCSP request and verifies the signer certificate. The signer
5262 certificate is just checked for a generic purpose and OCSP request
5266 *) Add OCSP_check_validity() function to check the validity of OCSP
5267 responses. OCSP responses are prepared in real time and may only
5268 be a few seconds old. Simply checking that the current time lies
5269 between thisUpdate and nextUpdate max reject otherwise valid responses
5270 caused by either OCSP responder or client clock inaccuracy. Instead
5271 we allow thisUpdate and nextUpdate to fall within a certain period of
5272 the current time. The age of the response can also optionally be
5273 checked. Two new options -validity_period and -status_age added to
5277 *) If signature or public key algorithm is unrecognized print out its
5278 OID rather that just UNKNOWN.
5281 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5282 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5283 ID to be generated from the issuer certificate alone which can then be
5284 passed to OCSP_id_issuer_cmp().
5287 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5288 ASN1 modules to export functions returning ASN1_ITEM pointers
5289 instead of the ASN1_ITEM structures themselves. This adds several
5290 new macros which allow the underlying ASN1 function/structure to
5291 be accessed transparently. As a result code should not use ASN1_ITEM
5292 references directly (such as &X509_it) but instead use the relevant
5293 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5294 use of the new ASN1 code on platforms where exporting structures
5295 is problematical (for example in shared libraries) but exporting
5296 functions returning pointers to structures is not.
5299 *) Add support for overriding the generation of SSL/TLS session IDs.
5300 These callbacks can be registered either in an SSL_CTX or per SSL.
5301 The purpose of this is to allow applications to control, if they wish,
5302 the arbitrary values chosen for use as session IDs, particularly as it
5303 can be useful for session caching in multiple-server environments. A
5304 command-line switch for testing this (and any client code that wishes
5305 to use such a feature) has been added to "s_server".
5306 [Geoff Thorpe, Lutz Jaenicke]
5308 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5309 of the form '#if defined(...) || defined(...) || ...' and
5310 '#if !defined(...) && !defined(...) && ...'. This also avoids
5311 the growing number of special cases it was previously handling.
5314 *) Make all configuration macros available for application by making
5315 sure they are available in opensslconf.h, by giving them names starting
5316 with "OPENSSL_" to avoid conflicts with other packages and by making
5317 sure e_os2.h will cover all platform-specific cases together with
5319 Additionally, it is now possible to define configuration/platform-
5320 specific names (called "system identities"). In the C code, these
5321 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5322 macro with the name beginning with "OPENSSL_SYS_", which is determined
5323 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5327 *) New option -set_serial to 'req' and 'x509' this allows the serial
5328 number to use to be specified on the command line. Previously self
5329 signed certificates were hard coded with serial number 0 and the
5330 CA options of 'x509' had to use a serial number in a file which was
5334 *) New options to 'ca' utility to support V2 CRL entry extensions.
5335 Currently CRL reason, invalidity date and hold instruction are
5336 supported. Add new CRL extensions to V3 code and some new objects.
5339 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5340 disable standard block padding (aka PKCS#5 padding) in the EVP
5341 API, which was previously mandatory. This means that the data is
5342 not padded in any way and so the total length much be a multiple
5343 of the block size, otherwise an error occurs.
5346 *) Initial (incomplete) OCSP SSL support.
5349 *) New function OCSP_parse_url(). This splits up a URL into its host,
5350 port and path components: primarily to parse OCSP URLs. New -url
5351 option to ocsp utility.
5354 *) New nonce behavior. The return value of OCSP_check_nonce() now
5355 reflects the various checks performed. Applications can decide
5356 whether to tolerate certain situations such as an absent nonce
5357 in a response when one was present in a request: the ocsp application
5358 just prints out a warning. New function OCSP_add1_basic_nonce()
5359 this is to allow responders to include a nonce in a response even if
5360 the request is nonce-less.
5363 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5364 skipped when using openssl x509 multiple times on a single input file,
5365 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5368 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5369 set string type: to handle setting ASN1_TIME structures. Fix ca
5370 utility to correctly initialize revocation date of CRLs.
5373 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5374 the clients preferred ciphersuites and rather use its own preferences.
5375 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5376 Internet Explorer by ensuring unchanged hash method during stepup.
5377 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5380 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5381 to aes and add a new 'exist' option to print out symbols that don't
5385 *) Additional options to ocsp utility to allow flags to be set and
5386 additional certificates supplied.
5389 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5390 OCSP client a number of certificate to only verify the response
5394 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5395 handle the new API. Currently only ECB, CBC modes supported. Add new
5398 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5399 Encryption Standard (AES) Ciphersuites for Transport Layer
5400 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5401 not enabled by default and were not part of the "ALL" ciphersuite
5402 alias because they were not yet official; they could be
5403 explicitly requested by specifying the "AESdraft" ciphersuite
5404 group alias. In the final release of OpenSSL 0.9.7, the group
5405 alias is called "AES" and is part of "ALL".)
5406 [Ben Laurie, Steve Henson, Bodo Moeller]
5408 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5409 request to response.
5412 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5413 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5414 extract information from a certificate request. OCSP_response_create()
5415 creates a response and optionally adds a basic response structure.
5416 OCSP_basic_add1_status() adds a complete single response to a basic
5417 response and returns the OCSP_SINGLERESP structure just added (to allow
5418 extensions to be included for example). OCSP_basic_add1_cert() adds a
5419 certificate to a basic response and OCSP_basic_sign() signs a basic
5420 response with various flags. New helper functions ASN1_TIME_check()
5421 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5422 (converts ASN1_TIME to GeneralizedTime).
5425 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5426 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5427 structure from a certificate. X509_pubkey_digest() digests the public_key
5428 contents: this is used in various key identifiers.
5431 *) Make sk_sort() tolerate a NULL argument.
5432 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5434 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5435 passed by the function are trusted implicitly. If any of them signed the
5436 response then it is assumed to be valid and is not verified.
5439 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5440 to data. This was previously part of the PKCS7 ASN1 code. This
5441 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5442 [Steve Henson, reported by Kenneth R. Robinette
5443 <support@securenetterm.com>]
5445 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5446 routines: without these tracing memory leaks is very painful.
5447 Fix leaks in PKCS12 and PKCS7 routines.
5450 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5451 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5452 effectively meant GeneralizedTime would never be used. Now it
5453 is initialised to -1 but X509_time_adj() now has to check the value
5454 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5455 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5456 [Steve Henson, reported by Kenneth R. Robinette
5457 <support@securenetterm.com>]
5459 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5460 result in a zero length in the ASN1_INTEGER structure which was
5461 not consistent with the structure when d2i_ASN1_INTEGER() was used
5462 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5463 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5464 where it did not print out a minus for negative ASN1_INTEGER.
5467 *) Add summary printout to ocsp utility. The various functions which
5468 convert status values to strings have been renamed to:
5469 OCSP_response_status_str(), OCSP_cert_status_str() and
5470 OCSP_crl_reason_str() and are no longer static. New options
5471 to verify nonce values and to disable verification. OCSP response
5472 printout format cleaned up.
5475 *) Add additional OCSP certificate checks. These are those specified
5476 in RFC2560. This consists of two separate checks: the CA of the
5477 certificate being checked must either be the OCSP signer certificate
5478 or the issuer of the OCSP signer certificate. In the latter case the
5479 OCSP signer certificate must contain the OCSP signing extended key
5480 usage. This check is performed by attempting to match the OCSP
5481 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5482 in the OCSP_CERTID structures of the response.
5485 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5486 and related routines. This uses the standard OpenSSL certificate
5487 verify routines to perform initial checks (just CA validity) and
5488 to obtain the certificate chain. Then additional checks will be
5489 performed on the chain. Currently the root CA is checked to see
5490 if it is explicitly trusted for OCSP signing. This is used to set
5491 a root CA as a global signing root: that is any certificate that
5492 chains to that CA is an acceptable OCSP signing certificate.
5495 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5496 extensions from a separate configuration file.
5497 As when reading extensions from the main configuration file,
5498 the '-extensions ...' option may be used for specifying the
5500 [Massimiliano Pala <madwolf@comune.modena.it>]
5502 *) New OCSP utility. Allows OCSP requests to be generated or
5503 read. The request can be sent to a responder and the output
5504 parsed, outputed or printed in text form. Not complete yet:
5505 still needs to check the OCSP response validity.
5508 *) New subcommands for 'openssl ca':
5509 'openssl ca -status <serial>' prints the status of the cert with
5510 the given serial number (according to the index file).
5511 'openssl ca -updatedb' updates the expiry status of certificates
5513 [Massimiliano Pala <madwolf@comune.modena.it>]
5515 *) New '-newreq-nodes' command option to CA.pl. This is like
5516 '-newreq', but calls 'openssl req' with the '-nodes' option
5517 so that the resulting key is not encrypted.
5518 [Damien Miller <djm@mindrot.org>]
5520 *) New configuration for the GNU Hurd.
5521 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5523 *) Initial code to implement OCSP basic response verify. This
5524 is currently incomplete. Currently just finds the signer's
5525 certificate and verifies the signature on the response.
5528 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5529 value of OPENSSLDIR. This is available via the new '-d' option
5530 to 'openssl version', and is also included in 'openssl version -a'.
5533 *) Allowing defining memory allocation callbacks that will be given
5534 file name and line number information in additional arguments
5535 (a const char* and an int). The basic functionality remains, as
5536 well as the original possibility to just replace malloc(),
5537 realloc() and free() by functions that do not know about these
5538 additional arguments. To register and find out the current
5539 settings for extended allocation functions, the following
5540 functions are provided:
5542 CRYPTO_set_mem_ex_functions
5543 CRYPTO_set_locked_mem_ex_functions
5544 CRYPTO_get_mem_ex_functions
5545 CRYPTO_get_locked_mem_ex_functions
5547 These work the same way as CRYPTO_set_mem_functions and friends.
5548 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5549 extended allocation function is enabled.
5550 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5551 a conventional allocation function is enabled.
5552 [Richard Levitte, Bodo Moeller]
5554 *) Finish off removing the remaining LHASH function pointer casts.
5555 There should no longer be any prototype-casting required when using
5556 the LHASH abstraction, and any casts that remain are "bugs". See
5557 the callback types and macros at the head of lhash.h for details
5558 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5561 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5562 If /dev/[u]random devices are not available or do not return enough
5563 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5565 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5566 /etc/entropy will be queried once each in this sequence, quering stops
5567 when enough entropy was collected without querying more sockets.
5570 *) Change the Unix RAND_poll() variant to be able to poll several
5571 random devices, as specified by DEVRANDOM, until a sufficient amount
5572 of data has been collected. We spend at most 10 ms on each file
5573 (select timeout) and read in non-blocking mode. DEVRANDOM now
5574 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5575 (previously it was just the string "/dev/urandom"), so on typical
5576 platforms the 10 ms delay will never occur.
5577 Also separate out the Unix variant to its own file, rand_unix.c.
5578 For VMS, there's a currently-empty rand_vms.c.
5581 *) Move OCSP client related routines to ocsp_cl.c. These
5582 provide utility functions which an application needing
5583 to issue a request to an OCSP responder and analyse the
5584 response will typically need: as opposed to those which an
5585 OCSP responder itself would need which will be added later.
5587 OCSP_request_sign() signs an OCSP request with an API similar
5588 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5589 response. OCSP_response_get1_basic() extracts basic response
5590 from response. OCSP_resp_find_status(): finds and extracts status
5591 information from an OCSP_CERTID structure (which will be created
5592 when the request structure is built). These are built from lower
5593 level functions which work on OCSP_SINGLERESP structures but
5594 wont normally be used unless the application wishes to examine
5595 extensions in the OCSP response for example.
5597 Replace nonce routines with a pair of functions.
5598 OCSP_request_add1_nonce() adds a nonce value and optionally
5599 generates a random value. OCSP_check_nonce() checks the
5600 validity of the nonce in an OCSP response.
5603 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5604 This doesn't copy the supplied OCSP_CERTID and avoids the
5605 need to free up the newly created id. Change return type
5606 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5607 This can then be used to add extensions to the request.
5608 Deleted OCSP_request_new(), since most of its functionality
5609 is now in OCSP_REQUEST_new() (and the case insensitive name
5610 clash) apart from the ability to set the request name which
5611 will be added elsewhere.
5614 *) Update OCSP API. Remove obsolete extensions argument from
5615 various functions. Extensions are now handled using the new
5616 OCSP extension code. New simple OCSP HTTP function which
5617 can be used to send requests and parse the response.
5620 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5621 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5622 uses the special reorder version of SET OF to sort the attributes
5623 and reorder them to match the encoded order. This resolves a long
5624 standing problem: a verify on a PKCS7 structure just after signing
5625 it used to fail because the attribute order did not match the
5626 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5627 it uses the received order. This is necessary to tolerate some broken
5628 software that does not order SET OF. This is handled by encoding
5629 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5630 to produce the required SET OF.
5633 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5634 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5635 files to get correct declarations of the ASN.1 item variables.
5638 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5639 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5640 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5641 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5642 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5643 ASN1_ITEM and no wrapper functions.
5646 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5647 replace the old function pointer based I/O routines. Change most of
5648 the *_d2i_bio() and *_d2i_fp() functions to use these.
5651 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5652 lines, recognice more "algorithms" that can be deselected, and make
5653 it complain about algorithm deselection that isn't recognised.
5656 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5657 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5658 to use new functions. Add NO_ASN1_OLD which can be set to remove
5659 some old style ASN1 functions: this can be used to determine if old
5660 code will still work when these eventually go away.
5663 *) New extension functions for OCSP structures, these follow the
5664 same conventions as certificates and CRLs.
5667 *) New function X509V3_add1_i2d(). This automatically encodes and
5668 adds an extension. Its behaviour can be customised with various
5669 flags to append, replace or delete. Various wrappers added for
5670 certifcates and CRLs.
5673 *) Fix to avoid calling the underlying ASN1 print routine when
5674 an extension cannot be parsed. Correct a typo in the
5675 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5678 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5679 entries for variables.
5682 *) Add functionality to apps/openssl.c for detecting locking
5683 problems: As the program is single-threaded, all we have
5684 to do is register a locking callback using an array for
5685 storing which locks are currently held by the program.
5688 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5689 SSL_get_ex_data_X509_STORE_idx(), which is used in
5690 ssl_verify_cert_chain() and thus can be called at any time
5691 during TLS/SSL handshakes so that thread-safety is essential.
5692 Unfortunately, the ex_data design is not at all suited
5693 for multi-threaded use, so it probably should be abolished.
5696 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5697 [Broadcom, tweaked and integrated by Geoff Thorpe]
5699 *) Move common extension printing code to new function
5700 X509V3_print_extensions(). Reorganise OCSP print routines and
5701 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5704 *) New function X509_signature_print() to remove duplication in some
5708 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5709 set (this was treated exactly the same as SET OF previously). This
5710 is used to reorder the STACK representing the structure to match the
5711 encoding. This will be used to get round a problem where a PKCS7
5712 structure which was signed could not be verified because the STACK
5713 order did not reflect the encoded order.
5716 *) Reimplement the OCSP ASN1 module using the new code.
5719 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5720 for its ASN1 operations. The old style function pointers still exist
5721 for now but they will eventually go away.
5724 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5725 completely replaces the old ASN1 functionality with a table driven
5726 encoder and decoder which interprets an ASN1_ITEM structure describing
5727 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5728 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5729 has also been converted to the new form.
5732 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5733 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5734 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5735 for negative moduli.
5738 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5739 of not touching the result's sign bit.
5742 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5746 *) Changed the LHASH code to use prototypes for callbacks, and created
5747 macros to declare and implement thin (optionally static) functions
5748 that provide type-safety and avoid function pointer casting for the
5749 type-specific callbacks.
5752 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5754 [Veers Staats <staatsvr@asc.hpc.mil>,
5755 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5757 *) Reformat the FAQ so the different questions and answers can be divided
5758 in sections depending on the subject.
5761 *) Have the zlib compression code load ZLIB.DLL dynamically under
5765 *) New function BN_mod_sqrt for computing square roots modulo a prime
5766 (using the probabilistic Tonelli-Shanks algorithm unless
5767 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5768 be handled deterministically).
5769 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5771 *) Make BN_mod_inverse faster by explicitly handling small quotients
5772 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5773 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5776 *) New function BN_kronecker.
5779 *) Fix BN_gcd so that it works on negative inputs; the result is
5780 positive unless both parameters are zero.
5781 Previously something reasonably close to an infinite loop was
5782 possible because numbers could be growing instead of shrinking
5783 in the implementation of Euclid's algorithm.
5786 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5787 sign of the number in question.
5789 Fix BN_is_word(a,w) to work correctly for w == 0.
5791 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5792 because its test if the absolute value of 'a' equals 'w'.
5793 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5794 it exists mostly for use in the implementations of BN_is_zero(),
5795 BN_is_one(), and BN_is_word().
5798 *) New function BN_swap.
5801 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5802 the exponentiation functions are more likely to produce reasonable
5803 results on negative inputs.
5806 *) Change BN_mod_mul so that the result is always non-negative.
5807 Previously, it could be negative if one of the factors was negative;
5808 I don't think anyone really wanted that behaviour.
5811 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5812 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5813 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5814 and add new functions:
5823 BN_mod_lshift1_quick
5827 These functions always generate non-negative results.
5829 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5830 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5832 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5833 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5834 be reduced modulo m.
5835 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5838 The following entry accidentily appeared in the CHANGES file
5839 distributed with OpenSSL 0.9.7. The modifications described in
5840 it do *not* apply to OpenSSL 0.9.7.
5842 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5843 was actually never needed) and in BN_mul(). The removal in BN_mul()
5844 required a small change in bn_mul_part_recursive() and the addition
5845 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5846 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5847 bn_sub_words() and bn_add_words() except they take arrays with
5852 *) In 'openssl passwd', verify passwords read from the terminal
5853 unless the '-salt' option is used (which usually means that
5854 verification would just waste user's time since the resulting
5855 hash is going to be compared with some given password hash)
5856 or the new '-noverify' option is used.
5858 This is an incompatible change, but it does not affect
5859 non-interactive use of 'openssl passwd' (passwords on the command
5860 line, '-stdin' option, '-in ...' option) and thus should not
5864 *) Remove all references to RSAref, since there's no more need for it.
5867 *) Make DSO load along a path given through an environment variable
5868 (SHLIB_PATH) with shl_load().
5871 *) Constify the ENGINE code as a result of BIGNUM constification.
5872 Also constify the RSA code and most things related to it. In a
5873 few places, most notable in the depth of the ASN.1 code, ugly
5874 casts back to non-const were required (to be solved at a later
5878 *) Make it so the openssl application has all engines loaded by default.
5881 *) Constify the BIGNUM routines a little more.
5884 *) Add the following functions:
5886 ENGINE_load_cswift()
5888 ENGINE_load_atalla()
5890 ENGINE_load_builtin_engines()
5892 That way, an application can itself choose if external engines that
5893 are built-in in OpenSSL shall ever be used or not. The benefit is
5894 that applications won't have to be linked with libdl or other dso
5895 libraries unless it's really needed.
5897 Changed 'openssl engine' to load all engines on demand.
5898 Changed the engine header files to avoid the duplication of some
5899 declarations (they differed!).
5902 *) 'openssl engine' can now list capabilities.
5905 *) Better error reporting in 'openssl engine'.
5908 *) Never call load_dh_param(NULL) in s_server.
5911 *) Add engine application. It can currently list engines by name and
5912 identity, and test if they are actually available.
5915 *) Improve RPM specification file by forcing symbolic linking and making
5916 sure the installed documentation is also owned by root.root.
5917 [Damien Miller <djm@mindrot.org>]
5919 *) Give the OpenSSL applications more possibilities to make use of
5920 keys (public as well as private) handled by engines.
5923 *) Add OCSP code that comes from CertCo.
5926 *) Add VMS support for the Rijndael code.
5929 *) Added untested support for Nuron crypto accelerator.
5932 *) Add support for external cryptographic devices. This code was
5933 previously distributed separately as the "engine" branch.
5934 [Geoff Thorpe, Richard Levitte]
5936 *) Rework the filename-translation in the DSO code. It is now possible to
5937 have far greater control over how a "name" is turned into a filename
5938 depending on the operating environment and any oddities about the
5939 different shared library filenames on each system.
5942 *) Support threads on FreeBSD-elf in Configure.
5945 *) Fix for SHA1 assembly problem with MASM: it produces
5946 warnings about corrupt line number information when assembling
5947 with debugging information. This is caused by the overlapping
5949 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5952 NCONF_get_number() has no error checking at all. As a replacement,
5953 NCONF_get_number_e() is defined (_e for "error checking") and is
5954 promoted strongly. The old NCONF_get_number is kept around for
5955 binary backward compatibility.
5956 Make it possible for methods to load from something other than a BIO,
5957 by providing a function pointer that is given a name instead of a BIO.
5958 For example, this could be used to load configuration data from an
5962 *) Fix for non blocking accept BIOs. Added new I/O special reason
5963 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5964 with non blocking I/O was not possible because no retry code was
5965 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5969 *) Added the beginnings of Rijndael support.
5972 *) Fix for bug in DirectoryString mask setting. Add support for
5973 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5974 to allow certificate printing to more controllable, additional
5975 'certopt' option to 'x509' to allow new printing options to be
5979 *) Clean old EAY MD5 hack from e_os.h.
5982 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5984 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5985 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5986 [Joe Orton, Steve Henson]
5988 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5990 *) Fix additional bug revealed by the NISCC test suite:
5992 Stop bug triggering large recursion when presented with
5993 certain ASN.1 tags (CVE-2003-0851)
5996 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5998 *) Fix various bugs revealed by running the NISCC test suite:
6000 Stop out of bounds reads in the ASN1 code when presented with
6001 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6003 If verify callback ignores invalid public key errors don't try to check
6004 certificate signature with the NULL public key.
6008 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6009 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6013 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6014 extra data after the compression methods not only for TLS 1.0
6015 but also for SSL 3.0 (as required by the specification).
6016 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6018 *) Change X509_certificate_type() to mark the key as exported/exportable
6019 when it's 512 *bits* long, not 512 bytes.
6022 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6024 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6025 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6026 a protocol version number mismatch like a decryption error
6027 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6030 *) Turn on RSA blinding by default in the default implementation
6031 to avoid a timing attack. Applications that don't want it can call
6032 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6033 They would be ill-advised to do so in most cases.
6034 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6036 *) Change RSA blinding code so that it works when the PRNG is not
6037 seeded (in this case, the secret RSA exponent is abused as
6038 an unpredictable seed -- if it is not unpredictable, there
6039 is no point in blinding anyway). Make RSA blinding thread-safe
6040 by remembering the creator's thread ID in rsa->blinding and
6041 having all other threads use local one-time blinding factors
6042 (this requires more computation than sharing rsa->blinding, but
6043 avoids excessive locking; and if an RSA object is not shared
6044 between threads, blinding will still be very fast).
6047 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6049 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6050 via timing by performing a MAC computation even if incorrrect
6051 block cipher padding has been found. This is a countermeasure
6052 against active attacks where the attacker has to distinguish
6053 between bad padding and a MAC verification error. (CVE-2003-0078)
6055 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6056 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6057 Martin Vuagnoux (EPFL, Ilion)]
6059 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6061 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6062 memory from it's contents. This is done with a counter that will
6063 place alternating values in each byte. This can be used to solve
6064 two issues: 1) the removal of calls to memset() by highly optimizing
6065 compilers, and 2) cleansing with other values than 0, since those can
6066 be read through on certain media, for example a swap space on disk.
6069 *) Bugfix: client side session caching did not work with external caching,
6070 because the session->cipher setting was not restored when reloading
6071 from the external cache. This problem was masked, when
6072 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6073 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6076 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6077 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6078 [Zeev Lieber <zeev-l@yahoo.com>]
6080 *) Undo an undocumented change introduced in 0.9.6e which caused
6081 repeated calls to OpenSSL_add_all_ciphers() and
6082 OpenSSL_add_all_digests() to be ignored, even after calling
6086 *) Change the default configuration reader to deal with last line not
6087 being properly terminated.
6090 *) Change X509_NAME_cmp() so it applies the special rules on handling
6091 DN values that are of type PrintableString, as well as RDNs of type
6092 emailAddress where the value has the type ia5String.
6093 [stefank@valicert.com via Richard Levitte]
6095 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6096 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6097 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6098 the bitwise-OR of the two for use by the majority of applications
6099 wanting this behaviour, and update the docs. The documented
6100 behaviour and actual behaviour were inconsistent and had been
6101 changing anyway, so this is more a bug-fix than a behavioural
6103 [Geoff Thorpe, diagnosed by Nadav Har'El]
6105 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6106 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6109 *) Fix initialization code race conditions in
6110 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6111 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6112 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6113 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6114 ssl2_get_cipher_by_char(),
6115 ssl3_get_cipher_by_char().
6116 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6118 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6119 the cached sessions are flushed, as the remove_cb() might use ex_data
6120 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6121 (see [openssl.org #212]).
6122 [Geoff Thorpe, Lutz Jaenicke]
6124 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6125 length, instead of the encoding length to d2i_ASN1_OBJECT.
6128 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6130 *) [In 0.9.6g-engine release:]
6131 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6132 [Lynn Gazis <lgazis@rainbow.com>]
6134 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6136 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6137 and get fix the header length calculation.
6138 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6139 Alon Kantor <alonk@checkpoint.com> (and others),
6142 *) Use proper error handling instead of 'assertions' in buffer
6143 overflow checks added in 0.9.6e. This prevents DoS (the
6144 assertions could call abort()).
6145 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6147 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6149 *) Add various sanity checks to asn1_get_length() to reject
6150 the ASN1 length bytes if they exceed sizeof(long), will appear
6151 negative or the content length exceeds the length of the
6153 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6155 *) Fix cipher selection routines: ciphers without encryption had no flags
6156 for the cipher strength set and where therefore not handled correctly
6157 by the selection routines (PR #130).
6160 *) Fix EVP_dsa_sha macro.
6164 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6165 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6166 that was added in OpenSSL 0.9.6d.
6168 As the countermeasure turned out to be incompatible with some
6169 broken SSL implementations, the new option is part of SSL_OP_ALL.
6170 SSL_OP_ALL is usually employed when compatibility with weird SSL
6171 implementations is desired (e.g. '-bugs' option to 's_client' and
6172 's_server'), so the new option is automatically set in many
6176 *) Changes in security patch:
6178 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6179 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6180 Air Force Materiel Command, USAF, under agreement number
6183 *) Add various sanity checks to asn1_get_length() to reject
6184 the ASN1 length bytes if they exceed sizeof(long), will appear
6185 negative or the content length exceeds the length of the
6186 supplied buffer. (CVE-2002-0659)
6187 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6189 *) Assertions for various potential buffer overflows, not known to
6191 [Ben Laurie (CHATS)]
6193 *) Various temporary buffers to hold ASCII versions of integers were
6194 too small for 64 bit platforms. (CVE-2002-0655)
6195 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6197 *) Remote buffer overflow in SSL3 protocol - an attacker could
6198 supply an oversized session ID to a client. (CVE-2002-0656)
6199 [Ben Laurie (CHATS)]
6201 *) Remote buffer overflow in SSL2 protocol - an attacker could
6202 supply an oversized client master key. (CVE-2002-0656)
6203 [Ben Laurie (CHATS)]
6205 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6207 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6208 encoded as NULL) with id-dsa-with-sha1.
6209 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6211 *) Check various X509_...() return values in apps/req.c.
6212 [Nils Larsch <nla@trustcenter.de>]
6214 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6215 an end-of-file condition would erronously be flagged, when the CRLF
6216 was just at the end of a processed block. The bug was discovered when
6217 processing data through a buffering memory BIO handing the data to a
6218 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6219 <ptsekov@syntrex.com> and Nedelcho Stanev.
6222 *) Implement a countermeasure against a vulnerability recently found
6223 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6224 before application data chunks to avoid the use of known IVs
6225 with data potentially chosen by the attacker.
6228 *) Fix length checks in ssl3_get_client_hello().
6231 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6232 to prevent ssl3_read_internal() from incorrectly assuming that
6233 ssl3_read_bytes() found application data while handshake
6234 processing was enabled when in fact s->s3->in_read_app_data was
6235 merely automatically cleared during the initial handshake.
6236 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6238 *) Fix object definitions for Private and Enterprise: they were not
6239 recognized in their shortname (=lowercase) representation. Extend
6240 obj_dat.pl to issue an error when using undefined keywords instead
6241 of silently ignoring the problem (Svenning Sorensen
6242 <sss@sss.dnsalias.net>).
6245 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6246 generators, i.e. generators other than 2 and 5. (Previously, the
6247 code did not properly initialise the 'add' and 'rem' values to
6248 BN_generate_prime().)
6250 In the new general case, we do not insist that 'generator' is
6251 actually a primitive root: This requirement is rather pointless;
6252 a generator of the order-q subgroup is just as good, if not
6256 *) Map new X509 verification errors to alerts. Discovered and submitted by
6257 Tom Wu <tom@arcot.com>.
6260 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6261 returning non-zero before the data has been completely received
6262 when using non-blocking I/O.
6263 [Bodo Moeller; problem pointed out by John Hughes]
6265 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6266 [Ben Laurie, Lutz Jaenicke]
6268 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6269 Yoram Zahavi <YoramZ@gilian.com>).
6272 *) Add information about CygWin 1.3 and on, and preserve proper
6273 configuration for the versions before that.
6274 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6276 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6277 check whether we deal with a copy of a session and do not delete from
6278 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6279 <izhar@checkpoint.com>.
6282 *) Do not store session data into the internal session cache, if it
6283 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6284 flag is set). Proposed by Aslam <aslam@funk.com>.
6287 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6291 *) [In 0.9.6d-engine release:]
6292 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6293 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6295 *) Add the configuration target linux-s390x.
6296 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6298 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6299 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6300 variable as an indication that a ClientHello message has been
6301 received. As the flag value will be lost between multiple
6302 invocations of ssl3_accept when using non-blocking I/O, the
6303 function may not be aware that a handshake has actually taken
6304 place, thus preventing a new session from being added to the
6307 To avoid this problem, we now set s->new_session to 2 instead of
6308 using a local variable.
6309 [Lutz Jaenicke, Bodo Moeller]
6311 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6312 if the SSL_R_LENGTH_MISMATCH error is detected.
6313 [Geoff Thorpe, Bodo Moeller]
6315 *) New 'shared_ldflag' column in Configure platform table.
6318 *) Fix EVP_CIPHER_mode macro.
6319 ["Dan S. Camper" <dan@bti.net>]
6321 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6322 type, we must throw them away by setting rr->length to 0.
6323 [D P Chang <dpc@qualys.com>]
6325 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6327 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6328 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6329 worked incorrectly for those cases where range = 10..._2 and
6330 3*range is two bits longer than range.)
6333 *) Only add signing time to PKCS7 structures if it is not already
6337 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6338 OBJ_ld_ce should be OBJ_id_ce.
6339 Also some ip-pda OIDs in crypto/objects/objects.txt were
6340 incorrect (cf. RFC 3039).
6341 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6343 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6344 returns early because it has nothing to do.
6345 [Andy Schneider <andy.schneider@bjss.co.uk>]
6347 *) [In 0.9.6c-engine release:]
6348 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6349 [Andy Schneider <andy.schneider@bjss.co.uk>]
6351 *) [In 0.9.6c-engine release:]
6352 Add support for Cryptographic Appliance's keyserver technology.
6353 (Use engine 'keyclient')
6354 [Cryptographic Appliances and Geoff Thorpe]
6356 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6357 is called via tools/c89.sh because arguments have to be
6358 rearranged (all '-L' options must appear before the first object
6360 [Richard Shapiro <rshapiro@abinitio.com>]
6362 *) [In 0.9.6c-engine release:]
6363 Add support for Broadcom crypto accelerator cards, backported
6365 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6367 *) [In 0.9.6c-engine release:]
6368 Add support for SureWare crypto accelerator cards from
6369 Baltimore Technologies. (Use engine 'sureware')
6370 [Baltimore Technologies and Mark Cox]
6372 *) [In 0.9.6c-engine release:]
6373 Add support for crypto accelerator cards from Accelerated
6374 Encryption Processing, www.aep.ie. (Use engine 'aep')
6375 [AEP Inc. and Mark Cox]
6377 *) Add a configuration entry for gcc on UnixWare.
6378 [Gary Benson <gbenson@redhat.com>]
6380 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6381 messages are stored in a single piece (fixed-length part and
6382 variable-length part combined) and fix various bugs found on the way.
6385 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6386 instead. BIO_gethostbyname() does not know what timeouts are
6387 appropriate, so entries would stay in cache even when they have
6389 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6391 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6392 faced with a pathologically small ClientHello fragment that does
6393 not contain client_version: Instead of aborting with an error,
6394 simply choose the highest available protocol version (i.e.,
6395 TLS 1.0 unless it is disabled). In practice, ClientHello
6396 messages are never sent like this, but this change gives us
6397 strictly correct behaviour at least for TLS.
6400 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6401 never resets s->method to s->ctx->method when called from within
6402 one of the SSL handshake functions.
6403 [Bodo Moeller; problem pointed out by Niko Baric]
6405 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6406 (sent using the client's version number) if client_version is
6407 smaller than the protocol version in use. Also change
6408 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6409 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6410 the client will at least see that alert.
6413 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6417 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6418 client receives HelloRequest while in a handshake.
6419 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6421 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6422 should end in 'break', not 'goto end' which circuments various
6423 cleanups done in state SSL_ST_OK. But session related stuff
6424 must be disabled for SSL_ST_OK in the case that we just sent a
6427 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6428 before just sending a HelloRequest.
6429 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6431 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6432 reveal whether illegal block cipher padding was found or a MAC
6433 verification error occured. (Neither SSLerr() codes nor alerts
6434 are directly visible to potential attackers, but the information
6435 may leak via logfiles.)
6437 Similar changes are not required for the SSL 2.0 implementation
6438 because the number of padding bytes is sent in clear for SSL 2.0,
6439 and the extra bytes are just ignored. However ssl/s2_pkt.c
6440 failed to verify that the purported number of padding bytes is in
6444 *) Add OpenUNIX-8 support including shared libraries
6445 (Boyd Lynn Gerber <gerberb@zenez.com>).
6448 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6449 'wristwatch attack' using huge encoding parameters (cf.
6450 James H. Manger's CRYPTO 2001 paper). Note that the
6451 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6452 encoding parameters and hence was not vulnerable.
6455 *) BN_sqr() bug fix.
6456 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6458 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6459 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6460 followed by modular reduction.
6461 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6463 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6464 equivalent based on BN_pseudo_rand() instead of BN_rand().
6467 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6468 This function was broken, as the check for a new client hello message
6469 to handle SGC did not allow these large messages.
6470 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6473 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6476 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6477 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6480 *) Rework the configuration and shared library support for Tru64 Unix.
6481 The configuration part makes use of modern compiler features and
6482 still retains old compiler behavior for those that run older versions
6483 of the OS. The shared library support part includes a variant that
6484 uses the RPATH feature, and is available through the special
6485 configuration target "alpha-cc-rpath", which will never be selected
6487 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6489 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6490 with the same message size as in ssl3_get_certificate_request().
6491 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6492 messages might inadvertently be reject as too long.
6493 [Petr Lampa <lampa@fee.vutbr.cz>]
6495 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6498 *) Modified SSL library such that the verify_callback that has been set
6499 specificly for an SSL object with SSL_set_verify() is actually being
6500 used. Before the change, a verify_callback set with this function was
6501 ignored and the verify_callback() set in the SSL_CTX at the time of
6502 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6503 to allow the necessary settings.
6506 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6507 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6508 done automatically (in contradiction to the requirements of the C
6509 standard). This made problems when used from OpenSSH.
6512 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6513 dh->length and always used
6515 BN_rand_range(priv_key, dh->p).
6517 BN_rand_range() is not necessary for Diffie-Hellman, and this
6518 specific range makes Diffie-Hellman unnecessarily inefficient if
6519 dh->length (recommended exponent length) is much smaller than the
6520 length of dh->p. We could use BN_rand_range() if the order of
6521 the subgroup was stored in the DH structure, but we only have
6526 BN_rand(priv_key, l, ...)
6528 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6534 RSA_eay_public_encrypt
6535 RSA_eay_private_decrypt
6536 RSA_eay_private_encrypt (signing)
6537 RSA_eay_public_decrypt (signature verification)
6539 (default implementations for RSA_public_encrypt,
6540 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6541 always reject numbers >= n.
6544 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6545 to synchronize access to 'locking_thread'. This is necessary on
6546 systems where access to 'locking_thread' (an 'unsigned long'
6547 variable) is not atomic.
6550 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6551 *before* setting the 'crypto_lock_rand' flag. The previous code had
6552 a race condition if 0 is a valid thread ID.
6553 [Travis Vitek <vitek@roguewave.com>]
6555 *) Add support for shared libraries under Irix.
6556 [Albert Chin-A-Young <china@thewrittenword.com>]
6558 *) Add configuration option to build on Linux on both big-endian and
6560 [Ralf Baechle <ralf@uni-koblenz.de>]
6562 *) Add the possibility to create shared libraries on HP-UX.
6565 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6567 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6568 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6569 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6570 PRNG state recovery was possible based on the output of
6571 one PRNG request appropriately sized to gain knowledge on
6572 'md' followed by enough consecutive 1-byte PRNG requests
6573 to traverse all of 'state'.
6575 1. When updating 'md_local' (the current thread's copy of 'md')
6576 during PRNG output generation, hash all of the previous
6577 'md_local' value, not just the half used for PRNG output.
6579 2. Make the number of bytes from 'state' included into the hash
6580 independent from the number of PRNG bytes requested.
6582 The first measure alone would be sufficient to avoid
6583 Markku-Juhani's attack. (Actually it had never occurred
6584 to me that the half of 'md_local' used for chaining was the
6585 half from which PRNG output bytes were taken -- I had always
6586 assumed that the secret half would be used.) The second
6587 measure makes sure that additional data from 'state' is never
6588 mixed into 'md_local' in small portions; this heuristically
6589 further strengthens the PRNG.
6592 *) Fix crypto/bn/asm/mips3.s.
6595 *) When only the key is given to "enc", the IV is undefined. Print out
6596 an error message in this case.
6599 *) Handle special case when X509_NAME is empty in X509 printing routines.
6602 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6603 positive and less than q.
6606 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6607 used: it isn't thread safe and the add_lock_callback should handle
6609 [Paul Rose <Paul.Rose@bridge.com>]
6611 *) Verify that incoming data obeys the block size in
6612 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6616 [Ulf Möller, Bodo Möller]
6618 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6619 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6620 when fixing the server behaviour for backwards-compatible 'client
6621 hello' messages. (Note that the attack is impractical against
6622 SSL 3.0 and TLS 1.0 anyway because length and version checking
6623 means that the probability of guessing a valid ciphertext is
6624 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6627 Before 0.9.5, the countermeasure (hide the error by generating a
6628 random 'decryption result') did not work properly because
6629 ERR_clear_error() was missing, meaning that SSL_get_error() would
6630 detect the supposedly ignored error.
6632 Both problems are now fixed.
6635 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6636 (previously it was 1024).
6639 *) Fix for compatibility mode trust settings: ignore trust settings
6640 unless some valid trust or reject settings are present.
6643 *) Fix for blowfish EVP: its a variable length cipher.
6646 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6647 parameters in DSA public key structures and return an error in the
6648 DSA routines if parameters are absent.
6651 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6652 in the current directory if neither $RANDFILE nor $HOME was set.
6653 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6654 caused some confusion to Windows users who haven't defined $HOME.
6655 Thus RAND_file_name() is changed again: e_os.h can define a
6656 DEFAULT_HOME, which will be used if $HOME is not set.
6657 For Windows, we use "C:"; on other platforms, we still require
6658 environment variables.
6660 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6661 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6662 having multiple threads call RAND_poll() concurrently.
6665 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6666 combination of a flag and a thread ID variable.
6667 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6668 flag), *other* threads can enter ssleay_add_bytes without obeying
6669 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6670 that they do not hold after the first thread unsets add_do_not_lock).
6673 *) Change bctest again: '-x' expressions are not available in all
6677 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6679 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6680 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6682 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6683 the default extension for executables, if any. Also, make the perl
6684 scripts that use symlink() to test if it really exists and use "cp"
6685 if it doesn't. All this made OpenSSL compilable and installable in
6689 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6690 If SEQUENCE is length is indefinite just set c->slen to the total
6691 amount of data available.
6692 [Steve Henson, reported by shige@FreeBSD.org]
6693 [This change does not apply to 0.9.7.]
6695 *) Change bctest to avoid here-documents inside command substitution
6696 (workaround for FreeBSD /bin/sh bug).
6697 For compatibility with Ultrix, avoid shell functions (introduced
6698 in the bctest version that searches along $PATH).
6701 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6702 with des_encrypt() defined on some operating systems, like Solaris
6706 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6707 On the Importance of Eliminating Errors in Cryptographic
6708 Computations, J. Cryptology 14 (2001) 2, 101-119,
6709 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6712 *) MIPS assembler BIGNUM division bug fix.
6715 *) Disabled incorrect Alpha assembler code.
6718 *) Fix PKCS#7 decode routines so they correctly update the length
6719 after reading an EOC for the EXPLICIT tag.
6721 [This change does not apply to 0.9.7.]
6723 *) Fix bug in PKCS#12 key generation routines. This was triggered
6724 if a 3DES key was generated with a 0 initial byte. Include
6725 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6726 (but broken) behaviour.
6729 *) Enhance bctest to search for a working bc along $PATH and print
6731 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6733 *) Fix memory leaks in err.c: free err_data string if necessary;
6734 don't write to the wrong index in ERR_set_error_data.
6737 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6741 *) Replace rdtsc with _emit statements for VC++ version 5.
6742 [Jeremy Cooper <jeremy@baymoo.org>]
6744 *) Make it possible to reuse SSLv2 sessions.
6747 *) In copy_email() check for >= 0 as a return value for
6748 X509_NAME_get_index_by_NID() since 0 is a valid index.
6749 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6751 *) Avoid coredump with unsupported or invalid public keys by checking if
6752 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6753 PKCS7_verify() fails with non detached data.
6756 *) Don't use getenv in library functions when run as setuid/setgid.
6757 New function OPENSSL_issetugid().
6760 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6761 due to incorrect handling of multi-threading:
6763 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6765 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6767 3. Count how many times MemCheck_off() has been called so that
6768 nested use can be treated correctly. This also avoids
6769 inband-signalling in the previous code (which relied on the
6770 assumption that thread ID 0 is impossible).
6773 *) Add "-rand" option also to s_client and s_server.
6776 *) Fix CPU detection on Irix 6.x.
6777 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6778 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6780 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6783 [This change does not apply to 0.9.7.]
6785 *) Use the cached encoding of an X509_NAME structure rather than
6786 copying it. This is apparently the reason for the libsafe "errors"
6787 but the code is actually correct.
6790 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6791 Bleichenbacher's DSA attack.
6792 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6793 to be set and top=0 forces the highest bit to be set; top=-1 is new
6794 and leaves the highest bit random.
6795 [Ulf Moeller, Bodo Moeller]
6797 *) In the NCONF_...-based implementations for CONF_... queries
6798 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6799 a temporary CONF structure with the data component set to NULL
6800 (which gives segmentation faults in lh_retrieve).
6801 Instead, use NULL for the CONF pointer in CONF_get_string and
6802 CONF_get_number (which may use environment variables) and directly
6803 return NULL from CONF_get_section.
6806 *) Fix potential buffer overrun for EBCDIC.
6809 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6810 keyUsage if basicConstraints absent for a CA.
6813 *) Make SMIME_write_PKCS7() write mail header values with a format that
6814 is more generally accepted (no spaces before the semicolon), since
6815 some programs can't parse those values properly otherwise. Also make
6816 sure BIO's that break lines after each write do not create invalid
6820 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6821 macros previously used would not encode an empty SEQUENCE OF
6822 and break the signature.
6824 [This change does not apply to 0.9.7.]
6826 *) Zero the premaster secret after deriving the master secret in
6830 *) Add some EVP_add_digest_alias registrations (as found in
6831 OpenSSL_add_all_digests()) to SSL_library_init()
6832 aka OpenSSL_add_ssl_algorithms(). This provides improved
6833 compatibility with peers using X.509 certificates
6834 with unconventional AlgorithmIdentifier OIDs.
6837 *) Fix for Irix with NO_ASM.
6838 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6840 *) ./config script fixes.
6841 [Ulf Moeller, Richard Levitte]
6843 *) Fix 'openssl passwd -1'.
6846 *) Change PKCS12_key_gen_asc() so it can cope with non null
6847 terminated strings whose length is passed in the passlen
6848 parameter, for example from PEM callbacks. This was done
6849 by adding an extra length parameter to asc2uni().
6850 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6852 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6853 call failed, free the DSA structure.
6856 *) Fix to uni2asc() to cope with zero length Unicode strings.
6857 These are present in some PKCS#12 files.
6860 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6861 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6862 when writing a 32767 byte record.
6863 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6865 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6866 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6868 (RSA objects have a reference count access to which is protected
6869 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6870 so they are meant to be shared between threads.)
6871 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6872 "Reddie, Steven" <Steven.Reddie@ca.com>]
6874 *) Fix a deadlock in CRYPTO_mem_leaks().
6877 *) Use better test patterns in bntest.
6880 *) rand_win.c fix for Borland C.
6883 *) BN_rshift bugfix for n == 0.
6886 *) Add a 'bctest' script that checks for some known 'bc' bugs
6887 so that 'make test' does not abort just because 'bc' is broken.
6890 *) Store verify_result within SSL_SESSION also for client side to
6891 avoid potential security hole. (Re-used sessions on the client side
6892 always resulted in verify_result==X509_V_OK, not using the original
6893 result of the server certificate verification.)
6896 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6897 SSL3_RT_APPLICATION_DATA, return 0.
6898 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6902 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6903 releases, have been re-implemented by renaming the previous
6904 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6905 and ssl3_read_internal, respectively, and adding 'peek' parameters
6906 to them. The new ssl[23]_{read,peek} functions are calls to
6907 ssl[23]_read_internal with the 'peek' flag set appropriately.
6908 A 'peek' parameter has also been added to ssl3_read_bytes, which
6909 does the actual work for ssl3_read_internal.
6912 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6913 the method-specific "init()" handler. Also clean up ex_data after
6914 calling the method-specific "finish()" handler. Previously, this was
6915 happening the other way round.
6918 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6919 The previous value, 12, was not always sufficient for BN_mod_exp().
6922 *) Make sure that shared libraries get the internal name engine with
6923 the full version number and not just 0. This should mark the
6924 shared libraries as not backward compatible. Of course, this should
6925 be changed again when we can guarantee backward binary compatibility.
6928 *) Fix typo in get_cert_by_subject() in by_dir.c
6929 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6931 *) Rework the system to generate shared libraries:
6933 - Make note of the expected extension for the shared libraries and
6934 if there is a need for symbolic links from for example libcrypto.so.0
6935 to libcrypto.so.0.9.7. There is extended info in Configure for
6938 - Make as few rebuilds of the shared libraries as possible.
6940 - Still avoid linking the OpenSSL programs with the shared libraries.
6942 - When installing, install the shared libraries separately from the
6946 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6948 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6949 and not in SSL_clear because the latter is also used by the
6950 accept/connect functions; previously, the settings made by
6951 SSL_set_read_ahead would be lost during the handshake.
6952 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6954 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6955 Previously, it would create entries for disableed algorithms no
6959 *) Added several new manual pages for SSL_* function.
6962 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6964 *) In ssl23_get_client_hello, generate an error message when faced
6965 with an initial SSL 3.0/TLS record that is too small to contain the
6966 first two bytes of the ClientHello message, i.e. client_version.
6967 (Note that this is a pathologic case that probably has never happened
6968 in real life.) The previous approach was to use the version number
6969 from the record header as a substitute; but our protocol choice
6970 should not depend on that one because it is not authenticated
6971 by the Finished messages.
6974 *) More robust randomness gathering functions for Windows.
6975 [Jeffrey Altman <jaltman@columbia.edu>]
6977 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6978 not set then we don't setup the error code for issuer check errors
6979 to avoid possibly overwriting other errors which the callback does
6980 handle. If an application does set the flag then we assume it knows
6981 what it is doing and can handle the new informational codes
6985 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6986 a general "ANY" type, as such it should be able to decode anything
6987 including tagged types. However it didn't check the class so it would
6988 wrongly interpret tagged types in the same way as their universal
6989 counterpart and unknown types were just rejected. Changed so that the
6990 tagged and unknown types are handled in the same way as a SEQUENCE:
6991 that is the encoding is stored intact. There is also a new type
6992 "V_ASN1_OTHER" which is used when the class is not universal, in this
6993 case we have no idea what the actual type is so we just lump them all
6997 *) On VMS, stdout may very well lead to a file that is written to
6998 in a record-oriented fashion. That means that every write() will
6999 write a separate record, which will be read separately by the
7000 programs trying to read from it. This can be very confusing.
7002 The solution is to put a BIO filter in the way that will buffer
7003 text until a linefeed is reached, and then write everything a
7004 line at a time, so every record written will be an actual line,
7005 not chunks of lines and not (usually doesn't happen, but I've
7006 seen it once) several lines in one record. BIO_f_linebuffer() is
7009 Currently, it's a VMS-only method, because that's where it has
7010 been tested well enough.
7013 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7014 it can return incorrect results.
7015 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7016 but it was in 0.9.6-beta[12].)
7019 *) Disable the check for content being present when verifying detached
7020 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7021 include zero length content when signing messages.
7024 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7025 BIO_ctrl (for BIO pairs).
7028 *) Add DSO method for VMS.
7031 *) Bug fix: Montgomery multiplication could produce results with the
7035 *) Add RPM specification openssl.spec and modify it to build three
7036 packages. The default package contains applications, application
7037 documentation and run-time libraries. The devel package contains
7038 include files, static libraries and function documentation. The
7039 doc package contains the contents of the doc directory. The original
7040 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7043 *) Add a large number of documentation files for many SSL routines.
7044 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7046 *) Add a configuration entry for Sony News 4.
7047 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7049 *) Don't set the two most significant bits to one when generating a
7050 random number < q in the DSA library.
7053 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7054 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7055 the underlying transport is blocking) if a handshake took place.
7056 (The default behaviour is needed by applications such as s_client
7057 and s_server that use select() to determine when to use SSL_read;
7058 but for applications that know in advance when to expect data, it
7059 just makes things more complicated.)
7062 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7066 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7067 work better on such systems.
7068 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7070 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7071 Update PKCS12_parse() so it copies the friendlyName and the
7072 keyid to the certificates aux info.
7075 *) Fix bug in PKCS7_verify() which caused an infinite loop
7076 if there was more than one signature.
7077 [Sven Uszpelkat <su@celocom.de>]
7079 *) Major change in util/mkdef.pl to include extra information
7080 about each symbol, as well as presentig variables as well
7081 as functions. This change means that there's n more need
7082 to rebuild the .num files when some algorithms are excluded.
7085 *) Allow the verify time to be set by an application,
7086 rather than always using the current time.
7089 *) Phase 2 verify code reorganisation. The certificate
7090 verify code now looks up an issuer certificate by a
7091 number of criteria: subject name, authority key id
7092 and key usage. It also verifies self signed certificates
7093 by the same criteria. The main comparison function is
7094 X509_check_issued() which performs these checks.
7096 Lot of changes were necessary in order to support this
7097 without completely rewriting the lookup code.
7099 Authority and subject key identifier are now cached.
7101 The LHASH 'certs' is X509_STORE has now been replaced
7102 by a STACK_OF(X509_OBJECT). This is mainly because an
7103 LHASH can't store or retrieve multiple objects with
7104 the same hash value.
7106 As a result various functions (which were all internal
7107 use only) have changed to handle the new X509_STORE
7108 structure. This will break anything that messed round
7109 with X509_STORE internally.
7111 The functions X509_STORE_add_cert() now checks for an
7112 exact match, rather than just subject name.
7114 The X509_STORE API doesn't directly support the retrieval
7115 of multiple certificates matching a given criteria, however
7116 this can be worked round by performing a lookup first
7117 (which will fill the cache with candidate certificates)
7118 and then examining the cache for matches. This is probably
7119 the best we can do without throwing out X509_LOOKUP
7120 entirely (maybe later...).
7122 The X509_VERIFY_CTX structure has been enhanced considerably.
7124 All certificate lookup operations now go via a get_issuer()
7125 callback. Although this currently uses an X509_STORE it
7126 can be replaced by custom lookups. This is a simple way
7127 to bypass the X509_STORE hackery necessary to make this
7128 work and makes it possible to use more efficient techniques
7129 in future. A very simple version which uses a simple
7130 STACK for its trusted certificate store is also provided
7131 using X509_STORE_CTX_trusted_stack().
7133 The verify_cb() and verify() callbacks now have equivalents
7134 in the X509_STORE_CTX structure.
7136 X509_STORE_CTX also has a 'flags' field which can be used
7137 to customise the verify behaviour.
7140 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7141 excludes S/MIME capabilities.
7144 *) When a certificate request is read in keep a copy of the
7145 original encoding of the signed data and use it when outputing
7146 again. Signatures then use the original encoding rather than
7147 a decoded, encoded version which may cause problems if the
7148 request is improperly encoded.
7151 *) For consistency with other BIO_puts implementations, call
7152 buffer_write(b, ...) directly in buffer_puts instead of calling
7155 In BIO_puts, increment b->num_write as in BIO_write.
7156 [Peter.Sylvester@EdelWeb.fr]
7158 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7159 BN_zero, we may not return a BIGNUM with an array consisting of
7163 *) Avoid calling abort() from within the library when problems are
7164 detected, except if preprocessor symbols have been defined
7165 (such as REF_CHECK, BN_DEBUG etc.).
7168 *) New openssl application 'rsautl'. This utility can be
7169 used for low level RSA operations. DER public key
7170 BIO/fp routines also added.
7173 *) New Configure entry and patches for compiling on QNX 4.
7174 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7176 *) A demo state-machine implementation was sponsored by
7177 Nuron (http://www.nuron.com/) and is now available in
7178 demos/state_machine.
7181 *) New options added to the 'dgst' utility for signature
7182 generation and verification.
7185 *) Unrecognized PKCS#7 content types are now handled via a
7186 catch all ASN1_TYPE structure. This allows unsupported
7187 types to be stored as a "blob" and an application can
7188 encode and decode it manually.
7191 *) Fix various signed/unsigned issues to make a_strex.c
7193 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7195 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7196 length if passed a buffer. ASN1_INTEGER_to_BN failed
7197 if passed a NULL BN and its argument was negative.
7198 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7200 *) Modification to PKCS#7 encoding routines to output definite
7201 length encoding. Since currently the whole structures are in
7202 memory there's not real point in using indefinite length
7203 constructed encoding. However if OpenSSL is compiled with
7204 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7207 *) Added BIO_vprintf() and BIO_vsnprintf().
7210 *) Added more prefixes to parse for in the the strings written
7211 through a logging bio, to cover all the levels that are available
7212 through syslog. The prefixes are now:
7214 PANIC, EMERG, EMR => LOG_EMERG
7215 ALERT, ALR => LOG_ALERT
7216 CRIT, CRI => LOG_CRIT
7217 ERROR, ERR => LOG_ERR
7218 WARNING, WARN, WAR => LOG_WARNING
7219 NOTICE, NOTE, NOT => LOG_NOTICE
7220 INFO, INF => LOG_INFO
7221 DEBUG, DBG => LOG_DEBUG
7223 and as before, if none of those prefixes are present at the
7224 beginning of the string, LOG_ERR is chosen.
7226 On Win32, the LOG_* levels are mapped according to this:
7228 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7229 LOG_WARNING => EVENTLOG_WARNING_TYPE
7230 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7234 *) Made it possible to reconfigure with just the configuration
7235 argument "reconf" or "reconfigure". The command line arguments
7236 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7237 and are retrieved from there when reconfiguring.
7241 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7243 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7246 *) The obj_dat.pl script was messing up the sorting of object
7247 names. The reason was that it compared the quoted version
7248 of strings as a result "OCSP" > "OCSP Signing" because
7249 " > SPACE. Changed script to store unquoted versions of
7250 names and add quotes on output. It was also omitting some
7251 names from the lookup table if they were given a default
7252 value (that is if SN is missing it is given the same
7253 value as LN and vice versa), these are now added on the
7254 grounds that if an object has a name we should be able to
7255 look it up. Finally added warning output when duplicate
7256 short or long names are found.
7259 *) Changes needed for Tandem NSK.
7260 [Scott Uroff <scott@xypro.com>]
7262 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7263 RSA_padding_check_SSLv23(), special padding was never detected
7264 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7265 version rollback attacks was not effective.
7267 In s23_clnt.c, don't use special rollback-attack detection padding
7268 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7269 client; similarly, in s23_srvr.c, don't do the rollback check if
7270 SSL 2.0 is the only protocol enabled in the server.
7273 *) Make it possible to get hexdumps of unprintable data with 'openssl
7274 asn1parse'. By implication, the functions ASN1_parse_dump() and
7275 BIO_dump_indent() are added.
7278 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7279 these print out strings and name structures based on various
7280 flags including RFC2253 support and proper handling of
7281 multibyte characters. Added options to the 'x509' utility
7282 to allow the various flags to be set.
7285 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7286 Also change the functions X509_cmp_current_time() and
7287 X509_gmtime_adj() work with an ASN1_TIME structure,
7288 this will enable certificates using GeneralizedTime in validity
7289 dates to be checked.
7292 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7293 negative public key encodings) on by default,
7294 NO_NEG_PUBKEY_BUG can be set to disable it.
7297 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7298 content octets. An i2c_ASN1_OBJECT is unnecessary because
7299 the encoding can be trivially obtained from the structure.
7302 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7303 not read locks (CRYPTO_r_[un]lock).
7306 *) A first attempt at creating official support for shared
7307 libraries through configuration. I've kept it so the
7308 default is static libraries only, and the OpenSSL programs
7309 are always statically linked for now, but there are
7310 preparations for dynamic linking in place.
7311 This has been tested on Linux and Tru64.
7314 *) Randomness polling function for Win9x, as described in:
7315 Peter Gutmann, Software Generation of Practically Strong
7319 *) Fix so PRNG is seeded in req if using an already existing
7323 *) New options to smime application. -inform and -outform
7324 allow alternative formats for the S/MIME message including
7325 PEM and DER. The -content option allows the content to be
7326 specified separately. This should allow things like Netscape
7327 form signing output easier to verify.
7330 *) Fix the ASN1 encoding of tags using the 'long form'.
7333 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7334 STRING types. These convert content octets to and from the
7335 underlying type. The actual tag and length octets are
7336 already assumed to have been read in and checked. These
7337 are needed because all other string types have virtually
7338 identical handling apart from the tag. By having versions
7339 of the ASN1 functions that just operate on content octets
7340 IMPLICIT tagging can be handled properly. It also allows
7341 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7342 and ASN1_INTEGER are identical apart from the tag.
7345 *) Change the handling of OID objects as follows:
7347 - New object identifiers are inserted in objects.txt, following
7348 the syntax given in objects.README.
7349 - objects.pl is used to process obj_mac.num and create a new
7351 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7354 This is currently kind of a hack, and the perl code in objects.pl
7355 isn't very elegant, but it works as I intended. The simplest way
7356 to check that it worked correctly is to look in obj_dat.h and
7357 check the array nid_objs and make sure the objects haven't moved
7358 around (this is important!). Additions are OK, as well as
7359 consistent name changes.
7362 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7365 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7366 The given file adds to whatever has already been seeded into the
7367 random pool through the RANDFILE configuration file option or
7368 environment variable, or the default random state file.
7371 *) mkstack.pl now sorts each macro group into lexical order.
7372 Previously the output order depended on the order the files
7373 appeared in the directory, resulting in needless rewriting
7377 *) Patches to make OpenSSL compile under Win32 again. Mostly
7378 work arounds for the VC++ problem that it treats func() as
7379 func(void). Also stripped out the parts of mkdef.pl that
7380 added extra typesafe functions: these no longer exist.
7383 *) Reorganisation of the stack code. The macros are now all
7384 collected in safestack.h . Each macro is defined in terms of
7385 a "stack macro" of the form SKM_<name>(type, a, b). The
7386 DEBUG_SAFESTACK is now handled in terms of function casts,
7387 this has the advantage of retaining type safety without the
7388 use of additional functions. If DEBUG_SAFESTACK is not defined
7389 then the non typesafe macros are used instead. Also modified the
7390 mkstack.pl script to handle the new form. Needs testing to see
7391 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7392 the default if no major problems. Similar behaviour for ASN1_SET_OF
7393 and PKCS12_STACK_OF.
7396 *) When some versions of IIS use the 'NET' form of private key the
7397 key derivation algorithm is different. Normally MD5(password) is
7398 used as a 128 bit RC4 key. In the modified case
7399 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7400 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7401 as the old Netscape_RSA functions except they have an additional
7402 'sgckey' parameter which uses the modified algorithm. Also added
7403 an -sgckey command line option to the rsa utility. Thanks to
7404 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7405 algorithm to openssl-dev.
7408 *) The evp_local.h macros were using 'c.##kname' which resulted in
7409 invalid expansion on some systems (SCO 5.0.5 for example).
7410 Corrected to 'c.kname'.
7411 [Phillip Porch <root@theporch.com>]
7413 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7414 a STACK of email addresses from a certificate or request, these look
7415 in the subject name and the subject alternative name extensions and
7416 omit any duplicate addresses.
7419 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7420 This makes DSA verification about 2 % faster.
7423 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7424 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7425 plus overhead for 1024 bit moduli).
7426 This makes exponentiations about 0.5 % faster for 1024 bit
7427 exponents (as measured by "openssl speed rsa2048").
7430 *) Rename memory handling macros to avoid conflicts with other
7432 Malloc => OPENSSL_malloc
7433 Malloc_locked => OPENSSL_malloc_locked
7434 Realloc => OPENSSL_realloc
7435 Free => OPENSSL_free
7438 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7439 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7442 *) CygWin32 support.
7443 [John Jarvie <jjarvie@newsguy.com>]
7445 *) The type-safe stack code has been rejigged. It is now only compiled
7446 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7447 by default all type-specific stack functions are "#define"d back to
7448 standard stack functions. This results in more streamlined output
7449 but retains the type-safety checking possibilities of the original
7453 *) The STACK code has been cleaned up, and certain type declarations
7454 that didn't make a lot of sense have been brought in line. This has
7455 also involved a cleanup of sorts in safestack.h to more correctly
7456 map type-safe stack functions onto their plain stack counterparts.
7457 This work has also resulted in a variety of "const"ifications of
7458 lots of the code, especially "_cmp" operations which should normally
7459 be prototyped with "const" parameters anyway.
7462 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7463 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7464 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7465 where all of 'md' is used each time the PRNG is used, but 'state'
7466 is used only indexed by a cyclic counter. As entropy may not be
7467 well distributed from the beginning, 'md' is important as a
7468 chaining variable. However, the output function chains only half
7469 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7470 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7471 in all of 'state' being rewritten, with the new values depending
7472 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7475 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7476 the handshake is continued after ssl_verify_cert_chain();
7477 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7478 can lead to 'unexplainable' connection aborts later.
7479 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7481 *) Major EVP API cipher revision.
7482 Add hooks for extra EVP features. This allows various cipher
7483 parameters to be set in the EVP interface. Support added for variable
7484 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7485 setting of RC2 and RC5 parameters.
7487 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7490 Remove lots of duplicated code from the EVP library. For example *every*
7491 cipher init() function handles the 'iv' in the same way according to the
7492 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7493 for CFB and OFB modes they zero ctx->num.
7495 New functionality allows removal of S/MIME code RC2 hack.
7497 Most of the routines have the same form and so can be declared in terms
7500 By shifting this to the top level EVP_CipherInit() it can be removed from
7501 all individual ciphers. If the cipher wants to handle IVs or keys
7502 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7505 Change lots of functions like EVP_EncryptUpdate() to now return a
7506 value: although software versions of the algorithms cannot fail
7507 any installed hardware versions can.
7510 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7511 this option is set, tolerate broken clients that send the negotiated
7512 protocol version number instead of the requested protocol version
7516 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7517 i.e. non-zero for export ciphersuites, zero otherwise.
7518 Previous versions had this flag inverted, inconsistent with
7519 rsa_tmp_cb (..._TMP_RSA_CB).
7520 [Bodo Moeller; problem reported by Amit Chopra]
7522 *) Add missing DSA library text string. Work around for some IIS
7523 key files with invalid SEQUENCE encoding.
7526 *) Add a document (doc/standards.txt) that list all kinds of standards
7527 and so on that are implemented in OpenSSL.
7530 *) Enhance c_rehash script. Old version would mishandle certificates
7531 with the same subject name hash and wouldn't handle CRLs at all.
7532 Added -fingerprint option to crl utility, to support new c_rehash
7536 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7539 *) Fix for SSL server purpose checking. Server checking was
7540 rejecting certificates which had extended key usage present
7541 but no ssl client purpose.
7542 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7544 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7545 is a little unclear about how a blank password is handled.
7546 Since the password in encoded as a BMPString with terminating
7547 double NULL a zero length password would end up as just the
7548 double NULL. However no password at all is different and is
7549 handled differently in the PKCS#12 key generation code. NS
7550 treats a blank password as zero length. MSIE treats it as no
7551 password on export: but it will try both on import. We now do
7552 the same: PKCS12_parse() tries zero length and no password if
7553 the password is set to "" or NULL (NULL is now a valid password:
7554 it wasn't before) as does the pkcs12 application.
7557 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7558 perror when PEM_read_bio_X509_REQ fails, the error message must
7559 be obtained from the error queue.
7562 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7563 it in ERR_remove_state if appropriate, and change ERR_get_state
7564 accordingly to avoid race conditions (this is necessary because
7565 thread_hash is no longer constant once set).
7568 *) Bugfix for linux-elf makefile.one.
7571 *) RSA_get_default_method() will now cause a default
7572 RSA_METHOD to be chosen if one doesn't exist already.
7573 Previously this was only set during a call to RSA_new()
7574 or RSA_new_method(NULL) meaning it was possible for
7575 RSA_get_default_method() to return NULL.
7578 *) Added native name translation to the existing DSO code
7579 that will convert (if the flag to do so is set) filenames
7580 that are sufficiently small and have no path information
7581 into a canonical native form. Eg. "blah" converted to
7582 "libblah.so" or "blah.dll" etc.
7585 *) New function ERR_error_string_n(e, buf, len) which is like
7586 ERR_error_string(e, buf), but writes at most 'len' bytes
7587 including the 0 terminator. For ERR_error_string_n, 'buf'
7589 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7591 *) CONF library reworked to become more general. A new CONF
7592 configuration file reader "class" is implemented as well as a
7593 new functions (NCONF_*, for "New CONF") to handle it. The now
7594 old CONF_* functions are still there, but are reimplemented to
7595 work in terms of the new functions. Also, a set of functions
7596 to handle the internal storage of the configuration data is
7597 provided to make it easier to write new configuration file
7598 reader "classes" (I can definitely see something reading a
7599 configuration file in XML format, for example), called _CONF_*,
7600 or "the configuration storage API"...
7602 The new configuration file reading functions are:
7604 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7605 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7607 NCONF_default, NCONF_WIN32
7609 NCONF_dump_fp, NCONF_dump_bio
7611 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7612 NCONF_new creates a new CONF object. This works in the same way
7613 as other interfaces in OpenSSL, like the BIO interface.
7614 NCONF_dump_* dump the internal storage of the configuration file,
7615 which is useful for debugging. All other functions take the same
7616 arguments as the old CONF_* functions wth the exception of the
7617 first that must be a `CONF *' instead of a `LHASH *'.
7619 To make it easer to use the new classes with the old CONF_* functions,
7620 the function CONF_set_default_method is provided.
7623 *) Add '-tls1' option to 'openssl ciphers', which was already
7624 mentioned in the documentation but had not been implemented.
7625 (This option is not yet really useful because even the additional
7626 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7629 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7630 OpenSSL-based applications) load shared libraries and bind to
7631 them in a portable way.
7632 [Geoff Thorpe, with contributions from Richard Levitte]
7634 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7636 *) Make sure _lrotl and _lrotr are only used with MSVC.
7638 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7639 (the default implementation of RAND_status).
7641 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7642 to '-clrext' (= clear extensions), as intended and documented.
7643 [Bodo Moeller; inconsistency pointed out by Michael Attili
7646 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7647 was larger than the MD block size.
7648 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7650 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7651 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7652 using the passed key: if the passed key was a private key the result
7653 of X509_print(), for example, would be to print out all the private key
7657 *) des_quad_cksum() byte order bug fix.
7658 [Ulf Möller, using the problem description in krb4-0.9.7, where
7659 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7661 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7663 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7665 *) For easily testing in shell scripts whether some command
7666 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7667 returns with exit code 0 iff no command of the given name is available.
7668 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7669 the output goes to stdout and nothing is printed to stderr.
7670 Additional arguments are always ignored.
7672 Since for each cipher there is a command of the same name,
7673 the 'no-cipher' compilation switches can be tested this way.
7675 ('openssl no-XXX' is not able to detect pseudo-commands such
7676 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7679 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7682 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7683 is set; it will be thrown away anyway because each handshake creates
7685 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7686 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7687 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7688 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7691 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7692 'Q' and 'R' lose their special meanings (quit/renegotiate).
7693 This is part of what -quiet does; unlike -quiet, -ign_eof
7694 does not suppress any output.
7697 *) Add compatibility options to the purpose and trust code. The
7698 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7699 accepts a certificate or CA, this was the previous behaviour,
7700 with all the associated security issues.
7702 X509_TRUST_COMPAT is the old trust behaviour: only and
7703 automatically trust self signed roots in certificate store. A
7704 new trust setting X509_TRUST_DEFAULT is used to specify that
7705 a purpose has no associated trust setting and it should instead
7706 use the value in the default purpose.
7709 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7710 and fix a memory leak.
7713 *) In util/mkerr.pl (which implements 'make errors'), preserve
7714 reason strings from the previous version of the .c file, as
7715 the default to have only downcase letters (and digits) in
7716 automatically generated reasons codes is not always appropriate.
7719 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7720 using strerror. Previously, ERR_reason_error_string() returned
7721 library names as reason strings for SYSerr; but SYSerr is a special
7722 case where small numbers are errno values, not library numbers.
7725 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7726 converts DSA parameters into DH parameters. (When creating parameters,
7727 DSA_generate_parameters is used.)
7730 *) Include 'length' (recommended exponent length) in C code generated
7731 by 'openssl dhparam -C'.
7734 *) The second argument to set_label in perlasm was already being used
7735 so couldn't be used as a "file scope" flag. Moved to third argument
7739 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7740 instead of RAND_bytes for encryption IVs and salts.
7743 *) Include RAND_status() into RAND_METHOD instead of implementing
7744 it only for md_rand.c Otherwise replacing the PRNG by calling
7745 RAND_set_rand_method would be impossible.
7748 *) Don't let DSA_generate_key() enter an infinite loop if the random
7749 number generation fails.
7752 *) New 'rand' application for creating pseudo-random output.
7755 *) Added configuration support for Linux/IA64
7756 [Rolf Haberrecker <rolf@suse.de>]
7758 *) Assembler module support for Mingw32.
7761 *) Shared library support for HPUX (in shlib/).
7762 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7764 *) Shared library support for Solaris gcc.
7765 [Lutz Behnke <behnke@trustcenter.de>]
7767 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7769 *) PKCS7_encrypt() was adding text MIME headers twice because they
7770 were added manually and by SMIME_crlf_copy().
7773 *) In bntest.c don't call BN_rand with zero bits argument.
7774 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7776 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7777 case was implemented. This caused BN_div_recp() to fail occasionally.
7780 *) Add an optional second argument to the set_label() in the perl
7781 assembly language builder. If this argument exists and is set
7782 to 1 it signals that the assembler should use a symbol whose
7783 scope is the entire file, not just the current function. This
7784 is needed with MASM which uses the format label:: for this scope.
7785 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7787 *) Change the ASN1 types so they are typedefs by default. Before
7788 almost all types were #define'd to ASN1_STRING which was causing
7789 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7793 *) Change names of new functions to the new get1/get0 naming
7794 convention: After 'get1', the caller owns a reference count
7795 and has to call ..._free; 'get0' returns a pointer to some
7796 data structure without incrementing reference counters.
7797 (Some of the existing 'get' functions increment a reference
7798 counter, some don't.)
7799 Similarly, 'set1' and 'add1' functions increase reference
7800 counters or duplicate objects.
7803 *) Allow for the possibility of temp RSA key generation failure:
7804 the code used to assume it always worked and crashed on failure.
7807 *) Fix potential buffer overrun problem in BIO_printf().
7808 [Ulf Möller, using public domain code by Patrick Powell; problem
7809 pointed out by David Sacerdote <das33@cornell.edu>]
7811 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7812 RAND_egd() and RAND_status(). In the command line application,
7813 the EGD socket can be specified like a seed file using RANDFILE
7817 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7818 Some CAs (e.g. Verisign) distribute certificates in this form.
7821 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7822 list to exclude them. This means that no special compilation option
7823 is needed to use anonymous DH: it just needs to be included in the
7827 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7828 EVP_MD_type. The old functionality is available in a new macro called
7829 EVP_MD_md(). Change code that uses it and update docs.
7832 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7833 where the 'void *' argument is replaced by a function pointer argument.
7834 Previously 'void *' was abused to point to functions, which works on
7835 many platforms, but is not correct. As these functions are usually
7836 called by macros defined in OpenSSL header files, most source code
7837 should work without changes.
7840 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7841 sections with information on -D... compiler switches used for
7842 compiling the library so that applications can see them. To enable
7843 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7844 must be defined. E.g.,
7845 #define OPENSSL_ALGORITHM_DEFINES
7846 #include <openssl/opensslconf.h>
7847 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7848 [Richard Levitte, Ulf and Bodo Möller]
7850 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7854 *) Change the 'other' type in certificate aux info to a STACK_OF
7855 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7856 the required ASN1 format: arbitrary types determined by an OID.
7859 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7860 argument to 'req'. This is not because the function is newer or
7861 better than others it just uses the work 'NEW' in the certificate
7862 request header lines. Some software needs this.
7865 *) Reorganise password command line arguments: now passwords can be
7866 obtained from various sources. Delete the PEM_cb function and make
7867 it the default behaviour: i.e. if the callback is NULL and the
7868 usrdata argument is not NULL interpret it as a null terminated pass
7869 phrase. If usrdata and the callback are NULL then the pass phrase
7870 is prompted for as usual.
7873 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7874 the support is automatically enabled. The resulting binaries will
7875 autodetect the card and use it if present.
7876 [Ben Laurie and Compaq Inc.]
7878 *) Work around for Netscape hang bug. This sends certificate request
7879 and server done in one record. Since this is perfectly legal in the
7880 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7881 the bugs/SSLv3 entry for more info.
7884 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7887 *) Add -rand argument to smime and pkcs12 applications and read/write
7891 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7894 *) Add command line password options to the remaining applications.
7897 *) Bug fix for BN_div_recp() for numerators with an even number of
7901 *) More tests in bntest.c, and changed test_bn output.
7904 *) ./config recognizes MacOS X now.
7907 *) Bug fix for BN_div() when the first words of num and divsor are
7908 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7911 *) Add support for various broken PKCS#8 formats, and command line
7912 options to produce them.
7915 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7916 get temporary BIGNUMs from a BN_CTX.
7919 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7923 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7924 include a #define from the old name to the new. The original intent
7925 was that statically linked binaries could for example just call
7926 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7927 link with digests. This never worked becayse SSLeay_add_all_digests()
7928 and SSLeay_add_all_ciphers() were in the same source file so calling
7929 one would link with the other. They are now in separate source files.
7932 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7935 *) Use a less unusual form of the Miller-Rabin primality test (it used
7936 a binary algorithm for exponentiation integrated into the Miller-Rabin
7937 loop, our standard modexp algorithms are faster).
7940 *) Support for the EBCDIC character set completed.
7941 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7943 *) Source code cleanups: use const where appropriate, eliminate casts,
7944 use void * instead of char * in lhash.
7947 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7948 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7949 this the server could overwrite ephemeral keys that the client
7953 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7954 using 50 iterations of the Rabin-Miller test.
7956 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7957 iterations of the Rabin-Miller test as required by the appendix
7958 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7959 As BN_is_prime_fasttest includes trial division, DSA parameter
7960 generation becomes much faster.
7962 This implies a change for the callback functions in DSA_is_prime
7963 and DSA_generate_parameters: The callback function is called once
7964 for each positive witness in the Rabin-Miller test, not just
7965 occasionally in the inner loop; and the parameters to the
7966 callback function now provide an iteration count for the outer
7967 loop rather than for the current invocation of the inner loop.
7968 DSA_generate_parameters additionally can call the callback
7969 function with an 'iteration count' of -1, meaning that a
7970 candidate has passed the trial division test (when q is generated
7971 from an application-provided seed, trial division is skipped).
7974 *) New function BN_is_prime_fasttest that optionally does trial
7975 division before starting the Rabin-Miller test and has
7976 an additional BN_CTX * argument (whereas BN_is_prime always
7977 has to allocate at least one BN_CTX).
7978 'callback(1, -1, cb_arg)' is called when a number has passed the
7979 trial division stage.
7982 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7986 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7989 *) New function BN_pseudo_rand().
7992 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7993 bignum version of BN_from_montgomery() with the working code from
7994 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7998 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7999 made it impossible to use the same SSL_SESSION data structure in
8000 SSL2 clients in multiple threads.
8003 *) The return value of RAND_load_file() no longer counts bytes obtained
8004 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8005 to seed the PRNG (previously an explicit byte count was required).
8006 [Ulf Möller, Bodo Möller]
8008 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8009 used (char *) instead of (void *) and had casts all over the place.
8012 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8015 *) Retain source code compatibility for BN_prime_checks macro:
8016 BN_is_prime(..., BN_prime_checks, ...) now uses
8017 BN_prime_checks_for_size to determine the appropriate number of
8018 Rabin-Miller iterations.
8021 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8022 DH_CHECK_P_NOT_SAFE_PRIME.
8023 (Check if this is true? OpenPGP calls them "strong".)
8026 *) Merge the functionality of "dh" and "gendh" programs into a new program
8027 "dhparam". The old programs are retained for now but will handle DH keys
8028 (instead of parameters) in future.
8031 *) Make the ciphers, s_server and s_client programs check the return values
8032 when a new cipher list is set.
8035 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8036 ciphers. Before when the 56bit ciphers were enabled the sorting was
8039 The syntax for the cipher sorting has been extended to support sorting by
8040 cipher-strength (using the strength_bits hard coded in the tables).
8041 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8043 Fix a bug in the cipher-command parser: when supplying a cipher command
8044 string with an "undefined" symbol (neither command nor alphanumeric
8045 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8046 an error is flagged.
8048 Due to the strength-sorting extension, the code of the
8049 ssl_create_cipher_list() function was completely rearranged. I hope that
8050 the readability was also increased :-)
8051 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8053 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8054 for the first serial number and places 2 in the serial number file. This
8055 avoids problems when the root CA is created with serial number zero and
8056 the first user certificate has the same issuer name and serial number
8060 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8061 the new code. Add documentation for this stuff.
8064 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8065 X509_*() to X509at_*() on the grounds that they don't handle X509
8066 structures and behave in an analagous way to the X509v3 functions:
8067 they shouldn't be called directly but wrapper functions should be used
8070 So we also now have some wrapper functions that call the X509at functions
8071 when passed certificate requests. (TO DO: similar things can be done with
8072 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8073 things. Some of these need some d2i or i2d and print functionality
8074 because they handle more complex structures.)
8077 *) Add missing #ifndefs that caused missing symbols when building libssl
8078 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8079 NO_RSA in ssl/s2*.c.
8080 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8082 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8083 has a return value which indicates the quality of the random data
8084 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8085 error queue. New function RAND_pseudo_bytes() generates output that is
8086 guaranteed to be unique but not unpredictable. RAND_add is like
8087 RAND_seed, but takes an extra argument for an entropy estimate
8088 (RAND_seed always assumes full entropy).
8091 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8092 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8093 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8094 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8095 false-positive rate of at most 2^-80 for random input.
8098 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8101 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8102 in the 0.9.5 release), this returns the chain
8103 from an X509_CTX structure with a dup of the stack and all
8104 the X509 reference counts upped: so the stack will exist
8105 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8108 Also make SSL_SESSION_print() print out the verify return
8112 *) Add manpage for the pkcs12 command. Also change the default
8113 behaviour so MAC iteration counts are used unless the new
8114 -nomaciter option is used. This improves file security and
8115 only older versions of MSIE (4.0 for example) need it.
8118 *) Honor the no-xxx Configure options when creating .DEF files.
8121 *) Add PKCS#10 attributes to field table: challengePassword,
8122 unstructuredName and unstructuredAddress. These are taken from
8123 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8124 international characters are used.
8126 More changes to X509_ATTRIBUTE code: allow the setting of types
8127 based on strings. Remove the 'loc' parameter when adding
8128 attributes because these will be a SET OF encoding which is sorted
8132 *) Initial changes to the 'req' utility to allow request generation
8133 automation. This will allow an application to just generate a template
8134 file containing all the field values and have req construct the
8137 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8138 used all over the place including certificate requests and PKCS#7
8139 structures. They are currently handled manually where necessary with
8140 some primitive wrappers for PKCS#7. The new functions behave in a
8141 manner analogous to the X509 extension functions: they allow
8142 attributes to be looked up by NID and added.
8144 Later something similar to the X509V3 code would be desirable to
8145 automatically handle the encoding, decoding and printing of the
8146 more complex types. The string types like challengePassword can
8147 be handled by the string table functions.
8149 Also modified the multi byte string table handling. Now there is
8150 a 'global mask' which masks out certain types. The table itself
8151 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8152 is useful when for example there is only one permissible type
8153 (as in countryName) and using the mask might result in no valid
8157 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8158 SSL_get_peer_finished to allow applications to obtain the latest
8159 Finished messages sent to the peer or expected from the peer,
8160 respectively. (SSL_get_peer_finished is usually the Finished message
8161 actually received from the peer, otherwise the protocol will be aborted.)
8163 As the Finished message are message digests of the complete handshake
8164 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8165 be used for external authentication procedures when the authentication
8166 provided by SSL/TLS is not desired or is not enough.
8169 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8170 the host supports BWX extension and if Compaq C is present on the
8171 $PATH. Just exploiting of the BWX extension results in 20-30%
8172 performance kick for some algorithms, e.g. DES and RC4 to mention
8173 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8177 *) Add support for MS "fast SGC". This is arguably a violation of the
8178 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8179 weak crypto and after checking the certificate is SGC a second one
8180 with strong crypto. MS SGC stops the first handshake after receiving
8181 the server certificate message and sends a second client hello. Since
8182 a server will typically do all the time consuming operations before
8183 expecting any further messages from the client (server key exchange
8184 is the most expensive) there is little difference between the two.
8186 To get OpenSSL to support MS SGC we have to permit a second client
8187 hello message after we have sent server done. In addition we have to
8188 reset the MAC if we do get this second client hello.
8191 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8192 if a DER encoded private key is RSA or DSA traditional format. Changed
8193 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8194 format DER encoded private key. Newer code should use PKCS#8 format which
8195 has the key type encoded in the ASN1 structure. Added DER private key
8196 support to pkcs8 application.
8199 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8200 ciphersuites has been selected (as required by the SSL 3/TLS 1
8201 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8202 is set, we interpret this as a request to violate the specification
8203 (the worst that can happen is a handshake failure, and 'correct'
8204 behaviour would result in a handshake failure anyway).
8207 *) In SSL_CTX_add_session, take into account that there might be multiple
8208 SSL_SESSION structures with the same session ID (e.g. when two threads
8209 concurrently obtain them from an external cache).
8210 The internal cache can handle only one SSL_SESSION with a given ID,
8211 so if there's a conflict, we now throw out the old one to achieve
8215 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8216 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8217 some routines that use cipher OIDs: some ciphers do not have OIDs
8218 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8222 *) Simplify the trust setting structure and code. Now we just have
8223 two sequences of OIDs for trusted and rejected settings. These will
8224 typically have values the same as the extended key usage extension
8225 and any application specific purposes.
8227 The trust checking code now has a default behaviour: it will just
8228 check for an object with the same NID as the passed id. Functions can
8229 be provided to override either the default behaviour or the behaviour
8230 for a given id. SSL client, server and email already have functions
8231 in place for compatibility: they check the NID and also return "trusted"
8232 if the certificate is self signed.
8235 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8236 traditional format into an EVP_PKEY structure.
8239 *) Add a password callback function PEM_cb() which either prompts for
8240 a password if usr_data is NULL or otherwise assumes it is a null
8241 terminated password. Allow passwords to be passed on command line
8242 environment or config files in a few more utilities.
8245 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8246 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8247 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8248 Update documentation.
8251 *) Support for ASN1 "NULL" type. This could be handled before by using
8252 ASN1_TYPE but there wasn't any function that would try to read a NULL
8253 and produce an error if it couldn't. For compatibility we also have
8254 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8255 don't allocate anything because they don't need to.
8258 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8260 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8262 *) Rebuild of the memory allocation routines used by OpenSSL code and
8263 possibly others as well. The purpose is to make an interface that
8264 provide hooks so anyone can build a separate set of allocation and
8265 deallocation routines to be used by OpenSSL, for example memory
8266 pool implementations, or something else, which was previously hard
8267 since Malloc(), Realloc() and Free() were defined as macros having
8268 the values malloc, realloc and free, respectively (except for Win32
8269 compilations). The same is provided for memory debugging code.
8270 OpenSSL already comes with functionality to find memory leaks, but
8271 this gives people a chance to debug other memory problems.
8273 With these changes, a new set of functions and macros have appeared:
8275 CRYPTO_set_mem_debug_functions() [F]
8276 CRYPTO_get_mem_debug_functions() [F]
8277 CRYPTO_dbg_set_options() [F]
8278 CRYPTO_dbg_get_options() [F]
8279 CRYPTO_malloc_debug_init() [M]
8281 The memory debug functions are NULL by default, unless the library
8282 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8283 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8284 gives the standard debugging functions that come with OpenSSL) or
8285 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8286 provided by the library user) must be used. When the standard
8287 debugging functions are used, CRYPTO_dbg_set_options can be used to
8288 request additional information:
8289 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8290 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8292 Also, things like CRYPTO_set_mem_functions will always give the
8293 expected result (the new set of functions is used for allocation
8294 and deallocation) at all times, regardless of platform and compiler
8297 To finish it up, some functions that were never use in any other
8298 way than through macros have a new API and new semantic:
8301 CRYPTO_dbg_realloc()
8304 All macros of value have retained their old syntax.
8305 [Richard Levitte and Bodo Moeller]
8307 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8308 ordering of SMIMECapabilities wasn't in "strength order" and there
8309 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8313 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8314 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8315 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8317 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8318 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8319 functionality to handle multipart/signed properly) and a utility
8320 called 'smime' to call all this stuff. This is based on code I
8321 originally wrote for Celo who have kindly allowed it to be
8322 included in OpenSSL.
8325 *) Add variants des_set_key_checked and des_set_key_unchecked of
8326 des_set_key (aka des_key_sched). Global variable des_check_key
8327 decides which of these is called by des_set_key; this way
8328 des_check_key behaves as it always did, but applications and
8329 the library itself, which was buggy for des_check_key == 1,
8330 have a cleaner way to pick the version they need.
8333 *) New function PKCS12_newpass() which changes the password of a
8337 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8338 dynamic mix. In both cases the ids can be used as an index into the
8339 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8340 functions so they accept a list of the field values and the
8341 application doesn't need to directly manipulate the X509_TRUST
8345 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8349 *) Modify the way the V3 extension code looks up extensions. This now
8350 works in a similar way to the object code: we have some "standard"
8351 extensions in a static table which is searched with OBJ_bsearch()
8352 and the application can add dynamic ones if needed. The file
8353 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8354 updated whenever a new extension is added to the core code and kept
8355 in ext_nid order. There is a simple program 'tabtest.c' which checks
8356 this. New extensions are not added too often so this file can readily
8357 be maintained manually.
8359 There are two big advantages in doing things this way. The extensions
8360 can be looked up immediately and no longer need to be "added" using
8361 X509V3_add_standard_extensions(): this function now does nothing.
8362 [Side note: I get *lots* of email saying the extension code doesn't
8363 work because people forget to call this function]
8364 Also no dynamic allocation is done unless new extensions are added:
8365 so if we don't add custom extensions there is no need to call
8366 X509V3_EXT_cleanup().
8369 *) Modify enc utility's salting as follows: make salting the default. Add a
8370 magic header, so unsalted files fail gracefully instead of just decrypting
8371 to garbage. This is because not salting is a big security hole, so people
8372 should be discouraged from doing it.
8375 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8376 digest to be passed on the command line but it only used this
8377 parameter when signing a certificate. Modified so all relevant
8378 operations are affected by the digest parameter including the
8379 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8380 DSA key was used because it didn't fix the digest.
8383 *) Initial certificate chain verify code. Currently tests the untrusted
8384 certificates for consistency with the verify purpose (which is set
8385 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8387 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8388 this is because it will reject chains with invalid extensions whereas
8389 every previous version of OpenSSL and SSLeay made no checks at all.
8391 Trust code: checks the root CA for the relevant trust settings. Trust
8392 settings have an initial value consistent with the verify purpose: e.g.
8393 if the verify purpose is for SSL client use it expects the CA to be
8394 trusted for SSL client use. However the default value can be changed to
8395 permit custom trust settings: one example of this would be to only trust
8396 certificates from a specific "secure" set of CAs.
8398 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8399 which should be used for version portability: especially since the
8400 verify structure is likely to change more often now.
8402 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8403 to set them. If not set then assume SSL clients will verify SSL servers
8406 Two new options to the verify program: -untrusted allows a set of
8407 untrusted certificates to be passed in and -purpose which sets the
8408 intended purpose of the certificate. If a purpose is set then the
8409 new chain verify code is used to check extension consistency.
8412 *) Support for the authority information access extension.
8415 *) Modify RSA and DSA PEM read routines to transparently handle
8416 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8417 public keys in a format compatible with certificate
8418 SubjectPublicKeyInfo structures. Unfortunately there were already
8419 functions called *_PublicKey_* which used various odd formats so
8420 these are retained for compatibility: however the DSA variants were
8421 never in a public release so they have been deleted. Changed dsa/rsa
8422 utilities to handle the new format: note no releases ever handled public
8423 keys so we should be OK.
8425 The primary motivation for this change is to avoid the same fiasco
8426 that dogs private keys: there are several incompatible private key
8427 formats some of which are standard and some OpenSSL specific and
8428 require various evil hacks to allow partial transparent handling and
8429 even then it doesn't work with DER formats. Given the option anything
8430 other than PKCS#8 should be dumped: but the other formats have to
8431 stay in the name of compatibility.
8433 With public keys and the benefit of hindsight one standard format
8434 is used which works with EVP_PKEY, RSA or DSA structures: though
8435 it clearly returns an error if you try to read the wrong kind of key.
8437 Added a -pubkey option to the 'x509' utility to output the public key.
8438 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8439 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8440 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8441 that do the same as the EVP_PKEY_assign_*() except they up the
8442 reference count of the added key (they don't "swallow" the
8446 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8447 CRLs would fail if the file contained no certificates or no CRLs:
8448 added a new function to read in both types and return the number
8449 read: this means that if none are read it will be an error. The
8450 DER versions of the certificate and CRL reader would always fail
8451 because it isn't possible to mix certificates and CRLs in DER format
8452 without choking one or the other routine. Changed this to just read
8453 a certificate: this is the best we can do. Also modified the code
8454 in apps/verify.c to take notice of return codes: it was previously
8455 attempting to read in certificates from NULL pointers and ignoring
8456 any errors: this is one reason why the cert and CRL reader seemed
8457 to work. It doesn't check return codes from the default certificate
8458 routines: these may well fail if the certificates aren't installed.
8461 *) Code to support otherName option in GeneralName.
8464 *) First update to verify code. Change the verify utility
8465 so it warns if it is passed a self signed certificate:
8466 for consistency with the normal behaviour. X509_verify
8467 has been modified to it will now verify a self signed
8468 certificate if *exactly* the same certificate appears
8469 in the store: it was previously impossible to trust a
8470 single self signed certificate. This means that:
8471 openssl verify ss.pem
8472 now gives a warning about a self signed certificate but
8473 openssl verify -CAfile ss.pem ss.pem
8477 *) For servers, store verify_result in SSL_SESSION data structure
8478 (and add it to external session representation).
8479 This is needed when client certificate verifications fails,
8480 but an application-provided verification callback (set by
8481 SSL_CTX_set_cert_verify_callback) allows accepting the session
8482 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8483 but returns 1): When the session is reused, we have to set
8484 ssl->verify_result to the appropriate error code to avoid
8486 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8488 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8489 case in PKCS7_dataInit() where the signed PKCS7 structure
8490 didn't contain any existing data because it was being created.
8491 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8493 *) Add a salt to the key derivation routines in enc.c. This
8494 forms the first 8 bytes of the encrypted file. Also add a
8495 -S option to allow a salt to be input on the command line.
8498 *) New function X509_cmp(). Oddly enough there wasn't a function
8499 to compare two certificates. We do this by working out the SHA1
8500 hash and comparing that. X509_cmp() will be needed by the trust
8504 *) SSL_get1_session() is like SSL_get_session(), but increments
8505 the reference count in the SSL_SESSION returned.
8506 [Geoff Thorpe <geoff@eu.c2.net>]
8508 *) Fix for 'req': it was adding a null to request attributes.
8509 Also change the X509_LOOKUP and X509_INFO code to handle
8510 certificate auxiliary information.
8513 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8517 *) Add the possibility to add extra information to the memory leak
8518 detecting output, to form tracebacks, showing from where each
8519 allocation was originated: CRYPTO_push_info("constant string") adds
8520 the string plus current file name and line number to a per-thread
8521 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8522 is like calling CYRPTO_pop_info() until the stack is empty.
8523 Also updated memory leak detection code to be multi-thread-safe.
8526 *) Add options -text and -noout to pkcs7 utility and delete the
8527 encryption options which never did anything. Update docs.
8530 *) Add options to some of the utilities to allow the pass phrase
8531 to be included on either the command line (not recommended on
8532 OSes like Unix) or read from the environment. Update the
8533 manpages and fix a few bugs.
8536 *) Add a few manpages for some of the openssl commands.
8539 *) Fix the -revoke option in ca. It was freeing up memory twice,
8540 leaking and not finding already revoked certificates.
8543 *) Extensive changes to support certificate auxiliary information.
8544 This involves the use of X509_CERT_AUX structure and X509_AUX
8545 functions. An X509_AUX function such as PEM_read_X509_AUX()
8546 can still read in a certificate file in the usual way but it
8547 will also read in any additional "auxiliary information". By
8548 doing things this way a fair degree of compatibility can be
8549 retained: existing certificates can have this information added
8550 using the new 'x509' options.
8552 Current auxiliary information includes an "alias" and some trust
8553 settings. The trust settings will ultimately be used in enhanced
8554 certificate chain verification routines: currently a certificate
8555 can only be trusted if it is self signed and then it is trusted
8559 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8560 The problem was that one of the replacement routines had not been working
8561 since SSLeay releases. For now the offending routine has been replaced
8562 with non-optimised assembler. Even so, this now gives around 95%
8563 performance improvement for 1024 bit RSA signs.
8566 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8567 handling. Most clients have the effective key size in bits equal to
8568 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8569 A few however don't do this and instead use the size of the decrypted key
8570 to determine the RC2 key length and the AlgorithmIdentifier to determine
8571 the effective key length. In this case the effective key length can still
8572 be 40 bits but the key length can be 168 bits for example. This is fixed
8573 by manually forcing an RC2 key into the EVP_PKEY structure because the
8574 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8575 the key length and effective key length are equal.
8578 *) Add a bunch of functions that should simplify the creation of
8579 X509_NAME structures. Now you should be able to do:
8580 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8581 and have it automatically work out the correct field type and fill in
8582 the structures. The more adventurous can try:
8583 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8584 and it will (hopefully) work out the correct multibyte encoding.
8587 *) Change the 'req' utility to use the new field handling and multibyte
8588 copy routines. Before the DN field creation was handled in an ad hoc
8589 way in req, ca, and x509 which was rather broken and didn't support
8590 BMPStrings or UTF8Strings. Since some software doesn't implement
8591 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8592 using the dirstring_type option. See the new comment in the default
8593 openssl.cnf for more info.
8596 *) Make crypto/rand/md_rand.c more robust:
8597 - Assure unique random numbers after fork().
8598 - Make sure that concurrent threads access the global counter and
8599 md serializably so that we never lose entropy in them
8600 or use exactly the same state in multiple threads.
8601 Access to the large state is not always serializable because
8602 the additional locking could be a performance killer, and
8603 md should be large enough anyway.
8606 *) New file apps/app_rand.c with commonly needed functionality
8607 for handling the random seed file.
8609 Use the random seed file in some applications that previously did not:
8611 dsaparam -genkey (which also ignored its '-rand' option),
8614 x509 (when signing).
8615 Except on systems with /dev/urandom, it is crucial to have a random
8616 seed file at least for key creation, DSA signing, and for DH exchanges;
8617 for RSA signatures we could do without one.
8619 gendh and gendsa (unlike genrsa) used to read only the first byte
8620 of each file listed in the '-rand' option. The function as previously
8621 found in genrsa is now in app_rand.c and is used by all programs
8622 that support '-rand'.
8625 *) In RAND_write_file, use mode 0600 for creating files;
8626 don't just chmod when it may be too late.
8629 *) Report an error from X509_STORE_load_locations
8630 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8633 *) New function ASN1_mbstring_copy() this copies a string in either
8634 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8635 into an ASN1_STRING type. A mask of permissible types is passed
8636 and it chooses the "minimal" type to use or an error if not type
8640 *) Add function equivalents to the various macros in asn1.h. The old
8641 macros are retained with an M_ prefix. Code inside the library can
8642 use the M_ macros. External code (including the openssl utility)
8643 should *NOT* in order to be "shared library friendly".
8646 *) Add various functions that can check a certificate's extensions
8647 to see if it usable for various purposes such as SSL client,
8648 server or S/MIME and CAs of these types. This is currently
8649 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8650 verification. Also added a -purpose flag to x509 utility to
8651 print out all the purposes.
8654 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8658 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8659 for, obtain and decode and extension and obtain its critical flag.
8660 This allows all the necessary extension code to be handled in a
8661 single function call.
8664 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8665 platforms. See crypto/rc4/rc4_enc.c for further details.
8668 *) New -noout option to asn1parse. This causes no output to be produced
8669 its main use is when combined with -strparse and -out to extract data
8670 from a file (which may not be in ASN.1 format).
8673 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8674 when producing the local key id.
8675 [Richard Levitte <levitte@stacken.kth.se>]
8677 *) New option -dhparam in s_server. This allows a DH parameter file to be
8678 stated explicitly. If it is not stated then it tries the first server
8679 certificate file. The previous behaviour hard coded the filename
8683 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8684 a public key to be input or output. For example:
8685 openssl rsa -in key.pem -pubout -out pubkey.pem
8686 Also added necessary DSA public key functions to handle this.
8689 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8690 in the message. This was handled by allowing
8691 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8692 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8694 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8695 to the end of the strings whereas this didn't. This would cause problems
8696 if strings read with d2i_ASN1_bytes() were later modified.
8697 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8699 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8700 data and it contains EOF it will end up returning an error. This is
8701 caused by input 46 bytes long. The cause is due to the way base64
8702 BIOs find the start of base64 encoded data. They do this by trying a
8703 trial decode on each line until they find one that works. When they
8704 do a flag is set and it starts again knowing it can pass all the
8705 data directly through the decoder. Unfortunately it doesn't reset
8706 the context it uses. This means that if EOF is reached an attempt
8707 is made to pass two EOFs through the context and this causes the
8708 resulting error. This can also cause other problems as well. As is
8709 usual with these problems it takes *ages* to find and the fix is
8710 trivial: move one line.
8711 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8713 *) Ugly workaround to get s_client and s_server working under Windows. The
8714 old code wouldn't work because it needed to select() on sockets and the
8715 tty (for keypresses and to see if data could be written). Win32 only
8716 supports select() on sockets so we select() with a 1s timeout on the
8717 sockets and then see if any characters are waiting to be read, if none
8718 are present then we retry, we also assume we can always write data to
8719 the tty. This isn't nice because the code then blocks until we've
8720 received a complete line of data and it is effectively polling the
8721 keyboard at 1s intervals: however it's quite a bit better than not
8722 working at all :-) A dedicated Windows application might handle this
8723 with an event loop for example.
8726 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8727 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8728 will be called when RSA_sign() and RSA_verify() are used. This is useful
8729 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8730 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8731 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8732 This necessitated the support of an extra signature type NID_md5_sha1
8733 for SSL signatures and modifications to the SSL library to use it instead
8734 of calling RSA_public_decrypt() and RSA_private_encrypt().
8737 *) Add new -verify -CAfile and -CApath options to the crl program, these
8738 will lookup a CRL issuers certificate and verify the signature in a
8739 similar way to the verify program. Tidy up the crl program so it
8740 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8741 less strict. It will now permit CRL extensions even if it is not
8742 a V2 CRL: this will allow it to tolerate some broken CRLs.
8745 *) Initialize all non-automatic variables each time one of the openssl
8746 sub-programs is started (this is necessary as they may be started
8747 multiple times from the "OpenSSL>" prompt).
8748 [Lennart Bang, Bodo Moeller]
8750 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8751 removing all other RSA functionality (this is what NO_RSA does). This
8752 is so (for example) those in the US can disable those operations covered
8753 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8757 *) Non-copying interface to BIO pairs.
8758 (still largely untested)
8761 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8762 ASCII string. This was handled independently in various places before.
8765 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8766 UTF8 strings a character at a time.
8769 *) Use client_version from client hello to select the protocol
8770 (s23_srvr.c) and for RSA client key exchange verification
8771 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8774 *) Add various utility functions to handle SPKACs, these were previously
8775 handled by poking round in the structure internals. Added new function
8776 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8777 print, verify and generate SPKACs. Based on an original idea from
8778 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8781 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8784 *) Allow the config file extension section to be overwritten on the
8785 command line. Based on an original idea from Massimiliano Pala
8786 <madwolf@comune.modena.it>. The new option is called -extensions
8787 and can be applied to ca, req and x509. Also -reqexts to override
8788 the request extensions in req and -crlexts to override the crl extensions
8792 *) Add new feature to the SPKAC handling in ca. Now you can include
8793 the same field multiple times by preceding it by "XXXX." for example:
8796 this is the same syntax as used in the req config file.
8799 *) Allow certificate extensions to be added to certificate requests. These
8800 are specified in a 'req_extensions' option of the req section of the
8801 config file. They can be printed out with the -text option to req but
8802 are otherwise ignored at present.
8805 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8806 data read consists of only the final block it would not decrypted because
8807 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8808 A misplaced 'break' also meant the decrypted final block might not be
8809 copied until the next read.
8812 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8813 a few extra parameters to the DH structure: these will be useful if
8814 for example we want the value of 'q' or implement X9.42 DH.
8817 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8818 provides hooks that allow the default DSA functions or functions on a
8819 "per key" basis to be replaced. This allows hardware acceleration and
8820 hardware key storage to be handled without major modification to the
8821 library. Also added low level modexp hooks and CRYPTO_EX structure and
8822 associated functions.
8825 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8826 as "read only": it can't be written to and the buffer it points to will
8827 not be freed. Reading from a read only BIO is much more efficient than
8828 a normal memory BIO. This was added because there are several times when
8829 an area of memory needs to be read from a BIO. The previous method was
8830 to create a memory BIO and write the data to it, this results in two
8831 copies of the data and an O(n^2) reading algorithm. There is a new
8832 function BIO_new_mem_buf() which creates a read only memory BIO from
8833 an area of memory. Also modified the PKCS#7 routines to use read only
8837 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8838 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8839 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8840 but a retry condition occured while trying to read the rest.
8843 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8844 NID_pkcs7_encrypted by default: this was wrong since this should almost
8845 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8846 the encrypted data type: this is a more sensible place to put it and it
8847 allows the PKCS#12 code to be tidied up that duplicated this
8851 *) Changed obj_dat.pl script so it takes its input and output files on
8852 the command line. This should avoid shell escape redirection problems
8856 *) Initial support for certificate extension requests, these are included
8857 in things like Xenroll certificate requests. Included functions to allow
8858 extensions to be obtained and added.
8861 *) -crlf option to s_client and s_server for sending newlines as
8862 CRLF (as required by many protocols).
8865 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8867 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8868 [Ralf S. Engelschall]
8870 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8871 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8873 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8877 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8878 DH parameters/keys (q is lost during that conversion, but the resulting
8879 DH parameters contain its length).
8881 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8882 much faster than DH_generate_parameters (which creates parameters
8883 where p = 2*q + 1), and also the smaller q makes DH computations
8884 much more efficient (160-bit exponentiation instead of 1024-bit
8885 exponentiation); so this provides a convenient way to support DHE
8886 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8887 utter importance to use
8888 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8890 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8891 when such DH parameters are used, because otherwise small subgroup
8892 attacks may become possible!
8895 *) Avoid memory leak in i2d_DHparams.
8898 *) Allow the -k option to be used more than once in the enc program:
8899 this allows the same encrypted message to be read by multiple recipients.
8902 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8903 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8904 it will always use the numerical form of the OID, even if it has a short
8908 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8909 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8910 otherwise bn_mod_exp was called. In the case of hardware keys for example
8911 no private key components need be present and it might store extra data
8912 in the RSA structure, which cannot be accessed from bn_mod_exp.
8913 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8914 private key operations.
8917 *) Added support for SPARC Linux.
8920 *) pem_password_cb function type incompatibly changed from
8921 typedef int pem_password_cb(char *buf, int size, int rwflag);
8923 ....(char *buf, int size, int rwflag, void *userdata);
8924 so that applications can pass data to their callbacks:
8925 The PEM[_ASN1]_{read,write}... functions and macros now take an
8926 additional void * argument, which is just handed through whenever
8927 the password callback is called.
8928 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8930 New function SSL_CTX_set_default_passwd_cb_userdata.
8932 Compatibility note: As many C implementations push function arguments
8933 onto the stack in reverse order, the new library version is likely to
8934 interoperate with programs that have been compiled with the old
8935 pem_password_cb definition (PEM_whatever takes some data that
8936 happens to be on the stack as its last argument, and the callback
8937 just ignores this garbage); but there is no guarantee whatsoever that
8940 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8941 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8942 problems not only on Windows, but also on some Unix platforms.
8943 To avoid problematic command lines, these definitions are now in an
8944 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8945 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8948 *) MIPS III/IV assembler module is reimplemented.
8951 *) More DES library cleanups: remove references to srand/rand and
8952 delete an unused file.
8955 *) Add support for the the free Netwide assembler (NASM) under Win32,
8956 since not many people have MASM (ml) and it can be hard to obtain.
8957 This is currently experimental but it seems to work OK and pass all
8958 the tests. Check out INSTALL.W32 for info.
8961 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8962 without temporary keys kept an extra copy of the server key,
8963 and connections with temporary keys did not free everything in case
8967 *) New function RSA_check_key and new openssl rsa option -check
8968 for verifying the consistency of RSA keys.
8969 [Ulf Moeller, Bodo Moeller]
8971 *) Various changes to make Win32 compile work:
8972 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8973 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8974 comparison" warnings.
8975 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8978 *) Add a debugging option to PKCS#5 v2 key generation function: when
8979 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8980 derived keys are printed to stderr.
8983 *) Copy the flags in ASN1_STRING_dup().
8984 [Roman E. Pavlov <pre@mo.msk.ru>]
8986 *) The x509 application mishandled signing requests containing DSA
8987 keys when the signing key was also DSA and the parameters didn't match.
8989 It was supposed to omit the parameters when they matched the signing key:
8990 the verifying software was then supposed to automatically use the CA's
8991 parameters if they were absent from the end user certificate.
8993 Omitting parameters is no longer recommended. The test was also
8994 the wrong way round! This was probably due to unusual behaviour in
8995 EVP_cmp_parameters() which returns 1 if the parameters match.
8996 This meant that parameters were omitted when they *didn't* match and
8997 the certificate was useless. Certificates signed with 'ca' didn't have
8999 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9001 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9002 The interface is as follows:
9003 Applications can use
9004 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9005 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9006 "off" is now the default.
9007 The library internally uses
9008 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9009 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9010 to disable memory-checking temporarily.
9012 Some inconsistent states that previously were possible (and were
9013 even the default) are now avoided.
9015 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9016 with each memory chunk allocated; this is occasionally more helpful
9017 than just having a counter.
9019 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9021 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9025 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9026 which largely parallels "options", but is for changing API behaviour,
9027 whereas "options" are about protocol behaviour.
9028 Initial "mode" flags are:
9030 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9031 a single record has been written.
9032 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9033 retries use the same buffer location.
9034 (But all of the contents must be
9038 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9041 *) Fix problems with no-hmac etc.
9042 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9044 *) New functions RSA_get_default_method(), RSA_set_method() and
9045 RSA_get_method(). These allows replacement of RSA_METHODs without having
9046 to mess around with the internals of an RSA structure.
9049 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9050 Also really enable memory leak checks in openssl.c and in some
9052 [Chad C. Mulligan, Bodo Moeller]
9054 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9055 up the length of negative integers. This has now been simplified to just
9056 store the length when it is first determined and use it later, rather
9057 than trying to keep track of where data is copied and updating it to
9059 [Steve Henson, reported by Brien Wheeler
9060 <bwheeler@authentica-security.com>]
9062 *) Add a new function PKCS7_signatureVerify. This allows the verification
9063 of a PKCS#7 signature but with the signing certificate passed to the
9064 function itself. This contrasts with PKCS7_dataVerify which assumes the
9065 certificate is present in the PKCS#7 structure. This isn't always the
9066 case: certificates can be omitted from a PKCS#7 structure and be
9067 distributed by "out of band" means (such as a certificate database).
9070 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9071 function prototypes in pem.h, also change util/mkdef.pl to add the
9072 necessary function names.
9075 *) mk1mf.pl (used by Windows builds) did not properly read the
9076 options set by Configure in the top level Makefile, and Configure
9077 was not even able to write more than one option correctly.
9078 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9081 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9082 file to be loaded from a BIO or FILE pointer. The BIO version will
9083 for example allow memory BIOs to contain config info.
9086 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9087 Whoever hopes to achieve shared-library compatibility across versions
9088 must use this, not the compile-time macro.
9089 (Exercise 0.9.4: Which is the minimum library version required by
9091 Note: All this applies only to multi-threaded programs, others don't
9095 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9096 through a BIO pair triggered the default case, i.e.
9097 SSLerr(...,SSL_R_UNKNOWN_STATE).
9100 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9101 can use the SSL library even if none of the specific BIOs is
9105 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9106 for the encoded length.
9107 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9109 *) Add initial documentation of the X509V3 functions.
9112 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9113 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9114 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9115 secure PKCS#8 private key format with a high iteration count.
9118 *) Fix determination of Perl interpreter: A perl or perl5
9119 _directory_ in $PATH was also accepted as the interpreter.
9120 [Ralf S. Engelschall]
9122 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9123 wrong with it but it was very old and did things like calling
9124 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9128 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9129 to use the new extension code.
9132 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9133 with macros. This should make it easier to change their form, add extra
9134 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9138 *) Add to configuration table a new entry that can specify an alternative
9139 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9140 according to Mark Crispin <MRC@Panda.COM>.
9144 *) DES CBC did not update the IV. Weird.
9147 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9148 Changing the behaviour of the former might break existing programs --
9149 where IV updating is needed, des_ncbc_encrypt can be used.
9152 *) When bntest is run from "make test" it drives bc to check its
9153 calculations, as well as internally checking them. If an internal check
9154 fails, it needs to cause bc to give a non-zero result or make test carries
9155 on without noticing the failure. Fixed.
9158 *) DES library cleanups.
9161 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9162 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9163 ciphers. NOTE: although the key derivation function has been verified
9164 against some published test vectors it has not been extensively tested
9165 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9169 *) Instead of "mkdir -p", which is not fully portable, use new
9170 Perl script "util/mkdir-p.pl".
9173 *) Rewrite the way password based encryption (PBE) is handled. It used to
9174 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9175 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9176 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9177 the 'parameter' field of the AlgorithmIdentifier is passed to the
9178 underlying key generation function so it must do its own ASN1 parsing.
9179 This has also changed the EVP_PBE_CipherInit() function which now has a
9180 'parameter' argument instead of literal salt and iteration count values
9181 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9184 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9185 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9186 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9187 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9188 value was just used as a "magic string" and not used directly its
9189 value doesn't matter.
9192 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9196 *) "linux-sparc64" configuration (ultrapenguin).
9197 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9198 "linux-sparc" configuration.
9199 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9201 *) config now generates no-xxx options for missing ciphers.
9204 *) Support the EBCDIC character set (work in progress).
9205 File ebcdic.c not yet included because it has a different license.
9206 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9208 *) Support BS2000/OSD-POSIX.
9209 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9211 *) Make callbacks for key generation use void * instead of char *.
9214 *) Make S/MIME samples compile (not yet tested).
9217 *) Additional typesafe stacks.
9220 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9224 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9226 *) New configuration variant "sco5-gcc".
9228 *) Updated some demos.
9229 [Sean O Riordain, Wade Scholine]
9231 *) Add missing BIO_free at exit of pkcs12 application.
9234 *) Fix memory leak in conf.c.
9237 *) Updates for Win32 to assembler version of MD5.
9240 *) Set #! path to perl in apps/der_chop to where we found it
9241 instead of using a fixed path.
9244 *) SHA library changes for irix64-mips4-cc.
9247 *) Improvements for VMS support.
9251 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9253 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9254 This also avoids the problems with SC4.2 and unpatched SC5.
9255 [Andy Polyakov <appro@fy.chalmers.se>]
9257 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9258 These are required because of the typesafe stack would otherwise break
9259 existing code. If old code used a structure member which used to be STACK
9260 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9261 sk_num or sk_value it would produce an error because the num, data members
9262 are not present in STACK_OF. Now it just produces a warning. sk_set
9263 replaces the old method of assigning a value to sk_value
9264 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9265 that does this will no longer work (and should use sk_set instead) but
9266 this could be regarded as a "questionable" behaviour anyway.
9269 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9270 correctly handle encrypted S/MIME data.
9273 *) Change type of various DES function arguments from des_cblock
9274 (which means, in function argument declarations, pointer to char)
9275 to des_cblock * (meaning pointer to array with 8 char elements),
9276 which allows the compiler to do more typechecking; it was like
9277 that back in SSLeay, but with lots of ugly casts.
9279 Introduce new type const_des_cblock.
9282 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9283 problems: find RecipientInfo structure that matches recipient certificate
9284 and initialise the ASN1 structures properly based on passed cipher.
9287 *) Belatedly make the BN tests actually check the results.
9290 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9291 to and from BNs: it was completely broken. New compilation option
9292 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9293 key elements as negative integers.
9296 *) Reorganize and speed up MD5.
9297 [Andy Polyakov <appro@fy.chalmers.se>]
9300 [Richard Levitte <richard@levitte.org>]
9302 *) New option -out to asn1parse to allow the parsed structure to be
9303 output to a file. This is most useful when combined with the -strparse
9304 option to examine the output of things like OCTET STRINGS.
9307 *) Make SSL library a little more fool-proof by not requiring any longer
9308 that SSL_set_{accept,connect}_state be called before
9309 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9310 in many applications because usually everything *appeared* to work as
9311 intended anyway -- now it really works as intended).
9314 *) Move openssl.cnf out of lib/.
9317 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9318 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9319 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9320 [Ralf S. Engelschall]
9322 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9323 handle PKCS#7 enveloped data properly.
9324 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9326 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9327 copying pointers. The cert_st handling is changed by this in
9328 various ways (and thus what used to be known as ctx->default_cert
9329 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9330 any longer when s->cert does not give us what we need).
9331 ssl_cert_instantiate becomes obsolete by this change.
9332 As soon as we've got the new code right (possibly it already is?),
9333 we have solved a couple of bugs of the earlier code where s->cert
9334 was used as if it could not have been shared with other SSL structures.
9336 Note that using the SSL API in certain dirty ways now will result
9337 in different behaviour than observed with earlier library versions:
9338 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9339 does not influence s as it used to.
9341 In order to clean up things more thoroughly, inside SSL_SESSION
9342 we don't use CERT any longer, but a new structure SESS_CERT
9343 that holds per-session data (if available); currently, this is
9344 the peer's certificate chain and, for clients, the server's certificate
9345 and temporary key. CERT holds only those values that can have
9346 meaningful defaults in an SSL_CTX.
9349 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9350 from the internal representation. Various PKCS#7 fixes: remove some
9351 evil casts and set the enc_dig_alg field properly based on the signing
9355 *) Allow PKCS#12 password to be set from the command line or the
9356 environment. Let 'ca' get its config file name from the environment
9357 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9361 *) Allow certificate policies extension to use an IA5STRING for the
9362 organization field. This is contrary to the PKIX definition but
9363 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9367 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9368 without disallowing inline assembler and the like for non-pedantic builds.
9371 *) Support Borland C++ builder.
9372 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9377 *) SHA-1 cleanups and performance enhancements.
9378 [Andy Polyakov <appro@fy.chalmers.se>]
9380 *) Sparc v8plus assembler for the bignum library.
9381 [Andy Polyakov <appro@fy.chalmers.se>]
9383 *) Accept any -xxx and +xxx compiler options in Configure.
9386 *) Update HPUX configuration.
9389 *) Add missing sk_<type>_unshift() function to safestack.h
9390 [Ralf S. Engelschall]
9392 *) New function SSL_CTX_use_certificate_chain_file that sets the
9393 "extra_cert"s in addition to the certificate. (This makes sense
9394 only for "PEM" format files, as chains as a whole are not
9398 *) Support verify_depth from the SSL API.
9399 x509_vfy.c had what can be considered an off-by-one-error:
9400 Its depth (which was not part of the external interface)
9401 was actually counting the number of certificates in a chain;
9402 now it really counts the depth.
9405 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9406 instead of X509err, which often resulted in confusing error
9407 messages since the error codes are not globally unique
9408 (e.g. an alleged error in ssl3_accept when a certificate
9409 didn't match the private key).
9411 *) New function SSL_CTX_set_session_id_context that allows to set a default
9412 value (so that you don't need SSL_set_session_id_context for each
9413 connection using the SSL_CTX).
9416 *) OAEP decoding bug fix.
9419 *) Support INSTALL_PREFIX for package builders, as proposed by
9423 *) New Configure options "threads" and "no-threads". For systems
9424 where the proper compiler options are known (currently Solaris
9425 and Linux), "threads" is the default.
9428 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9431 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9432 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9433 such as /usr/local/bin.
9436 *) "make linux-shared" to build shared libraries.
9437 [Niels Poppe <niels@netbox.org>]
9439 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9442 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9443 extension adding in x509 utility.
9446 *) Remove NOPROTO sections and error code comments.
9449 *) Partial rewrite of the DEF file generator to now parse the ANSI
9453 *) New Configure options --prefix=DIR and --openssldir=DIR.
9456 *) Complete rewrite of the error code script(s). It is all now handled
9457 by one script at the top level which handles error code gathering,
9458 header rewriting and C source file generation. It should be much better
9459 than the old method: it now uses a modified version of Ulf's parser to
9460 read the ANSI prototypes in all header files (thus the old K&R definitions
9461 aren't needed for error creation any more) and do a better job of
9462 translating function codes into names. The old 'ASN1 error code imbedded
9463 in a comment' is no longer necessary and it doesn't use .err files which
9464 have now been deleted. Also the error code call doesn't have to appear all
9465 on one line (which resulted in some large lines...).
9468 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9471 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9472 0 (which usually indicates a closed connection), but continue reading.
9475 *) Fix some race conditions.
9478 *) Add support for CRL distribution points extension. Add Certificate
9479 Policies and CRL distribution points documentation.
9482 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9485 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9486 8 of keying material. Merlin has also confirmed interop with this fix
9487 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9488 [Merlin Hughes <merlin@baltimore.ie>]
9490 *) Fix lots of warnings.
9491 [Richard Levitte <levitte@stacken.kth.se>]
9493 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9494 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9495 [Richard Levitte <levitte@stacken.kth.se>]
9497 *) Fix problems with sizeof(long) == 8.
9498 [Andy Polyakov <appro@fy.chalmers.se>]
9500 *) Change functions to ANSI C.
9503 *) Fix typos in error codes.
9504 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9506 *) Remove defunct assembler files from Configure.
9509 *) SPARC v8 assembler BIGNUM implementation.
9510 [Andy Polyakov <appro@fy.chalmers.se>]
9512 *) Support for Certificate Policies extension: both print and set.
9513 Various additions to support the r2i method this uses.
9516 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9517 return a const string when you are expecting an allocated buffer.
9520 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9521 types DirectoryString and DisplayText.
9524 *) Add code to allow r2i extensions to access the configuration database,
9525 add an LHASH database driver and add several ctx helper functions.
9528 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9529 fail when they extended the size of a BIGNUM.
9532 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9533 support typesafe stack.
9536 *) Fix typo in SSL_[gs]et_options().
9537 [Nils Frostberg <nils@medcom.se>]
9539 *) Delete various functions and files that belonged to the (now obsolete)
9540 old X509V3 handling code.
9543 *) New Configure option "rsaref".
9546 *) Don't auto-generate pem.h.
9549 *) Introduce type-safe ASN.1 SETs.
9552 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9553 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9555 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9556 that links with OpenSSL (well at least cause lots of warnings), but fear
9557 not: the conversion is trivial, and it eliminates loads of evil casts. A
9558 few STACKed things have been converted already. Feel free to convert more.
9559 In the fullness of time, I'll do away with the STACK type altogether.
9562 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9563 specified in <certfile> by updating the entry in the index.txt file.
9564 This way one no longer has to edit the index.txt file manually for
9565 revoking a certificate. The -revoke option does the gory details now.
9566 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9568 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9569 `-text' option at all and this way the `-noout -text' combination was
9570 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9571 [Ralf S. Engelschall]
9573 *) Make sure a corresponding plain text error message exists for the
9574 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9575 verify callback function determined that a certificate was revoked.
9576 [Ralf S. Engelschall]
9578 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9579 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9580 all available cipers including rc5, which was forgotten until now.
9581 In order to let the testing shell script know which algorithms
9582 are available, a new (up to now undocumented) command
9583 "openssl list-cipher-commands" is used.
9586 *) Bugfix: s_client occasionally would sleep in select() when
9587 it should have checked SSL_pending() first.
9590 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9591 the raw DSA values prior to ASN.1 encoding.
9594 *) Tweaks to Configure
9595 [Niels Poppe <niels@netbox.org>]
9597 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9601 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9604 *) New config option to avoid instructions that are illegal on the 80386.
9605 The default code is faster, but requires at least a 486.
9608 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9609 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9610 same as SSL2_VERSION anyway.
9613 *) New "-showcerts" option for s_client.
9616 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9617 application. Various cleanups and fixes.
9620 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9621 modify error routines to work internally. Add error codes and PBE init
9622 to library startup routines.
9625 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9626 packing functions to asn1 and evp. Changed function names and error
9627 codes along the way.
9630 *) PKCS12 integration: and so it begins... First of several patches to
9631 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9632 objects to objects.h
9635 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9636 and display support for Thawte strong extranet extension.
9639 *) Add LinuxPPC support.
9640 [Jeff Dubrule <igor@pobox.org>]
9642 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9643 bn_div_words in alpha.s.
9644 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9646 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9647 OAEP isn't supported when OpenSSL is built with RSAref.
9648 [Ulf Moeller <ulf@fitug.de>]
9650 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9651 so they no longer are missing under -DNOPROTO.
9652 [Soren S. Jorvang <soren@t.dk>]
9655 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9657 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9658 doesn't work when the session is reused. Coming soon!
9661 *) Fix a security hole, that allows sessions to be reused in the wrong
9662 context thus bypassing client cert protection! All software that uses
9663 client certs and session caches in multiple contexts NEEDS PATCHING to
9664 allow session reuse! A fuller solution is in the works.
9665 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9667 *) Some more source tree cleanups (removed obsolete files
9668 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9669 permission on "config" script to be executable) and a fix for the INSTALL
9671 [Ulf Moeller <ulf@fitug.de>]
9673 *) Remove some legacy and erroneous uses of malloc, free instead of
9675 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9677 *) Make rsa_oaep_test return non-zero on error.
9678 [Ulf Moeller <ulf@fitug.de>]
9680 *) Add support for native Solaris shared libraries. Configure
9681 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9682 if someone would make that last step automatic.
9683 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9685 *) ctx_size was not built with the right compiler during "make links". Fixed.
9688 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9689 except NULL ciphers". This means the default cipher list will no longer
9690 enable NULL ciphers. They need to be specifically enabled e.g. with
9691 the string "DEFAULT:eNULL".
9694 *) Fix to RSA private encryption routines: if p < q then it would
9695 occasionally produce an invalid result. This will only happen with
9696 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9699 *) Be less restrictive and allow also `perl util/perlpath.pl
9700 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9701 because this way one can also use an interpreter named `perl5' (which is
9702 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9703 installed as `perl').
9704 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9706 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9707 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9709 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9710 advapi32.lib to Win32 build and change the pem test comparision
9711 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9712 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9713 and crypto/des/ede_cbcm_enc.c.
9716 *) DES quad checksum was broken on big-endian architectures. Fixed.
9719 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9720 Win32 test batch file so it (might) work again. The Win32 test batch file
9721 is horrible: I feel ill....
9724 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9725 in e_os.h. Audit of header files to check ANSI and non ANSI
9726 sections: 10 functions were absent from non ANSI section and not exported
9727 from Windows DLLs. Fixed up libeay.num for new functions.
9730 *) Make `openssl version' output lines consistent.
9731 [Ralf S. Engelschall]
9733 *) Fix Win32 symbol export lists for BIO functions: Added
9734 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9735 to ms/libeay{16,32}.def.
9736 [Ralf S. Engelschall]
9738 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9739 fine under Unix and passes some trivial tests I've now added. But the
9740 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9741 added to make sure no one expects that this stuff really works in the
9742 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9743 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9745 [Ralf S. Engelschall]
9747 *) Fix the generation of two part addresses in perl.
9748 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9750 *) Add config entry for Linux on MIPS.
9751 [John Tobey <jtobey@channel1.com>]
9753 *) Make links whenever Configure is run, unless we are on Windoze.
9756 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9757 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9761 *) Add a useful kludge to allow package maintainers to specify compiler and
9762 other platforms details on the command line without having to patch the
9763 Configure script everytime: One now can use ``perl Configure
9764 <id>:<details>'', i.e. platform ids are allowed to have details appended
9765 to them (seperated by colons). This is treated as there would be a static
9766 pre-configured entry in Configure's %table under key <id> with value
9767 <details> and ``perl Configure <id>'' is called. So, when you want to
9768 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9769 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9770 now, which overrides the FreeBSD-elf entry on-the-fly.
9771 [Ralf S. Engelschall]
9773 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9776 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9777 on the `perl Configure ...' command line. This way one can compile
9778 OpenSSL libraries with Position Independent Code (PIC) which is needed
9779 for linking it into DSOs.
9780 [Ralf S. Engelschall]
9782 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9786 *) Cleaned up the LICENSE document: The official contact for any license
9787 questions now is the OpenSSL core team under openssl-core@openssl.org.
9788 And add a paragraph about the dual-license situation to make sure people
9789 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9790 to the OpenSSL toolkit.
9791 [Ralf S. Engelschall]
9793 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9794 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9795 Additonally cleaned up the `make links' target: Remove unnecessary
9796 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9797 to speed processing and no longer clutter the display with confusing
9798 stuff. Instead only the actually done links are displayed.
9799 [Ralf S. Engelschall]
9801 *) Permit null encryption ciphersuites, used for authentication only. It used
9802 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9803 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9807 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9808 signed attributes when verifying signatures (this would break them),
9809 the detached data encoding was wrong and public keys obtained using
9810 X509_get_pubkey() weren't freed.
9813 *) Add text documentation for the BUFFER functions. Also added a work around
9814 to a Win95 console bug. This was triggered by the password read stuff: the
9815 last character typed gets carried over to the next fread(). If you were
9816 generating a new cert request using 'req' for example then the last
9817 character of the passphrase would be CR which would then enter the first
9821 *) Added the new `Includes OpenSSL Cryptography Software' button as
9822 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9823 button and can be used by applications based on OpenSSL to show the
9824 relationship to the OpenSSL project.
9825 [Ralf S. Engelschall]
9827 *) Remove confusing variables in function signatures in files
9828 ssl/ssl_lib.c and ssl/ssl.h.
9829 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9831 *) Don't install bss_file.c under PREFIX/include/
9832 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9834 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9835 functions that return function pointers and has support for NT specific
9836 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9837 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9838 unsigned to signed types: this was killing the Win32 compile.
9841 *) Add new certificate file to stack functions,
9842 SSL_add_dir_cert_subjects_to_stack() and
9843 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9844 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9845 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9846 This means that Apache-SSL and similar packages don't have to mess around
9847 to add as many CAs as they want to the preferred list.
9850 *) Experiment with doxygen documentation. Currently only partially applied to
9852 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9853 openssl.doxy as the configuration file.
9856 *) Get rid of remaining C++-style comments which strict C compilers hate.
9857 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9859 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9860 compiled in by default: it has problems with large keys.
9863 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9864 DH private keys and/or callback functions which directly correspond to
9865 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9866 is needed for applications which have to configure certificates on a
9867 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9869 For the RSA certificate situation is makes no difference, but
9870 for the DSA certificate situation this fixes the "no shared cipher"
9871 problem where the OpenSSL cipher selection procedure failed because the
9872 temporary keys were not overtaken from the context and the API provided
9873 no way to reconfigure them.
9874 The new functions now let applications reconfigure the stuff and they
9875 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9876 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9877 non-public-API function ssl_cert_instantiate() is used as a helper
9878 function and also to reduce code redundancy inside ssl_rsa.c.
9879 [Ralf S. Engelschall]
9881 *) Move s_server -dcert and -dkey options out of the undocumented feature
9882 area because they are useful for the DSA situation and should be
9883 recognized by the users.
9884 [Ralf S. Engelschall]
9886 *) Fix the cipher decision scheme for export ciphers: the export bits are
9887 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9888 SSL_EXP_MASK. So, the original variable has to be used instead of the
9889 already masked variable.
9890 [Richard Levitte <levitte@stacken.kth.se>]
9892 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9893 [Richard Levitte <levitte@stacken.kth.se>]
9895 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9896 from `int' to `unsigned int' because it's a length and initialized by
9897 EVP_DigestFinal() which expects an `unsigned int *'.
9898 [Richard Levitte <levitte@stacken.kth.se>]
9900 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9901 script. Instead use the usual Shell->Perl transition trick.
9902 [Ralf S. Engelschall]
9904 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9905 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9906 -noout -modulus' as it's already the case for `openssl rsa -noout
9907 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9908 currently the public key is printed (a decision which was already done by
9909 `openssl dsa -modulus' in the past) which serves a similar purpose.
9910 Additionally the NO_RSA no longer completely removes the whole -modulus
9911 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9913 [Ralf S. Engelschall]
9915 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9916 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9917 [Arne Ansper <arne@ats.cyber.ee>]
9919 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9920 to be added. Now both 'req' and 'ca' can use new objects defined in the
9924 *) Add cool BIO that does syslog (or event log on NT).
9925 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9927 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9928 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9929 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9930 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9933 *) Add preliminary config info for new extension code.
9936 *) Make RSA_NO_PADDING really use no padding.
9937 [Ulf Moeller <ulf@fitug.de>]
9939 *) Generate errors when private/public key check is done.
9942 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9943 for some CRL extensions and new objects added.
9946 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9947 key usage extension and fuller support for authority key id.
9950 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9951 padding method for RSA, which is recommended for new applications in PKCS
9952 #1 v2.0 (RFC 2437, October 1998).
9953 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9954 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9955 against Bleichbacher's attack on RSA.
9956 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9959 *) Updates to the new SSL compression code
9960 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9962 *) Fix so that the version number in the master secret, when passed
9963 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9964 (because the server will not accept higher), that the version number
9965 is 0x03,0x01, not 0x03,0x00
9966 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9968 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9969 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9970 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9973 *) Support for RAW extensions where an arbitrary extension can be
9974 created by including its DER encoding. See apps/openssl.cnf for
9978 *) Make sure latest Perl versions don't interpret some generated C array
9979 code as Perl array code in the crypto/err/err_genc.pl script.
9980 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9982 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9983 not many people have the assembler. Various Win32 compilation fixes and
9984 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9988 *) Modify configure script 'Configure' to automatically create crypto/date.h
9989 file under Win32 and also build pem.h from pem.org. New script
9990 util/mkfiles.pl to create the MINFO file on environments that can't do a
9991 'make files': perl util/mkfiles.pl >MINFO should work.
9994 *) Major rework of DES function declarations, in the pursuit of correctness
9995 and purity. As a result, many evil casts evaporated, and some weirdness,
9996 too. You may find this causes warnings in your code. Zapping your evil
9997 casts will probably fix them. Mostly.
10000 *) Fix for a typo in asn1.h. Bug fix to object creation script
10001 obj_dat.pl. It considered a zero in an object definition to mean
10002 "end of object": none of the objects in objects.h have any zeros
10003 so it wasn't spotted.
10004 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10006 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10007 Masking (CBCM). In the absence of test vectors, the best I have been able
10008 to do is check that the decrypt undoes the encrypt, so far. Send me test
10009 vectors if you have them.
10012 *) Correct calculation of key length for export ciphers (too much space was
10013 allocated for null ciphers). This has not been tested!
10016 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10017 message is now correct (it understands "crypto" and "ssl" on its
10018 command line). There is also now an "update" option. This will update
10019 the util/ssleay.num and util/libeay.num files with any new functions.
10021 perl util/mkdef.pl crypto ssl update
10022 it will update them.
10025 *) Overhauled the Perl interface (perl/*):
10026 - ported BN stuff to OpenSSL's different BN library
10027 - made the perl/ source tree CVS-aware
10028 - renamed the package from SSLeay to OpenSSL (the files still contain
10029 their history because I've copied them in the repository)
10030 - removed obsolete files (the test scripts will be replaced
10031 by better Test::Harness variants in the future)
10032 [Ralf S. Engelschall]
10034 *) First cut for a very conservative source tree cleanup:
10035 1. merge various obsolete readme texts into doc/ssleay.txt
10036 where we collect the old documents and readme texts.
10037 2. remove the first part of files where I'm already sure that we no
10038 longer need them because of three reasons: either they are just temporary
10039 files which were left by Eric or they are preserved original files where
10040 I've verified that the diff is also available in the CVS via "cvs diff
10041 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10042 the crypto/md/ stuff).
10043 [Ralf S. Engelschall]
10045 *) More extension code. Incomplete support for subject and issuer alt
10046 name, issuer and authority key id. Change the i2v function parameters
10047 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10048 what that's for :-) Fix to ASN1 macro which messed up
10049 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10052 *) Preliminary support for ENUMERATED type. This is largely copied from the
10056 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10057 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10059 *) Make sure `make rehash' target really finds the `openssl' program.
10060 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10062 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10063 like to hear about it if this slows down other processors.
10066 *) Add CygWin32 platform information to Configure script.
10067 [Alan Batie <batie@aahz.jf.intel.com>]
10069 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10070 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10072 *) New program nseq to manipulate netscape certificate sequences
10075 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10079 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10080 but the BN code had some problems that would cause failures when
10081 doing certificate verification and some other functions.
10082 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10084 *) Add ASN1 and PEM code to support netscape certificate sequences.
10087 *) Add ASN1 and PEM code to support netscape certificate sequences.
10090 *) Add several PKIX and private extended key usage OIDs.
10093 *) Modify the 'ca' program to handle the new extension code. Modify
10094 openssl.cnf for new extension format, add comments.
10097 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10098 and add a sample to openssl.cnf so req -x509 now adds appropriate
10102 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10103 error code, add initial support to X509_print() and x509 application.
10106 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10107 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10108 stuff is currently isolated and isn't even compiled yet.
10111 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10112 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10113 Removed the versions check from X509 routines when loading extensions:
10114 this allows certain broken certificates that don't set the version
10115 properly to be processed.
10118 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10119 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10120 can still be regenerated with "make depend".
10123 *) Spelling mistake in C version of CAST-128.
10124 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10126 *) Changes to the error generation code. The perl script err-code.pl
10127 now reads in the old error codes and retains the old numbers, only
10128 adding new ones if necessary. It also only changes the .err files if new
10129 codes are added. The makefiles have been modified to only insert errors
10130 when needed (to avoid needlessly modifying header files). This is done
10131 by only inserting errors if the .err file is newer than the auto generated
10132 C file. To rebuild all the error codes from scratch (the old behaviour)
10133 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10134 or delete all the .err files.
10137 *) CAST-128 was incorrectly implemented for short keys. The C version has
10138 been fixed, but is untested. The assembler versions are also fixed, but
10139 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10140 to regenerate it if needed.
10141 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10142 Hagino <itojun@kame.net>]
10144 *) File was opened incorrectly in randfile.c.
10145 [Ulf Möller <ulf@fitug.de>]
10147 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10148 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10149 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10150 al: it's just almost always a UTCTime. Note this patch adds new error
10151 codes so do a "make errors" if there are problems.
10154 *) Correct Linux 1 recognition in config.
10155 [Ulf Möller <ulf@fitug.de>]
10157 *) Remove pointless MD5 hash when using DSA keys in ca.
10158 [Anonymous <nobody@replay.com>]
10160 *) Generate an error if given an empty string as a cert directory. Also
10161 generate an error if handed NULL (previously returned 0 to indicate an
10162 error, but didn't set one).
10163 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10165 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10168 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10169 parameters. This was causing a warning which killed off the Win32 compile.
10172 *) Remove C++ style comments from crypto/bn/bn_local.h.
10173 [Neil Costigan <neil.costigan@celocom.com>]
10175 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10176 based on a text string, looking up short and long names and finally
10177 "dot" format. The "dot" format stuff didn't work. Added new function
10178 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10179 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10180 OID is not part of the table.
10183 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10184 X509_LOOKUP_by_alias().
10187 *) Sort openssl functions by name.
10190 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10191 encryption from sample DSA keys (in case anyone is interested the password
10195 *) Make _all_ *_free functions accept a NULL pointer.
10196 [Frans Heymans <fheymans@isaserver.be>]
10198 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10200 [Anonymous <nobody@replay.com>]
10202 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10203 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10205 *) Don't blow it for numeric -newkey arguments to apps/req.
10206 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10208 *) Temp key "for export" tests were wrong in s3_srvr.c.
10209 [Anonymous <nobody@replay.com>]
10211 *) Add prototype for temp key callback functions
10212 SSL_CTX_set_tmp_{rsa,dh}_callback().
10215 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10216 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10219 *) X509_name_add_entry() freed the wrong thing after an error.
10220 [Arne Ansper <arne@ats.cyber.ee>]
10222 *) rsa_eay.c would attempt to free a NULL context.
10223 [Arne Ansper <arne@ats.cyber.ee>]
10225 *) BIO_s_socket() had a broken should_retry() on Windoze.
10226 [Arne Ansper <arne@ats.cyber.ee>]
10228 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10229 [Arne Ansper <arne@ats.cyber.ee>]
10231 *) Make sure the already existing X509_STORE->depth variable is initialized
10232 in X509_STORE_new(), but document the fact that this variable is still
10233 unused in the certificate verification process.
10234 [Ralf S. Engelschall]
10236 *) Fix the various library and apps files to free up pkeys obtained from
10237 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10240 *) Fix reference counting in X509_PUBKEY_get(). This makes
10241 demos/maurice/example2.c work, amongst others, probably.
10242 [Steve Henson and Ben Laurie]
10244 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10245 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10246 are no longer created. This way we have a single and consistent command
10247 line interface `openssl <command>', similar to `cvs <command>'.
10248 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10250 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10251 BIT STRING wrapper always have zero unused bits.
10254 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10257 *) Make the top-level INSTALL documentation easier to understand.
10260 *) Makefiles updated to exit if an error occurs in a sub-directory
10261 make (including if user presses ^C) [Paul Sutton]
10263 *) Make Montgomery context stuff explicit in RSA data structure.
10266 *) Fix build order of pem and err to allow for generated pem.h.
10269 *) Fix renumbering bug in X509_NAME_delete_entry().
10272 *) Enhanced the err-ins.pl script so it makes the error library number
10273 global and can add a library name. This is needed for external ASN1 and
10274 other error libraries.
10277 *) Fixed sk_insert which never worked properly.
10280 *) Fix ASN1 macros so they can handle indefinite length construted
10281 EXPLICIT tags. Some non standard certificates use these: they can now
10285 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10286 into a single doc/ssleay.txt bundle. This way the information is still
10287 preserved but no longer messes up this directory. Now it's new room for
10288 the new set of documenation files.
10289 [Ralf S. Engelschall]
10291 *) SETs were incorrectly DER encoded. This was a major pain, because they
10292 shared code with SEQUENCEs, which aren't coded the same. This means that
10293 almost everything to do with SETs or SEQUENCEs has either changed name or
10294 number of arguments.
10295 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10297 *) Fix test data to work with the above.
10300 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10301 was already fixed by Eric for 0.9.1 it seems.
10302 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10304 *) Autodetect FreeBSD3.
10307 *) Fix various bugs in Configure. This affects the following platforms:
10311 unixware-2.0-pentium
10315 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10316 before they are needed.
10319 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10323 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10325 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10326 changed SSLeay to OpenSSL in version strings.
10327 [Ralf S. Engelschall]
10329 *) Some fixups to the top-level documents.
10332 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10333 because the symlink to include/ was missing.
10334 [Ralf S. Engelschall]
10336 *) Incorporated the popular no-RSA/DSA-only patches
10337 which allow to compile a RSA-free SSLeay.
10338 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10340 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10341 when "ssleay" is still not found.
10342 [Ralf S. Engelschall]
10344 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10345 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10347 *) Updated the README file.
10348 [Ralf S. Engelschall]
10350 *) Added various .cvsignore files in the CVS repository subdirs
10351 to make a "cvs update" really silent.
10352 [Ralf S. Engelschall]
10354 *) Recompiled the error-definition header files and added
10355 missing symbols to the Win32 linker tables.
10356 [Ralf S. Engelschall]
10358 *) Cleaned up the top-level documents;
10359 o new files: CHANGES and LICENSE
10360 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10361 o merged COPYRIGHT into LICENSE
10362 o removed obsolete TODO file
10363 o renamed MICROSOFT to INSTALL.W32
10364 [Ralf S. Engelschall]
10366 *) Removed dummy files from the 0.9.1b source tree:
10367 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10368 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10369 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10370 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10371 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10372 [Ralf S. Engelschall]
10374 *) Added various platform portability fixes.
10377 *) The Genesis of the OpenSSL rpject:
10378 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10379 Young and Tim J. Hudson created while they were working for C2Net until
10381 [The OpenSSL Project]
10384 Changes between 0.9.0b and 0.9.1b [not released]
10386 *) Updated a few CA certificates under certs/
10389 *) Changed some BIGNUM api stuff.
10392 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10393 DGUX x86, Linux Alpha, etc.
10396 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10397 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10401 *) Add -strparse option to asn1pars program which parses nested
10403 [Dr Stephen Henson <shenson@bigfoot.com>]
10405 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10408 *) DSA fix for "ca" program.
10411 *) Added "-genkey" option to "dsaparam" program.
10414 *) Added RIPE MD160 (rmd160) message digest.
10417 *) Added -a (all) option to "ssleay version" command.
10420 *) Added PLATFORM define which is the id given to Configure.
10423 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10426 *) Extended the ASN.1 parser routines.
10429 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10432 *) Added a BN_CTX to the BN library.
10435 *) Fixed the weak key values in DES library
10438 *) Changed API in EVP library for cipher aliases.
10441 *) Added support for RC2/64bit cipher.
10444 *) Converted the lhash library to the crypto/mem.c functions.
10447 *) Added more recognized ASN.1 object ids.
10450 *) Added more RSA padding checks for SSL/TLS.
10453 *) Added BIO proxy/filter functionality.
10456 *) Added extra_certs to SSL_CTX which can be used
10457 send extra CA certificates to the client in the CA cert chain sending
10458 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10461 *) Now Fortezza is denied in the authentication phase because
10462 this is key exchange mechanism is not supported by SSLeay at all.
10465 *) Additional PKCS1 checks.
10468 *) Support the string "TLSv1" for all TLS v1 ciphers.
10471 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10472 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10475 *) Fixed a few memory leaks.
10478 *) Fixed various code and comment typos.
10481 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10482 bytes sent in the client random.
10483 [Edward Bishop <ebishop@spyglass.com>]
projects / FreeBSD / stable / 10.git / blob