5 Changes between 0.9.8l and 0.9.8m [xx XXX xxxx]
7 *) The code that handled flushing of data in SSL/TLS originally used the
8 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
9 the problem outlined in PR#1949. The fix suggested there however can
10 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
11 of Apache). So instead simplify the code to flush unconditionally.
12 This should be fine since flushing with no data to flush is a no op.
15 *) Handle TLS versions 2.0 and later properly and correctly use the
16 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
17 off ancient servers have a habit of sticking around for a while...
20 *) Modify compression code so it frees up structures without using the
21 ex_data callbacks. This works around a problem where some applications
22 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
23 restarting) then use compression (e.g. SSL with compression) later.
24 This results in significant per-connection memory leaks and
25 has caused some security issues including CVE-2008-1678 and
29 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
30 change when encrypting or decrypting.
33 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
34 connect (but not renegotiate) with servers which do not support RI.
35 Until RI is more widely deployed this option is enabled by default.
38 *) Add "missing" ssl ctrls to clear options and mode.
41 *) If client attempts to renegotiate and doesn't support RI respond with
42 a no_renegotiation alert as required by RFC5746. Some renegotiating
43 TLS clients will continue a connection gracefully when they receive
44 the alert. Unfortunately OpenSSL mishandled this alert and would hang
45 waiting for a server hello which it will never receive. Now we treat a
46 received no_renegotiation alert as a fatal error. This is because
47 applications requesting a renegotiation might well expect it to succeed
48 and would have no code in place to handle the server denying it so the
49 only safe thing to do is to terminate the connection.
52 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
53 peer supports secure renegotiation and 0 otherwise. Print out peer
54 renegotiation support in s_client/s_server.
57 *) Replace the highly broken and deprecated SPKAC certification method with
58 the updated NID creation version. This should correctly handle UTF8.
61 *) Implement RFC5746. Re-enable renegotiation but require the extension
62 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
63 turns out to be a bad idea. It has been replaced by
64 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
65 SSL_CTX_set_options(). This is really not recommended unless you
66 know what you are doing.
67 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
69 *) Fixes to stateless session resumption handling. Use initial_ctx when
70 issuing and attempting to decrypt tickets in case it has changed during
71 servername handling. Use a non-zero length session ID when attempting
72 stateless session resumption: this makes it possible to determine if
73 a resumption has occurred immediately after receiving server hello
74 (several places in OpenSSL subtly assume this) instead of later in
78 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
79 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
80 fixes for a few places where the return code is not checked
82 [Julia Lawall <julia@diku.dk>]
84 *) Add --strict-warnings option to Configure script to include devteam
85 warnings in other configurations.
88 *) Add support for --libdir option and LIBDIR variable in makefiles. This
89 makes it possible to install openssl libraries in locations which
90 have names other than "lib", for example "/usr/lib64" which some
92 [Steve Henson, based on patch from Jeremy Utley]
94 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
95 X690 8.9.12 and can produce some misleading textual output of OIDs.
96 [Steve Henson, reported by Dan Kaminsky]
98 *) Delete MD2 from algorithm tables. This follows the recommendation in
99 several standards that it is not used in new applications due to
100 several cryptographic weaknesses. For binary compatibility reasons
101 the MD2 API is still compiled in by default.
104 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
108 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
109 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
111 [Guenter <lists@gknw.net>]
113 *) Fix the server certificate chain building code to use X509_verify_cert(),
114 it used to have an ad-hoc builder which was unable to cope with anything
115 other than a simple chain.
116 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
118 *) Don't check self signed certificate signatures in X509_verify_cert()
119 by default (a flag can override this): it just wastes time without
120 adding any security. As a useful side effect self signed root CAs
121 with non-FIPS digests are now usable in FIPS mode.
124 *) In dtls1_process_out_of_seq_message() the check if the current message
125 is already buffered was missing. For every new message was memory
126 allocated, allowing an attacker to perform an denial of service attack
127 with sending out of seq handshake messages until there is no memory
128 left. Additionally every future messege was buffered, even if the
129 sequence number made no sense and would be part of another handshake.
130 So only messages with sequence numbers less than 10 in advance will be
131 buffered. (CVE-2009-1378)
132 [Robin Seggelmann, discovered by Daniel Mentz]
134 *) Records are buffered if they arrive with a future epoch to be
135 processed after finishing the corresponding handshake. There is
136 currently no limitation to this buffer allowing an attacker to perform
137 a DOS attack with sending records with future epochs until there is no
138 memory left. This patch adds the pqueue_size() function to detemine
139 the size of a buffer and limits the record buffer to 100 entries.
141 [Robin Seggelmann, discovered by Daniel Mentz]
143 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
144 parent structure is freed. (CVE-2009-1379)
147 *) Handle non-blocking I/O properly in SSL_shutdown() call.
148 [Darryl Miles <darryl-mailinglists@netbauds.net>]
151 [Ilya O. <vrghost@gmail.com>]
153 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
155 *) Disable renegotiation completely - this fixes a severe security
156 problem (CVE-2009-3555) at the cost of breaking all
157 renegotiation. Renegotiation can be re-enabled by setting
158 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
159 run-time. This is really not recommended unless you know what
163 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
165 *) Don't set val to NULL when freeing up structures, it is freed up by
166 underlying code. If sizeof(void *) > sizeof(long) this can result in
167 zeroing past the valid field. (CVE-2009-0789)
168 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
170 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
171 checked correctly. This would allow some invalid signed attributes to
172 appear to verify correctly. (CVE-2009-0591)
173 [Ivan Nestlerode <inestlerode@us.ibm.com>]
175 *) Reject UniversalString and BMPString types with invalid lengths. This
176 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
177 a legal length. (CVE-2009-0590)
180 *) Set S/MIME signing as the default purpose rather than setting it
181 unconditionally. This allows applications to override it at the store
185 *) Permit restricted recursion of ASN1 strings. This is needed in practice
186 to handle some structures.
189 *) Improve efficiency of mem_gets: don't search whole buffer each time
191 [Jeremy Shapiro <jnshapir@us.ibm.com>]
193 *) New -hex option for openssl rand.
196 *) Print out UTF8String and NumericString when parsing ASN1.
199 *) Support NumericString type for name components.
202 *) Allow CC in the environment to override the automatically chosen
203 compiler. Note that nothing is done to ensure flags work with the
207 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
209 *) Properly check EVP_VerifyFinal() and similar return values
211 [Ben Laurie, Bodo Moeller, Google Security Team]
213 *) Enable TLS extensions by default.
216 *) Allow the CHIL engine to be loaded, whether the application is
217 multithreaded or not. (This does not release the developer from the
218 obligation to set up the dynamic locking callbacks.)
219 [Sander Temme <sander@temme.net>]
221 *) Use correct exit code if there is an error in dgst command.
222 [Steve Henson; problem pointed out by Roland Dirlewanger]
224 *) Tweak Configure so that you need to say "experimental-jpake" to enable
225 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
228 *) Add experimental JPAKE support, including demo authentication in
229 s_client and s_server.
232 *) Set the comparison function in v3_addr_canonize().
233 [Rob Austein <sra@hactrn.net>]
235 *) Add support for XMPP STARTTLS in s_client.
236 [Philip Paeps <philip@freebsd.org>]
238 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
239 to ensure that even with this option, only ciphersuites in the
240 server's preference list will be accepted. (Note that the option
241 applies only when resuming a session, so the earlier behavior was
242 just about the algorithm choice for symmetric cryptography.)
245 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
247 *) Fix NULL pointer dereference if a DTLS server received
248 ChangeCipherSpec as first record (CVE-2009-1386).
251 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
252 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
255 *) The fix in 0.9.8c that supposedly got rid of unsafe
256 double-checked locking was incomplete for RSA blinding,
257 addressing just one layer of what turns out to have been
258 doubly unsafe triple-checked locking.
260 So now fix this for real by retiring the MONT_HELPER macro
261 in crypto/rsa/rsa_eay.c.
263 [Bodo Moeller; problem pointed out by Marius Schilder]
265 *) Various precautionary measures:
267 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
269 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
270 (NB: This would require knowledge of the secret session ticket key
271 to exploit, in which case you'd be SOL either way.)
273 - Change bn_nist.c so that it will properly handle input BIGNUMs
274 outside the expected range.
276 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
279 [Neel Mehta, Bodo Moeller]
281 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
282 the load fails. Useful for distros.
283 [Ben Laurie and the FreeBSD team]
285 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
288 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
291 *) Expand ENGINE to support engine supplied SSL client certificate functions.
293 This work was sponsored by Logica.
296 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
297 keystores. Support for SSL/TLS client authentication too.
298 Not compiled unless enable-capieng specified to Configure.
300 This work was sponsored by Logica.
303 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
304 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
305 attribute creation routines such as certifcate requests and PKCS#12
309 Changes between 0.9.8g and 0.9.8h [28 May 2008]
311 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
312 handshake which could lead to a cilent crash as found using the
313 Codenomicon TLS test suite (CVE-2008-1672)
314 [Steve Henson, Mark Cox]
316 *) Fix double free in TLS server name extensions which could lead to
317 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
320 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
322 Clear the error queue to ensure that error entries left from
323 older function calls do not interfere with the correct operation.
324 [Lutz Jaenicke, Erik de Castro Lopo]
326 *) Remove root CA certificates of commercial CAs:
328 The OpenSSL project does not recommend any specific CA and does not
329 have any policy with respect to including or excluding any CA.
330 Therefore it does not make any sense to ship an arbitrary selection
331 of root CA certificates with the OpenSSL software.
334 *) RSA OAEP patches to fix two separate invalid memory reads.
335 The first one involves inputs when 'lzero' is greater than
336 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
337 before the beginning of from). The second one involves inputs where
338 the 'db' section contains nothing but zeroes (there is a one-byte
339 invalid read after the end of 'db').
340 [Ivan Nestlerode <inestlerode@us.ibm.com>]
342 *) Partial backport from 0.9.9-dev:
344 Introduce bn_mul_mont (dedicated Montgomery multiplication
345 procedure) as a candidate for BIGNUM assembler implementation.
346 While 0.9.9-dev uses assembler for various architectures, only
347 x86_64 is available by default here in the 0.9.8 branch, and
348 32-bit x86 is available through a compile-time setting.
350 To try the 32-bit x86 assembler implementation, use Configure
351 option "enable-montasm" (which exists only for this backport).
353 As "enable-montasm" for 32-bit x86 disclaims code stability
354 anyway, in this constellation we activate additional code
355 backported from 0.9.9-dev for further performance improvements,
356 namely BN_from_montgomery_word. (To enable this otherwise,
357 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
359 [Andy Polyakov (backport partially by Bodo Moeller)]
361 *) Add TLS session ticket callback. This allows an application to set
362 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
363 values. This is useful for key rollover for example where several key
364 sets may exist with different names.
367 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
368 This was broken until now in 0.9.8 releases, such that the only way
369 a registered ENGINE could be used (assuming it initialises
370 successfully on the host) was to explicitly set it as the default
371 for the relevant algorithms. This is in contradiction with 0.9.7
372 behaviour and the documentation. With this fix, when an ENGINE is
373 registered into a given algorithm's table of implementations, the
374 'uptodate' flag is reset so that auto-discovery will be used next
375 time a new context for that algorithm attempts to select an
377 [Ian Lister (tweaked by Geoff Thorpe)]
379 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
380 implemention in the following ways:
382 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
385 Lack of BER streaming support means one pass streaming processing is
386 only supported if data is detached: setting the streaming flag is
387 ignored for embedded content.
389 CMS support is disabled by default and must be explicitly enabled
390 with the enable-cms configuration option.
393 *) Update the GMP engine glue to do direct copies between BIGNUM and
394 mpz_t when openssl and GMP use the same limb size. Otherwise the
395 existing "conversion via a text string export" trick is still used.
396 [Paul Sheer <paulsheer@gmail.com>]
398 *) Zlib compression BIO. This is a filter BIO which compressed and
399 uncompresses any data passed through it.
402 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
403 RFC3394 compatible AES key wrapping.
406 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
407 sets string data without copying. X509_ALGOR_set0() and
408 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
409 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
410 from an X509_ATTRIBUTE structure optionally checking it occurs only
411 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
415 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
416 to get the expected BN_FLG_CONSTTIME behavior.
417 [Bodo Moeller (Google)]
421 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
422 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
423 - added some more tests to do_tests.pl
424 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
425 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
426 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
427 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
428 - various changes to netware.pl to enable gcc-cross builds on Win32
430 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
431 - various changes to fix missing prototype warnings
432 - fixed x86nasm.pl to create correct asm files for NASM COFF output
433 - added AES, WHIRLPOOL and CPUID assembler code to build files
434 - added missing AES assembler make rules to mk1mf.pl
435 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
436 [Guenter Knauf <eflash@gmx.net>]
438 *) Implement certificate status request TLS extension defined in RFC3546.
439 A client can set the appropriate parameters and receive the encoded
440 OCSP response via a callback. A server can query the supplied parameters
441 and set the encoded OCSP response in the callback. Add simplified examples
442 to s_client and s_server.
445 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
448 + Binary incompatibility of ssl_ctx_st structure
449 + DTLS interoperation with non-compliant servers
450 + Don't call get_session_cb() without proposed session
451 + Fix ia64 assembler code
452 [Andy Polyakov, Steve Henson]
454 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
456 *) DTLS Handshake overhaul. There were longstanding issues with
457 OpenSSL DTLS implementation, which were making it impossible for
458 RFC 4347 compliant client to communicate with OpenSSL server.
459 Unfortunately just fixing these incompatibilities would "cut off"
460 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
461 server keeps tolerating non RFC compliant syntax. The opposite is
462 not true, 0.9.8f client can not communicate with earlier server.
463 This update even addresses CVE-2007-4995.
466 *) Changes to avoid need for function casts in OpenSSL: some compilers
467 (gcc 4.2 and later) reject their use.
468 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
471 *) Add RFC4507 support to OpenSSL. This includes the corrections in
472 RFC4507bis. The encrypted ticket format is an encrypted encoded
473 SSL_SESSION structure, that way new session features are automatically
476 If a client application caches session in an SSL_SESSION structure
477 support is transparent because tickets are now stored in the encoded
480 The SSL_CTX structure automatically generates keys for ticket
481 protection in servers so again support should be possible
482 with no application modification.
484 If a client or server wishes to disable RFC4507 support then the option
485 SSL_OP_NO_TICKET can be set.
487 Add a TLS extension debugging callback to allow the contents of any client
488 or server extensions to be examined.
490 This work was sponsored by Google.
493 *) Add initial support for TLS extensions, specifically for the server_name
494 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
495 have new members for a host name. The SSL data structure has an
496 additional member SSL_CTX *initial_ctx so that new sessions can be
497 stored in that context to allow for session resumption, even after the
498 SSL has been switched to a new SSL_CTX in reaction to a client's
499 server_name extension.
501 New functions (subject to change):
504 SSL_get_servername_type()
507 New CTRL codes and macros (subject to change):
509 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
510 - SSL_CTX_set_tlsext_servername_callback()
511 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
512 - SSL_CTX_set_tlsext_servername_arg()
513 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
515 openssl s_client has a new '-servername ...' option.
517 openssl s_server has new options '-servername_host ...', '-cert2 ...',
518 '-key2 ...', '-servername_fatal' (subject to change). This allows
519 testing the HostName extension for a specific single host name ('-cert'
520 and '-key' remain fallbacks for handshakes without HostName
521 negotiation). If the unrecogninzed_name alert has to be sent, this by
522 default is a warning; it becomes fatal with the '-servername_fatal'
525 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
527 *) Add AES and SSE2 assembly language support to VC++ build.
530 *) Mitigate attack on final subtraction in Montgomery reduction.
533 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
534 (which previously caused an internal error).
537 *) Squeeze another 10% out of IGE mode when in != out.
540 *) AES IGE mode speedup.
541 [Dean Gaudet (Google)]
543 *) Add the Korean symmetric 128-bit cipher SEED (see
544 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
545 add SEED ciphersuites from RFC 4162:
547 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
548 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
549 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
550 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
552 To minimize changes between patchlevels in the OpenSSL 0.9.8
553 series, SEED remains excluded from compilation unless OpenSSL
554 is configured with 'enable-seed'.
557 *) Mitigate branch prediction attacks, which can be practical if a
558 single processor is shared, allowing a spy process to extract
559 information. For detailed background information, see
560 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
561 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
562 and Necessary Software Countermeasures"). The core of the change
563 are new versions BN_div_no_branch() and
564 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
565 respectively, which are slower, but avoid the security-relevant
566 conditional branches. These are automatically called by BN_div()
567 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
568 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
569 remove a conditional branch.
571 BN_FLG_CONSTTIME is the new name for the previous
572 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
573 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
574 in the exponent causes BN_mod_exp_mont() to use the alternative
575 implementation in BN_mod_exp_mont_consttime().) The old name
576 remains as a deprecated alias.
578 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
579 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
580 constant-time implementations for more than just exponentiation.
581 Here too the old name is kept as a deprecated alias.
583 BN_BLINDING_new() will now use BN_dup() for the modulus so that
584 the BN_BLINDING structure gets an independent copy of the
585 modulus. This means that the previous "BIGNUM *m" argument to
586 BN_BLINDING_new() and to BN_BLINDING_create_param() now
587 essentially becomes "const BIGNUM *m", although we can't actually
588 change this in the header file before 0.9.9. It allows
589 RSA_setup_blinding() to use BN_with_flags() on the modulus to
590 enable BN_FLG_CONSTTIME.
592 [Matthew D Wood (Intel Corp)]
594 *) In the SSL/TLS server implementation, be strict about session ID
595 context matching (which matters if an application uses a single
596 external cache for different purposes). Previously,
597 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
598 set. This did ensure strict client verification, but meant that,
599 with applications using a single external cache for quite
600 different requirements, clients could circumvent ciphersuite
601 restrictions for a given session ID context by starting a session
602 in a different context.
605 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
606 a ciphersuite string such as "DEFAULT:RSA" cannot enable
607 authentication-only ciphersuites.
610 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
611 not complete and could lead to a possible single byte overflow
612 (CVE-2007-5135) [Ben Laurie]
614 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
616 *) Since AES128 and AES256 (and similarly Camellia128 and
617 Camellia256) share a single mask bit in the logic of
618 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
619 kludge to work properly if AES128 is available and AES256 isn't
620 (or if Camellia128 is available and Camellia256 isn't).
623 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
624 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
625 When a point or a seed is encoded in a BIT STRING, we need to
626 prevent the removal of trailing zero bits to get the proper DER
627 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
628 of a NamedBitList, for which trailing 0 bits need to be removed.)
631 *) Have SSL/TLS server implementation tolerate "mismatched" record
632 protocol version while receiving ClientHello even if the
633 ClientHello is fragmented. (The server can't insist on the
634 particular protocol version it has chosen before the ServerHello
635 message has informed the client about his choice.)
638 *) Add RFC 3779 support.
639 [Rob Austein for ARIN, Ben Laurie]
641 *) Load error codes if they are not already present instead of using a
642 static variable. This allows them to be cleanly unloaded and reloaded.
643 Improve header file function name parsing.
646 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
647 or CAPABILITY handshake as required by RFCs.
650 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
652 *) Introduce limits to prevent malicious keys being able to
653 cause a denial of service. (CVE-2006-2940)
654 [Steve Henson, Bodo Moeller]
656 *) Fix ASN.1 parsing of certain invalid structures that can result
657 in a denial of service. (CVE-2006-2937) [Steve Henson]
659 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
660 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
662 *) Fix SSL client code which could crash if connecting to a
663 malicious SSLv2 server. (CVE-2006-4343)
664 [Tavis Ormandy and Will Drewry, Google Security Team]
666 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
667 match only those. Before that, "AES256-SHA" would be interpreted
668 as a pattern and match "AES128-SHA" too (since AES128-SHA got
669 the same strength classification in 0.9.7h) as we currently only
670 have a single AES bit in the ciphersuite description bitmap.
671 That change, however, also applied to ciphersuite strings such as
672 "RC4-MD5" that intentionally matched multiple ciphersuites --
673 namely, SSL 2.0 ciphersuites in addition to the more common ones
674 from SSL 3.0/TLS 1.0.
676 So we change the selection algorithm again: Naming an explicit
677 ciphersuite selects this one ciphersuite, and any other similar
678 ciphersuite (same bitmap) from *other* protocol versions.
679 Thus, "RC4-MD5" again will properly select both the SSL 2.0
680 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
682 Since SSL 2.0 does not have any ciphersuites for which the
683 128/256 bit distinction would be relevant, this works for now.
684 The proper fix will be to use different bits for AES128 and
685 AES256, which would have avoided the problems from the beginning;
686 however, bits are scarce, so we can only do this in a new release
687 (not just a patchlevel) when we can change the SSL_CIPHER
688 definition to split the single 'unsigned long mask' bitmap into
689 multiple values to extend the available space.
693 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
695 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
696 (CVE-2006-4339) [Ben Laurie and Google Security Team]
698 *) Add AES IGE and biIGE modes.
701 *) Change the Unix randomness entropy gathering to use poll() when
702 possible instead of select(), since the latter has some
703 undesirable limitations.
704 [Darryl Miles via Richard Levitte and Bodo Moeller]
706 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
707 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
708 cannot be implicitly activated as part of, e.g., the "AES" alias.
709 However, please upgrade to OpenSSL 0.9.9[-dev] for
710 non-experimental use of the ECC ciphersuites to get TLS extension
711 support, which is required for curve and point format negotiation
712 to avoid potential handshake problems.
715 *) Disable rogue ciphersuites:
717 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
718 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
719 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
721 The latter two were purportedly from
722 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
725 Also deactivate the remaining ciphersuites from
726 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
727 unofficial, and the ID has long expired.
730 *) Fix RSA blinding Heisenbug (problems sometimes occured on
731 dual-core machines) and other potential thread-safety issues.
734 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
735 versions), which is now available for royalty-free use
736 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
737 Also, add Camellia TLS ciphersuites from RFC 4132.
739 To minimize changes between patchlevels in the OpenSSL 0.9.8
740 series, Camellia remains excluded from compilation unless OpenSSL
741 is configured with 'enable-camellia'.
744 *) Disable the padding bug check when compression is in use. The padding
745 bug check assumes the first packet is of even length, this is not
746 necessarily true if compresssion is enabled and can result in false
747 positives causing handshake failure. The actual bug test is ancient
748 code so it is hoped that implementations will either have fixed it by
749 now or any which still have the bug do not support compression.
752 Changes between 0.9.8a and 0.9.8b [04 May 2006]
754 *) When applying a cipher rule check to see if string match is an explicit
755 cipher suite and only match that one cipher suite if it is.
758 *) Link in manifests for VC++ if needed.
759 [Austin Ziegler <halostatue@gmail.com>]
761 *) Update support for ECC-based TLS ciphersuites according to
762 draft-ietf-tls-ecc-12.txt with proposed changes (but without
763 TLS extensions, which are supported starting with the 0.9.9
764 branch, not in the OpenSSL 0.9.8 branch).
767 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
768 opaque EVP_CIPHER_CTX handling.
771 *) Fixes and enhancements to zlib compression code. We now only use
772 "zlib1.dll" and use the default __cdecl calling convention on Win32
773 to conform with the standards mentioned here:
774 http://www.zlib.net/DLL_FAQ.txt
775 Static zlib linking now works on Windows and the new --with-zlib-include
776 --with-zlib-lib options to Configure can be used to supply the location
777 of the headers and library. Gracefully handle case where zlib library
781 *) Several fixes and enhancements to the OID generation code. The old code
782 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
783 handle numbers larger than ULONG_MAX, truncated printing and had a
784 non standard OBJ_obj2txt() behaviour.
787 *) Add support for building of engines under engine/ as shared libraries
788 under VC++ build system.
791 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
792 Hopefully, we will not see any false combination of paths any more.
795 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
797 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
798 (part of SSL_OP_ALL). This option used to disable the
799 countermeasure against man-in-the-middle protocol-version
800 rollback in the SSL 2.0 server implementation, which is a bad
801 idea. (CVE-2005-2969)
803 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
804 for Information Security, National Institute of Advanced Industrial
805 Science and Technology [AIST], Japan)]
807 *) Add two function to clear and return the verify parameter flags.
810 *) Keep cipherlists sorted in the source instead of sorting them at
811 runtime, thus removing the need for a lock.
814 *) Avoid some small subgroup attacks in Diffie-Hellman.
815 [Nick Mathewson and Ben Laurie]
817 *) Add functions for well-known primes.
820 *) Extended Windows CE support.
821 [Satoshi Nakamura and Andy Polyakov]
823 *) Initialize SSL_METHOD structures at compile time instead of during
824 runtime, thus removing the need for a lock.
827 *) Make PKCS7_decrypt() work even if no certificate is supplied by
828 attempting to decrypt each encrypted key in turn. Add support to
832 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
834 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
837 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
840 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
841 key into the same file any more.
844 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
847 *) Add -utf8 command line and config file option to 'ca'.
848 [Stefan <stf@udoma.org]
850 *) Removed the macro des_crypt(), as it seems to conflict with some
851 libraries. Use DES_crypt().
854 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
855 involves renaming the source and generated shared-libs for
856 both. The engines will accept the corrected or legacy ids
857 ('ncipher' and '4758_cca' respectively) when binding. NB,
858 this only applies when building 'shared'.
859 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
861 *) Add attribute functions to EVP_PKEY structure. Modify
862 PKCS12_create() to recognize a CSP name attribute and
863 use it. Make -CSP option work again in pkcs12 utility.
866 *) Add new functionality to the bn blinding code:
867 - automatic re-creation of the BN_BLINDING parameters after
868 a fixed number of uses (currently 32)
869 - add new function for parameter creation
870 - introduce flags to control the update behaviour of the
871 BN_BLINDING parameters
872 - hide BN_BLINDING structure
873 Add a second BN_BLINDING slot to the RSA structure to improve
874 performance when a single RSA object is shared among several
878 *) Add support for DTLS.
879 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
881 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
882 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
885 *) Remove buggy and incompletet DH cert support from
886 ssl/ssl_rsa.c and ssl/s3_both.c
889 *) Use SHA-1 instead of MD5 as the default digest algorithm for
890 the apps/openssl applications.
893 *) Compile clean with "-Wall -Wmissing-prototypes
894 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
895 DEBUG_SAFESTACK must also be set.
898 *) Change ./Configure so that certain algorithms can be disabled by default.
899 The new counterpiece to "no-xxx" is "enable-xxx".
901 The patented RC5 and MDC2 algorithms will now be disabled unless
902 "enable-rc5" and "enable-mdc2", respectively, are specified.
904 (IDEA remains enabled despite being patented. This is because IDEA
905 is frequently required for interoperability, and there is no license
906 fee for non-commercial use. As before, "no-idea" can be used to
907 avoid this algorithm.)
911 *) Add processing of proxy certificates (see RFC 3820). This work was
912 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
913 EGEE (Enabling Grids for E-science in Europe).
916 *) RC4 performance overhaul on modern architectures/implementations, such
917 as Intel P4, IA-64 and AMD64.
920 *) New utility extract-section.pl. This can be used specify an alternative
921 section number in a pod file instead of having to treat each file as
922 a separate case in Makefile. This can be done by adding two lines to the
925 =for comment openssl_section:XXX
927 The blank line is mandatory.
931 *) New arguments -certform, -keyform and -pass for s_client and s_server
932 to allow alternative format key and certificate files and passphrase
936 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
937 update associated structures and add various utility functions.
939 Add new policy related verify parameters, include policy checking in
940 standard verify code. Enhance 'smime' application with extra parameters
941 to support policy checking and print out.
944 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
945 Nehemiah processors. These extensions support AES encryption in hardware
946 as well as RNG (though RNG support is currently disabled).
947 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
949 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
952 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
953 [Andy Polyakov and a number of other people]
955 *) Improved PowerPC platform support. Most notably BIGNUM assembler
956 implementation contributed by IBM.
957 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
959 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
960 exponent rather than 'unsigned long'. There is a corresponding change to
961 the new 'rsa_keygen' element of the RSA_METHOD structure.
962 [Jelte Jansen, Geoff Thorpe]
964 *) Functionality for creating the initial serial number file is now
965 moved from CA.pl to the 'ca' utility with a new option -create_serial.
967 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
968 number file to 1, which is bound to cause problems. To avoid
969 the problems while respecting compatibility between different 0.9.7
970 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
971 CA.pl for serial number initialization. With the new release 0.9.8,
972 we can fix the problem directly in the 'ca' utility.)
975 *) Reduced header interdepencies by declaring more opaque objects in
976 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
977 give fewer recursive includes, which could break lazy source code - so
978 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
979 developers should define this symbol when building and using openssl to
980 ensure they track the recommended behaviour, interfaces, [etc], but
981 backwards-compatible behaviour prevails when this isn't defined.
984 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
987 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
988 This will generate a random key of the appropriate length based on the
989 cipher context. The EVP_CIPHER can provide its own random key generation
990 routine to support keys of a specific form. This is used in the des and
991 3des routines to generate a key of the correct parity. Update S/MIME
992 code to use new functions and hence generate correct parity DES keys.
993 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
994 valid (weak or incorrect parity).
997 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
998 as looking them up. This is useful when the verified structure may contain
999 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1000 present unless the new PKCS7_NO_CRL flag is asserted.
1003 *) Extend ASN1 oid configuration module. It now additionally accepts the
1006 shortName = some long name, 1.2.3.4
1009 *) Reimplemented the BN_CTX implementation. There is now no more static
1010 limitation on the number of variables it can handle nor the depth of the
1011 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1012 information can now expand as required, and rather than having a single
1013 static array of bignums, BN_CTX now uses a linked-list of such arrays
1014 allowing it to expand on demand whilst maintaining the usefulness of
1015 BN_CTX's "bundling".
1018 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1019 to allow all RSA operations to function using a single BN_CTX.
1022 *) Preliminary support for certificate policy evaluation and checking. This
1023 is initially intended to pass the tests outlined in "Conformance Testing
1024 of Relying Party Client Certificate Path Processing Logic" v1.07.
1027 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1028 remained unused and not that useful. A variety of other little bignum
1029 tweaks and fixes have also been made continuing on from the audit (see
1033 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1034 associated ASN1, EVP and SSL functions and old ASN1 macros.
1037 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1038 and this should never fail. So the return value from the use of
1039 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1040 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1043 *) BN_CTX_get() should return zero-valued bignums, providing the same
1044 initialised value as BN_new().
1045 [Geoff Thorpe, suggested by Ulf Möller]
1047 *) Support for inhibitAnyPolicy certificate extension.
1050 *) An audit of the BIGNUM code is underway, for which debugging code is
1051 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1052 is considered valid when processing BIGNUMs, and causes execution to
1053 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1054 further steps are taken to deliberately pollute unused data in BIGNUM
1055 structures to try and expose faulty code further on. For now, openssl will
1056 (in its default mode of operation) continue to tolerate the inconsistent
1057 forms that it has tolerated in the past, but authors and packagers should
1058 consider trying openssl and their own applications when compiled with
1059 these debugging symbols defined. It will help highlight potential bugs in
1060 their own code, and will improve the test coverage for OpenSSL itself. At
1061 some point, these tighter rules will become openssl's default to improve
1062 maintainability, though the assert()s and other overheads will remain only
1063 in debugging configurations. See bn.h for more details.
1064 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1066 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1067 that can only be obtained through BN_CTX_new() (which implicitly
1068 initialises it). The presence of this function only made it possible
1069 to overwrite an existing structure (and cause memory leaks).
1072 *) Because of the callback-based approach for implementing LHASH as a
1073 template type, lh_insert() adds opaque objects to hash-tables and
1074 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1075 to clean up those corresponding objects before destroying the hash table
1076 (and losing the object pointers). So some over-zealous constifications in
1077 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1078 objects as "const" and the lh_doall[_arg] callback wrappers are not
1079 prototyped to have "const" restrictions on the object pointers they are
1080 given (and so aren't required to cast them away any more).
1083 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1084 (speed) prefers to use its own implementation. The two implementations
1085 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1086 its object type properly exposed (MS_TM) instead of casting to/from "char
1087 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1088 aren't necessarily the greatest nomenclatures - but this is what was used
1089 internally to the implementation so I've used that for now.
1092 *) Ensure that deprecated functions do not get compiled when
1093 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1094 the self-tests were still using deprecated key-generation functions so
1095 these have been updated also.
1098 *) Reorganise PKCS#7 code to separate the digest location functionality
1099 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1100 New function PKCS7_set_digest() to set the digest type for PKCS#7
1101 digestedData type. Add additional code to correctly generate the
1102 digestedData type and add support for this type in PKCS7 initialization
1106 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1107 structure of type "other".
1110 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1111 sure the loop does correctly stop and breaking ("division by zero")
1112 modulus operations are not performed. The (pre-generated) prime
1113 table crypto/bn/bn_prime.h was already correct, but it could not be
1114 re-generated on some platforms because of the "division by zero"
1115 situation in the script.
1116 [Ralf S. Engelschall]
1118 *) Update support for ECC-based TLS ciphersuites according to
1119 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1120 SHA-1 now is only used for "small" curves (where the
1121 representation of a field element takes up to 24 bytes); for
1122 larger curves, the field element resulting from ECDH is directly
1123 used as premaster secret.
1124 [Douglas Stebila (Sun Microsystems Laboratories)]
1126 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1127 curve secp160r1 to the tests.
1128 [Douglas Stebila (Sun Microsystems Laboratories)]
1130 *) Add the possibility to load symbols globally with DSO.
1131 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1133 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1134 control of the error stack.
1137 *) Add support for STORE in ENGINE.
1140 *) Add the STORE type. The intention is to provide a common interface
1141 to certificate and key stores, be they simple file-based stores, or
1142 HSM-type store, or LDAP stores, or...
1143 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1146 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1147 pass a list of arguments to any function as well as provide a way
1148 for a function to pass data back to the caller.
1151 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1152 works like BUF_strdup() but can be used to duplicate a portion of
1153 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1157 *) Add the function sk_find_ex() which works like sk_find(), but will
1158 return an index to an element even if an exact match couldn't be
1159 found. The index is guaranteed to point at the element where the
1160 searched-for key would be inserted to preserve sorting order.
1163 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1164 takes an extra flags argument for optional functionality. Currently,
1165 the following flags are defined:
1167 OBJ_BSEARCH_VALUE_ON_NOMATCH
1168 This one gets OBJ_bsearch_ex() to return a pointer to the first
1169 element where the comparing function returns a negative or zero
1172 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1173 This one gets OBJ_bsearch_ex() to return a pointer to the first
1174 element where the comparing function returns zero. This is useful
1175 if there are more than one element where the comparing function
1179 *) Make it possible to create self-signed certificates with 'openssl ca'
1180 in such a way that the self-signed certificate becomes part of the
1181 CA database and uses the same mechanisms for serial number generation
1182 as all other certificate signing. The new flag '-selfsign' enables
1183 this functionality. Adapt CA.sh and CA.pl.in.
1186 *) Add functionality to check the public key of a certificate request
1187 against a given private. This is useful to check that a certificate
1188 request can be signed by that key (self-signing).
1191 *) Make it possible to have multiple active certificates with the same
1192 subject in the CA index file. This is done only if the keyword
1193 'unique_subject' is set to 'no' in the main CA section (default
1194 if 'CA_default') of the configuration file. The value is saved
1195 with the database itself in a separate index attribute file,
1196 named like the index file with '.attr' appended to the name.
1199 *) Generate muti valued AVAs using '+' notation in config files for
1203 *) Support for nameConstraints certificate extension.
1206 *) Support for policyConstraints certificate extension.
1209 *) Support for policyMappings certificate extension.
1212 *) Make sure the default DSA_METHOD implementation only uses its
1213 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1214 and change its own handlers to be NULL so as to remove unnecessary
1215 indirection. This lets alternative implementations fallback to the
1216 default implementation more easily.
1219 *) Support for directoryName in GeneralName related extensions
1223 *) Make it possible to link applications using Makefile.shared.
1224 Make that possible even when linking against static libraries!
1227 *) Support for single pass processing for S/MIME signing. This now
1228 means that S/MIME signing can be done from a pipe, in addition
1229 cleartext signing (multipart/signed type) is effectively streaming
1230 and the signed data does not need to be all held in memory.
1232 This is done with a new flag PKCS7_STREAM. When this flag is set
1233 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1234 is done after the data is output (and digests calculated) in
1235 SMIME_write_PKCS7().
1238 *) Add full support for -rpath/-R, both in shared libraries and
1239 applications, at least on the platforms where it's known how
1243 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1244 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1245 will now compute a table of multiples of the generator that
1246 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1247 faster (notably in the case of a single point multiplication,
1248 scalar * generator).
1249 [Nils Larsch, Bodo Moeller]
1251 *) IPv6 support for certificate extensions. The various extensions
1252 which use the IP:a.b.c.d can now take IPv6 addresses using the
1253 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1257 *) Added an ENGINE that implements RSA by performing private key
1258 exponentiations with the GMP library. The conversions to and from
1259 GMP's mpz_t format aren't optimised nor are any montgomery forms
1260 cached, and on x86 it appears OpenSSL's own performance has caught up.
1261 However there are likely to be other architectures where GMP could
1262 provide a boost. This ENGINE is not built in by default, but it can be
1263 specified at Configure time and should be accompanied by the necessary
1264 linker additions, eg;
1265 ./config -DOPENSSL_USE_GMP -lgmp
1268 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1269 testing availability of engines with "-t" - the old behaviour is
1270 produced by increasing the feature's verbosity with "-tt".
1273 *) ECDSA routines: under certain error conditions uninitialized BN objects
1274 could be freed. Solution: make sure initialization is performed early
1275 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1279 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1280 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1281 software implementations. For DSA and DH, parameter generation can
1282 also be overriden by providing the appropriate method callbacks.
1285 *) Change the "progress" mechanism used in key-generation and
1286 primality testing to functions that take a new BN_GENCB pointer in
1287 place of callback/argument pairs. The new API functions have "_ex"
1288 postfixes and the older functions are reimplemented as wrappers for
1289 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1290 declarations of the old functions to help (graceful) attempts to
1291 migrate to the new functions. Also, the new key-generation API
1292 functions operate on a caller-supplied key-structure and return
1293 success/failure rather than returning a key or NULL - this is to
1294 help make "keygen" another member function of RSA_METHOD etc.
1296 Example for using the new callback interface:
1298 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1302 BN_GENCB_set(&my_cb, my_callback, my_arg);
1304 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1305 /* For the meaning of a, b in calls to my_callback(), see the
1306 * documentation of the function that calls the callback.
1307 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1308 * my_callback should return 1 if it wants BN_is_prime_ex()
1309 * to continue, or 0 to stop.
1314 *) Change the ZLIB compression method to be stateful, and make it
1315 available to TLS with the number defined in
1316 draft-ietf-tls-compression-04.txt.
1319 *) Add the ASN.1 structures and functions for CertificatePair, which
1320 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1322 CertificatePair ::= SEQUENCE {
1323 forward [0] Certificate OPTIONAL,
1324 reverse [1] Certificate OPTIONAL,
1325 -- at least one of the pair shall be present -- }
1327 Also implement the PEM functions to read and write certificate
1328 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1330 This needed to be defined, mostly for the sake of the LDAP
1331 attribute crossCertificatePair, but may prove useful elsewhere as
1335 *) Make it possible to inhibit symlinking of shared libraries in
1336 Makefile.shared, for Cygwin's sake.
1339 *) Extend the BIGNUM API by creating a function
1340 void BN_set_negative(BIGNUM *a, int neg);
1341 and a macro that behave like
1342 int BN_is_negative(const BIGNUM *a);
1344 to avoid the need to access 'a->neg' directly in applications.
1347 *) Implement fast modular reduction for pseudo-Mersenne primes
1348 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1349 EC_GROUP_new_curve_GFp() will now automatically use this
1351 [Nils Larsch <nla@trustcenter.de>]
1353 *) Add new lock type (CRYPTO_LOCK_BN).
1356 *) Change the ENGINE framework to automatically load engines
1357 dynamically from specific directories unless they could be
1358 found to already be built in or loaded. Move all the
1359 current engines except for the cryptodev one to a new
1361 The engines in engines/ are built as shared libraries if
1362 the "shared" options was given to ./Configure or ./config.
1363 Otherwise, they are inserted in libcrypto.a.
1364 /usr/local/ssl/engines is the default directory for dynamic
1365 engines, but that can be overriden at configure time through
1366 the usual use of --prefix and/or --openssldir, and at run
1367 time with the environment variable OPENSSL_ENGINES.
1368 [Geoff Thorpe and Richard Levitte]
1370 *) Add Makefile.shared, a helper makefile to build shared
1371 libraries. Addapt Makefile.org.
1374 *) Add version info to Win32 DLLs.
1375 [Peter 'Luna' Runestig" <peter@runestig.com>]
1377 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1378 can be added using this API to created arbitrary PKCS#12
1379 files while avoiding the low level API.
1381 New options to PKCS12_create(), key or cert can be NULL and
1382 will then be omitted from the output file. The encryption
1383 algorithm NIDs can be set to -1 for no encryption, the mac
1384 iteration count can be set to 0 to omit the mac.
1386 Enhance pkcs12 utility by making the -nokeys and -nocerts
1387 options work when creating a PKCS#12 file. New option -nomac
1388 to omit the mac, NONE can be set for an encryption algorithm.
1389 New code is modified to use the enhanced PKCS12_create()
1390 instead of the low level API.
1393 *) Extend ASN1 encoder to support indefinite length constructed
1394 encoding. This can output sequences tags and octet strings in
1395 this form. Modify pk7_asn1.c to support indefinite length
1396 encoding. This is experimental and needs additional code to
1397 be useful, such as an ASN1 bio and some enhanced streaming
1400 Extend template encode functionality so that tagging is passed
1401 down to the template encoder.
1404 *) Let 'openssl req' fail if an argument to '-newkey' is not
1405 recognized instead of using RSA as a default.
1408 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1409 As these are not official, they are not included in "ALL";
1410 the "ECCdraft" ciphersuite group alias can be used to select them.
1411 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1413 *) Add ECDH engine support.
1414 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1416 *) Add ECDH in new directory crypto/ecdh/.
1417 [Douglas Stebila (Sun Microsystems Laboratories)]
1419 *) Let BN_rand_range() abort with an error after 100 iterations
1420 without success (which indicates a broken PRNG).
1423 *) Change BN_mod_sqrt() so that it verifies that the input value
1424 is really the square of the return value. (Previously,
1425 BN_mod_sqrt would show GIGO behaviour.)
1428 *) Add named elliptic curves over binary fields from X9.62, SECG,
1429 and WAP/WTLS; add OIDs that were still missing.
1431 [Sheueling Chang Shantz and Douglas Stebila
1432 (Sun Microsystems Laboratories)]
1434 *) Extend the EC library for elliptic curves over binary fields
1435 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1438 EC_GF2m_simple_method
1442 EC_GROUP_new_curve_GF2m
1443 EC_GROUP_set_curve_GF2m
1444 EC_GROUP_get_curve_GF2m
1445 EC_POINT_set_affine_coordinates_GF2m
1446 EC_POINT_get_affine_coordinates_GF2m
1447 EC_POINT_set_compressed_coordinates_GF2m
1449 Point compression for binary fields is disabled by default for
1450 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1453 As binary polynomials are represented as BIGNUMs, various members
1454 of the EC_GROUP and EC_POINT data structures can be shared
1455 between the implementations for prime fields and binary fields;
1456 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1457 are essentially identical to their ..._GFp counterparts.
1458 (For simplicity, the '..._GFp' prefix has been dropped from
1459 various internal method names.)
1461 An internal 'field_div' method (similar to 'field_mul' and
1462 'field_sqr') has been added; this is used only for binary fields.
1464 [Sheueling Chang Shantz and Douglas Stebila
1465 (Sun Microsystems Laboratories)]
1467 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1468 through methods ('mul', 'precompute_mult').
1470 The generic implementations (now internally called 'ec_wNAF_mul'
1471 and 'ec_wNAF_precomputed_mult') remain the default if these
1472 methods are undefined.
1474 [Sheueling Chang Shantz and Douglas Stebila
1475 (Sun Microsystems Laboratories)]
1477 *) New function EC_GROUP_get_degree, which is defined through
1478 EC_METHOD. For curves over prime fields, this returns the bit
1479 length of the modulus.
1481 [Sheueling Chang Shantz and Douglas Stebila
1482 (Sun Microsystems Laboratories)]
1484 *) New functions EC_GROUP_dup, EC_POINT_dup.
1485 (These simply call ..._new and ..._copy).
1487 [Sheueling Chang Shantz and Douglas Stebila
1488 (Sun Microsystems Laboratories)]
1490 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1491 Polynomials are represented as BIGNUMs (where the sign bit is not
1492 used) in the following functions [macros]:
1495 BN_GF2m_sub [= BN_GF2m_add]
1496 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1497 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1498 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1500 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1501 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1502 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1503 BN_GF2m_cmp [= BN_ucmp]
1505 (Note that only the 'mod' functions are actually for fields GF(2^m).
1506 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1508 For some functions, an the irreducible polynomial defining a
1509 field can be given as an 'unsigned int[]' with strictly
1510 decreasing elements giving the indices of those bits that are set;
1511 i.e., p[] represents the polynomial
1512 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1514 p[0] > p[1] > ... > p[k] = 0.
1515 This applies to the following functions:
1520 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1521 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1523 BN_GF2m_mod_sqrt_arr
1524 BN_GF2m_mod_solve_quad_arr
1528 Conversion can be performed by the following functions:
1533 bntest.c has additional tests for binary polynomial arithmetic.
1535 Two implementations for BN_GF2m_mod_div() are available.
1536 The default algorithm simply uses BN_GF2m_mod_inv() and
1537 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1538 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1539 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1541 [Sheueling Chang Shantz and Douglas Stebila
1542 (Sun Microsystems Laboratories)]
1544 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1545 functionality is disabled at compile-time.
1546 [Douglas Stebila <douglas.stebila@sun.com>]
1548 *) Change default behaviour of 'openssl asn1parse' so that more
1549 information is visible when viewing, e.g., a certificate:
1551 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1552 mode the content of non-printable OCTET STRINGs is output in a
1553 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1554 avoid the appearance of a printable string.
1555 [Nils Larsch <nla@trustcenter.de>]
1557 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1559 EC_GROUP_set_asn1_flag()
1560 EC_GROUP_get_asn1_flag()
1561 EC_GROUP_set_point_conversion_form()
1562 EC_GROUP_get_point_conversion_form()
1563 These control ASN1 encoding details:
1564 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1565 has been set to OPENSSL_EC_NAMED_CURVE.
1566 - Points are encoded in uncompressed form by default; options for
1567 asn1_for are as for point2oct, namely
1568 POINT_CONVERSION_COMPRESSED
1569 POINT_CONVERSION_UNCOMPRESSED
1570 POINT_CONVERSION_HYBRID
1572 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1575 EC_GROUP_get0_seed()
1576 EC_GROUP_get_seed_len()
1577 This is used only for ASN1 purposes (so far).
1578 [Nils Larsch <nla@trustcenter.de>]
1580 *) Add 'field_type' member to EC_METHOD, which holds the NID
1581 of the appropriate field type OID. The new function
1582 EC_METHOD_get_field_type() returns this value.
1583 [Nils Larsch <nla@trustcenter.de>]
1588 EC_POINT_point2hex()
1589 EC_POINT_hex2point()
1590 providing useful interfaces to EC_POINT_point2oct() and
1591 EC_POINT_oct2point().
1592 [Nils Larsch <nla@trustcenter.de>]
1594 *) Change internals of the EC library so that the functions
1595 EC_GROUP_set_generator()
1596 EC_GROUP_get_generator()
1597 EC_GROUP_get_order()
1598 EC_GROUP_get_cofactor()
1599 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1600 to methods, which would lead to unnecessary code duplication when
1601 adding different types of curves.
1602 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1604 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1605 arithmetic, and such that modified wNAFs are generated
1606 (which avoid length expansion in many cases).
1609 *) Add a function EC_GROUP_check_discriminant() (defined via
1610 EC_METHOD) that verifies that the curve discriminant is non-zero.
1612 Add a function EC_GROUP_check() that makes some sanity tests
1613 on a EC_GROUP, its generator and order. This includes
1614 EC_GROUP_check_discriminant().
1615 [Nils Larsch <nla@trustcenter.de>]
1617 *) Add ECDSA in new directory crypto/ecdsa/.
1619 Add applications 'openssl ecparam' and 'openssl ecdsa'
1620 (these are based on 'openssl dsaparam' and 'openssl dsa').
1622 ECDSA support is also included in various other files across the
1623 library. Most notably,
1624 - 'openssl req' now has a '-newkey ecdsa:file' option;
1625 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1626 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1627 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1628 them suitable for ECDSA where domain parameters must be
1629 extracted before the specific public key;
1630 - ECDSA engine support has been added.
1631 [Nils Larsch <nla@trustcenter.de>]
1633 *) Include some named elliptic curves, and add OIDs from X9.62,
1634 SECG, and WAP/WTLS. Each curve can be obtained from the new
1636 EC_GROUP_new_by_curve_name(),
1637 and the list of available named curves can be obtained with
1638 EC_get_builtin_curves().
1639 Also add a 'curve_name' member to EC_GROUP objects, which can be
1641 EC_GROUP_set_curve_name()
1642 EC_GROUP_get_curve_name()
1643 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1645 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1646 was actually never needed) and in BN_mul(). The removal in BN_mul()
1647 required a small change in bn_mul_part_recursive() and the addition
1648 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1649 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1650 bn_sub_words() and bn_add_words() except they take arrays with
1654 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1656 *) Cleanse PEM buffers before freeing them since they may contain
1658 [Benjamin Bennett <ben@psc.edu>]
1660 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1661 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1662 authentication-only ciphersuites.
1665 *) Since AES128 and AES256 share a single mask bit in the logic of
1666 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1667 kludge to work properly if AES128 is available and AES256 isn't.
1670 *) Expand security boundary to match 1.1.1 module.
1673 *) Remove redundant features: hash file source, editing of test vectors
1674 modify fipsld to use external fips_premain.c signature.
1677 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1678 run algorithm test programs.
1681 *) Make algorithm test programs more tolerant of whitespace.
1684 *) Have SSL/TLS server implementation tolerate "mismatched" record
1685 protocol version while receiving ClientHello even if the
1686 ClientHello is fragmented. (The server can't insist on the
1687 particular protocol version it has chosen before the ServerHello
1688 message has informed the client about his choice.)
1691 *) Load error codes if they are not already present instead of using a
1692 static variable. This allows them to be cleanly unloaded and reloaded.
1695 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1697 *) Introduce limits to prevent malicious keys being able to
1698 cause a denial of service. (CVE-2006-2940)
1699 [Steve Henson, Bodo Moeller]
1701 *) Fix ASN.1 parsing of certain invalid structures that can result
1702 in a denial of service. (CVE-2006-2937) [Steve Henson]
1704 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1705 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1707 *) Fix SSL client code which could crash if connecting to a
1708 malicious SSLv2 server. (CVE-2006-4343)
1709 [Tavis Ormandy and Will Drewry, Google Security Team]
1711 *) Change ciphersuite string processing so that an explicit
1712 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1713 will no longer include "AES128-SHA"), and any other similar
1714 ciphersuite (same bitmap) from *other* protocol versions (so that
1715 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1716 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1717 changes from 0.9.8b and 0.9.8d.
1720 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1722 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1723 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1725 *) Change the Unix randomness entropy gathering to use poll() when
1726 possible instead of select(), since the latter has some
1727 undesirable limitations.
1728 [Darryl Miles via Richard Levitte and Bodo Moeller]
1730 *) Disable rogue ciphersuites:
1732 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1733 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1734 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1736 The latter two were purportedly from
1737 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1740 Also deactive the remaining ciphersuites from
1741 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1742 unofficial, and the ID has long expired.
1745 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1746 dual-core machines) and other potential thread-safety issues.
1749 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1751 *) Adapt fipsld and the build system to link against the validated FIPS
1752 module in FIPS mode.
1755 *) Fixes for VC++ 2005 build under Windows.
1758 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1759 from a Windows bash shell such as MSYS. It is autodetected from the
1760 "config" script when run from a VC++ environment. Modify standard VC++
1761 build to use fipscanister.o from the GNU make build.
1764 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1766 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1767 The value now differs depending on if you build for FIPS or not.
1768 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1769 safely run with a non-FIPSed libcrypto, as it may crash because of
1770 the difference induced by this change.
1773 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1775 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1776 (part of SSL_OP_ALL). This option used to disable the
1777 countermeasure against man-in-the-middle protocol-version
1778 rollback in the SSL 2.0 server implementation, which is a bad
1779 idea. (CVE-2005-2969)
1781 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1782 for Information Security, National Institute of Advanced Industrial
1783 Science and Technology [AIST], Japan)]
1785 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1786 mainly for FIPS compliance and not fully integrated at this stage.
1789 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1790 the exponentiation using a fixed-length exponent. (Otherwise,
1791 the information leaked through timing could expose the secret key
1792 after many signatures; cf. Bleichenbacher's attack on DSA with
1796 *) Make a new fixed-window mod_exp implementation the default for
1797 RSA, DSA, and DH private-key operations so that the sequence of
1798 squares and multiplies and the memory access pattern are
1799 independent of the particular secret key. This will mitigate
1800 cache-timing and potential related attacks.
1802 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1803 and this is automatically used by BN_mod_exp_mont() if the new flag
1804 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1805 will use this BN flag for private exponents unless the flag
1806 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1807 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1809 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1811 *) Change the client implementation for SSLv23_method() and
1812 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1813 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1814 (Previously, the SSL 2.0 backwards compatible Client Hello
1815 message format would be used even with SSL_OP_NO_SSLv2.)
1818 *) Add support for smime-type MIME parameter in S/MIME messages which some
1822 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1823 a threadsafe manner. Modify rsa code to use new function and add calls
1824 to dsa and dh code (which had race conditions before).
1827 *) Include the fixed error library code in the C error file definitions
1828 instead of fixing them up at runtime. This keeps the error code
1829 structures constant.
1832 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1834 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1837 *) Fixes for newer kerberos headers. NB: the casts are needed because
1838 the 'length' field is signed on one version and unsigned on another
1839 with no (?) obvious way to tell the difference, without these VC++
1840 complains. Also the "definition" of FAR (blank) is no longer included
1841 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1842 some needed definitions.
1845 *) Undo Cygwin change.
1848 *) Added support for proxy certificates according to RFC 3820.
1849 Because they may be a security thread to unaware applications,
1850 they must be explicitely allowed in run-time. See
1851 docs/HOWTO/proxy_certificates.txt for further information.
1854 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1856 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1857 server and client random values. Previously
1858 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1859 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1861 This change has negligible security impact because:
1863 1. Server and client random values still have 24 bytes of pseudo random
1866 2. Server and client random values are sent in the clear in the initial
1869 3. The master secret is derived using the premaster secret (48 bytes in
1870 size for static RSA ciphersuites) as well as client server and random
1873 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1876 [Stephen Henson, reported by UK NISCC]
1878 *) Use Windows randomness collection on Cygwin.
1881 *) Fix hang in EGD/PRNGD query when communication socket is closed
1882 prematurely by EGD/PRNGD.
1883 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1885 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1888 *) Back-port of selected performance improvements from development
1889 branch, as well as improved support for PowerPC platforms.
1892 *) Add lots of checks for memory allocation failure, error codes to indicate
1893 failure and freeing up memory if a failure occurs.
1894 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1896 *) Add new -passin argument to dgst.
1899 *) Perform some character comparisons of different types in X509_NAME_cmp:
1900 this is needed for some certificates that reencode DNs into UTF8Strings
1901 (in violation of RFC3280) and can't or wont issue name rollover
1905 *) Make an explicit check during certificate validation to see that
1906 the CA setting in each certificate on the chain is correct. As a
1907 side effect always do the following basic checks on extensions,
1908 not just when there's an associated purpose to the check:
1910 - if there is an unhandled critical extension (unless the user
1911 has chosen to ignore this fault)
1912 - if the path length has been exceeded (if one is set at all)
1913 - that certain extensions fit the associated purpose (if one has
1917 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1919 *) Avoid a race condition when CRLs are checked in a multi threaded
1920 environment. This would happen due to the reordering of the revoked
1921 entries during signature checking and serial number lookup. Now the
1922 encoding is cached and the serial number sort performed under a lock.
1923 Add new STACK function sk_is_sorted().
1926 *) Add Delta CRL to the extension code.
1929 *) Various fixes to s3_pkt.c so alerts are sent properly.
1930 [David Holmes <d.holmes@f5.com>]
1932 *) Reduce the chances of duplicate issuer name and serial numbers (in
1933 violation of RFC3280) using the OpenSSL certificate creation utilities.
1934 This is done by creating a random 64 bit value for the initial serial
1935 number when a serial number file is created or when a self signed
1936 certificate is created using 'openssl req -x509'. The initial serial
1937 number file is created using 'openssl x509 -next_serial' in CA.pl
1938 rather than being initialized to 1.
1941 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1943 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1944 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1945 [Joe Orton, Steve Henson]
1947 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1949 [Joe Orton, Steve Henson]
1951 *) Make it possible to have multiple active certificates with the same
1952 subject in the CA index file. This is done only if the keyword
1953 'unique_subject' is set to 'no' in the main CA section (default
1954 if 'CA_default') of the configuration file. The value is saved
1955 with the database itself in a separate index attribute file,
1956 named like the index file with '.attr' appended to the name.
1959 *) X509 verify fixes. Disable broken certificate workarounds when
1960 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1961 keyUsage extension present. Don't accept CRLs with unhandled critical
1962 extensions: since verify currently doesn't process CRL extensions this
1963 rejects a CRL with *any* critical extensions. Add new verify error codes
1967 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1968 A clarification of RFC2560 will require the use of OCTET STRINGs and
1969 some implementations cannot handle the current raw format. Since OpenSSL
1970 copies and compares OCSP nonces as opaque blobs without any attempt at
1971 parsing them this should not create any compatibility issues.
1974 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1975 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1976 this HMAC (and other) operations are several times slower than OpenSSL
1980 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1981 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1983 *) Use the correct content when signing type "other".
1986 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1988 *) Fix various bugs revealed by running the NISCC test suite:
1990 Stop out of bounds reads in the ASN1 code when presented with
1991 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1993 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1995 If verify callback ignores invalid public key errors don't try to check
1996 certificate signature with the NULL public key.
2000 *) New -ignore_err option in ocsp application to stop the server
2001 exiting on the first error in a request.
2004 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2005 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2009 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2010 extra data after the compression methods not only for TLS 1.0
2011 but also for SSL 3.0 (as required by the specification).
2012 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2014 *) Change X509_certificate_type() to mark the key as exported/exportable
2015 when it's 512 *bits* long, not 512 bytes.
2018 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2019 blocks during encryption.
2022 *) Various fixes to base64 BIO and non blocking I/O. On write
2023 flushes were not handled properly if the BIO retried. On read
2024 data was not being buffered properly and had various logic bugs.
2025 This also affects blocking I/O when the data being decoded is a
2029 *) Various S/MIME bugfixes and compatibility changes:
2030 output correct application/pkcs7 MIME type if
2031 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2032 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2033 of files as .eml work). Correctly handle very long lines in MIME
2037 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2039 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2040 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2041 a protocol version number mismatch like a decryption error
2042 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2045 *) Turn on RSA blinding by default in the default implementation
2046 to avoid a timing attack. Applications that don't want it can call
2047 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2048 They would be ill-advised to do so in most cases.
2049 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2051 *) Change RSA blinding code so that it works when the PRNG is not
2052 seeded (in this case, the secret RSA exponent is abused as
2053 an unpredictable seed -- if it is not unpredictable, there
2054 is no point in blinding anyway). Make RSA blinding thread-safe
2055 by remembering the creator's thread ID in rsa->blinding and
2056 having all other threads use local one-time blinding factors
2057 (this requires more computation than sharing rsa->blinding, but
2058 avoids excessive locking; and if an RSA object is not shared
2059 between threads, blinding will still be very fast).
2062 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2063 ENGINE as defaults for all supported algorithms irrespective of
2064 the 'flags' parameter. 'flags' is now honoured, so applications
2065 should make sure they are passing it correctly.
2068 *) Target "mingw" now allows native Windows code to be generated in
2069 the Cygwin environment as well as with the MinGW compiler.
2072 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2074 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2075 via timing by performing a MAC computation even if incorrrect
2076 block cipher padding has been found. This is a countermeasure
2077 against active attacks where the attacker has to distinguish
2078 between bad padding and a MAC verification error. (CVE-2003-0078)
2080 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2081 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2082 Martin Vuagnoux (EPFL, Ilion)]
2084 *) Make the no-err option work as intended. The intention with no-err
2085 is not to have the whole error stack handling routines removed from
2086 libcrypto, it's only intended to remove all the function name and
2087 reason texts, thereby removing some of the footprint that may not
2088 be interesting if those errors aren't displayed anyway.
2090 NOTE: it's still possible for any application or module to have it's
2091 own set of error texts inserted. The routines are there, just not
2092 used by default when no-err is given.
2095 *) Add support for FreeBSD on IA64.
2096 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2098 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2099 Kerberos function mit_des_cbc_cksum(). Before this change,
2100 the value returned by DES_cbc_cksum() was like the one from
2101 mit_des_cbc_cksum(), except the bytes were swapped.
2102 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2104 *) Allow an application to disable the automatic SSL chain building.
2105 Before this a rather primitive chain build was always performed in
2106 ssl3_output_cert_chain(): an application had no way to send the
2107 correct chain if the automatic operation produced an incorrect result.
2109 Now the chain builder is disabled if either:
2111 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2113 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2115 The reasoning behind this is that an application would not want the
2116 auto chain building to take place if extra chain certificates are
2117 present and it might also want a means of sending no additional
2118 certificates (for example the chain has two certificates and the
2122 *) Add the possibility to build without the ENGINE framework.
2123 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2125 *) Under Win32 gmtime() can return NULL: check return value in
2126 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2129 *) DSA routines: under certain error conditions uninitialized BN objects
2130 could be freed. Solution: make sure initialization is performed early
2131 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2132 Nils Larsch <nla@trustcenter.de> via PR#459)
2135 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2136 checked on reconnect on the client side, therefore session resumption
2137 could still fail with a "ssl session id is different" error. This
2138 behaviour is masked when SSL_OP_ALL is used due to
2139 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2140 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2141 followup to PR #377.
2144 *) IA-32 assembler support enhancements: unified ELF targets, support
2145 for SCO/Caldera platforms, fix for Cygwin shared build.
2148 *) Add support for FreeBSD on sparc64. As a consequence, support for
2149 FreeBSD on non-x86 processors is separate from x86 processors on
2150 the config script, much like the NetBSD support.
2151 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2153 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2155 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2158 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2159 code (06) was taken as the first octet of the session ID and the last
2160 octet was ignored consequently. As a result SSLv2 client side session
2161 caching could not have worked due to the session ID mismatch between
2163 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2167 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2168 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2172 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2173 seems that in spite of existing for more than a year, many application
2174 author have done nothing to provide the necessary callbacks, which
2175 means that this particular engine will not work properly anywhere.
2176 This is a very unfortunate situation which forces us, in the name
2177 of usability, to give the hw_ncipher.c a static lock, which is part
2179 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2180 appear in 0.9.8 or later. We EXPECT application authors to have
2181 dealt properly with this when 0.9.8 is released (unless we actually
2182 make such changes in the libcrypto locking code that changes will
2183 have to be made anyway).
2186 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2187 octets have been read, EOF or an error occurs. Without this change
2188 some truncated ASN1 structures will not produce an error.
2191 *) Disable Heimdal support, since it hasn't been fully implemented.
2192 Still give the possibility to force the use of Heimdal, but with
2193 warnings and a request that patches get sent to openssl-dev.
2196 *) Add the VC-CE target, introduce the WINCE sysname, and add
2197 INSTALL.WCE and appropriate conditionals to make it build.
2198 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2200 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2201 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2202 edit numbers of the version.
2203 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2205 *) Introduce safe string copy and catenation functions
2206 (BUF_strlcpy() and BUF_strlcat()).
2207 [Ben Laurie (CHATS) and Richard Levitte]
2209 *) Avoid using fixed-size buffers for one-line DNs.
2210 [Ben Laurie (CHATS)]
2212 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2213 resizing buffers containing secrets, and use where appropriate.
2214 [Ben Laurie (CHATS)]
2216 *) Avoid using fixed size buffers for configuration file location.
2217 [Ben Laurie (CHATS)]
2219 *) Avoid filename truncation for various CA files.
2220 [Ben Laurie (CHATS)]
2222 *) Use sizeof in preference to magic numbers.
2223 [Ben Laurie (CHATS)]
2225 *) Avoid filename truncation in cert requests.
2226 [Ben Laurie (CHATS)]
2228 *) Add assertions to check for (supposedly impossible) buffer
2230 [Ben Laurie (CHATS)]
2232 *) Don't cache truncated DNS entries in the local cache (this could
2233 potentially lead to a spoofing attack).
2234 [Ben Laurie (CHATS)]
2236 *) Fix various buffers to be large enough for hex/decimal
2237 representations in a platform independent manner.
2238 [Ben Laurie (CHATS)]
2240 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2241 resizing buffers containing secrets, and use where appropriate.
2242 [Ben Laurie (CHATS)]
2244 *) Add BIO_indent() to avoid much slightly worrying code to do
2246 [Ben Laurie (CHATS)]
2248 *) Convert sprintf()/BIO_puts() to BIO_printf().
2249 [Ben Laurie (CHATS)]
2251 *) buffer_gets() could terminate with the buffer only half
2253 [Ben Laurie (CHATS)]
2255 *) Add assertions to prevent user-supplied crypto functions from
2256 overflowing internal buffers by having large block sizes, etc.
2257 [Ben Laurie (CHATS)]
2259 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2261 [Ben Laurie (CHATS)]
2263 *) Eliminate unused copy of key in RC4.
2264 [Ben Laurie (CHATS)]
2266 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2267 [Ben Laurie (CHATS)]
2269 *) Fix off-by-one error in EGD path.
2270 [Ben Laurie (CHATS)]
2272 *) If RANDFILE path is too long, ignore instead of truncating.
2273 [Ben Laurie (CHATS)]
2275 *) Eliminate unused and incorrectly sized X.509 structure
2277 [Ben Laurie (CHATS)]
2279 *) Eliminate unused and dangerous function knumber().
2280 [Ben Laurie (CHATS)]
2282 *) Eliminate unused and dangerous structure, KSSL_ERR.
2283 [Ben Laurie (CHATS)]
2285 *) Protect against overlong session ID context length in an encoded
2286 session object. Since these are local, this does not appear to be
2288 [Ben Laurie (CHATS)]
2290 *) Change from security patch (see 0.9.6e below) that did not affect
2291 the 0.9.6 release series:
2293 Remote buffer overflow in SSL3 protocol - an attacker could
2294 supply an oversized master key in Kerberos-enabled versions.
2296 [Ben Laurie (CHATS)]
2298 *) Change the SSL kerb5 codes to match RFC 2712.
2301 *) Make -nameopt work fully for req and add -reqopt switch.
2302 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2304 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2305 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2307 *) Make sure tests can be performed even if the corresponding algorithms
2308 have been removed entirely. This was also the last step to make
2309 OpenSSL compilable with DJGPP under all reasonable conditions.
2310 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2312 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2313 to allow version independent disabling of normally unselected ciphers,
2314 which may be activated as a side-effect of selecting a single cipher.
2316 (E.g., cipher list string "RSA" enables ciphersuites that are left
2317 out of "ALL" because they do not provide symmetric encryption.
2318 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2319 [Lutz Jaenicke, Bodo Moeller]
2321 *) Add appropriate support for separate platform-dependent build
2322 directories. The recommended way to make a platform-dependent
2323 build directory is the following (tested on Linux), maybe with
2326 # Place yourself outside of the OpenSSL source tree. In
2327 # this example, the environment variable OPENSSL_SOURCE
2328 # is assumed to contain the absolute OpenSSL source directory.
2329 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2330 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2331 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2332 mkdir -p `dirname $F`
2333 ln -s $OPENSSL_SOURCE/$F $F
2336 To be absolutely sure not to disturb the source tree, a "make clean"
2337 is a good thing. If it isn't successfull, don't worry about it,
2338 it probably means the source directory is very clean.
2341 *) Make sure any ENGINE control commands make local copies of string
2342 pointers passed to them whenever necessary. Otherwise it is possible
2343 the caller may have overwritten (or deallocated) the original string
2344 data when a later ENGINE operation tries to use the stored values.
2345 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2347 *) Improve diagnostics in file reading and command-line digests.
2348 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2350 *) Add AES modes CFB and OFB to the object database. Correct an
2351 error in AES-CFB decryption.
2354 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2355 allows existing EVP_CIPHER_CTX structures to be reused after
2356 calling EVP_*Final(). This behaviour is used by encryption
2357 BIOs and some applications. This has the side effect that
2358 applications must explicitly clean up cipher contexts with
2359 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2362 *) Check the values of dna and dnb in bn_mul_recursive before calling
2363 bn_mul_comba (a non zero value means the a or b arrays do not contain
2364 n2 elements) and fallback to bn_mul_normal if either is not zero.
2367 *) Fix escaping of non-ASCII characters when using the -subj option
2368 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2371 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2372 form for "surname", serialNumber has no short form.
2373 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2374 therefore remove "mail" short name for "internet 7".
2375 The OID for unique identifiers in X509 certificates is
2376 x500UniqueIdentifier, not uniqueIdentifier.
2377 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2380 *) Add an "init" command to the ENGINE config module and auto initialize
2381 ENGINEs. Without any "init" command the ENGINE will be initialized
2382 after all ctrl commands have been executed on it. If init=1 the
2383 ENGINE is initailized at that point (ctrls before that point are run
2384 on the uninitialized ENGINE and after on the initialized one). If
2385 init=0 then the ENGINE will not be iniatialized at all.
2388 *) Fix the 'app_verify_callback' interface so that the user-defined
2389 argument is actually passed to the callback: In the
2390 SSL_CTX_set_cert_verify_callback() prototype, the callback
2391 declaration has been changed from
2394 int (*cb)(X509_STORE_CTX *,void *);
2395 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2396 i=s->ctx->app_verify_callback(&ctx)
2397 has been changed into
2398 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2400 To update applications using SSL_CTX_set_cert_verify_callback(),
2401 a dummy argument can be added to their callback functions.
2402 [D. K. Smetters <smetters@parc.xerox.com>]
2404 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2405 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2407 *) Add and OPENSSL_LOAD_CONF define which will cause
2408 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2409 This allows older applications to transparently support certain
2410 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2411 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2412 load the config file and OPENSSL_add_all_algorithms_conf() which will
2413 always load it have also been added.
2416 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2417 Adjust NIDs and EVP layer.
2418 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2420 *) Config modules support in openssl utility.
2422 Most commands now load modules from the config file,
2423 though in a few (such as version) this isn't done
2424 because it couldn't be used for anything.
2426 In the case of ca and req the config file used is
2427 the same as the utility itself: that is the -config
2428 command line option can be used to specify an
2432 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2433 use "openssl_conf" if filename is NULL use default openssl config file.
2436 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2437 config section name. Add a new flag to tolerate a missing config file
2438 and move code to CONF_modules_load_file().
2441 *) Support for crypto accelerator cards from Accelerated Encryption
2442 Processing, www.aep.ie. (Use engine 'aep')
2443 The support was copied from 0.9.6c [engine] and adapted/corrected
2444 to work with the new engine framework.
2445 [AEP Inc. and Richard Levitte]
2447 *) Support for SureWare crypto accelerator cards from Baltimore
2448 Technologies. (Use engine 'sureware')
2449 The support was copied from 0.9.6c [engine] and adapted
2450 to work with the new engine framework.
2453 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2454 make the newer ENGINE framework commands for the CHIL engine work.
2455 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2457 *) Make it possible to produce shared libraries on ReliantUNIX.
2458 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2460 *) Add the configuration target debug-linux-ppro.
2461 Make 'openssl rsa' use the general key loading routines
2462 implemented in apps.c, and make those routines able to
2463 handle the key format FORMAT_NETSCAPE and the variant
2465 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2467 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2468 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2470 *) Add -keyform to rsautl, and document -engine.
2471 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2473 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2474 BIO_R_NO_SUCH_FILE error code rather than the generic
2475 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2478 *) Add new functions
2480 ERR_peek_last_error_line
2481 ERR_peek_last_error_line_data.
2482 These are similar to
2485 ERR_peek_error_line_data,
2486 but report on the latest error recorded rather than the first one
2487 still in the error queue.
2488 [Ben Laurie, Bodo Moeller]
2490 *) default_algorithms option in ENGINE config module. This allows things
2492 default_algorithms = ALL
2493 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2496 *) Prelminary ENGINE config module.
2499 *) New experimental application configuration code.
2502 *) Change the AES code to follow the same name structure as all other
2503 symmetric ciphers, and behave the same way. Move everything to
2504 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2505 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2507 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2508 [Ben Laurie and Theo de Raadt]
2510 *) Add option to output public keys in req command.
2511 [Massimiliano Pala madwolf@openca.org]
2513 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2514 (up to about 10% better than before for P-192 and P-224).
2517 *) New functions/macros
2519 SSL_CTX_set_msg_callback(ctx, cb)
2520 SSL_CTX_set_msg_callback_arg(ctx, arg)
2521 SSL_set_msg_callback(ssl, cb)
2522 SSL_set_msg_callback_arg(ssl, arg)
2524 to request calling a callback function
2526 void cb(int write_p, int version, int content_type,
2527 const void *buf, size_t len, SSL *ssl, void *arg)
2529 whenever a protocol message has been completely received
2530 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2531 protocol version according to which the SSL library interprets
2532 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2533 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2534 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2535 specification (change_cipher_spec(20), alert(21), handshake(22)).
2536 'buf' and 'len' point to the actual message, 'ssl' to the
2537 SSL object, and 'arg' is the application-defined value set by
2538 SSL[_CTX]_set_msg_callback_arg().
2540 'openssl s_client' and 'openssl s_server' have new '-msg' options
2541 to enable a callback that displays all protocol messages.
2544 *) Change the shared library support so shared libraries are built as
2545 soon as the corresponding static library is finished, and thereby get
2546 openssl and the test programs linked against the shared library.
2547 This still only happens when the keyword "shard" has been given to
2548 the configuration scripts.
2550 NOTE: shared library support is still an experimental thing, and
2551 backward binary compatibility is still not guaranteed.
2552 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2554 *) Add support for Subject Information Access extension.
2555 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2557 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2558 additional bytes when new memory had to be allocated, not just
2559 when reusing an existing buffer.
2562 *) New command line and configuration option 'utf8' for the req command.
2563 This allows field values to be specified as UTF8 strings.
2566 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2567 runs for the former and machine-readable output for the latter.
2570 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2571 of the e-mail address in the DN (i.e., it will go into a certificate
2572 extension only). The new configuration file option 'email_in_dn = no'
2573 has the same effect.
2574 [Massimiliano Pala madwolf@openca.org]
2576 *) Change all functions with names starting with des_ to be starting
2577 with DES_ instead. Add wrappers that are compatible with libdes,
2578 but are named _ossl_old_des_*. Finally, add macros that map the
2579 des_* symbols to the corresponding _ossl_old_des_* if libdes
2580 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2581 desired, the des_* symbols will be mapped to DES_*, with one
2584 Since we provide two compatibility mappings, the user needs to
2585 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2586 compatibility is desired. The default (i.e., when that macro
2587 isn't defined) is OpenSSL 0.9.6c compatibility.
2589 There are also macros that enable and disable the support of old
2590 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2591 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2592 are defined, the default will apply: to support the old des routines.
2594 In either case, one must include openssl/des.h to get the correct
2595 definitions. Do not try to just include openssl/des_old.h, that
2598 NOTE: This is a major break of an old API into a new one. Software
2599 authors are encouraged to switch to the DES_ style functions. Some
2600 time in the future, des_old.h and the libdes compatibility functions
2601 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2602 default), and then completely removed.
2605 *) Test for certificates which contain unsupported critical extensions.
2606 If such a certificate is found during a verify operation it is
2607 rejected by default: this behaviour can be overridden by either
2608 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2609 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2610 X509_supported_extension() has also been added which returns 1 if a
2611 particular extension is supported.
2614 *) Modify the behaviour of EVP cipher functions in similar way to digests
2615 to retain compatibility with existing code.
2618 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2619 compatibility with existing code. In particular the 'ctx' parameter does
2620 not have to be to be initialized before the call to EVP_DigestInit() and
2621 it is tidied up after a call to EVP_DigestFinal(). New function
2622 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2623 EVP_MD_CTX_copy() changed to not require the destination to be
2624 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2625 requires the destination to be valid.
2627 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2628 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2631 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2632 so that complete 'Handshake' protocol structures are kept in memory
2633 instead of overwriting 'msg_type' and 'length' with 'body' data.
2636 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2637 [Massimo Santin via Richard Levitte]
2639 *) Major restructuring to the underlying ENGINE code. This includes
2640 reduction of linker bloat, separation of pure "ENGINE" manipulation
2641 (initialisation, etc) from functionality dealing with implementations
2642 of specific crypto iterfaces. This change also introduces integrated
2643 support for symmetric ciphers and digest implementations - so ENGINEs
2644 can now accelerate these by providing EVP_CIPHER and EVP_MD
2645 implementations of their own. This is detailed in crypto/engine/README
2646 as it couldn't be adequately described here. However, there are a few
2647 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2648 were changed in the original introduction of ENGINE code have now
2649 reverted back - the hooking from this code to ENGINE is now a good
2650 deal more passive and at run-time, operations deal directly with
2651 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2652 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2653 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2654 they were not being used by the framework as there is no concept of a
2655 BIGNUM_METHOD and they could not be generalised to the new
2656 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2657 ENGINE_cpy() has been removed as it cannot be consistently defined in
2661 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2664 *) Change mkdef.pl to sort symbols that get the same entry number,
2665 and make sure the automatically generated functions ERR_load_*
2666 become part of libeay.num as well.
2669 *) New function SSL_renegotiate_pending(). This returns true once
2670 renegotiation has been requested (either SSL_renegotiate() call
2671 or HelloRequest/ClientHello receveived from the peer) and becomes
2672 false once a handshake has been completed.
2673 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2674 sends a HelloRequest, but does not ensure that a handshake takes
2675 place. SSL_renegotiate_pending() is useful for checking if the
2676 client has followed the request.)
2679 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2680 By default, clients may request session resumption even during
2681 renegotiation (if session ID contexts permit); with this option,
2682 session resumption is possible only in the first handshake.
2684 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2685 more bits available for options that should not be part of
2686 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2689 *) Add some demos for certificate and certificate request creation.
2692 *) Make maximum certificate chain size accepted from the peer application
2693 settable (SSL*_get/set_max_cert_list()), as proposed by
2694 "Douglas E. Engert" <deengert@anl.gov>.
2697 *) Add support for shared libraries for Unixware-7
2698 (Boyd Lynn Gerber <gerberb@zenez.com>).
2701 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2702 be done prior to destruction. Use this to unload error strings from
2703 ENGINEs that load their own error strings. NB: This adds two new API
2704 functions to "get" and "set" this destroy handler in an ENGINE.
2707 *) Alter all existing ENGINE implementations (except "openssl" and
2708 "openbsd") to dynamically instantiate their own error strings. This
2709 makes them more flexible to be built both as statically-linked ENGINEs
2710 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2711 Also, add stub code to each that makes building them as self-contained
2712 shared-libraries easier (see README.ENGINE).
2715 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2716 implementations into applications that are completely implemented in
2717 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2718 commands that can be used to configure what shared-library to load and
2719 to control aspects of the way it is handled. Also, made an update to
2720 the README.ENGINE file that brings its information up-to-date and
2721 provides some information and instructions on the "dynamic" ENGINE
2722 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2725 *) Make it possible to unload ranges of ERR strings with a new
2726 "ERR_unload_strings" function.
2729 *) Add a copy() function to EVP_MD.
2732 *) Make EVP_MD routines take a context pointer instead of just the
2733 md_data void pointer.
2736 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2737 that the digest can only process a single chunk of data
2738 (typically because it is provided by a piece of
2739 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2740 is only going to provide a single chunk of data, and hence the
2741 framework needn't accumulate the data for oneshot drivers.
2744 *) As with "ERR", make it possible to replace the underlying "ex_data"
2745 functions. This change also alters the storage and management of global
2746 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2747 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2748 index counters. The API functions that use this state have been changed
2749 to take a "class_index" rather than pointers to the class's local STACK
2750 and counter, and there is now an API function to dynamically create new
2751 classes. This centralisation allows us to (a) plug a lot of the
2752 thread-safety problems that existed, and (b) makes it possible to clean
2753 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2754 such data would previously have always leaked in application code and
2755 workarounds were in place to make the memory debugging turn a blind eye
2756 to it. Application code that doesn't use this new function will still
2757 leak as before, but their memory debugging output will announce it now
2758 rather than letting it slide.
2760 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2761 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2762 has a return value to indicate success or failure.
2765 *) Make it possible to replace the underlying "ERR" functions such that the
2766 global state (2 LHASH tables and 2 locks) is only used by the "default"
2767 implementation. This change also adds two functions to "get" and "set"
2768 the implementation prior to it being automatically set the first time
2769 any other ERR function takes place. Ie. an application can call "get",
2770 pass the return value to a module it has just loaded, and that module
2771 can call its own "set" function using that value. This means the
2772 module's "ERR" operations will use (and modify) the error state in the
2773 application and not in its own statically linked copy of OpenSSL code.
2776 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2777 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2778 the operation, and provides a more encapsulated way for external code
2779 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2780 to use these functions rather than manually incrementing the counts.
2782 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2785 *) Add EVP test program.
2788 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2791 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2792 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2793 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2794 These allow a CRL to be built without having to access X509_CRL fields
2795 directly. Modify 'ca' application to use new functions.
2798 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2799 bug workarounds. Rollback attack detection is a security feature.
2800 The problem will only arise on OpenSSL servers when TLSv1 is not
2801 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2802 Software authors not wanting to support TLSv1 will have special reasons
2803 for their choice and can explicitly enable this option.
2804 [Bodo Moeller, Lutz Jaenicke]
2806 *) Rationalise EVP so it can be extended: don't include a union of
2807 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2808 (similar to those existing for EVP_CIPHER_CTX).
2813 EVP_MD_CTX_init(&md); /* new function call */
2814 EVP_DigestInit(&md, EVP_sha1());
2815 EVP_DigestUpdate(&md, in, len);
2816 EVP_DigestFinal(&md, out, NULL);
2817 EVP_MD_CTX_cleanup(&md); /* new function call */
2821 *) Make DES key schedule conform to the usual scheme, as well as
2822 correcting its structure. This means that calls to DES functions
2823 now have to pass a pointer to a des_key_schedule instead of a
2824 plain des_key_schedule (which was actually always a pointer
2827 des_key_schedule ks;
2829 des_set_key_checked(..., &ks);
2830 des_ncbc_encrypt(..., &ks, ...);
2832 (Note that a later change renames 'des_...' into 'DES_...'.)
2835 *) Initial reduction of linker bloat: the use of some functions, such as
2836 PEM causes large amounts of unused functions to be linked in due to
2837 poor organisation. For example pem_all.c contains every PEM function
2838 which has a knock on effect of linking in large amounts of (unused)
2839 ASN1 code. Grouping together similar functions and splitting unrelated
2840 functions prevents this.
2843 *) Cleanup of EVP macros.
2846 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2847 correct _ecb suffix.
2850 *) Add initial OCSP responder support to ocsp application. The
2851 revocation information is handled using the text based index
2852 use by the ca application. The responder can either handle
2853 requests generated internally, supplied in files (for example
2854 via a CGI script) or using an internal minimal server.
2857 *) Add configuration choices to get zlib compression for TLS.
2860 *) Changes to Kerberos SSL for RFC 2712 compliance:
2861 1. Implemented real KerberosWrapper, instead of just using
2862 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2863 2. Implemented optional authenticator field of KerberosWrapper.
2865 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2866 and authenticator structs; see crypto/krb5/.
2868 Generalized Kerberos calls to support multiple Kerberos libraries.
2869 [Vern Staats <staatsvr@asc.hpc.mil>,
2870 Jeffrey Altman <jaltman@columbia.edu>
2871 via Richard Levitte]
2873 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2874 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2875 values for each of the key sizes rather than having just
2876 parameters (and 'speed' generating keys each time).
2879 *) Speed up EVP routines.
2882 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2883 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2884 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2885 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2887 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2888 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2889 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2892 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2894 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2897 *) Added the OS2-EMX target.
2898 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2900 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2901 to support NCONF routines in extension code. New function CONF_set_nconf()
2902 to allow functions which take an NCONF to also handle the old LHASH
2903 structure: this means that the old CONF compatible routines can be
2904 retained (in particular wrt extensions) without having to duplicate the
2905 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2908 *) Enhance the general user interface with mechanisms for inner control
2909 and with possibilities to have yes/no kind of prompts.
2912 *) Change all calls to low level digest routines in the library and
2913 applications to use EVP. Add missing calls to HMAC_cleanup() and
2914 don't assume HMAC_CTX can be copied using memcpy().
2915 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2917 *) Add the possibility to control engines through control names but with
2918 arbitrary arguments instead of just a string.
2919 Change the key loaders to take a UI_METHOD instead of a callback
2920 function pointer. NOTE: this breaks binary compatibility with earlier
2921 versions of OpenSSL [engine].
2922 Adapt the nCipher code for these new conditions and add a card insertion
2926 *) Enhance the general user interface with mechanisms to better support
2927 dialog box interfaces, application-defined prompts, the possibility
2928 to use defaults (for example default passwords from somewhere else)
2929 and interrupts/cancellations.
2932 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2933 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2936 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2937 tidy up some unnecessarily weird code in 'sk_new()').
2938 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2940 *) Change the key loading routines for ENGINEs to use the same kind
2941 callback (pem_password_cb) as all other routines that need this
2945 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2946 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2947 than this minimum value is recommended.
2950 *) New random seeder for OpenVMS, using the system process statistics
2951 that are easily reachable.
2954 *) Windows apparently can't transparently handle global
2955 variables defined in DLLs. Initialisations such as:
2957 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2959 wont compile. This is used by the any applications that need to
2960 declare their own ASN1 modules. This was fixed by adding the option
2961 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2962 needed for static libraries under Win32.
2965 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2966 setting of purpose and trust fields. New X509_STORE trust and
2967 purpose functions and tidy up setting in other SSL functions.
2970 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2971 structure. These are inherited by X509_STORE_CTX when it is
2972 initialised. This allows various defaults to be set in the
2973 X509_STORE structure (such as flags for CRL checking and custom
2974 purpose or trust settings) for functions which only use X509_STORE_CTX
2975 internally such as S/MIME.
2977 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2978 trust settings if they are not set in X509_STORE. This allows X509_STORE
2979 purposes and trust (in S/MIME for example) to override any set by default.
2981 Add command line options for CRL checking to smime, s_client and s_server
2985 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2986 are set then the CRL is looked up in the X509_STORE structure and
2987 its validity and signature checked, then if the certificate is found
2988 in the CRL the verify fails with a revoked error.
2990 Various new CRL related callbacks added to X509_STORE_CTX structure.
2992 Command line options added to 'verify' application to support this.
2994 This needs some additional work, such as being able to handle multiple
2995 CRLs with different times, extension based lookup (rather than just
2996 by subject name) and ultimately more complete V2 CRL extension
3000 *) Add a general user interface API (crypto/ui/). This is designed
3001 to replace things like des_read_password and friends (backward
3002 compatibility functions using this new API are provided).
3003 The purpose is to remove prompting functions from the DES code
3004 section as well as provide for prompting through dialog boxes in
3005 a window system and the like.
3008 *) Add "ex_data" support to ENGINE so implementations can add state at a
3009 per-structure level rather than having to store it globally.
3012 *) Make it possible for ENGINE structures to be copied when retrieved by
3013 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3014 This causes the "original" ENGINE structure to act like a template,
3015 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3016 operational state can be localised to each ENGINE structure, despite the
3017 fact they all share the same "methods". New ENGINE structures returned in
3018 this case have no functional references and the return value is the single
3019 structural reference. This matches the single structural reference returned
3020 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3024 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3025 needs to match any other type at all we need to manually clear the
3029 *) Changes to the "openssl engine" utility to include;
3030 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3031 about an ENGINE's available control commands.
3032 - executing control commands from command line arguments using the
3033 '-pre' and '-post' switches. '-post' is only used if '-t' is
3034 specified and the ENGINE is successfully initialised. The syntax for
3035 the individual commands are colon-separated, for example;
3036 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3039 *) New dynamic control command support for ENGINEs. ENGINEs can now
3040 declare their own commands (numbers), names (strings), descriptions,
3041 and input types for run-time discovery by calling applications. A
3042 subset of these commands are implicitly classed as "executable"
3043 depending on their input type, and only these can be invoked through
3044 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3045 can be based on user input, config files, etc). The distinction is
3046 that "executable" commands cannot return anything other than a boolean
3047 result and can only support numeric or string input, whereas some
3048 discoverable commands may only be for direct use through
3049 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3050 pointers, or other custom uses. The "executable" commands are to
3051 support parameterisations of ENGINE behaviour that can be
3052 unambiguously defined by ENGINEs and used consistently across any
3053 OpenSSL-based application. Commands have been added to all the
3054 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3055 control over shared-library paths without source code alterations.
3058 *) Changed all ENGINE implementations to dynamically allocate their
3059 ENGINEs rather than declaring them statically. Apart from this being
3060 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3061 this also allows the implementations to compile without using the
3062 internal engine_int.h header.
3065 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3066 'const' value. Any code that should be able to modify a RAND_METHOD
3067 should already have non-const pointers to it (ie. they should only
3068 modify their own ones).
3071 *) Made a variety of little tweaks to the ENGINE code.
3072 - "atalla" and "ubsec" string definitions were moved from header files
3073 to C code. "nuron" string definitions were placed in variables
3074 rather than hard-coded - allowing parameterisation of these values
3075 later on via ctrl() commands.
3076 - Removed unused "#if 0"'d code.
3077 - Fixed engine list iteration code so it uses ENGINE_free() to release
3078 structural references.
3079 - Constified the RAND_METHOD element of ENGINE structures.
3080 - Constified various get/set functions as appropriate and added
3081 missing functions (including a catch-all ENGINE_cpy that duplicates
3082 all ENGINE values onto a new ENGINE except reference counts/state).
3083 - Removed NULL parameter checks in get/set functions. Setting a method
3084 or function to NULL is a way of cancelling out a previously set
3085 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3086 and doesn't justify the extra error symbols and code.
3087 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3088 flags from engine_int.h to engine.h.
3089 - Changed prototypes for ENGINE handler functions (init(), finish(),
3090 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3093 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3094 to the algorithm using long division. The binary algorithm can be
3095 used only if the modulus is odd. On 32-bit systems, it is faster
3096 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3097 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3098 up to 450 bits. In 64-bit environments, the binary algorithm
3099 appears to be advantageous for much longer moduli; here we use it
3100 for moduli up to 2048 bits.
3103 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3104 could not support the combine flag in choice fields.
3107 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3108 extensions from a certificate request to the certificate.
3111 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3112 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3113 file: this allows the display of the certificate about to be
3114 signed to be customised, to allow certain fields to be included
3115 or excluded and extension details. The old system didn't display
3116 multicharacter strings properly, omitted fields not in the policy
3117 and couldn't display additional details such as extensions.
3120 *) Function EC_POINTs_mul for multiple scalar multiplication
3121 of an arbitrary number of elliptic curve points
3122 \sum scalars[i]*points[i],
3123 optionally including the generator defined for the EC_GROUP:
3124 scalar*generator + \sum scalars[i]*points[i].
3126 EC_POINT_mul is a simple wrapper function for the typical case
3127 that the point list has just one item (besides the optional
3131 *) First EC_METHODs for curves over GF(p):
3133 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3134 operations and provides various method functions that can also
3135 operate with faster implementations of modular arithmetic.
3137 EC_GFp_mont_method() reuses most functions that are part of
3138 EC_GFp_simple_method, but uses Montgomery arithmetic.
3140 [Bodo Moeller; point addition and point doubling
3141 implementation directly derived from source code provided by
3142 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3144 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3145 crypto/ec/ec_lib.c):
3147 Curves are EC_GROUP objects (with an optional group generator)
3148 based on EC_METHODs that are built into the library.
3150 Points are EC_POINT objects based on EC_GROUP objects.
3152 Most of the framework would be able to handle curves over arbitrary
3153 finite fields, but as there are no obvious types for fields other
3154 than GF(p), some functions are limited to that for now.
3157 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3158 that the file contains a complete HTTP response.
3161 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3162 change the def and num file printf format specifier from "%-40sXXX"
3163 to "%-39s XXX". The latter will always guarantee a space after the
3164 field while the former will cause them to run together if the field
3165 is 40 of more characters long.
3168 *) Constify the cipher and digest 'method' functions and structures
3169 and modify related functions to take constant EVP_MD and EVP_CIPHER
3173 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3174 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3177 *) Modify EVP_Digest*() routines so they now return values. Although the
3178 internal software routines can never fail additional hardware versions
3182 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3184 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3185 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3188 ERR_R_NESTED_ASN1_ERROR
3190 ERR_R_MISSING_ASN1_EOS
3191 were 4 .. 9, conflicting with
3192 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3194 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3195 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3197 Add new error code 'ERR_R_INTERNAL_ERROR'.
3200 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3204 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3205 sets the subject name for a new request or supersedes the
3206 subject name in a given request. Formats that can be parsed are
3207 'CN=Some Name, OU=myOU, C=IT'
3209 'CN=Some Name/OU=myOU/C=IT'.
3211 Add options '-batch' and '-verbose' to 'openssl req'.
3212 [Massimiliano Pala <madwolf@hackmasters.net>]
3214 *) Introduce the possibility to access global variables through
3215 functions on platform were that's the best way to handle exporting
3216 global variables in shared libraries. To enable this functionality,
3217 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3218 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3219 is normally done by Configure or something similar).
3221 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3222 in the source file (foo.c) like this:
3224 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3225 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3227 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3228 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3230 OPENSSL_DECLARE_GLOBAL(int,foo);
3231 #define foo OPENSSL_GLOBAL_REF(foo)
3232 OPENSSL_DECLARE_GLOBAL(double,bar);
3233 #define bar OPENSSL_GLOBAL_REF(bar)
3235 The #defines are very important, and therefore so is including the
3236 header file everywhere where the defined globals are used.
3238 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3239 of ASN.1 items, but that structure is a bit different.
3241 The largest change is in util/mkdef.pl which has been enhanced with
3242 better and easier to understand logic to choose which symbols should
3243 go into the Windows .def files as well as a number of fixes and code
3244 cleanup (among others, algorithm keywords are now sorted
3245 lexicographically to avoid constant rewrites).
3248 *) In BN_div() keep a copy of the sign of 'num' before writing the
3249 result to 'rm' because if rm==num the value will be overwritten
3250 and produce the wrong result if 'num' is negative: this caused
3251 problems with BN_mod() and BN_nnmod().
3254 *) Function OCSP_request_verify(). This checks the signature on an
3255 OCSP request and verifies the signer certificate. The signer
3256 certificate is just checked for a generic purpose and OCSP request
3260 *) Add OCSP_check_validity() function to check the validity of OCSP
3261 responses. OCSP responses are prepared in real time and may only
3262 be a few seconds old. Simply checking that the current time lies
3263 between thisUpdate and nextUpdate max reject otherwise valid responses
3264 caused by either OCSP responder or client clock inaccuracy. Instead
3265 we allow thisUpdate and nextUpdate to fall within a certain period of
3266 the current time. The age of the response can also optionally be
3267 checked. Two new options -validity_period and -status_age added to
3271 *) If signature or public key algorithm is unrecognized print out its
3272 OID rather that just UNKNOWN.
3275 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3276 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3277 ID to be generated from the issuer certificate alone which can then be
3278 passed to OCSP_id_issuer_cmp().
3281 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3282 ASN1 modules to export functions returning ASN1_ITEM pointers
3283 instead of the ASN1_ITEM structures themselves. This adds several
3284 new macros which allow the underlying ASN1 function/structure to
3285 be accessed transparently. As a result code should not use ASN1_ITEM
3286 references directly (such as &X509_it) but instead use the relevant
3287 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3288 use of the new ASN1 code on platforms where exporting structures
3289 is problematical (for example in shared libraries) but exporting
3290 functions returning pointers to structures is not.
3293 *) Add support for overriding the generation of SSL/TLS session IDs.
3294 These callbacks can be registered either in an SSL_CTX or per SSL.
3295 The purpose of this is to allow applications to control, if they wish,
3296 the arbitrary values chosen for use as session IDs, particularly as it
3297 can be useful for session caching in multiple-server environments. A
3298 command-line switch for testing this (and any client code that wishes
3299 to use such a feature) has been added to "s_server".
3300 [Geoff Thorpe, Lutz Jaenicke]
3302 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3303 of the form '#if defined(...) || defined(...) || ...' and
3304 '#if !defined(...) && !defined(...) && ...'. This also avoids
3305 the growing number of special cases it was previously handling.
3308 *) Make all configuration macros available for application by making
3309 sure they are available in opensslconf.h, by giving them names starting
3310 with "OPENSSL_" to avoid conflicts with other packages and by making
3311 sure e_os2.h will cover all platform-specific cases together with
3313 Additionally, it is now possible to define configuration/platform-
3314 specific names (called "system identities"). In the C code, these
3315 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3316 macro with the name beginning with "OPENSSL_SYS_", which is determined
3317 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3321 *) New option -set_serial to 'req' and 'x509' this allows the serial
3322 number to use to be specified on the command line. Previously self
3323 signed certificates were hard coded with serial number 0 and the
3324 CA options of 'x509' had to use a serial number in a file which was
3328 *) New options to 'ca' utility to support V2 CRL entry extensions.
3329 Currently CRL reason, invalidity date and hold instruction are
3330 supported. Add new CRL extensions to V3 code and some new objects.
3333 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3334 disable standard block padding (aka PKCS#5 padding) in the EVP
3335 API, which was previously mandatory. This means that the data is
3336 not padded in any way and so the total length much be a multiple
3337 of the block size, otherwise an error occurs.
3340 *) Initial (incomplete) OCSP SSL support.
3343 *) New function OCSP_parse_url(). This splits up a URL into its host,
3344 port and path components: primarily to parse OCSP URLs. New -url
3345 option to ocsp utility.
3348 *) New nonce behavior. The return value of OCSP_check_nonce() now
3349 reflects the various checks performed. Applications can decide
3350 whether to tolerate certain situations such as an absent nonce
3351 in a response when one was present in a request: the ocsp application
3352 just prints out a warning. New function OCSP_add1_basic_nonce()
3353 this is to allow responders to include a nonce in a response even if
3354 the request is nonce-less.
3357 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3358 skipped when using openssl x509 multiple times on a single input file,
3359 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3362 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3363 set string type: to handle setting ASN1_TIME structures. Fix ca
3364 utility to correctly initialize revocation date of CRLs.
3367 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3368 the clients preferred ciphersuites and rather use its own preferences.
3369 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3370 Internet Explorer by ensuring unchanged hash method during stepup.
3371 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3374 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3375 to aes and add a new 'exist' option to print out symbols that don't
3379 *) Additional options to ocsp utility to allow flags to be set and
3380 additional certificates supplied.
3383 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3384 OCSP client a number of certificate to only verify the response
3388 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3389 handle the new API. Currently only ECB, CBC modes supported. Add new
3392 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3393 Encryption Standard (AES) Ciphersuites for Transport Layer
3394 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3395 not enabled by default and were not part of the "ALL" ciphersuite
3396 alias because they were not yet official; they could be
3397 explicitly requested by specifying the "AESdraft" ciphersuite
3398 group alias. In the final release of OpenSSL 0.9.7, the group
3399 alias is called "AES" and is part of "ALL".)
3400 [Ben Laurie, Steve Henson, Bodo Moeller]
3402 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3403 request to response.
3406 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3407 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3408 extract information from a certificate request. OCSP_response_create()
3409 creates a response and optionally adds a basic response structure.
3410 OCSP_basic_add1_status() adds a complete single response to a basic
3411 response and returns the OCSP_SINGLERESP structure just added (to allow
3412 extensions to be included for example). OCSP_basic_add1_cert() adds a
3413 certificate to a basic response and OCSP_basic_sign() signs a basic
3414 response with various flags. New helper functions ASN1_TIME_check()
3415 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3416 (converts ASN1_TIME to GeneralizedTime).
3419 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3420 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3421 structure from a certificate. X509_pubkey_digest() digests the public_key
3422 contents: this is used in various key identifiers.
3425 *) Make sk_sort() tolerate a NULL argument.
3426 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3428 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3429 passed by the function are trusted implicitly. If any of them signed the
3430 response then it is assumed to be valid and is not verified.
3433 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3434 to data. This was previously part of the PKCS7 ASN1 code. This
3435 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3436 [Steve Henson, reported by Kenneth R. Robinette
3437 <support@securenetterm.com>]
3439 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3440 routines: without these tracing memory leaks is very painful.
3441 Fix leaks in PKCS12 and PKCS7 routines.
3444 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3445 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3446 effectively meant GeneralizedTime would never be used. Now it
3447 is initialised to -1 but X509_time_adj() now has to check the value
3448 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3449 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3450 [Steve Henson, reported by Kenneth R. Robinette
3451 <support@securenetterm.com>]
3453 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3454 result in a zero length in the ASN1_INTEGER structure which was
3455 not consistent with the structure when d2i_ASN1_INTEGER() was used
3456 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3457 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3458 where it did not print out a minus for negative ASN1_INTEGER.
3461 *) Add summary printout to ocsp utility. The various functions which
3462 convert status values to strings have been renamed to:
3463 OCSP_response_status_str(), OCSP_cert_status_str() and
3464 OCSP_crl_reason_str() and are no longer static. New options
3465 to verify nonce values and to disable verification. OCSP response
3466 printout format cleaned up.
3469 *) Add additional OCSP certificate checks. These are those specified
3470 in RFC2560. This consists of two separate checks: the CA of the
3471 certificate being checked must either be the OCSP signer certificate
3472 or the issuer of the OCSP signer certificate. In the latter case the
3473 OCSP signer certificate must contain the OCSP signing extended key
3474 usage. This check is performed by attempting to match the OCSP
3475 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3476 in the OCSP_CERTID structures of the response.
3479 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3480 and related routines. This uses the standard OpenSSL certificate
3481 verify routines to perform initial checks (just CA validity) and
3482 to obtain the certificate chain. Then additional checks will be
3483 performed on the chain. Currently the root CA is checked to see
3484 if it is explicitly trusted for OCSP signing. This is used to set
3485 a root CA as a global signing root: that is any certificate that
3486 chains to that CA is an acceptable OCSP signing certificate.
3489 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3490 extensions from a separate configuration file.
3491 As when reading extensions from the main configuration file,
3492 the '-extensions ...' option may be used for specifying the
3494 [Massimiliano Pala <madwolf@comune.modena.it>]
3496 *) New OCSP utility. Allows OCSP requests to be generated or
3497 read. The request can be sent to a responder and the output
3498 parsed, outputed or printed in text form. Not complete yet:
3499 still needs to check the OCSP response validity.
3502 *) New subcommands for 'openssl ca':
3503 'openssl ca -status <serial>' prints the status of the cert with
3504 the given serial number (according to the index file).
3505 'openssl ca -updatedb' updates the expiry status of certificates
3507 [Massimiliano Pala <madwolf@comune.modena.it>]
3509 *) New '-newreq-nodes' command option to CA.pl. This is like
3510 '-newreq', but calls 'openssl req' with the '-nodes' option
3511 so that the resulting key is not encrypted.
3512 [Damien Miller <djm@mindrot.org>]
3514 *) New configuration for the GNU Hurd.
3515 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3517 *) Initial code to implement OCSP basic response verify. This
3518 is currently incomplete. Currently just finds the signer's
3519 certificate and verifies the signature on the response.
3522 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3523 value of OPENSSLDIR. This is available via the new '-d' option
3524 to 'openssl version', and is also included in 'openssl version -a'.
3527 *) Allowing defining memory allocation callbacks that will be given
3528 file name and line number information in additional arguments
3529 (a const char* and an int). The basic functionality remains, as
3530 well as the original possibility to just replace malloc(),
3531 realloc() and free() by functions that do not know about these
3532 additional arguments. To register and find out the current
3533 settings for extended allocation functions, the following
3534 functions are provided:
3536 CRYPTO_set_mem_ex_functions
3537 CRYPTO_set_locked_mem_ex_functions
3538 CRYPTO_get_mem_ex_functions
3539 CRYPTO_get_locked_mem_ex_functions
3541 These work the same way as CRYPTO_set_mem_functions and friends.
3542 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3543 extended allocation function is enabled.
3544 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3545 a conventional allocation function is enabled.
3546 [Richard Levitte, Bodo Moeller]
3548 *) Finish off removing the remaining LHASH function pointer casts.
3549 There should no longer be any prototype-casting required when using
3550 the LHASH abstraction, and any casts that remain are "bugs". See
3551 the callback types and macros at the head of lhash.h for details
3552 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3555 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3556 If /dev/[u]random devices are not available or do not return enough
3557 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3559 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3560 /etc/entropy will be queried once each in this sequence, quering stops
3561 when enough entropy was collected without querying more sockets.
3564 *) Change the Unix RAND_poll() variant to be able to poll several
3565 random devices, as specified by DEVRANDOM, until a sufficient amount
3566 of data has been collected. We spend at most 10 ms on each file
3567 (select timeout) and read in non-blocking mode. DEVRANDOM now
3568 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3569 (previously it was just the string "/dev/urandom"), so on typical
3570 platforms the 10 ms delay will never occur.
3571 Also separate out the Unix variant to its own file, rand_unix.c.
3572 For VMS, there's a currently-empty rand_vms.c.
3575 *) Move OCSP client related routines to ocsp_cl.c. These
3576 provide utility functions which an application needing
3577 to issue a request to an OCSP responder and analyse the
3578 response will typically need: as opposed to those which an
3579 OCSP responder itself would need which will be added later.
3581 OCSP_request_sign() signs an OCSP request with an API similar
3582 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3583 response. OCSP_response_get1_basic() extracts basic response
3584 from response. OCSP_resp_find_status(): finds and extracts status
3585 information from an OCSP_CERTID structure (which will be created
3586 when the request structure is built). These are built from lower
3587 level functions which work on OCSP_SINGLERESP structures but
3588 wont normally be used unless the application wishes to examine
3589 extensions in the OCSP response for example.
3591 Replace nonce routines with a pair of functions.
3592 OCSP_request_add1_nonce() adds a nonce value and optionally
3593 generates a random value. OCSP_check_nonce() checks the
3594 validity of the nonce in an OCSP response.
3597 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3598 This doesn't copy the supplied OCSP_CERTID and avoids the
3599 need to free up the newly created id. Change return type
3600 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3601 This can then be used to add extensions to the request.
3602 Deleted OCSP_request_new(), since most of its functionality
3603 is now in OCSP_REQUEST_new() (and the case insensitive name
3604 clash) apart from the ability to set the request name which
3605 will be added elsewhere.
3608 *) Update OCSP API. Remove obsolete extensions argument from
3609 various functions. Extensions are now handled using the new
3610 OCSP extension code. New simple OCSP HTTP function which
3611 can be used to send requests and parse the response.
3614 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3615 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3616 uses the special reorder version of SET OF to sort the attributes
3617 and reorder them to match the encoded order. This resolves a long
3618 standing problem: a verify on a PKCS7 structure just after signing
3619 it used to fail because the attribute order did not match the
3620 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3621 it uses the received order. This is necessary to tolerate some broken
3622 software that does not order SET OF. This is handled by encoding
3623 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3624 to produce the required SET OF.
3627 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3628 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3629 files to get correct declarations of the ASN.1 item variables.
3632 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3633 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3634 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3635 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3636 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3637 ASN1_ITEM and no wrapper functions.
3640 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3641 replace the old function pointer based I/O routines. Change most of
3642 the *_d2i_bio() and *_d2i_fp() functions to use these.
3645 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3646 lines, recognice more "algorithms" that can be deselected, and make
3647 it complain about algorithm deselection that isn't recognised.
3650 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3651 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3652 to use new functions. Add NO_ASN1_OLD which can be set to remove
3653 some old style ASN1 functions: this can be used to determine if old
3654 code will still work when these eventually go away.
3657 *) New extension functions for OCSP structures, these follow the
3658 same conventions as certificates and CRLs.
3661 *) New function X509V3_add1_i2d(). This automatically encodes and
3662 adds an extension. Its behaviour can be customised with various
3663 flags to append, replace or delete. Various wrappers added for
3664 certifcates and CRLs.
3667 *) Fix to avoid calling the underlying ASN1 print routine when
3668 an extension cannot be parsed. Correct a typo in the
3669 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3672 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3673 entries for variables.
3676 *) Add functionality to apps/openssl.c for detecting locking
3677 problems: As the program is single-threaded, all we have
3678 to do is register a locking callback using an array for
3679 storing which locks are currently held by the program.
3682 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3683 SSL_get_ex_data_X509_STORE_idx(), which is used in
3684 ssl_verify_cert_chain() and thus can be called at any time
3685 during TLS/SSL handshakes so that thread-safety is essential.
3686 Unfortunately, the ex_data design is not at all suited
3687 for multi-threaded use, so it probably should be abolished.
3690 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3691 [Broadcom, tweaked and integrated by Geoff Thorpe]
3693 *) Move common extension printing code to new function
3694 X509V3_print_extensions(). Reorganise OCSP print routines and
3695 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3698 *) New function X509_signature_print() to remove duplication in some
3702 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3703 set (this was treated exactly the same as SET OF previously). This
3704 is used to reorder the STACK representing the structure to match the
3705 encoding. This will be used to get round a problem where a PKCS7
3706 structure which was signed could not be verified because the STACK
3707 order did not reflect the encoded order.
3710 *) Reimplement the OCSP ASN1 module using the new code.
3713 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3714 for its ASN1 operations. The old style function pointers still exist
3715 for now but they will eventually go away.
3718 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3719 completely replaces the old ASN1 functionality with a table driven
3720 encoder and decoder which interprets an ASN1_ITEM structure describing
3721 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3722 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3723 has also been converted to the new form.
3726 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3727 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3728 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3729 for negative moduli.
3732 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3733 of not touching the result's sign bit.
3736 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3740 *) Changed the LHASH code to use prototypes for callbacks, and created
3741 macros to declare and implement thin (optionally static) functions
3742 that provide type-safety and avoid function pointer casting for the
3743 type-specific callbacks.
3746 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3748 [Veers Staats <staatsvr@asc.hpc.mil>,
3749 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3751 *) Reformat the FAQ so the different questions and answers can be divided
3752 in sections depending on the subject.
3755 *) Have the zlib compression code load ZLIB.DLL dynamically under
3759 *) New function BN_mod_sqrt for computing square roots modulo a prime
3760 (using the probabilistic Tonelli-Shanks algorithm unless
3761 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3762 be handled deterministically).
3763 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3765 *) Make BN_mod_inverse faster by explicitly handling small quotients
3766 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3767 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3770 *) New function BN_kronecker.
3773 *) Fix BN_gcd so that it works on negative inputs; the result is
3774 positive unless both parameters are zero.
3775 Previously something reasonably close to an infinite loop was
3776 possible because numbers could be growing instead of shrinking
3777 in the implementation of Euclid's algorithm.
3780 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3781 sign of the number in question.
3783 Fix BN_is_word(a,w) to work correctly for w == 0.
3785 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3786 because its test if the absolute value of 'a' equals 'w'.
3787 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3788 it exists mostly for use in the implementations of BN_is_zero(),
3789 BN_is_one(), and BN_is_word().
3792 *) New function BN_swap.
3795 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3796 the exponentiation functions are more likely to produce reasonable
3797 results on negative inputs.
3800 *) Change BN_mod_mul so that the result is always non-negative.
3801 Previously, it could be negative if one of the factors was negative;
3802 I don't think anyone really wanted that behaviour.
3805 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3806 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3807 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3808 and add new functions:
3817 BN_mod_lshift1_quick
3821 These functions always generate non-negative results.
3823 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3824 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3826 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3827 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3828 be reduced modulo m.
3829 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3832 The following entry accidentily appeared in the CHANGES file
3833 distributed with OpenSSL 0.9.7. The modifications described in
3834 it do *not* apply to OpenSSL 0.9.7.
3836 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3837 was actually never needed) and in BN_mul(). The removal in BN_mul()
3838 required a small change in bn_mul_part_recursive() and the addition
3839 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3840 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3841 bn_sub_words() and bn_add_words() except they take arrays with
3846 *) In 'openssl passwd', verify passwords read from the terminal
3847 unless the '-salt' option is used (which usually means that
3848 verification would just waste user's time since the resulting
3849 hash is going to be compared with some given password hash)
3850 or the new '-noverify' option is used.
3852 This is an incompatible change, but it does not affect
3853 non-interactive use of 'openssl passwd' (passwords on the command
3854 line, '-stdin' option, '-in ...' option) and thus should not
3858 *) Remove all references to RSAref, since there's no more need for it.
3861 *) Make DSO load along a path given through an environment variable
3862 (SHLIB_PATH) with shl_load().
3865 *) Constify the ENGINE code as a result of BIGNUM constification.
3866 Also constify the RSA code and most things related to it. In a
3867 few places, most notable in the depth of the ASN.1 code, ugly
3868 casts back to non-const were required (to be solved at a later
3872 *) Make it so the openssl application has all engines loaded by default.
3875 *) Constify the BIGNUM routines a little more.
3878 *) Add the following functions:
3880 ENGINE_load_cswift()
3882 ENGINE_load_atalla()
3884 ENGINE_load_builtin_engines()
3886 That way, an application can itself choose if external engines that
3887 are built-in in OpenSSL shall ever be used or not. The benefit is
3888 that applications won't have to be linked with libdl or other dso
3889 libraries unless it's really needed.
3891 Changed 'openssl engine' to load all engines on demand.
3892 Changed the engine header files to avoid the duplication of some
3893 declarations (they differed!).
3896 *) 'openssl engine' can now list capabilities.
3899 *) Better error reporting in 'openssl engine'.
3902 *) Never call load_dh_param(NULL) in s_server.
3905 *) Add engine application. It can currently list engines by name and
3906 identity, and test if they are actually available.
3909 *) Improve RPM specification file by forcing symbolic linking and making
3910 sure the installed documentation is also owned by root.root.
3911 [Damien Miller <djm@mindrot.org>]
3913 *) Give the OpenSSL applications more possibilities to make use of
3914 keys (public as well as private) handled by engines.
3917 *) Add OCSP code that comes from CertCo.
3920 *) Add VMS support for the Rijndael code.
3923 *) Added untested support for Nuron crypto accelerator.
3926 *) Add support for external cryptographic devices. This code was
3927 previously distributed separately as the "engine" branch.
3928 [Geoff Thorpe, Richard Levitte]
3930 *) Rework the filename-translation in the DSO code. It is now possible to
3931 have far greater control over how a "name" is turned into a filename
3932 depending on the operating environment and any oddities about the
3933 different shared library filenames on each system.
3936 *) Support threads on FreeBSD-elf in Configure.
3939 *) Fix for SHA1 assembly problem with MASM: it produces
3940 warnings about corrupt line number information when assembling
3941 with debugging information. This is caused by the overlapping
3943 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3946 NCONF_get_number() has no error checking at all. As a replacement,
3947 NCONF_get_number_e() is defined (_e for "error checking") and is
3948 promoted strongly. The old NCONF_get_number is kept around for
3949 binary backward compatibility.
3950 Make it possible for methods to load from something other than a BIO,
3951 by providing a function pointer that is given a name instead of a BIO.
3952 For example, this could be used to load configuration data from an
3956 *) Fix for non blocking accept BIOs. Added new I/O special reason
3957 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3958 with non blocking I/O was not possible because no retry code was
3959 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3963 *) Added the beginnings of Rijndael support.
3966 *) Fix for bug in DirectoryString mask setting. Add support for
3967 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3968 to allow certificate printing to more controllable, additional
3969 'certopt' option to 'x509' to allow new printing options to be
3973 *) Clean old EAY MD5 hack from e_os.h.
3976 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3978 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3979 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3980 [Joe Orton, Steve Henson]
3982 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3984 *) Fix additional bug revealed by the NISCC test suite:
3986 Stop bug triggering large recursion when presented with
3987 certain ASN.1 tags (CVE-2003-0851)
3990 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3992 *) Fix various bugs revealed by running the NISCC test suite:
3994 Stop out of bounds reads in the ASN1 code when presented with
3995 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3997 If verify callback ignores invalid public key errors don't try to check
3998 certificate signature with the NULL public key.
4002 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4003 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4007 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4008 extra data after the compression methods not only for TLS 1.0
4009 but also for SSL 3.0 (as required by the specification).
4010 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4012 *) Change X509_certificate_type() to mark the key as exported/exportable
4013 when it's 512 *bits* long, not 512 bytes.
4016 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4018 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4019 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4020 a protocol version number mismatch like a decryption error
4021 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4024 *) Turn on RSA blinding by default in the default implementation
4025 to avoid a timing attack. Applications that don't want it can call
4026 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4027 They would be ill-advised to do so in most cases.
4028 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4030 *) Change RSA blinding code so that it works when the PRNG is not
4031 seeded (in this case, the secret RSA exponent is abused as
4032 an unpredictable seed -- if it is not unpredictable, there
4033 is no point in blinding anyway). Make RSA blinding thread-safe
4034 by remembering the creator's thread ID in rsa->blinding and
4035 having all other threads use local one-time blinding factors
4036 (this requires more computation than sharing rsa->blinding, but
4037 avoids excessive locking; and if an RSA object is not shared
4038 between threads, blinding will still be very fast).
4041 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4043 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4044 via timing by performing a MAC computation even if incorrrect
4045 block cipher padding has been found. This is a countermeasure
4046 against active attacks where the attacker has to distinguish
4047 between bad padding and a MAC verification error. (CVE-2003-0078)
4049 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4050 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4051 Martin Vuagnoux (EPFL, Ilion)]
4053 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4055 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4056 memory from it's contents. This is done with a counter that will
4057 place alternating values in each byte. This can be used to solve
4058 two issues: 1) the removal of calls to memset() by highly optimizing
4059 compilers, and 2) cleansing with other values than 0, since those can
4060 be read through on certain media, for example a swap space on disk.
4063 *) Bugfix: client side session caching did not work with external caching,
4064 because the session->cipher setting was not restored when reloading
4065 from the external cache. This problem was masked, when
4066 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4067 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4070 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4071 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4072 [Zeev Lieber <zeev-l@yahoo.com>]
4074 *) Undo an undocumented change introduced in 0.9.6e which caused
4075 repeated calls to OpenSSL_add_all_ciphers() and
4076 OpenSSL_add_all_digests() to be ignored, even after calling
4080 *) Change the default configuration reader to deal with last line not
4081 being properly terminated.
4084 *) Change X509_NAME_cmp() so it applies the special rules on handling
4085 DN values that are of type PrintableString, as well as RDNs of type
4086 emailAddress where the value has the type ia5String.
4087 [stefank@valicert.com via Richard Levitte]
4089 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4090 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4091 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4092 the bitwise-OR of the two for use by the majority of applications
4093 wanting this behaviour, and update the docs. The documented
4094 behaviour and actual behaviour were inconsistent and had been
4095 changing anyway, so this is more a bug-fix than a behavioural
4097 [Geoff Thorpe, diagnosed by Nadav Har'El]
4099 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4100 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4103 *) Fix initialization code race conditions in
4104 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4105 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4106 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4107 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4108 ssl2_get_cipher_by_char(),
4109 ssl3_get_cipher_by_char().
4110 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4112 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4113 the cached sessions are flushed, as the remove_cb() might use ex_data
4114 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4115 (see [openssl.org #212]).
4116 [Geoff Thorpe, Lutz Jaenicke]
4118 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4119 length, instead of the encoding length to d2i_ASN1_OBJECT.
4122 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4124 *) [In 0.9.6g-engine release:]
4125 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4126 [Lynn Gazis <lgazis@rainbow.com>]
4128 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4130 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4131 and get fix the header length calculation.
4132 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4133 Alon Kantor <alonk@checkpoint.com> (and others),
4136 *) Use proper error handling instead of 'assertions' in buffer
4137 overflow checks added in 0.9.6e. This prevents DoS (the
4138 assertions could call abort()).
4139 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4141 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4143 *) Add various sanity checks to asn1_get_length() to reject
4144 the ASN1 length bytes if they exceed sizeof(long), will appear
4145 negative or the content length exceeds the length of the
4147 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4149 *) Fix cipher selection routines: ciphers without encryption had no flags
4150 for the cipher strength set and where therefore not handled correctly
4151 by the selection routines (PR #130).
4154 *) Fix EVP_dsa_sha macro.
4158 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4159 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4160 that was added in OpenSSL 0.9.6d.
4162 As the countermeasure turned out to be incompatible with some
4163 broken SSL implementations, the new option is part of SSL_OP_ALL.
4164 SSL_OP_ALL is usually employed when compatibility with weird SSL
4165 implementations is desired (e.g. '-bugs' option to 's_client' and
4166 's_server'), so the new option is automatically set in many
4170 *) Changes in security patch:
4172 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4173 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4174 Air Force Materiel Command, USAF, under agreement number
4177 *) Add various sanity checks to asn1_get_length() to reject
4178 the ASN1 length bytes if they exceed sizeof(long), will appear
4179 negative or the content length exceeds the length of the
4180 supplied buffer. (CVE-2002-0659)
4181 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4183 *) Assertions for various potential buffer overflows, not known to
4185 [Ben Laurie (CHATS)]
4187 *) Various temporary buffers to hold ASCII versions of integers were
4188 too small for 64 bit platforms. (CVE-2002-0655)
4189 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4191 *) Remote buffer overflow in SSL3 protocol - an attacker could
4192 supply an oversized session ID to a client. (CVE-2002-0656)
4193 [Ben Laurie (CHATS)]
4195 *) Remote buffer overflow in SSL2 protocol - an attacker could
4196 supply an oversized client master key. (CVE-2002-0656)
4197 [Ben Laurie (CHATS)]
4199 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4201 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4202 encoded as NULL) with id-dsa-with-sha1.
4203 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4205 *) Check various X509_...() return values in apps/req.c.
4206 [Nils Larsch <nla@trustcenter.de>]
4208 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4209 an end-of-file condition would erronously be flagged, when the CRLF
4210 was just at the end of a processed block. The bug was discovered when
4211 processing data through a buffering memory BIO handing the data to a
4212 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4213 <ptsekov@syntrex.com> and Nedelcho Stanev.
4216 *) Implement a countermeasure against a vulnerability recently found
4217 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4218 before application data chunks to avoid the use of known IVs
4219 with data potentially chosen by the attacker.
4222 *) Fix length checks in ssl3_get_client_hello().
4225 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4226 to prevent ssl3_read_internal() from incorrectly assuming that
4227 ssl3_read_bytes() found application data while handshake
4228 processing was enabled when in fact s->s3->in_read_app_data was
4229 merely automatically cleared during the initial handshake.
4230 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4232 *) Fix object definitions for Private and Enterprise: they were not
4233 recognized in their shortname (=lowercase) representation. Extend
4234 obj_dat.pl to issue an error when using undefined keywords instead
4235 of silently ignoring the problem (Svenning Sorensen
4236 <sss@sss.dnsalias.net>).
4239 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4240 generators, i.e. generators other than 2 and 5. (Previously, the
4241 code did not properly initialise the 'add' and 'rem' values to
4242 BN_generate_prime().)
4244 In the new general case, we do not insist that 'generator' is
4245 actually a primitive root: This requirement is rather pointless;
4246 a generator of the order-q subgroup is just as good, if not
4250 *) Map new X509 verification errors to alerts. Discovered and submitted by
4251 Tom Wu <tom@arcot.com>.
4254 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4255 returning non-zero before the data has been completely received
4256 when using non-blocking I/O.
4257 [Bodo Moeller; problem pointed out by John Hughes]
4259 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4260 [Ben Laurie, Lutz Jaenicke]
4262 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4263 Yoram Zahavi <YoramZ@gilian.com>).
4266 *) Add information about CygWin 1.3 and on, and preserve proper
4267 configuration for the versions before that.
4268 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4270 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4271 check whether we deal with a copy of a session and do not delete from
4272 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4273 <izhar@checkpoint.com>.
4276 *) Do not store session data into the internal session cache, if it
4277 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4278 flag is set). Proposed by Aslam <aslam@funk.com>.
4281 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4285 *) [In 0.9.6d-engine release:]
4286 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4287 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4289 *) Add the configuration target linux-s390x.
4290 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4292 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4293 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4294 variable as an indication that a ClientHello message has been
4295 received. As the flag value will be lost between multiple
4296 invocations of ssl3_accept when using non-blocking I/O, the
4297 function may not be aware that a handshake has actually taken
4298 place, thus preventing a new session from being added to the
4301 To avoid this problem, we now set s->new_session to 2 instead of
4302 using a local variable.
4303 [Lutz Jaenicke, Bodo Moeller]
4305 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4306 if the SSL_R_LENGTH_MISMATCH error is detected.
4307 [Geoff Thorpe, Bodo Moeller]
4309 *) New 'shared_ldflag' column in Configure platform table.
4312 *) Fix EVP_CIPHER_mode macro.
4313 ["Dan S. Camper" <dan@bti.net>]
4315 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4316 type, we must throw them away by setting rr->length to 0.
4317 [D P Chang <dpc@qualys.com>]
4319 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4321 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4322 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4323 worked incorrectly for those cases where range = 10..._2 and
4324 3*range is two bits longer than range.)
4327 *) Only add signing time to PKCS7 structures if it is not already
4331 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4332 OBJ_ld_ce should be OBJ_id_ce.
4333 Also some ip-pda OIDs in crypto/objects/objects.txt were
4334 incorrect (cf. RFC 3039).
4335 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4337 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4338 returns early because it has nothing to do.
4339 [Andy Schneider <andy.schneider@bjss.co.uk>]
4341 *) [In 0.9.6c-engine release:]
4342 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4343 [Andy Schneider <andy.schneider@bjss.co.uk>]
4345 *) [In 0.9.6c-engine release:]
4346 Add support for Cryptographic Appliance's keyserver technology.
4347 (Use engine 'keyclient')
4348 [Cryptographic Appliances and Geoff Thorpe]
4350 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4351 is called via tools/c89.sh because arguments have to be
4352 rearranged (all '-L' options must appear before the first object
4354 [Richard Shapiro <rshapiro@abinitio.com>]
4356 *) [In 0.9.6c-engine release:]
4357 Add support for Broadcom crypto accelerator cards, backported
4359 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4361 *) [In 0.9.6c-engine release:]
4362 Add support for SureWare crypto accelerator cards from
4363 Baltimore Technologies. (Use engine 'sureware')
4364 [Baltimore Technologies and Mark Cox]
4366 *) [In 0.9.6c-engine release:]
4367 Add support for crypto accelerator cards from Accelerated
4368 Encryption Processing, www.aep.ie. (Use engine 'aep')
4369 [AEP Inc. and Mark Cox]
4371 *) Add a configuration entry for gcc on UnixWare.
4372 [Gary Benson <gbenson@redhat.com>]
4374 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4375 messages are stored in a single piece (fixed-length part and
4376 variable-length part combined) and fix various bugs found on the way.
4379 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4380 instead. BIO_gethostbyname() does not know what timeouts are
4381 appropriate, so entries would stay in cache even when they have
4383 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4385 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4386 faced with a pathologically small ClientHello fragment that does
4387 not contain client_version: Instead of aborting with an error,
4388 simply choose the highest available protocol version (i.e.,
4389 TLS 1.0 unless it is disabled). In practice, ClientHello
4390 messages are never sent like this, but this change gives us
4391 strictly correct behaviour at least for TLS.
4394 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4395 never resets s->method to s->ctx->method when called from within
4396 one of the SSL handshake functions.
4397 [Bodo Moeller; problem pointed out by Niko Baric]
4399 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4400 (sent using the client's version number) if client_version is
4401 smaller than the protocol version in use. Also change
4402 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4403 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4404 the client will at least see that alert.
4407 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4411 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4412 client receives HelloRequest while in a handshake.
4413 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4415 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4416 should end in 'break', not 'goto end' which circuments various
4417 cleanups done in state SSL_ST_OK. But session related stuff
4418 must be disabled for SSL_ST_OK in the case that we just sent a
4421 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4422 before just sending a HelloRequest.
4423 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4425 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4426 reveal whether illegal block cipher padding was found or a MAC
4427 verification error occured. (Neither SSLerr() codes nor alerts
4428 are directly visible to potential attackers, but the information
4429 may leak via logfiles.)
4431 Similar changes are not required for the SSL 2.0 implementation
4432 because the number of padding bytes is sent in clear for SSL 2.0,
4433 and the extra bytes are just ignored. However ssl/s2_pkt.c
4434 failed to verify that the purported number of padding bytes is in
4438 *) Add OpenUNIX-8 support including shared libraries
4439 (Boyd Lynn Gerber <gerberb@zenez.com>).
4442 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4443 'wristwatch attack' using huge encoding parameters (cf.
4444 James H. Manger's CRYPTO 2001 paper). Note that the
4445 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4446 encoding parameters and hence was not vulnerable.
4449 *) BN_sqr() bug fix.
4450 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4452 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4453 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4454 followed by modular reduction.
4455 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4457 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4458 equivalent based on BN_pseudo_rand() instead of BN_rand().
4461 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4462 This function was broken, as the check for a new client hello message
4463 to handle SGC did not allow these large messages.
4464 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4467 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4470 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4471 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4474 *) Rework the configuration and shared library support for Tru64 Unix.
4475 The configuration part makes use of modern compiler features and
4476 still retains old compiler behavior for those that run older versions
4477 of the OS. The shared library support part includes a variant that
4478 uses the RPATH feature, and is available through the special
4479 configuration target "alpha-cc-rpath", which will never be selected
4481 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4483 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4484 with the same message size as in ssl3_get_certificate_request().
4485 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4486 messages might inadvertently be reject as too long.
4487 [Petr Lampa <lampa@fee.vutbr.cz>]
4489 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4492 *) Modified SSL library such that the verify_callback that has been set
4493 specificly for an SSL object with SSL_set_verify() is actually being
4494 used. Before the change, a verify_callback set with this function was
4495 ignored and the verify_callback() set in the SSL_CTX at the time of
4496 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4497 to allow the necessary settings.
4500 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4501 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4502 done automatically (in contradiction to the requirements of the C
4503 standard). This made problems when used from OpenSSH.
4506 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4507 dh->length and always used
4509 BN_rand_range(priv_key, dh->p).
4511 BN_rand_range() is not necessary for Diffie-Hellman, and this
4512 specific range makes Diffie-Hellman unnecessarily inefficient if
4513 dh->length (recommended exponent length) is much smaller than the
4514 length of dh->p. We could use BN_rand_range() if the order of
4515 the subgroup was stored in the DH structure, but we only have
4520 BN_rand(priv_key, l, ...)
4522 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4528 RSA_eay_public_encrypt
4529 RSA_eay_private_decrypt
4530 RSA_eay_private_encrypt (signing)
4531 RSA_eay_public_decrypt (signature verification)
4533 (default implementations for RSA_public_encrypt,
4534 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4535 always reject numbers >= n.
4538 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4539 to synchronize access to 'locking_thread'. This is necessary on
4540 systems where access to 'locking_thread' (an 'unsigned long'
4541 variable) is not atomic.
4544 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4545 *before* setting the 'crypto_lock_rand' flag. The previous code had
4546 a race condition if 0 is a valid thread ID.
4547 [Travis Vitek <vitek@roguewave.com>]
4549 *) Add support for shared libraries under Irix.
4550 [Albert Chin-A-Young <china@thewrittenword.com>]
4552 *) Add configuration option to build on Linux on both big-endian and
4554 [Ralf Baechle <ralf@uni-koblenz.de>]
4556 *) Add the possibility to create shared libraries on HP-UX.
4559 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4561 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4562 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4563 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4564 PRNG state recovery was possible based on the output of
4565 one PRNG request appropriately sized to gain knowledge on
4566 'md' followed by enough consecutive 1-byte PRNG requests
4567 to traverse all of 'state'.
4569 1. When updating 'md_local' (the current thread's copy of 'md')
4570 during PRNG output generation, hash all of the previous
4571 'md_local' value, not just the half used for PRNG output.
4573 2. Make the number of bytes from 'state' included into the hash
4574 independent from the number of PRNG bytes requested.
4576 The first measure alone would be sufficient to avoid
4577 Markku-Juhani's attack. (Actually it had never occurred
4578 to me that the half of 'md_local' used for chaining was the
4579 half from which PRNG output bytes were taken -- I had always
4580 assumed that the secret half would be used.) The second
4581 measure makes sure that additional data from 'state' is never
4582 mixed into 'md_local' in small portions; this heuristically
4583 further strengthens the PRNG.
4586 *) Fix crypto/bn/asm/mips3.s.
4589 *) When only the key is given to "enc", the IV is undefined. Print out
4590 an error message in this case.
4593 *) Handle special case when X509_NAME is empty in X509 printing routines.
4596 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4597 positive and less than q.
4600 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4601 used: it isn't thread safe and the add_lock_callback should handle
4603 [Paul Rose <Paul.Rose@bridge.com>]
4605 *) Verify that incoming data obeys the block size in
4606 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4610 [Ulf Möller, Bodo Möller]
4612 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4613 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4614 when fixing the server behaviour for backwards-compatible 'client
4615 hello' messages. (Note that the attack is impractical against
4616 SSL 3.0 and TLS 1.0 anyway because length and version checking
4617 means that the probability of guessing a valid ciphertext is
4618 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4621 Before 0.9.5, the countermeasure (hide the error by generating a
4622 random 'decryption result') did not work properly because
4623 ERR_clear_error() was missing, meaning that SSL_get_error() would
4624 detect the supposedly ignored error.
4626 Both problems are now fixed.
4629 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4630 (previously it was 1024).
4633 *) Fix for compatibility mode trust settings: ignore trust settings
4634 unless some valid trust or reject settings are present.
4637 *) Fix for blowfish EVP: its a variable length cipher.
4640 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4641 parameters in DSA public key structures and return an error in the
4642 DSA routines if parameters are absent.
4645 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4646 in the current directory if neither $RANDFILE nor $HOME was set.
4647 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4648 caused some confusion to Windows users who haven't defined $HOME.
4649 Thus RAND_file_name() is changed again: e_os.h can define a
4650 DEFAULT_HOME, which will be used if $HOME is not set.
4651 For Windows, we use "C:"; on other platforms, we still require
4652 environment variables.
4654 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4655 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4656 having multiple threads call RAND_poll() concurrently.
4659 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4660 combination of a flag and a thread ID variable.
4661 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4662 flag), *other* threads can enter ssleay_add_bytes without obeying
4663 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4664 that they do not hold after the first thread unsets add_do_not_lock).
4667 *) Change bctest again: '-x' expressions are not available in all
4671 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4673 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4674 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4676 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4677 the default extension for executables, if any. Also, make the perl
4678 scripts that use symlink() to test if it really exists and use "cp"
4679 if it doesn't. All this made OpenSSL compilable and installable in
4683 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4684 If SEQUENCE is length is indefinite just set c->slen to the total
4685 amount of data available.
4686 [Steve Henson, reported by shige@FreeBSD.org]
4687 [This change does not apply to 0.9.7.]
4689 *) Change bctest to avoid here-documents inside command substitution
4690 (workaround for FreeBSD /bin/sh bug).
4691 For compatibility with Ultrix, avoid shell functions (introduced
4692 in the bctest version that searches along $PATH).
4695 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4696 with des_encrypt() defined on some operating systems, like Solaris
4700 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4701 On the Importance of Eliminating Errors in Cryptographic
4702 Computations, J. Cryptology 14 (2001) 2, 101-119,
4703 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4706 *) MIPS assembler BIGNUM division bug fix.
4709 *) Disabled incorrect Alpha assembler code.
4712 *) Fix PKCS#7 decode routines so they correctly update the length
4713 after reading an EOC for the EXPLICIT tag.
4715 [This change does not apply to 0.9.7.]
4717 *) Fix bug in PKCS#12 key generation routines. This was triggered
4718 if a 3DES key was generated with a 0 initial byte. Include
4719 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4720 (but broken) behaviour.
4723 *) Enhance bctest to search for a working bc along $PATH and print
4725 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4727 *) Fix memory leaks in err.c: free err_data string if necessary;
4728 don't write to the wrong index in ERR_set_error_data.
4731 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4735 *) Replace rdtsc with _emit statements for VC++ version 5.
4736 [Jeremy Cooper <jeremy@baymoo.org>]
4738 *) Make it possible to reuse SSLv2 sessions.
4741 *) In copy_email() check for >= 0 as a return value for
4742 X509_NAME_get_index_by_NID() since 0 is a valid index.
4743 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4745 *) Avoid coredump with unsupported or invalid public keys by checking if
4746 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4747 PKCS7_verify() fails with non detached data.
4750 *) Don't use getenv in library functions when run as setuid/setgid.
4751 New function OPENSSL_issetugid().
4754 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4755 due to incorrect handling of multi-threading:
4757 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4759 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4761 3. Count how many times MemCheck_off() has been called so that
4762 nested use can be treated correctly. This also avoids
4763 inband-signalling in the previous code (which relied on the
4764 assumption that thread ID 0 is impossible).
4767 *) Add "-rand" option also to s_client and s_server.
4770 *) Fix CPU detection on Irix 6.x.
4771 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4772 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4774 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4777 [This change does not apply to 0.9.7.]
4779 *) Use the cached encoding of an X509_NAME structure rather than
4780 copying it. This is apparently the reason for the libsafe "errors"
4781 but the code is actually correct.
4784 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4785 Bleichenbacher's DSA attack.
4786 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4787 to be set and top=0 forces the highest bit to be set; top=-1 is new
4788 and leaves the highest bit random.
4789 [Ulf Moeller, Bodo Moeller]
4791 *) In the NCONF_...-based implementations for CONF_... queries
4792 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4793 a temporary CONF structure with the data component set to NULL
4794 (which gives segmentation faults in lh_retrieve).
4795 Instead, use NULL for the CONF pointer in CONF_get_string and
4796 CONF_get_number (which may use environment variables) and directly
4797 return NULL from CONF_get_section.
4800 *) Fix potential buffer overrun for EBCDIC.
4803 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4804 keyUsage if basicConstraints absent for a CA.
4807 *) Make SMIME_write_PKCS7() write mail header values with a format that
4808 is more generally accepted (no spaces before the semicolon), since
4809 some programs can't parse those values properly otherwise. Also make
4810 sure BIO's that break lines after each write do not create invalid
4814 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4815 macros previously used would not encode an empty SEQUENCE OF
4816 and break the signature.
4818 [This change does not apply to 0.9.7.]
4820 *) Zero the premaster secret after deriving the master secret in
4824 *) Add some EVP_add_digest_alias registrations (as found in
4825 OpenSSL_add_all_digests()) to SSL_library_init()
4826 aka OpenSSL_add_ssl_algorithms(). This provides improved
4827 compatibility with peers using X.509 certificates
4828 with unconventional AlgorithmIdentifier OIDs.
4831 *) Fix for Irix with NO_ASM.
4832 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4834 *) ./config script fixes.
4835 [Ulf Moeller, Richard Levitte]
4837 *) Fix 'openssl passwd -1'.
4840 *) Change PKCS12_key_gen_asc() so it can cope with non null
4841 terminated strings whose length is passed in the passlen
4842 parameter, for example from PEM callbacks. This was done
4843 by adding an extra length parameter to asc2uni().
4844 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4846 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4847 call failed, free the DSA structure.
4850 *) Fix to uni2asc() to cope with zero length Unicode strings.
4851 These are present in some PKCS#12 files.
4854 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4855 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4856 when writing a 32767 byte record.
4857 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4859 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4860 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4862 (RSA objects have a reference count access to which is protected
4863 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4864 so they are meant to be shared between threads.)
4865 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4866 "Reddie, Steven" <Steven.Reddie@ca.com>]
4868 *) Fix a deadlock in CRYPTO_mem_leaks().
4871 *) Use better test patterns in bntest.
4874 *) rand_win.c fix for Borland C.
4877 *) BN_rshift bugfix for n == 0.
4880 *) Add a 'bctest' script that checks for some known 'bc' bugs
4881 so that 'make test' does not abort just because 'bc' is broken.
4884 *) Store verify_result within SSL_SESSION also for client side to
4885 avoid potential security hole. (Re-used sessions on the client side
4886 always resulted in verify_result==X509_V_OK, not using the original
4887 result of the server certificate verification.)
4890 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4891 SSL3_RT_APPLICATION_DATA, return 0.
4892 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4896 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4897 releases, have been re-implemented by renaming the previous
4898 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4899 and ssl3_read_internal, respectively, and adding 'peek' parameters
4900 to them. The new ssl[23]_{read,peek} functions are calls to
4901 ssl[23]_read_internal with the 'peek' flag set appropriately.
4902 A 'peek' parameter has also been added to ssl3_read_bytes, which
4903 does the actual work for ssl3_read_internal.
4906 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4907 the method-specific "init()" handler. Also clean up ex_data after
4908 calling the method-specific "finish()" handler. Previously, this was
4909 happening the other way round.
4912 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4913 The previous value, 12, was not always sufficient for BN_mod_exp().
4916 *) Make sure that shared libraries get the internal name engine with
4917 the full version number and not just 0. This should mark the
4918 shared libraries as not backward compatible. Of course, this should
4919 be changed again when we can guarantee backward binary compatibility.
4922 *) Fix typo in get_cert_by_subject() in by_dir.c
4923 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4925 *) Rework the system to generate shared libraries:
4927 - Make note of the expected extension for the shared libraries and
4928 if there is a need for symbolic links from for example libcrypto.so.0
4929 to libcrypto.so.0.9.7. There is extended info in Configure for
4932 - Make as few rebuilds of the shared libraries as possible.
4934 - Still avoid linking the OpenSSL programs with the shared libraries.
4936 - When installing, install the shared libraries separately from the
4940 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4942 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4943 and not in SSL_clear because the latter is also used by the
4944 accept/connect functions; previously, the settings made by
4945 SSL_set_read_ahead would be lost during the handshake.
4946 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4948 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4949 Previously, it would create entries for disableed algorithms no
4953 *) Added several new manual pages for SSL_* function.
4956 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4958 *) In ssl23_get_client_hello, generate an error message when faced
4959 with an initial SSL 3.0/TLS record that is too small to contain the
4960 first two bytes of the ClientHello message, i.e. client_version.
4961 (Note that this is a pathologic case that probably has never happened
4962 in real life.) The previous approach was to use the version number
4963 from the record header as a substitute; but our protocol choice
4964 should not depend on that one because it is not authenticated
4965 by the Finished messages.
4968 *) More robust randomness gathering functions for Windows.
4969 [Jeffrey Altman <jaltman@columbia.edu>]
4971 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4972 not set then we don't setup the error code for issuer check errors
4973 to avoid possibly overwriting other errors which the callback does
4974 handle. If an application does set the flag then we assume it knows
4975 what it is doing and can handle the new informational codes
4979 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4980 a general "ANY" type, as such it should be able to decode anything
4981 including tagged types. However it didn't check the class so it would
4982 wrongly interpret tagged types in the same way as their universal
4983 counterpart and unknown types were just rejected. Changed so that the
4984 tagged and unknown types are handled in the same way as a SEQUENCE:
4985 that is the encoding is stored intact. There is also a new type
4986 "V_ASN1_OTHER" which is used when the class is not universal, in this
4987 case we have no idea what the actual type is so we just lump them all
4991 *) On VMS, stdout may very well lead to a file that is written to
4992 in a record-oriented fashion. That means that every write() will
4993 write a separate record, which will be read separately by the
4994 programs trying to read from it. This can be very confusing.
4996 The solution is to put a BIO filter in the way that will buffer
4997 text until a linefeed is reached, and then write everything a
4998 line at a time, so every record written will be an actual line,
4999 not chunks of lines and not (usually doesn't happen, but I've
5000 seen it once) several lines in one record. BIO_f_linebuffer() is
5003 Currently, it's a VMS-only method, because that's where it has
5004 been tested well enough.
5007 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5008 it can return incorrect results.
5009 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5010 but it was in 0.9.6-beta[12].)
5013 *) Disable the check for content being present when verifying detached
5014 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5015 include zero length content when signing messages.
5018 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5019 BIO_ctrl (for BIO pairs).
5022 *) Add DSO method for VMS.
5025 *) Bug fix: Montgomery multiplication could produce results with the
5029 *) Add RPM specification openssl.spec and modify it to build three
5030 packages. The default package contains applications, application
5031 documentation and run-time libraries. The devel package contains
5032 include files, static libraries and function documentation. The
5033 doc package contains the contents of the doc directory. The original
5034 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5037 *) Add a large number of documentation files for many SSL routines.
5038 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5040 *) Add a configuration entry for Sony News 4.
5041 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5043 *) Don't set the two most significant bits to one when generating a
5044 random number < q in the DSA library.
5047 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5048 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5049 the underlying transport is blocking) if a handshake took place.
5050 (The default behaviour is needed by applications such as s_client
5051 and s_server that use select() to determine when to use SSL_read;
5052 but for applications that know in advance when to expect data, it
5053 just makes things more complicated.)
5056 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5060 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5061 work better on such systems.
5062 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5064 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5065 Update PKCS12_parse() so it copies the friendlyName and the
5066 keyid to the certificates aux info.
5069 *) Fix bug in PKCS7_verify() which caused an infinite loop
5070 if there was more than one signature.
5071 [Sven Uszpelkat <su@celocom.de>]
5073 *) Major change in util/mkdef.pl to include extra information
5074 about each symbol, as well as presentig variables as well
5075 as functions. This change means that there's n more need
5076 to rebuild the .num files when some algorithms are excluded.
5079 *) Allow the verify time to be set by an application,
5080 rather than always using the current time.
5083 *) Phase 2 verify code reorganisation. The certificate
5084 verify code now looks up an issuer certificate by a
5085 number of criteria: subject name, authority key id
5086 and key usage. It also verifies self signed certificates
5087 by the same criteria. The main comparison function is
5088 X509_check_issued() which performs these checks.
5090 Lot of changes were necessary in order to support this
5091 without completely rewriting the lookup code.
5093 Authority and subject key identifier are now cached.
5095 The LHASH 'certs' is X509_STORE has now been replaced
5096 by a STACK_OF(X509_OBJECT). This is mainly because an
5097 LHASH can't store or retrieve multiple objects with
5098 the same hash value.
5100 As a result various functions (which were all internal
5101 use only) have changed to handle the new X509_STORE
5102 structure. This will break anything that messed round
5103 with X509_STORE internally.
5105 The functions X509_STORE_add_cert() now checks for an
5106 exact match, rather than just subject name.
5108 The X509_STORE API doesn't directly support the retrieval
5109 of multiple certificates matching a given criteria, however
5110 this can be worked round by performing a lookup first
5111 (which will fill the cache with candidate certificates)
5112 and then examining the cache for matches. This is probably
5113 the best we can do without throwing out X509_LOOKUP
5114 entirely (maybe later...).
5116 The X509_VERIFY_CTX structure has been enhanced considerably.
5118 All certificate lookup operations now go via a get_issuer()
5119 callback. Although this currently uses an X509_STORE it
5120 can be replaced by custom lookups. This is a simple way
5121 to bypass the X509_STORE hackery necessary to make this
5122 work and makes it possible to use more efficient techniques
5123 in future. A very simple version which uses a simple
5124 STACK for its trusted certificate store is also provided
5125 using X509_STORE_CTX_trusted_stack().
5127 The verify_cb() and verify() callbacks now have equivalents
5128 in the X509_STORE_CTX structure.
5130 X509_STORE_CTX also has a 'flags' field which can be used
5131 to customise the verify behaviour.
5134 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5135 excludes S/MIME capabilities.
5138 *) When a certificate request is read in keep a copy of the
5139 original encoding of the signed data and use it when outputing
5140 again. Signatures then use the original encoding rather than
5141 a decoded, encoded version which may cause problems if the
5142 request is improperly encoded.
5145 *) For consistency with other BIO_puts implementations, call
5146 buffer_write(b, ...) directly in buffer_puts instead of calling
5149 In BIO_puts, increment b->num_write as in BIO_write.
5150 [Peter.Sylvester@EdelWeb.fr]
5152 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5153 BN_zero, we may not return a BIGNUM with an array consisting of
5157 *) Avoid calling abort() from within the library when problems are
5158 detected, except if preprocessor symbols have been defined
5159 (such as REF_CHECK, BN_DEBUG etc.).
5162 *) New openssl application 'rsautl'. This utility can be
5163 used for low level RSA operations. DER public key
5164 BIO/fp routines also added.
5167 *) New Configure entry and patches for compiling on QNX 4.
5168 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5170 *) A demo state-machine implementation was sponsored by
5171 Nuron (http://www.nuron.com/) and is now available in
5172 demos/state_machine.
5175 *) New options added to the 'dgst' utility for signature
5176 generation and verification.
5179 *) Unrecognized PKCS#7 content types are now handled via a
5180 catch all ASN1_TYPE structure. This allows unsupported
5181 types to be stored as a "blob" and an application can
5182 encode and decode it manually.
5185 *) Fix various signed/unsigned issues to make a_strex.c
5187 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5189 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5190 length if passed a buffer. ASN1_INTEGER_to_BN failed
5191 if passed a NULL BN and its argument was negative.
5192 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5194 *) Modification to PKCS#7 encoding routines to output definite
5195 length encoding. Since currently the whole structures are in
5196 memory there's not real point in using indefinite length
5197 constructed encoding. However if OpenSSL is compiled with
5198 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5201 *) Added BIO_vprintf() and BIO_vsnprintf().
5204 *) Added more prefixes to parse for in the the strings written
5205 through a logging bio, to cover all the levels that are available
5206 through syslog. The prefixes are now:
5208 PANIC, EMERG, EMR => LOG_EMERG
5209 ALERT, ALR => LOG_ALERT
5210 CRIT, CRI => LOG_CRIT
5211 ERROR, ERR => LOG_ERR
5212 WARNING, WARN, WAR => LOG_WARNING
5213 NOTICE, NOTE, NOT => LOG_NOTICE
5214 INFO, INF => LOG_INFO
5215 DEBUG, DBG => LOG_DEBUG
5217 and as before, if none of those prefixes are present at the
5218 beginning of the string, LOG_ERR is chosen.
5220 On Win32, the LOG_* levels are mapped according to this:
5222 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5223 LOG_WARNING => EVENTLOG_WARNING_TYPE
5224 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5228 *) Made it possible to reconfigure with just the configuration
5229 argument "reconf" or "reconfigure". The command line arguments
5230 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5231 and are retrieved from there when reconfiguring.
5235 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5237 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5240 *) The obj_dat.pl script was messing up the sorting of object
5241 names. The reason was that it compared the quoted version
5242 of strings as a result "OCSP" > "OCSP Signing" because
5243 " > SPACE. Changed script to store unquoted versions of
5244 names and add quotes on output. It was also omitting some
5245 names from the lookup table if they were given a default
5246 value (that is if SN is missing it is given the same
5247 value as LN and vice versa), these are now added on the
5248 grounds that if an object has a name we should be able to
5249 look it up. Finally added warning output when duplicate
5250 short or long names are found.
5253 *) Changes needed for Tandem NSK.
5254 [Scott Uroff <scott@xypro.com>]
5256 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5257 RSA_padding_check_SSLv23(), special padding was never detected
5258 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5259 version rollback attacks was not effective.
5261 In s23_clnt.c, don't use special rollback-attack detection padding
5262 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5263 client; similarly, in s23_srvr.c, don't do the rollback check if
5264 SSL 2.0 is the only protocol enabled in the server.
5267 *) Make it possible to get hexdumps of unprintable data with 'openssl
5268 asn1parse'. By implication, the functions ASN1_parse_dump() and
5269 BIO_dump_indent() are added.
5272 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5273 these print out strings and name structures based on various
5274 flags including RFC2253 support and proper handling of
5275 multibyte characters. Added options to the 'x509' utility
5276 to allow the various flags to be set.
5279 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5280 Also change the functions X509_cmp_current_time() and
5281 X509_gmtime_adj() work with an ASN1_TIME structure,
5282 this will enable certificates using GeneralizedTime in validity
5283 dates to be checked.
5286 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5287 negative public key encodings) on by default,
5288 NO_NEG_PUBKEY_BUG can be set to disable it.
5291 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5292 content octets. An i2c_ASN1_OBJECT is unnecessary because
5293 the encoding can be trivially obtained from the structure.
5296 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5297 not read locks (CRYPTO_r_[un]lock).
5300 *) A first attempt at creating official support for shared
5301 libraries through configuration. I've kept it so the
5302 default is static libraries only, and the OpenSSL programs
5303 are always statically linked for now, but there are
5304 preparations for dynamic linking in place.
5305 This has been tested on Linux and Tru64.
5308 *) Randomness polling function for Win9x, as described in:
5309 Peter Gutmann, Software Generation of Practically Strong
5313 *) Fix so PRNG is seeded in req if using an already existing
5317 *) New options to smime application. -inform and -outform
5318 allow alternative formats for the S/MIME message including
5319 PEM and DER. The -content option allows the content to be
5320 specified separately. This should allow things like Netscape
5321 form signing output easier to verify.
5324 *) Fix the ASN1 encoding of tags using the 'long form'.
5327 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5328 STRING types. These convert content octets to and from the
5329 underlying type. The actual tag and length octets are
5330 already assumed to have been read in and checked. These
5331 are needed because all other string types have virtually
5332 identical handling apart from the tag. By having versions
5333 of the ASN1 functions that just operate on content octets
5334 IMPLICIT tagging can be handled properly. It also allows
5335 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5336 and ASN1_INTEGER are identical apart from the tag.
5339 *) Change the handling of OID objects as follows:
5341 - New object identifiers are inserted in objects.txt, following
5342 the syntax given in objects.README.
5343 - objects.pl is used to process obj_mac.num and create a new
5345 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5348 This is currently kind of a hack, and the perl code in objects.pl
5349 isn't very elegant, but it works as I intended. The simplest way
5350 to check that it worked correctly is to look in obj_dat.h and
5351 check the array nid_objs and make sure the objects haven't moved
5352 around (this is important!). Additions are OK, as well as
5353 consistent name changes.
5356 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5359 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5360 The given file adds to whatever has already been seeded into the
5361 random pool through the RANDFILE configuration file option or
5362 environment variable, or the default random state file.
5365 *) mkstack.pl now sorts each macro group into lexical order.
5366 Previously the output order depended on the order the files
5367 appeared in the directory, resulting in needless rewriting
5371 *) Patches to make OpenSSL compile under Win32 again. Mostly
5372 work arounds for the VC++ problem that it treats func() as
5373 func(void). Also stripped out the parts of mkdef.pl that
5374 added extra typesafe functions: these no longer exist.
5377 *) Reorganisation of the stack code. The macros are now all
5378 collected in safestack.h . Each macro is defined in terms of
5379 a "stack macro" of the form SKM_<name>(type, a, b). The
5380 DEBUG_SAFESTACK is now handled in terms of function casts,
5381 this has the advantage of retaining type safety without the
5382 use of additional functions. If DEBUG_SAFESTACK is not defined
5383 then the non typesafe macros are used instead. Also modified the
5384 mkstack.pl script to handle the new form. Needs testing to see
5385 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5386 the default if no major problems. Similar behaviour for ASN1_SET_OF
5387 and PKCS12_STACK_OF.
5390 *) When some versions of IIS use the 'NET' form of private key the
5391 key derivation algorithm is different. Normally MD5(password) is
5392 used as a 128 bit RC4 key. In the modified case
5393 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5394 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5395 as the old Netscape_RSA functions except they have an additional
5396 'sgckey' parameter which uses the modified algorithm. Also added
5397 an -sgckey command line option to the rsa utility. Thanks to
5398 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5399 algorithm to openssl-dev.
5402 *) The evp_local.h macros were using 'c.##kname' which resulted in
5403 invalid expansion on some systems (SCO 5.0.5 for example).
5404 Corrected to 'c.kname'.
5405 [Phillip Porch <root@theporch.com>]
5407 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5408 a STACK of email addresses from a certificate or request, these look
5409 in the subject name and the subject alternative name extensions and
5410 omit any duplicate addresses.
5413 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5414 This makes DSA verification about 2 % faster.
5417 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5418 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5419 plus overhead for 1024 bit moduli).
5420 This makes exponentiations about 0.5 % faster for 1024 bit
5421 exponents (as measured by "openssl speed rsa2048").
5424 *) Rename memory handling macros to avoid conflicts with other
5426 Malloc => OPENSSL_malloc
5427 Malloc_locked => OPENSSL_malloc_locked
5428 Realloc => OPENSSL_realloc
5429 Free => OPENSSL_free
5432 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5433 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5436 *) CygWin32 support.
5437 [John Jarvie <jjarvie@newsguy.com>]
5439 *) The type-safe stack code has been rejigged. It is now only compiled
5440 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5441 by default all type-specific stack functions are "#define"d back to
5442 standard stack functions. This results in more streamlined output
5443 but retains the type-safety checking possibilities of the original
5447 *) The STACK code has been cleaned up, and certain type declarations
5448 that didn't make a lot of sense have been brought in line. This has
5449 also involved a cleanup of sorts in safestack.h to more correctly
5450 map type-safe stack functions onto their plain stack counterparts.
5451 This work has also resulted in a variety of "const"ifications of
5452 lots of the code, especially "_cmp" operations which should normally
5453 be prototyped with "const" parameters anyway.
5456 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5457 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5458 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5459 where all of 'md' is used each time the PRNG is used, but 'state'
5460 is used only indexed by a cyclic counter. As entropy may not be
5461 well distributed from the beginning, 'md' is important as a
5462 chaining variable. However, the output function chains only half
5463 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5464 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5465 in all of 'state' being rewritten, with the new values depending
5466 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5469 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5470 the handshake is continued after ssl_verify_cert_chain();
5471 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5472 can lead to 'unexplainable' connection aborts later.
5473 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5475 *) Major EVP API cipher revision.
5476 Add hooks for extra EVP features. This allows various cipher
5477 parameters to be set in the EVP interface. Support added for variable
5478 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5479 setting of RC2 and RC5 parameters.
5481 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5484 Remove lots of duplicated code from the EVP library. For example *every*
5485 cipher init() function handles the 'iv' in the same way according to the
5486 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5487 for CFB and OFB modes they zero ctx->num.
5489 New functionality allows removal of S/MIME code RC2 hack.
5491 Most of the routines have the same form and so can be declared in terms
5494 By shifting this to the top level EVP_CipherInit() it can be removed from
5495 all individual ciphers. If the cipher wants to handle IVs or keys
5496 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5499 Change lots of functions like EVP_EncryptUpdate() to now return a
5500 value: although software versions of the algorithms cannot fail
5501 any installed hardware versions can.
5504 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5505 this option is set, tolerate broken clients that send the negotiated
5506 protocol version number instead of the requested protocol version
5510 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5511 i.e. non-zero for export ciphersuites, zero otherwise.
5512 Previous versions had this flag inverted, inconsistent with
5513 rsa_tmp_cb (..._TMP_RSA_CB).
5514 [Bodo Moeller; problem reported by Amit Chopra]
5516 *) Add missing DSA library text string. Work around for some IIS
5517 key files with invalid SEQUENCE encoding.
5520 *) Add a document (doc/standards.txt) that list all kinds of standards
5521 and so on that are implemented in OpenSSL.
5524 *) Enhance c_rehash script. Old version would mishandle certificates
5525 with the same subject name hash and wouldn't handle CRLs at all.
5526 Added -fingerprint option to crl utility, to support new c_rehash
5530 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5533 *) Fix for SSL server purpose checking. Server checking was
5534 rejecting certificates which had extended key usage present
5535 but no ssl client purpose.
5536 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5538 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5539 is a little unclear about how a blank password is handled.
5540 Since the password in encoded as a BMPString with terminating
5541 double NULL a zero length password would end up as just the
5542 double NULL. However no password at all is different and is
5543 handled differently in the PKCS#12 key generation code. NS
5544 treats a blank password as zero length. MSIE treats it as no
5545 password on export: but it will try both on import. We now do
5546 the same: PKCS12_parse() tries zero length and no password if
5547 the password is set to "" or NULL (NULL is now a valid password:
5548 it wasn't before) as does the pkcs12 application.
5551 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5552 perror when PEM_read_bio_X509_REQ fails, the error message must
5553 be obtained from the error queue.
5556 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5557 it in ERR_remove_state if appropriate, and change ERR_get_state
5558 accordingly to avoid race conditions (this is necessary because
5559 thread_hash is no longer constant once set).
5562 *) Bugfix for linux-elf makefile.one.
5565 *) RSA_get_default_method() will now cause a default
5566 RSA_METHOD to be chosen if one doesn't exist already.
5567 Previously this was only set during a call to RSA_new()
5568 or RSA_new_method(NULL) meaning it was possible for
5569 RSA_get_default_method() to return NULL.
5572 *) Added native name translation to the existing DSO code
5573 that will convert (if the flag to do so is set) filenames
5574 that are sufficiently small and have no path information
5575 into a canonical native form. Eg. "blah" converted to
5576 "libblah.so" or "blah.dll" etc.
5579 *) New function ERR_error_string_n(e, buf, len) which is like
5580 ERR_error_string(e, buf), but writes at most 'len' bytes
5581 including the 0 terminator. For ERR_error_string_n, 'buf'
5583 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5585 *) CONF library reworked to become more general. A new CONF
5586 configuration file reader "class" is implemented as well as a
5587 new functions (NCONF_*, for "New CONF") to handle it. The now
5588 old CONF_* functions are still there, but are reimplemented to
5589 work in terms of the new functions. Also, a set of functions
5590 to handle the internal storage of the configuration data is
5591 provided to make it easier to write new configuration file
5592 reader "classes" (I can definitely see something reading a
5593 configuration file in XML format, for example), called _CONF_*,
5594 or "the configuration storage API"...
5596 The new configuration file reading functions are:
5598 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5599 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5601 NCONF_default, NCONF_WIN32
5603 NCONF_dump_fp, NCONF_dump_bio
5605 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5606 NCONF_new creates a new CONF object. This works in the same way
5607 as other interfaces in OpenSSL, like the BIO interface.
5608 NCONF_dump_* dump the internal storage of the configuration file,
5609 which is useful for debugging. All other functions take the same
5610 arguments as the old CONF_* functions wth the exception of the
5611 first that must be a `CONF *' instead of a `LHASH *'.
5613 To make it easer to use the new classes with the old CONF_* functions,
5614 the function CONF_set_default_method is provided.
5617 *) Add '-tls1' option to 'openssl ciphers', which was already
5618 mentioned in the documentation but had not been implemented.
5619 (This option is not yet really useful because even the additional
5620 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5623 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5624 OpenSSL-based applications) load shared libraries and bind to
5625 them in a portable way.
5626 [Geoff Thorpe, with contributions from Richard Levitte]
5628 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5630 *) Make sure _lrotl and _lrotr are only used with MSVC.
5632 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5633 (the default implementation of RAND_status).
5635 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5636 to '-clrext' (= clear extensions), as intended and documented.
5637 [Bodo Moeller; inconsistency pointed out by Michael Attili
5640 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5641 was larger than the MD block size.
5642 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5644 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5645 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5646 using the passed key: if the passed key was a private key the result
5647 of X509_print(), for example, would be to print out all the private key
5651 *) des_quad_cksum() byte order bug fix.
5652 [Ulf Möller, using the problem description in krb4-0.9.7, where
5653 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5655 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5657 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5659 *) For easily testing in shell scripts whether some command
5660 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5661 returns with exit code 0 iff no command of the given name is available.
5662 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5663 the output goes to stdout and nothing is printed to stderr.
5664 Additional arguments are always ignored.
5666 Since for each cipher there is a command of the same name,
5667 the 'no-cipher' compilation switches can be tested this way.
5669 ('openssl no-XXX' is not able to detect pseudo-commands such
5670 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5673 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5676 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5677 is set; it will be thrown away anyway because each handshake creates
5679 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5680 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5681 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5682 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5685 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5686 'Q' and 'R' lose their special meanings (quit/renegotiate).
5687 This is part of what -quiet does; unlike -quiet, -ign_eof
5688 does not suppress any output.
5691 *) Add compatibility options to the purpose and trust code. The
5692 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5693 accepts a certificate or CA, this was the previous behaviour,
5694 with all the associated security issues.
5696 X509_TRUST_COMPAT is the old trust behaviour: only and
5697 automatically trust self signed roots in certificate store. A
5698 new trust setting X509_TRUST_DEFAULT is used to specify that
5699 a purpose has no associated trust setting and it should instead
5700 use the value in the default purpose.
5703 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5704 and fix a memory leak.
5707 *) In util/mkerr.pl (which implements 'make errors'), preserve
5708 reason strings from the previous version of the .c file, as
5709 the default to have only downcase letters (and digits) in
5710 automatically generated reasons codes is not always appropriate.
5713 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5714 using strerror. Previously, ERR_reason_error_string() returned
5715 library names as reason strings for SYSerr; but SYSerr is a special
5716 case where small numbers are errno values, not library numbers.
5719 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5720 converts DSA parameters into DH parameters. (When creating parameters,
5721 DSA_generate_parameters is used.)
5724 *) Include 'length' (recommended exponent length) in C code generated
5725 by 'openssl dhparam -C'.
5728 *) The second argument to set_label in perlasm was already being used
5729 so couldn't be used as a "file scope" flag. Moved to third argument
5733 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5734 instead of RAND_bytes for encryption IVs and salts.
5737 *) Include RAND_status() into RAND_METHOD instead of implementing
5738 it only for md_rand.c Otherwise replacing the PRNG by calling
5739 RAND_set_rand_method would be impossible.
5742 *) Don't let DSA_generate_key() enter an infinite loop if the random
5743 number generation fails.
5746 *) New 'rand' application for creating pseudo-random output.
5749 *) Added configuration support for Linux/IA64
5750 [Rolf Haberrecker <rolf@suse.de>]
5752 *) Assembler module support for Mingw32.
5755 *) Shared library support for HPUX (in shlib/).
5756 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5758 *) Shared library support for Solaris gcc.
5759 [Lutz Behnke <behnke@trustcenter.de>]
5761 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5763 *) PKCS7_encrypt() was adding text MIME headers twice because they
5764 were added manually and by SMIME_crlf_copy().
5767 *) In bntest.c don't call BN_rand with zero bits argument.
5768 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5770 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5771 case was implemented. This caused BN_div_recp() to fail occasionally.
5774 *) Add an optional second argument to the set_label() in the perl
5775 assembly language builder. If this argument exists and is set
5776 to 1 it signals that the assembler should use a symbol whose
5777 scope is the entire file, not just the current function. This
5778 is needed with MASM which uses the format label:: for this scope.
5779 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5781 *) Change the ASN1 types so they are typedefs by default. Before
5782 almost all types were #define'd to ASN1_STRING which was causing
5783 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5787 *) Change names of new functions to the new get1/get0 naming
5788 convention: After 'get1', the caller owns a reference count
5789 and has to call ..._free; 'get0' returns a pointer to some
5790 data structure without incrementing reference counters.
5791 (Some of the existing 'get' functions increment a reference
5792 counter, some don't.)
5793 Similarly, 'set1' and 'add1' functions increase reference
5794 counters or duplicate objects.
5797 *) Allow for the possibility of temp RSA key generation failure:
5798 the code used to assume it always worked and crashed on failure.
5801 *) Fix potential buffer overrun problem in BIO_printf().
5802 [Ulf Möller, using public domain code by Patrick Powell; problem
5803 pointed out by David Sacerdote <das33@cornell.edu>]
5805 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5806 RAND_egd() and RAND_status(). In the command line application,
5807 the EGD socket can be specified like a seed file using RANDFILE
5811 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5812 Some CAs (e.g. Verisign) distribute certificates in this form.
5815 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5816 list to exclude them. This means that no special compilation option
5817 is needed to use anonymous DH: it just needs to be included in the
5821 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5822 EVP_MD_type. The old functionality is available in a new macro called
5823 EVP_MD_md(). Change code that uses it and update docs.
5826 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5827 where the 'void *' argument is replaced by a function pointer argument.
5828 Previously 'void *' was abused to point to functions, which works on
5829 many platforms, but is not correct. As these functions are usually
5830 called by macros defined in OpenSSL header files, most source code
5831 should work without changes.
5834 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5835 sections with information on -D... compiler switches used for
5836 compiling the library so that applications can see them. To enable
5837 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5838 must be defined. E.g.,
5839 #define OPENSSL_ALGORITHM_DEFINES
5840 #include <openssl/opensslconf.h>
5841 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5842 [Richard Levitte, Ulf and Bodo Möller]
5844 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5848 *) Change the 'other' type in certificate aux info to a STACK_OF
5849 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5850 the required ASN1 format: arbitrary types determined by an OID.
5853 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5854 argument to 'req'. This is not because the function is newer or
5855 better than others it just uses the work 'NEW' in the certificate
5856 request header lines. Some software needs this.
5859 *) Reorganise password command line arguments: now passwords can be
5860 obtained from various sources. Delete the PEM_cb function and make
5861 it the default behaviour: i.e. if the callback is NULL and the
5862 usrdata argument is not NULL interpret it as a null terminated pass
5863 phrase. If usrdata and the callback are NULL then the pass phrase
5864 is prompted for as usual.
5867 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5868 the support is automatically enabled. The resulting binaries will
5869 autodetect the card and use it if present.
5870 [Ben Laurie and Compaq Inc.]
5872 *) Work around for Netscape hang bug. This sends certificate request
5873 and server done in one record. Since this is perfectly legal in the
5874 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5875 the bugs/SSLv3 entry for more info.
5878 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5881 *) Add -rand argument to smime and pkcs12 applications and read/write
5885 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5888 *) Add command line password options to the remaining applications.
5891 *) Bug fix for BN_div_recp() for numerators with an even number of
5895 *) More tests in bntest.c, and changed test_bn output.
5898 *) ./config recognizes MacOS X now.
5901 *) Bug fix for BN_div() when the first words of num and divsor are
5902 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5905 *) Add support for various broken PKCS#8 formats, and command line
5906 options to produce them.
5909 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5910 get temporary BIGNUMs from a BN_CTX.
5913 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5917 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5918 include a #define from the old name to the new. The original intent
5919 was that statically linked binaries could for example just call
5920 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5921 link with digests. This never worked becayse SSLeay_add_all_digests()
5922 and SSLeay_add_all_ciphers() were in the same source file so calling
5923 one would link with the other. They are now in separate source files.
5926 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5929 *) Use a less unusual form of the Miller-Rabin primality test (it used
5930 a binary algorithm for exponentiation integrated into the Miller-Rabin
5931 loop, our standard modexp algorithms are faster).
5934 *) Support for the EBCDIC character set completed.
5935 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5937 *) Source code cleanups: use const where appropriate, eliminate casts,
5938 use void * instead of char * in lhash.
5941 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5942 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5943 this the server could overwrite ephemeral keys that the client
5947 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5948 using 50 iterations of the Rabin-Miller test.
5950 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5951 iterations of the Rabin-Miller test as required by the appendix
5952 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5953 As BN_is_prime_fasttest includes trial division, DSA parameter
5954 generation becomes much faster.
5956 This implies a change for the callback functions in DSA_is_prime
5957 and DSA_generate_parameters: The callback function is called once
5958 for each positive witness in the Rabin-Miller test, not just
5959 occasionally in the inner loop; and the parameters to the
5960 callback function now provide an iteration count for the outer
5961 loop rather than for the current invocation of the inner loop.
5962 DSA_generate_parameters additionally can call the callback
5963 function with an 'iteration count' of -1, meaning that a
5964 candidate has passed the trial division test (when q is generated
5965 from an application-provided seed, trial division is skipped).
5968 *) New function BN_is_prime_fasttest that optionally does trial
5969 division before starting the Rabin-Miller test and has
5970 an additional BN_CTX * argument (whereas BN_is_prime always
5971 has to allocate at least one BN_CTX).
5972 'callback(1, -1, cb_arg)' is called when a number has passed the
5973 trial division stage.
5976 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5980 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5983 *) New function BN_pseudo_rand().
5986 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5987 bignum version of BN_from_montgomery() with the working code from
5988 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5992 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5993 made it impossible to use the same SSL_SESSION data structure in
5994 SSL2 clients in multiple threads.
5997 *) The return value of RAND_load_file() no longer counts bytes obtained
5998 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5999 to seed the PRNG (previously an explicit byte count was required).
6000 [Ulf Möller, Bodo Möller]
6002 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6003 used (char *) instead of (void *) and had casts all over the place.
6006 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6009 *) Retain source code compatibility for BN_prime_checks macro:
6010 BN_is_prime(..., BN_prime_checks, ...) now uses
6011 BN_prime_checks_for_size to determine the appropriate number of
6012 Rabin-Miller iterations.
6015 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6016 DH_CHECK_P_NOT_SAFE_PRIME.
6017 (Check if this is true? OpenPGP calls them "strong".)
6020 *) Merge the functionality of "dh" and "gendh" programs into a new program
6021 "dhparam". The old programs are retained for now but will handle DH keys
6022 (instead of parameters) in future.
6025 *) Make the ciphers, s_server and s_client programs check the return values
6026 when a new cipher list is set.
6029 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6030 ciphers. Before when the 56bit ciphers were enabled the sorting was
6033 The syntax for the cipher sorting has been extended to support sorting by
6034 cipher-strength (using the strength_bits hard coded in the tables).
6035 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6037 Fix a bug in the cipher-command parser: when supplying a cipher command
6038 string with an "undefined" symbol (neither command nor alphanumeric
6039 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6040 an error is flagged.
6042 Due to the strength-sorting extension, the code of the
6043 ssl_create_cipher_list() function was completely rearranged. I hope that
6044 the readability was also increased :-)
6045 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6047 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6048 for the first serial number and places 2 in the serial number file. This
6049 avoids problems when the root CA is created with serial number zero and
6050 the first user certificate has the same issuer name and serial number
6054 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6055 the new code. Add documentation for this stuff.
6058 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6059 X509_*() to X509at_*() on the grounds that they don't handle X509
6060 structures and behave in an analagous way to the X509v3 functions:
6061 they shouldn't be called directly but wrapper functions should be used
6064 So we also now have some wrapper functions that call the X509at functions
6065 when passed certificate requests. (TO DO: similar things can be done with
6066 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6067 things. Some of these need some d2i or i2d and print functionality
6068 because they handle more complex structures.)
6071 *) Add missing #ifndefs that caused missing symbols when building libssl
6072 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6073 NO_RSA in ssl/s2*.c.
6074 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6076 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6077 has a return value which indicates the quality of the random data
6078 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6079 error queue. New function RAND_pseudo_bytes() generates output that is
6080 guaranteed to be unique but not unpredictable. RAND_add is like
6081 RAND_seed, but takes an extra argument for an entropy estimate
6082 (RAND_seed always assumes full entropy).
6085 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6086 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6087 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6088 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6089 false-positive rate of at most 2^-80 for random input.
6092 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6095 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6096 in the 0.9.5 release), this returns the chain
6097 from an X509_CTX structure with a dup of the stack and all
6098 the X509 reference counts upped: so the stack will exist
6099 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6102 Also make SSL_SESSION_print() print out the verify return
6106 *) Add manpage for the pkcs12 command. Also change the default
6107 behaviour so MAC iteration counts are used unless the new
6108 -nomaciter option is used. This improves file security and
6109 only older versions of MSIE (4.0 for example) need it.
6112 *) Honor the no-xxx Configure options when creating .DEF files.
6115 *) Add PKCS#10 attributes to field table: challengePassword,
6116 unstructuredName and unstructuredAddress. These are taken from
6117 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6118 international characters are used.
6120 More changes to X509_ATTRIBUTE code: allow the setting of types
6121 based on strings. Remove the 'loc' parameter when adding
6122 attributes because these will be a SET OF encoding which is sorted
6126 *) Initial changes to the 'req' utility to allow request generation
6127 automation. This will allow an application to just generate a template
6128 file containing all the field values and have req construct the
6131 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6132 used all over the place including certificate requests and PKCS#7
6133 structures. They are currently handled manually where necessary with
6134 some primitive wrappers for PKCS#7. The new functions behave in a
6135 manner analogous to the X509 extension functions: they allow
6136 attributes to be looked up by NID and added.
6138 Later something similar to the X509V3 code would be desirable to
6139 automatically handle the encoding, decoding and printing of the
6140 more complex types. The string types like challengePassword can
6141 be handled by the string table functions.
6143 Also modified the multi byte string table handling. Now there is
6144 a 'global mask' which masks out certain types. The table itself
6145 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6146 is useful when for example there is only one permissible type
6147 (as in countryName) and using the mask might result in no valid
6151 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6152 SSL_get_peer_finished to allow applications to obtain the latest
6153 Finished messages sent to the peer or expected from the peer,
6154 respectively. (SSL_get_peer_finished is usually the Finished message
6155 actually received from the peer, otherwise the protocol will be aborted.)
6157 As the Finished message are message digests of the complete handshake
6158 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6159 be used for external authentication procedures when the authentication
6160 provided by SSL/TLS is not desired or is not enough.
6163 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6164 the host supports BWX extension and if Compaq C is present on the
6165 $PATH. Just exploiting of the BWX extension results in 20-30%
6166 performance kick for some algorithms, e.g. DES and RC4 to mention
6167 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6171 *) Add support for MS "fast SGC". This is arguably a violation of the
6172 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6173 weak crypto and after checking the certificate is SGC a second one
6174 with strong crypto. MS SGC stops the first handshake after receiving
6175 the server certificate message and sends a second client hello. Since
6176 a server will typically do all the time consuming operations before
6177 expecting any further messages from the client (server key exchange
6178 is the most expensive) there is little difference between the two.
6180 To get OpenSSL to support MS SGC we have to permit a second client
6181 hello message after we have sent server done. In addition we have to
6182 reset the MAC if we do get this second client hello.
6185 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6186 if a DER encoded private key is RSA or DSA traditional format. Changed
6187 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6188 format DER encoded private key. Newer code should use PKCS#8 format which
6189 has the key type encoded in the ASN1 structure. Added DER private key
6190 support to pkcs8 application.
6193 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6194 ciphersuites has been selected (as required by the SSL 3/TLS 1
6195 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6196 is set, we interpret this as a request to violate the specification
6197 (the worst that can happen is a handshake failure, and 'correct'
6198 behaviour would result in a handshake failure anyway).
6201 *) In SSL_CTX_add_session, take into account that there might be multiple
6202 SSL_SESSION structures with the same session ID (e.g. when two threads
6203 concurrently obtain them from an external cache).
6204 The internal cache can handle only one SSL_SESSION with a given ID,
6205 so if there's a conflict, we now throw out the old one to achieve
6209 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6210 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6211 some routines that use cipher OIDs: some ciphers do not have OIDs
6212 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6216 *) Simplify the trust setting structure and code. Now we just have
6217 two sequences of OIDs for trusted and rejected settings. These will
6218 typically have values the same as the extended key usage extension
6219 and any application specific purposes.
6221 The trust checking code now has a default behaviour: it will just
6222 check for an object with the same NID as the passed id. Functions can
6223 be provided to override either the default behaviour or the behaviour
6224 for a given id. SSL client, server and email already have functions
6225 in place for compatibility: they check the NID and also return "trusted"
6226 if the certificate is self signed.
6229 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6230 traditional format into an EVP_PKEY structure.
6233 *) Add a password callback function PEM_cb() which either prompts for
6234 a password if usr_data is NULL or otherwise assumes it is a null
6235 terminated password. Allow passwords to be passed on command line
6236 environment or config files in a few more utilities.
6239 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6240 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6241 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6242 Update documentation.
6245 *) Support for ASN1 "NULL" type. This could be handled before by using
6246 ASN1_TYPE but there wasn't any function that would try to read a NULL
6247 and produce an error if it couldn't. For compatibility we also have
6248 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6249 don't allocate anything because they don't need to.
6252 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6254 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6256 *) Rebuild of the memory allocation routines used by OpenSSL code and
6257 possibly others as well. The purpose is to make an interface that
6258 provide hooks so anyone can build a separate set of allocation and
6259 deallocation routines to be used by OpenSSL, for example memory
6260 pool implementations, or something else, which was previously hard
6261 since Malloc(), Realloc() and Free() were defined as macros having
6262 the values malloc, realloc and free, respectively (except for Win32
6263 compilations). The same is provided for memory debugging code.
6264 OpenSSL already comes with functionality to find memory leaks, but
6265 this gives people a chance to debug other memory problems.
6267 With these changes, a new set of functions and macros have appeared:
6269 CRYPTO_set_mem_debug_functions() [F]
6270 CRYPTO_get_mem_debug_functions() [F]
6271 CRYPTO_dbg_set_options() [F]
6272 CRYPTO_dbg_get_options() [F]
6273 CRYPTO_malloc_debug_init() [M]
6275 The memory debug functions are NULL by default, unless the library
6276 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6277 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6278 gives the standard debugging functions that come with OpenSSL) or
6279 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6280 provided by the library user) must be used. When the standard
6281 debugging functions are used, CRYPTO_dbg_set_options can be used to
6282 request additional information:
6283 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6284 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6286 Also, things like CRYPTO_set_mem_functions will always give the
6287 expected result (the new set of functions is used for allocation
6288 and deallocation) at all times, regardless of platform and compiler
6291 To finish it up, some functions that were never use in any other
6292 way than through macros have a new API and new semantic:
6295 CRYPTO_dbg_realloc()
6298 All macros of value have retained their old syntax.
6299 [Richard Levitte and Bodo Moeller]
6301 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6302 ordering of SMIMECapabilities wasn't in "strength order" and there
6303 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6307 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6308 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6309 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6311 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6312 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6313 functionality to handle multipart/signed properly) and a utility
6314 called 'smime' to call all this stuff. This is based on code I
6315 originally wrote for Celo who have kindly allowed it to be
6316 included in OpenSSL.
6319 *) Add variants des_set_key_checked and des_set_key_unchecked of
6320 des_set_key (aka des_key_sched). Global variable des_check_key
6321 decides which of these is called by des_set_key; this way
6322 des_check_key behaves as it always did, but applications and
6323 the library itself, which was buggy for des_check_key == 1,
6324 have a cleaner way to pick the version they need.
6327 *) New function PKCS12_newpass() which changes the password of a
6331 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6332 dynamic mix. In both cases the ids can be used as an index into the
6333 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6334 functions so they accept a list of the field values and the
6335 application doesn't need to directly manipulate the X509_TRUST
6339 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6343 *) Modify the way the V3 extension code looks up extensions. This now
6344 works in a similar way to the object code: we have some "standard"
6345 extensions in a static table which is searched with OBJ_bsearch()
6346 and the application can add dynamic ones if needed. The file
6347 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6348 updated whenever a new extension is added to the core code and kept
6349 in ext_nid order. There is a simple program 'tabtest.c' which checks
6350 this. New extensions are not added too often so this file can readily
6351 be maintained manually.
6353 There are two big advantages in doing things this way. The extensions
6354 can be looked up immediately and no longer need to be "added" using
6355 X509V3_add_standard_extensions(): this function now does nothing.
6356 [Side note: I get *lots* of email saying the extension code doesn't
6357 work because people forget to call this function]
6358 Also no dynamic allocation is done unless new extensions are added:
6359 so if we don't add custom extensions there is no need to call
6360 X509V3_EXT_cleanup().
6363 *) Modify enc utility's salting as follows: make salting the default. Add a
6364 magic header, so unsalted files fail gracefully instead of just decrypting
6365 to garbage. This is because not salting is a big security hole, so people
6366 should be discouraged from doing it.
6369 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6370 digest to be passed on the command line but it only used this
6371 parameter when signing a certificate. Modified so all relevant
6372 operations are affected by the digest parameter including the
6373 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6374 DSA key was used because it didn't fix the digest.
6377 *) Initial certificate chain verify code. Currently tests the untrusted
6378 certificates for consistency with the verify purpose (which is set
6379 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6381 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6382 this is because it will reject chains with invalid extensions whereas
6383 every previous version of OpenSSL and SSLeay made no checks at all.
6385 Trust code: checks the root CA for the relevant trust settings. Trust
6386 settings have an initial value consistent with the verify purpose: e.g.
6387 if the verify purpose is for SSL client use it expects the CA to be
6388 trusted for SSL client use. However the default value can be changed to
6389 permit custom trust settings: one example of this would be to only trust
6390 certificates from a specific "secure" set of CAs.
6392 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6393 which should be used for version portability: especially since the
6394 verify structure is likely to change more often now.
6396 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6397 to set them. If not set then assume SSL clients will verify SSL servers
6400 Two new options to the verify program: -untrusted allows a set of
6401 untrusted certificates to be passed in and -purpose which sets the
6402 intended purpose of the certificate. If a purpose is set then the
6403 new chain verify code is used to check extension consistency.
6406 *) Support for the authority information access extension.
6409 *) Modify RSA and DSA PEM read routines to transparently handle
6410 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6411 public keys in a format compatible with certificate
6412 SubjectPublicKeyInfo structures. Unfortunately there were already
6413 functions called *_PublicKey_* which used various odd formats so
6414 these are retained for compatibility: however the DSA variants were
6415 never in a public release so they have been deleted. Changed dsa/rsa
6416 utilities to handle the new format: note no releases ever handled public
6417 keys so we should be OK.
6419 The primary motivation for this change is to avoid the same fiasco
6420 that dogs private keys: there are several incompatible private key
6421 formats some of which are standard and some OpenSSL specific and
6422 require various evil hacks to allow partial transparent handling and
6423 even then it doesn't work with DER formats. Given the option anything
6424 other than PKCS#8 should be dumped: but the other formats have to
6425 stay in the name of compatibility.
6427 With public keys and the benefit of hindsight one standard format
6428 is used which works with EVP_PKEY, RSA or DSA structures: though
6429 it clearly returns an error if you try to read the wrong kind of key.
6431 Added a -pubkey option to the 'x509' utility to output the public key.
6432 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6433 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6434 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6435 that do the same as the EVP_PKEY_assign_*() except they up the
6436 reference count of the added key (they don't "swallow" the
6440 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6441 CRLs would fail if the file contained no certificates or no CRLs:
6442 added a new function to read in both types and return the number
6443 read: this means that if none are read it will be an error. The
6444 DER versions of the certificate and CRL reader would always fail
6445 because it isn't possible to mix certificates and CRLs in DER format
6446 without choking one or the other routine. Changed this to just read
6447 a certificate: this is the best we can do. Also modified the code
6448 in apps/verify.c to take notice of return codes: it was previously
6449 attempting to read in certificates from NULL pointers and ignoring
6450 any errors: this is one reason why the cert and CRL reader seemed
6451 to work. It doesn't check return codes from the default certificate
6452 routines: these may well fail if the certificates aren't installed.
6455 *) Code to support otherName option in GeneralName.
6458 *) First update to verify code. Change the verify utility
6459 so it warns if it is passed a self signed certificate:
6460 for consistency with the normal behaviour. X509_verify
6461 has been modified to it will now verify a self signed
6462 certificate if *exactly* the same certificate appears
6463 in the store: it was previously impossible to trust a
6464 single self signed certificate. This means that:
6465 openssl verify ss.pem
6466 now gives a warning about a self signed certificate but
6467 openssl verify -CAfile ss.pem ss.pem
6471 *) For servers, store verify_result in SSL_SESSION data structure
6472 (and add it to external session representation).
6473 This is needed when client certificate verifications fails,
6474 but an application-provided verification callback (set by
6475 SSL_CTX_set_cert_verify_callback) allows accepting the session
6476 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6477 but returns 1): When the session is reused, we have to set
6478 ssl->verify_result to the appropriate error code to avoid
6480 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6482 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6483 case in PKCS7_dataInit() where the signed PKCS7 structure
6484 didn't contain any existing data because it was being created.
6485 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6487 *) Add a salt to the key derivation routines in enc.c. This
6488 forms the first 8 bytes of the encrypted file. Also add a
6489 -S option to allow a salt to be input on the command line.
6492 *) New function X509_cmp(). Oddly enough there wasn't a function
6493 to compare two certificates. We do this by working out the SHA1
6494 hash and comparing that. X509_cmp() will be needed by the trust
6498 *) SSL_get1_session() is like SSL_get_session(), but increments
6499 the reference count in the SSL_SESSION returned.
6500 [Geoff Thorpe <geoff@eu.c2.net>]
6502 *) Fix for 'req': it was adding a null to request attributes.
6503 Also change the X509_LOOKUP and X509_INFO code to handle
6504 certificate auxiliary information.
6507 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6511 *) Add the possibility to add extra information to the memory leak
6512 detecting output, to form tracebacks, showing from where each
6513 allocation was originated: CRYPTO_push_info("constant string") adds
6514 the string plus current file name and line number to a per-thread
6515 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6516 is like calling CYRPTO_pop_info() until the stack is empty.
6517 Also updated memory leak detection code to be multi-thread-safe.
6520 *) Add options -text and -noout to pkcs7 utility and delete the
6521 encryption options which never did anything. Update docs.
6524 *) Add options to some of the utilities to allow the pass phrase
6525 to be included on either the command line (not recommended on
6526 OSes like Unix) or read from the environment. Update the
6527 manpages and fix a few bugs.
6530 *) Add a few manpages for some of the openssl commands.
6533 *) Fix the -revoke option in ca. It was freeing up memory twice,
6534 leaking and not finding already revoked certificates.
6537 *) Extensive changes to support certificate auxiliary information.
6538 This involves the use of X509_CERT_AUX structure and X509_AUX
6539 functions. An X509_AUX function such as PEM_read_X509_AUX()
6540 can still read in a certificate file in the usual way but it
6541 will also read in any additional "auxiliary information". By
6542 doing things this way a fair degree of compatibility can be
6543 retained: existing certificates can have this information added
6544 using the new 'x509' options.
6546 Current auxiliary information includes an "alias" and some trust
6547 settings. The trust settings will ultimately be used in enhanced
6548 certificate chain verification routines: currently a certificate
6549 can only be trusted if it is self signed and then it is trusted
6553 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6554 The problem was that one of the replacement routines had not been working
6555 since SSLeay releases. For now the offending routine has been replaced
6556 with non-optimised assembler. Even so, this now gives around 95%
6557 performance improvement for 1024 bit RSA signs.
6560 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6561 handling. Most clients have the effective key size in bits equal to
6562 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6563 A few however don't do this and instead use the size of the decrypted key
6564 to determine the RC2 key length and the AlgorithmIdentifier to determine
6565 the effective key length. In this case the effective key length can still
6566 be 40 bits but the key length can be 168 bits for example. This is fixed
6567 by manually forcing an RC2 key into the EVP_PKEY structure because the
6568 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6569 the key length and effective key length are equal.
6572 *) Add a bunch of functions that should simplify the creation of
6573 X509_NAME structures. Now you should be able to do:
6574 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6575 and have it automatically work out the correct field type and fill in
6576 the structures. The more adventurous can try:
6577 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6578 and it will (hopefully) work out the correct multibyte encoding.
6581 *) Change the 'req' utility to use the new field handling and multibyte
6582 copy routines. Before the DN field creation was handled in an ad hoc
6583 way in req, ca, and x509 which was rather broken and didn't support
6584 BMPStrings or UTF8Strings. Since some software doesn't implement
6585 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6586 using the dirstring_type option. See the new comment in the default
6587 openssl.cnf for more info.
6590 *) Make crypto/rand/md_rand.c more robust:
6591 - Assure unique random numbers after fork().
6592 - Make sure that concurrent threads access the global counter and
6593 md serializably so that we never lose entropy in them
6594 or use exactly the same state in multiple threads.
6595 Access to the large state is not always serializable because
6596 the additional locking could be a performance killer, and
6597 md should be large enough anyway.
6600 *) New file apps/app_rand.c with commonly needed functionality
6601 for handling the random seed file.
6603 Use the random seed file in some applications that previously did not:
6605 dsaparam -genkey (which also ignored its '-rand' option),
6608 x509 (when signing).
6609 Except on systems with /dev/urandom, it is crucial to have a random
6610 seed file at least for key creation, DSA signing, and for DH exchanges;
6611 for RSA signatures we could do without one.
6613 gendh and gendsa (unlike genrsa) used to read only the first byte
6614 of each file listed in the '-rand' option. The function as previously
6615 found in genrsa is now in app_rand.c and is used by all programs
6616 that support '-rand'.
6619 *) In RAND_write_file, use mode 0600 for creating files;
6620 don't just chmod when it may be too late.
6623 *) Report an error from X509_STORE_load_locations
6624 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6627 *) New function ASN1_mbstring_copy() this copies a string in either
6628 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6629 into an ASN1_STRING type. A mask of permissible types is passed
6630 and it chooses the "minimal" type to use or an error if not type
6634 *) Add function equivalents to the various macros in asn1.h. The old
6635 macros are retained with an M_ prefix. Code inside the library can
6636 use the M_ macros. External code (including the openssl utility)
6637 should *NOT* in order to be "shared library friendly".
6640 *) Add various functions that can check a certificate's extensions
6641 to see if it usable for various purposes such as SSL client,
6642 server or S/MIME and CAs of these types. This is currently
6643 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6644 verification. Also added a -purpose flag to x509 utility to
6645 print out all the purposes.
6648 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6652 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6653 for, obtain and decode and extension and obtain its critical flag.
6654 This allows all the necessary extension code to be handled in a
6655 single function call.
6658 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6659 platforms. See crypto/rc4/rc4_enc.c for further details.
6662 *) New -noout option to asn1parse. This causes no output to be produced
6663 its main use is when combined with -strparse and -out to extract data
6664 from a file (which may not be in ASN.1 format).
6667 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6668 when producing the local key id.
6669 [Richard Levitte <levitte@stacken.kth.se>]
6671 *) New option -dhparam in s_server. This allows a DH parameter file to be
6672 stated explicitly. If it is not stated then it tries the first server
6673 certificate file. The previous behaviour hard coded the filename
6677 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6678 a public key to be input or output. For example:
6679 openssl rsa -in key.pem -pubout -out pubkey.pem
6680 Also added necessary DSA public key functions to handle this.
6683 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6684 in the message. This was handled by allowing
6685 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6686 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6688 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6689 to the end of the strings whereas this didn't. This would cause problems
6690 if strings read with d2i_ASN1_bytes() were later modified.
6691 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6693 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6694 data and it contains EOF it will end up returning an error. This is
6695 caused by input 46 bytes long. The cause is due to the way base64
6696 BIOs find the start of base64 encoded data. They do this by trying a
6697 trial decode on each line until they find one that works. When they
6698 do a flag is set and it starts again knowing it can pass all the
6699 data directly through the decoder. Unfortunately it doesn't reset
6700 the context it uses. This means that if EOF is reached an attempt
6701 is made to pass two EOFs through the context and this causes the
6702 resulting error. This can also cause other problems as well. As is
6703 usual with these problems it takes *ages* to find and the fix is
6704 trivial: move one line.
6705 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6707 *) Ugly workaround to get s_client and s_server working under Windows. The
6708 old code wouldn't work because it needed to select() on sockets and the
6709 tty (for keypresses and to see if data could be written). Win32 only
6710 supports select() on sockets so we select() with a 1s timeout on the
6711 sockets and then see if any characters are waiting to be read, if none
6712 are present then we retry, we also assume we can always write data to
6713 the tty. This isn't nice because the code then blocks until we've
6714 received a complete line of data and it is effectively polling the
6715 keyboard at 1s intervals: however it's quite a bit better than not
6716 working at all :-) A dedicated Windows application might handle this
6717 with an event loop for example.
6720 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6721 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6722 will be called when RSA_sign() and RSA_verify() are used. This is useful
6723 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6724 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6725 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6726 This necessitated the support of an extra signature type NID_md5_sha1
6727 for SSL signatures and modifications to the SSL library to use it instead
6728 of calling RSA_public_decrypt() and RSA_private_encrypt().
6731 *) Add new -verify -CAfile and -CApath options to the crl program, these
6732 will lookup a CRL issuers certificate and verify the signature in a
6733 similar way to the verify program. Tidy up the crl program so it
6734 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6735 less strict. It will now permit CRL extensions even if it is not
6736 a V2 CRL: this will allow it to tolerate some broken CRLs.
6739 *) Initialize all non-automatic variables each time one of the openssl
6740 sub-programs is started (this is necessary as they may be started
6741 multiple times from the "OpenSSL>" prompt).
6742 [Lennart Bang, Bodo Moeller]
6744 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6745 removing all other RSA functionality (this is what NO_RSA does). This
6746 is so (for example) those in the US can disable those operations covered
6747 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6751 *) Non-copying interface to BIO pairs.
6752 (still largely untested)
6755 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6756 ASCII string. This was handled independently in various places before.
6759 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6760 UTF8 strings a character at a time.
6763 *) Use client_version from client hello to select the protocol
6764 (s23_srvr.c) and for RSA client key exchange verification
6765 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6768 *) Add various utility functions to handle SPKACs, these were previously
6769 handled by poking round in the structure internals. Added new function
6770 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6771 print, verify and generate SPKACs. Based on an original idea from
6772 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6775 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6778 *) Allow the config file extension section to be overwritten on the
6779 command line. Based on an original idea from Massimiliano Pala
6780 <madwolf@comune.modena.it>. The new option is called -extensions
6781 and can be applied to ca, req and x509. Also -reqexts to override
6782 the request extensions in req and -crlexts to override the crl extensions
6786 *) Add new feature to the SPKAC handling in ca. Now you can include
6787 the same field multiple times by preceding it by "XXXX." for example:
6790 this is the same syntax as used in the req config file.
6793 *) Allow certificate extensions to be added to certificate requests. These
6794 are specified in a 'req_extensions' option of the req section of the
6795 config file. They can be printed out with the -text option to req but
6796 are otherwise ignored at present.
6799 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6800 data read consists of only the final block it would not decrypted because
6801 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6802 A misplaced 'break' also meant the decrypted final block might not be
6803 copied until the next read.
6806 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6807 a few extra parameters to the DH structure: these will be useful if
6808 for example we want the value of 'q' or implement X9.42 DH.
6811 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6812 provides hooks that allow the default DSA functions or functions on a
6813 "per key" basis to be replaced. This allows hardware acceleration and
6814 hardware key storage to be handled without major modification to the
6815 library. Also added low level modexp hooks and CRYPTO_EX structure and
6816 associated functions.
6819 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6820 as "read only": it can't be written to and the buffer it points to will
6821 not be freed. Reading from a read only BIO is much more efficient than
6822 a normal memory BIO. This was added because there are several times when
6823 an area of memory needs to be read from a BIO. The previous method was
6824 to create a memory BIO and write the data to it, this results in two
6825 copies of the data and an O(n^2) reading algorithm. There is a new
6826 function BIO_new_mem_buf() which creates a read only memory BIO from
6827 an area of memory. Also modified the PKCS#7 routines to use read only
6831 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6832 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6833 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6834 but a retry condition occured while trying to read the rest.
6837 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6838 NID_pkcs7_encrypted by default: this was wrong since this should almost
6839 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6840 the encrypted data type: this is a more sensible place to put it and it
6841 allows the PKCS#12 code to be tidied up that duplicated this
6845 *) Changed obj_dat.pl script so it takes its input and output files on
6846 the command line. This should avoid shell escape redirection problems
6850 *) Initial support for certificate extension requests, these are included
6851 in things like Xenroll certificate requests. Included functions to allow
6852 extensions to be obtained and added.
6855 *) -crlf option to s_client and s_server for sending newlines as
6856 CRLF (as required by many protocols).
6859 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6861 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6862 [Ralf S. Engelschall]
6864 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6865 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6867 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6871 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6872 DH parameters/keys (q is lost during that conversion, but the resulting
6873 DH parameters contain its length).
6875 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6876 much faster than DH_generate_parameters (which creates parameters
6877 where p = 2*q + 1), and also the smaller q makes DH computations
6878 much more efficient (160-bit exponentiation instead of 1024-bit
6879 exponentiation); so this provides a convenient way to support DHE
6880 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6881 utter importance to use
6882 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6884 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6885 when such DH parameters are used, because otherwise small subgroup
6886 attacks may become possible!
6889 *) Avoid memory leak in i2d_DHparams.
6892 *) Allow the -k option to be used more than once in the enc program:
6893 this allows the same encrypted message to be read by multiple recipients.
6896 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6897 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6898 it will always use the numerical form of the OID, even if it has a short
6902 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6903 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6904 otherwise bn_mod_exp was called. In the case of hardware keys for example
6905 no private key components need be present and it might store extra data
6906 in the RSA structure, which cannot be accessed from bn_mod_exp.
6907 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6908 private key operations.
6911 *) Added support for SPARC Linux.
6914 *) pem_password_cb function type incompatibly changed from
6915 typedef int pem_password_cb(char *buf, int size, int rwflag);
6917 ....(char *buf, int size, int rwflag, void *userdata);
6918 so that applications can pass data to their callbacks:
6919 The PEM[_ASN1]_{read,write}... functions and macros now take an
6920 additional void * argument, which is just handed through whenever
6921 the password callback is called.
6922 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6924 New function SSL_CTX_set_default_passwd_cb_userdata.
6926 Compatibility note: As many C implementations push function arguments
6927 onto the stack in reverse order, the new library version is likely to
6928 interoperate with programs that have been compiled with the old
6929 pem_password_cb definition (PEM_whatever takes some data that
6930 happens to be on the stack as its last argument, and the callback
6931 just ignores this garbage); but there is no guarantee whatsoever that
6934 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6935 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6936 problems not only on Windows, but also on some Unix platforms.
6937 To avoid problematic command lines, these definitions are now in an
6938 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6939 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6942 *) MIPS III/IV assembler module is reimplemented.
6945 *) More DES library cleanups: remove references to srand/rand and
6946 delete an unused file.
6949 *) Add support for the the free Netwide assembler (NASM) under Win32,
6950 since not many people have MASM (ml) and it can be hard to obtain.
6951 This is currently experimental but it seems to work OK and pass all
6952 the tests. Check out INSTALL.W32 for info.
6955 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6956 without temporary keys kept an extra copy of the server key,
6957 and connections with temporary keys did not free everything in case
6961 *) New function RSA_check_key and new openssl rsa option -check
6962 for verifying the consistency of RSA keys.
6963 [Ulf Moeller, Bodo Moeller]
6965 *) Various changes to make Win32 compile work:
6966 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6967 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6968 comparison" warnings.
6969 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6972 *) Add a debugging option to PKCS#5 v2 key generation function: when
6973 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6974 derived keys are printed to stderr.
6977 *) Copy the flags in ASN1_STRING_dup().
6978 [Roman E. Pavlov <pre@mo.msk.ru>]
6980 *) The x509 application mishandled signing requests containing DSA
6981 keys when the signing key was also DSA and the parameters didn't match.
6983 It was supposed to omit the parameters when they matched the signing key:
6984 the verifying software was then supposed to automatically use the CA's
6985 parameters if they were absent from the end user certificate.
6987 Omitting parameters is no longer recommended. The test was also
6988 the wrong way round! This was probably due to unusual behaviour in
6989 EVP_cmp_parameters() which returns 1 if the parameters match.
6990 This meant that parameters were omitted when they *didn't* match and
6991 the certificate was useless. Certificates signed with 'ca' didn't have
6993 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6995 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6996 The interface is as follows:
6997 Applications can use
6998 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6999 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7000 "off" is now the default.
7001 The library internally uses
7002 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7003 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7004 to disable memory-checking temporarily.
7006 Some inconsistent states that previously were possible (and were
7007 even the default) are now avoided.
7009 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7010 with each memory chunk allocated; this is occasionally more helpful
7011 than just having a counter.
7013 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7015 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7019 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7020 which largely parallels "options", but is for changing API behaviour,
7021 whereas "options" are about protocol behaviour.
7022 Initial "mode" flags are:
7024 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7025 a single record has been written.
7026 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7027 retries use the same buffer location.
7028 (But all of the contents must be
7032 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7035 *) Fix problems with no-hmac etc.
7036 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7038 *) New functions RSA_get_default_method(), RSA_set_method() and
7039 RSA_get_method(). These allows replacement of RSA_METHODs without having
7040 to mess around with the internals of an RSA structure.
7043 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7044 Also really enable memory leak checks in openssl.c and in some
7046 [Chad C. Mulligan, Bodo Moeller]
7048 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7049 up the length of negative integers. This has now been simplified to just
7050 store the length when it is first determined and use it later, rather
7051 than trying to keep track of where data is copied and updating it to
7053 [Steve Henson, reported by Brien Wheeler
7054 <bwheeler@authentica-security.com>]
7056 *) Add a new function PKCS7_signatureVerify. This allows the verification
7057 of a PKCS#7 signature but with the signing certificate passed to the
7058 function itself. This contrasts with PKCS7_dataVerify which assumes the
7059 certificate is present in the PKCS#7 structure. This isn't always the
7060 case: certificates can be omitted from a PKCS#7 structure and be
7061 distributed by "out of band" means (such as a certificate database).
7064 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7065 function prototypes in pem.h, also change util/mkdef.pl to add the
7066 necessary function names.
7069 *) mk1mf.pl (used by Windows builds) did not properly read the
7070 options set by Configure in the top level Makefile, and Configure
7071 was not even able to write more than one option correctly.
7072 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7075 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7076 file to be loaded from a BIO or FILE pointer. The BIO version will
7077 for example allow memory BIOs to contain config info.
7080 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7081 Whoever hopes to achieve shared-library compatibility across versions
7082 must use this, not the compile-time macro.
7083 (Exercise 0.9.4: Which is the minimum library version required by
7085 Note: All this applies only to multi-threaded programs, others don't
7089 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7090 through a BIO pair triggered the default case, i.e.
7091 SSLerr(...,SSL_R_UNKNOWN_STATE).
7094 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7095 can use the SSL library even if none of the specific BIOs is
7099 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7100 for the encoded length.
7101 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7103 *) Add initial documentation of the X509V3 functions.
7106 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7107 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7108 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7109 secure PKCS#8 private key format with a high iteration count.
7112 *) Fix determination of Perl interpreter: A perl or perl5
7113 _directory_ in $PATH was also accepted as the interpreter.
7114 [Ralf S. Engelschall]
7116 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7117 wrong with it but it was very old and did things like calling
7118 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7122 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7123 to use the new extension code.
7126 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7127 with macros. This should make it easier to change their form, add extra
7128 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7132 *) Add to configuration table a new entry that can specify an alternative
7133 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7134 according to Mark Crispin <MRC@Panda.COM>.
7138 *) DES CBC did not update the IV. Weird.
7141 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7142 Changing the behaviour of the former might break existing programs --
7143 where IV updating is needed, des_ncbc_encrypt can be used.
7146 *) When bntest is run from "make test" it drives bc to check its
7147 calculations, as well as internally checking them. If an internal check
7148 fails, it needs to cause bc to give a non-zero result or make test carries
7149 on without noticing the failure. Fixed.
7152 *) DES library cleanups.
7155 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7156 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7157 ciphers. NOTE: although the key derivation function has been verified
7158 against some published test vectors it has not been extensively tested
7159 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7163 *) Instead of "mkdir -p", which is not fully portable, use new
7164 Perl script "util/mkdir-p.pl".
7167 *) Rewrite the way password based encryption (PBE) is handled. It used to
7168 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7169 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7170 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7171 the 'parameter' field of the AlgorithmIdentifier is passed to the
7172 underlying key generation function so it must do its own ASN1 parsing.
7173 This has also changed the EVP_PBE_CipherInit() function which now has a
7174 'parameter' argument instead of literal salt and iteration count values
7175 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7178 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7179 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7180 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7181 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7182 value was just used as a "magic string" and not used directly its
7183 value doesn't matter.
7186 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7190 *) "linux-sparc64" configuration (ultrapenguin).
7191 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7192 "linux-sparc" configuration.
7193 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7195 *) config now generates no-xxx options for missing ciphers.
7198 *) Support the EBCDIC character set (work in progress).
7199 File ebcdic.c not yet included because it has a different license.
7200 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7202 *) Support BS2000/OSD-POSIX.
7203 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7205 *) Make callbacks for key generation use void * instead of char *.
7208 *) Make S/MIME samples compile (not yet tested).
7211 *) Additional typesafe stacks.
7214 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7218 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7220 *) New configuration variant "sco5-gcc".
7222 *) Updated some demos.
7223 [Sean O Riordain, Wade Scholine]
7225 *) Add missing BIO_free at exit of pkcs12 application.
7228 *) Fix memory leak in conf.c.
7231 *) Updates for Win32 to assembler version of MD5.
7234 *) Set #! path to perl in apps/der_chop to where we found it
7235 instead of using a fixed path.
7238 *) SHA library changes for irix64-mips4-cc.
7241 *) Improvements for VMS support.
7245 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7247 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7248 This also avoids the problems with SC4.2 and unpatched SC5.
7249 [Andy Polyakov <appro@fy.chalmers.se>]
7251 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7252 These are required because of the typesafe stack would otherwise break
7253 existing code. If old code used a structure member which used to be STACK
7254 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7255 sk_num or sk_value it would produce an error because the num, data members
7256 are not present in STACK_OF. Now it just produces a warning. sk_set
7257 replaces the old method of assigning a value to sk_value
7258 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7259 that does this will no longer work (and should use sk_set instead) but
7260 this could be regarded as a "questionable" behaviour anyway.
7263 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7264 correctly handle encrypted S/MIME data.
7267 *) Change type of various DES function arguments from des_cblock
7268 (which means, in function argument declarations, pointer to char)
7269 to des_cblock * (meaning pointer to array with 8 char elements),
7270 which allows the compiler to do more typechecking; it was like
7271 that back in SSLeay, but with lots of ugly casts.
7273 Introduce new type const_des_cblock.
7276 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7277 problems: find RecipientInfo structure that matches recipient certificate
7278 and initialise the ASN1 structures properly based on passed cipher.
7281 *) Belatedly make the BN tests actually check the results.
7284 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7285 to and from BNs: it was completely broken. New compilation option
7286 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7287 key elements as negative integers.
7290 *) Reorganize and speed up MD5.
7291 [Andy Polyakov <appro@fy.chalmers.se>]
7294 [Richard Levitte <richard@levitte.org>]
7296 *) New option -out to asn1parse to allow the parsed structure to be
7297 output to a file. This is most useful when combined with the -strparse
7298 option to examine the output of things like OCTET STRINGS.
7301 *) Make SSL library a little more fool-proof by not requiring any longer
7302 that SSL_set_{accept,connect}_state be called before
7303 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7304 in many applications because usually everything *appeared* to work as
7305 intended anyway -- now it really works as intended).
7308 *) Move openssl.cnf out of lib/.
7311 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7312 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7313 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7314 [Ralf S. Engelschall]
7316 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7317 handle PKCS#7 enveloped data properly.
7318 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7320 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7321 copying pointers. The cert_st handling is changed by this in
7322 various ways (and thus what used to be known as ctx->default_cert
7323 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7324 any longer when s->cert does not give us what we need).
7325 ssl_cert_instantiate becomes obsolete by this change.
7326 As soon as we've got the new code right (possibly it already is?),
7327 we have solved a couple of bugs of the earlier code where s->cert
7328 was used as if it could not have been shared with other SSL structures.
7330 Note that using the SSL API in certain dirty ways now will result
7331 in different behaviour than observed with earlier library versions:
7332 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7333 does not influence s as it used to.
7335 In order to clean up things more thoroughly, inside SSL_SESSION
7336 we don't use CERT any longer, but a new structure SESS_CERT
7337 that holds per-session data (if available); currently, this is
7338 the peer's certificate chain and, for clients, the server's certificate
7339 and temporary key. CERT holds only those values that can have
7340 meaningful defaults in an SSL_CTX.
7343 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7344 from the internal representation. Various PKCS#7 fixes: remove some
7345 evil casts and set the enc_dig_alg field properly based on the signing
7349 *) Allow PKCS#12 password to be set from the command line or the
7350 environment. Let 'ca' get its config file name from the environment
7351 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7355 *) Allow certificate policies extension to use an IA5STRING for the
7356 organization field. This is contrary to the PKIX definition but
7357 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7361 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7362 without disallowing inline assembler and the like for non-pedantic builds.
7365 *) Support Borland C++ builder.
7366 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7371 *) SHA-1 cleanups and performance enhancements.
7372 [Andy Polyakov <appro@fy.chalmers.se>]
7374 *) Sparc v8plus assembler for the bignum library.
7375 [Andy Polyakov <appro@fy.chalmers.se>]
7377 *) Accept any -xxx and +xxx compiler options in Configure.
7380 *) Update HPUX configuration.
7383 *) Add missing sk_<type>_unshift() function to safestack.h
7384 [Ralf S. Engelschall]
7386 *) New function SSL_CTX_use_certificate_chain_file that sets the
7387 "extra_cert"s in addition to the certificate. (This makes sense
7388 only for "PEM" format files, as chains as a whole are not
7392 *) Support verify_depth from the SSL API.
7393 x509_vfy.c had what can be considered an off-by-one-error:
7394 Its depth (which was not part of the external interface)
7395 was actually counting the number of certificates in a chain;
7396 now it really counts the depth.
7399 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7400 instead of X509err, which often resulted in confusing error
7401 messages since the error codes are not globally unique
7402 (e.g. an alleged error in ssl3_accept when a certificate
7403 didn't match the private key).
7405 *) New function SSL_CTX_set_session_id_context that allows to set a default
7406 value (so that you don't need SSL_set_session_id_context for each
7407 connection using the SSL_CTX).
7410 *) OAEP decoding bug fix.
7413 *) Support INSTALL_PREFIX for package builders, as proposed by
7417 *) New Configure options "threads" and "no-threads". For systems
7418 where the proper compiler options are known (currently Solaris
7419 and Linux), "threads" is the default.
7422 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7425 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7426 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7427 such as /usr/local/bin.
7430 *) "make linux-shared" to build shared libraries.
7431 [Niels Poppe <niels@netbox.org>]
7433 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7436 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7437 extension adding in x509 utility.
7440 *) Remove NOPROTO sections and error code comments.
7443 *) Partial rewrite of the DEF file generator to now parse the ANSI
7447 *) New Configure options --prefix=DIR and --openssldir=DIR.
7450 *) Complete rewrite of the error code script(s). It is all now handled
7451 by one script at the top level which handles error code gathering,
7452 header rewriting and C source file generation. It should be much better
7453 than the old method: it now uses a modified version of Ulf's parser to
7454 read the ANSI prototypes in all header files (thus the old K&R definitions
7455 aren't needed for error creation any more) and do a better job of
7456 translating function codes into names. The old 'ASN1 error code imbedded
7457 in a comment' is no longer necessary and it doesn't use .err files which
7458 have now been deleted. Also the error code call doesn't have to appear all
7459 on one line (which resulted in some large lines...).
7462 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7465 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7466 0 (which usually indicates a closed connection), but continue reading.
7469 *) Fix some race conditions.
7472 *) Add support for CRL distribution points extension. Add Certificate
7473 Policies and CRL distribution points documentation.
7476 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7479 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7480 8 of keying material. Merlin has also confirmed interop with this fix
7481 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7482 [Merlin Hughes <merlin@baltimore.ie>]
7484 *) Fix lots of warnings.
7485 [Richard Levitte <levitte@stacken.kth.se>]
7487 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7488 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7489 [Richard Levitte <levitte@stacken.kth.se>]
7491 *) Fix problems with sizeof(long) == 8.
7492 [Andy Polyakov <appro@fy.chalmers.se>]
7494 *) Change functions to ANSI C.
7497 *) Fix typos in error codes.
7498 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7500 *) Remove defunct assembler files from Configure.
7503 *) SPARC v8 assembler BIGNUM implementation.
7504 [Andy Polyakov <appro@fy.chalmers.se>]
7506 *) Support for Certificate Policies extension: both print and set.
7507 Various additions to support the r2i method this uses.
7510 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7511 return a const string when you are expecting an allocated buffer.
7514 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7515 types DirectoryString and DisplayText.
7518 *) Add code to allow r2i extensions to access the configuration database,
7519 add an LHASH database driver and add several ctx helper functions.
7522 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7523 fail when they extended the size of a BIGNUM.
7526 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7527 support typesafe stack.
7530 *) Fix typo in SSL_[gs]et_options().
7531 [Nils Frostberg <nils@medcom.se>]
7533 *) Delete various functions and files that belonged to the (now obsolete)
7534 old X509V3 handling code.
7537 *) New Configure option "rsaref".
7540 *) Don't auto-generate pem.h.
7543 *) Introduce type-safe ASN.1 SETs.
7546 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7547 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7549 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7550 that links with OpenSSL (well at least cause lots of warnings), but fear
7551 not: the conversion is trivial, and it eliminates loads of evil casts. A
7552 few STACKed things have been converted already. Feel free to convert more.
7553 In the fullness of time, I'll do away with the STACK type altogether.
7556 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7557 specified in <certfile> by updating the entry in the index.txt file.
7558 This way one no longer has to edit the index.txt file manually for
7559 revoking a certificate. The -revoke option does the gory details now.
7560 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7562 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7563 `-text' option at all and this way the `-noout -text' combination was
7564 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7565 [Ralf S. Engelschall]
7567 *) Make sure a corresponding plain text error message exists for the
7568 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7569 verify callback function determined that a certificate was revoked.
7570 [Ralf S. Engelschall]
7572 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7573 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7574 all available cipers including rc5, which was forgotten until now.
7575 In order to let the testing shell script know which algorithms
7576 are available, a new (up to now undocumented) command
7577 "openssl list-cipher-commands" is used.
7580 *) Bugfix: s_client occasionally would sleep in select() when
7581 it should have checked SSL_pending() first.
7584 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7585 the raw DSA values prior to ASN.1 encoding.
7588 *) Tweaks to Configure
7589 [Niels Poppe <niels@netbox.org>]
7591 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7595 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7598 *) New config option to avoid instructions that are illegal on the 80386.
7599 The default code is faster, but requires at least a 486.
7602 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7603 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7604 same as SSL2_VERSION anyway.
7607 *) New "-showcerts" option for s_client.
7610 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7611 application. Various cleanups and fixes.
7614 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7615 modify error routines to work internally. Add error codes and PBE init
7616 to library startup routines.
7619 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7620 packing functions to asn1 and evp. Changed function names and error
7621 codes along the way.
7624 *) PKCS12 integration: and so it begins... First of several patches to
7625 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7626 objects to objects.h
7629 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7630 and display support for Thawte strong extranet extension.
7633 *) Add LinuxPPC support.
7634 [Jeff Dubrule <igor@pobox.org>]
7636 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7637 bn_div_words in alpha.s.
7638 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7640 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7641 OAEP isn't supported when OpenSSL is built with RSAref.
7642 [Ulf Moeller <ulf@fitug.de>]
7644 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7645 so they no longer are missing under -DNOPROTO.
7646 [Soren S. Jorvang <soren@t.dk>]
7649 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7651 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7652 doesn't work when the session is reused. Coming soon!
7655 *) Fix a security hole, that allows sessions to be reused in the wrong
7656 context thus bypassing client cert protection! All software that uses
7657 client certs and session caches in multiple contexts NEEDS PATCHING to
7658 allow session reuse! A fuller solution is in the works.
7659 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7661 *) Some more source tree cleanups (removed obsolete files
7662 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7663 permission on "config" script to be executable) and a fix for the INSTALL
7665 [Ulf Moeller <ulf@fitug.de>]
7667 *) Remove some legacy and erroneous uses of malloc, free instead of
7669 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7671 *) Make rsa_oaep_test return non-zero on error.
7672 [Ulf Moeller <ulf@fitug.de>]
7674 *) Add support for native Solaris shared libraries. Configure
7675 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7676 if someone would make that last step automatic.
7677 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7679 *) ctx_size was not built with the right compiler during "make links". Fixed.
7682 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7683 except NULL ciphers". This means the default cipher list will no longer
7684 enable NULL ciphers. They need to be specifically enabled e.g. with
7685 the string "DEFAULT:eNULL".
7688 *) Fix to RSA private encryption routines: if p < q then it would
7689 occasionally produce an invalid result. This will only happen with
7690 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7693 *) Be less restrictive and allow also `perl util/perlpath.pl
7694 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7695 because this way one can also use an interpreter named `perl5' (which is
7696 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7697 installed as `perl').
7698 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7700 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7701 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7703 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7704 advapi32.lib to Win32 build and change the pem test comparision
7705 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7706 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7707 and crypto/des/ede_cbcm_enc.c.
7710 *) DES quad checksum was broken on big-endian architectures. Fixed.
7713 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7714 Win32 test batch file so it (might) work again. The Win32 test batch file
7715 is horrible: I feel ill....
7718 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7719 in e_os.h. Audit of header files to check ANSI and non ANSI
7720 sections: 10 functions were absent from non ANSI section and not exported
7721 from Windows DLLs. Fixed up libeay.num for new functions.
7724 *) Make `openssl version' output lines consistent.
7725 [Ralf S. Engelschall]
7727 *) Fix Win32 symbol export lists for BIO functions: Added
7728 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7729 to ms/libeay{16,32}.def.
7730 [Ralf S. Engelschall]
7732 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7733 fine under Unix and passes some trivial tests I've now added. But the
7734 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7735 added to make sure no one expects that this stuff really works in the
7736 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7737 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7739 [Ralf S. Engelschall]
7741 *) Fix the generation of two part addresses in perl.
7742 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7744 *) Add config entry for Linux on MIPS.
7745 [John Tobey <jtobey@channel1.com>]
7747 *) Make links whenever Configure is run, unless we are on Windoze.
7750 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7751 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7755 *) Add a useful kludge to allow package maintainers to specify compiler and
7756 other platforms details on the command line without having to patch the
7757 Configure script everytime: One now can use ``perl Configure
7758 <id>:<details>'', i.e. platform ids are allowed to have details appended
7759 to them (seperated by colons). This is treated as there would be a static
7760 pre-configured entry in Configure's %table under key <id> with value
7761 <details> and ``perl Configure <id>'' is called. So, when you want to
7762 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7763 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7764 now, which overrides the FreeBSD-elf entry on-the-fly.
7765 [Ralf S. Engelschall]
7767 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7770 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7771 on the `perl Configure ...' command line. This way one can compile
7772 OpenSSL libraries with Position Independent Code (PIC) which is needed
7773 for linking it into DSOs.
7774 [Ralf S. Engelschall]
7776 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7780 *) Cleaned up the LICENSE document: The official contact for any license
7781 questions now is the OpenSSL core team under openssl-core@openssl.org.
7782 And add a paragraph about the dual-license situation to make sure people
7783 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7784 to the OpenSSL toolkit.
7785 [Ralf S. Engelschall]
7787 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7788 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7789 Additonally cleaned up the `make links' target: Remove unnecessary
7790 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7791 to speed processing and no longer clutter the display with confusing
7792 stuff. Instead only the actually done links are displayed.
7793 [Ralf S. Engelschall]
7795 *) Permit null encryption ciphersuites, used for authentication only. It used
7796 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7797 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7801 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7802 signed attributes when verifying signatures (this would break them),
7803 the detached data encoding was wrong and public keys obtained using
7804 X509_get_pubkey() weren't freed.
7807 *) Add text documentation for the BUFFER functions. Also added a work around
7808 to a Win95 console bug. This was triggered by the password read stuff: the
7809 last character typed gets carried over to the next fread(). If you were
7810 generating a new cert request using 'req' for example then the last
7811 character of the passphrase would be CR which would then enter the first
7815 *) Added the new `Includes OpenSSL Cryptography Software' button as
7816 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7817 button and can be used by applications based on OpenSSL to show the
7818 relationship to the OpenSSL project.
7819 [Ralf S. Engelschall]
7821 *) Remove confusing variables in function signatures in files
7822 ssl/ssl_lib.c and ssl/ssl.h.
7823 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7825 *) Don't install bss_file.c under PREFIX/include/
7826 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7828 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7829 functions that return function pointers and has support for NT specific
7830 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7831 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7832 unsigned to signed types: this was killing the Win32 compile.
7835 *) Add new certificate file to stack functions,
7836 SSL_add_dir_cert_subjects_to_stack() and
7837 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7838 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7839 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7840 This means that Apache-SSL and similar packages don't have to mess around
7841 to add as many CAs as they want to the preferred list.
7844 *) Experiment with doxygen documentation. Currently only partially applied to
7846 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7847 openssl.doxy as the configuration file.
7850 *) Get rid of remaining C++-style comments which strict C compilers hate.
7851 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7853 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7854 compiled in by default: it has problems with large keys.
7857 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7858 DH private keys and/or callback functions which directly correspond to
7859 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7860 is needed for applications which have to configure certificates on a
7861 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7863 For the RSA certificate situation is makes no difference, but
7864 for the DSA certificate situation this fixes the "no shared cipher"
7865 problem where the OpenSSL cipher selection procedure failed because the
7866 temporary keys were not overtaken from the context and the API provided
7867 no way to reconfigure them.
7868 The new functions now let applications reconfigure the stuff and they
7869 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7870 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7871 non-public-API function ssl_cert_instantiate() is used as a helper
7872 function and also to reduce code redundancy inside ssl_rsa.c.
7873 [Ralf S. Engelschall]
7875 *) Move s_server -dcert and -dkey options out of the undocumented feature
7876 area because they are useful for the DSA situation and should be
7877 recognized by the users.
7878 [Ralf S. Engelschall]
7880 *) Fix the cipher decision scheme for export ciphers: the export bits are
7881 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7882 SSL_EXP_MASK. So, the original variable has to be used instead of the
7883 already masked variable.
7884 [Richard Levitte <levitte@stacken.kth.se>]
7886 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7887 [Richard Levitte <levitte@stacken.kth.se>]
7889 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7890 from `int' to `unsigned int' because it's a length and initialized by
7891 EVP_DigestFinal() which expects an `unsigned int *'.
7892 [Richard Levitte <levitte@stacken.kth.se>]
7894 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7895 script. Instead use the usual Shell->Perl transition trick.
7896 [Ralf S. Engelschall]
7898 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7899 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7900 -noout -modulus' as it's already the case for `openssl rsa -noout
7901 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7902 currently the public key is printed (a decision which was already done by
7903 `openssl dsa -modulus' in the past) which serves a similar purpose.
7904 Additionally the NO_RSA no longer completely removes the whole -modulus
7905 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7907 [Ralf S. Engelschall]
7909 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7910 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7911 [Arne Ansper <arne@ats.cyber.ee>]
7913 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7914 to be added. Now both 'req' and 'ca' can use new objects defined in the
7918 *) Add cool BIO that does syslog (or event log on NT).
7919 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7921 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7922 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7923 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7924 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7927 *) Add preliminary config info for new extension code.
7930 *) Make RSA_NO_PADDING really use no padding.
7931 [Ulf Moeller <ulf@fitug.de>]
7933 *) Generate errors when private/public key check is done.
7936 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7937 for some CRL extensions and new objects added.
7940 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7941 key usage extension and fuller support for authority key id.
7944 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7945 padding method for RSA, which is recommended for new applications in PKCS
7946 #1 v2.0 (RFC 2437, October 1998).
7947 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7948 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7949 against Bleichbacher's attack on RSA.
7950 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7953 *) Updates to the new SSL compression code
7954 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7956 *) Fix so that the version number in the master secret, when passed
7957 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7958 (because the server will not accept higher), that the version number
7959 is 0x03,0x01, not 0x03,0x00
7960 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7962 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7963 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7964 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7967 *) Support for RAW extensions where an arbitrary extension can be
7968 created by including its DER encoding. See apps/openssl.cnf for
7972 *) Make sure latest Perl versions don't interpret some generated C array
7973 code as Perl array code in the crypto/err/err_genc.pl script.
7974 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7976 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7977 not many people have the assembler. Various Win32 compilation fixes and
7978 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7982 *) Modify configure script 'Configure' to automatically create crypto/date.h
7983 file under Win32 and also build pem.h from pem.org. New script
7984 util/mkfiles.pl to create the MINFO file on environments that can't do a
7985 'make files': perl util/mkfiles.pl >MINFO should work.
7988 *) Major rework of DES function declarations, in the pursuit of correctness
7989 and purity. As a result, many evil casts evaporated, and some weirdness,
7990 too. You may find this causes warnings in your code. Zapping your evil
7991 casts will probably fix them. Mostly.
7994 *) Fix for a typo in asn1.h. Bug fix to object creation script
7995 obj_dat.pl. It considered a zero in an object definition to mean
7996 "end of object": none of the objects in objects.h have any zeros
7997 so it wasn't spotted.
7998 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8000 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8001 Masking (CBCM). In the absence of test vectors, the best I have been able
8002 to do is check that the decrypt undoes the encrypt, so far. Send me test
8003 vectors if you have them.
8006 *) Correct calculation of key length for export ciphers (too much space was
8007 allocated for null ciphers). This has not been tested!
8010 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8011 message is now correct (it understands "crypto" and "ssl" on its
8012 command line). There is also now an "update" option. This will update
8013 the util/ssleay.num and util/libeay.num files with any new functions.
8015 perl util/mkdef.pl crypto ssl update
8016 it will update them.
8019 *) Overhauled the Perl interface (perl/*):
8020 - ported BN stuff to OpenSSL's different BN library
8021 - made the perl/ source tree CVS-aware
8022 - renamed the package from SSLeay to OpenSSL (the files still contain
8023 their history because I've copied them in the repository)
8024 - removed obsolete files (the test scripts will be replaced
8025 by better Test::Harness variants in the future)
8026 [Ralf S. Engelschall]
8028 *) First cut for a very conservative source tree cleanup:
8029 1. merge various obsolete readme texts into doc/ssleay.txt
8030 where we collect the old documents and readme texts.
8031 2. remove the first part of files where I'm already sure that we no
8032 longer need them because of three reasons: either they are just temporary
8033 files which were left by Eric or they are preserved original files where
8034 I've verified that the diff is also available in the CVS via "cvs diff
8035 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8036 the crypto/md/ stuff).
8037 [Ralf S. Engelschall]
8039 *) More extension code. Incomplete support for subject and issuer alt
8040 name, issuer and authority key id. Change the i2v function parameters
8041 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8042 what that's for :-) Fix to ASN1 macro which messed up
8043 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8046 *) Preliminary support for ENUMERATED type. This is largely copied from the
8050 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8051 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8053 *) Make sure `make rehash' target really finds the `openssl' program.
8054 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8056 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8057 like to hear about it if this slows down other processors.
8060 *) Add CygWin32 platform information to Configure script.
8061 [Alan Batie <batie@aahz.jf.intel.com>]
8063 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8064 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8066 *) New program nseq to manipulate netscape certificate sequences
8069 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8073 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8074 but the BN code had some problems that would cause failures when
8075 doing certificate verification and some other functions.
8076 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8078 *) Add ASN1 and PEM code to support netscape certificate sequences.
8081 *) Add ASN1 and PEM code to support netscape certificate sequences.
8084 *) Add several PKIX and private extended key usage OIDs.
8087 *) Modify the 'ca' program to handle the new extension code. Modify
8088 openssl.cnf for new extension format, add comments.
8091 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8092 and add a sample to openssl.cnf so req -x509 now adds appropriate
8096 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8097 error code, add initial support to X509_print() and x509 application.
8100 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8101 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8102 stuff is currently isolated and isn't even compiled yet.
8105 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8106 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8107 Removed the versions check from X509 routines when loading extensions:
8108 this allows certain broken certificates that don't set the version
8109 properly to be processed.
8112 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8113 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8114 can still be regenerated with "make depend".
8117 *) Spelling mistake in C version of CAST-128.
8118 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8120 *) Changes to the error generation code. The perl script err-code.pl
8121 now reads in the old error codes and retains the old numbers, only
8122 adding new ones if necessary. It also only changes the .err files if new
8123 codes are added. The makefiles have been modified to only insert errors
8124 when needed (to avoid needlessly modifying header files). This is done
8125 by only inserting errors if the .err file is newer than the auto generated
8126 C file. To rebuild all the error codes from scratch (the old behaviour)
8127 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8128 or delete all the .err files.
8131 *) CAST-128 was incorrectly implemented for short keys. The C version has
8132 been fixed, but is untested. The assembler versions are also fixed, but
8133 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8134 to regenerate it if needed.
8135 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8136 Hagino <itojun@kame.net>]
8138 *) File was opened incorrectly in randfile.c.
8139 [Ulf Möller <ulf@fitug.de>]
8141 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8142 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8143 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8144 al: it's just almost always a UTCTime. Note this patch adds new error
8145 codes so do a "make errors" if there are problems.
8148 *) Correct Linux 1 recognition in config.
8149 [Ulf Möller <ulf@fitug.de>]
8151 *) Remove pointless MD5 hash when using DSA keys in ca.
8152 [Anonymous <nobody@replay.com>]
8154 *) Generate an error if given an empty string as a cert directory. Also
8155 generate an error if handed NULL (previously returned 0 to indicate an
8156 error, but didn't set one).
8157 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8159 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8162 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8163 parameters. This was causing a warning which killed off the Win32 compile.
8166 *) Remove C++ style comments from crypto/bn/bn_local.h.
8167 [Neil Costigan <neil.costigan@celocom.com>]
8169 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8170 based on a text string, looking up short and long names and finally
8171 "dot" format. The "dot" format stuff didn't work. Added new function
8172 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8173 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8174 OID is not part of the table.
8177 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8178 X509_LOOKUP_by_alias().
8181 *) Sort openssl functions by name.
8184 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8185 encryption from sample DSA keys (in case anyone is interested the password
8189 *) Make _all_ *_free functions accept a NULL pointer.
8190 [Frans Heymans <fheymans@isaserver.be>]
8192 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8194 [Anonymous <nobody@replay.com>]
8196 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8197 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8199 *) Don't blow it for numeric -newkey arguments to apps/req.
8200 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8202 *) Temp key "for export" tests were wrong in s3_srvr.c.
8203 [Anonymous <nobody@replay.com>]
8205 *) Add prototype for temp key callback functions
8206 SSL_CTX_set_tmp_{rsa,dh}_callback().
8209 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8210 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8213 *) X509_name_add_entry() freed the wrong thing after an error.
8214 [Arne Ansper <arne@ats.cyber.ee>]
8216 *) rsa_eay.c would attempt to free a NULL context.
8217 [Arne Ansper <arne@ats.cyber.ee>]
8219 *) BIO_s_socket() had a broken should_retry() on Windoze.
8220 [Arne Ansper <arne@ats.cyber.ee>]
8222 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8223 [Arne Ansper <arne@ats.cyber.ee>]
8225 *) Make sure the already existing X509_STORE->depth variable is initialized
8226 in X509_STORE_new(), but document the fact that this variable is still
8227 unused in the certificate verification process.
8228 [Ralf S. Engelschall]
8230 *) Fix the various library and apps files to free up pkeys obtained from
8231 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8234 *) Fix reference counting in X509_PUBKEY_get(). This makes
8235 demos/maurice/example2.c work, amongst others, probably.
8236 [Steve Henson and Ben Laurie]
8238 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8239 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8240 are no longer created. This way we have a single and consistent command
8241 line interface `openssl <command>', similar to `cvs <command>'.
8242 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8244 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8245 BIT STRING wrapper always have zero unused bits.
8248 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8251 *) Make the top-level INSTALL documentation easier to understand.
8254 *) Makefiles updated to exit if an error occurs in a sub-directory
8255 make (including if user presses ^C) [Paul Sutton]
8257 *) Make Montgomery context stuff explicit in RSA data structure.
8260 *) Fix build order of pem and err to allow for generated pem.h.
8263 *) Fix renumbering bug in X509_NAME_delete_entry().
8266 *) Enhanced the err-ins.pl script so it makes the error library number
8267 global and can add a library name. This is needed for external ASN1 and
8268 other error libraries.
8271 *) Fixed sk_insert which never worked properly.
8274 *) Fix ASN1 macros so they can handle indefinite length construted
8275 EXPLICIT tags. Some non standard certificates use these: they can now
8279 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8280 into a single doc/ssleay.txt bundle. This way the information is still
8281 preserved but no longer messes up this directory. Now it's new room for
8282 the new set of documenation files.
8283 [Ralf S. Engelschall]
8285 *) SETs were incorrectly DER encoded. This was a major pain, because they
8286 shared code with SEQUENCEs, which aren't coded the same. This means that
8287 almost everything to do with SETs or SEQUENCEs has either changed name or
8288 number of arguments.
8289 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8291 *) Fix test data to work with the above.
8294 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8295 was already fixed by Eric for 0.9.1 it seems.
8296 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8298 *) Autodetect FreeBSD3.
8301 *) Fix various bugs in Configure. This affects the following platforms:
8305 unixware-2.0-pentium
8309 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8310 before they are needed.
8313 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8317 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8319 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8320 changed SSLeay to OpenSSL in version strings.
8321 [Ralf S. Engelschall]
8323 *) Some fixups to the top-level documents.
8326 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8327 because the symlink to include/ was missing.
8328 [Ralf S. Engelschall]
8330 *) Incorporated the popular no-RSA/DSA-only patches
8331 which allow to compile a RSA-free SSLeay.
8332 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8334 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8335 when "ssleay" is still not found.
8336 [Ralf S. Engelschall]
8338 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8339 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8341 *) Updated the README file.
8342 [Ralf S. Engelschall]
8344 *) Added various .cvsignore files in the CVS repository subdirs
8345 to make a "cvs update" really silent.
8346 [Ralf S. Engelschall]
8348 *) Recompiled the error-definition header files and added
8349 missing symbols to the Win32 linker tables.
8350 [Ralf S. Engelschall]
8352 *) Cleaned up the top-level documents;
8353 o new files: CHANGES and LICENSE
8354 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8355 o merged COPYRIGHT into LICENSE
8356 o removed obsolete TODO file
8357 o renamed MICROSOFT to INSTALL.W32
8358 [Ralf S. Engelschall]
8360 *) Removed dummy files from the 0.9.1b source tree:
8361 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8362 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8363 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8364 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8365 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8366 [Ralf S. Engelschall]
8368 *) Added various platform portability fixes.
8371 *) The Genesis of the OpenSSL rpject:
8372 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8373 Young and Tim J. Hudson created while they were working for C2Net until
8375 [The OpenSSL Project]
8378 Changes between 0.9.0b and 0.9.1b [not released]
8380 *) Updated a few CA certificates under certs/
8383 *) Changed some BIGNUM api stuff.
8386 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8387 DGUX x86, Linux Alpha, etc.
8390 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8391 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8395 *) Add -strparse option to asn1pars program which parses nested
8397 [Dr Stephen Henson <shenson@bigfoot.com>]
8399 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8402 *) DSA fix for "ca" program.
8405 *) Added "-genkey" option to "dsaparam" program.
8408 *) Added RIPE MD160 (rmd160) message digest.
8411 *) Added -a (all) option to "ssleay version" command.
8414 *) Added PLATFORM define which is the id given to Configure.
8417 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8420 *) Extended the ASN.1 parser routines.
8423 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8426 *) Added a BN_CTX to the BN library.
8429 *) Fixed the weak key values in DES library
8432 *) Changed API in EVP library for cipher aliases.
8435 *) Added support for RC2/64bit cipher.
8438 *) Converted the lhash library to the crypto/mem.c functions.
8441 *) Added more recognized ASN.1 object ids.
8444 *) Added more RSA padding checks for SSL/TLS.
8447 *) Added BIO proxy/filter functionality.
8450 *) Added extra_certs to SSL_CTX which can be used
8451 send extra CA certificates to the client in the CA cert chain sending
8452 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8455 *) Now Fortezza is denied in the authentication phase because
8456 this is key exchange mechanism is not supported by SSLeay at all.
8459 *) Additional PKCS1 checks.
8462 *) Support the string "TLSv1" for all TLS v1 ciphers.
8465 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8466 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8469 *) Fixed a few memory leaks.
8472 *) Fixed various code and comment typos.
8475 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8476 bytes sent in the client random.
8477 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob