5 Changes between 1.0.1j and 1.0.2 [xx XXX xxxx]
9 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
10 sends a carefully crafted handshake message, to cause OpenSSL to fail
11 to free up to 64k of memory causing a memory leak. This could be
12 exploited in a Denial Of Service attack. This issue affects OpenSSL
13 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
14 whether SRTP is used or configured. Implementations of OpenSSL that
15 have been compiled with OPENSSL_NO_SRTP defined are not affected.
17 The fix was developed by the OpenSSL team.
21 *) Session Ticket Memory Leak.
23 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
24 integrity of that ticket is first verified. In the event of a session
25 ticket integrity check failing, OpenSSL will fail to free memory
26 causing a memory leak. By sending a large number of invalid session
27 tickets an attacker could exploit this issue in a Denial Of Service
32 *) Build option no-ssl3 is incomplete.
34 When OpenSSL is configured with "no-ssl3" as a build option, servers
35 could accept and complete a SSL 3.0 handshake, and clients could be
36 configured to send them.
38 [Akamai and the OpenSSL team]
40 *) Add support for TLS_FALLBACK_SCSV.
41 Client applications doing fallback retries should call
42 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
44 [Adam Langley, Bodo Moeller]
46 *) Tighten client-side session ticket handling during renegotiation:
47 ensure that the client only accepts a session ticket if the server sends
48 the extension anew in the ServerHello. Previously, a TLS client would
49 reuse the old extension state and thus accept a session ticket if one was
50 announced in the initial ServerHello.
53 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
54 (other platforms pending).
55 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
57 *) Add support for the SignedCertificateTimestampList certificate and
58 OCSP response extensions from RFC6962.
61 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
62 for corner cases. (Certain input points at infinity could lead to
63 bogus results, with non-infinity inputs mapped to infinity too.)
66 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
67 This covers AES, SHA256/512 and GHASH. "Initial" means that most
68 common cases are optimized and there still is room for further
69 improvements. Vector Permutation AES for Altivec is also added.
72 *) Add support for little-endian ppc64 Linux target.
75 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
76 SHA1, SHA256 and GHASH. "Initial" means that most common cases
77 are optimized and there still is room for further improvements.
78 Both 32- and 64-bit modes are supported.
79 [Andy Polyakov, Ard Biesheuvel (Linaro)]
81 *) Improved ARMv7 NEON support.
84 *) Support for SPARC Architecture 2011 crypto extensions, first
85 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
86 SHA256/512, MD5, GHASH and modular exponentiation.
87 [Andy Polyakov, David Miller]
89 *) Accelerated modular exponentiation for Intel processors, a.k.a.
91 [Shay Gueron & Vlad Krasnov (Intel Corp)]
93 *) Support for new and upcoming Intel processors, including AVX2,
94 BMI and SHA ISA extensions. This includes additional "stitched"
95 implementations, AESNI-SHA256 and GCM, and multi-buffer support
98 This work was sponsored by Intel Corp.
101 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
102 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
103 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
106 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
107 this fixes a limiation in previous versions of OpenSSL.
110 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
111 MGF1 digest and OAEP label.
114 *) Add EVP support for key wrapping algorithms, to avoid problems with
115 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
116 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
117 algorithms and include tests cases.
120 *) Add functions to allocate and set the fields of an ECDSA_METHOD
122 [Douglas E. Engert, Steve Henson]
124 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
125 difference in days and seconds between two tm or ASN1_TIME structures.
128 *) Add -rev test option to s_server to just reverse order of characters
129 received by client and send back to server. Also prints an abbreviated
130 summary of the connection parameters.
133 *) New option -brief for s_client and s_server to print out a brief summary
134 of connection parameters.
137 *) Add callbacks for arbitrary TLS extensions.
138 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
140 *) New option -crl_download in several openssl utilities to download CRLs
141 from CRLDP extension in certificates.
144 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
147 *) New function X509_CRL_diff to generate a delta CRL from the difference
148 of two full CRLs. Add support to "crl" utility.
151 *) New functions to set lookup_crls function and to retrieve
152 X509_STORE from X509_STORE_CTX.
155 *) Print out deprecated issuer and subject unique ID fields in
159 *) Extend OCSP I/O functions so they can be used for simple general purpose
160 HTTP as well as OCSP. New wrapper function which can be used to download
161 CRLs using the OCSP API.
164 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
167 *) SSL_CONF* functions. These provide a common framework for application
168 configuration using configuration files or command lines.
171 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
172 message callback and prints the results. Needs compile time option
173 "enable-ssl-trace". New options to s_client and s_server to enable
177 *) New ctrl and macro to retrieve supported points extensions.
178 Print out extension in s_server and s_client.
181 *) New functions to retrieve certificate signature and signature
185 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
189 *) New Suite B modes for TLS code. These use and enforce the requirements
190 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
191 only use Suite B curves. The Suite B modes can be set by using the
192 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
195 *) New chain verification flags for Suite B levels of security. Check
196 algorithms are acceptable when flags are set in X509_verify_cert.
199 *) Make tls1_check_chain return a set of flags indicating checks passed
200 by a certificate chain. Add additional tests to handle client
201 certificates: checks for matching certificate type and issuer name
205 *) If an attempt is made to use a signature algorithm not in the peer
206 preference list abort the handshake. If client has no suitable
207 signature algorithms in response to a certificate request do not
211 *) If server EC tmp key is not in client preference list abort handshake.
214 *) Add support for certificate stores in CERT structure. This makes it
215 possible to have different stores per SSL structure or one store in
216 the parent SSL_CTX. Include distint stores for certificate chain
217 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
218 to build and store a certificate chain in CERT structure: returing
219 an error if the chain cannot be built: this will allow applications
220 to test if a chain is correctly configured.
222 Note: if the CERT based stores are not set then the parent SSL_CTX
223 store is used to retain compatibility with existing behaviour.
227 *) New function ssl_set_client_disabled to set a ciphersuite disabled
228 mask based on the current session, check mask when sending client
229 hello and checking the requested ciphersuite.
232 *) New ctrls to retrieve and set certificate types in a certificate
233 request message. Print out received values in s_client. If certificate
234 types is not set with custom values set sensible values based on
235 supported signature algorithms.
238 *) Support for distinct client and server supported signature algorithms.
241 *) Add certificate callback. If set this is called whenever a certificate
242 is required by client or server. An application can decide which
243 certificate chain to present based on arbitrary criteria: for example
244 supported signature algorithms. Add very simple example to s_server.
245 This fixes many of the problems and restrictions of the existing client
246 certificate callback: for example you can now clear an existing
247 certificate and specify the whole chain.
250 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
251 the certificate can be used for (if anything). Set valid_flags field
252 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
253 to have similar checks in it.
255 Add new "cert_flags" field to CERT structure and include a "strict mode".
256 This enforces some TLS certificate requirements (such as only permitting
257 certificate signature algorithms contained in the supported algorithms
258 extension) which some implementations ignore: this option should be used
259 with caution as it could cause interoperability issues.
262 *) Update and tidy signature algorithm extension processing. Work out
263 shared signature algorithms based on preferences and peer algorithms
264 and print them out in s_client and s_server. Abort handshake if no
265 shared signature algorithms.
268 *) Add new functions to allow customised supported signature algorithms
269 for SSL and SSL_CTX structures. Add options to s_client and s_server
273 *) New function SSL_certs_clear() to delete all references to certificates
274 from an SSL structure. Before this once a certificate had been added
275 it couldn't be removed.
278 *) Integrate hostname, email address and IP address checking with certificate
279 verification. New verify options supporting checking in opensl utility.
282 *) Fixes and wildcard matching support to hostname and email checking
283 functions. Add manual page.
284 [Florian Weimer (Red Hat Product Security Team)]
286 *) New functions to check a hostname email or IP address against a
287 certificate. Add options x509 utility to print results of checks against
291 *) Fix OCSP checking.
292 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
294 *) Initial experimental support for explicitly trusted non-root CAs.
295 OpenSSL still tries to build a complete chain to a root but if an
296 intermediate CA has a trust setting included that is used. The first
297 setting is used: whether to trust (e.g., -addtrust option to the x509
301 *) Add -trusted_first option which attempts to find certificates in the
302 trusted store even if an untrusted chain is also supplied.
305 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
306 platform support for Linux and Android.
309 *) Support for linux-x32, ILP32 environment in x86_64 framework.
312 *) Experimental multi-implementation support for FIPS capable OpenSSL.
313 When in FIPS mode the approved implementations are used as normal,
314 when not in FIPS mode the internal unapproved versions are used instead.
315 This means that the FIPS capable OpenSSL isn't forced to use the
316 (often lower perfomance) FIPS implementations outside FIPS mode.
319 *) Transparently support X9.42 DH parameters when calling
320 PEM_read_bio_DHparameters. This means existing applications can handle
321 the new parameter format automatically.
324 *) Initial experimental support for X9.42 DH parameter format: mainly
325 to support use of 'q' parameter for RFC5114 parameters.
328 *) Add DH parameters from RFC5114 including test data to dhtest.
331 *) Support for automatic EC temporary key parameter selection. If enabled
332 the most preferred EC parameters are automatically used instead of
333 hardcoded fixed parameters. Now a server just has to call:
334 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
335 support ECDH and use the most appropriate parameters.
338 *) Enhance and tidy EC curve and point format TLS extension code. Use
339 static structures instead of allocation if default values are used.
340 New ctrls to set curves we wish to support and to retrieve shared curves.
341 Print out shared curves in s_server. New options to s_server and s_client
342 to set list of supported curves.
345 *) New ctrls to retrieve supported signature algorithms and
346 supported curve values as an array of NIDs. Extend openssl utility
347 to print out received values.
350 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
351 between NIDs and the more common NIST names such as "P-256". Enhance
352 ecparam utility and ECC method to recognise the NIST names for curves.
355 *) Enhance SSL/TLS certificate chain handling to support different
356 chains for each certificate instead of one chain in the parent SSL_CTX.
359 *) Support for fixed DH ciphersuite client authentication: where both
360 server and client use DH certificates with common parameters.
363 *) Support for fixed DH ciphersuites: those requiring DH server
367 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
369 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
370 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
371 X509_CINF_get_signature were reverted post internal team review.
373 Changes between 1.0.1j and 1.0.1k [xx XXX xxxx]
375 *) Tighten client-side session ticket handling during renegotiation:
376 ensure that the client only accepts a session ticket if the server sends
377 the extension anew in the ServerHello. Previously, a TLS client would
378 reuse the old extension state and thus accept a session ticket if one was
379 announced in the initial ServerHello.
382 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
386 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
387 sends a carefully crafted handshake message, to cause OpenSSL to fail
388 to free up to 64k of memory causing a memory leak. This could be
389 exploited in a Denial Of Service attack. This issue affects OpenSSL
390 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
391 whether SRTP is used or configured. Implementations of OpenSSL that
392 have been compiled with OPENSSL_NO_SRTP defined are not affected.
394 The fix was developed by the OpenSSL team.
398 *) Session Ticket Memory Leak.
400 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
401 integrity of that ticket is first verified. In the event of a session
402 ticket integrity check failing, OpenSSL will fail to free memory
403 causing a memory leak. By sending a large number of invalid session
404 tickets an attacker could exploit this issue in a Denial Of Service
409 *) Build option no-ssl3 is incomplete.
411 When OpenSSL is configured with "no-ssl3" as a build option, servers
412 could accept and complete a SSL 3.0 handshake, and clients could be
413 configured to send them.
415 [Akamai and the OpenSSL team]
417 *) Add support for TLS_FALLBACK_SCSV.
418 Client applications doing fallback retries should call
419 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
421 [Adam Langley, Bodo Moeller]
423 *) Add additional DigestInfo checks.
425 Reencode DigestInto in DER and check against the original when
426 verifying RSA signature: this will reject any improperly encoded
427 DigestInfo structures.
429 Note: this is a precautionary measure and no attacks are currently known.
433 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
435 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
436 SRP code can be overrun an internal buffer. Add sanity check that
437 g, A, B < N to SRP code.
439 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
440 Group for discovering this issue.
444 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
445 TLS 1.0 instead of higher protocol versions when the ClientHello message
446 is badly fragmented. This allows a man-in-the-middle attacker to force a
447 downgrade to TLS 1.0 even if both the server and the client support a
448 higher protocol version, by modifying the client's TLS records.
450 Thanks to David Benjamin and Adam Langley (Google) for discovering and
451 researching this issue.
455 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
456 to a denial of service attack. A malicious server can crash the client
457 with a null pointer dereference (read) by specifying an anonymous (EC)DH
458 ciphersuite and sending carefully crafted handshake messages.
460 Thanks to Felix Gröbert (Google) for discovering and researching this
465 *) By sending carefully crafted DTLS packets an attacker could cause openssl
466 to leak memory. This can be exploited through a Denial of Service attack.
467 Thanks to Adam Langley for discovering and researching this issue.
471 *) An attacker can force openssl to consume large amounts of memory whilst
472 processing DTLS handshake messages. This can be exploited through a
473 Denial of Service attack.
474 Thanks to Adam Langley for discovering and researching this issue.
478 *) An attacker can force an error condition which causes openssl to crash
479 whilst processing DTLS packets due to memory being freed twice. This
480 can be exploited through a Denial of Service attack.
481 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
486 *) If a multithreaded client connects to a malicious server using a resumed
487 session and the server sends an ec point format extension it could write
488 up to 255 bytes to freed memory.
490 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
495 *) A malicious server can crash an OpenSSL client with a null pointer
496 dereference (read) by specifying an SRP ciphersuite even though it was not
497 properly negotiated with the client. This can be exploited through a
498 Denial of Service attack.
500 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
501 discovering and researching this issue.
505 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
506 X509_name_oneline, X509_name_print_ex et al. to leak some information
507 from the stack. Applications may be affected if they echo pretty printing
508 output to the attacker.
510 Thanks to Ivan Fratric (Google) for discovering this issue.
512 [Emilia Käsper, and Steve Henson]
514 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
515 for corner cases. (Certain input points at infinity could lead to
516 bogus results, with non-infinity inputs mapped to infinity too.)
519 Changes between 1.0.1i and 1.0.1j [xx XXX xxxx]
521 *) Add additional DigestInfo checks.
523 Reencode DigestInto in DER and check against the original when
524 verifying RSA signature: this will reject any improperly encoded
525 DigestInfo structures.
527 Note: this is a precautionary measure and no attacks are currently known.
531 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
533 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
534 handshake can force the use of weak keying material in OpenSSL
535 SSL/TLS clients and servers.
537 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
538 researching this issue. (CVE-2014-0224)
539 [KIKUCHI Masashi, Steve Henson]
541 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
542 OpenSSL DTLS client the code can be made to recurse eventually crashing
545 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
547 [Imre Rad, Steve Henson]
549 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
550 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
551 client or server. This is potentially exploitable to run arbitrary
552 code on a vulnerable client or server.
554 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
555 [Jüri Aedla, Steve Henson]
557 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
558 are subject to a denial of service attack.
560 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
561 this issue. (CVE-2014-3470)
562 [Felix Gröbert, Ivan Fratric, Steve Henson]
564 *) Harmonize version and its documentation. -f flag is used to display
566 [mancha <mancha1@zoho.com>]
568 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
570 [mancha <mancha1@zoho.com>]
572 *) Fix some double frees. These are not thought to be exploitable.
573 [mancha <mancha1@zoho.com>]
575 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
577 *) A missing bounds check in the handling of the TLS heartbeat extension
578 can be used to reveal up to 64k of memory to a connected client or
581 Thanks for Neel Mehta of Google Security for discovering this bug and to
582 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
583 preparing the fix (CVE-2014-0160)
584 [Adam Langley, Bodo Moeller]
586 *) Fix for the attack described in the paper "Recovering OpenSSL
587 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
588 by Yuval Yarom and Naomi Benger. Details can be obtained from:
589 http://eprint.iacr.org/2014/140
591 Thanks to Yuval Yarom and Naomi Benger for discovering this
592 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
593 [Yuval Yarom and Naomi Benger]
595 *) TLS pad extension: draft-agl-tls-padding-03
597 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
598 TLS client Hello record length value would otherwise be > 255 and
599 less that 512 pad with a dummy extension containing zeroes so it
600 is at least 512 bytes long.
602 [Adam Langley, Steve Henson]
604 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
606 *) Fix for TLS record tampering bug. A carefully crafted invalid
607 handshake could crash OpenSSL with a NULL pointer exception.
608 Thanks to Anton Johansson for reporting this issues.
611 *) Keep original DTLS digest and encryption contexts in retransmission
612 structures so we can use the previous session parameters if they need
613 to be resent. (CVE-2013-6450)
616 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
617 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
618 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
619 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
620 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
621 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
622 [Rob Stradling, Adam Langley]
624 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
626 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
627 supporting platforms or when small records were transferred.
628 [Andy Polyakov, Steve Henson]
630 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
632 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
634 This addresses the flaw in CBC record processing discovered by
635 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
636 at: http://www.isg.rhul.ac.uk/tls/
638 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
639 Security Group at Royal Holloway, University of London
640 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
641 Emilia Käsper for the initial patch.
643 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
645 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
646 ciphersuites which can be exploited in a denial of service attack.
647 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
648 and detecting this bug and to Wolfgang Ettlinger
649 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
653 *) Return an error when checking OCSP signatures when key is NULL.
654 This fixes a DoS attack. (CVE-2013-0166)
657 *) Make openssl verify return errors.
658 [Chris Palmer <palmer@google.com> and Ben Laurie]
660 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
661 the right response is stapled. Also change SSL_get_certificate()
662 so it returns the certificate actually sent.
663 See http://rt.openssl.org/Ticket/Display.html?id=2836.
664 [Rob Stradling <rob.stradling@comodo.com>]
666 *) Fix possible deadlock when decoding public keys.
669 *) Don't use TLS 1.0 record version number in initial client hello
673 Changes between 1.0.1b and 1.0.1c [10 May 2012]
675 *) Sanity check record length before skipping explicit IV in TLS
676 1.2, 1.1 and DTLS to fix DoS attack.
678 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
679 fuzzing as a service testing platform.
683 *) Initialise tkeylen properly when encrypting CMS messages.
684 Thanks to Solar Designer of Openwall for reporting this issue.
687 *) In FIPS mode don't try to use composite ciphers as they are not
691 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
693 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
694 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
695 mean any application compiled against OpenSSL 1.0.0 headers setting
696 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
697 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
698 0x10000000L Any application which was previously compiled against
699 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
700 will need to be recompiled as a result. Letting be results in
701 inability to disable specifically TLS 1.1 and in client context,
702 in unlike event, limit maximum offered version to TLS 1.0 [see below].
705 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
706 disable just protocol X, but all protocols above X *if* there are
707 protocols *below* X still enabled. In more practical terms it means
708 that if application wants to disable TLS1.0 in favor of TLS1.1 and
709 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
710 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
714 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
716 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
717 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
718 in CRYPTO_realloc_clean.
720 Thanks to Tavis Ormandy, Google Security Team, for discovering this
721 issue and to Adam Langley <agl@chromium.org> for fixing it.
723 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
725 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
728 *) Workarounds for some broken servers that "hang" if a client hello
729 record length exceeds 255 bytes.
731 1. Do not use record version number > TLS 1.0 in initial client
732 hello: some (but not all) hanging servers will now work.
733 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
734 the number of ciphers sent in the client hello. This should be
735 set to an even number, such as 50, for example by passing:
736 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
737 Most broken servers should now work.
738 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
739 TLS 1.2 client support entirely.
742 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
745 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
747 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
748 STRING form instead of a DigestInfo.
751 *) The format used for MDC2 RSA signatures is inconsistent between EVP
752 and the RSA_sign/RSA_verify functions. This was made more apparent when
753 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
754 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
755 the correct format in RSA_verify so both forms transparently work.
758 *) Some servers which support TLS 1.0 can choke if we initially indicate
759 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
760 encrypted premaster secret. As a workaround use the maximum pemitted
761 client version in client hello, this should keep such servers happy
762 and still work with previous versions of OpenSSL.
765 *) Add support for TLS/DTLS heartbeats.
766 [Robin Seggelmann <seggelmann@fh-muenster.de>]
768 *) Add support for SCTP.
769 [Robin Seggelmann <seggelmann@fh-muenster.de>]
771 *) Improved PRNG seeding for VOS.
772 [Paul Green <Paul.Green@stratus.com>]
774 *) Extensive assembler packs updates, most notably:
776 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
777 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
778 - x86_64: bit-sliced AES implementation;
779 - ARM: NEON support, contemporary platforms optimizations;
780 - s390x: z196 support;
781 - *: GHASH and GF(2^m) multiplication implementations;
785 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
786 (removal of unnecessary code)
787 [Peter Sylvester <peter.sylvester@edelweb.fr>]
789 *) Add TLS key material exporter from RFC 5705.
792 *) Add DTLS-SRTP negotiation from RFC 5764.
795 *) Add Next Protocol Negotiation,
796 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
797 disabled with a no-npn flag to config or Configure. Code donated
799 [Adam Langley <agl@google.com> and Ben Laurie]
801 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
802 NIST-P256, NIST-P521, with constant-time single point multiplication on
803 typical inputs. Compiler support for the nonstandard type __uint128_t is
804 required to use this (present in gcc 4.4 and later, for 64-bit builds).
805 Code made available under Apache License version 2.0.
807 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
808 line to include this in your build of OpenSSL, and run "make depend" (or
809 "make update"). This enables the following EC_METHODs:
811 EC_GFp_nistp224_method()
812 EC_GFp_nistp256_method()
813 EC_GFp_nistp521_method()
815 EC_GROUP_new_by_curve_name() will automatically use these (while
816 EC_GROUP_new_curve_GFp() currently prefers the more flexible
818 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
820 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
821 all platforms. Move ssize_t definition from e_os.h to the public
822 header file e_os2.h as it now appears in public header file cms.h
825 *) New -sigopt option to the ca, req and x509 utilities. Additional
826 signature parameters can be passed using this option and in
830 *) Add RSA PSS signing function. This will generate and set the
831 appropriate AlgorithmIdentifiers for PSS based on those in the
832 corresponding EVP_MD_CTX structure. No application support yet.
835 *) Support for companion algorithm specific ASN1 signing routines.
836 New function ASN1_item_sign_ctx() signs a pre-initialised
837 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
838 the appropriate parameters.
841 *) Add new algorithm specific ASN1 verification initialisation function
842 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
843 handling will be the same no matter what EVP_PKEY_METHOD is used.
844 Add a PSS handler to support verification of PSS signatures: checked
845 against a number of sample certificates.
848 *) Add signature printing for PSS. Add PSS OIDs.
849 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
851 *) Add algorithm specific signature printing. An individual ASN1 method
852 can now print out signatures instead of the standard hex dump.
854 More complex signatures (e.g. PSS) can print out more meaningful
855 information. Include DSA version that prints out the signature
859 *) Password based recipient info support for CMS library: implementing
863 *) Split password based encryption into PBES2 and PBKDF2 functions. This
864 neatly separates the code into cipher and PBE sections and is required
865 for some algorithms that split PBES2 into separate pieces (such as
869 *) Session-handling fixes:
870 - Fix handling of connections that are resuming with a session ID,
871 but also support Session Tickets.
872 - Fix a bug that suppressed issuing of a new ticket if the client
873 presented a ticket with an expired session.
874 - Try to set the ticket lifetime hint to something reasonable.
875 - Make tickets shorter by excluding irrelevant information.
876 - On the client side, don't ignore renewed tickets.
877 [Adam Langley, Bodo Moeller (Google)]
879 *) Fix PSK session representation.
882 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
884 This work was sponsored by Intel.
887 *) Add GCM support to TLS library. Some custom code is needed to split
888 the IV between the fixed (from PRF) and explicit (from TLS record)
889 portions. This adds all GCM ciphersuites supported by RFC5288 and
890 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
891 add a special AESGCM string for GCM only.
894 *) Expand range of ctrls for AES GCM. Permit setting invocation
895 field on decrypt and retrieval of invocation field only on encrypt.
898 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
899 As required by RFC5289 these ciphersuites cannot be used if for
900 versions of TLS earlier than 1.2.
903 *) For FIPS capable OpenSSL interpret a NULL default public key method
904 as unset and return the appopriate default but do *not* set the default.
905 This means we can return the appopriate method in applications that
906 swicth between FIPS and non-FIPS modes.
909 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
910 ENGINE is used then we cannot handle that in the FIPS module so we
911 keep original code iff non-FIPS operations are allowed.
914 *) Add -attime option to openssl utilities.
915 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
917 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
920 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
921 FIPS EC methods unconditionally for now.
924 *) New build option no-ec2m to disable characteristic 2 code.
927 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
928 all cases can be covered as some introduce binary incompatibilities.
931 *) Redirect RSA operations to FIPS module including keygen,
932 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
935 *) Add similar low level API blocking to ciphers.
938 *) Low level digest APIs are not approved in FIPS mode: any attempt
939 to use these will cause a fatal error. Applications that *really* want
940 to use them can use the private_* version instead.
943 *) Redirect cipher operations to FIPS module for FIPS builds.
946 *) Redirect digest operations to FIPS module for FIPS builds.
949 *) Update build system to add "fips" flag which will link in fipscanister.o
950 for static and shared library builds embedding a signature if needed.
953 *) Output TLS supported curves in preference order instead of numerical
954 order. This is currently hardcoded for the highest order curves first.
955 This should be configurable so applications can judge speed vs strength.
958 *) Add TLS v1.2 server support for client authentication.
961 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
965 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
966 FIPS modules versions.
969 *) Add TLS v1.2 client side support for client authentication. Keep cache
970 of handshake records longer as we don't know the hash algorithm to use
971 until after the certificate request message is received.
974 *) Initial TLS v1.2 client support. Add a default signature algorithms
975 extension including all the algorithms we support. Parse new signature
976 format in client key exchange. Relax some ECC signing restrictions for
977 TLS v1.2 as indicated in RFC5246.
980 *) Add server support for TLS v1.2 signature algorithms extension. Switch
981 to new signature format when needed using client digest preference.
982 All server ciphersuites should now work correctly in TLS v1.2. No client
983 support yet and no support for client certificates.
986 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
987 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
988 ciphersuites. At present only RSA key exchange ciphersuites work with
989 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
990 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
991 and version checking.
994 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
995 with this defined it will not be affected by any changes to ssl internal
996 structures. Add several utility functions to allow openssl application
997 to work with OPENSSL_NO_SSL_INTERN defined.
1001 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
1003 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
1006 *) Permit abbreviated handshakes when renegotiating using the function
1007 SSL_renegotiate_abbreviated().
1008 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1010 *) Add call to ENGINE_register_all_complete() to
1011 ENGINE_load_builtin_engines(), so some implementations get used
1012 automatically instead of needing explicit application support.
1015 *) Add support for TLS key exporter as described in RFC5705.
1016 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
1018 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
1019 a few changes are required:
1021 Add SSL_OP_NO_TLSv1_1 flag.
1022 Add TLSv1_1 methods.
1023 Update version checking logic to handle version 1.1.
1024 Add explicit IV handling (ported from DTLS code).
1025 Add command line options to s_client/s_server.
1028 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
1030 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1032 This addresses the flaw in CBC record processing discovered by
1033 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1034 at: http://www.isg.rhul.ac.uk/tls/
1036 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1037 Security Group at Royal Holloway, University of London
1038 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1039 Emilia Käsper for the initial patch.
1041 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1043 *) Return an error when checking OCSP signatures when key is NULL.
1044 This fixes a DoS attack. (CVE-2013-0166)
1047 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1048 the right response is stapled. Also change SSL_get_certificate()
1049 so it returns the certificate actually sent.
1050 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1051 (This is a backport)
1052 [Rob Stradling <rob.stradling@comodo.com>]
1054 *) Fix possible deadlock when decoding public keys.
1057 Changes between 1.0.0i and 1.0.0j [10 May 2012]
1059 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
1062 *) Sanity check record length before skipping explicit IV in DTLS
1065 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1066 fuzzing as a service testing platform.
1070 *) Initialise tkeylen properly when encrypting CMS messages.
1071 Thanks to Solar Designer of Openwall for reporting this issue.
1074 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
1076 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1077 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1078 in CRYPTO_realloc_clean.
1080 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1081 issue and to Adam Langley <agl@chromium.org> for fixing it.
1083 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1085 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
1087 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1088 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1089 content decryption and always return the same error. Note: this attack
1090 needs on average 2^20 messages so it only affects automated senders. The
1091 old behaviour can be reenabled in the CMS code by setting the
1092 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1093 an MMA defence is not necessary.
1094 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1095 this issue. (CVE-2012-0884)
1098 *) Fix CVE-2011-4619: make sure we really are receiving a
1099 client hello before rejecting multiple SGC restarts. Thanks to
1100 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1103 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
1105 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1106 Thanks to Antonio Martin, Enterprise Secure Access Research and
1107 Development, Cisco Systems, Inc. for discovering this bug and
1108 preparing a fix. (CVE-2012-0050)
1111 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
1113 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1114 of the Vaudenay padding oracle attack on CBC mode encryption
1115 which enables an efficient plaintext recovery attack against
1116 the OpenSSL implementation of DTLS. Their attack exploits timing
1117 differences arising during decryption processing. A research
1118 paper describing this attack can be found at:
1119 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1120 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1121 Security Group at Royal Holloway, University of London
1122 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1123 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1124 for preparing the fix. (CVE-2011-4108)
1125 [Robin Seggelmann, Michael Tuexen]
1127 *) Clear bytes used for block padding of SSL 3.0 records.
1129 [Adam Langley (Google)]
1131 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1132 Kadianakis <desnacked@gmail.com> for discovering this issue and
1133 Adam Langley for preparing the fix. (CVE-2011-4619)
1134 [Adam Langley (Google)]
1136 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
1137 [Andrey Kulikov <amdeich@gmail.com>]
1139 *) Prevent malformed RFC3779 data triggering an assertion failure.
1140 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1141 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1142 [Rob Austein <sra@hactrn.net>]
1144 *) Improved PRNG seeding for VOS.
1145 [Paul Green <Paul.Green@stratus.com>]
1147 *) Fix ssl_ciph.c set-up race.
1148 [Adam Langley (Google)]
1150 *) Fix spurious failures in ecdsatest.c.
1151 [Emilia Käsper (Google)]
1153 *) Fix the BIO_f_buffer() implementation (which was mixing different
1154 interpretations of the '..._len' fields).
1155 [Adam Langley (Google)]
1157 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1158 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1159 threads won't reuse the same blinding coefficients.
1161 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1162 lock to call BN_BLINDING_invert_ex, and avoids one use of
1163 BN_BLINDING_update for each BN_BLINDING structure (previously,
1164 the last update always remained unused).
1165 [Emilia Käsper (Google)]
1167 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
1168 [Bob Buckholz (Google)]
1170 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
1172 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
1173 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
1174 [Kaspar Brand <ossl@velox.ch>]
1176 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1177 for multi-threaded use of ECDH. (CVE-2011-3210)
1178 [Adam Langley (Google)]
1180 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1183 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
1184 signature public key algorithm by using OID xref utilities instead.
1185 Before this you could only use some ECC ciphersuites with SHA1 only.
1188 *) Add protection against ECDSA timing attacks as mentioned in the paper
1189 by Billy Bob Brumley and Nicola Tuveri, see:
1191 http://eprint.iacr.org/2011/232.pdf
1193 [Billy Bob Brumley and Nicola Tuveri]
1195 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
1197 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1198 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1200 *) Fix bug in string printing code: if *any* escaping is enabled we must
1201 escape the escape character (backslash) or the resulting string is
1205 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
1207 *) Disable code workaround for ancient and obsolete Netscape browsers
1208 and servers: an attacker can use it in a ciphersuite downgrade attack.
1209 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1212 *) Fixed J-PAKE implementation error, originally discovered by
1213 Sebastien Martini, further info and confirmation from Stefan
1214 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1217 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
1219 *) Fix extension code to avoid race conditions which can result in a buffer
1220 overrun vulnerability: resumed sessions must not be modified as they can
1221 be shared by multiple threads. CVE-2010-3864
1224 *) Fix WIN32 build system to correctly link an ENGINE directory into
1228 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
1230 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
1232 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
1234 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
1236 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1237 context. The operation can be customised via the ctrl mechanism in
1238 case ENGINEs want to include additional functionality.
1241 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1244 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1245 output hashes compatible with older versions of OpenSSL.
1246 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1248 *) Fix compression algorithm handling: if resuming a session use the
1249 compression algorithm of the resumed session instead of determining
1250 it from client hello again. Don't allow server to change algorithm.
1253 *) Add load_crls() function to apps tidying load_certs() too. Add option
1254 to verify utility to allow additional CRLs to be included.
1257 *) Update OCSP request code to permit adding custom headers to the request:
1258 some responders need this.
1261 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1263 [Julia Lawall <julia@diku.dk>]
1265 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1266 needlessly dereferenced structures, used obsolete functions and
1267 didn't handle all updated verify codes correctly.
1270 *) Disable MD2 in the default configuration.
1273 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1274 indicate the initial BIO being pushed or popped. This makes it possible
1275 to determine whether the BIO is the one explicitly called or as a result
1276 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1277 it handles reference counts correctly and doesn't zero out the I/O bio
1278 when it is not being explicitly popped. WARNING: applications which
1279 included workarounds for the old buggy behaviour will need to be modified
1280 or they could free up already freed BIOs.
1283 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1284 renaming to all platforms (within the 0.9.8 branch, this was
1285 done conditionally on Netware platforms to avoid a name clash).
1286 [Guenter <lists@gknw.net>]
1288 *) Add ECDHE and PSK support to DTLS.
1289 [Michael Tuexen <tuexen@fh-muenster.de>]
1291 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1295 *) Add "missing" function EVP_MD_flags() (without this the only way to
1296 retrieve a digest flags is by accessing the structure directly. Update
1297 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1298 or cipher is registered as in the "from" argument. Print out all
1299 registered digests in the dgst usage message instead of manually
1300 attempting to work them out.
1303 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1304 this allows the use of compression and extensions. Change default cipher
1305 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1306 by default unless an application cipher string requests it.
1309 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1310 key ids to find matching certificates and keys but some PKCS#12 files
1311 don't follow the (somewhat unwritten) rules and this strategy fails.
1312 Now just gather all certificates together and the first private key
1313 then look for the first certificate that matches the key.
1316 *) Support use of registered digest and cipher names for dgst and cipher
1317 commands instead of having to add each one as a special case. So now
1324 openssl dgst -sha256 foo
1326 and this works for ENGINE based algorithms too.
1330 *) Update Gost ENGINE to support parameter files.
1331 [Victor B. Wagner <vitus@cryptocom.ru>]
1333 *) Support GeneralizedTime in ca utility.
1334 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1336 *) Enhance the hash format used for certificate directory links. The new
1337 form uses the canonical encoding (meaning equivalent names will work
1338 even if they aren't identical) and uses SHA1 instead of MD5. This form
1339 is incompatible with the older format and as a result c_rehash should
1340 be used to rebuild symbolic links.
1343 *) Make PKCS#8 the default write format for private keys, replacing the
1344 traditional format. This form is standardised, more secure and doesn't
1345 include an implicit MD5 dependency.
1348 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1349 committed to OpenSSL should pass this lot as a minimum.
1352 *) Add session ticket override functionality for use by EAP-FAST.
1353 [Jouni Malinen <j@w1.fi>]
1355 *) Modify HMAC functions to return a value. Since these can be implemented
1356 in an ENGINE errors can occur.
1359 *) Type-checked OBJ_bsearch_ex.
1362 *) Type-checked OBJ_bsearch. Also some constification necessitated
1363 by type-checking. Still to come: TXT_DB, bsearch(?),
1364 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1368 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1369 seconds to a tm structure directly, instead of going through OS
1370 specific date routines. This avoids any issues with OS routines such
1371 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1372 and X509_time_adj_ex() to cover the extended range. The existing
1373 X509_time_adj() is still usable and will no longer have any date issues.
1376 *) Delta CRL support. New use deltas option which will attempt to locate
1377 and search any appropriate delta CRLs available.
1379 This work was sponsored by Google.
1382 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1383 code and add additional score elements. Validate alternate CRL paths
1384 as part of the CRL checking and indicate a new error "CRL path validation
1385 error" in this case. Applications wanting additional details can use
1386 the verify callback and check the new "parent" field. If this is not
1387 NULL CRL path validation is taking place. Existing applications wont
1388 see this because it requires extended CRL support which is off by
1391 This work was sponsored by Google.
1394 *) Support for freshest CRL extension.
1396 This work was sponsored by Google.
1399 *) Initial indirect CRL support. Currently only supported in the CRLs
1400 passed directly and not via lookup. Process certificate issuer
1401 CRL entry extension and lookup CRL entries by bother issuer name
1402 and serial number. Check and process CRL issuer entry in IDP extension.
1404 This work was sponsored by Google.
1407 *) Add support for distinct certificate and CRL paths. The CRL issuer
1408 certificate is validated separately in this case. Only enabled if
1409 an extended CRL support flag is set: this flag will enable additional
1410 CRL functionality in future.
1412 This work was sponsored by Google.
1415 *) Add support for policy mappings extension.
1417 This work was sponsored by Google.
1420 *) Fixes to pathlength constraint, self issued certificate handling,
1421 policy processing to align with RFC3280 and PKITS tests.
1423 This work was sponsored by Google.
1426 *) Support for name constraints certificate extension. DN, email, DNS
1427 and URI types are currently supported.
1429 This work was sponsored by Google.
1432 *) To cater for systems that provide a pointer-based thread ID rather
1433 than numeric, deprecate the current numeric thread ID mechanism and
1434 replace it with a structure and associated callback type. This
1435 mechanism allows a numeric "hash" to be extracted from a thread ID in
1436 either case, and on platforms where pointers are larger than 'long',
1437 mixing is done to help ensure the numeric 'hash' is usable even if it
1438 can't be guaranteed unique. The default mechanism is to use "&errno"
1439 as a pointer-based thread ID to distinguish between threads.
1441 Applications that want to provide their own thread IDs should now use
1442 CRYPTO_THREADID_set_callback() to register a callback that will call
1443 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1445 Note that ERR_remove_state() is now deprecated, because it is tied
1446 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1447 to free the current thread's error state should be replaced by
1448 ERR_remove_thread_state(NULL).
1450 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1451 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1452 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1453 application was previously providing a numeric thread callback that
1454 was inappropriate for distinguishing threads, then uniqueness might
1455 have been obtained with &errno that happened immediately in the
1456 intermediate development versions of OpenSSL; this is no longer the
1457 case, the numeric thread callback will now override the automatic use
1459 [Geoff Thorpe, with help from Bodo Moeller]
1461 *) Initial support for different CRL issuing certificates. This covers a
1462 simple case where the self issued certificates in the chain exist and
1463 the real CRL issuer is higher in the existing chain.
1465 This work was sponsored by Google.
1468 *) Removed effectively defunct crypto/store from the build.
1471 *) Revamp of STACK to provide stronger type-checking. Still to come:
1472 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1473 ASN1_STRING, CONF_VALUE.
1476 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1477 RAM on SSL connections. This option can save about 34k per idle SSL.
1480 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1481 STACK, TXT_DB, bsearch, qsort.
1484 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1485 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1486 support for data, signedData, compressedData, digestedData and
1487 encryptedData, envelopedData types included. Scripts to check against
1488 RFC4134 examples draft and interop and consistency checks of many
1489 content types and variants.
1492 *) Add options to enc utility to support use of zlib compression BIO.
1495 *) Extend mk1mf to support importing of options and assembly language
1496 files from Configure script, currently only included in VC-WIN32.
1497 The assembly language rules can now optionally generate the source
1498 files from the associated perl scripts.
1501 *) Implement remaining functionality needed to support GOST ciphersuites.
1502 Interop testing has been performed using CryptoPro implementations.
1503 [Victor B. Wagner <vitus@cryptocom.ru>]
1505 *) s390x assembler pack.
1508 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1512 *) Implement Opaque PRF Input TLS extension as specified in
1513 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1514 official specification yet and no extension type assignment by
1515 IANA exists, this extension (for now) will have to be explicitly
1516 enabled when building OpenSSL by providing the extension number
1517 to use. For example, specify an option
1519 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1521 to the "config" or "Configure" script to enable the extension,
1522 assuming extension number 0x9527 (which is a completely arbitrary
1523 and unofficial assignment based on the MD5 hash of the Internet
1524 Draft). Note that by doing so, you potentially lose
1525 interoperability with other TLS implementations since these might
1526 be using the same extension number for other purposes.
1528 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1529 opaque PRF input value to use in the handshake. This will create
1530 an interal copy of the length-'len' string at 'src', and will
1531 return non-zero for success.
1533 To get more control and flexibility, provide a callback function
1536 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1537 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1541 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1544 Callback function 'cb' will be called in handshakes, and is
1545 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1546 Argument 'arg' is for application purposes (the value as given to
1547 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1548 be provided to the callback function). The callback function
1549 has to return non-zero to report success: usually 1 to use opaque
1550 PRF input just if possible, or 2 to enforce use of the opaque PRF
1551 input. In the latter case, the library will abort the handshake
1552 if opaque PRF input is not successfully negotiated.
1554 Arguments 'peerinput' and 'len' given to the callback function
1555 will always be NULL and 0 in the case of a client. A server will
1556 see the client's opaque PRF input through these variables if
1557 available (NULL and 0 otherwise). Note that if the server
1558 provides an opaque PRF input, the length must be the same as the
1559 length of the client's opaque PRF input.
1561 Note that the callback function will only be called when creating
1562 a new session (session resumption can resume whatever was
1563 previously negotiated), and will not be called in SSL 2.0
1564 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1565 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1566 for applications that need to enforce opaque PRF input.
1570 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1573 [Victor B. Wagner <vitus@cryptocom.ru>]
1575 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1576 RFC4507bis. The encrypted ticket format is an encrypted encoded
1577 SSL_SESSION structure, that way new session features are automatically
1580 If a client application caches session in an SSL_SESSION structure
1581 support is transparent because tickets are now stored in the encoded
1584 The SSL_CTX structure automatically generates keys for ticket
1585 protection in servers so again support should be possible
1586 with no application modification.
1588 If a client or server wishes to disable RFC4507 support then the option
1589 SSL_OP_NO_TICKET can be set.
1591 Add a TLS extension debugging callback to allow the contents of any client
1592 or server extensions to be examined.
1594 This work was sponsored by Google.
1597 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1598 OpenSSL should now compile cleanly on gcc 4.2
1599 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1601 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1602 support including streaming MAC support: this is required for GOST
1603 ciphersuite support.
1604 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1606 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1607 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1608 to output in BER and PEM format.
1611 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1612 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1613 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1614 ENGINE support for HMAC keys which are unextractable. New -mac and
1615 -macopt options to dgst utility.
1618 *) New option -sigopt to dgst utility. Update dgst to use
1619 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1620 alternative signing paramaters such as X9.31 or PSS in the dgst
1624 *) Change ssl_cipher_apply_rule(), the internal function that does
1625 the work each time a ciphersuite string requests enabling
1626 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1627 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1628 the order of disabled ciphersuites such that those ciphersuites
1629 that most recently went from enabled to disabled not only stay
1630 in order with respect to each other, but also have higher priority
1631 than other disabled ciphersuites the next time ciphersuites are
1634 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1635 the same ciphersuites as with "HIGH" alone, but in a specific
1636 order where the PSK ciphersuites come first (since they are the
1637 most recently disabled ciphersuites when "HIGH" is parsed).
1639 Also, change ssl_create_cipher_list() (using this new
1640 funcionality) such that between otherwise identical
1641 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1645 *) Change ssl_create_cipher_list() so that it automatically
1646 arranges the ciphersuites in reasonable order before starting
1647 to process the rule string. Thus, the definition for "DEFAULT"
1648 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1649 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1650 This makes it much easier to arrive at a reasonable default order
1651 in applications for which anonymous ciphers are OK (meaning
1652 that you can't actually use DEFAULT).
1653 [Bodo Moeller; suggested by Victor Duchovni]
1655 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1656 processing) into multiple integers instead of setting
1657 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1658 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1659 (These masks as well as the individual bit definitions are hidden
1660 away into the non-exported interface ssl/ssl_locl.h, so this
1661 change to the definition of the SSL_CIPHER structure shouldn't
1662 affect applications.) This give us more bits for each of these
1663 categories, so there is no longer a need to coagulate AES128 and
1664 AES256 into a single algorithm bit, and to coagulate Camellia128
1665 and Camellia256 into a single algorithm bit, which has led to all
1668 Thus, among other things, the kludge introduced in 0.9.7m and
1669 0.9.8e for masking out AES256 independently of AES128 or masking
1670 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1672 With the change, we also introduce new ciphersuite aliases that
1673 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1677 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1678 Use the leftmost N bytes of the signature input if the input is
1679 larger than the prime q (with N being the size in bytes of q).
1682 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1683 it yet and it is largely untested.
1686 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1689 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1690 some compilers (gcc 4.2 and later) reject their use. Safestack is
1691 reimplemented. Update ASN1 to avoid use of legacy functions.
1694 *) Win32/64 targets are linked with Winsock2.
1697 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1698 to external functions. This can be used to increase CRL handling
1699 efficiency especially when CRLs are very large by (for example) storing
1700 the CRL revoked certificates in a database.
1703 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1704 new CRLs added to a directory can be used. New command line option
1705 -verify_return_error to s_client and s_server. This causes real errors
1706 to be returned by the verify callback instead of carrying on no matter
1707 what. This reflects the way a "real world" verify callback would behave.
1710 *) GOST engine, supporting several GOST algorithms and public key formats.
1711 Kindly donated by Cryptocom.
1714 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1715 partitioned by DP are handled but no indirect CRL or reason partitioning
1716 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1717 selected via a scoring technique which handles IDP and AKID in CRLs.
1720 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1721 will ultimately be used for all verify operations: this will remove the
1722 X509_STORE dependency on certificate verification and allow alternative
1723 lookup methods. X509_STORE based implementations of these two callbacks.
1726 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1727 Modify get_crl() to find a valid (unexpired) CRL if possible.
1730 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1731 this would be called X509_CRL_cmp() but that name is already used by
1732 a function that just compares CRL issuer names. Cache several CRL
1733 extensions in X509_CRL structure and cache CRLDP in X509.
1736 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1737 this maps equivalent X509_NAME structures into a consistent structure.
1738 Name comparison can then be performed rapidly using memcmp().
1741 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1745 *) Allow digests to supply their own micalg string for S/MIME type using
1746 the ctrl EVP_MD_CTRL_MICALG.
1749 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1750 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1751 ctrl. It can then customise the structure before and/or after signing
1755 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1756 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1757 to free up any added signature OIDs.
1760 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1761 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1762 digest and cipher tables. New options added to openssl utility:
1763 list-message-digest-algorithms and list-cipher-algorithms.
1766 *) Change the array representation of binary polynomials: the list
1767 of degrees of non-zero coefficients is now terminated with -1.
1768 Previously it was terminated with 0, which was also part of the
1769 value; thus, the array representation was not applicable to
1770 polynomials where t^0 has coefficient zero. This change makes
1771 the array representation useful in a more general context.
1774 *) Various modifications and fixes to SSL/TLS cipher string
1775 handling. For ECC, the code now distinguishes between fixed ECDH
1776 with RSA certificates on the one hand and with ECDSA certificates
1777 on the other hand, since these are separate ciphersuites. The
1778 unused code for Fortezza ciphersuites has been removed.
1780 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1781 (not "ECDHE"). For consistency with the code for DH
1782 certificates, use of ECDH certificates is now considered ECDH
1783 authentication, not RSA or ECDSA authentication (the latter is
1784 merely the CA's signing algorithm and not actively used in the
1787 The temporary ciphersuite alias "ECCdraft" is no longer
1788 available, and ECC ciphersuites are no longer excluded from "ALL"
1789 and "DEFAULT". The following aliases now exist for RFC 4492
1790 ciphersuites, most of these by analogy with the DH case:
1792 kECDHr - ECDH cert, signed with RSA
1793 kECDHe - ECDH cert, signed with ECDSA
1794 kECDH - ECDH cert (signed with either RSA or ECDSA)
1795 kEECDH - ephemeral ECDH
1796 ECDH - ECDH cert or ephemeral ECDH
1802 AECDH - anonymous ECDH
1803 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1807 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1808 Use correct micalg parameters depending on digest(s) in signed message.
1811 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1812 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1815 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1816 an engine to register a method. Add ENGINE lookups for methods and
1817 functional reference processing.
1820 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1821 EVP_{Sign,Verify}* which allow an application to customise the signature
1825 *) New -resign option to smime utility. This adds one or more signers
1826 to an existing PKCS#7 signedData structure. Also -md option to use an
1827 alternative message digest algorithm for signing.
1830 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1831 create PKCS7 structures containing multiple signers. Update smime
1832 application to support multiple signers.
1835 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1839 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1840 Reorganize PBE internals to lookup from a static table using NIDs,
1841 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1842 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1843 PRF which will be automatically used with PBES2.
1846 *) Replace the algorithm specific calls to generate keys in "req" with the
1850 *) Update PKCS#7 enveloped data routines to use new API. This is now
1851 supported by any public key method supporting the encrypt operation. A
1852 ctrl is added to allow the public key algorithm to examine or modify
1853 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1857 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1858 a default digest type to use. In most cases this will be SHA1 but some
1859 algorithms (such as GOST) need to specify an alternative digest. The
1860 return value indicates how strong the prefernce is 1 means optional and
1861 2 is mandatory (that is it is the only supported type). Modify
1862 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1863 use the default md. Update openssl utilities to use the default digest
1864 type for signing if it is not explicitly indicated.
1867 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1868 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1869 signing method from the key type. This effectively removes the link
1870 between digests and public key types.
1873 *) Add an OID cross reference table and utility functions. Its purpose is to
1874 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1875 rsaEncryption. This will allow some of the algorithm specific hackery
1876 needed to use the correct OID to be removed.
1879 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1880 structures for PKCS7_sign(). They are now set up by the relevant public
1884 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1887 *) Add support for key derivation (agreement) in the API, DH method and
1891 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1892 public and private key formats. As a side effect these add additional
1893 command line functionality not previously available: DSA signatures can be
1894 generated and verified using pkeyutl and DH key support and generation in
1899 [Oliver Tappe <zooey@hirschkaefer.de>]
1901 *) New make target "install_html_docs" installs HTML renditions of the
1903 [Oliver Tappe <zooey@hirschkaefer.de>]
1905 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1906 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1907 support key and parameter generation and add initial key generation
1908 functionality for RSA.
1911 *) Add functions for main EVP_PKEY_method operations. The undocumented
1912 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1913 EVP_PKEY_{encrypt,decrypt}_old.
1916 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1917 key API, doesn't do much yet.
1920 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1921 public key algorithms. New option to openssl utility:
1922 "list-public-key-algorithms" to print out info.
1925 *) Implement the Supported Elliptic Curves Extension for
1926 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1929 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1930 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1933 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1934 utilities such as rsa, dsa, dsaparam etc except they process any key
1938 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1939 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1940 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1944 *) Initial support for pluggable public key ASN1.
1945 De-spaghettify the public key ASN1 handling. Move public and private
1946 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1947 algorithm specific handling to a single module within the relevant
1948 algorithm directory. Add functions to allow (near) opaque processing
1949 of public and private key structures.
1952 *) Implement the Supported Point Formats Extension for
1953 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1956 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1957 for the psk identity [hint] and the psk callback functions to the
1958 SSL_SESSION, SSL and SSL_CTX structure.
1961 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1965 SSL_CTX_use_psk_identity_hint
1966 SSL_get_psk_identity_hint
1967 SSL_get_psk_identity
1968 SSL_use_psk_identity_hint
1970 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1972 *) Add RFC 3161 compliant time stamp request creation, response generation
1973 and response verification functionality.
1974 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1976 *) Add initial support for TLS extensions, specifically for the server_name
1977 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1978 have new members for a host name. The SSL data structure has an
1979 additional member SSL_CTX *initial_ctx so that new sessions can be
1980 stored in that context to allow for session resumption, even after the
1981 SSL has been switched to a new SSL_CTX in reaction to a client's
1982 server_name extension.
1984 New functions (subject to change):
1986 SSL_get_servername()
1987 SSL_get_servername_type()
1990 New CTRL codes and macros (subject to change):
1992 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1993 - SSL_CTX_set_tlsext_servername_callback()
1994 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1995 - SSL_CTX_set_tlsext_servername_arg()
1996 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1998 openssl s_client has a new '-servername ...' option.
2000 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2001 '-key2 ...', '-servername_fatal' (subject to change). This allows
2002 testing the HostName extension for a specific single host name ('-cert'
2003 and '-key' remain fallbacks for handshakes without HostName
2004 negotiation). If the unrecogninzed_name alert has to be sent, this by
2005 default is a warning; it becomes fatal with the '-servername_fatal'
2008 [Peter Sylvester, Remy Allais, Christophe Renou]
2010 *) Whirlpool hash implementation is added.
2013 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
2014 bn(64,32). Because of instruction set limitations it doesn't have
2015 any negative impact on performance. This was done mostly in order
2016 to make it possible to share assembler modules, such as bn_mul_mont
2017 implementations, between 32- and 64-bit builds without hassle.
2020 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
2021 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
2025 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
2026 dedicated Montgomery multiplication procedure, is introduced.
2027 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
2028 "64-bit" performance on certain 32-bit targets.
2031 *) New option SSL_OP_NO_COMP to disable use of compression selectively
2032 in SSL structures. New SSL ctrl to set maximum send fragment size.
2033 Save memory by seeting the I/O buffer sizes dynamically instead of
2034 using the maximum available value.
2037 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
2038 in addition to the text details.
2041 *) Very, very preliminary EXPERIMENTAL support for printing of general
2042 ASN1 structures. This currently produces rather ugly output and doesn't
2043 handle several customised structures at all.
2046 *) Integrated support for PVK file format and some related formats such
2047 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
2048 these in the 'rsa' and 'dsa' utilities.
2051 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
2054 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
2055 place for the (very old) "NETSCAPE" format certificates which are now
2056 handled using new ASN1 code equivalents.
2059 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
2060 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
2061 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
2064 *) Modify CRL distribution points extension code to print out previously
2065 unsupported fields. Enhance extension setting code to allow setting of
2069 *) Add print and set support for Issuing Distribution Point CRL extension.
2072 *) Change 'Configure' script to enable Camellia by default.
2075 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
2077 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
2079 This addresses the flaw in CBC record processing discovered by
2080 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
2081 at: http://www.isg.rhul.ac.uk/tls/
2083 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2084 Security Group at Royal Holloway, University of London
2085 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
2086 Emilia Käsper for the initial patch.
2088 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
2090 *) Return an error when checking OCSP signatures when key is NULL.
2091 This fixes a DoS attack. (CVE-2013-0166)
2094 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
2095 the right response is stapled. Also change SSL_get_certificate()
2096 so it returns the certificate actually sent.
2097 See http://rt.openssl.org/Ticket/Display.html?id=2836.
2098 (This is a backport)
2099 [Rob Stradling <rob.stradling@comodo.com>]
2101 *) Fix possible deadlock when decoding public keys.
2104 Changes between 0.9.8w and 0.9.8x [10 May 2012]
2106 *) Sanity check record length before skipping explicit IV in DTLS
2109 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
2110 fuzzing as a service testing platform.
2114 *) Initialise tkeylen properly when encrypting CMS messages.
2115 Thanks to Solar Designer of Openwall for reporting this issue.
2118 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
2120 *) The fix for CVE-2012-2110 did not take into account that the
2121 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
2122 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
2123 rejecting negative len parameter. (CVE-2012-2131)
2124 [Tomas Hoger <thoger@redhat.com>]
2126 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
2128 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2129 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2130 in CRYPTO_realloc_clean.
2132 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2133 issue and to Adam Langley <agl@chromium.org> for fixing it.
2135 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2137 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
2139 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2140 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2141 content decryption and always return the same error. Note: this attack
2142 needs on average 2^20 messages so it only affects automated senders. The
2143 old behaviour can be reenabled in the CMS code by setting the
2144 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2145 an MMA defence is not necessary.
2146 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2147 this issue. (CVE-2012-0884)
2150 *) Fix CVE-2011-4619: make sure we really are receiving a
2151 client hello before rejecting multiple SGC restarts. Thanks to
2152 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2155 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
2157 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2158 Thanks to Antonio Martin, Enterprise Secure Access Research and
2159 Development, Cisco Systems, Inc. for discovering this bug and
2160 preparing a fix. (CVE-2012-0050)
2163 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
2165 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2166 of the Vaudenay padding oracle attack on CBC mode encryption
2167 which enables an efficient plaintext recovery attack against
2168 the OpenSSL implementation of DTLS. Their attack exploits timing
2169 differences arising during decryption processing. A research
2170 paper describing this attack can be found at:
2171 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2172 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2173 Security Group at Royal Holloway, University of London
2174 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2175 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2176 for preparing the fix. (CVE-2011-4108)
2177 [Robin Seggelmann, Michael Tuexen]
2179 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
2180 [Ben Laurie, Kasper <ekasper@google.com>]
2182 *) Clear bytes used for block padding of SSL 3.0 records.
2184 [Adam Langley (Google)]
2186 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2187 Kadianakis <desnacked@gmail.com> for discovering this issue and
2188 Adam Langley for preparing the fix. (CVE-2011-4619)
2189 [Adam Langley (Google)]
2191 *) Prevent malformed RFC3779 data triggering an assertion failure.
2192 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2193 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2194 [Rob Austein <sra@hactrn.net>]
2196 *) Fix ssl_ciph.c set-up race.
2197 [Adam Langley (Google)]
2199 *) Fix spurious failures in ecdsatest.c.
2200 [Emilia Käsper (Google)]
2202 *) Fix the BIO_f_buffer() implementation (which was mixing different
2203 interpretations of the '..._len' fields).
2204 [Adam Langley (Google)]
2206 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2207 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2208 threads won't reuse the same blinding coefficients.
2210 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2211 lock to call BN_BLINDING_invert_ex, and avoids one use of
2212 BN_BLINDING_update for each BN_BLINDING structure (previously,
2213 the last update always remained unused).
2214 [Emilia Käsper (Google)]
2216 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2217 for multi-threaded use of ECDH.
2218 [Adam Langley (Google)]
2220 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2223 *) Add protection against ECDSA timing attacks as mentioned in the paper
2224 by Billy Bob Brumley and Nicola Tuveri, see:
2226 http://eprint.iacr.org/2011/232.pdf
2228 [Billy Bob Brumley and Nicola Tuveri]
2230 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
2232 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2233 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2235 *) Fix bug in string printing code: if *any* escaping is enabled we must
2236 escape the escape character (backslash) or the resulting string is
2240 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
2242 *) Disable code workaround for ancient and obsolete Netscape browsers
2243 and servers: an attacker can use it in a ciphersuite downgrade attack.
2244 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2247 *) Fixed J-PAKE implementation error, originally discovered by
2248 Sebastien Martini, further info and confirmation from Stefan
2249 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2252 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
2254 *) Fix extension code to avoid race conditions which can result in a buffer
2255 overrun vulnerability: resumed sessions must not be modified as they can
2256 be shared by multiple threads. CVE-2010-3864
2259 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
2262 *) Don't reencode certificate when calculating signature: cache and use
2263 the original encoding instead. This makes signature verification of
2264 some broken encodings work correctly.
2267 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
2268 is also one of the inputs.
2269 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
2271 *) Don't repeatedly append PBE algorithms to table if they already exist.
2272 Sort table on each new add. This effectively makes the table read only
2273 after all algorithms are added and subsequent calls to PKCS12_pbe_add
2277 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
2279 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
2282 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
2283 access or freeing data twice (CVE-2010-0742)
2284 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
2286 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
2287 common in certificates and some applications which only call
2288 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2292 Reduce copying into .apps and .test in makevms.com
2293 Don't try to use blank CA certificate in CA.com
2294 Allow use of C files from original directories in maketests.com
2295 [Steven M. Schweda" <sms@antinode.info>]
2297 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2299 *) When rejecting SSL/TLS records due to an incorrect version number, never
2300 update s->server with a new major version number. As of
2301 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2302 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2303 the previous behavior could result in a read attempt at NULL when
2304 receiving specific incorrect SSL/TLS records once record payload
2305 protection is active. (CVE-2010-0740)
2306 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2308 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2309 could be crashed if the relevant tables were not present (e.g. chrooted).
2310 [Tomas Hoger <thoger@redhat.com>]
2312 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2314 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2315 [Martin Olsson, Neel Mehta]
2317 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2318 accommodate for stack sorting, always a write lock!).
2321 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2322 excessive delays in the RAND_poll(): over a minute. As a workaround
2323 include a time check in the inner Heap32Next loop too.
2326 *) The code that handled flushing of data in SSL/TLS originally used the
2327 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2328 the problem outlined in PR#1949. The fix suggested there however can
2329 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2330 of Apache). So instead simplify the code to flush unconditionally.
2331 This should be fine since flushing with no data to flush is a no op.
2334 *) Handle TLS versions 2.0 and later properly and correctly use the
2335 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2336 off ancient servers have a habit of sticking around for a while...
2339 *) Modify compression code so it frees up structures without using the
2340 ex_data callbacks. This works around a problem where some applications
2341 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2342 restarting) then use compression (e.g. SSL with compression) later.
2343 This results in significant per-connection memory leaks and
2344 has caused some security issues including CVE-2008-1678 and
2348 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2349 change when encrypting or decrypting.
2352 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2353 connect and renegotiate with servers which do not support RI.
2354 Until RI is more widely deployed this option is enabled by default.
2357 *) Add "missing" ssl ctrls to clear options and mode.
2360 *) If client attempts to renegotiate and doesn't support RI respond with
2361 a no_renegotiation alert as required by RFC5746. Some renegotiating
2362 TLS clients will continue a connection gracefully when they receive
2363 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2364 waiting for a server hello which it will never receive. Now we treat a
2365 received no_renegotiation alert as a fatal error. This is because
2366 applications requesting a renegotiation might well expect it to succeed
2367 and would have no code in place to handle the server denying it so the
2368 only safe thing to do is to terminate the connection.
2371 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2372 peer supports secure renegotiation and 0 otherwise. Print out peer
2373 renegotiation support in s_client/s_server.
2376 *) Replace the highly broken and deprecated SPKAC certification method with
2377 the updated NID creation version. This should correctly handle UTF8.
2380 *) Implement RFC5746. Re-enable renegotiation but require the extension
2381 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2382 turns out to be a bad idea. It has been replaced by
2383 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2384 SSL_CTX_set_options(). This is really not recommended unless you
2385 know what you are doing.
2386 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2388 *) Fixes to stateless session resumption handling. Use initial_ctx when
2389 issuing and attempting to decrypt tickets in case it has changed during
2390 servername handling. Use a non-zero length session ID when attempting
2391 stateless session resumption: this makes it possible to determine if
2392 a resumption has occurred immediately after receiving server hello
2393 (several places in OpenSSL subtly assume this) instead of later in
2397 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2398 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2399 fixes for a few places where the return code is not checked
2401 [Julia Lawall <julia@diku.dk>]
2403 *) Add --strict-warnings option to Configure script to include devteam
2404 warnings in other configurations.
2407 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2408 makes it possible to install openssl libraries in locations which
2409 have names other than "lib", for example "/usr/lib64" which some
2411 [Steve Henson, based on patch from Jeremy Utley]
2413 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2414 X690 8.9.12 and can produce some misleading textual output of OIDs.
2415 [Steve Henson, reported by Dan Kaminsky]
2417 *) Delete MD2 from algorithm tables. This follows the recommendation in
2418 several standards that it is not used in new applications due to
2419 several cryptographic weaknesses. For binary compatibility reasons
2420 the MD2 API is still compiled in by default.
2423 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2427 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2428 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2430 [Guenter <lists@gknw.net>]
2432 *) Fix the server certificate chain building code to use X509_verify_cert(),
2433 it used to have an ad-hoc builder which was unable to cope with anything
2434 other than a simple chain.
2435 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2437 *) Don't check self signed certificate signatures in X509_verify_cert()
2438 by default (a flag can override this): it just wastes time without
2439 adding any security. As a useful side effect self signed root CAs
2440 with non-FIPS digests are now usable in FIPS mode.
2443 *) In dtls1_process_out_of_seq_message() the check if the current message
2444 is already buffered was missing. For every new message was memory
2445 allocated, allowing an attacker to perform an denial of service attack
2446 with sending out of seq handshake messages until there is no memory
2447 left. Additionally every future messege was buffered, even if the
2448 sequence number made no sense and would be part of another handshake.
2449 So only messages with sequence numbers less than 10 in advance will be
2450 buffered. (CVE-2009-1378)
2451 [Robin Seggelmann, discovered by Daniel Mentz]
2453 *) Records are buffered if they arrive with a future epoch to be
2454 processed after finishing the corresponding handshake. There is
2455 currently no limitation to this buffer allowing an attacker to perform
2456 a DOS attack with sending records with future epochs until there is no
2457 memory left. This patch adds the pqueue_size() function to detemine
2458 the size of a buffer and limits the record buffer to 100 entries.
2460 [Robin Seggelmann, discovered by Daniel Mentz]
2462 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2463 parent structure is freed. (CVE-2009-1379)
2466 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2467 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2470 [Ilya O. <vrghost@gmail.com>]
2472 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2474 *) Disable renegotiation completely - this fixes a severe security
2475 problem (CVE-2009-3555) at the cost of breaking all
2476 renegotiation. Renegotiation can be re-enabled by setting
2477 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2478 run-time. This is really not recommended unless you know what
2482 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2484 *) Don't set val to NULL when freeing up structures, it is freed up by
2485 underlying code. If sizeof(void *) > sizeof(long) this can result in
2486 zeroing past the valid field. (CVE-2009-0789)
2487 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2489 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2490 checked correctly. This would allow some invalid signed attributes to
2491 appear to verify correctly. (CVE-2009-0591)
2492 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2494 *) Reject UniversalString and BMPString types with invalid lengths. This
2495 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2496 a legal length. (CVE-2009-0590)
2499 *) Set S/MIME signing as the default purpose rather than setting it
2500 unconditionally. This allows applications to override it at the store
2504 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2505 to handle some structures.
2508 *) Improve efficiency of mem_gets: don't search whole buffer each time
2510 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2512 *) New -hex option for openssl rand.
2515 *) Print out UTF8String and NumericString when parsing ASN1.
2518 *) Support NumericString type for name components.
2521 *) Allow CC in the environment to override the automatically chosen
2522 compiler. Note that nothing is done to ensure flags work with the
2526 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2528 *) Properly check EVP_VerifyFinal() and similar return values
2530 [Ben Laurie, Bodo Moeller, Google Security Team]
2532 *) Enable TLS extensions by default.
2535 *) Allow the CHIL engine to be loaded, whether the application is
2536 multithreaded or not. (This does not release the developer from the
2537 obligation to set up the dynamic locking callbacks.)
2538 [Sander Temme <sander@temme.net>]
2540 *) Use correct exit code if there is an error in dgst command.
2541 [Steve Henson; problem pointed out by Roland Dirlewanger]
2543 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2544 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2547 *) Add experimental JPAKE support, including demo authentication in
2548 s_client and s_server.
2551 *) Set the comparison function in v3_addr_canonize().
2552 [Rob Austein <sra@hactrn.net>]
2554 *) Add support for XMPP STARTTLS in s_client.
2555 [Philip Paeps <philip@freebsd.org>]
2557 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2558 to ensure that even with this option, only ciphersuites in the
2559 server's preference list will be accepted. (Note that the option
2560 applies only when resuming a session, so the earlier behavior was
2561 just about the algorithm choice for symmetric cryptography.)
2564 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2566 *) Fix NULL pointer dereference if a DTLS server received
2567 ChangeCipherSpec as first record (CVE-2009-1386).
2570 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2571 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2574 *) The fix in 0.9.8c that supposedly got rid of unsafe
2575 double-checked locking was incomplete for RSA blinding,
2576 addressing just one layer of what turns out to have been
2577 doubly unsafe triple-checked locking.
2579 So now fix this for real by retiring the MONT_HELPER macro
2580 in crypto/rsa/rsa_eay.c.
2582 [Bodo Moeller; problem pointed out by Marius Schilder]
2584 *) Various precautionary measures:
2586 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2588 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2589 (NB: This would require knowledge of the secret session ticket key
2590 to exploit, in which case you'd be SOL either way.)
2592 - Change bn_nist.c so that it will properly handle input BIGNUMs
2593 outside the expected range.
2595 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2598 [Neel Mehta, Bodo Moeller]
2600 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2601 the load fails. Useful for distros.
2602 [Ben Laurie and the FreeBSD team]
2604 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2607 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2610 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2612 This work was sponsored by Logica.
2615 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2616 keystores. Support for SSL/TLS client authentication too.
2617 Not compiled unless enable-capieng specified to Configure.
2619 This work was sponsored by Logica.
2622 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2623 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2624 attribute creation routines such as certifcate requests and PKCS#12
2628 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2630 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2631 handshake which could lead to a cilent crash as found using the
2632 Codenomicon TLS test suite (CVE-2008-1672)
2633 [Steve Henson, Mark Cox]
2635 *) Fix double free in TLS server name extensions which could lead to
2636 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2639 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2641 Clear the error queue to ensure that error entries left from
2642 older function calls do not interfere with the correct operation.
2643 [Lutz Jaenicke, Erik de Castro Lopo]
2645 *) Remove root CA certificates of commercial CAs:
2647 The OpenSSL project does not recommend any specific CA and does not
2648 have any policy with respect to including or excluding any CA.
2649 Therefore it does not make any sense to ship an arbitrary selection
2650 of root CA certificates with the OpenSSL software.
2653 *) RSA OAEP patches to fix two separate invalid memory reads.
2654 The first one involves inputs when 'lzero' is greater than
2655 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2656 before the beginning of from). The second one involves inputs where
2657 the 'db' section contains nothing but zeroes (there is a one-byte
2658 invalid read after the end of 'db').
2659 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2661 *) Partial backport from 0.9.9-dev:
2663 Introduce bn_mul_mont (dedicated Montgomery multiplication
2664 procedure) as a candidate for BIGNUM assembler implementation.
2665 While 0.9.9-dev uses assembler for various architectures, only
2666 x86_64 is available by default here in the 0.9.8 branch, and
2667 32-bit x86 is available through a compile-time setting.
2669 To try the 32-bit x86 assembler implementation, use Configure
2670 option "enable-montasm" (which exists only for this backport).
2672 As "enable-montasm" for 32-bit x86 disclaims code stability
2673 anyway, in this constellation we activate additional code
2674 backported from 0.9.9-dev for further performance improvements,
2675 namely BN_from_montgomery_word. (To enable this otherwise,
2676 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2678 [Andy Polyakov (backport partially by Bodo Moeller)]
2680 *) Add TLS session ticket callback. This allows an application to set
2681 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2682 values. This is useful for key rollover for example where several key
2683 sets may exist with different names.
2686 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2687 This was broken until now in 0.9.8 releases, such that the only way
2688 a registered ENGINE could be used (assuming it initialises
2689 successfully on the host) was to explicitly set it as the default
2690 for the relevant algorithms. This is in contradiction with 0.9.7
2691 behaviour and the documentation. With this fix, when an ENGINE is
2692 registered into a given algorithm's table of implementations, the
2693 'uptodate' flag is reset so that auto-discovery will be used next
2694 time a new context for that algorithm attempts to select an
2696 [Ian Lister (tweaked by Geoff Thorpe)]
2698 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2699 implemention in the following ways:
2701 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2704 Lack of BER streaming support means one pass streaming processing is
2705 only supported if data is detached: setting the streaming flag is
2706 ignored for embedded content.
2708 CMS support is disabled by default and must be explicitly enabled
2709 with the enable-cms configuration option.
2712 *) Update the GMP engine glue to do direct copies between BIGNUM and
2713 mpz_t when openssl and GMP use the same limb size. Otherwise the
2714 existing "conversion via a text string export" trick is still used.
2715 [Paul Sheer <paulsheer@gmail.com>]
2717 *) Zlib compression BIO. This is a filter BIO which compressed and
2718 uncompresses any data passed through it.
2721 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2722 RFC3394 compatible AES key wrapping.
2725 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2726 sets string data without copying. X509_ALGOR_set0() and
2727 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2728 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2729 from an X509_ATTRIBUTE structure optionally checking it occurs only
2730 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2734 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2735 to get the expected BN_FLG_CONSTTIME behavior.
2736 [Bodo Moeller (Google)]
2740 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2741 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2742 - added some more tests to do_tests.pl
2743 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2744 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2745 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2746 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2747 - various changes to netware.pl to enable gcc-cross builds on Win32
2749 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2750 - various changes to fix missing prototype warnings
2751 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2752 - added AES, WHIRLPOOL and CPUID assembler code to build files
2753 - added missing AES assembler make rules to mk1mf.pl
2754 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2755 [Guenter Knauf <eflash@gmx.net>]
2757 *) Implement certificate status request TLS extension defined in RFC3546.
2758 A client can set the appropriate parameters and receive the encoded
2759 OCSP response via a callback. A server can query the supplied parameters
2760 and set the encoded OCSP response in the callback. Add simplified examples
2761 to s_client and s_server.
2764 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2766 *) Fix various bugs:
2767 + Binary incompatibility of ssl_ctx_st structure
2768 + DTLS interoperation with non-compliant servers
2769 + Don't call get_session_cb() without proposed session
2770 + Fix ia64 assembler code
2771 [Andy Polyakov, Steve Henson]
2773 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2775 *) DTLS Handshake overhaul. There were longstanding issues with
2776 OpenSSL DTLS implementation, which were making it impossible for
2777 RFC 4347 compliant client to communicate with OpenSSL server.
2778 Unfortunately just fixing these incompatibilities would "cut off"
2779 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2780 server keeps tolerating non RFC compliant syntax. The opposite is
2781 not true, 0.9.8f client can not communicate with earlier server.
2782 This update even addresses CVE-2007-4995.
2785 *) Changes to avoid need for function casts in OpenSSL: some compilers
2786 (gcc 4.2 and later) reject their use.
2787 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2790 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2791 RFC4507bis. The encrypted ticket format is an encrypted encoded
2792 SSL_SESSION structure, that way new session features are automatically
2795 If a client application caches session in an SSL_SESSION structure
2796 support is transparent because tickets are now stored in the encoded
2799 The SSL_CTX structure automatically generates keys for ticket
2800 protection in servers so again support should be possible
2801 with no application modification.
2803 If a client or server wishes to disable RFC4507 support then the option
2804 SSL_OP_NO_TICKET can be set.
2806 Add a TLS extension debugging callback to allow the contents of any client
2807 or server extensions to be examined.
2809 This work was sponsored by Google.
2812 *) Add initial support for TLS extensions, specifically for the server_name
2813 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2814 have new members for a host name. The SSL data structure has an
2815 additional member SSL_CTX *initial_ctx so that new sessions can be
2816 stored in that context to allow for session resumption, even after the
2817 SSL has been switched to a new SSL_CTX in reaction to a client's
2818 server_name extension.
2820 New functions (subject to change):
2822 SSL_get_servername()
2823 SSL_get_servername_type()
2826 New CTRL codes and macros (subject to change):
2828 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2829 - SSL_CTX_set_tlsext_servername_callback()
2830 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2831 - SSL_CTX_set_tlsext_servername_arg()
2832 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2834 openssl s_client has a new '-servername ...' option.
2836 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2837 '-key2 ...', '-servername_fatal' (subject to change). This allows
2838 testing the HostName extension for a specific single host name ('-cert'
2839 and '-key' remain fallbacks for handshakes without HostName
2840 negotiation). If the unrecogninzed_name alert has to be sent, this by
2841 default is a warning; it becomes fatal with the '-servername_fatal'
2844 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2846 *) Add AES and SSE2 assembly language support to VC++ build.
2849 *) Mitigate attack on final subtraction in Montgomery reduction.
2852 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2853 (which previously caused an internal error).
2856 *) Squeeze another 10% out of IGE mode when in != out.
2859 *) AES IGE mode speedup.
2860 [Dean Gaudet (Google)]
2862 *) Add the Korean symmetric 128-bit cipher SEED (see
2863 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2864 add SEED ciphersuites from RFC 4162:
2866 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2867 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2868 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2869 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2871 To minimize changes between patchlevels in the OpenSSL 0.9.8
2872 series, SEED remains excluded from compilation unless OpenSSL
2873 is configured with 'enable-seed'.
2874 [KISA, Bodo Moeller]
2876 *) Mitigate branch prediction attacks, which can be practical if a
2877 single processor is shared, allowing a spy process to extract
2878 information. For detailed background information, see
2879 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2880 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2881 and Necessary Software Countermeasures"). The core of the change
2882 are new versions BN_div_no_branch() and
2883 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2884 respectively, which are slower, but avoid the security-relevant
2885 conditional branches. These are automatically called by BN_div()
2886 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2887 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2888 remove a conditional branch.
2890 BN_FLG_CONSTTIME is the new name for the previous
2891 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2892 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2893 in the exponent causes BN_mod_exp_mont() to use the alternative
2894 implementation in BN_mod_exp_mont_consttime().) The old name
2895 remains as a deprecated alias.
2897 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2898 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2899 constant-time implementations for more than just exponentiation.
2900 Here too the old name is kept as a deprecated alias.
2902 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2903 the BN_BLINDING structure gets an independent copy of the
2904 modulus. This means that the previous "BIGNUM *m" argument to
2905 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2906 essentially becomes "const BIGNUM *m", although we can't actually
2907 change this in the header file before 0.9.9. It allows
2908 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2909 enable BN_FLG_CONSTTIME.
2911 [Matthew D Wood (Intel Corp)]
2913 *) In the SSL/TLS server implementation, be strict about session ID
2914 context matching (which matters if an application uses a single
2915 external cache for different purposes). Previously,
2916 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2917 set. This did ensure strict client verification, but meant that,
2918 with applications using a single external cache for quite
2919 different requirements, clients could circumvent ciphersuite
2920 restrictions for a given session ID context by starting a session
2921 in a different context.
2924 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2925 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2926 authentication-only ciphersuites.
2929 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2930 not complete and could lead to a possible single byte overflow
2931 (CVE-2007-5135) [Ben Laurie]
2933 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2935 *) Since AES128 and AES256 (and similarly Camellia128 and
2936 Camellia256) share a single mask bit in the logic of
2937 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2938 kludge to work properly if AES128 is available and AES256 isn't
2939 (or if Camellia128 is available and Camellia256 isn't).
2942 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2943 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2944 When a point or a seed is encoded in a BIT STRING, we need to
2945 prevent the removal of trailing zero bits to get the proper DER
2946 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2947 of a NamedBitList, for which trailing 0 bits need to be removed.)
2950 *) Have SSL/TLS server implementation tolerate "mismatched" record
2951 protocol version while receiving ClientHello even if the
2952 ClientHello is fragmented. (The server can't insist on the
2953 particular protocol version it has chosen before the ServerHello
2954 message has informed the client about his choice.)
2957 *) Add RFC 3779 support.
2958 [Rob Austein for ARIN, Ben Laurie]
2960 *) Load error codes if they are not already present instead of using a
2961 static variable. This allows them to be cleanly unloaded and reloaded.
2962 Improve header file function name parsing.
2965 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2966 or CAPABILITY handshake as required by RFCs.
2969 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2971 *) Introduce limits to prevent malicious keys being able to
2972 cause a denial of service. (CVE-2006-2940)
2973 [Steve Henson, Bodo Moeller]
2975 *) Fix ASN.1 parsing of certain invalid structures that can result
2976 in a denial of service. (CVE-2006-2937) [Steve Henson]
2978 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2979 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2981 *) Fix SSL client code which could crash if connecting to a
2982 malicious SSLv2 server. (CVE-2006-4343)
2983 [Tavis Ormandy and Will Drewry, Google Security Team]
2985 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2986 match only those. Before that, "AES256-SHA" would be interpreted
2987 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2988 the same strength classification in 0.9.7h) as we currently only
2989 have a single AES bit in the ciphersuite description bitmap.
2990 That change, however, also applied to ciphersuite strings such as
2991 "RC4-MD5" that intentionally matched multiple ciphersuites --
2992 namely, SSL 2.0 ciphersuites in addition to the more common ones
2993 from SSL 3.0/TLS 1.0.
2995 So we change the selection algorithm again: Naming an explicit
2996 ciphersuite selects this one ciphersuite, and any other similar
2997 ciphersuite (same bitmap) from *other* protocol versions.
2998 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2999 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3001 Since SSL 2.0 does not have any ciphersuites for which the
3002 128/256 bit distinction would be relevant, this works for now.
3003 The proper fix will be to use different bits for AES128 and
3004 AES256, which would have avoided the problems from the beginning;
3005 however, bits are scarce, so we can only do this in a new release
3006 (not just a patchlevel) when we can change the SSL_CIPHER
3007 definition to split the single 'unsigned long mask' bitmap into
3008 multiple values to extend the available space.
3012 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3014 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3015 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3017 *) Add AES IGE and biIGE modes.
3020 *) Change the Unix randomness entropy gathering to use poll() when
3021 possible instead of select(), since the latter has some
3022 undesirable limitations.
3023 [Darryl Miles via Richard Levitte and Bodo Moeller]
3025 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3026 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3027 cannot be implicitly activated as part of, e.g., the "AES" alias.
3028 However, please upgrade to OpenSSL 0.9.9[-dev] for
3029 non-experimental use of the ECC ciphersuites to get TLS extension
3030 support, which is required for curve and point format negotiation
3031 to avoid potential handshake problems.
3034 *) Disable rogue ciphersuites:
3036 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3037 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3038 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3040 The latter two were purportedly from
3041 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3044 Also deactivate the remaining ciphersuites from
3045 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3046 unofficial, and the ID has long expired.
3049 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3050 dual-core machines) and other potential thread-safety issues.
3053 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3054 versions), which is now available for royalty-free use
3055 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3056 Also, add Camellia TLS ciphersuites from RFC 4132.
3058 To minimize changes between patchlevels in the OpenSSL 0.9.8
3059 series, Camellia remains excluded from compilation unless OpenSSL
3060 is configured with 'enable-camellia'.
3063 *) Disable the padding bug check when compression is in use. The padding
3064 bug check assumes the first packet is of even length, this is not
3065 necessarily true if compresssion is enabled and can result in false
3066 positives causing handshake failure. The actual bug test is ancient
3067 code so it is hoped that implementations will either have fixed it by
3068 now or any which still have the bug do not support compression.
3071 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3073 *) When applying a cipher rule check to see if string match is an explicit
3074 cipher suite and only match that one cipher suite if it is.
3077 *) Link in manifests for VC++ if needed.
3078 [Austin Ziegler <halostatue@gmail.com>]
3080 *) Update support for ECC-based TLS ciphersuites according to
3081 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3082 TLS extensions, which are supported starting with the 0.9.9
3083 branch, not in the OpenSSL 0.9.8 branch).
3086 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3087 opaque EVP_CIPHER_CTX handling.
3090 *) Fixes and enhancements to zlib compression code. We now only use
3091 "zlib1.dll" and use the default __cdecl calling convention on Win32
3092 to conform with the standards mentioned here:
3093 http://www.zlib.net/DLL_FAQ.txt
3094 Static zlib linking now works on Windows and the new --with-zlib-include
3095 --with-zlib-lib options to Configure can be used to supply the location
3096 of the headers and library. Gracefully handle case where zlib library
3100 *) Several fixes and enhancements to the OID generation code. The old code
3101 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
3102 handle numbers larger than ULONG_MAX, truncated printing and had a
3103 non standard OBJ_obj2txt() behaviour.
3106 *) Add support for building of engines under engine/ as shared libraries
3107 under VC++ build system.
3110 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
3111 Hopefully, we will not see any false combination of paths any more.
3114 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
3116 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3117 (part of SSL_OP_ALL). This option used to disable the
3118 countermeasure against man-in-the-middle protocol-version
3119 rollback in the SSL 2.0 server implementation, which is a bad
3120 idea. (CVE-2005-2969)
3122 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3123 for Information Security, National Institute of Advanced Industrial
3124 Science and Technology [AIST], Japan)]
3126 *) Add two function to clear and return the verify parameter flags.
3129 *) Keep cipherlists sorted in the source instead of sorting them at
3130 runtime, thus removing the need for a lock.
3133 *) Avoid some small subgroup attacks in Diffie-Hellman.
3134 [Nick Mathewson and Ben Laurie]
3136 *) Add functions for well-known primes.
3139 *) Extended Windows CE support.
3140 [Satoshi Nakamura and Andy Polyakov]
3142 *) Initialize SSL_METHOD structures at compile time instead of during
3143 runtime, thus removing the need for a lock.
3146 *) Make PKCS7_decrypt() work even if no certificate is supplied by
3147 attempting to decrypt each encrypted key in turn. Add support to
3151 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
3153 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
3156 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
3159 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
3160 key into the same file any more.
3163 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
3166 *) Add -utf8 command line and config file option to 'ca'.
3167 [Stefan <stf@udoma.org]
3169 *) Removed the macro des_crypt(), as it seems to conflict with some
3170 libraries. Use DES_crypt().
3173 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
3174 involves renaming the source and generated shared-libs for
3175 both. The engines will accept the corrected or legacy ids
3176 ('ncipher' and '4758_cca' respectively) when binding. NB,
3177 this only applies when building 'shared'.
3178 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
3180 *) Add attribute functions to EVP_PKEY structure. Modify
3181 PKCS12_create() to recognize a CSP name attribute and
3182 use it. Make -CSP option work again in pkcs12 utility.
3185 *) Add new functionality to the bn blinding code:
3186 - automatic re-creation of the BN_BLINDING parameters after
3187 a fixed number of uses (currently 32)
3188 - add new function for parameter creation
3189 - introduce flags to control the update behaviour of the
3190 BN_BLINDING parameters
3191 - hide BN_BLINDING structure
3192 Add a second BN_BLINDING slot to the RSA structure to improve
3193 performance when a single RSA object is shared among several
3197 *) Add support for DTLS.
3198 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
3200 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
3201 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
3204 *) Remove buggy and incompletet DH cert support from
3205 ssl/ssl_rsa.c and ssl/s3_both.c
3208 *) Use SHA-1 instead of MD5 as the default digest algorithm for
3209 the apps/openssl applications.
3212 *) Compile clean with "-Wall -Wmissing-prototypes
3213 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
3214 DEBUG_SAFESTACK must also be set.
3217 *) Change ./Configure so that certain algorithms can be disabled by default.
3218 The new counterpiece to "no-xxx" is "enable-xxx".
3220 The patented RC5 and MDC2 algorithms will now be disabled unless
3221 "enable-rc5" and "enable-mdc2", respectively, are specified.
3223 (IDEA remains enabled despite being patented. This is because IDEA
3224 is frequently required for interoperability, and there is no license
3225 fee for non-commercial use. As before, "no-idea" can be used to
3226 avoid this algorithm.)
3230 *) Add processing of proxy certificates (see RFC 3820). This work was
3231 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
3232 EGEE (Enabling Grids for E-science in Europe).
3235 *) RC4 performance overhaul on modern architectures/implementations, such
3236 as Intel P4, IA-64 and AMD64.
3239 *) New utility extract-section.pl. This can be used specify an alternative
3240 section number in a pod file instead of having to treat each file as
3241 a separate case in Makefile. This can be done by adding two lines to the
3244 =for comment openssl_section:XXX
3246 The blank line is mandatory.
3250 *) New arguments -certform, -keyform and -pass for s_client and s_server
3251 to allow alternative format key and certificate files and passphrase
3255 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
3256 update associated structures and add various utility functions.
3258 Add new policy related verify parameters, include policy checking in
3259 standard verify code. Enhance 'smime' application with extra parameters
3260 to support policy checking and print out.
3263 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
3264 Nehemiah processors. These extensions support AES encryption in hardware
3265 as well as RNG (though RNG support is currently disabled).
3266 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
3268 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
3271 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
3272 [Andy Polyakov and a number of other people]
3274 *) Improved PowerPC platform support. Most notably BIGNUM assembler
3275 implementation contributed by IBM.
3276 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
3278 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
3279 exponent rather than 'unsigned long'. There is a corresponding change to
3280 the new 'rsa_keygen' element of the RSA_METHOD structure.
3281 [Jelte Jansen, Geoff Thorpe]
3283 *) Functionality for creating the initial serial number file is now
3284 moved from CA.pl to the 'ca' utility with a new option -create_serial.
3286 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
3287 number file to 1, which is bound to cause problems. To avoid
3288 the problems while respecting compatibility between different 0.9.7
3289 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3290 CA.pl for serial number initialization. With the new release 0.9.8,
3291 we can fix the problem directly in the 'ca' utility.)
3294 *) Reduced header interdepencies by declaring more opaque objects in
3295 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3296 give fewer recursive includes, which could break lazy source code - so
3297 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3298 developers should define this symbol when building and using openssl to
3299 ensure they track the recommended behaviour, interfaces, [etc], but
3300 backwards-compatible behaviour prevails when this isn't defined.
3303 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3306 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3307 This will generate a random key of the appropriate length based on the
3308 cipher context. The EVP_CIPHER can provide its own random key generation
3309 routine to support keys of a specific form. This is used in the des and
3310 3des routines to generate a key of the correct parity. Update S/MIME
3311 code to use new functions and hence generate correct parity DES keys.
3312 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3313 valid (weak or incorrect parity).
3316 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3317 as looking them up. This is useful when the verified structure may contain
3318 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3319 present unless the new PKCS7_NO_CRL flag is asserted.
3322 *) Extend ASN1 oid configuration module. It now additionally accepts the
3325 shortName = some long name, 1.2.3.4
3328 *) Reimplemented the BN_CTX implementation. There is now no more static
3329 limitation on the number of variables it can handle nor the depth of the
3330 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3331 information can now expand as required, and rather than having a single
3332 static array of bignums, BN_CTX now uses a linked-list of such arrays
3333 allowing it to expand on demand whilst maintaining the usefulness of
3334 BN_CTX's "bundling".
3337 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3338 to allow all RSA operations to function using a single BN_CTX.
3341 *) Preliminary support for certificate policy evaluation and checking. This
3342 is initially intended to pass the tests outlined in "Conformance Testing
3343 of Relying Party Client Certificate Path Processing Logic" v1.07.
3346 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3347 remained unused and not that useful. A variety of other little bignum
3348 tweaks and fixes have also been made continuing on from the audit (see
3352 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3353 associated ASN1, EVP and SSL functions and old ASN1 macros.
3356 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3357 and this should never fail. So the return value from the use of
3358 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3359 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3362 *) BN_CTX_get() should return zero-valued bignums, providing the same
3363 initialised value as BN_new().
3364 [Geoff Thorpe, suggested by Ulf Möller]
3366 *) Support for inhibitAnyPolicy certificate extension.
3369 *) An audit of the BIGNUM code is underway, for which debugging code is
3370 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3371 is considered valid when processing BIGNUMs, and causes execution to
3372 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3373 further steps are taken to deliberately pollute unused data in BIGNUM
3374 structures to try and expose faulty code further on. For now, openssl will
3375 (in its default mode of operation) continue to tolerate the inconsistent
3376 forms that it has tolerated in the past, but authors and packagers should
3377 consider trying openssl and their own applications when compiled with
3378 these debugging symbols defined. It will help highlight potential bugs in
3379 their own code, and will improve the test coverage for OpenSSL itself. At
3380 some point, these tighter rules will become openssl's default to improve
3381 maintainability, though the assert()s and other overheads will remain only
3382 in debugging configurations. See bn.h for more details.
3383 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3385 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3386 that can only be obtained through BN_CTX_new() (which implicitly
3387 initialises it). The presence of this function only made it possible
3388 to overwrite an existing structure (and cause memory leaks).
3391 *) Because of the callback-based approach for implementing LHASH as a
3392 template type, lh_insert() adds opaque objects to hash-tables and
3393 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3394 to clean up those corresponding objects before destroying the hash table
3395 (and losing the object pointers). So some over-zealous constifications in
3396 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3397 objects as "const" and the lh_doall[_arg] callback wrappers are not
3398 prototyped to have "const" restrictions on the object pointers they are
3399 given (and so aren't required to cast them away any more).
3402 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3403 (speed) prefers to use its own implementation. The two implementations
3404 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3405 its object type properly exposed (MS_TM) instead of casting to/from "char
3406 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3407 aren't necessarily the greatest nomenclatures - but this is what was used
3408 internally to the implementation so I've used that for now.
3411 *) Ensure that deprecated functions do not get compiled when
3412 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3413 the self-tests were still using deprecated key-generation functions so
3414 these have been updated also.
3417 *) Reorganise PKCS#7 code to separate the digest location functionality
3418 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3419 New function PKCS7_set_digest() to set the digest type for PKCS#7
3420 digestedData type. Add additional code to correctly generate the
3421 digestedData type and add support for this type in PKCS7 initialization
3425 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3426 structure of type "other".
3429 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3430 sure the loop does correctly stop and breaking ("division by zero")
3431 modulus operations are not performed. The (pre-generated) prime
3432 table crypto/bn/bn_prime.h was already correct, but it could not be
3433 re-generated on some platforms because of the "division by zero"
3434 situation in the script.
3435 [Ralf S. Engelschall]
3437 *) Update support for ECC-based TLS ciphersuites according to
3438 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3439 SHA-1 now is only used for "small" curves (where the
3440 representation of a field element takes up to 24 bytes); for
3441 larger curves, the field element resulting from ECDH is directly
3442 used as premaster secret.
3443 [Douglas Stebila (Sun Microsystems Laboratories)]
3445 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3446 curve secp160r1 to the tests.
3447 [Douglas Stebila (Sun Microsystems Laboratories)]
3449 *) Add the possibility to load symbols globally with DSO.
3450 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3452 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3453 control of the error stack.
3456 *) Add support for STORE in ENGINE.
3459 *) Add the STORE type. The intention is to provide a common interface
3460 to certificate and key stores, be they simple file-based stores, or
3461 HSM-type store, or LDAP stores, or...
3462 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3465 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3466 pass a list of arguments to any function as well as provide a way
3467 for a function to pass data back to the caller.
3470 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3471 works like BUF_strdup() but can be used to duplicate a portion of
3472 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3476 *) Add the function sk_find_ex() which works like sk_find(), but will
3477 return an index to an element even if an exact match couldn't be
3478 found. The index is guaranteed to point at the element where the
3479 searched-for key would be inserted to preserve sorting order.
3482 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3483 takes an extra flags argument for optional functionality. Currently,
3484 the following flags are defined:
3486 OBJ_BSEARCH_VALUE_ON_NOMATCH
3487 This one gets OBJ_bsearch_ex() to return a pointer to the first
3488 element where the comparing function returns a negative or zero
3491 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3492 This one gets OBJ_bsearch_ex() to return a pointer to the first
3493 element where the comparing function returns zero. This is useful
3494 if there are more than one element where the comparing function
3498 *) Make it possible to create self-signed certificates with 'openssl ca'
3499 in such a way that the self-signed certificate becomes part of the
3500 CA database and uses the same mechanisms for serial number generation
3501 as all other certificate signing. The new flag '-selfsign' enables
3502 this functionality. Adapt CA.sh and CA.pl.in.
3505 *) Add functionality to check the public key of a certificate request
3506 against a given private. This is useful to check that a certificate
3507 request can be signed by that key (self-signing).
3510 *) Make it possible to have multiple active certificates with the same
3511 subject in the CA index file. This is done only if the keyword
3512 'unique_subject' is set to 'no' in the main CA section (default
3513 if 'CA_default') of the configuration file. The value is saved
3514 with the database itself in a separate index attribute file,
3515 named like the index file with '.attr' appended to the name.
3518 *) Generate muti valued AVAs using '+' notation in config files for
3522 *) Support for nameConstraints certificate extension.
3525 *) Support for policyConstraints certificate extension.
3528 *) Support for policyMappings certificate extension.
3531 *) Make sure the default DSA_METHOD implementation only uses its
3532 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3533 and change its own handlers to be NULL so as to remove unnecessary
3534 indirection. This lets alternative implementations fallback to the
3535 default implementation more easily.
3538 *) Support for directoryName in GeneralName related extensions
3542 *) Make it possible to link applications using Makefile.shared.
3543 Make that possible even when linking against static libraries!
3546 *) Support for single pass processing for S/MIME signing. This now
3547 means that S/MIME signing can be done from a pipe, in addition
3548 cleartext signing (multipart/signed type) is effectively streaming
3549 and the signed data does not need to be all held in memory.
3551 This is done with a new flag PKCS7_STREAM. When this flag is set
3552 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3553 is done after the data is output (and digests calculated) in
3554 SMIME_write_PKCS7().
3557 *) Add full support for -rpath/-R, both in shared libraries and
3558 applications, at least on the platforms where it's known how
3562 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3563 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3564 will now compute a table of multiples of the generator that
3565 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3566 faster (notably in the case of a single point multiplication,
3567 scalar * generator).
3568 [Nils Larsch, Bodo Moeller]
3570 *) IPv6 support for certificate extensions. The various extensions
3571 which use the IP:a.b.c.d can now take IPv6 addresses using the
3572 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3576 *) Added an ENGINE that implements RSA by performing private key
3577 exponentiations with the GMP library. The conversions to and from
3578 GMP's mpz_t format aren't optimised nor are any montgomery forms
3579 cached, and on x86 it appears OpenSSL's own performance has caught up.
3580 However there are likely to be other architectures where GMP could
3581 provide a boost. This ENGINE is not built in by default, but it can be
3582 specified at Configure time and should be accompanied by the necessary
3583 linker additions, eg;
3584 ./config -DOPENSSL_USE_GMP -lgmp
3587 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3588 testing availability of engines with "-t" - the old behaviour is
3589 produced by increasing the feature's verbosity with "-tt".
3592 *) ECDSA routines: under certain error conditions uninitialized BN objects
3593 could be freed. Solution: make sure initialization is performed early
3594 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3598 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3599 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3600 software implementations. For DSA and DH, parameter generation can
3601 also be overriden by providing the appropriate method callbacks.
3604 *) Change the "progress" mechanism used in key-generation and
3605 primality testing to functions that take a new BN_GENCB pointer in
3606 place of callback/argument pairs. The new API functions have "_ex"
3607 postfixes and the older functions are reimplemented as wrappers for
3608 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3609 declarations of the old functions to help (graceful) attempts to
3610 migrate to the new functions. Also, the new key-generation API
3611 functions operate on a caller-supplied key-structure and return
3612 success/failure rather than returning a key or NULL - this is to
3613 help make "keygen" another member function of RSA_METHOD etc.
3615 Example for using the new callback interface:
3617 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3621 BN_GENCB_set(&my_cb, my_callback, my_arg);
3623 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3624 /* For the meaning of a, b in calls to my_callback(), see the
3625 * documentation of the function that calls the callback.
3626 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3627 * my_callback should return 1 if it wants BN_is_prime_ex()
3628 * to continue, or 0 to stop.
3633 *) Change the ZLIB compression method to be stateful, and make it
3634 available to TLS with the number defined in
3635 draft-ietf-tls-compression-04.txt.
3638 *) Add the ASN.1 structures and functions for CertificatePair, which
3639 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3641 CertificatePair ::= SEQUENCE {
3642 forward [0] Certificate OPTIONAL,
3643 reverse [1] Certificate OPTIONAL,
3644 -- at least one of the pair shall be present -- }
3646 Also implement the PEM functions to read and write certificate
3647 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3649 This needed to be defined, mostly for the sake of the LDAP
3650 attribute crossCertificatePair, but may prove useful elsewhere as
3654 *) Make it possible to inhibit symlinking of shared libraries in
3655 Makefile.shared, for Cygwin's sake.
3658 *) Extend the BIGNUM API by creating a function
3659 void BN_set_negative(BIGNUM *a, int neg);
3660 and a macro that behave like
3661 int BN_is_negative(const BIGNUM *a);
3663 to avoid the need to access 'a->neg' directly in applications.
3666 *) Implement fast modular reduction for pseudo-Mersenne primes
3667 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3668 EC_GROUP_new_curve_GFp() will now automatically use this
3670 [Nils Larsch <nla@trustcenter.de>]
3672 *) Add new lock type (CRYPTO_LOCK_BN).
3675 *) Change the ENGINE framework to automatically load engines
3676 dynamically from specific directories unless they could be
3677 found to already be built in or loaded. Move all the
3678 current engines except for the cryptodev one to a new
3680 The engines in engines/ are built as shared libraries if
3681 the "shared" options was given to ./Configure or ./config.
3682 Otherwise, they are inserted in libcrypto.a.
3683 /usr/local/ssl/engines is the default directory for dynamic
3684 engines, but that can be overriden at configure time through
3685 the usual use of --prefix and/or --openssldir, and at run
3686 time with the environment variable OPENSSL_ENGINES.
3687 [Geoff Thorpe and Richard Levitte]
3689 *) Add Makefile.shared, a helper makefile to build shared
3690 libraries. Addapt Makefile.org.
3693 *) Add version info to Win32 DLLs.
3694 [Peter 'Luna' Runestig" <peter@runestig.com>]
3696 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3697 can be added using this API to created arbitrary PKCS#12
3698 files while avoiding the low level API.
3700 New options to PKCS12_create(), key or cert can be NULL and
3701 will then be omitted from the output file. The encryption
3702 algorithm NIDs can be set to -1 for no encryption, the mac
3703 iteration count can be set to 0 to omit the mac.
3705 Enhance pkcs12 utility by making the -nokeys and -nocerts
3706 options work when creating a PKCS#12 file. New option -nomac
3707 to omit the mac, NONE can be set for an encryption algorithm.
3708 New code is modified to use the enhanced PKCS12_create()
3709 instead of the low level API.
3712 *) Extend ASN1 encoder to support indefinite length constructed
3713 encoding. This can output sequences tags and octet strings in
3714 this form. Modify pk7_asn1.c to support indefinite length
3715 encoding. This is experimental and needs additional code to
3716 be useful, such as an ASN1 bio and some enhanced streaming
3719 Extend template encode functionality so that tagging is passed
3720 down to the template encoder.
3723 *) Let 'openssl req' fail if an argument to '-newkey' is not
3724 recognized instead of using RSA as a default.
3727 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3728 As these are not official, they are not included in "ALL";
3729 the "ECCdraft" ciphersuite group alias can be used to select them.
3730 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3732 *) Add ECDH engine support.
3733 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3735 *) Add ECDH in new directory crypto/ecdh/.
3736 [Douglas Stebila (Sun Microsystems Laboratories)]
3738 *) Let BN_rand_range() abort with an error after 100 iterations
3739 without success (which indicates a broken PRNG).
3742 *) Change BN_mod_sqrt() so that it verifies that the input value
3743 is really the square of the return value. (Previously,
3744 BN_mod_sqrt would show GIGO behaviour.)
3747 *) Add named elliptic curves over binary fields from X9.62, SECG,
3748 and WAP/WTLS; add OIDs that were still missing.
3750 [Sheueling Chang Shantz and Douglas Stebila
3751 (Sun Microsystems Laboratories)]
3753 *) Extend the EC library for elliptic curves over binary fields
3754 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3757 EC_GF2m_simple_method
3761 EC_GROUP_new_curve_GF2m
3762 EC_GROUP_set_curve_GF2m
3763 EC_GROUP_get_curve_GF2m
3764 EC_POINT_set_affine_coordinates_GF2m
3765 EC_POINT_get_affine_coordinates_GF2m
3766 EC_POINT_set_compressed_coordinates_GF2m
3768 Point compression for binary fields is disabled by default for
3769 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3772 As binary polynomials are represented as BIGNUMs, various members
3773 of the EC_GROUP and EC_POINT data structures can be shared
3774 between the implementations for prime fields and binary fields;
3775 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3776 are essentially identical to their ..._GFp counterparts.
3777 (For simplicity, the '..._GFp' prefix has been dropped from
3778 various internal method names.)
3780 An internal 'field_div' method (similar to 'field_mul' and
3781 'field_sqr') has been added; this is used only for binary fields.
3783 [Sheueling Chang Shantz and Douglas Stebila
3784 (Sun Microsystems Laboratories)]
3786 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3787 through methods ('mul', 'precompute_mult').
3789 The generic implementations (now internally called 'ec_wNAF_mul'
3790 and 'ec_wNAF_precomputed_mult') remain the default if these
3791 methods are undefined.
3793 [Sheueling Chang Shantz and Douglas Stebila
3794 (Sun Microsystems Laboratories)]
3796 *) New function EC_GROUP_get_degree, which is defined through
3797 EC_METHOD. For curves over prime fields, this returns the bit
3798 length of the modulus.
3800 [Sheueling Chang Shantz and Douglas Stebila
3801 (Sun Microsystems Laboratories)]
3803 *) New functions EC_GROUP_dup, EC_POINT_dup.
3804 (These simply call ..._new and ..._copy).
3806 [Sheueling Chang Shantz and Douglas Stebila
3807 (Sun Microsystems Laboratories)]
3809 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3810 Polynomials are represented as BIGNUMs (where the sign bit is not
3811 used) in the following functions [macros]:
3814 BN_GF2m_sub [= BN_GF2m_add]
3815 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3816 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3817 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3819 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3820 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3821 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3822 BN_GF2m_cmp [= BN_ucmp]
3824 (Note that only the 'mod' functions are actually for fields GF(2^m).
3825 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3827 For some functions, an the irreducible polynomial defining a
3828 field can be given as an 'unsigned int[]' with strictly
3829 decreasing elements giving the indices of those bits that are set;
3830 i.e., p[] represents the polynomial
3831 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3833 p[0] > p[1] > ... > p[k] = 0.
3834 This applies to the following functions:
3839 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3840 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3842 BN_GF2m_mod_sqrt_arr
3843 BN_GF2m_mod_solve_quad_arr
3847 Conversion can be performed by the following functions:
3852 bntest.c has additional tests for binary polynomial arithmetic.
3854 Two implementations for BN_GF2m_mod_div() are available.
3855 The default algorithm simply uses BN_GF2m_mod_inv() and
3856 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3857 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3858 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3860 [Sheueling Chang Shantz and Douglas Stebila
3861 (Sun Microsystems Laboratories)]
3863 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3864 functionality is disabled at compile-time.
3865 [Douglas Stebila <douglas.stebila@sun.com>]
3867 *) Change default behaviour of 'openssl asn1parse' so that more
3868 information is visible when viewing, e.g., a certificate:
3870 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3871 mode the content of non-printable OCTET STRINGs is output in a
3872 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3873 avoid the appearance of a printable string.
3874 [Nils Larsch <nla@trustcenter.de>]
3876 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3878 EC_GROUP_set_asn1_flag()
3879 EC_GROUP_get_asn1_flag()
3880 EC_GROUP_set_point_conversion_form()
3881 EC_GROUP_get_point_conversion_form()
3882 These control ASN1 encoding details:
3883 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3884 has been set to OPENSSL_EC_NAMED_CURVE.
3885 - Points are encoded in uncompressed form by default; options for
3886 asn1_for are as for point2oct, namely
3887 POINT_CONVERSION_COMPRESSED
3888 POINT_CONVERSION_UNCOMPRESSED
3889 POINT_CONVERSION_HYBRID
3891 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3894 EC_GROUP_get0_seed()
3895 EC_GROUP_get_seed_len()
3896 This is used only for ASN1 purposes (so far).
3897 [Nils Larsch <nla@trustcenter.de>]
3899 *) Add 'field_type' member to EC_METHOD, which holds the NID
3900 of the appropriate field type OID. The new function
3901 EC_METHOD_get_field_type() returns this value.
3902 [Nils Larsch <nla@trustcenter.de>]
3907 EC_POINT_point2hex()
3908 EC_POINT_hex2point()
3909 providing useful interfaces to EC_POINT_point2oct() and
3910 EC_POINT_oct2point().
3911 [Nils Larsch <nla@trustcenter.de>]
3913 *) Change internals of the EC library so that the functions
3914 EC_GROUP_set_generator()
3915 EC_GROUP_get_generator()
3916 EC_GROUP_get_order()
3917 EC_GROUP_get_cofactor()
3918 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3919 to methods, which would lead to unnecessary code duplication when
3920 adding different types of curves.
3921 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3923 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3924 arithmetic, and such that modified wNAFs are generated
3925 (which avoid length expansion in many cases).
3928 *) Add a function EC_GROUP_check_discriminant() (defined via
3929 EC_METHOD) that verifies that the curve discriminant is non-zero.
3931 Add a function EC_GROUP_check() that makes some sanity tests
3932 on a EC_GROUP, its generator and order. This includes
3933 EC_GROUP_check_discriminant().
3934 [Nils Larsch <nla@trustcenter.de>]
3936 *) Add ECDSA in new directory crypto/ecdsa/.
3938 Add applications 'openssl ecparam' and 'openssl ecdsa'
3939 (these are based on 'openssl dsaparam' and 'openssl dsa').
3941 ECDSA support is also included in various other files across the
3942 library. Most notably,
3943 - 'openssl req' now has a '-newkey ecdsa:file' option;
3944 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3945 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3946 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3947 them suitable for ECDSA where domain parameters must be
3948 extracted before the specific public key;
3949 - ECDSA engine support has been added.
3950 [Nils Larsch <nla@trustcenter.de>]
3952 *) Include some named elliptic curves, and add OIDs from X9.62,
3953 SECG, and WAP/WTLS. Each curve can be obtained from the new
3955 EC_GROUP_new_by_curve_name(),
3956 and the list of available named curves can be obtained with
3957 EC_get_builtin_curves().
3958 Also add a 'curve_name' member to EC_GROUP objects, which can be
3960 EC_GROUP_set_curve_name()
3961 EC_GROUP_get_curve_name()
3962 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3964 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3965 was actually never needed) and in BN_mul(). The removal in BN_mul()
3966 required a small change in bn_mul_part_recursive() and the addition
3967 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3968 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3969 bn_sub_words() and bn_add_words() except they take arrays with
3973 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3975 *) Cleanse PEM buffers before freeing them since they may contain
3977 [Benjamin Bennett <ben@psc.edu>]
3979 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3980 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3981 authentication-only ciphersuites.
3984 *) Since AES128 and AES256 share a single mask bit in the logic of
3985 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3986 kludge to work properly if AES128 is available and AES256 isn't.
3989 *) Expand security boundary to match 1.1.1 module.
3992 *) Remove redundant features: hash file source, editing of test vectors
3993 modify fipsld to use external fips_premain.c signature.
3996 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3997 run algorithm test programs.
4000 *) Make algorithm test programs more tolerant of whitespace.
4003 *) Have SSL/TLS server implementation tolerate "mismatched" record
4004 protocol version while receiving ClientHello even if the
4005 ClientHello is fragmented. (The server can't insist on the
4006 particular protocol version it has chosen before the ServerHello
4007 message has informed the client about his choice.)
4010 *) Load error codes if they are not already present instead of using a
4011 static variable. This allows them to be cleanly unloaded and reloaded.
4014 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4016 *) Introduce limits to prevent malicious keys being able to
4017 cause a denial of service. (CVE-2006-2940)
4018 [Steve Henson, Bodo Moeller]
4020 *) Fix ASN.1 parsing of certain invalid structures that can result
4021 in a denial of service. (CVE-2006-2937) [Steve Henson]
4023 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4024 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4026 *) Fix SSL client code which could crash if connecting to a
4027 malicious SSLv2 server. (CVE-2006-4343)
4028 [Tavis Ormandy and Will Drewry, Google Security Team]
4030 *) Change ciphersuite string processing so that an explicit
4031 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4032 will no longer include "AES128-SHA"), and any other similar
4033 ciphersuite (same bitmap) from *other* protocol versions (so that
4034 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4035 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4036 changes from 0.9.8b and 0.9.8d.
4039 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4041 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4042 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4044 *) Change the Unix randomness entropy gathering to use poll() when
4045 possible instead of select(), since the latter has some
4046 undesirable limitations.
4047 [Darryl Miles via Richard Levitte and Bodo Moeller]
4049 *) Disable rogue ciphersuites:
4051 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4052 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4053 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4055 The latter two were purportedly from
4056 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4059 Also deactive the remaining ciphersuites from
4060 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4061 unofficial, and the ID has long expired.
4064 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4065 dual-core machines) and other potential thread-safety issues.
4068 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4070 *) Adapt fipsld and the build system to link against the validated FIPS
4071 module in FIPS mode.
4074 *) Fixes for VC++ 2005 build under Windows.
4077 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4078 from a Windows bash shell such as MSYS. It is autodetected from the
4079 "config" script when run from a VC++ environment. Modify standard VC++
4080 build to use fipscanister.o from the GNU make build.
4083 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4085 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4086 The value now differs depending on if you build for FIPS or not.
4087 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4088 safely run with a non-FIPSed libcrypto, as it may crash because of
4089 the difference induced by this change.
4092 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4094 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4095 (part of SSL_OP_ALL). This option used to disable the
4096 countermeasure against man-in-the-middle protocol-version
4097 rollback in the SSL 2.0 server implementation, which is a bad
4098 idea. (CVE-2005-2969)
4100 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4101 for Information Security, National Institute of Advanced Industrial
4102 Science and Technology [AIST], Japan)]
4104 *) Minimal support for X9.31 signatures and PSS padding modes. This is
4105 mainly for FIPS compliance and not fully integrated at this stage.
4108 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
4109 the exponentiation using a fixed-length exponent. (Otherwise,
4110 the information leaked through timing could expose the secret key
4111 after many signatures; cf. Bleichenbacher's attack on DSA with
4115 *) Make a new fixed-window mod_exp implementation the default for
4116 RSA, DSA, and DH private-key operations so that the sequence of
4117 squares and multiplies and the memory access pattern are
4118 independent of the particular secret key. This will mitigate
4119 cache-timing and potential related attacks.
4121 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
4122 and this is automatically used by BN_mod_exp_mont() if the new flag
4123 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
4124 will use this BN flag for private exponents unless the flag
4125 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
4126 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
4128 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
4130 *) Change the client implementation for SSLv23_method() and
4131 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
4132 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
4133 (Previously, the SSL 2.0 backwards compatible Client Hello
4134 message format would be used even with SSL_OP_NO_SSLv2.)
4137 *) Add support for smime-type MIME parameter in S/MIME messages which some
4141 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
4142 a threadsafe manner. Modify rsa code to use new function and add calls
4143 to dsa and dh code (which had race conditions before).
4146 *) Include the fixed error library code in the C error file definitions
4147 instead of fixing them up at runtime. This keeps the error code
4148 structures constant.
4151 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
4153 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
4156 *) Fixes for newer kerberos headers. NB: the casts are needed because
4157 the 'length' field is signed on one version and unsigned on another
4158 with no (?) obvious way to tell the difference, without these VC++
4159 complains. Also the "definition" of FAR (blank) is no longer included
4160 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
4161 some needed definitions.
4164 *) Undo Cygwin change.
4167 *) Added support for proxy certificates according to RFC 3820.
4168 Because they may be a security thread to unaware applications,
4169 they must be explicitely allowed in run-time. See
4170 docs/HOWTO/proxy_certificates.txt for further information.
4173 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
4175 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
4176 server and client random values. Previously
4177 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
4178 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
4180 This change has negligible security impact because:
4182 1. Server and client random values still have 24 bytes of pseudo random
4185 2. Server and client random values are sent in the clear in the initial
4188 3. The master secret is derived using the premaster secret (48 bytes in
4189 size for static RSA ciphersuites) as well as client server and random
4192 The OpenSSL team would like to thank the UK NISCC for bringing this issue
4195 [Stephen Henson, reported by UK NISCC]
4197 *) Use Windows randomness collection on Cygwin.
4200 *) Fix hang in EGD/PRNGD query when communication socket is closed
4201 prematurely by EGD/PRNGD.
4202 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
4204 *) Prompt for pass phrases when appropriate for PKCS12 input format.
4207 *) Back-port of selected performance improvements from development
4208 branch, as well as improved support for PowerPC platforms.
4211 *) Add lots of checks for memory allocation failure, error codes to indicate
4212 failure and freeing up memory if a failure occurs.
4213 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
4215 *) Add new -passin argument to dgst.
4218 *) Perform some character comparisons of different types in X509_NAME_cmp:
4219 this is needed for some certificates that reencode DNs into UTF8Strings
4220 (in violation of RFC3280) and can't or wont issue name rollover
4224 *) Make an explicit check during certificate validation to see that
4225 the CA setting in each certificate on the chain is correct. As a
4226 side effect always do the following basic checks on extensions,
4227 not just when there's an associated purpose to the check:
4229 - if there is an unhandled critical extension (unless the user
4230 has chosen to ignore this fault)
4231 - if the path length has been exceeded (if one is set at all)
4232 - that certain extensions fit the associated purpose (if one has
4236 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
4238 *) Avoid a race condition when CRLs are checked in a multi threaded
4239 environment. This would happen due to the reordering of the revoked
4240 entries during signature checking and serial number lookup. Now the
4241 encoding is cached and the serial number sort performed under a lock.
4242 Add new STACK function sk_is_sorted().
4245 *) Add Delta CRL to the extension code.
4248 *) Various fixes to s3_pkt.c so alerts are sent properly.
4249 [David Holmes <d.holmes@f5.com>]
4251 *) Reduce the chances of duplicate issuer name and serial numbers (in
4252 violation of RFC3280) using the OpenSSL certificate creation utilities.
4253 This is done by creating a random 64 bit value for the initial serial
4254 number when a serial number file is created or when a self signed
4255 certificate is created using 'openssl req -x509'. The initial serial
4256 number file is created using 'openssl x509 -next_serial' in CA.pl
4257 rather than being initialized to 1.
4260 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
4262 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4263 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4264 [Joe Orton, Steve Henson]
4266 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
4268 [Joe Orton, Steve Henson]
4270 *) Make it possible to have multiple active certificates with the same
4271 subject in the CA index file. This is done only if the keyword
4272 'unique_subject' is set to 'no' in the main CA section (default
4273 if 'CA_default') of the configuration file. The value is saved
4274 with the database itself in a separate index attribute file,
4275 named like the index file with '.attr' appended to the name.
4278 *) X509 verify fixes. Disable broken certificate workarounds when
4279 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
4280 keyUsage extension present. Don't accept CRLs with unhandled critical
4281 extensions: since verify currently doesn't process CRL extensions this
4282 rejects a CRL with *any* critical extensions. Add new verify error codes
4286 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
4287 A clarification of RFC2560 will require the use of OCTET STRINGs and
4288 some implementations cannot handle the current raw format. Since OpenSSL
4289 copies and compares OCSP nonces as opaque blobs without any attempt at
4290 parsing them this should not create any compatibility issues.
4293 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4294 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4295 this HMAC (and other) operations are several times slower than OpenSSL
4299 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4300 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4302 *) Use the correct content when signing type "other".
4305 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4307 *) Fix various bugs revealed by running the NISCC test suite:
4309 Stop out of bounds reads in the ASN1 code when presented with
4310 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4312 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4314 If verify callback ignores invalid public key errors don't try to check
4315 certificate signature with the NULL public key.
4319 *) New -ignore_err option in ocsp application to stop the server
4320 exiting on the first error in a request.
4323 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4324 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4328 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4329 extra data after the compression methods not only for TLS 1.0
4330 but also for SSL 3.0 (as required by the specification).
4331 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4333 *) Change X509_certificate_type() to mark the key as exported/exportable
4334 when it's 512 *bits* long, not 512 bytes.
4337 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4338 blocks during encryption.
4341 *) Various fixes to base64 BIO and non blocking I/O. On write
4342 flushes were not handled properly if the BIO retried. On read
4343 data was not being buffered properly and had various logic bugs.
4344 This also affects blocking I/O when the data being decoded is a
4348 *) Various S/MIME bugfixes and compatibility changes:
4349 output correct application/pkcs7 MIME type if
4350 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4351 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4352 of files as .eml work). Correctly handle very long lines in MIME
4356 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4358 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4359 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4360 a protocol version number mismatch like a decryption error
4361 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4364 *) Turn on RSA blinding by default in the default implementation
4365 to avoid a timing attack. Applications that don't want it can call
4366 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4367 They would be ill-advised to do so in most cases.
4368 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4370 *) Change RSA blinding code so that it works when the PRNG is not
4371 seeded (in this case, the secret RSA exponent is abused as
4372 an unpredictable seed -- if it is not unpredictable, there
4373 is no point in blinding anyway). Make RSA blinding thread-safe
4374 by remembering the creator's thread ID in rsa->blinding and
4375 having all other threads use local one-time blinding factors
4376 (this requires more computation than sharing rsa->blinding, but
4377 avoids excessive locking; and if an RSA object is not shared
4378 between threads, blinding will still be very fast).
4381 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4382 ENGINE as defaults for all supported algorithms irrespective of
4383 the 'flags' parameter. 'flags' is now honoured, so applications
4384 should make sure they are passing it correctly.
4387 *) Target "mingw" now allows native Windows code to be generated in
4388 the Cygwin environment as well as with the MinGW compiler.
4391 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4393 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4394 via timing by performing a MAC computation even if incorrrect
4395 block cipher padding has been found. This is a countermeasure
4396 against active attacks where the attacker has to distinguish
4397 between bad padding and a MAC verification error. (CVE-2003-0078)
4399 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4400 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4401 Martin Vuagnoux (EPFL, Ilion)]
4403 *) Make the no-err option work as intended. The intention with no-err
4404 is not to have the whole error stack handling routines removed from
4405 libcrypto, it's only intended to remove all the function name and
4406 reason texts, thereby removing some of the footprint that may not
4407 be interesting if those errors aren't displayed anyway.
4409 NOTE: it's still possible for any application or module to have it's
4410 own set of error texts inserted. The routines are there, just not
4411 used by default when no-err is given.
4414 *) Add support for FreeBSD on IA64.
4415 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4417 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4418 Kerberos function mit_des_cbc_cksum(). Before this change,
4419 the value returned by DES_cbc_cksum() was like the one from
4420 mit_des_cbc_cksum(), except the bytes were swapped.
4421 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4423 *) Allow an application to disable the automatic SSL chain building.
4424 Before this a rather primitive chain build was always performed in
4425 ssl3_output_cert_chain(): an application had no way to send the
4426 correct chain if the automatic operation produced an incorrect result.
4428 Now the chain builder is disabled if either:
4430 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4432 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4434 The reasoning behind this is that an application would not want the
4435 auto chain building to take place if extra chain certificates are
4436 present and it might also want a means of sending no additional
4437 certificates (for example the chain has two certificates and the
4441 *) Add the possibility to build without the ENGINE framework.
4442 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4444 *) Under Win32 gmtime() can return NULL: check return value in
4445 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4448 *) DSA routines: under certain error conditions uninitialized BN objects
4449 could be freed. Solution: make sure initialization is performed early
4450 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4451 Nils Larsch <nla@trustcenter.de> via PR#459)
4454 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4455 checked on reconnect on the client side, therefore session resumption
4456 could still fail with a "ssl session id is different" error. This
4457 behaviour is masked when SSL_OP_ALL is used due to
4458 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4459 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4460 followup to PR #377.
4463 *) IA-32 assembler support enhancements: unified ELF targets, support
4464 for SCO/Caldera platforms, fix for Cygwin shared build.
4467 *) Add support for FreeBSD on sparc64. As a consequence, support for
4468 FreeBSD on non-x86 processors is separate from x86 processors on
4469 the config script, much like the NetBSD support.
4470 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4472 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4474 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4477 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4478 code (06) was taken as the first octet of the session ID and the last
4479 octet was ignored consequently. As a result SSLv2 client side session
4480 caching could not have worked due to the session ID mismatch between
4482 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4486 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4487 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4491 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4492 seems that in spite of existing for more than a year, many application
4493 author have done nothing to provide the necessary callbacks, which
4494 means that this particular engine will not work properly anywhere.
4495 This is a very unfortunate situation which forces us, in the name
4496 of usability, to give the hw_ncipher.c a static lock, which is part
4498 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4499 appear in 0.9.8 or later. We EXPECT application authors to have
4500 dealt properly with this when 0.9.8 is released (unless we actually
4501 make such changes in the libcrypto locking code that changes will
4502 have to be made anyway).
4505 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4506 octets have been read, EOF or an error occurs. Without this change
4507 some truncated ASN1 structures will not produce an error.
4510 *) Disable Heimdal support, since it hasn't been fully implemented.
4511 Still give the possibility to force the use of Heimdal, but with
4512 warnings and a request that patches get sent to openssl-dev.
4515 *) Add the VC-CE target, introduce the WINCE sysname, and add
4516 INSTALL.WCE and appropriate conditionals to make it build.
4517 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4519 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4520 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4521 edit numbers of the version.
4522 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4524 *) Introduce safe string copy and catenation functions
4525 (BUF_strlcpy() and BUF_strlcat()).
4526 [Ben Laurie (CHATS) and Richard Levitte]
4528 *) Avoid using fixed-size buffers for one-line DNs.
4529 [Ben Laurie (CHATS)]
4531 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4532 resizing buffers containing secrets, and use where appropriate.
4533 [Ben Laurie (CHATS)]
4535 *) Avoid using fixed size buffers for configuration file location.
4536 [Ben Laurie (CHATS)]
4538 *) Avoid filename truncation for various CA files.
4539 [Ben Laurie (CHATS)]
4541 *) Use sizeof in preference to magic numbers.
4542 [Ben Laurie (CHATS)]
4544 *) Avoid filename truncation in cert requests.
4545 [Ben Laurie (CHATS)]
4547 *) Add assertions to check for (supposedly impossible) buffer
4549 [Ben Laurie (CHATS)]
4551 *) Don't cache truncated DNS entries in the local cache (this could
4552 potentially lead to a spoofing attack).
4553 [Ben Laurie (CHATS)]
4555 *) Fix various buffers to be large enough for hex/decimal
4556 representations in a platform independent manner.
4557 [Ben Laurie (CHATS)]
4559 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4560 resizing buffers containing secrets, and use where appropriate.
4561 [Ben Laurie (CHATS)]
4563 *) Add BIO_indent() to avoid much slightly worrying code to do
4565 [Ben Laurie (CHATS)]
4567 *) Convert sprintf()/BIO_puts() to BIO_printf().
4568 [Ben Laurie (CHATS)]
4570 *) buffer_gets() could terminate with the buffer only half
4572 [Ben Laurie (CHATS)]
4574 *) Add assertions to prevent user-supplied crypto functions from
4575 overflowing internal buffers by having large block sizes, etc.
4576 [Ben Laurie (CHATS)]
4578 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4580 [Ben Laurie (CHATS)]
4582 *) Eliminate unused copy of key in RC4.
4583 [Ben Laurie (CHATS)]
4585 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4586 [Ben Laurie (CHATS)]
4588 *) Fix off-by-one error in EGD path.
4589 [Ben Laurie (CHATS)]
4591 *) If RANDFILE path is too long, ignore instead of truncating.
4592 [Ben Laurie (CHATS)]
4594 *) Eliminate unused and incorrectly sized X.509 structure
4596 [Ben Laurie (CHATS)]
4598 *) Eliminate unused and dangerous function knumber().
4599 [Ben Laurie (CHATS)]
4601 *) Eliminate unused and dangerous structure, KSSL_ERR.
4602 [Ben Laurie (CHATS)]
4604 *) Protect against overlong session ID context length in an encoded
4605 session object. Since these are local, this does not appear to be
4607 [Ben Laurie (CHATS)]
4609 *) Change from security patch (see 0.9.6e below) that did not affect
4610 the 0.9.6 release series:
4612 Remote buffer overflow in SSL3 protocol - an attacker could
4613 supply an oversized master key in Kerberos-enabled versions.
4615 [Ben Laurie (CHATS)]
4617 *) Change the SSL kerb5 codes to match RFC 2712.
4620 *) Make -nameopt work fully for req and add -reqopt switch.
4621 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4623 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4624 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4626 *) Make sure tests can be performed even if the corresponding algorithms
4627 have been removed entirely. This was also the last step to make
4628 OpenSSL compilable with DJGPP under all reasonable conditions.
4629 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4631 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4632 to allow version independent disabling of normally unselected ciphers,
4633 which may be activated as a side-effect of selecting a single cipher.
4635 (E.g., cipher list string "RSA" enables ciphersuites that are left
4636 out of "ALL" because they do not provide symmetric encryption.
4637 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4638 [Lutz Jaenicke, Bodo Moeller]
4640 *) Add appropriate support for separate platform-dependent build
4641 directories. The recommended way to make a platform-dependent
4642 build directory is the following (tested on Linux), maybe with
4645 # Place yourself outside of the OpenSSL source tree. In
4646 # this example, the environment variable OPENSSL_SOURCE
4647 # is assumed to contain the absolute OpenSSL source directory.
4648 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4649 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4650 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4651 mkdir -p `dirname $F`
4652 ln -s $OPENSSL_SOURCE/$F $F
4655 To be absolutely sure not to disturb the source tree, a "make clean"
4656 is a good thing. If it isn't successfull, don't worry about it,
4657 it probably means the source directory is very clean.
4660 *) Make sure any ENGINE control commands make local copies of string
4661 pointers passed to them whenever necessary. Otherwise it is possible
4662 the caller may have overwritten (or deallocated) the original string
4663 data when a later ENGINE operation tries to use the stored values.
4664 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4666 *) Improve diagnostics in file reading and command-line digests.
4667 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4669 *) Add AES modes CFB and OFB to the object database. Correct an
4670 error in AES-CFB decryption.
4673 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4674 allows existing EVP_CIPHER_CTX structures to be reused after
4675 calling EVP_*Final(). This behaviour is used by encryption
4676 BIOs and some applications. This has the side effect that
4677 applications must explicitly clean up cipher contexts with
4678 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4681 *) Check the values of dna and dnb in bn_mul_recursive before calling
4682 bn_mul_comba (a non zero value means the a or b arrays do not contain
4683 n2 elements) and fallback to bn_mul_normal if either is not zero.
4686 *) Fix escaping of non-ASCII characters when using the -subj option
4687 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4690 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4691 form for "surname", serialNumber has no short form.
4692 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4693 therefore remove "mail" short name for "internet 7".
4694 The OID for unique identifiers in X509 certificates is
4695 x500UniqueIdentifier, not uniqueIdentifier.
4696 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4699 *) Add an "init" command to the ENGINE config module and auto initialize
4700 ENGINEs. Without any "init" command the ENGINE will be initialized
4701 after all ctrl commands have been executed on it. If init=1 the
4702 ENGINE is initailized at that point (ctrls before that point are run
4703 on the uninitialized ENGINE and after on the initialized one). If
4704 init=0 then the ENGINE will not be iniatialized at all.
4707 *) Fix the 'app_verify_callback' interface so that the user-defined
4708 argument is actually passed to the callback: In the
4709 SSL_CTX_set_cert_verify_callback() prototype, the callback
4710 declaration has been changed from
4713 int (*cb)(X509_STORE_CTX *,void *);
4714 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4715 i=s->ctx->app_verify_callback(&ctx)
4716 has been changed into
4717 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4719 To update applications using SSL_CTX_set_cert_verify_callback(),
4720 a dummy argument can be added to their callback functions.
4721 [D. K. Smetters <smetters@parc.xerox.com>]
4723 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4724 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4726 *) Add and OPENSSL_LOAD_CONF define which will cause
4727 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4728 This allows older applications to transparently support certain
4729 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4730 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4731 load the config file and OPENSSL_add_all_algorithms_conf() which will
4732 always load it have also been added.
4735 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4736 Adjust NIDs and EVP layer.
4737 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4739 *) Config modules support in openssl utility.
4741 Most commands now load modules from the config file,
4742 though in a few (such as version) this isn't done
4743 because it couldn't be used for anything.
4745 In the case of ca and req the config file used is
4746 the same as the utility itself: that is the -config
4747 command line option can be used to specify an
4751 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4752 use "openssl_conf" if filename is NULL use default openssl config file.
4755 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4756 config section name. Add a new flag to tolerate a missing config file
4757 and move code to CONF_modules_load_file().
4760 *) Support for crypto accelerator cards from Accelerated Encryption
4761 Processing, www.aep.ie. (Use engine 'aep')
4762 The support was copied from 0.9.6c [engine] and adapted/corrected
4763 to work with the new engine framework.
4764 [AEP Inc. and Richard Levitte]
4766 *) Support for SureWare crypto accelerator cards from Baltimore
4767 Technologies. (Use engine 'sureware')
4768 The support was copied from 0.9.6c [engine] and adapted
4769 to work with the new engine framework.
4772 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4773 make the newer ENGINE framework commands for the CHIL engine work.
4774 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4776 *) Make it possible to produce shared libraries on ReliantUNIX.
4777 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4779 *) Add the configuration target debug-linux-ppro.
4780 Make 'openssl rsa' use the general key loading routines
4781 implemented in apps.c, and make those routines able to
4782 handle the key format FORMAT_NETSCAPE and the variant
4784 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4786 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4787 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4789 *) Add -keyform to rsautl, and document -engine.
4790 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4792 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4793 BIO_R_NO_SUCH_FILE error code rather than the generic
4794 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4797 *) Add new functions
4799 ERR_peek_last_error_line
4800 ERR_peek_last_error_line_data.
4801 These are similar to
4804 ERR_peek_error_line_data,
4805 but report on the latest error recorded rather than the first one
4806 still in the error queue.
4807 [Ben Laurie, Bodo Moeller]
4809 *) default_algorithms option in ENGINE config module. This allows things
4811 default_algorithms = ALL
4812 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4815 *) Prelminary ENGINE config module.
4818 *) New experimental application configuration code.
4821 *) Change the AES code to follow the same name structure as all other
4822 symmetric ciphers, and behave the same way. Move everything to
4823 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4824 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4826 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4827 [Ben Laurie and Theo de Raadt]
4829 *) Add option to output public keys in req command.
4830 [Massimiliano Pala madwolf@openca.org]
4832 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4833 (up to about 10% better than before for P-192 and P-224).
4836 *) New functions/macros
4838 SSL_CTX_set_msg_callback(ctx, cb)
4839 SSL_CTX_set_msg_callback_arg(ctx, arg)
4840 SSL_set_msg_callback(ssl, cb)
4841 SSL_set_msg_callback_arg(ssl, arg)
4843 to request calling a callback function
4845 void cb(int write_p, int version, int content_type,
4846 const void *buf, size_t len, SSL *ssl, void *arg)
4848 whenever a protocol message has been completely received
4849 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4850 protocol version according to which the SSL library interprets
4851 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4852 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4853 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4854 specification (change_cipher_spec(20), alert(21), handshake(22)).
4855 'buf' and 'len' point to the actual message, 'ssl' to the
4856 SSL object, and 'arg' is the application-defined value set by
4857 SSL[_CTX]_set_msg_callback_arg().
4859 'openssl s_client' and 'openssl s_server' have new '-msg' options
4860 to enable a callback that displays all protocol messages.
4863 *) Change the shared library support so shared libraries are built as
4864 soon as the corresponding static library is finished, and thereby get
4865 openssl and the test programs linked against the shared library.
4866 This still only happens when the keyword "shard" has been given to
4867 the configuration scripts.
4869 NOTE: shared library support is still an experimental thing, and
4870 backward binary compatibility is still not guaranteed.
4871 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4873 *) Add support for Subject Information Access extension.
4874 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4876 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4877 additional bytes when new memory had to be allocated, not just
4878 when reusing an existing buffer.
4881 *) New command line and configuration option 'utf8' for the req command.
4882 This allows field values to be specified as UTF8 strings.
4885 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4886 runs for the former and machine-readable output for the latter.
4889 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4890 of the e-mail address in the DN (i.e., it will go into a certificate
4891 extension only). The new configuration file option 'email_in_dn = no'
4892 has the same effect.
4893 [Massimiliano Pala madwolf@openca.org]
4895 *) Change all functions with names starting with des_ to be starting
4896 with DES_ instead. Add wrappers that are compatible with libdes,
4897 but are named _ossl_old_des_*. Finally, add macros that map the
4898 des_* symbols to the corresponding _ossl_old_des_* if libdes
4899 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4900 desired, the des_* symbols will be mapped to DES_*, with one
4903 Since we provide two compatibility mappings, the user needs to
4904 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4905 compatibility is desired. The default (i.e., when that macro
4906 isn't defined) is OpenSSL 0.9.6c compatibility.
4908 There are also macros that enable and disable the support of old
4909 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4910 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4911 are defined, the default will apply: to support the old des routines.
4913 In either case, one must include openssl/des.h to get the correct
4914 definitions. Do not try to just include openssl/des_old.h, that
4917 NOTE: This is a major break of an old API into a new one. Software
4918 authors are encouraged to switch to the DES_ style functions. Some
4919 time in the future, des_old.h and the libdes compatibility functions
4920 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4921 default), and then completely removed.
4924 *) Test for certificates which contain unsupported critical extensions.
4925 If such a certificate is found during a verify operation it is
4926 rejected by default: this behaviour can be overridden by either
4927 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4928 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4929 X509_supported_extension() has also been added which returns 1 if a
4930 particular extension is supported.
4933 *) Modify the behaviour of EVP cipher functions in similar way to digests
4934 to retain compatibility with existing code.
4937 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4938 compatibility with existing code. In particular the 'ctx' parameter does
4939 not have to be to be initialized before the call to EVP_DigestInit() and
4940 it is tidied up after a call to EVP_DigestFinal(). New function
4941 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4942 EVP_MD_CTX_copy() changed to not require the destination to be
4943 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4944 requires the destination to be valid.
4946 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4947 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4950 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4951 so that complete 'Handshake' protocol structures are kept in memory
4952 instead of overwriting 'msg_type' and 'length' with 'body' data.
4955 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4956 [Massimo Santin via Richard Levitte]
4958 *) Major restructuring to the underlying ENGINE code. This includes
4959 reduction of linker bloat, separation of pure "ENGINE" manipulation
4960 (initialisation, etc) from functionality dealing with implementations
4961 of specific crypto iterfaces. This change also introduces integrated
4962 support for symmetric ciphers and digest implementations - so ENGINEs
4963 can now accelerate these by providing EVP_CIPHER and EVP_MD
4964 implementations of their own. This is detailed in crypto/engine/README
4965 as it couldn't be adequately described here. However, there are a few
4966 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4967 were changed in the original introduction of ENGINE code have now
4968 reverted back - the hooking from this code to ENGINE is now a good
4969 deal more passive and at run-time, operations deal directly with
4970 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4971 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4972 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4973 they were not being used by the framework as there is no concept of a
4974 BIGNUM_METHOD and they could not be generalised to the new
4975 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4976 ENGINE_cpy() has been removed as it cannot be consistently defined in
4980 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4983 *) Change mkdef.pl to sort symbols that get the same entry number,
4984 and make sure the automatically generated functions ERR_load_*
4985 become part of libeay.num as well.
4988 *) New function SSL_renegotiate_pending(). This returns true once
4989 renegotiation has been requested (either SSL_renegotiate() call
4990 or HelloRequest/ClientHello receveived from the peer) and becomes
4991 false once a handshake has been completed.
4992 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4993 sends a HelloRequest, but does not ensure that a handshake takes
4994 place. SSL_renegotiate_pending() is useful for checking if the
4995 client has followed the request.)
4998 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4999 By default, clients may request session resumption even during
5000 renegotiation (if session ID contexts permit); with this option,
5001 session resumption is possible only in the first handshake.
5003 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5004 more bits available for options that should not be part of
5005 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5008 *) Add some demos for certificate and certificate request creation.
5011 *) Make maximum certificate chain size accepted from the peer application
5012 settable (SSL*_get/set_max_cert_list()), as proposed by
5013 "Douglas E. Engert" <deengert@anl.gov>.
5016 *) Add support for shared libraries for Unixware-7
5017 (Boyd Lynn Gerber <gerberb@zenez.com>).
5020 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5021 be done prior to destruction. Use this to unload error strings from
5022 ENGINEs that load their own error strings. NB: This adds two new API
5023 functions to "get" and "set" this destroy handler in an ENGINE.
5026 *) Alter all existing ENGINE implementations (except "openssl" and
5027 "openbsd") to dynamically instantiate their own error strings. This
5028 makes them more flexible to be built both as statically-linked ENGINEs
5029 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5030 Also, add stub code to each that makes building them as self-contained
5031 shared-libraries easier (see README.ENGINE).
5034 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5035 implementations into applications that are completely implemented in
5036 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5037 commands that can be used to configure what shared-library to load and
5038 to control aspects of the way it is handled. Also, made an update to
5039 the README.ENGINE file that brings its information up-to-date and
5040 provides some information and instructions on the "dynamic" ENGINE
5041 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5044 *) Make it possible to unload ranges of ERR strings with a new
5045 "ERR_unload_strings" function.
5048 *) Add a copy() function to EVP_MD.
5051 *) Make EVP_MD routines take a context pointer instead of just the
5052 md_data void pointer.
5055 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5056 that the digest can only process a single chunk of data
5057 (typically because it is provided by a piece of
5058 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5059 is only going to provide a single chunk of data, and hence the
5060 framework needn't accumulate the data for oneshot drivers.
5063 *) As with "ERR", make it possible to replace the underlying "ex_data"
5064 functions. This change also alters the storage and management of global
5065 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5066 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5067 index counters. The API functions that use this state have been changed
5068 to take a "class_index" rather than pointers to the class's local STACK
5069 and counter, and there is now an API function to dynamically create new
5070 classes. This centralisation allows us to (a) plug a lot of the
5071 thread-safety problems that existed, and (b) makes it possible to clean
5072 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5073 such data would previously have always leaked in application code and
5074 workarounds were in place to make the memory debugging turn a blind eye
5075 to it. Application code that doesn't use this new function will still
5076 leak as before, but their memory debugging output will announce it now
5077 rather than letting it slide.
5079 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5080 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5081 has a return value to indicate success or failure.
5084 *) Make it possible to replace the underlying "ERR" functions such that the
5085 global state (2 LHASH tables and 2 locks) is only used by the "default"
5086 implementation. This change also adds two functions to "get" and "set"
5087 the implementation prior to it being automatically set the first time
5088 any other ERR function takes place. Ie. an application can call "get",
5089 pass the return value to a module it has just loaded, and that module
5090 can call its own "set" function using that value. This means the
5091 module's "ERR" operations will use (and modify) the error state in the
5092 application and not in its own statically linked copy of OpenSSL code.
5095 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5096 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5097 the operation, and provides a more encapsulated way for external code
5098 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5099 to use these functions rather than manually incrementing the counts.
5101 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
5104 *) Add EVP test program.
5107 *) Add symmetric cipher support to ENGINE. Expect the API to change!
5110 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
5111 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
5112 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
5113 These allow a CRL to be built without having to access X509_CRL fields
5114 directly. Modify 'ca' application to use new functions.
5117 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
5118 bug workarounds. Rollback attack detection is a security feature.
5119 The problem will only arise on OpenSSL servers when TLSv1 is not
5120 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
5121 Software authors not wanting to support TLSv1 will have special reasons
5122 for their choice and can explicitly enable this option.
5123 [Bodo Moeller, Lutz Jaenicke]
5125 *) Rationalise EVP so it can be extended: don't include a union of
5126 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
5127 (similar to those existing for EVP_CIPHER_CTX).
5132 EVP_MD_CTX_init(&md); /* new function call */
5133 EVP_DigestInit(&md, EVP_sha1());
5134 EVP_DigestUpdate(&md, in, len);
5135 EVP_DigestFinal(&md, out, NULL);
5136 EVP_MD_CTX_cleanup(&md); /* new function call */
5140 *) Make DES key schedule conform to the usual scheme, as well as
5141 correcting its structure. This means that calls to DES functions
5142 now have to pass a pointer to a des_key_schedule instead of a
5143 plain des_key_schedule (which was actually always a pointer
5146 des_key_schedule ks;
5148 des_set_key_checked(..., &ks);
5149 des_ncbc_encrypt(..., &ks, ...);
5151 (Note that a later change renames 'des_...' into 'DES_...'.)
5154 *) Initial reduction of linker bloat: the use of some functions, such as
5155 PEM causes large amounts of unused functions to be linked in due to
5156 poor organisation. For example pem_all.c contains every PEM function
5157 which has a knock on effect of linking in large amounts of (unused)
5158 ASN1 code. Grouping together similar functions and splitting unrelated
5159 functions prevents this.
5162 *) Cleanup of EVP macros.
5165 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
5166 correct _ecb suffix.
5169 *) Add initial OCSP responder support to ocsp application. The
5170 revocation information is handled using the text based index
5171 use by the ca application. The responder can either handle
5172 requests generated internally, supplied in files (for example
5173 via a CGI script) or using an internal minimal server.
5176 *) Add configuration choices to get zlib compression for TLS.
5179 *) Changes to Kerberos SSL for RFC 2712 compliance:
5180 1. Implemented real KerberosWrapper, instead of just using
5181 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
5182 2. Implemented optional authenticator field of KerberosWrapper.
5184 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
5185 and authenticator structs; see crypto/krb5/.
5187 Generalized Kerberos calls to support multiple Kerberos libraries.
5188 [Vern Staats <staatsvr@asc.hpc.mil>,
5189 Jeffrey Altman <jaltman@columbia.edu>
5190 via Richard Levitte]
5192 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
5193 already does with RSA. testdsa.h now has 'priv_key/pub_key'
5194 values for each of the key sizes rather than having just
5195 parameters (and 'speed' generating keys each time).
5198 *) Speed up EVP routines.
5201 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
5202 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
5203 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
5204 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
5206 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
5207 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
5208 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
5211 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
5213 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
5216 *) Added the OS2-EMX target.
5217 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
5219 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
5220 to support NCONF routines in extension code. New function CONF_set_nconf()
5221 to allow functions which take an NCONF to also handle the old LHASH
5222 structure: this means that the old CONF compatible routines can be
5223 retained (in particular wrt extensions) without having to duplicate the
5224 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
5227 *) Enhance the general user interface with mechanisms for inner control
5228 and with possibilities to have yes/no kind of prompts.
5231 *) Change all calls to low level digest routines in the library and
5232 applications to use EVP. Add missing calls to HMAC_cleanup() and
5233 don't assume HMAC_CTX can be copied using memcpy().
5234 [Verdon Walker <VWalker@novell.com>, Steve Henson]
5236 *) Add the possibility to control engines through control names but with
5237 arbitrary arguments instead of just a string.
5238 Change the key loaders to take a UI_METHOD instead of a callback
5239 function pointer. NOTE: this breaks binary compatibility with earlier
5240 versions of OpenSSL [engine].
5241 Adapt the nCipher code for these new conditions and add a card insertion
5245 *) Enhance the general user interface with mechanisms to better support
5246 dialog box interfaces, application-defined prompts, the possibility
5247 to use defaults (for example default passwords from somewhere else)
5248 and interrupts/cancellations.
5251 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
5252 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
5255 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
5256 tidy up some unnecessarily weird code in 'sk_new()').
5257 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
5259 *) Change the key loading routines for ENGINEs to use the same kind
5260 callback (pem_password_cb) as all other routines that need this
5264 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
5265 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
5266 than this minimum value is recommended.
5269 *) New random seeder for OpenVMS, using the system process statistics
5270 that are easily reachable.
5273 *) Windows apparently can't transparently handle global
5274 variables defined in DLLs. Initialisations such as:
5276 const ASN1_ITEM *it = &ASN1_INTEGER_it;
5278 wont compile. This is used by the any applications that need to
5279 declare their own ASN1 modules. This was fixed by adding the option
5280 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
5281 needed for static libraries under Win32.
5284 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
5285 setting of purpose and trust fields. New X509_STORE trust and
5286 purpose functions and tidy up setting in other SSL functions.
5289 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5290 structure. These are inherited by X509_STORE_CTX when it is
5291 initialised. This allows various defaults to be set in the
5292 X509_STORE structure (such as flags for CRL checking and custom
5293 purpose or trust settings) for functions which only use X509_STORE_CTX
5294 internally such as S/MIME.
5296 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5297 trust settings if they are not set in X509_STORE. This allows X509_STORE
5298 purposes and trust (in S/MIME for example) to override any set by default.
5300 Add command line options for CRL checking to smime, s_client and s_server
5304 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5305 are set then the CRL is looked up in the X509_STORE structure and
5306 its validity and signature checked, then if the certificate is found
5307 in the CRL the verify fails with a revoked error.
5309 Various new CRL related callbacks added to X509_STORE_CTX structure.
5311 Command line options added to 'verify' application to support this.
5313 This needs some additional work, such as being able to handle multiple
5314 CRLs with different times, extension based lookup (rather than just
5315 by subject name) and ultimately more complete V2 CRL extension
5319 *) Add a general user interface API (crypto/ui/). This is designed
5320 to replace things like des_read_password and friends (backward
5321 compatibility functions using this new API are provided).
5322 The purpose is to remove prompting functions from the DES code
5323 section as well as provide for prompting through dialog boxes in
5324 a window system and the like.
5327 *) Add "ex_data" support to ENGINE so implementations can add state at a
5328 per-structure level rather than having to store it globally.
5331 *) Make it possible for ENGINE structures to be copied when retrieved by
5332 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5333 This causes the "original" ENGINE structure to act like a template,
5334 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5335 operational state can be localised to each ENGINE structure, despite the
5336 fact they all share the same "methods". New ENGINE structures returned in
5337 this case have no functional references and the return value is the single
5338 structural reference. This matches the single structural reference returned
5339 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5343 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5344 needs to match any other type at all we need to manually clear the
5348 *) Changes to the "openssl engine" utility to include;
5349 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5350 about an ENGINE's available control commands.
5351 - executing control commands from command line arguments using the
5352 '-pre' and '-post' switches. '-post' is only used if '-t' is
5353 specified and the ENGINE is successfully initialised. The syntax for
5354 the individual commands are colon-separated, for example;
5355 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5358 *) New dynamic control command support for ENGINEs. ENGINEs can now
5359 declare their own commands (numbers), names (strings), descriptions,
5360 and input types for run-time discovery by calling applications. A
5361 subset of these commands are implicitly classed as "executable"
5362 depending on their input type, and only these can be invoked through
5363 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5364 can be based on user input, config files, etc). The distinction is
5365 that "executable" commands cannot return anything other than a boolean
5366 result and can only support numeric or string input, whereas some
5367 discoverable commands may only be for direct use through
5368 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5369 pointers, or other custom uses. The "executable" commands are to
5370 support parameterisations of ENGINE behaviour that can be
5371 unambiguously defined by ENGINEs and used consistently across any
5372 OpenSSL-based application. Commands have been added to all the
5373 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5374 control over shared-library paths without source code alterations.
5377 *) Changed all ENGINE implementations to dynamically allocate their
5378 ENGINEs rather than declaring them statically. Apart from this being
5379 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5380 this also allows the implementations to compile without using the
5381 internal engine_int.h header.
5384 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5385 'const' value. Any code that should be able to modify a RAND_METHOD
5386 should already have non-const pointers to it (ie. they should only
5387 modify their own ones).
5390 *) Made a variety of little tweaks to the ENGINE code.
5391 - "atalla" and "ubsec" string definitions were moved from header files
5392 to C code. "nuron" string definitions were placed in variables
5393 rather than hard-coded - allowing parameterisation of these values
5394 later on via ctrl() commands.
5395 - Removed unused "#if 0"'d code.
5396 - Fixed engine list iteration code so it uses ENGINE_free() to release
5397 structural references.
5398 - Constified the RAND_METHOD element of ENGINE structures.
5399 - Constified various get/set functions as appropriate and added
5400 missing functions (including a catch-all ENGINE_cpy that duplicates
5401 all ENGINE values onto a new ENGINE except reference counts/state).
5402 - Removed NULL parameter checks in get/set functions. Setting a method
5403 or function to NULL is a way of cancelling out a previously set
5404 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5405 and doesn't justify the extra error symbols and code.
5406 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5407 flags from engine_int.h to engine.h.
5408 - Changed prototypes for ENGINE handler functions (init(), finish(),
5409 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5412 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5413 to the algorithm using long division. The binary algorithm can be
5414 used only if the modulus is odd. On 32-bit systems, it is faster
5415 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5416 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5417 up to 450 bits. In 64-bit environments, the binary algorithm
5418 appears to be advantageous for much longer moduli; here we use it
5419 for moduli up to 2048 bits.
5422 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5423 could not support the combine flag in choice fields.
5426 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5427 extensions from a certificate request to the certificate.
5430 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5431 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5432 file: this allows the display of the certificate about to be
5433 signed to be customised, to allow certain fields to be included
5434 or excluded and extension details. The old system didn't display
5435 multicharacter strings properly, omitted fields not in the policy
5436 and couldn't display additional details such as extensions.
5439 *) Function EC_POINTs_mul for multiple scalar multiplication
5440 of an arbitrary number of elliptic curve points
5441 \sum scalars[i]*points[i],
5442 optionally including the generator defined for the EC_GROUP:
5443 scalar*generator + \sum scalars[i]*points[i].
5445 EC_POINT_mul is a simple wrapper function for the typical case
5446 that the point list has just one item (besides the optional
5450 *) First EC_METHODs for curves over GF(p):
5452 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5453 operations and provides various method functions that can also
5454 operate with faster implementations of modular arithmetic.
5456 EC_GFp_mont_method() reuses most functions that are part of
5457 EC_GFp_simple_method, but uses Montgomery arithmetic.
5459 [Bodo Moeller; point addition and point doubling
5460 implementation directly derived from source code provided by
5461 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5463 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5464 crypto/ec/ec_lib.c):
5466 Curves are EC_GROUP objects (with an optional group generator)
5467 based on EC_METHODs that are built into the library.
5469 Points are EC_POINT objects based on EC_GROUP objects.
5471 Most of the framework would be able to handle curves over arbitrary
5472 finite fields, but as there are no obvious types for fields other
5473 than GF(p), some functions are limited to that for now.
5476 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5477 that the file contains a complete HTTP response.
5480 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5481 change the def and num file printf format specifier from "%-40sXXX"
5482 to "%-39s XXX". The latter will always guarantee a space after the
5483 field while the former will cause them to run together if the field
5484 is 40 of more characters long.
5487 *) Constify the cipher and digest 'method' functions and structures
5488 and modify related functions to take constant EVP_MD and EVP_CIPHER
5492 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5493 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5496 *) Modify EVP_Digest*() routines so they now return values. Although the
5497 internal software routines can never fail additional hardware versions
5501 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5503 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5504 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5507 ERR_R_NESTED_ASN1_ERROR
5509 ERR_R_MISSING_ASN1_EOS
5510 were 4 .. 9, conflicting with
5511 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5513 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5514 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5516 Add new error code 'ERR_R_INTERNAL_ERROR'.
5519 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5523 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5524 sets the subject name for a new request or supersedes the
5525 subject name in a given request. Formats that can be parsed are
5526 'CN=Some Name, OU=myOU, C=IT'
5528 'CN=Some Name/OU=myOU/C=IT'.
5530 Add options '-batch' and '-verbose' to 'openssl req'.
5531 [Massimiliano Pala <madwolf@hackmasters.net>]
5533 *) Introduce the possibility to access global variables through
5534 functions on platform were that's the best way to handle exporting
5535 global variables in shared libraries. To enable this functionality,
5536 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5537 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5538 is normally done by Configure or something similar).
5540 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5541 in the source file (foo.c) like this:
5543 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5544 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5546 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5547 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5549 OPENSSL_DECLARE_GLOBAL(int,foo);
5550 #define foo OPENSSL_GLOBAL_REF(foo)
5551 OPENSSL_DECLARE_GLOBAL(double,bar);
5552 #define bar OPENSSL_GLOBAL_REF(bar)
5554 The #defines are very important, and therefore so is including the
5555 header file everywhere where the defined globals are used.
5557 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5558 of ASN.1 items, but that structure is a bit different.
5560 The largest change is in util/mkdef.pl which has been enhanced with
5561 better and easier to understand logic to choose which symbols should
5562 go into the Windows .def files as well as a number of fixes and code
5563 cleanup (among others, algorithm keywords are now sorted
5564 lexicographically to avoid constant rewrites).
5567 *) In BN_div() keep a copy of the sign of 'num' before writing the
5568 result to 'rm' because if rm==num the value will be overwritten
5569 and produce the wrong result if 'num' is negative: this caused
5570 problems with BN_mod() and BN_nnmod().
5573 *) Function OCSP_request_verify(). This checks the signature on an
5574 OCSP request and verifies the signer certificate. The signer
5575 certificate is just checked for a generic purpose and OCSP request
5579 *) Add OCSP_check_validity() function to check the validity of OCSP
5580 responses. OCSP responses are prepared in real time and may only
5581 be a few seconds old. Simply checking that the current time lies
5582 between thisUpdate and nextUpdate max reject otherwise valid responses
5583 caused by either OCSP responder or client clock inaccuracy. Instead
5584 we allow thisUpdate and nextUpdate to fall within a certain period of
5585 the current time. The age of the response can also optionally be
5586 checked. Two new options -validity_period and -status_age added to
5590 *) If signature or public key algorithm is unrecognized print out its
5591 OID rather that just UNKNOWN.
5594 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5595 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5596 ID to be generated from the issuer certificate alone which can then be
5597 passed to OCSP_id_issuer_cmp().
5600 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5601 ASN1 modules to export functions returning ASN1_ITEM pointers
5602 instead of the ASN1_ITEM structures themselves. This adds several
5603 new macros which allow the underlying ASN1 function/structure to
5604 be accessed transparently. As a result code should not use ASN1_ITEM
5605 references directly (such as &X509_it) but instead use the relevant
5606 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5607 use of the new ASN1 code on platforms where exporting structures
5608 is problematical (for example in shared libraries) but exporting
5609 functions returning pointers to structures is not.
5612 *) Add support for overriding the generation of SSL/TLS session IDs.
5613 These callbacks can be registered either in an SSL_CTX or per SSL.
5614 The purpose of this is to allow applications to control, if they wish,
5615 the arbitrary values chosen for use as session IDs, particularly as it
5616 can be useful for session caching in multiple-server environments. A
5617 command-line switch for testing this (and any client code that wishes
5618 to use such a feature) has been added to "s_server".
5619 [Geoff Thorpe, Lutz Jaenicke]
5621 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5622 of the form '#if defined(...) || defined(...) || ...' and
5623 '#if !defined(...) && !defined(...) && ...'. This also avoids
5624 the growing number of special cases it was previously handling.
5627 *) Make all configuration macros available for application by making
5628 sure they are available in opensslconf.h, by giving them names starting
5629 with "OPENSSL_" to avoid conflicts with other packages and by making
5630 sure e_os2.h will cover all platform-specific cases together with
5632 Additionally, it is now possible to define configuration/platform-
5633 specific names (called "system identities"). In the C code, these
5634 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5635 macro with the name beginning with "OPENSSL_SYS_", which is determined
5636 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5640 *) New option -set_serial to 'req' and 'x509' this allows the serial
5641 number to use to be specified on the command line. Previously self
5642 signed certificates were hard coded with serial number 0 and the
5643 CA options of 'x509' had to use a serial number in a file which was
5647 *) New options to 'ca' utility to support V2 CRL entry extensions.
5648 Currently CRL reason, invalidity date and hold instruction are
5649 supported. Add new CRL extensions to V3 code and some new objects.
5652 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5653 disable standard block padding (aka PKCS#5 padding) in the EVP
5654 API, which was previously mandatory. This means that the data is
5655 not padded in any way and so the total length much be a multiple
5656 of the block size, otherwise an error occurs.
5659 *) Initial (incomplete) OCSP SSL support.
5662 *) New function OCSP_parse_url(). This splits up a URL into its host,
5663 port and path components: primarily to parse OCSP URLs. New -url
5664 option to ocsp utility.
5667 *) New nonce behavior. The return value of OCSP_check_nonce() now
5668 reflects the various checks performed. Applications can decide
5669 whether to tolerate certain situations such as an absent nonce
5670 in a response when one was present in a request: the ocsp application
5671 just prints out a warning. New function OCSP_add1_basic_nonce()
5672 this is to allow responders to include a nonce in a response even if
5673 the request is nonce-less.
5676 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5677 skipped when using openssl x509 multiple times on a single input file,
5678 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5681 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5682 set string type: to handle setting ASN1_TIME structures. Fix ca
5683 utility to correctly initialize revocation date of CRLs.
5686 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5687 the clients preferred ciphersuites and rather use its own preferences.
5688 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5689 Internet Explorer by ensuring unchanged hash method during stepup.
5690 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5693 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5694 to aes and add a new 'exist' option to print out symbols that don't
5698 *) Additional options to ocsp utility to allow flags to be set and
5699 additional certificates supplied.
5702 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5703 OCSP client a number of certificate to only verify the response
5707 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5708 handle the new API. Currently only ECB, CBC modes supported. Add new
5711 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5712 Encryption Standard (AES) Ciphersuites for Transport Layer
5713 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5714 not enabled by default and were not part of the "ALL" ciphersuite
5715 alias because they were not yet official; they could be
5716 explicitly requested by specifying the "AESdraft" ciphersuite
5717 group alias. In the final release of OpenSSL 0.9.7, the group
5718 alias is called "AES" and is part of "ALL".)
5719 [Ben Laurie, Steve Henson, Bodo Moeller]
5721 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5722 request to response.
5725 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5726 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5727 extract information from a certificate request. OCSP_response_create()
5728 creates a response and optionally adds a basic response structure.
5729 OCSP_basic_add1_status() adds a complete single response to a basic
5730 response and returns the OCSP_SINGLERESP structure just added (to allow
5731 extensions to be included for example). OCSP_basic_add1_cert() adds a
5732 certificate to a basic response and OCSP_basic_sign() signs a basic
5733 response with various flags. New helper functions ASN1_TIME_check()
5734 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5735 (converts ASN1_TIME to GeneralizedTime).
5738 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5739 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5740 structure from a certificate. X509_pubkey_digest() digests the public_key
5741 contents: this is used in various key identifiers.
5744 *) Make sk_sort() tolerate a NULL argument.
5745 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5747 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5748 passed by the function are trusted implicitly. If any of them signed the
5749 response then it is assumed to be valid and is not verified.
5752 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5753 to data. This was previously part of the PKCS7 ASN1 code. This
5754 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5755 [Steve Henson, reported by Kenneth R. Robinette
5756 <support@securenetterm.com>]
5758 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5759 routines: without these tracing memory leaks is very painful.
5760 Fix leaks in PKCS12 and PKCS7 routines.
5763 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5764 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5765 effectively meant GeneralizedTime would never be used. Now it
5766 is initialised to -1 but X509_time_adj() now has to check the value
5767 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5768 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5769 [Steve Henson, reported by Kenneth R. Robinette
5770 <support@securenetterm.com>]
5772 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5773 result in a zero length in the ASN1_INTEGER structure which was
5774 not consistent with the structure when d2i_ASN1_INTEGER() was used
5775 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5776 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5777 where it did not print out a minus for negative ASN1_INTEGER.
5780 *) Add summary printout to ocsp utility. The various functions which
5781 convert status values to strings have been renamed to:
5782 OCSP_response_status_str(), OCSP_cert_status_str() and
5783 OCSP_crl_reason_str() and are no longer static. New options
5784 to verify nonce values and to disable verification. OCSP response
5785 printout format cleaned up.
5788 *) Add additional OCSP certificate checks. These are those specified
5789 in RFC2560. This consists of two separate checks: the CA of the
5790 certificate being checked must either be the OCSP signer certificate
5791 or the issuer of the OCSP signer certificate. In the latter case the
5792 OCSP signer certificate must contain the OCSP signing extended key
5793 usage. This check is performed by attempting to match the OCSP
5794 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5795 in the OCSP_CERTID structures of the response.
5798 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5799 and related routines. This uses the standard OpenSSL certificate
5800 verify routines to perform initial checks (just CA validity) and
5801 to obtain the certificate chain. Then additional checks will be
5802 performed on the chain. Currently the root CA is checked to see
5803 if it is explicitly trusted for OCSP signing. This is used to set
5804 a root CA as a global signing root: that is any certificate that
5805 chains to that CA is an acceptable OCSP signing certificate.
5808 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5809 extensions from a separate configuration file.
5810 As when reading extensions from the main configuration file,
5811 the '-extensions ...' option may be used for specifying the
5813 [Massimiliano Pala <madwolf@comune.modena.it>]
5815 *) New OCSP utility. Allows OCSP requests to be generated or
5816 read. The request can be sent to a responder and the output
5817 parsed, outputed or printed in text form. Not complete yet:
5818 still needs to check the OCSP response validity.
5821 *) New subcommands for 'openssl ca':
5822 'openssl ca -status <serial>' prints the status of the cert with
5823 the given serial number (according to the index file).
5824 'openssl ca -updatedb' updates the expiry status of certificates
5826 [Massimiliano Pala <madwolf@comune.modena.it>]
5828 *) New '-newreq-nodes' command option to CA.pl. This is like
5829 '-newreq', but calls 'openssl req' with the '-nodes' option
5830 so that the resulting key is not encrypted.
5831 [Damien Miller <djm@mindrot.org>]
5833 *) New configuration for the GNU Hurd.
5834 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5836 *) Initial code to implement OCSP basic response verify. This
5837 is currently incomplete. Currently just finds the signer's
5838 certificate and verifies the signature on the response.
5841 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5842 value of OPENSSLDIR. This is available via the new '-d' option
5843 to 'openssl version', and is also included in 'openssl version -a'.
5846 *) Allowing defining memory allocation callbacks that will be given
5847 file name and line number information in additional arguments
5848 (a const char* and an int). The basic functionality remains, as
5849 well as the original possibility to just replace malloc(),
5850 realloc() and free() by functions that do not know about these
5851 additional arguments. To register and find out the current
5852 settings for extended allocation functions, the following
5853 functions are provided:
5855 CRYPTO_set_mem_ex_functions
5856 CRYPTO_set_locked_mem_ex_functions
5857 CRYPTO_get_mem_ex_functions
5858 CRYPTO_get_locked_mem_ex_functions
5860 These work the same way as CRYPTO_set_mem_functions and friends.
5861 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5862 extended allocation function is enabled.
5863 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5864 a conventional allocation function is enabled.
5865 [Richard Levitte, Bodo Moeller]
5867 *) Finish off removing the remaining LHASH function pointer casts.
5868 There should no longer be any prototype-casting required when using
5869 the LHASH abstraction, and any casts that remain are "bugs". See
5870 the callback types and macros at the head of lhash.h for details
5871 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5874 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5875 If /dev/[u]random devices are not available or do not return enough
5876 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5878 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5879 /etc/entropy will be queried once each in this sequence, quering stops
5880 when enough entropy was collected without querying more sockets.
5883 *) Change the Unix RAND_poll() variant to be able to poll several
5884 random devices, as specified by DEVRANDOM, until a sufficient amount
5885 of data has been collected. We spend at most 10 ms on each file
5886 (select timeout) and read in non-blocking mode. DEVRANDOM now
5887 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5888 (previously it was just the string "/dev/urandom"), so on typical
5889 platforms the 10 ms delay will never occur.
5890 Also separate out the Unix variant to its own file, rand_unix.c.
5891 For VMS, there's a currently-empty rand_vms.c.
5894 *) Move OCSP client related routines to ocsp_cl.c. These
5895 provide utility functions which an application needing
5896 to issue a request to an OCSP responder and analyse the
5897 response will typically need: as opposed to those which an
5898 OCSP responder itself would need which will be added later.
5900 OCSP_request_sign() signs an OCSP request with an API similar
5901 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5902 response. OCSP_response_get1_basic() extracts basic response
5903 from response. OCSP_resp_find_status(): finds and extracts status
5904 information from an OCSP_CERTID structure (which will be created
5905 when the request structure is built). These are built from lower
5906 level functions which work on OCSP_SINGLERESP structures but
5907 wont normally be used unless the application wishes to examine
5908 extensions in the OCSP response for example.
5910 Replace nonce routines with a pair of functions.
5911 OCSP_request_add1_nonce() adds a nonce value and optionally
5912 generates a random value. OCSP_check_nonce() checks the
5913 validity of the nonce in an OCSP response.
5916 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5917 This doesn't copy the supplied OCSP_CERTID and avoids the
5918 need to free up the newly created id. Change return type
5919 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5920 This can then be used to add extensions to the request.
5921 Deleted OCSP_request_new(), since most of its functionality
5922 is now in OCSP_REQUEST_new() (and the case insensitive name
5923 clash) apart from the ability to set the request name which
5924 will be added elsewhere.
5927 *) Update OCSP API. Remove obsolete extensions argument from
5928 various functions. Extensions are now handled using the new
5929 OCSP extension code. New simple OCSP HTTP function which
5930 can be used to send requests and parse the response.
5933 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5934 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5935 uses the special reorder version of SET OF to sort the attributes
5936 and reorder them to match the encoded order. This resolves a long
5937 standing problem: a verify on a PKCS7 structure just after signing
5938 it used to fail because the attribute order did not match the
5939 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5940 it uses the received order. This is necessary to tolerate some broken
5941 software that does not order SET OF. This is handled by encoding
5942 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5943 to produce the required SET OF.
5946 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5947 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5948 files to get correct declarations of the ASN.1 item variables.
5951 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5952 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5953 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5954 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5955 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5956 ASN1_ITEM and no wrapper functions.
5959 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5960 replace the old function pointer based I/O routines. Change most of
5961 the *_d2i_bio() and *_d2i_fp() functions to use these.
5964 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5965 lines, recognice more "algorithms" that can be deselected, and make
5966 it complain about algorithm deselection that isn't recognised.
5969 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5970 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5971 to use new functions. Add NO_ASN1_OLD which can be set to remove
5972 some old style ASN1 functions: this can be used to determine if old
5973 code will still work when these eventually go away.
5976 *) New extension functions for OCSP structures, these follow the
5977 same conventions as certificates and CRLs.
5980 *) New function X509V3_add1_i2d(). This automatically encodes and
5981 adds an extension. Its behaviour can be customised with various
5982 flags to append, replace or delete. Various wrappers added for
5983 certifcates and CRLs.
5986 *) Fix to avoid calling the underlying ASN1 print routine when
5987 an extension cannot be parsed. Correct a typo in the
5988 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5991 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5992 entries for variables.
5995 *) Add functionality to apps/openssl.c for detecting locking
5996 problems: As the program is single-threaded, all we have
5997 to do is register a locking callback using an array for
5998 storing which locks are currently held by the program.
6001 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6002 SSL_get_ex_data_X509_STORE_idx(), which is used in
6003 ssl_verify_cert_chain() and thus can be called at any time
6004 during TLS/SSL handshakes so that thread-safety is essential.
6005 Unfortunately, the ex_data design is not at all suited
6006 for multi-threaded use, so it probably should be abolished.
6009 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6010 [Broadcom, tweaked and integrated by Geoff Thorpe]
6012 *) Move common extension printing code to new function
6013 X509V3_print_extensions(). Reorganise OCSP print routines and
6014 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6017 *) New function X509_signature_print() to remove duplication in some
6021 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6022 set (this was treated exactly the same as SET OF previously). This
6023 is used to reorder the STACK representing the structure to match the
6024 encoding. This will be used to get round a problem where a PKCS7
6025 structure which was signed could not be verified because the STACK
6026 order did not reflect the encoded order.
6029 *) Reimplement the OCSP ASN1 module using the new code.
6032 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6033 for its ASN1 operations. The old style function pointers still exist
6034 for now but they will eventually go away.
6037 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6038 completely replaces the old ASN1 functionality with a table driven
6039 encoder and decoder which interprets an ASN1_ITEM structure describing
6040 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6041 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6042 has also been converted to the new form.
6045 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6046 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6047 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6048 for negative moduli.
6051 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6052 of not touching the result's sign bit.
6055 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6059 *) Changed the LHASH code to use prototypes for callbacks, and created
6060 macros to declare and implement thin (optionally static) functions
6061 that provide type-safety and avoid function pointer casting for the
6062 type-specific callbacks.
6065 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6067 [Veers Staats <staatsvr@asc.hpc.mil>,
6068 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6070 *) Reformat the FAQ so the different questions and answers can be divided
6071 in sections depending on the subject.
6074 *) Have the zlib compression code load ZLIB.DLL dynamically under
6078 *) New function BN_mod_sqrt for computing square roots modulo a prime
6079 (using the probabilistic Tonelli-Shanks algorithm unless
6080 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6081 be handled deterministically).
6082 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6084 *) Make BN_mod_inverse faster by explicitly handling small quotients
6085 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6086 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6089 *) New function BN_kronecker.
6092 *) Fix BN_gcd so that it works on negative inputs; the result is
6093 positive unless both parameters are zero.
6094 Previously something reasonably close to an infinite loop was
6095 possible because numbers could be growing instead of shrinking
6096 in the implementation of Euclid's algorithm.
6099 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6100 sign of the number in question.
6102 Fix BN_is_word(a,w) to work correctly for w == 0.
6104 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
6105 because its test if the absolute value of 'a' equals 'w'.
6106 Note that BN_abs_is_word does *not* handle w == 0 reliably;
6107 it exists mostly for use in the implementations of BN_is_zero(),
6108 BN_is_one(), and BN_is_word().
6111 *) New function BN_swap.
6114 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
6115 the exponentiation functions are more likely to produce reasonable
6116 results on negative inputs.
6119 *) Change BN_mod_mul so that the result is always non-negative.
6120 Previously, it could be negative if one of the factors was negative;
6121 I don't think anyone really wanted that behaviour.
6124 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
6125 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
6126 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
6127 and add new functions:
6136 BN_mod_lshift1_quick
6140 These functions always generate non-negative results.
6142 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
6143 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
6145 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
6146 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
6147 be reduced modulo m.
6148 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6151 The following entry accidentily appeared in the CHANGES file
6152 distributed with OpenSSL 0.9.7. The modifications described in
6153 it do *not* apply to OpenSSL 0.9.7.
6155 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
6156 was actually never needed) and in BN_mul(). The removal in BN_mul()
6157 required a small change in bn_mul_part_recursive() and the addition
6158 of the functions bn_cmp_part_words(), bn_sub_part_words() and
6159 bn_add_part_words(), which do the same thing as bn_cmp_words(),
6160 bn_sub_words() and bn_add_words() except they take arrays with
6165 *) In 'openssl passwd', verify passwords read from the terminal
6166 unless the '-salt' option is used (which usually means that
6167 verification would just waste user's time since the resulting
6168 hash is going to be compared with some given password hash)
6169 or the new '-noverify' option is used.
6171 This is an incompatible change, but it does not affect
6172 non-interactive use of 'openssl passwd' (passwords on the command
6173 line, '-stdin' option, '-in ...' option) and thus should not
6177 *) Remove all references to RSAref, since there's no more need for it.
6180 *) Make DSO load along a path given through an environment variable
6181 (SHLIB_PATH) with shl_load().
6184 *) Constify the ENGINE code as a result of BIGNUM constification.
6185 Also constify the RSA code and most things related to it. In a
6186 few places, most notable in the depth of the ASN.1 code, ugly
6187 casts back to non-const were required (to be solved at a later
6191 *) Make it so the openssl application has all engines loaded by default.
6194 *) Constify the BIGNUM routines a little more.
6197 *) Add the following functions:
6199 ENGINE_load_cswift()
6201 ENGINE_load_atalla()
6203 ENGINE_load_builtin_engines()
6205 That way, an application can itself choose if external engines that
6206 are built-in in OpenSSL shall ever be used or not. The benefit is
6207 that applications won't have to be linked with libdl or other dso
6208 libraries unless it's really needed.
6210 Changed 'openssl engine' to load all engines on demand.
6211 Changed the engine header files to avoid the duplication of some
6212 declarations (they differed!).
6215 *) 'openssl engine' can now list capabilities.
6218 *) Better error reporting in 'openssl engine'.
6221 *) Never call load_dh_param(NULL) in s_server.
6224 *) Add engine application. It can currently list engines by name and
6225 identity, and test if they are actually available.
6228 *) Improve RPM specification file by forcing symbolic linking and making
6229 sure the installed documentation is also owned by root.root.
6230 [Damien Miller <djm@mindrot.org>]
6232 *) Give the OpenSSL applications more possibilities to make use of
6233 keys (public as well as private) handled by engines.
6236 *) Add OCSP code that comes from CertCo.
6239 *) Add VMS support for the Rijndael code.
6242 *) Added untested support for Nuron crypto accelerator.
6245 *) Add support for external cryptographic devices. This code was
6246 previously distributed separately as the "engine" branch.
6247 [Geoff Thorpe, Richard Levitte]
6249 *) Rework the filename-translation in the DSO code. It is now possible to
6250 have far greater control over how a "name" is turned into a filename
6251 depending on the operating environment and any oddities about the
6252 different shared library filenames on each system.
6255 *) Support threads on FreeBSD-elf in Configure.
6258 *) Fix for SHA1 assembly problem with MASM: it produces
6259 warnings about corrupt line number information when assembling
6260 with debugging information. This is caused by the overlapping
6262 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
6265 NCONF_get_number() has no error checking at all. As a replacement,
6266 NCONF_get_number_e() is defined (_e for "error checking") and is
6267 promoted strongly. The old NCONF_get_number is kept around for
6268 binary backward compatibility.
6269 Make it possible for methods to load from something other than a BIO,
6270 by providing a function pointer that is given a name instead of a BIO.
6271 For example, this could be used to load configuration data from an
6275 *) Fix for non blocking accept BIOs. Added new I/O special reason
6276 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
6277 with non blocking I/O was not possible because no retry code was
6278 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
6282 *) Added the beginnings of Rijndael support.
6285 *) Fix for bug in DirectoryString mask setting. Add support for
6286 X509_NAME_print_ex() in 'req' and X509_print_ex() function
6287 to allow certificate printing to more controllable, additional
6288 'certopt' option to 'x509' to allow new printing options to be
6292 *) Clean old EAY MD5 hack from e_os.h.
6295 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6297 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6298 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6299 [Joe Orton, Steve Henson]
6301 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6303 *) Fix additional bug revealed by the NISCC test suite:
6305 Stop bug triggering large recursion when presented with
6306 certain ASN.1 tags (CVE-2003-0851)
6309 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6311 *) Fix various bugs revealed by running the NISCC test suite:
6313 Stop out of bounds reads in the ASN1 code when presented with
6314 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6316 If verify callback ignores invalid public key errors don't try to check
6317 certificate signature with the NULL public key.
6321 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6322 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6326 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6327 extra data after the compression methods not only for TLS 1.0
6328 but also for SSL 3.0 (as required by the specification).
6329 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6331 *) Change X509_certificate_type() to mark the key as exported/exportable
6332 when it's 512 *bits* long, not 512 bytes.
6335 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6337 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6338 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6339 a protocol version number mismatch like a decryption error
6340 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6343 *) Turn on RSA blinding by default in the default implementation
6344 to avoid a timing attack. Applications that don't want it can call
6345 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6346 They would be ill-advised to do so in most cases.
6347 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6349 *) Change RSA blinding code so that it works when the PRNG is not
6350 seeded (in this case, the secret RSA exponent is abused as
6351 an unpredictable seed -- if it is not unpredictable, there
6352 is no point in blinding anyway). Make RSA blinding thread-safe
6353 by remembering the creator's thread ID in rsa->blinding and
6354 having all other threads use local one-time blinding factors
6355 (this requires more computation than sharing rsa->blinding, but
6356 avoids excessive locking; and if an RSA object is not shared
6357 between threads, blinding will still be very fast).
6360 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6362 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6363 via timing by performing a MAC computation even if incorrrect
6364 block cipher padding has been found. This is a countermeasure
6365 against active attacks where the attacker has to distinguish
6366 between bad padding and a MAC verification error. (CVE-2003-0078)
6368 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6369 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6370 Martin Vuagnoux (EPFL, Ilion)]
6372 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6374 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6375 memory from it's contents. This is done with a counter that will
6376 place alternating values in each byte. This can be used to solve
6377 two issues: 1) the removal of calls to memset() by highly optimizing
6378 compilers, and 2) cleansing with other values than 0, since those can
6379 be read through on certain media, for example a swap space on disk.
6382 *) Bugfix: client side session caching did not work with external caching,
6383 because the session->cipher setting was not restored when reloading
6384 from the external cache. This problem was masked, when
6385 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6386 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6389 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6390 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6391 [Zeev Lieber <zeev-l@yahoo.com>]
6393 *) Undo an undocumented change introduced in 0.9.6e which caused
6394 repeated calls to OpenSSL_add_all_ciphers() and
6395 OpenSSL_add_all_digests() to be ignored, even after calling
6399 *) Change the default configuration reader to deal with last line not
6400 being properly terminated.
6403 *) Change X509_NAME_cmp() so it applies the special rules on handling
6404 DN values that are of type PrintableString, as well as RDNs of type
6405 emailAddress where the value has the type ia5String.
6406 [stefank@valicert.com via Richard Levitte]
6408 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6409 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6410 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6411 the bitwise-OR of the two for use by the majority of applications
6412 wanting this behaviour, and update the docs. The documented
6413 behaviour and actual behaviour were inconsistent and had been
6414 changing anyway, so this is more a bug-fix than a behavioural
6416 [Geoff Thorpe, diagnosed by Nadav Har'El]
6418 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6419 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6422 *) Fix initialization code race conditions in
6423 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6424 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6425 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6426 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6427 ssl2_get_cipher_by_char(),
6428 ssl3_get_cipher_by_char().
6429 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6431 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6432 the cached sessions are flushed, as the remove_cb() might use ex_data
6433 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6434 (see [openssl.org #212]).
6435 [Geoff Thorpe, Lutz Jaenicke]
6437 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6438 length, instead of the encoding length to d2i_ASN1_OBJECT.
6441 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6443 *) [In 0.9.6g-engine release:]
6444 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6445 [Lynn Gazis <lgazis@rainbow.com>]
6447 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6449 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6450 and get fix the header length calculation.
6451 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6452 Alon Kantor <alonk@checkpoint.com> (and others),
6455 *) Use proper error handling instead of 'assertions' in buffer
6456 overflow checks added in 0.9.6e. This prevents DoS (the
6457 assertions could call abort()).
6458 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6460 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6462 *) Add various sanity checks to asn1_get_length() to reject
6463 the ASN1 length bytes if they exceed sizeof(long), will appear
6464 negative or the content length exceeds the length of the
6466 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6468 *) Fix cipher selection routines: ciphers without encryption had no flags
6469 for the cipher strength set and where therefore not handled correctly
6470 by the selection routines (PR #130).
6473 *) Fix EVP_dsa_sha macro.
6477 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6478 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6479 that was added in OpenSSL 0.9.6d.
6481 As the countermeasure turned out to be incompatible with some
6482 broken SSL implementations, the new option is part of SSL_OP_ALL.
6483 SSL_OP_ALL is usually employed when compatibility with weird SSL
6484 implementations is desired (e.g. '-bugs' option to 's_client' and
6485 's_server'), so the new option is automatically set in many
6489 *) Changes in security patch:
6491 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6492 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6493 Air Force Materiel Command, USAF, under agreement number
6496 *) Add various sanity checks to asn1_get_length() to reject
6497 the ASN1 length bytes if they exceed sizeof(long), will appear
6498 negative or the content length exceeds the length of the
6499 supplied buffer. (CVE-2002-0659)
6500 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6502 *) Assertions for various potential buffer overflows, not known to
6504 [Ben Laurie (CHATS)]
6506 *) Various temporary buffers to hold ASCII versions of integers were
6507 too small for 64 bit platforms. (CVE-2002-0655)
6508 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6510 *) Remote buffer overflow in SSL3 protocol - an attacker could
6511 supply an oversized session ID to a client. (CVE-2002-0656)
6512 [Ben Laurie (CHATS)]
6514 *) Remote buffer overflow in SSL2 protocol - an attacker could
6515 supply an oversized client master key. (CVE-2002-0656)
6516 [Ben Laurie (CHATS)]
6518 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6520 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6521 encoded as NULL) with id-dsa-with-sha1.
6522 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6524 *) Check various X509_...() return values in apps/req.c.
6525 [Nils Larsch <nla@trustcenter.de>]
6527 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6528 an end-of-file condition would erronously be flagged, when the CRLF
6529 was just at the end of a processed block. The bug was discovered when
6530 processing data through a buffering memory BIO handing the data to a
6531 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6532 <ptsekov@syntrex.com> and Nedelcho Stanev.
6535 *) Implement a countermeasure against a vulnerability recently found
6536 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6537 before application data chunks to avoid the use of known IVs
6538 with data potentially chosen by the attacker.
6541 *) Fix length checks in ssl3_get_client_hello().
6544 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6545 to prevent ssl3_read_internal() from incorrectly assuming that
6546 ssl3_read_bytes() found application data while handshake
6547 processing was enabled when in fact s->s3->in_read_app_data was
6548 merely automatically cleared during the initial handshake.
6549 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6551 *) Fix object definitions for Private and Enterprise: they were not
6552 recognized in their shortname (=lowercase) representation. Extend
6553 obj_dat.pl to issue an error when using undefined keywords instead
6554 of silently ignoring the problem (Svenning Sorensen
6555 <sss@sss.dnsalias.net>).
6558 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6559 generators, i.e. generators other than 2 and 5. (Previously, the
6560 code did not properly initialise the 'add' and 'rem' values to
6561 BN_generate_prime().)
6563 In the new general case, we do not insist that 'generator' is
6564 actually a primitive root: This requirement is rather pointless;
6565 a generator of the order-q subgroup is just as good, if not
6569 *) Map new X509 verification errors to alerts. Discovered and submitted by
6570 Tom Wu <tom@arcot.com>.
6573 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6574 returning non-zero before the data has been completely received
6575 when using non-blocking I/O.
6576 [Bodo Moeller; problem pointed out by John Hughes]
6578 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6579 [Ben Laurie, Lutz Jaenicke]
6581 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6582 Yoram Zahavi <YoramZ@gilian.com>).
6585 *) Add information about CygWin 1.3 and on, and preserve proper
6586 configuration for the versions before that.
6587 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6589 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6590 check whether we deal with a copy of a session and do not delete from
6591 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6592 <izhar@checkpoint.com>.
6595 *) Do not store session data into the internal session cache, if it
6596 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6597 flag is set). Proposed by Aslam <aslam@funk.com>.
6600 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6604 *) [In 0.9.6d-engine release:]
6605 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6606 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6608 *) Add the configuration target linux-s390x.
6609 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6611 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6612 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6613 variable as an indication that a ClientHello message has been
6614 received. As the flag value will be lost between multiple
6615 invocations of ssl3_accept when using non-blocking I/O, the
6616 function may not be aware that a handshake has actually taken
6617 place, thus preventing a new session from being added to the
6620 To avoid this problem, we now set s->new_session to 2 instead of
6621 using a local variable.
6622 [Lutz Jaenicke, Bodo Moeller]
6624 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6625 if the SSL_R_LENGTH_MISMATCH error is detected.
6626 [Geoff Thorpe, Bodo Moeller]
6628 *) New 'shared_ldflag' column in Configure platform table.
6631 *) Fix EVP_CIPHER_mode macro.
6632 ["Dan S. Camper" <dan@bti.net>]
6634 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6635 type, we must throw them away by setting rr->length to 0.
6636 [D P Chang <dpc@qualys.com>]
6638 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6640 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6641 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6642 worked incorrectly for those cases where range = 10..._2 and
6643 3*range is two bits longer than range.)
6646 *) Only add signing time to PKCS7 structures if it is not already
6650 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6651 OBJ_ld_ce should be OBJ_id_ce.
6652 Also some ip-pda OIDs in crypto/objects/objects.txt were
6653 incorrect (cf. RFC 3039).
6654 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6656 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6657 returns early because it has nothing to do.
6658 [Andy Schneider <andy.schneider@bjss.co.uk>]
6660 *) [In 0.9.6c-engine release:]
6661 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6662 [Andy Schneider <andy.schneider@bjss.co.uk>]
6664 *) [In 0.9.6c-engine release:]
6665 Add support for Cryptographic Appliance's keyserver technology.
6666 (Use engine 'keyclient')
6667 [Cryptographic Appliances and Geoff Thorpe]
6669 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6670 is called via tools/c89.sh because arguments have to be
6671 rearranged (all '-L' options must appear before the first object
6673 [Richard Shapiro <rshapiro@abinitio.com>]
6675 *) [In 0.9.6c-engine release:]
6676 Add support for Broadcom crypto accelerator cards, backported
6678 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6680 *) [In 0.9.6c-engine release:]
6681 Add support for SureWare crypto accelerator cards from
6682 Baltimore Technologies. (Use engine 'sureware')
6683 [Baltimore Technologies and Mark Cox]
6685 *) [In 0.9.6c-engine release:]
6686 Add support for crypto accelerator cards from Accelerated
6687 Encryption Processing, www.aep.ie. (Use engine 'aep')
6688 [AEP Inc. and Mark Cox]
6690 *) Add a configuration entry for gcc on UnixWare.
6691 [Gary Benson <gbenson@redhat.com>]
6693 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6694 messages are stored in a single piece (fixed-length part and
6695 variable-length part combined) and fix various bugs found on the way.
6698 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6699 instead. BIO_gethostbyname() does not know what timeouts are
6700 appropriate, so entries would stay in cache even when they have
6702 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6704 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6705 faced with a pathologically small ClientHello fragment that does
6706 not contain client_version: Instead of aborting with an error,
6707 simply choose the highest available protocol version (i.e.,
6708 TLS 1.0 unless it is disabled). In practice, ClientHello
6709 messages are never sent like this, but this change gives us
6710 strictly correct behaviour at least for TLS.
6713 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6714 never resets s->method to s->ctx->method when called from within
6715 one of the SSL handshake functions.
6716 [Bodo Moeller; problem pointed out by Niko Baric]
6718 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6719 (sent using the client's version number) if client_version is
6720 smaller than the protocol version in use. Also change
6721 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6722 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6723 the client will at least see that alert.
6726 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6730 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6731 client receives HelloRequest while in a handshake.
6732 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6734 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6735 should end in 'break', not 'goto end' which circuments various
6736 cleanups done in state SSL_ST_OK. But session related stuff
6737 must be disabled for SSL_ST_OK in the case that we just sent a
6740 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6741 before just sending a HelloRequest.
6742 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6744 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6745 reveal whether illegal block cipher padding was found or a MAC
6746 verification error occured. (Neither SSLerr() codes nor alerts
6747 are directly visible to potential attackers, but the information
6748 may leak via logfiles.)
6750 Similar changes are not required for the SSL 2.0 implementation
6751 because the number of padding bytes is sent in clear for SSL 2.0,
6752 and the extra bytes are just ignored. However ssl/s2_pkt.c
6753 failed to verify that the purported number of padding bytes is in
6757 *) Add OpenUNIX-8 support including shared libraries
6758 (Boyd Lynn Gerber <gerberb@zenez.com>).
6761 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6762 'wristwatch attack' using huge encoding parameters (cf.
6763 James H. Manger's CRYPTO 2001 paper). Note that the
6764 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6765 encoding parameters and hence was not vulnerable.
6768 *) BN_sqr() bug fix.
6769 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6771 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6772 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6773 followed by modular reduction.
6774 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6776 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6777 equivalent based on BN_pseudo_rand() instead of BN_rand().
6780 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6781 This function was broken, as the check for a new client hello message
6782 to handle SGC did not allow these large messages.
6783 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6786 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6789 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6790 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6793 *) Rework the configuration and shared library support for Tru64 Unix.
6794 The configuration part makes use of modern compiler features and
6795 still retains old compiler behavior for those that run older versions
6796 of the OS. The shared library support part includes a variant that
6797 uses the RPATH feature, and is available through the special
6798 configuration target "alpha-cc-rpath", which will never be selected
6800 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6802 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6803 with the same message size as in ssl3_get_certificate_request().
6804 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6805 messages might inadvertently be reject as too long.
6806 [Petr Lampa <lampa@fee.vutbr.cz>]
6808 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6811 *) Modified SSL library such that the verify_callback that has been set
6812 specificly for an SSL object with SSL_set_verify() is actually being
6813 used. Before the change, a verify_callback set with this function was
6814 ignored and the verify_callback() set in the SSL_CTX at the time of
6815 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6816 to allow the necessary settings.
6819 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6820 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6821 done automatically (in contradiction to the requirements of the C
6822 standard). This made problems when used from OpenSSH.
6825 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6826 dh->length and always used
6828 BN_rand_range(priv_key, dh->p).
6830 BN_rand_range() is not necessary for Diffie-Hellman, and this
6831 specific range makes Diffie-Hellman unnecessarily inefficient if
6832 dh->length (recommended exponent length) is much smaller than the
6833 length of dh->p. We could use BN_rand_range() if the order of
6834 the subgroup was stored in the DH structure, but we only have
6839 BN_rand(priv_key, l, ...)
6841 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6847 RSA_eay_public_encrypt
6848 RSA_eay_private_decrypt
6849 RSA_eay_private_encrypt (signing)
6850 RSA_eay_public_decrypt (signature verification)
6852 (default implementations for RSA_public_encrypt,
6853 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6854 always reject numbers >= n.
6857 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6858 to synchronize access to 'locking_thread'. This is necessary on
6859 systems where access to 'locking_thread' (an 'unsigned long'
6860 variable) is not atomic.
6863 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6864 *before* setting the 'crypto_lock_rand' flag. The previous code had
6865 a race condition if 0 is a valid thread ID.
6866 [Travis Vitek <vitek@roguewave.com>]
6868 *) Add support for shared libraries under Irix.
6869 [Albert Chin-A-Young <china@thewrittenword.com>]
6871 *) Add configuration option to build on Linux on both big-endian and
6873 [Ralf Baechle <ralf@uni-koblenz.de>]
6875 *) Add the possibility to create shared libraries on HP-UX.
6878 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6880 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6881 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6882 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6883 PRNG state recovery was possible based on the output of
6884 one PRNG request appropriately sized to gain knowledge on
6885 'md' followed by enough consecutive 1-byte PRNG requests
6886 to traverse all of 'state'.
6888 1. When updating 'md_local' (the current thread's copy of 'md')
6889 during PRNG output generation, hash all of the previous
6890 'md_local' value, not just the half used for PRNG output.
6892 2. Make the number of bytes from 'state' included into the hash
6893 independent from the number of PRNG bytes requested.
6895 The first measure alone would be sufficient to avoid
6896 Markku-Juhani's attack. (Actually it had never occurred
6897 to me that the half of 'md_local' used for chaining was the
6898 half from which PRNG output bytes were taken -- I had always
6899 assumed that the secret half would be used.) The second
6900 measure makes sure that additional data from 'state' is never
6901 mixed into 'md_local' in small portions; this heuristically
6902 further strengthens the PRNG.
6905 *) Fix crypto/bn/asm/mips3.s.
6908 *) When only the key is given to "enc", the IV is undefined. Print out
6909 an error message in this case.
6912 *) Handle special case when X509_NAME is empty in X509 printing routines.
6915 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6916 positive and less than q.
6919 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6920 used: it isn't thread safe and the add_lock_callback should handle
6922 [Paul Rose <Paul.Rose@bridge.com>]
6924 *) Verify that incoming data obeys the block size in
6925 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6929 [Ulf Möller, Bodo Möller]
6931 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6932 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6933 when fixing the server behaviour for backwards-compatible 'client
6934 hello' messages. (Note that the attack is impractical against
6935 SSL 3.0 and TLS 1.0 anyway because length and version checking
6936 means that the probability of guessing a valid ciphertext is
6937 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6940 Before 0.9.5, the countermeasure (hide the error by generating a
6941 random 'decryption result') did not work properly because
6942 ERR_clear_error() was missing, meaning that SSL_get_error() would
6943 detect the supposedly ignored error.
6945 Both problems are now fixed.
6948 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6949 (previously it was 1024).
6952 *) Fix for compatibility mode trust settings: ignore trust settings
6953 unless some valid trust or reject settings are present.
6956 *) Fix for blowfish EVP: its a variable length cipher.
6959 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6960 parameters in DSA public key structures and return an error in the
6961 DSA routines if parameters are absent.
6964 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6965 in the current directory if neither $RANDFILE nor $HOME was set.
6966 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6967 caused some confusion to Windows users who haven't defined $HOME.
6968 Thus RAND_file_name() is changed again: e_os.h can define a
6969 DEFAULT_HOME, which will be used if $HOME is not set.
6970 For Windows, we use "C:"; on other platforms, we still require
6971 environment variables.
6973 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6974 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6975 having multiple threads call RAND_poll() concurrently.
6978 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6979 combination of a flag and a thread ID variable.
6980 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6981 flag), *other* threads can enter ssleay_add_bytes without obeying
6982 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6983 that they do not hold after the first thread unsets add_do_not_lock).
6986 *) Change bctest again: '-x' expressions are not available in all
6990 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6992 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6993 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6995 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6996 the default extension for executables, if any. Also, make the perl
6997 scripts that use symlink() to test if it really exists and use "cp"
6998 if it doesn't. All this made OpenSSL compilable and installable in
7002 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7003 If SEQUENCE is length is indefinite just set c->slen to the total
7004 amount of data available.
7005 [Steve Henson, reported by shige@FreeBSD.org]
7006 [This change does not apply to 0.9.7.]
7008 *) Change bctest to avoid here-documents inside command substitution
7009 (workaround for FreeBSD /bin/sh bug).
7010 For compatibility with Ultrix, avoid shell functions (introduced
7011 in the bctest version that searches along $PATH).
7014 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7015 with des_encrypt() defined on some operating systems, like Solaris
7019 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7020 On the Importance of Eliminating Errors in Cryptographic
7021 Computations, J. Cryptology 14 (2001) 2, 101-119,
7022 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7025 *) MIPS assembler BIGNUM division bug fix.
7028 *) Disabled incorrect Alpha assembler code.
7031 *) Fix PKCS#7 decode routines so they correctly update the length
7032 after reading an EOC for the EXPLICIT tag.
7034 [This change does not apply to 0.9.7.]
7036 *) Fix bug in PKCS#12 key generation routines. This was triggered
7037 if a 3DES key was generated with a 0 initial byte. Include
7038 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7039 (but broken) behaviour.
7042 *) Enhance bctest to search for a working bc along $PATH and print
7044 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7046 *) Fix memory leaks in err.c: free err_data string if necessary;
7047 don't write to the wrong index in ERR_set_error_data.
7050 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7054 *) Replace rdtsc with _emit statements for VC++ version 5.
7055 [Jeremy Cooper <jeremy@baymoo.org>]
7057 *) Make it possible to reuse SSLv2 sessions.
7060 *) In copy_email() check for >= 0 as a return value for
7061 X509_NAME_get_index_by_NID() since 0 is a valid index.
7062 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7064 *) Avoid coredump with unsupported or invalid public keys by checking if
7065 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7066 PKCS7_verify() fails with non detached data.
7069 *) Don't use getenv in library functions when run as setuid/setgid.
7070 New function OPENSSL_issetugid().
7073 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7074 due to incorrect handling of multi-threading:
7076 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7078 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7080 3. Count how many times MemCheck_off() has been called so that
7081 nested use can be treated correctly. This also avoids
7082 inband-signalling in the previous code (which relied on the
7083 assumption that thread ID 0 is impossible).
7086 *) Add "-rand" option also to s_client and s_server.
7089 *) Fix CPU detection on Irix 6.x.
7090 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7091 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7093 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7096 [This change does not apply to 0.9.7.]
7098 *) Use the cached encoding of an X509_NAME structure rather than
7099 copying it. This is apparently the reason for the libsafe "errors"
7100 but the code is actually correct.
7103 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
7104 Bleichenbacher's DSA attack.
7105 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
7106 to be set and top=0 forces the highest bit to be set; top=-1 is new
7107 and leaves the highest bit random.
7108 [Ulf Moeller, Bodo Moeller]
7110 *) In the NCONF_...-based implementations for CONF_... queries
7111 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
7112 a temporary CONF structure with the data component set to NULL
7113 (which gives segmentation faults in lh_retrieve).
7114 Instead, use NULL for the CONF pointer in CONF_get_string and
7115 CONF_get_number (which may use environment variables) and directly
7116 return NULL from CONF_get_section.
7119 *) Fix potential buffer overrun for EBCDIC.
7122 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
7123 keyUsage if basicConstraints absent for a CA.
7126 *) Make SMIME_write_PKCS7() write mail header values with a format that
7127 is more generally accepted (no spaces before the semicolon), since
7128 some programs can't parse those values properly otherwise. Also make
7129 sure BIO's that break lines after each write do not create invalid
7133 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
7134 macros previously used would not encode an empty SEQUENCE OF
7135 and break the signature.
7137 [This change does not apply to 0.9.7.]
7139 *) Zero the premaster secret after deriving the master secret in
7143 *) Add some EVP_add_digest_alias registrations (as found in
7144 OpenSSL_add_all_digests()) to SSL_library_init()
7145 aka OpenSSL_add_ssl_algorithms(). This provides improved
7146 compatibility with peers using X.509 certificates
7147 with unconventional AlgorithmIdentifier OIDs.
7150 *) Fix for Irix with NO_ASM.
7151 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7153 *) ./config script fixes.
7154 [Ulf Moeller, Richard Levitte]
7156 *) Fix 'openssl passwd -1'.
7159 *) Change PKCS12_key_gen_asc() so it can cope with non null
7160 terminated strings whose length is passed in the passlen
7161 parameter, for example from PEM callbacks. This was done
7162 by adding an extra length parameter to asc2uni().
7163 [Steve Henson, reported by <oddissey@samsung.co.kr>]
7165 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
7166 call failed, free the DSA structure.
7169 *) Fix to uni2asc() to cope with zero length Unicode strings.
7170 These are present in some PKCS#12 files.
7173 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
7174 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
7175 when writing a 32767 byte record.
7176 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
7178 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
7179 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
7181 (RSA objects have a reference count access to which is protected
7182 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
7183 so they are meant to be shared between threads.)
7184 [Bodo Moeller, Geoff Thorpe; original patch submitted by
7185 "Reddie, Steven" <Steven.Reddie@ca.com>]
7187 *) Fix a deadlock in CRYPTO_mem_leaks().
7190 *) Use better test patterns in bntest.
7193 *) rand_win.c fix for Borland C.
7196 *) BN_rshift bugfix for n == 0.
7199 *) Add a 'bctest' script that checks for some known 'bc' bugs
7200 so that 'make test' does not abort just because 'bc' is broken.
7203 *) Store verify_result within SSL_SESSION also for client side to
7204 avoid potential security hole. (Re-used sessions on the client side
7205 always resulted in verify_result==X509_V_OK, not using the original
7206 result of the server certificate verification.)
7209 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
7210 SSL3_RT_APPLICATION_DATA, return 0.
7211 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
7215 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
7216 releases, have been re-implemented by renaming the previous
7217 implementations of ssl2_read and ssl3_read to ssl2_read_internal
7218 and ssl3_read_internal, respectively, and adding 'peek' parameters
7219 to them. The new ssl[23]_{read,peek} functions are calls to
7220 ssl[23]_read_internal with the 'peek' flag set appropriately.
7221 A 'peek' parameter has also been added to ssl3_read_bytes, which
7222 does the actual work for ssl3_read_internal.
7225 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
7226 the method-specific "init()" handler. Also clean up ex_data after
7227 calling the method-specific "finish()" handler. Previously, this was
7228 happening the other way round.
7231 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
7232 The previous value, 12, was not always sufficient for BN_mod_exp().
7235 *) Make sure that shared libraries get the internal name engine with
7236 the full version number and not just 0. This should mark the
7237 shared libraries as not backward compatible. Of course, this should
7238 be changed again when we can guarantee backward binary compatibility.
7241 *) Fix typo in get_cert_by_subject() in by_dir.c
7242 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
7244 *) Rework the system to generate shared libraries:
7246 - Make note of the expected extension for the shared libraries and
7247 if there is a need for symbolic links from for example libcrypto.so.0
7248 to libcrypto.so.0.9.7. There is extended info in Configure for
7251 - Make as few rebuilds of the shared libraries as possible.
7253 - Still avoid linking the OpenSSL programs with the shared libraries.
7255 - When installing, install the shared libraries separately from the
7259 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
7261 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
7262 and not in SSL_clear because the latter is also used by the
7263 accept/connect functions; previously, the settings made by
7264 SSL_set_read_ahead would be lost during the handshake.
7265 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
7267 *) Correct util/mkdef.pl to be selective about disabled algorithms.
7268 Previously, it would create entries for disableed algorithms no
7272 *) Added several new manual pages for SSL_* function.
7275 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
7277 *) In ssl23_get_client_hello, generate an error message when faced
7278 with an initial SSL 3.0/TLS record that is too small to contain the
7279 first two bytes of the ClientHello message, i.e. client_version.
7280 (Note that this is a pathologic case that probably has never happened
7281 in real life.) The previous approach was to use the version number
7282 from the record header as a substitute; but our protocol choice
7283 should not depend on that one because it is not authenticated
7284 by the Finished messages.
7287 *) More robust randomness gathering functions for Windows.
7288 [Jeffrey Altman <jaltman@columbia.edu>]
7290 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7291 not set then we don't setup the error code for issuer check errors
7292 to avoid possibly overwriting other errors which the callback does
7293 handle. If an application does set the flag then we assume it knows
7294 what it is doing and can handle the new informational codes
7298 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7299 a general "ANY" type, as such it should be able to decode anything
7300 including tagged types. However it didn't check the class so it would
7301 wrongly interpret tagged types in the same way as their universal
7302 counterpart and unknown types were just rejected. Changed so that the
7303 tagged and unknown types are handled in the same way as a SEQUENCE:
7304 that is the encoding is stored intact. There is also a new type
7305 "V_ASN1_OTHER" which is used when the class is not universal, in this
7306 case we have no idea what the actual type is so we just lump them all
7310 *) On VMS, stdout may very well lead to a file that is written to
7311 in a record-oriented fashion. That means that every write() will
7312 write a separate record, which will be read separately by the
7313 programs trying to read from it. This can be very confusing.
7315 The solution is to put a BIO filter in the way that will buffer
7316 text until a linefeed is reached, and then write everything a
7317 line at a time, so every record written will be an actual line,
7318 not chunks of lines and not (usually doesn't happen, but I've
7319 seen it once) several lines in one record. BIO_f_linebuffer() is
7322 Currently, it's a VMS-only method, because that's where it has
7323 been tested well enough.
7326 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7327 it can return incorrect results.
7328 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7329 but it was in 0.9.6-beta[12].)
7332 *) Disable the check for content being present when verifying detached
7333 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7334 include zero length content when signing messages.
7337 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7338 BIO_ctrl (for BIO pairs).
7341 *) Add DSO method for VMS.
7344 *) Bug fix: Montgomery multiplication could produce results with the
7348 *) Add RPM specification openssl.spec and modify it to build three
7349 packages. The default package contains applications, application
7350 documentation and run-time libraries. The devel package contains
7351 include files, static libraries and function documentation. The
7352 doc package contains the contents of the doc directory. The original
7353 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7356 *) Add a large number of documentation files for many SSL routines.
7357 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7359 *) Add a configuration entry for Sony News 4.
7360 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7362 *) Don't set the two most significant bits to one when generating a
7363 random number < q in the DSA library.
7366 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7367 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7368 the underlying transport is blocking) if a handshake took place.
7369 (The default behaviour is needed by applications such as s_client
7370 and s_server that use select() to determine when to use SSL_read;
7371 but for applications that know in advance when to expect data, it
7372 just makes things more complicated.)
7375 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7379 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7380 work better on such systems.
7381 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7383 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7384 Update PKCS12_parse() so it copies the friendlyName and the
7385 keyid to the certificates aux info.
7388 *) Fix bug in PKCS7_verify() which caused an infinite loop
7389 if there was more than one signature.
7390 [Sven Uszpelkat <su@celocom.de>]
7392 *) Major change in util/mkdef.pl to include extra information
7393 about each symbol, as well as presentig variables as well
7394 as functions. This change means that there's n more need
7395 to rebuild the .num files when some algorithms are excluded.
7398 *) Allow the verify time to be set by an application,
7399 rather than always using the current time.
7402 *) Phase 2 verify code reorganisation. The certificate
7403 verify code now looks up an issuer certificate by a
7404 number of criteria: subject name, authority key id
7405 and key usage. It also verifies self signed certificates
7406 by the same criteria. The main comparison function is
7407 X509_check_issued() which performs these checks.
7409 Lot of changes were necessary in order to support this
7410 without completely rewriting the lookup code.
7412 Authority and subject key identifier are now cached.
7414 The LHASH 'certs' is X509_STORE has now been replaced
7415 by a STACK_OF(X509_OBJECT). This is mainly because an
7416 LHASH can't store or retrieve multiple objects with
7417 the same hash value.
7419 As a result various functions (which were all internal
7420 use only) have changed to handle the new X509_STORE
7421 structure. This will break anything that messed round
7422 with X509_STORE internally.
7424 The functions X509_STORE_add_cert() now checks for an
7425 exact match, rather than just subject name.
7427 The X509_STORE API doesn't directly support the retrieval
7428 of multiple certificates matching a given criteria, however
7429 this can be worked round by performing a lookup first
7430 (which will fill the cache with candidate certificates)
7431 and then examining the cache for matches. This is probably
7432 the best we can do without throwing out X509_LOOKUP
7433 entirely (maybe later...).
7435 The X509_VERIFY_CTX structure has been enhanced considerably.
7437 All certificate lookup operations now go via a get_issuer()
7438 callback. Although this currently uses an X509_STORE it
7439 can be replaced by custom lookups. This is a simple way
7440 to bypass the X509_STORE hackery necessary to make this
7441 work and makes it possible to use more efficient techniques
7442 in future. A very simple version which uses a simple
7443 STACK for its trusted certificate store is also provided
7444 using X509_STORE_CTX_trusted_stack().
7446 The verify_cb() and verify() callbacks now have equivalents
7447 in the X509_STORE_CTX structure.
7449 X509_STORE_CTX also has a 'flags' field which can be used
7450 to customise the verify behaviour.
7453 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7454 excludes S/MIME capabilities.
7457 *) When a certificate request is read in keep a copy of the
7458 original encoding of the signed data and use it when outputing
7459 again. Signatures then use the original encoding rather than
7460 a decoded, encoded version which may cause problems if the
7461 request is improperly encoded.
7464 *) For consistency with other BIO_puts implementations, call
7465 buffer_write(b, ...) directly in buffer_puts instead of calling
7468 In BIO_puts, increment b->num_write as in BIO_write.
7469 [Peter.Sylvester@EdelWeb.fr]
7471 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7472 BN_zero, we may not return a BIGNUM with an array consisting of
7476 *) Avoid calling abort() from within the library when problems are
7477 detected, except if preprocessor symbols have been defined
7478 (such as REF_CHECK, BN_DEBUG etc.).
7481 *) New openssl application 'rsautl'. This utility can be
7482 used for low level RSA operations. DER public key
7483 BIO/fp routines also added.
7486 *) New Configure entry and patches for compiling on QNX 4.
7487 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7489 *) A demo state-machine implementation was sponsored by
7490 Nuron (http://www.nuron.com/) and is now available in
7491 demos/state_machine.
7494 *) New options added to the 'dgst' utility for signature
7495 generation and verification.
7498 *) Unrecognized PKCS#7 content types are now handled via a
7499 catch all ASN1_TYPE structure. This allows unsupported
7500 types to be stored as a "blob" and an application can
7501 encode and decode it manually.
7504 *) Fix various signed/unsigned issues to make a_strex.c
7506 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7508 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7509 length if passed a buffer. ASN1_INTEGER_to_BN failed
7510 if passed a NULL BN and its argument was negative.
7511 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7513 *) Modification to PKCS#7 encoding routines to output definite
7514 length encoding. Since currently the whole structures are in
7515 memory there's not real point in using indefinite length
7516 constructed encoding. However if OpenSSL is compiled with
7517 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7520 *) Added BIO_vprintf() and BIO_vsnprintf().
7523 *) Added more prefixes to parse for in the the strings written
7524 through a logging bio, to cover all the levels that are available
7525 through syslog. The prefixes are now:
7527 PANIC, EMERG, EMR => LOG_EMERG
7528 ALERT, ALR => LOG_ALERT
7529 CRIT, CRI => LOG_CRIT
7530 ERROR, ERR => LOG_ERR
7531 WARNING, WARN, WAR => LOG_WARNING
7532 NOTICE, NOTE, NOT => LOG_NOTICE
7533 INFO, INF => LOG_INFO
7534 DEBUG, DBG => LOG_DEBUG
7536 and as before, if none of those prefixes are present at the
7537 beginning of the string, LOG_ERR is chosen.
7539 On Win32, the LOG_* levels are mapped according to this:
7541 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7542 LOG_WARNING => EVENTLOG_WARNING_TYPE
7543 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7547 *) Made it possible to reconfigure with just the configuration
7548 argument "reconf" or "reconfigure". The command line arguments
7549 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7550 and are retrieved from there when reconfiguring.
7554 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7556 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7559 *) The obj_dat.pl script was messing up the sorting of object
7560 names. The reason was that it compared the quoted version
7561 of strings as a result "OCSP" > "OCSP Signing" because
7562 " > SPACE. Changed script to store unquoted versions of
7563 names and add quotes on output. It was also omitting some
7564 names from the lookup table if they were given a default
7565 value (that is if SN is missing it is given the same
7566 value as LN and vice versa), these are now added on the
7567 grounds that if an object has a name we should be able to
7568 look it up. Finally added warning output when duplicate
7569 short or long names are found.
7572 *) Changes needed for Tandem NSK.
7573 [Scott Uroff <scott@xypro.com>]
7575 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7576 RSA_padding_check_SSLv23(), special padding was never detected
7577 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7578 version rollback attacks was not effective.
7580 In s23_clnt.c, don't use special rollback-attack detection padding
7581 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7582 client; similarly, in s23_srvr.c, don't do the rollback check if
7583 SSL 2.0 is the only protocol enabled in the server.
7586 *) Make it possible to get hexdumps of unprintable data with 'openssl
7587 asn1parse'. By implication, the functions ASN1_parse_dump() and
7588 BIO_dump_indent() are added.
7591 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7592 these print out strings and name structures based on various
7593 flags including RFC2253 support and proper handling of
7594 multibyte characters. Added options to the 'x509' utility
7595 to allow the various flags to be set.
7598 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7599 Also change the functions X509_cmp_current_time() and
7600 X509_gmtime_adj() work with an ASN1_TIME structure,
7601 this will enable certificates using GeneralizedTime in validity
7602 dates to be checked.
7605 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7606 negative public key encodings) on by default,
7607 NO_NEG_PUBKEY_BUG can be set to disable it.
7610 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7611 content octets. An i2c_ASN1_OBJECT is unnecessary because
7612 the encoding can be trivially obtained from the structure.
7615 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7616 not read locks (CRYPTO_r_[un]lock).
7619 *) A first attempt at creating official support for shared
7620 libraries through configuration. I've kept it so the
7621 default is static libraries only, and the OpenSSL programs
7622 are always statically linked for now, but there are
7623 preparations for dynamic linking in place.
7624 This has been tested on Linux and Tru64.
7627 *) Randomness polling function for Win9x, as described in:
7628 Peter Gutmann, Software Generation of Practically Strong
7632 *) Fix so PRNG is seeded in req if using an already existing
7636 *) New options to smime application. -inform and -outform
7637 allow alternative formats for the S/MIME message including
7638 PEM and DER. The -content option allows the content to be
7639 specified separately. This should allow things like Netscape
7640 form signing output easier to verify.
7643 *) Fix the ASN1 encoding of tags using the 'long form'.
7646 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7647 STRING types. These convert content octets to and from the
7648 underlying type. The actual tag and length octets are
7649 already assumed to have been read in and checked. These
7650 are needed because all other string types have virtually
7651 identical handling apart from the tag. By having versions
7652 of the ASN1 functions that just operate on content octets
7653 IMPLICIT tagging can be handled properly. It also allows
7654 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7655 and ASN1_INTEGER are identical apart from the tag.
7658 *) Change the handling of OID objects as follows:
7660 - New object identifiers are inserted in objects.txt, following
7661 the syntax given in objects.README.
7662 - objects.pl is used to process obj_mac.num and create a new
7664 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7667 This is currently kind of a hack, and the perl code in objects.pl
7668 isn't very elegant, but it works as I intended. The simplest way
7669 to check that it worked correctly is to look in obj_dat.h and
7670 check the array nid_objs and make sure the objects haven't moved
7671 around (this is important!). Additions are OK, as well as
7672 consistent name changes.
7675 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7678 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7679 The given file adds to whatever has already been seeded into the
7680 random pool through the RANDFILE configuration file option or
7681 environment variable, or the default random state file.
7684 *) mkstack.pl now sorts each macro group into lexical order.
7685 Previously the output order depended on the order the files
7686 appeared in the directory, resulting in needless rewriting
7690 *) Patches to make OpenSSL compile under Win32 again. Mostly
7691 work arounds for the VC++ problem that it treats func() as
7692 func(void). Also stripped out the parts of mkdef.pl that
7693 added extra typesafe functions: these no longer exist.
7696 *) Reorganisation of the stack code. The macros are now all
7697 collected in safestack.h . Each macro is defined in terms of
7698 a "stack macro" of the form SKM_<name>(type, a, b). The
7699 DEBUG_SAFESTACK is now handled in terms of function casts,
7700 this has the advantage of retaining type safety without the
7701 use of additional functions. If DEBUG_SAFESTACK is not defined
7702 then the non typesafe macros are used instead. Also modified the
7703 mkstack.pl script to handle the new form. Needs testing to see
7704 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7705 the default if no major problems. Similar behaviour for ASN1_SET_OF
7706 and PKCS12_STACK_OF.
7709 *) When some versions of IIS use the 'NET' form of private key the
7710 key derivation algorithm is different. Normally MD5(password) is
7711 used as a 128 bit RC4 key. In the modified case
7712 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7713 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7714 as the old Netscape_RSA functions except they have an additional
7715 'sgckey' parameter which uses the modified algorithm. Also added
7716 an -sgckey command line option to the rsa utility. Thanks to
7717 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7718 algorithm to openssl-dev.
7721 *) The evp_local.h macros were using 'c.##kname' which resulted in
7722 invalid expansion on some systems (SCO 5.0.5 for example).
7723 Corrected to 'c.kname'.
7724 [Phillip Porch <root@theporch.com>]
7726 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7727 a STACK of email addresses from a certificate or request, these look
7728 in the subject name and the subject alternative name extensions and
7729 omit any duplicate addresses.
7732 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7733 This makes DSA verification about 2 % faster.
7736 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7737 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7738 plus overhead for 1024 bit moduli).
7739 This makes exponentiations about 0.5 % faster for 1024 bit
7740 exponents (as measured by "openssl speed rsa2048").
7743 *) Rename memory handling macros to avoid conflicts with other
7745 Malloc => OPENSSL_malloc
7746 Malloc_locked => OPENSSL_malloc_locked
7747 Realloc => OPENSSL_realloc
7748 Free => OPENSSL_free
7751 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7752 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7755 *) CygWin32 support.
7756 [John Jarvie <jjarvie@newsguy.com>]
7758 *) The type-safe stack code has been rejigged. It is now only compiled
7759 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7760 by default all type-specific stack functions are "#define"d back to
7761 standard stack functions. This results in more streamlined output
7762 but retains the type-safety checking possibilities of the original
7766 *) The STACK code has been cleaned up, and certain type declarations
7767 that didn't make a lot of sense have been brought in line. This has
7768 also involved a cleanup of sorts in safestack.h to more correctly
7769 map type-safe stack functions onto their plain stack counterparts.
7770 This work has also resulted in a variety of "const"ifications of
7771 lots of the code, especially "_cmp" operations which should normally
7772 be prototyped with "const" parameters anyway.
7775 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7776 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7777 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7778 where all of 'md' is used each time the PRNG is used, but 'state'
7779 is used only indexed by a cyclic counter. As entropy may not be
7780 well distributed from the beginning, 'md' is important as a
7781 chaining variable. However, the output function chains only half
7782 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7783 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7784 in all of 'state' being rewritten, with the new values depending
7785 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7788 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7789 the handshake is continued after ssl_verify_cert_chain();
7790 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7791 can lead to 'unexplainable' connection aborts later.
7792 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7794 *) Major EVP API cipher revision.
7795 Add hooks for extra EVP features. This allows various cipher
7796 parameters to be set in the EVP interface. Support added for variable
7797 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7798 setting of RC2 and RC5 parameters.
7800 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7803 Remove lots of duplicated code from the EVP library. For example *every*
7804 cipher init() function handles the 'iv' in the same way according to the
7805 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7806 for CFB and OFB modes they zero ctx->num.
7808 New functionality allows removal of S/MIME code RC2 hack.
7810 Most of the routines have the same form and so can be declared in terms
7813 By shifting this to the top level EVP_CipherInit() it can be removed from
7814 all individual ciphers. If the cipher wants to handle IVs or keys
7815 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7818 Change lots of functions like EVP_EncryptUpdate() to now return a
7819 value: although software versions of the algorithms cannot fail
7820 any installed hardware versions can.
7823 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7824 this option is set, tolerate broken clients that send the negotiated
7825 protocol version number instead of the requested protocol version
7829 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7830 i.e. non-zero for export ciphersuites, zero otherwise.
7831 Previous versions had this flag inverted, inconsistent with
7832 rsa_tmp_cb (..._TMP_RSA_CB).
7833 [Bodo Moeller; problem reported by Amit Chopra]
7835 *) Add missing DSA library text string. Work around for some IIS
7836 key files with invalid SEQUENCE encoding.
7839 *) Add a document (doc/standards.txt) that list all kinds of standards
7840 and so on that are implemented in OpenSSL.
7843 *) Enhance c_rehash script. Old version would mishandle certificates
7844 with the same subject name hash and wouldn't handle CRLs at all.
7845 Added -fingerprint option to crl utility, to support new c_rehash
7849 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7852 *) Fix for SSL server purpose checking. Server checking was
7853 rejecting certificates which had extended key usage present
7854 but no ssl client purpose.
7855 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7857 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7858 is a little unclear about how a blank password is handled.
7859 Since the password in encoded as a BMPString with terminating
7860 double NULL a zero length password would end up as just the
7861 double NULL. However no password at all is different and is
7862 handled differently in the PKCS#12 key generation code. NS
7863 treats a blank password as zero length. MSIE treats it as no
7864 password on export: but it will try both on import. We now do
7865 the same: PKCS12_parse() tries zero length and no password if
7866 the password is set to "" or NULL (NULL is now a valid password:
7867 it wasn't before) as does the pkcs12 application.
7870 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7871 perror when PEM_read_bio_X509_REQ fails, the error message must
7872 be obtained from the error queue.
7875 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7876 it in ERR_remove_state if appropriate, and change ERR_get_state
7877 accordingly to avoid race conditions (this is necessary because
7878 thread_hash is no longer constant once set).
7881 *) Bugfix for linux-elf makefile.one.
7884 *) RSA_get_default_method() will now cause a default
7885 RSA_METHOD to be chosen if one doesn't exist already.
7886 Previously this was only set during a call to RSA_new()
7887 or RSA_new_method(NULL) meaning it was possible for
7888 RSA_get_default_method() to return NULL.
7891 *) Added native name translation to the existing DSO code
7892 that will convert (if the flag to do so is set) filenames
7893 that are sufficiently small and have no path information
7894 into a canonical native form. Eg. "blah" converted to
7895 "libblah.so" or "blah.dll" etc.
7898 *) New function ERR_error_string_n(e, buf, len) which is like
7899 ERR_error_string(e, buf), but writes at most 'len' bytes
7900 including the 0 terminator. For ERR_error_string_n, 'buf'
7902 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7904 *) CONF library reworked to become more general. A new CONF
7905 configuration file reader "class" is implemented as well as a
7906 new functions (NCONF_*, for "New CONF") to handle it. The now
7907 old CONF_* functions are still there, but are reimplemented to
7908 work in terms of the new functions. Also, a set of functions
7909 to handle the internal storage of the configuration data is
7910 provided to make it easier to write new configuration file
7911 reader "classes" (I can definitely see something reading a
7912 configuration file in XML format, for example), called _CONF_*,
7913 or "the configuration storage API"...
7915 The new configuration file reading functions are:
7917 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7918 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7920 NCONF_default, NCONF_WIN32
7922 NCONF_dump_fp, NCONF_dump_bio
7924 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7925 NCONF_new creates a new CONF object. This works in the same way
7926 as other interfaces in OpenSSL, like the BIO interface.
7927 NCONF_dump_* dump the internal storage of the configuration file,
7928 which is useful for debugging. All other functions take the same
7929 arguments as the old CONF_* functions wth the exception of the
7930 first that must be a `CONF *' instead of a `LHASH *'.
7932 To make it easer to use the new classes with the old CONF_* functions,
7933 the function CONF_set_default_method is provided.
7936 *) Add '-tls1' option to 'openssl ciphers', which was already
7937 mentioned in the documentation but had not been implemented.
7938 (This option is not yet really useful because even the additional
7939 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7942 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7943 OpenSSL-based applications) load shared libraries and bind to
7944 them in a portable way.
7945 [Geoff Thorpe, with contributions from Richard Levitte]
7947 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7949 *) Make sure _lrotl and _lrotr are only used with MSVC.
7951 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7952 (the default implementation of RAND_status).
7954 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7955 to '-clrext' (= clear extensions), as intended and documented.
7956 [Bodo Moeller; inconsistency pointed out by Michael Attili
7959 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7960 was larger than the MD block size.
7961 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7963 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7964 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7965 using the passed key: if the passed key was a private key the result
7966 of X509_print(), for example, would be to print out all the private key
7970 *) des_quad_cksum() byte order bug fix.
7971 [Ulf Möller, using the problem description in krb4-0.9.7, where
7972 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7974 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7976 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7978 *) For easily testing in shell scripts whether some command
7979 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7980 returns with exit code 0 iff no command of the given name is available.
7981 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7982 the output goes to stdout and nothing is printed to stderr.
7983 Additional arguments are always ignored.
7985 Since for each cipher there is a command of the same name,
7986 the 'no-cipher' compilation switches can be tested this way.
7988 ('openssl no-XXX' is not able to detect pseudo-commands such
7989 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7992 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7995 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7996 is set; it will be thrown away anyway because each handshake creates
7998 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7999 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8000 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
8001 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8004 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8005 'Q' and 'R' lose their special meanings (quit/renegotiate).
8006 This is part of what -quiet does; unlike -quiet, -ign_eof
8007 does not suppress any output.
8010 *) Add compatibility options to the purpose and trust code. The
8011 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8012 accepts a certificate or CA, this was the previous behaviour,
8013 with all the associated security issues.
8015 X509_TRUST_COMPAT is the old trust behaviour: only and
8016 automatically trust self signed roots in certificate store. A
8017 new trust setting X509_TRUST_DEFAULT is used to specify that
8018 a purpose has no associated trust setting and it should instead
8019 use the value in the default purpose.
8022 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8023 and fix a memory leak.
8026 *) In util/mkerr.pl (which implements 'make errors'), preserve
8027 reason strings from the previous version of the .c file, as
8028 the default to have only downcase letters (and digits) in
8029 automatically generated reasons codes is not always appropriate.
8032 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8033 using strerror. Previously, ERR_reason_error_string() returned
8034 library names as reason strings for SYSerr; but SYSerr is a special
8035 case where small numbers are errno values, not library numbers.
8038 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8039 converts DSA parameters into DH parameters. (When creating parameters,
8040 DSA_generate_parameters is used.)
8043 *) Include 'length' (recommended exponent length) in C code generated
8044 by 'openssl dhparam -C'.
8047 *) The second argument to set_label in perlasm was already being used
8048 so couldn't be used as a "file scope" flag. Moved to third argument
8052 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8053 instead of RAND_bytes for encryption IVs and salts.
8056 *) Include RAND_status() into RAND_METHOD instead of implementing
8057 it only for md_rand.c Otherwise replacing the PRNG by calling
8058 RAND_set_rand_method would be impossible.
8061 *) Don't let DSA_generate_key() enter an infinite loop if the random
8062 number generation fails.
8065 *) New 'rand' application for creating pseudo-random output.
8068 *) Added configuration support for Linux/IA64
8069 [Rolf Haberrecker <rolf@suse.de>]
8071 *) Assembler module support for Mingw32.
8074 *) Shared library support for HPUX (in shlib/).
8075 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8077 *) Shared library support for Solaris gcc.
8078 [Lutz Behnke <behnke@trustcenter.de>]
8080 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8082 *) PKCS7_encrypt() was adding text MIME headers twice because they
8083 were added manually and by SMIME_crlf_copy().
8086 *) In bntest.c don't call BN_rand with zero bits argument.
8087 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8089 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8090 case was implemented. This caused BN_div_recp() to fail occasionally.
8093 *) Add an optional second argument to the set_label() in the perl
8094 assembly language builder. If this argument exists and is set
8095 to 1 it signals that the assembler should use a symbol whose
8096 scope is the entire file, not just the current function. This
8097 is needed with MASM which uses the format label:: for this scope.
8098 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8100 *) Change the ASN1 types so they are typedefs by default. Before
8101 almost all types were #define'd to ASN1_STRING which was causing
8102 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
8106 *) Change names of new functions to the new get1/get0 naming
8107 convention: After 'get1', the caller owns a reference count
8108 and has to call ..._free; 'get0' returns a pointer to some
8109 data structure without incrementing reference counters.
8110 (Some of the existing 'get' functions increment a reference
8111 counter, some don't.)
8112 Similarly, 'set1' and 'add1' functions increase reference
8113 counters or duplicate objects.
8116 *) Allow for the possibility of temp RSA key generation failure:
8117 the code used to assume it always worked and crashed on failure.
8120 *) Fix potential buffer overrun problem in BIO_printf().
8121 [Ulf Möller, using public domain code by Patrick Powell; problem
8122 pointed out by David Sacerdote <das33@cornell.edu>]
8124 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
8125 RAND_egd() and RAND_status(). In the command line application,
8126 the EGD socket can be specified like a seed file using RANDFILE
8130 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
8131 Some CAs (e.g. Verisign) distribute certificates in this form.
8134 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
8135 list to exclude them. This means that no special compilation option
8136 is needed to use anonymous DH: it just needs to be included in the
8140 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
8141 EVP_MD_type. The old functionality is available in a new macro called
8142 EVP_MD_md(). Change code that uses it and update docs.
8145 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
8146 where the 'void *' argument is replaced by a function pointer argument.
8147 Previously 'void *' was abused to point to functions, which works on
8148 many platforms, but is not correct. As these functions are usually
8149 called by macros defined in OpenSSL header files, most source code
8150 should work without changes.
8153 *) <openssl/opensslconf.h> (which is created by Configure) now contains
8154 sections with information on -D... compiler switches used for
8155 compiling the library so that applications can see them. To enable
8156 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
8157 must be defined. E.g.,
8158 #define OPENSSL_ALGORITHM_DEFINES
8159 #include <openssl/opensslconf.h>
8160 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
8161 [Richard Levitte, Ulf and Bodo Möller]
8163 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
8167 *) Change the 'other' type in certificate aux info to a STACK_OF
8168 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
8169 the required ASN1 format: arbitrary types determined by an OID.
8172 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
8173 argument to 'req'. This is not because the function is newer or
8174 better than others it just uses the work 'NEW' in the certificate
8175 request header lines. Some software needs this.
8178 *) Reorganise password command line arguments: now passwords can be
8179 obtained from various sources. Delete the PEM_cb function and make
8180 it the default behaviour: i.e. if the callback is NULL and the
8181 usrdata argument is not NULL interpret it as a null terminated pass
8182 phrase. If usrdata and the callback are NULL then the pass phrase
8183 is prompted for as usual.
8186 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
8187 the support is automatically enabled. The resulting binaries will
8188 autodetect the card and use it if present.
8189 [Ben Laurie and Compaq Inc.]
8191 *) Work around for Netscape hang bug. This sends certificate request
8192 and server done in one record. Since this is perfectly legal in the
8193 SSL/TLS protocol it isn't a "bug" option and is on by default. See
8194 the bugs/SSLv3 entry for more info.
8197 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
8200 *) Add -rand argument to smime and pkcs12 applications and read/write
8204 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
8207 *) Add command line password options to the remaining applications.
8210 *) Bug fix for BN_div_recp() for numerators with an even number of
8214 *) More tests in bntest.c, and changed test_bn output.
8217 *) ./config recognizes MacOS X now.
8220 *) Bug fix for BN_div() when the first words of num and divsor are
8221 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
8224 *) Add support for various broken PKCS#8 formats, and command line
8225 options to produce them.
8228 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
8229 get temporary BIGNUMs from a BN_CTX.
8232 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
8236 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
8237 include a #define from the old name to the new. The original intent
8238 was that statically linked binaries could for example just call
8239 SSLeay_add_all_ciphers() to just add ciphers to the table and not
8240 link with digests. This never worked becayse SSLeay_add_all_digests()
8241 and SSLeay_add_all_ciphers() were in the same source file so calling
8242 one would link with the other. They are now in separate source files.
8245 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
8248 *) Use a less unusual form of the Miller-Rabin primality test (it used
8249 a binary algorithm for exponentiation integrated into the Miller-Rabin
8250 loop, our standard modexp algorithms are faster).
8253 *) Support for the EBCDIC character set completed.
8254 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
8256 *) Source code cleanups: use const where appropriate, eliminate casts,
8257 use void * instead of char * in lhash.
8260 *) Bugfix: ssl3_send_server_key_exchange was not restartable
8261 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
8262 this the server could overwrite ephemeral keys that the client
8266 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
8267 using 50 iterations of the Rabin-Miller test.
8269 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
8270 iterations of the Rabin-Miller test as required by the appendix
8271 to FIPS PUB 186[-1]) instead of DSA_is_prime.
8272 As BN_is_prime_fasttest includes trial division, DSA parameter
8273 generation becomes much faster.
8275 This implies a change for the callback functions in DSA_is_prime
8276 and DSA_generate_parameters: The callback function is called once
8277 for each positive witness in the Rabin-Miller test, not just
8278 occasionally in the inner loop; and the parameters to the
8279 callback function now provide an iteration count for the outer
8280 loop rather than for the current invocation of the inner loop.
8281 DSA_generate_parameters additionally can call the callback
8282 function with an 'iteration count' of -1, meaning that a
8283 candidate has passed the trial division test (when q is generated
8284 from an application-provided seed, trial division is skipped).
8287 *) New function BN_is_prime_fasttest that optionally does trial
8288 division before starting the Rabin-Miller test and has
8289 an additional BN_CTX * argument (whereas BN_is_prime always
8290 has to allocate at least one BN_CTX).
8291 'callback(1, -1, cb_arg)' is called when a number has passed the
8292 trial division stage.
8295 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8299 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8302 *) New function BN_pseudo_rand().
8305 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8306 bignum version of BN_from_montgomery() with the working code from
8307 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8311 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8312 made it impossible to use the same SSL_SESSION data structure in
8313 SSL2 clients in multiple threads.
8316 *) The return value of RAND_load_file() no longer counts bytes obtained
8317 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8318 to seed the PRNG (previously an explicit byte count was required).
8319 [Ulf Möller, Bodo Möller]
8321 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8322 used (char *) instead of (void *) and had casts all over the place.
8325 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8328 *) Retain source code compatibility for BN_prime_checks macro:
8329 BN_is_prime(..., BN_prime_checks, ...) now uses
8330 BN_prime_checks_for_size to determine the appropriate number of
8331 Rabin-Miller iterations.
8334 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8335 DH_CHECK_P_NOT_SAFE_PRIME.
8336 (Check if this is true? OpenPGP calls them "strong".)
8339 *) Merge the functionality of "dh" and "gendh" programs into a new program
8340 "dhparam". The old programs are retained for now but will handle DH keys
8341 (instead of parameters) in future.
8344 *) Make the ciphers, s_server and s_client programs check the return values
8345 when a new cipher list is set.
8348 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8349 ciphers. Before when the 56bit ciphers were enabled the sorting was
8352 The syntax for the cipher sorting has been extended to support sorting by
8353 cipher-strength (using the strength_bits hard coded in the tables).
8354 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8356 Fix a bug in the cipher-command parser: when supplying a cipher command
8357 string with an "undefined" symbol (neither command nor alphanumeric
8358 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8359 an error is flagged.
8361 Due to the strength-sorting extension, the code of the
8362 ssl_create_cipher_list() function was completely rearranged. I hope that
8363 the readability was also increased :-)
8364 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8366 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8367 for the first serial number and places 2 in the serial number file. This
8368 avoids problems when the root CA is created with serial number zero and
8369 the first user certificate has the same issuer name and serial number
8373 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8374 the new code. Add documentation for this stuff.
8377 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8378 X509_*() to X509at_*() on the grounds that they don't handle X509
8379 structures and behave in an analagous way to the X509v3 functions:
8380 they shouldn't be called directly but wrapper functions should be used
8383 So we also now have some wrapper functions that call the X509at functions
8384 when passed certificate requests. (TO DO: similar things can be done with
8385 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8386 things. Some of these need some d2i or i2d and print functionality
8387 because they handle more complex structures.)
8390 *) Add missing #ifndefs that caused missing symbols when building libssl
8391 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8392 NO_RSA in ssl/s2*.c.
8393 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8395 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8396 has a return value which indicates the quality of the random data
8397 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8398 error queue. New function RAND_pseudo_bytes() generates output that is
8399 guaranteed to be unique but not unpredictable. RAND_add is like
8400 RAND_seed, but takes an extra argument for an entropy estimate
8401 (RAND_seed always assumes full entropy).
8404 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8405 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8406 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8407 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8408 false-positive rate of at most 2^-80 for random input.
8411 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8414 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8415 in the 0.9.5 release), this returns the chain
8416 from an X509_CTX structure with a dup of the stack and all
8417 the X509 reference counts upped: so the stack will exist
8418 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8421 Also make SSL_SESSION_print() print out the verify return
8425 *) Add manpage for the pkcs12 command. Also change the default
8426 behaviour so MAC iteration counts are used unless the new
8427 -nomaciter option is used. This improves file security and
8428 only older versions of MSIE (4.0 for example) need it.
8431 *) Honor the no-xxx Configure options when creating .DEF files.
8434 *) Add PKCS#10 attributes to field table: challengePassword,
8435 unstructuredName and unstructuredAddress. These are taken from
8436 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8437 international characters are used.
8439 More changes to X509_ATTRIBUTE code: allow the setting of types
8440 based on strings. Remove the 'loc' parameter when adding
8441 attributes because these will be a SET OF encoding which is sorted
8445 *) Initial changes to the 'req' utility to allow request generation
8446 automation. This will allow an application to just generate a template
8447 file containing all the field values and have req construct the
8450 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8451 used all over the place including certificate requests and PKCS#7
8452 structures. They are currently handled manually where necessary with
8453 some primitive wrappers for PKCS#7. The new functions behave in a
8454 manner analogous to the X509 extension functions: they allow
8455 attributes to be looked up by NID and added.
8457 Later something similar to the X509V3 code would be desirable to
8458 automatically handle the encoding, decoding and printing of the
8459 more complex types. The string types like challengePassword can
8460 be handled by the string table functions.
8462 Also modified the multi byte string table handling. Now there is
8463 a 'global mask' which masks out certain types. The table itself
8464 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8465 is useful when for example there is only one permissible type
8466 (as in countryName) and using the mask might result in no valid
8470 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8471 SSL_get_peer_finished to allow applications to obtain the latest
8472 Finished messages sent to the peer or expected from the peer,
8473 respectively. (SSL_get_peer_finished is usually the Finished message
8474 actually received from the peer, otherwise the protocol will be aborted.)
8476 As the Finished message are message digests of the complete handshake
8477 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8478 be used for external authentication procedures when the authentication
8479 provided by SSL/TLS is not desired or is not enough.
8482 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8483 the host supports BWX extension and if Compaq C is present on the
8484 $PATH. Just exploiting of the BWX extension results in 20-30%
8485 performance kick for some algorithms, e.g. DES and RC4 to mention
8486 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8490 *) Add support for MS "fast SGC". This is arguably a violation of the
8491 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8492 weak crypto and after checking the certificate is SGC a second one
8493 with strong crypto. MS SGC stops the first handshake after receiving
8494 the server certificate message and sends a second client hello. Since
8495 a server will typically do all the time consuming operations before
8496 expecting any further messages from the client (server key exchange
8497 is the most expensive) there is little difference between the two.
8499 To get OpenSSL to support MS SGC we have to permit a second client
8500 hello message after we have sent server done. In addition we have to
8501 reset the MAC if we do get this second client hello.
8504 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8505 if a DER encoded private key is RSA or DSA traditional format. Changed
8506 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8507 format DER encoded private key. Newer code should use PKCS#8 format which
8508 has the key type encoded in the ASN1 structure. Added DER private key
8509 support to pkcs8 application.
8512 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8513 ciphersuites has been selected (as required by the SSL 3/TLS 1
8514 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8515 is set, we interpret this as a request to violate the specification
8516 (the worst that can happen is a handshake failure, and 'correct'
8517 behaviour would result in a handshake failure anyway).
8520 *) In SSL_CTX_add_session, take into account that there might be multiple
8521 SSL_SESSION structures with the same session ID (e.g. when two threads
8522 concurrently obtain them from an external cache).
8523 The internal cache can handle only one SSL_SESSION with a given ID,
8524 so if there's a conflict, we now throw out the old one to achieve
8528 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8529 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8530 some routines that use cipher OIDs: some ciphers do not have OIDs
8531 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8535 *) Simplify the trust setting structure and code. Now we just have
8536 two sequences of OIDs for trusted and rejected settings. These will
8537 typically have values the same as the extended key usage extension
8538 and any application specific purposes.
8540 The trust checking code now has a default behaviour: it will just
8541 check for an object with the same NID as the passed id. Functions can
8542 be provided to override either the default behaviour or the behaviour
8543 for a given id. SSL client, server and email already have functions
8544 in place for compatibility: they check the NID and also return "trusted"
8545 if the certificate is self signed.
8548 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8549 traditional format into an EVP_PKEY structure.
8552 *) Add a password callback function PEM_cb() which either prompts for
8553 a password if usr_data is NULL or otherwise assumes it is a null
8554 terminated password. Allow passwords to be passed on command line
8555 environment or config files in a few more utilities.
8558 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8559 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8560 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8561 Update documentation.
8564 *) Support for ASN1 "NULL" type. This could be handled before by using
8565 ASN1_TYPE but there wasn't any function that would try to read a NULL
8566 and produce an error if it couldn't. For compatibility we also have
8567 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8568 don't allocate anything because they don't need to.
8571 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8573 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8575 *) Rebuild of the memory allocation routines used by OpenSSL code and
8576 possibly others as well. The purpose is to make an interface that
8577 provide hooks so anyone can build a separate set of allocation and
8578 deallocation routines to be used by OpenSSL, for example memory
8579 pool implementations, or something else, which was previously hard
8580 since Malloc(), Realloc() and Free() were defined as macros having
8581 the values malloc, realloc and free, respectively (except for Win32
8582 compilations). The same is provided for memory debugging code.
8583 OpenSSL already comes with functionality to find memory leaks, but
8584 this gives people a chance to debug other memory problems.
8586 With these changes, a new set of functions and macros have appeared:
8588 CRYPTO_set_mem_debug_functions() [F]
8589 CRYPTO_get_mem_debug_functions() [F]
8590 CRYPTO_dbg_set_options() [F]
8591 CRYPTO_dbg_get_options() [F]
8592 CRYPTO_malloc_debug_init() [M]
8594 The memory debug functions are NULL by default, unless the library
8595 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8596 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8597 gives the standard debugging functions that come with OpenSSL) or
8598 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8599 provided by the library user) must be used. When the standard
8600 debugging functions are used, CRYPTO_dbg_set_options can be used to
8601 request additional information:
8602 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8603 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8605 Also, things like CRYPTO_set_mem_functions will always give the
8606 expected result (the new set of functions is used for allocation
8607 and deallocation) at all times, regardless of platform and compiler
8610 To finish it up, some functions that were never use in any other
8611 way than through macros have a new API and new semantic:
8614 CRYPTO_dbg_realloc()
8617 All macros of value have retained their old syntax.
8618 [Richard Levitte and Bodo Moeller]
8620 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8621 ordering of SMIMECapabilities wasn't in "strength order" and there
8622 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8626 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8627 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8628 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8630 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8631 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8632 functionality to handle multipart/signed properly) and a utility
8633 called 'smime' to call all this stuff. This is based on code I
8634 originally wrote for Celo who have kindly allowed it to be
8635 included in OpenSSL.
8638 *) Add variants des_set_key_checked and des_set_key_unchecked of
8639 des_set_key (aka des_key_sched). Global variable des_check_key
8640 decides which of these is called by des_set_key; this way
8641 des_check_key behaves as it always did, but applications and
8642 the library itself, which was buggy for des_check_key == 1,
8643 have a cleaner way to pick the version they need.
8646 *) New function PKCS12_newpass() which changes the password of a
8650 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8651 dynamic mix. In both cases the ids can be used as an index into the
8652 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8653 functions so they accept a list of the field values and the
8654 application doesn't need to directly manipulate the X509_TRUST
8658 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8662 *) Modify the way the V3 extension code looks up extensions. This now
8663 works in a similar way to the object code: we have some "standard"
8664 extensions in a static table which is searched with OBJ_bsearch()
8665 and the application can add dynamic ones if needed. The file
8666 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8667 updated whenever a new extension is added to the core code and kept
8668 in ext_nid order. There is a simple program 'tabtest.c' which checks
8669 this. New extensions are not added too often so this file can readily
8670 be maintained manually.
8672 There are two big advantages in doing things this way. The extensions
8673 can be looked up immediately and no longer need to be "added" using
8674 X509V3_add_standard_extensions(): this function now does nothing.
8675 [Side note: I get *lots* of email saying the extension code doesn't
8676 work because people forget to call this function]
8677 Also no dynamic allocation is done unless new extensions are added:
8678 so if we don't add custom extensions there is no need to call
8679 X509V3_EXT_cleanup().
8682 *) Modify enc utility's salting as follows: make salting the default. Add a
8683 magic header, so unsalted files fail gracefully instead of just decrypting
8684 to garbage. This is because not salting is a big security hole, so people
8685 should be discouraged from doing it.
8688 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8689 digest to be passed on the command line but it only used this
8690 parameter when signing a certificate. Modified so all relevant
8691 operations are affected by the digest parameter including the
8692 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8693 DSA key was used because it didn't fix the digest.
8696 *) Initial certificate chain verify code. Currently tests the untrusted
8697 certificates for consistency with the verify purpose (which is set
8698 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8700 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8701 this is because it will reject chains with invalid extensions whereas
8702 every previous version of OpenSSL and SSLeay made no checks at all.
8704 Trust code: checks the root CA for the relevant trust settings. Trust
8705 settings have an initial value consistent with the verify purpose: e.g.
8706 if the verify purpose is for SSL client use it expects the CA to be
8707 trusted for SSL client use. However the default value can be changed to
8708 permit custom trust settings: one example of this would be to only trust
8709 certificates from a specific "secure" set of CAs.
8711 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8712 which should be used for version portability: especially since the
8713 verify structure is likely to change more often now.
8715 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8716 to set them. If not set then assume SSL clients will verify SSL servers
8719 Two new options to the verify program: -untrusted allows a set of
8720 untrusted certificates to be passed in and -purpose which sets the
8721 intended purpose of the certificate. If a purpose is set then the
8722 new chain verify code is used to check extension consistency.
8725 *) Support for the authority information access extension.
8728 *) Modify RSA and DSA PEM read routines to transparently handle
8729 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8730 public keys in a format compatible with certificate
8731 SubjectPublicKeyInfo structures. Unfortunately there were already
8732 functions called *_PublicKey_* which used various odd formats so
8733 these are retained for compatibility: however the DSA variants were
8734 never in a public release so they have been deleted. Changed dsa/rsa
8735 utilities to handle the new format: note no releases ever handled public
8736 keys so we should be OK.
8738 The primary motivation for this change is to avoid the same fiasco
8739 that dogs private keys: there are several incompatible private key
8740 formats some of which are standard and some OpenSSL specific and
8741 require various evil hacks to allow partial transparent handling and
8742 even then it doesn't work with DER formats. Given the option anything
8743 other than PKCS#8 should be dumped: but the other formats have to
8744 stay in the name of compatibility.
8746 With public keys and the benefit of hindsight one standard format
8747 is used which works with EVP_PKEY, RSA or DSA structures: though
8748 it clearly returns an error if you try to read the wrong kind of key.
8750 Added a -pubkey option to the 'x509' utility to output the public key.
8751 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8752 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8753 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8754 that do the same as the EVP_PKEY_assign_*() except they up the
8755 reference count of the added key (they don't "swallow" the
8759 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8760 CRLs would fail if the file contained no certificates or no CRLs:
8761 added a new function to read in both types and return the number
8762 read: this means that if none are read it will be an error. The
8763 DER versions of the certificate and CRL reader would always fail
8764 because it isn't possible to mix certificates and CRLs in DER format
8765 without choking one or the other routine. Changed this to just read
8766 a certificate: this is the best we can do. Also modified the code
8767 in apps/verify.c to take notice of return codes: it was previously
8768 attempting to read in certificates from NULL pointers and ignoring
8769 any errors: this is one reason why the cert and CRL reader seemed
8770 to work. It doesn't check return codes from the default certificate
8771 routines: these may well fail if the certificates aren't installed.
8774 *) Code to support otherName option in GeneralName.
8777 *) First update to verify code. Change the verify utility
8778 so it warns if it is passed a self signed certificate:
8779 for consistency with the normal behaviour. X509_verify
8780 has been modified to it will now verify a self signed
8781 certificate if *exactly* the same certificate appears
8782 in the store: it was previously impossible to trust a
8783 single self signed certificate. This means that:
8784 openssl verify ss.pem
8785 now gives a warning about a self signed certificate but
8786 openssl verify -CAfile ss.pem ss.pem
8790 *) For servers, store verify_result in SSL_SESSION data structure
8791 (and add it to external session representation).
8792 This is needed when client certificate verifications fails,
8793 but an application-provided verification callback (set by
8794 SSL_CTX_set_cert_verify_callback) allows accepting the session
8795 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8796 but returns 1): When the session is reused, we have to set
8797 ssl->verify_result to the appropriate error code to avoid
8799 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8801 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8802 case in PKCS7_dataInit() where the signed PKCS7 structure
8803 didn't contain any existing data because it was being created.
8804 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8806 *) Add a salt to the key derivation routines in enc.c. This
8807 forms the first 8 bytes of the encrypted file. Also add a
8808 -S option to allow a salt to be input on the command line.
8811 *) New function X509_cmp(). Oddly enough there wasn't a function
8812 to compare two certificates. We do this by working out the SHA1
8813 hash and comparing that. X509_cmp() will be needed by the trust
8817 *) SSL_get1_session() is like SSL_get_session(), but increments
8818 the reference count in the SSL_SESSION returned.
8819 [Geoff Thorpe <geoff@eu.c2.net>]
8821 *) Fix for 'req': it was adding a null to request attributes.
8822 Also change the X509_LOOKUP and X509_INFO code to handle
8823 certificate auxiliary information.
8826 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8830 *) Add the possibility to add extra information to the memory leak
8831 detecting output, to form tracebacks, showing from where each
8832 allocation was originated: CRYPTO_push_info("constant string") adds
8833 the string plus current file name and line number to a per-thread
8834 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8835 is like calling CYRPTO_pop_info() until the stack is empty.
8836 Also updated memory leak detection code to be multi-thread-safe.
8839 *) Add options -text and -noout to pkcs7 utility and delete the
8840 encryption options which never did anything. Update docs.
8843 *) Add options to some of the utilities to allow the pass phrase
8844 to be included on either the command line (not recommended on
8845 OSes like Unix) or read from the environment. Update the
8846 manpages and fix a few bugs.
8849 *) Add a few manpages for some of the openssl commands.
8852 *) Fix the -revoke option in ca. It was freeing up memory twice,
8853 leaking and not finding already revoked certificates.
8856 *) Extensive changes to support certificate auxiliary information.
8857 This involves the use of X509_CERT_AUX structure and X509_AUX
8858 functions. An X509_AUX function such as PEM_read_X509_AUX()
8859 can still read in a certificate file in the usual way but it
8860 will also read in any additional "auxiliary information". By
8861 doing things this way a fair degree of compatibility can be
8862 retained: existing certificates can have this information added
8863 using the new 'x509' options.
8865 Current auxiliary information includes an "alias" and some trust
8866 settings. The trust settings will ultimately be used in enhanced
8867 certificate chain verification routines: currently a certificate
8868 can only be trusted if it is self signed and then it is trusted
8872 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8873 The problem was that one of the replacement routines had not been working
8874 since SSLeay releases. For now the offending routine has been replaced
8875 with non-optimised assembler. Even so, this now gives around 95%
8876 performance improvement for 1024 bit RSA signs.
8879 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8880 handling. Most clients have the effective key size in bits equal to
8881 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8882 A few however don't do this and instead use the size of the decrypted key
8883 to determine the RC2 key length and the AlgorithmIdentifier to determine
8884 the effective key length. In this case the effective key length can still
8885 be 40 bits but the key length can be 168 bits for example. This is fixed
8886 by manually forcing an RC2 key into the EVP_PKEY structure because the
8887 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8888 the key length and effective key length are equal.
8891 *) Add a bunch of functions that should simplify the creation of
8892 X509_NAME structures. Now you should be able to do:
8893 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8894 and have it automatically work out the correct field type and fill in
8895 the structures. The more adventurous can try:
8896 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8897 and it will (hopefully) work out the correct multibyte encoding.
8900 *) Change the 'req' utility to use the new field handling and multibyte
8901 copy routines. Before the DN field creation was handled in an ad hoc
8902 way in req, ca, and x509 which was rather broken and didn't support
8903 BMPStrings or UTF8Strings. Since some software doesn't implement
8904 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8905 using the dirstring_type option. See the new comment in the default
8906 openssl.cnf for more info.
8909 *) Make crypto/rand/md_rand.c more robust:
8910 - Assure unique random numbers after fork().
8911 - Make sure that concurrent threads access the global counter and
8912 md serializably so that we never lose entropy in them
8913 or use exactly the same state in multiple threads.
8914 Access to the large state is not always serializable because
8915 the additional locking could be a performance killer, and
8916 md should be large enough anyway.
8919 *) New file apps/app_rand.c with commonly needed functionality
8920 for handling the random seed file.
8922 Use the random seed file in some applications that previously did not:
8924 dsaparam -genkey (which also ignored its '-rand' option),
8927 x509 (when signing).
8928 Except on systems with /dev/urandom, it is crucial to have a random
8929 seed file at least for key creation, DSA signing, and for DH exchanges;
8930 for RSA signatures we could do without one.
8932 gendh and gendsa (unlike genrsa) used to read only the first byte
8933 of each file listed in the '-rand' option. The function as previously
8934 found in genrsa is now in app_rand.c and is used by all programs
8935 that support '-rand'.
8938 *) In RAND_write_file, use mode 0600 for creating files;
8939 don't just chmod when it may be too late.
8942 *) Report an error from X509_STORE_load_locations
8943 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8946 *) New function ASN1_mbstring_copy() this copies a string in either
8947 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8948 into an ASN1_STRING type. A mask of permissible types is passed
8949 and it chooses the "minimal" type to use or an error if not type
8953 *) Add function equivalents to the various macros in asn1.h. The old
8954 macros are retained with an M_ prefix. Code inside the library can
8955 use the M_ macros. External code (including the openssl utility)
8956 should *NOT* in order to be "shared library friendly".
8959 *) Add various functions that can check a certificate's extensions
8960 to see if it usable for various purposes such as SSL client,
8961 server or S/MIME and CAs of these types. This is currently
8962 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8963 verification. Also added a -purpose flag to x509 utility to
8964 print out all the purposes.
8967 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8971 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8972 for, obtain and decode and extension and obtain its critical flag.
8973 This allows all the necessary extension code to be handled in a
8974 single function call.
8977 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8978 platforms. See crypto/rc4/rc4_enc.c for further details.
8981 *) New -noout option to asn1parse. This causes no output to be produced
8982 its main use is when combined with -strparse and -out to extract data
8983 from a file (which may not be in ASN.1 format).
8986 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8987 when producing the local key id.
8988 [Richard Levitte <levitte@stacken.kth.se>]
8990 *) New option -dhparam in s_server. This allows a DH parameter file to be
8991 stated explicitly. If it is not stated then it tries the first server
8992 certificate file. The previous behaviour hard coded the filename
8996 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8997 a public key to be input or output. For example:
8998 openssl rsa -in key.pem -pubout -out pubkey.pem
8999 Also added necessary DSA public key functions to handle this.
9002 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9003 in the message. This was handled by allowing
9004 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9005 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9007 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9008 to the end of the strings whereas this didn't. This would cause problems
9009 if strings read with d2i_ASN1_bytes() were later modified.
9010 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9012 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9013 data and it contains EOF it will end up returning an error. This is
9014 caused by input 46 bytes long. The cause is due to the way base64
9015 BIOs find the start of base64 encoded data. They do this by trying a
9016 trial decode on each line until they find one that works. When they
9017 do a flag is set and it starts again knowing it can pass all the
9018 data directly through the decoder. Unfortunately it doesn't reset
9019 the context it uses. This means that if EOF is reached an attempt
9020 is made to pass two EOFs through the context and this causes the
9021 resulting error. This can also cause other problems as well. As is
9022 usual with these problems it takes *ages* to find and the fix is
9023 trivial: move one line.
9024 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9026 *) Ugly workaround to get s_client and s_server working under Windows. The
9027 old code wouldn't work because it needed to select() on sockets and the
9028 tty (for keypresses and to see if data could be written). Win32 only
9029 supports select() on sockets so we select() with a 1s timeout on the
9030 sockets and then see if any characters are waiting to be read, if none
9031 are present then we retry, we also assume we can always write data to
9032 the tty. This isn't nice because the code then blocks until we've
9033 received a complete line of data and it is effectively polling the
9034 keyboard at 1s intervals: however it's quite a bit better than not
9035 working at all :-) A dedicated Windows application might handle this
9036 with an event loop for example.
9039 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9040 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9041 will be called when RSA_sign() and RSA_verify() are used. This is useful
9042 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9043 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9044 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9045 This necessitated the support of an extra signature type NID_md5_sha1
9046 for SSL signatures and modifications to the SSL library to use it instead
9047 of calling RSA_public_decrypt() and RSA_private_encrypt().
9050 *) Add new -verify -CAfile and -CApath options to the crl program, these
9051 will lookup a CRL issuers certificate and verify the signature in a
9052 similar way to the verify program. Tidy up the crl program so it
9053 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9054 less strict. It will now permit CRL extensions even if it is not
9055 a V2 CRL: this will allow it to tolerate some broken CRLs.
9058 *) Initialize all non-automatic variables each time one of the openssl
9059 sub-programs is started (this is necessary as they may be started
9060 multiple times from the "OpenSSL>" prompt).
9061 [Lennart Bang, Bodo Moeller]
9063 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9064 removing all other RSA functionality (this is what NO_RSA does). This
9065 is so (for example) those in the US can disable those operations covered
9066 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9070 *) Non-copying interface to BIO pairs.
9071 (still largely untested)
9074 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9075 ASCII string. This was handled independently in various places before.
9078 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9079 UTF8 strings a character at a time.
9082 *) Use client_version from client hello to select the protocol
9083 (s23_srvr.c) and for RSA client key exchange verification
9084 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9087 *) Add various utility functions to handle SPKACs, these were previously
9088 handled by poking round in the structure internals. Added new function
9089 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9090 print, verify and generate SPKACs. Based on an original idea from
9091 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9094 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9097 *) Allow the config file extension section to be overwritten on the
9098 command line. Based on an original idea from Massimiliano Pala
9099 <madwolf@comune.modena.it>. The new option is called -extensions
9100 and can be applied to ca, req and x509. Also -reqexts to override
9101 the request extensions in req and -crlexts to override the crl extensions
9105 *) Add new feature to the SPKAC handling in ca. Now you can include
9106 the same field multiple times by preceding it by "XXXX." for example:
9109 this is the same syntax as used in the req config file.
9112 *) Allow certificate extensions to be added to certificate requests. These
9113 are specified in a 'req_extensions' option of the req section of the
9114 config file. They can be printed out with the -text option to req but
9115 are otherwise ignored at present.
9118 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
9119 data read consists of only the final block it would not decrypted because
9120 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
9121 A misplaced 'break' also meant the decrypted final block might not be
9122 copied until the next read.
9125 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
9126 a few extra parameters to the DH structure: these will be useful if
9127 for example we want the value of 'q' or implement X9.42 DH.
9130 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
9131 provides hooks that allow the default DSA functions or functions on a
9132 "per key" basis to be replaced. This allows hardware acceleration and
9133 hardware key storage to be handled without major modification to the
9134 library. Also added low level modexp hooks and CRYPTO_EX structure and
9135 associated functions.
9138 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
9139 as "read only": it can't be written to and the buffer it points to will
9140 not be freed. Reading from a read only BIO is much more efficient than
9141 a normal memory BIO. This was added because there are several times when
9142 an area of memory needs to be read from a BIO. The previous method was
9143 to create a memory BIO and write the data to it, this results in two
9144 copies of the data and an O(n^2) reading algorithm. There is a new
9145 function BIO_new_mem_buf() which creates a read only memory BIO from
9146 an area of memory. Also modified the PKCS#7 routines to use read only
9150 *) Bugfix: ssl23_get_client_hello did not work properly when called in
9151 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
9152 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
9153 but a retry condition occured while trying to read the rest.
9156 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
9157 NID_pkcs7_encrypted by default: this was wrong since this should almost
9158 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
9159 the encrypted data type: this is a more sensible place to put it and it
9160 allows the PKCS#12 code to be tidied up that duplicated this
9164 *) Changed obj_dat.pl script so it takes its input and output files on
9165 the command line. This should avoid shell escape redirection problems
9169 *) Initial support for certificate extension requests, these are included
9170 in things like Xenroll certificate requests. Included functions to allow
9171 extensions to be obtained and added.
9174 *) -crlf option to s_client and s_server for sending newlines as
9175 CRLF (as required by many protocols).
9178 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
9180 *) Install libRSAglue.a when OpenSSL is built with RSAref.
9181 [Ralf S. Engelschall]
9183 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
9184 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
9186 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
9190 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
9191 DH parameters/keys (q is lost during that conversion, but the resulting
9192 DH parameters contain its length).
9194 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
9195 much faster than DH_generate_parameters (which creates parameters
9196 where p = 2*q + 1), and also the smaller q makes DH computations
9197 much more efficient (160-bit exponentiation instead of 1024-bit
9198 exponentiation); so this provides a convenient way to support DHE
9199 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
9200 utter importance to use
9201 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9203 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
9204 when such DH parameters are used, because otherwise small subgroup
9205 attacks may become possible!
9208 *) Avoid memory leak in i2d_DHparams.
9211 *) Allow the -k option to be used more than once in the enc program:
9212 this allows the same encrypted message to be read by multiple recipients.
9215 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
9216 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
9217 it will always use the numerical form of the OID, even if it has a short
9221 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
9222 method only got called if p,q,dmp1,dmq1,iqmp components were present,
9223 otherwise bn_mod_exp was called. In the case of hardware keys for example
9224 no private key components need be present and it might store extra data
9225 in the RSA structure, which cannot be accessed from bn_mod_exp.
9226 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
9227 private key operations.
9230 *) Added support for SPARC Linux.
9233 *) pem_password_cb function type incompatibly changed from
9234 typedef int pem_password_cb(char *buf, int size, int rwflag);
9236 ....(char *buf, int size, int rwflag, void *userdata);
9237 so that applications can pass data to their callbacks:
9238 The PEM[_ASN1]_{read,write}... functions and macros now take an
9239 additional void * argument, which is just handed through whenever
9240 the password callback is called.
9241 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
9243 New function SSL_CTX_set_default_passwd_cb_userdata.
9245 Compatibility note: As many C implementations push function arguments
9246 onto the stack in reverse order, the new library version is likely to
9247 interoperate with programs that have been compiled with the old
9248 pem_password_cb definition (PEM_whatever takes some data that
9249 happens to be on the stack as its last argument, and the callback
9250 just ignores this garbage); but there is no guarantee whatsoever that
9253 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
9254 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
9255 problems not only on Windows, but also on some Unix platforms.
9256 To avoid problematic command lines, these definitions are now in an
9257 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
9258 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
9261 *) MIPS III/IV assembler module is reimplemented.
9264 *) More DES library cleanups: remove references to srand/rand and
9265 delete an unused file.
9268 *) Add support for the the free Netwide assembler (NASM) under Win32,
9269 since not many people have MASM (ml) and it can be hard to obtain.
9270 This is currently experimental but it seems to work OK and pass all
9271 the tests. Check out INSTALL.W32 for info.
9274 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
9275 without temporary keys kept an extra copy of the server key,
9276 and connections with temporary keys did not free everything in case
9280 *) New function RSA_check_key and new openssl rsa option -check
9281 for verifying the consistency of RSA keys.
9282 [Ulf Moeller, Bodo Moeller]
9284 *) Various changes to make Win32 compile work:
9285 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
9286 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
9287 comparison" warnings.
9288 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9291 *) Add a debugging option to PKCS#5 v2 key generation function: when
9292 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9293 derived keys are printed to stderr.
9296 *) Copy the flags in ASN1_STRING_dup().
9297 [Roman E. Pavlov <pre@mo.msk.ru>]
9299 *) The x509 application mishandled signing requests containing DSA
9300 keys when the signing key was also DSA and the parameters didn't match.
9302 It was supposed to omit the parameters when they matched the signing key:
9303 the verifying software was then supposed to automatically use the CA's
9304 parameters if they were absent from the end user certificate.
9306 Omitting parameters is no longer recommended. The test was also
9307 the wrong way round! This was probably due to unusual behaviour in
9308 EVP_cmp_parameters() which returns 1 if the parameters match.
9309 This meant that parameters were omitted when they *didn't* match and
9310 the certificate was useless. Certificates signed with 'ca' didn't have
9312 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9314 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9315 The interface is as follows:
9316 Applications can use
9317 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9318 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9319 "off" is now the default.
9320 The library internally uses
9321 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9322 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9323 to disable memory-checking temporarily.
9325 Some inconsistent states that previously were possible (and were
9326 even the default) are now avoided.
9328 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9329 with each memory chunk allocated; this is occasionally more helpful
9330 than just having a counter.
9332 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9334 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9338 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9339 which largely parallels "options", but is for changing API behaviour,
9340 whereas "options" are about protocol behaviour.
9341 Initial "mode" flags are:
9343 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9344 a single record has been written.
9345 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9346 retries use the same buffer location.
9347 (But all of the contents must be
9351 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9354 *) Fix problems with no-hmac etc.
9355 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9357 *) New functions RSA_get_default_method(), RSA_set_method() and
9358 RSA_get_method(). These allows replacement of RSA_METHODs without having
9359 to mess around with the internals of an RSA structure.
9362 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9363 Also really enable memory leak checks in openssl.c and in some
9365 [Chad C. Mulligan, Bodo Moeller]
9367 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9368 up the length of negative integers. This has now been simplified to just
9369 store the length when it is first determined and use it later, rather
9370 than trying to keep track of where data is copied and updating it to
9372 [Steve Henson, reported by Brien Wheeler
9373 <bwheeler@authentica-security.com>]
9375 *) Add a new function PKCS7_signatureVerify. This allows the verification
9376 of a PKCS#7 signature but with the signing certificate passed to the
9377 function itself. This contrasts with PKCS7_dataVerify which assumes the
9378 certificate is present in the PKCS#7 structure. This isn't always the
9379 case: certificates can be omitted from a PKCS#7 structure and be
9380 distributed by "out of band" means (such as a certificate database).
9383 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9384 function prototypes in pem.h, also change util/mkdef.pl to add the
9385 necessary function names.
9388 *) mk1mf.pl (used by Windows builds) did not properly read the
9389 options set by Configure in the top level Makefile, and Configure
9390 was not even able to write more than one option correctly.
9391 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9394 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9395 file to be loaded from a BIO or FILE pointer. The BIO version will
9396 for example allow memory BIOs to contain config info.
9399 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9400 Whoever hopes to achieve shared-library compatibility across versions
9401 must use this, not the compile-time macro.
9402 (Exercise 0.9.4: Which is the minimum library version required by
9404 Note: All this applies only to multi-threaded programs, others don't
9408 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9409 through a BIO pair triggered the default case, i.e.
9410 SSLerr(...,SSL_R_UNKNOWN_STATE).
9413 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9414 can use the SSL library even if none of the specific BIOs is
9418 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9419 for the encoded length.
9420 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9422 *) Add initial documentation of the X509V3 functions.
9425 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9426 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9427 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9428 secure PKCS#8 private key format with a high iteration count.
9431 *) Fix determination of Perl interpreter: A perl or perl5
9432 _directory_ in $PATH was also accepted as the interpreter.
9433 [Ralf S. Engelschall]
9435 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9436 wrong with it but it was very old and did things like calling
9437 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9441 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9442 to use the new extension code.
9445 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9446 with macros. This should make it easier to change their form, add extra
9447 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9451 *) Add to configuration table a new entry that can specify an alternative
9452 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9453 according to Mark Crispin <MRC@Panda.COM>.
9457 *) DES CBC did not update the IV. Weird.
9460 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9461 Changing the behaviour of the former might break existing programs --
9462 where IV updating is needed, des_ncbc_encrypt can be used.
9465 *) When bntest is run from "make test" it drives bc to check its
9466 calculations, as well as internally checking them. If an internal check
9467 fails, it needs to cause bc to give a non-zero result or make test carries
9468 on without noticing the failure. Fixed.
9471 *) DES library cleanups.
9474 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9475 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9476 ciphers. NOTE: although the key derivation function has been verified
9477 against some published test vectors it has not been extensively tested
9478 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9482 *) Instead of "mkdir -p", which is not fully portable, use new
9483 Perl script "util/mkdir-p.pl".
9486 *) Rewrite the way password based encryption (PBE) is handled. It used to
9487 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9488 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9489 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9490 the 'parameter' field of the AlgorithmIdentifier is passed to the
9491 underlying key generation function so it must do its own ASN1 parsing.
9492 This has also changed the EVP_PBE_CipherInit() function which now has a
9493 'parameter' argument instead of literal salt and iteration count values
9494 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9497 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9498 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9499 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9500 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9501 value was just used as a "magic string" and not used directly its
9502 value doesn't matter.
9505 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9509 *) "linux-sparc64" configuration (ultrapenguin).
9510 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9511 "linux-sparc" configuration.
9512 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9514 *) config now generates no-xxx options for missing ciphers.
9517 *) Support the EBCDIC character set (work in progress).
9518 File ebcdic.c not yet included because it has a different license.
9519 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9521 *) Support BS2000/OSD-POSIX.
9522 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9524 *) Make callbacks for key generation use void * instead of char *.
9527 *) Make S/MIME samples compile (not yet tested).
9530 *) Additional typesafe stacks.
9533 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9537 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9539 *) New configuration variant "sco5-gcc".
9541 *) Updated some demos.
9542 [Sean O Riordain, Wade Scholine]
9544 *) Add missing BIO_free at exit of pkcs12 application.
9547 *) Fix memory leak in conf.c.
9550 *) Updates for Win32 to assembler version of MD5.
9553 *) Set #! path to perl in apps/der_chop to where we found it
9554 instead of using a fixed path.
9557 *) SHA library changes for irix64-mips4-cc.
9560 *) Improvements for VMS support.
9564 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9566 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9567 This also avoids the problems with SC4.2 and unpatched SC5.
9568 [Andy Polyakov <appro@fy.chalmers.se>]
9570 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9571 These are required because of the typesafe stack would otherwise break
9572 existing code. If old code used a structure member which used to be STACK
9573 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9574 sk_num or sk_value it would produce an error because the num, data members
9575 are not present in STACK_OF. Now it just produces a warning. sk_set
9576 replaces the old method of assigning a value to sk_value
9577 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9578 that does this will no longer work (and should use sk_set instead) but
9579 this could be regarded as a "questionable" behaviour anyway.
9582 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9583 correctly handle encrypted S/MIME data.
9586 *) Change type of various DES function arguments from des_cblock
9587 (which means, in function argument declarations, pointer to char)
9588 to des_cblock * (meaning pointer to array with 8 char elements),
9589 which allows the compiler to do more typechecking; it was like
9590 that back in SSLeay, but with lots of ugly casts.
9592 Introduce new type const_des_cblock.
9595 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9596 problems: find RecipientInfo structure that matches recipient certificate
9597 and initialise the ASN1 structures properly based on passed cipher.
9600 *) Belatedly make the BN tests actually check the results.
9603 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9604 to and from BNs: it was completely broken. New compilation option
9605 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9606 key elements as negative integers.
9609 *) Reorganize and speed up MD5.
9610 [Andy Polyakov <appro@fy.chalmers.se>]
9613 [Richard Levitte <richard@levitte.org>]
9615 *) New option -out to asn1parse to allow the parsed structure to be
9616 output to a file. This is most useful when combined with the -strparse
9617 option to examine the output of things like OCTET STRINGS.
9620 *) Make SSL library a little more fool-proof by not requiring any longer
9621 that SSL_set_{accept,connect}_state be called before
9622 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9623 in many applications because usually everything *appeared* to work as
9624 intended anyway -- now it really works as intended).
9627 *) Move openssl.cnf out of lib/.
9630 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9631 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9632 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9633 [Ralf S. Engelschall]
9635 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9636 handle PKCS#7 enveloped data properly.
9637 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9639 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9640 copying pointers. The cert_st handling is changed by this in
9641 various ways (and thus what used to be known as ctx->default_cert
9642 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9643 any longer when s->cert does not give us what we need).
9644 ssl_cert_instantiate becomes obsolete by this change.
9645 As soon as we've got the new code right (possibly it already is?),
9646 we have solved a couple of bugs of the earlier code where s->cert
9647 was used as if it could not have been shared with other SSL structures.
9649 Note that using the SSL API in certain dirty ways now will result
9650 in different behaviour than observed with earlier library versions:
9651 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9652 does not influence s as it used to.
9654 In order to clean up things more thoroughly, inside SSL_SESSION
9655 we don't use CERT any longer, but a new structure SESS_CERT
9656 that holds per-session data (if available); currently, this is
9657 the peer's certificate chain and, for clients, the server's certificate
9658 and temporary key. CERT holds only those values that can have
9659 meaningful defaults in an SSL_CTX.
9662 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9663 from the internal representation. Various PKCS#7 fixes: remove some
9664 evil casts and set the enc_dig_alg field properly based on the signing
9668 *) Allow PKCS#12 password to be set from the command line or the
9669 environment. Let 'ca' get its config file name from the environment
9670 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9674 *) Allow certificate policies extension to use an IA5STRING for the
9675 organization field. This is contrary to the PKIX definition but
9676 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9680 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9681 without disallowing inline assembler and the like for non-pedantic builds.
9684 *) Support Borland C++ builder.
9685 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9690 *) SHA-1 cleanups and performance enhancements.
9691 [Andy Polyakov <appro@fy.chalmers.se>]
9693 *) Sparc v8plus assembler for the bignum library.
9694 [Andy Polyakov <appro@fy.chalmers.se>]
9696 *) Accept any -xxx and +xxx compiler options in Configure.
9699 *) Update HPUX configuration.
9702 *) Add missing sk_<type>_unshift() function to safestack.h
9703 [Ralf S. Engelschall]
9705 *) New function SSL_CTX_use_certificate_chain_file that sets the
9706 "extra_cert"s in addition to the certificate. (This makes sense
9707 only for "PEM" format files, as chains as a whole are not
9711 *) Support verify_depth from the SSL API.
9712 x509_vfy.c had what can be considered an off-by-one-error:
9713 Its depth (which was not part of the external interface)
9714 was actually counting the number of certificates in a chain;
9715 now it really counts the depth.
9718 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9719 instead of X509err, which often resulted in confusing error
9720 messages since the error codes are not globally unique
9721 (e.g. an alleged error in ssl3_accept when a certificate
9722 didn't match the private key).
9724 *) New function SSL_CTX_set_session_id_context that allows to set a default
9725 value (so that you don't need SSL_set_session_id_context for each
9726 connection using the SSL_CTX).
9729 *) OAEP decoding bug fix.
9732 *) Support INSTALL_PREFIX for package builders, as proposed by
9736 *) New Configure options "threads" and "no-threads". For systems
9737 where the proper compiler options are known (currently Solaris
9738 and Linux), "threads" is the default.
9741 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9744 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9745 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9746 such as /usr/local/bin.
9749 *) "make linux-shared" to build shared libraries.
9750 [Niels Poppe <niels@netbox.org>]
9752 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9755 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9756 extension adding in x509 utility.
9759 *) Remove NOPROTO sections and error code comments.
9762 *) Partial rewrite of the DEF file generator to now parse the ANSI
9766 *) New Configure options --prefix=DIR and --openssldir=DIR.
9769 *) Complete rewrite of the error code script(s). It is all now handled
9770 by one script at the top level which handles error code gathering,
9771 header rewriting and C source file generation. It should be much better
9772 than the old method: it now uses a modified version of Ulf's parser to
9773 read the ANSI prototypes in all header files (thus the old K&R definitions
9774 aren't needed for error creation any more) and do a better job of
9775 translating function codes into names. The old 'ASN1 error code imbedded
9776 in a comment' is no longer necessary and it doesn't use .err files which
9777 have now been deleted. Also the error code call doesn't have to appear all
9778 on one line (which resulted in some large lines...).
9781 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9784 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9785 0 (which usually indicates a closed connection), but continue reading.
9788 *) Fix some race conditions.
9791 *) Add support for CRL distribution points extension. Add Certificate
9792 Policies and CRL distribution points documentation.
9795 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9798 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9799 8 of keying material. Merlin has also confirmed interop with this fix
9800 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9801 [Merlin Hughes <merlin@baltimore.ie>]
9803 *) Fix lots of warnings.
9804 [Richard Levitte <levitte@stacken.kth.se>]
9806 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9807 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9808 [Richard Levitte <levitte@stacken.kth.se>]
9810 *) Fix problems with sizeof(long) == 8.
9811 [Andy Polyakov <appro@fy.chalmers.se>]
9813 *) Change functions to ANSI C.
9816 *) Fix typos in error codes.
9817 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9819 *) Remove defunct assembler files from Configure.
9822 *) SPARC v8 assembler BIGNUM implementation.
9823 [Andy Polyakov <appro@fy.chalmers.se>]
9825 *) Support for Certificate Policies extension: both print and set.
9826 Various additions to support the r2i method this uses.
9829 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9830 return a const string when you are expecting an allocated buffer.
9833 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9834 types DirectoryString and DisplayText.
9837 *) Add code to allow r2i extensions to access the configuration database,
9838 add an LHASH database driver and add several ctx helper functions.
9841 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9842 fail when they extended the size of a BIGNUM.
9845 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9846 support typesafe stack.
9849 *) Fix typo in SSL_[gs]et_options().
9850 [Nils Frostberg <nils@medcom.se>]
9852 *) Delete various functions and files that belonged to the (now obsolete)
9853 old X509V3 handling code.
9856 *) New Configure option "rsaref".
9859 *) Don't auto-generate pem.h.
9862 *) Introduce type-safe ASN.1 SETs.
9865 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9866 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9868 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9869 that links with OpenSSL (well at least cause lots of warnings), but fear
9870 not: the conversion is trivial, and it eliminates loads of evil casts. A
9871 few STACKed things have been converted already. Feel free to convert more.
9872 In the fullness of time, I'll do away with the STACK type altogether.
9875 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9876 specified in <certfile> by updating the entry in the index.txt file.
9877 This way one no longer has to edit the index.txt file manually for
9878 revoking a certificate. The -revoke option does the gory details now.
9879 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9881 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9882 `-text' option at all and this way the `-noout -text' combination was
9883 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9884 [Ralf S. Engelschall]
9886 *) Make sure a corresponding plain text error message exists for the
9887 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9888 verify callback function determined that a certificate was revoked.
9889 [Ralf S. Engelschall]
9891 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9892 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9893 all available cipers including rc5, which was forgotten until now.
9894 In order to let the testing shell script know which algorithms
9895 are available, a new (up to now undocumented) command
9896 "openssl list-cipher-commands" is used.
9899 *) Bugfix: s_client occasionally would sleep in select() when
9900 it should have checked SSL_pending() first.
9903 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9904 the raw DSA values prior to ASN.1 encoding.
9907 *) Tweaks to Configure
9908 [Niels Poppe <niels@netbox.org>]
9910 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9914 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9917 *) New config option to avoid instructions that are illegal on the 80386.
9918 The default code is faster, but requires at least a 486.
9921 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9922 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9923 same as SSL2_VERSION anyway.
9926 *) New "-showcerts" option for s_client.
9929 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9930 application. Various cleanups and fixes.
9933 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9934 modify error routines to work internally. Add error codes and PBE init
9935 to library startup routines.
9938 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9939 packing functions to asn1 and evp. Changed function names and error
9940 codes along the way.
9943 *) PKCS12 integration: and so it begins... First of several patches to
9944 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9945 objects to objects.h
9948 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9949 and display support for Thawte strong extranet extension.
9952 *) Add LinuxPPC support.
9953 [Jeff Dubrule <igor@pobox.org>]
9955 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9956 bn_div_words in alpha.s.
9957 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9959 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9960 OAEP isn't supported when OpenSSL is built with RSAref.
9961 [Ulf Moeller <ulf@fitug.de>]
9963 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9964 so they no longer are missing under -DNOPROTO.
9965 [Soren S. Jorvang <soren@t.dk>]
9968 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9970 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9971 doesn't work when the session is reused. Coming soon!
9974 *) Fix a security hole, that allows sessions to be reused in the wrong
9975 context thus bypassing client cert protection! All software that uses
9976 client certs and session caches in multiple contexts NEEDS PATCHING to
9977 allow session reuse! A fuller solution is in the works.
9978 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9980 *) Some more source tree cleanups (removed obsolete files
9981 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9982 permission on "config" script to be executable) and a fix for the INSTALL
9984 [Ulf Moeller <ulf@fitug.de>]
9986 *) Remove some legacy and erroneous uses of malloc, free instead of
9988 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9990 *) Make rsa_oaep_test return non-zero on error.
9991 [Ulf Moeller <ulf@fitug.de>]
9993 *) Add support for native Solaris shared libraries. Configure
9994 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9995 if someone would make that last step automatic.
9996 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9998 *) ctx_size was not built with the right compiler during "make links". Fixed.
10001 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10002 except NULL ciphers". This means the default cipher list will no longer
10003 enable NULL ciphers. They need to be specifically enabled e.g. with
10004 the string "DEFAULT:eNULL".
10007 *) Fix to RSA private encryption routines: if p < q then it would
10008 occasionally produce an invalid result. This will only happen with
10009 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10012 *) Be less restrictive and allow also `perl util/perlpath.pl
10013 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10014 because this way one can also use an interpreter named `perl5' (which is
10015 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10016 installed as `perl').
10017 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10019 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10020 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10022 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10023 advapi32.lib to Win32 build and change the pem test comparision
10024 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10025 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10026 and crypto/des/ede_cbcm_enc.c.
10029 *) DES quad checksum was broken on big-endian architectures. Fixed.
10032 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10033 Win32 test batch file so it (might) work again. The Win32 test batch file
10034 is horrible: I feel ill....
10037 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10038 in e_os.h. Audit of header files to check ANSI and non ANSI
10039 sections: 10 functions were absent from non ANSI section and not exported
10040 from Windows DLLs. Fixed up libeay.num for new functions.
10043 *) Make `openssl version' output lines consistent.
10044 [Ralf S. Engelschall]
10046 *) Fix Win32 symbol export lists for BIO functions: Added
10047 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10048 to ms/libeay{16,32}.def.
10049 [Ralf S. Engelschall]
10051 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10052 fine under Unix and passes some trivial tests I've now added. But the
10053 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10054 added to make sure no one expects that this stuff really works in the
10055 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10056 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10058 [Ralf S. Engelschall]
10060 *) Fix the generation of two part addresses in perl.
10061 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10063 *) Add config entry for Linux on MIPS.
10064 [John Tobey <jtobey@channel1.com>]
10066 *) Make links whenever Configure is run, unless we are on Windoze.
10069 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10070 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10074 *) Add a useful kludge to allow package maintainers to specify compiler and
10075 other platforms details on the command line without having to patch the
10076 Configure script everytime: One now can use ``perl Configure
10077 <id>:<details>'', i.e. platform ids are allowed to have details appended
10078 to them (seperated by colons). This is treated as there would be a static
10079 pre-configured entry in Configure's %table under key <id> with value
10080 <details> and ``perl Configure <id>'' is called. So, when you want to
10081 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10082 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10083 now, which overrides the FreeBSD-elf entry on-the-fly.
10084 [Ralf S. Engelschall]
10086 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10089 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10090 on the `perl Configure ...' command line. This way one can compile
10091 OpenSSL libraries with Position Independent Code (PIC) which is needed
10092 for linking it into DSOs.
10093 [Ralf S. Engelschall]
10095 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10099 *) Cleaned up the LICENSE document: The official contact for any license
10100 questions now is the OpenSSL core team under openssl-core@openssl.org.
10101 And add a paragraph about the dual-license situation to make sure people
10102 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
10103 to the OpenSSL toolkit.
10104 [Ralf S. Engelschall]
10106 *) General source tree makefile cleanups: Made `making xxx in yyy...'
10107 display consistent in the source tree and replaced `/bin/rm' by `rm'.
10108 Additonally cleaned up the `make links' target: Remove unnecessary
10109 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
10110 to speed processing and no longer clutter the display with confusing
10111 stuff. Instead only the actually done links are displayed.
10112 [Ralf S. Engelschall]
10114 *) Permit null encryption ciphersuites, used for authentication only. It used
10115 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
10116 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
10120 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
10121 signed attributes when verifying signatures (this would break them),
10122 the detached data encoding was wrong and public keys obtained using
10123 X509_get_pubkey() weren't freed.
10126 *) Add text documentation for the BUFFER functions. Also added a work around
10127 to a Win95 console bug. This was triggered by the password read stuff: the
10128 last character typed gets carried over to the next fread(). If you were
10129 generating a new cert request using 'req' for example then the last
10130 character of the passphrase would be CR which would then enter the first
10134 *) Added the new `Includes OpenSSL Cryptography Software' button as
10135 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
10136 button and can be used by applications based on OpenSSL to show the
10137 relationship to the OpenSSL project.
10138 [Ralf S. Engelschall]
10140 *) Remove confusing variables in function signatures in files
10141 ssl/ssl_lib.c and ssl/ssl.h.
10142 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10144 *) Don't install bss_file.c under PREFIX/include/
10145 [Lennart Bong <lob@kulthea.stacken.kth.se>]
10147 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
10148 functions that return function pointers and has support for NT specific
10149 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
10150 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
10151 unsigned to signed types: this was killing the Win32 compile.
10154 *) Add new certificate file to stack functions,
10155 SSL_add_dir_cert_subjects_to_stack() and
10156 SSL_add_file_cert_subjects_to_stack(). These largely supplant
10157 SSL_load_client_CA_file(), and can be used to add multiple certs easily
10158 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
10159 This means that Apache-SSL and similar packages don't have to mess around
10160 to add as many CAs as they want to the preferred list.
10163 *) Experiment with doxygen documentation. Currently only partially applied to
10165 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
10166 openssl.doxy as the configuration file.
10169 *) Get rid of remaining C++-style comments which strict C compilers hate.
10170 [Ralf S. Engelschall, pointed out by Carlos Amengual]
10172 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
10173 compiled in by default: it has problems with large keys.
10176 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
10177 DH private keys and/or callback functions which directly correspond to
10178 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
10179 is needed for applications which have to configure certificates on a
10180 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
10182 For the RSA certificate situation is makes no difference, but
10183 for the DSA certificate situation this fixes the "no shared cipher"
10184 problem where the OpenSSL cipher selection procedure failed because the
10185 temporary keys were not overtaken from the context and the API provided
10186 no way to reconfigure them.
10187 The new functions now let applications reconfigure the stuff and they
10188 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
10189 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
10190 non-public-API function ssl_cert_instantiate() is used as a helper
10191 function and also to reduce code redundancy inside ssl_rsa.c.
10192 [Ralf S. Engelschall]
10194 *) Move s_server -dcert and -dkey options out of the undocumented feature
10195 area because they are useful for the DSA situation and should be
10196 recognized by the users.
10197 [Ralf S. Engelschall]
10199 *) Fix the cipher decision scheme for export ciphers: the export bits are
10200 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
10201 SSL_EXP_MASK. So, the original variable has to be used instead of the
10202 already masked variable.
10203 [Richard Levitte <levitte@stacken.kth.se>]
10205 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
10206 [Richard Levitte <levitte@stacken.kth.se>]
10208 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
10209 from `int' to `unsigned int' because it's a length and initialized by
10210 EVP_DigestFinal() which expects an `unsigned int *'.
10211 [Richard Levitte <levitte@stacken.kth.se>]
10213 *) Don't hard-code path to Perl interpreter on shebang line of Configure
10214 script. Instead use the usual Shell->Perl transition trick.
10215 [Ralf S. Engelschall]
10217 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
10218 (in addition to RSA certificates) to match the behaviour of `openssl dsa
10219 -noout -modulus' as it's already the case for `openssl rsa -noout
10220 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
10221 currently the public key is printed (a decision which was already done by
10222 `openssl dsa -modulus' in the past) which serves a similar purpose.
10223 Additionally the NO_RSA no longer completely removes the whole -modulus
10224 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
10226 [Ralf S. Engelschall]
10228 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
10229 BIO. See the source (crypto/evp/bio_ok.c) for more info.
10230 [Arne Ansper <arne@ats.cyber.ee>]
10232 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
10233 to be added. Now both 'req' and 'ca' can use new objects defined in the
10237 *) Add cool BIO that does syslog (or event log on NT).
10238 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
10240 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
10241 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
10242 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
10243 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
10246 *) Add preliminary config info for new extension code.
10249 *) Make RSA_NO_PADDING really use no padding.
10250 [Ulf Moeller <ulf@fitug.de>]
10252 *) Generate errors when private/public key check is done.
10255 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
10256 for some CRL extensions and new objects added.
10259 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
10260 key usage extension and fuller support for authority key id.
10263 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
10264 padding method for RSA, which is recommended for new applications in PKCS
10265 #1 v2.0 (RFC 2437, October 1998).
10266 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
10267 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
10268 against Bleichbacher's attack on RSA.
10269 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
10272 *) Updates to the new SSL compression code
10273 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10275 *) Fix so that the version number in the master secret, when passed
10276 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
10277 (because the server will not accept higher), that the version number
10278 is 0x03,0x01, not 0x03,0x00
10279 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10281 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
10282 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
10283 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
10286 *) Support for RAW extensions where an arbitrary extension can be
10287 created by including its DER encoding. See apps/openssl.cnf for
10291 *) Make sure latest Perl versions don't interpret some generated C array
10292 code as Perl array code in the crypto/err/err_genc.pl script.
10293 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10295 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10296 not many people have the assembler. Various Win32 compilation fixes and
10297 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10298 build instructions.
10301 *) Modify configure script 'Configure' to automatically create crypto/date.h
10302 file under Win32 and also build pem.h from pem.org. New script
10303 util/mkfiles.pl to create the MINFO file on environments that can't do a
10304 'make files': perl util/mkfiles.pl >MINFO should work.
10307 *) Major rework of DES function declarations, in the pursuit of correctness
10308 and purity. As a result, many evil casts evaporated, and some weirdness,
10309 too. You may find this causes warnings in your code. Zapping your evil
10310 casts will probably fix them. Mostly.
10313 *) Fix for a typo in asn1.h. Bug fix to object creation script
10314 obj_dat.pl. It considered a zero in an object definition to mean
10315 "end of object": none of the objects in objects.h have any zeros
10316 so it wasn't spotted.
10317 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10319 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10320 Masking (CBCM). In the absence of test vectors, the best I have been able
10321 to do is check that the decrypt undoes the encrypt, so far. Send me test
10322 vectors if you have them.
10325 *) Correct calculation of key length for export ciphers (too much space was
10326 allocated for null ciphers). This has not been tested!
10329 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10330 message is now correct (it understands "crypto" and "ssl" on its
10331 command line). There is also now an "update" option. This will update
10332 the util/ssleay.num and util/libeay.num files with any new functions.
10334 perl util/mkdef.pl crypto ssl update
10335 it will update them.
10338 *) Overhauled the Perl interface (perl/*):
10339 - ported BN stuff to OpenSSL's different BN library
10340 - made the perl/ source tree CVS-aware
10341 - renamed the package from SSLeay to OpenSSL (the files still contain
10342 their history because I've copied them in the repository)
10343 - removed obsolete files (the test scripts will be replaced
10344 by better Test::Harness variants in the future)
10345 [Ralf S. Engelschall]
10347 *) First cut for a very conservative source tree cleanup:
10348 1. merge various obsolete readme texts into doc/ssleay.txt
10349 where we collect the old documents and readme texts.
10350 2. remove the first part of files where I'm already sure that we no
10351 longer need them because of three reasons: either they are just temporary
10352 files which were left by Eric or they are preserved original files where
10353 I've verified that the diff is also available in the CVS via "cvs diff
10354 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10355 the crypto/md/ stuff).
10356 [Ralf S. Engelschall]
10358 *) More extension code. Incomplete support for subject and issuer alt
10359 name, issuer and authority key id. Change the i2v function parameters
10360 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10361 what that's for :-) Fix to ASN1 macro which messed up
10362 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10365 *) Preliminary support for ENUMERATED type. This is largely copied from the
10369 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10370 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10372 *) Make sure `make rehash' target really finds the `openssl' program.
10373 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10375 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10376 like to hear about it if this slows down other processors.
10379 *) Add CygWin32 platform information to Configure script.
10380 [Alan Batie <batie@aahz.jf.intel.com>]
10382 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10383 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10385 *) New program nseq to manipulate netscape certificate sequences
10388 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10392 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10393 but the BN code had some problems that would cause failures when
10394 doing certificate verification and some other functions.
10395 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10397 *) Add ASN1 and PEM code to support netscape certificate sequences.
10400 *) Add ASN1 and PEM code to support netscape certificate sequences.
10403 *) Add several PKIX and private extended key usage OIDs.
10406 *) Modify the 'ca' program to handle the new extension code. Modify
10407 openssl.cnf for new extension format, add comments.
10410 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10411 and add a sample to openssl.cnf so req -x509 now adds appropriate
10415 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10416 error code, add initial support to X509_print() and x509 application.
10419 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10420 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10421 stuff is currently isolated and isn't even compiled yet.
10424 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10425 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10426 Removed the versions check from X509 routines when loading extensions:
10427 this allows certain broken certificates that don't set the version
10428 properly to be processed.
10431 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10432 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10433 can still be regenerated with "make depend".
10436 *) Spelling mistake in C version of CAST-128.
10437 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10439 *) Changes to the error generation code. The perl script err-code.pl
10440 now reads in the old error codes and retains the old numbers, only
10441 adding new ones if necessary. It also only changes the .err files if new
10442 codes are added. The makefiles have been modified to only insert errors
10443 when needed (to avoid needlessly modifying header files). This is done
10444 by only inserting errors if the .err file is newer than the auto generated
10445 C file. To rebuild all the error codes from scratch (the old behaviour)
10446 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10447 or delete all the .err files.
10450 *) CAST-128 was incorrectly implemented for short keys. The C version has
10451 been fixed, but is untested. The assembler versions are also fixed, but
10452 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10453 to regenerate it if needed.
10454 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10455 Hagino <itojun@kame.net>]
10457 *) File was opened incorrectly in randfile.c.
10458 [Ulf Möller <ulf@fitug.de>]
10460 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10461 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10462 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10463 al: it's just almost always a UTCTime. Note this patch adds new error
10464 codes so do a "make errors" if there are problems.
10467 *) Correct Linux 1 recognition in config.
10468 [Ulf Möller <ulf@fitug.de>]
10470 *) Remove pointless MD5 hash when using DSA keys in ca.
10471 [Anonymous <nobody@replay.com>]
10473 *) Generate an error if given an empty string as a cert directory. Also
10474 generate an error if handed NULL (previously returned 0 to indicate an
10475 error, but didn't set one).
10476 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10478 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10481 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10482 parameters. This was causing a warning which killed off the Win32 compile.
10485 *) Remove C++ style comments from crypto/bn/bn_local.h.
10486 [Neil Costigan <neil.costigan@celocom.com>]
10488 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10489 based on a text string, looking up short and long names and finally
10490 "dot" format. The "dot" format stuff didn't work. Added new function
10491 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10492 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10493 OID is not part of the table.
10496 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10497 X509_LOOKUP_by_alias().
10500 *) Sort openssl functions by name.
10503 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10504 encryption from sample DSA keys (in case anyone is interested the password
10508 *) Make _all_ *_free functions accept a NULL pointer.
10509 [Frans Heymans <fheymans@isaserver.be>]
10511 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10513 [Anonymous <nobody@replay.com>]
10515 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10516 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10518 *) Don't blow it for numeric -newkey arguments to apps/req.
10519 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10521 *) Temp key "for export" tests were wrong in s3_srvr.c.
10522 [Anonymous <nobody@replay.com>]
10524 *) Add prototype for temp key callback functions
10525 SSL_CTX_set_tmp_{rsa,dh}_callback().
10528 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10529 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10532 *) X509_name_add_entry() freed the wrong thing after an error.
10533 [Arne Ansper <arne@ats.cyber.ee>]
10535 *) rsa_eay.c would attempt to free a NULL context.
10536 [Arne Ansper <arne@ats.cyber.ee>]
10538 *) BIO_s_socket() had a broken should_retry() on Windoze.
10539 [Arne Ansper <arne@ats.cyber.ee>]
10541 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10542 [Arne Ansper <arne@ats.cyber.ee>]
10544 *) Make sure the already existing X509_STORE->depth variable is initialized
10545 in X509_STORE_new(), but document the fact that this variable is still
10546 unused in the certificate verification process.
10547 [Ralf S. Engelschall]
10549 *) Fix the various library and apps files to free up pkeys obtained from
10550 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10553 *) Fix reference counting in X509_PUBKEY_get(). This makes
10554 demos/maurice/example2.c work, amongst others, probably.
10555 [Steve Henson and Ben Laurie]
10557 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10558 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10559 are no longer created. This way we have a single and consistent command
10560 line interface `openssl <command>', similar to `cvs <command>'.
10561 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10563 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10564 BIT STRING wrapper always have zero unused bits.
10567 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10570 *) Make the top-level INSTALL documentation easier to understand.
10573 *) Makefiles updated to exit if an error occurs in a sub-directory
10574 make (including if user presses ^C) [Paul Sutton]
10576 *) Make Montgomery context stuff explicit in RSA data structure.
10579 *) Fix build order of pem and err to allow for generated pem.h.
10582 *) Fix renumbering bug in X509_NAME_delete_entry().
10585 *) Enhanced the err-ins.pl script so it makes the error library number
10586 global and can add a library name. This is needed for external ASN1 and
10587 other error libraries.
10590 *) Fixed sk_insert which never worked properly.
10593 *) Fix ASN1 macros so they can handle indefinite length construted
10594 EXPLICIT tags. Some non standard certificates use these: they can now
10598 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10599 into a single doc/ssleay.txt bundle. This way the information is still
10600 preserved but no longer messes up this directory. Now it's new room for
10601 the new set of documenation files.
10602 [Ralf S. Engelschall]
10604 *) SETs were incorrectly DER encoded. This was a major pain, because they
10605 shared code with SEQUENCEs, which aren't coded the same. This means that
10606 almost everything to do with SETs or SEQUENCEs has either changed name or
10607 number of arguments.
10608 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10610 *) Fix test data to work with the above.
10613 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10614 was already fixed by Eric for 0.9.1 it seems.
10615 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10617 *) Autodetect FreeBSD3.
10620 *) Fix various bugs in Configure. This affects the following platforms:
10624 unixware-2.0-pentium
10628 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10629 before they are needed.
10632 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10636 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10638 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10639 changed SSLeay to OpenSSL in version strings.
10640 [Ralf S. Engelschall]
10642 *) Some fixups to the top-level documents.
10645 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10646 because the symlink to include/ was missing.
10647 [Ralf S. Engelschall]
10649 *) Incorporated the popular no-RSA/DSA-only patches
10650 which allow to compile a RSA-free SSLeay.
10651 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10653 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10654 when "ssleay" is still not found.
10655 [Ralf S. Engelschall]
10657 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10658 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10660 *) Updated the README file.
10661 [Ralf S. Engelschall]
10663 *) Added various .cvsignore files in the CVS repository subdirs
10664 to make a "cvs update" really silent.
10665 [Ralf S. Engelschall]
10667 *) Recompiled the error-definition header files and added
10668 missing symbols to the Win32 linker tables.
10669 [Ralf S. Engelschall]
10671 *) Cleaned up the top-level documents;
10672 o new files: CHANGES and LICENSE
10673 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10674 o merged COPYRIGHT into LICENSE
10675 o removed obsolete TODO file
10676 o renamed MICROSOFT to INSTALL.W32
10677 [Ralf S. Engelschall]
10679 *) Removed dummy files from the 0.9.1b source tree:
10680 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10681 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10682 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10683 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10684 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10685 [Ralf S. Engelschall]
10687 *) Added various platform portability fixes.
10690 *) The Genesis of the OpenSSL rpject:
10691 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10692 Young and Tim J. Hudson created while they were working for C2Net until
10694 [The OpenSSL Project]
10697 Changes between 0.9.0b and 0.9.1b [not released]
10699 *) Updated a few CA certificates under certs/
10702 *) Changed some BIGNUM api stuff.
10705 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10706 DGUX x86, Linux Alpha, etc.
10709 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10710 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10714 *) Add -strparse option to asn1pars program which parses nested
10716 [Dr Stephen Henson <shenson@bigfoot.com>]
10718 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10721 *) DSA fix for "ca" program.
10724 *) Added "-genkey" option to "dsaparam" program.
10727 *) Added RIPE MD160 (rmd160) message digest.
10730 *) Added -a (all) option to "ssleay version" command.
10733 *) Added PLATFORM define which is the id given to Configure.
10736 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10739 *) Extended the ASN.1 parser routines.
10742 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10745 *) Added a BN_CTX to the BN library.
10748 *) Fixed the weak key values in DES library
10751 *) Changed API in EVP library for cipher aliases.
10754 *) Added support for RC2/64bit cipher.
10757 *) Converted the lhash library to the crypto/mem.c functions.
10760 *) Added more recognized ASN.1 object ids.
10763 *) Added more RSA padding checks for SSL/TLS.
10766 *) Added BIO proxy/filter functionality.
10769 *) Added extra_certs to SSL_CTX which can be used
10770 send extra CA certificates to the client in the CA cert chain sending
10771 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10774 *) Now Fortezza is denied in the authentication phase because
10775 this is key exchange mechanism is not supported by SSLeay at all.
10778 *) Additional PKCS1 checks.
10781 *) Support the string "TLSv1" for all TLS v1 ciphers.
10784 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10785 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10788 *) Fixed a few memory leaks.
10791 *) Fixed various code and comment typos.
10794 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10795 bytes sent in the client random.
10796 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob