5 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
7 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
8 implemention in the following ways:
10 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
13 Lack of BER streaming support means one pass streaming processing is
14 only supported if data is detached: setting the streaming flag is
15 ignored for embedded content.
17 CMS support is disabled by default and must be explicitly enabled
18 with the enable-cms configuration option.
21 *) Update the GMP engine glue to do direct copies between BIGNUM and
22 mpz_t when openssl and GMP use the same limb size. Otherwise the
23 existing "conversion via a text string export" trick is still used.
24 [Paul Sheer <paulsheer@gmail.com>]
26 *) Zlib compression BIO. This is a filter BIO which compressed and
27 uncompresses any data passed through it.
30 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
31 RFC3394 compatible AES key wrapping.
34 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
35 sets string data without copying. X509_ALGOR_set0() and
36 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
37 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
38 from an X509_ATTRIBUTE structure optionally checking it occurs only
39 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
43 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
44 to get the expected BN_FLG_CONSTTIME behavior.
45 [Bodo Moeller (Google)]
49 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
50 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
51 - added some more tests to do_tests.pl
52 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
53 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
54 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
55 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
56 - various changes to netware.pl to enable gcc-cross builds on Win32
58 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
59 - various changes to fix missing prototype warnings
60 - fixed x86nasm.pl to create correct asm files for NASM COFF output
61 - added AES, WHIRLPOOL and CPUID assembler code to build files
62 - added missing AES assembler make rules to mk1mf.pl
63 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
64 [Guenter Knauf <eflash@gmx.net>]
66 *) Implement certificate status request TLS extension defined in RFC3546.
67 A client can set the appropriate parameters and receive the encoded
68 OCSP response via a callback. A server can query the supplied parameters
69 and set the encoded OCSP response in the callback. Add simplified examples
70 to s_client and s_server.
73 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
76 + Binary incompatibility of ssl_ctx_st structure
77 + DTLS interoperation with non-compliant servers
78 + Don't call get_session_cb() without proposed session
79 + Fix ia64 assembler code
80 [Andy Polyakov, Steve Henson]
82 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
84 *) DTLS Handshake overhaul. There were longstanding issues with
85 OpenSSL DTLS implementation, which were making it impossible for
86 RFC 4347 compliant client to communicate with OpenSSL server.
87 Unfortunately just fixing these incompatibilities would "cut off"
88 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
89 server keeps tolerating non RFC compliant syntax. The opposite is
90 not true, 0.9.8f client can not communicate with earlier server.
91 This update even addresses CVE-2007-4995.
94 *) Changes to avoid need for function casts in OpenSSL: some compilers
95 (gcc 4.2 and later) reject their use.
96 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
99 *) Add RFC4507 support to OpenSSL. This includes the corrections in
100 RFC4507bis. The encrypted ticket format is an encrypted encoded
101 SSL_SESSION structure, that way new session features are automatically
104 If a client application caches session in an SSL_SESSION structure
105 support is transparent because tickets are now stored in the encoded
108 The SSL_CTX structure automatically generates keys for ticket
109 protection in servers so again support should be possible
110 with no application modification.
112 If a client or server wishes to disable RFC4507 support then the option
113 SSL_OP_NO_TICKET can be set.
115 Add a TLS extension debugging callback to allow the contents of any client
116 or server extensions to be examined.
118 This work was sponsored by Google.
121 *) Add initial support for TLS extensions, specifically for the server_name
122 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
123 have new members for a host name. The SSL data structure has an
124 additional member SSL_CTX *initial_ctx so that new sessions can be
125 stored in that context to allow for session resumption, even after the
126 SSL has been switched to a new SSL_CTX in reaction to a client's
127 server_name extension.
129 New functions (subject to change):
132 SSL_get_servername_type()
135 New CTRL codes and macros (subject to change):
137 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
138 - SSL_CTX_set_tlsext_servername_callback()
139 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
140 - SSL_CTX_set_tlsext_servername_arg()
141 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
143 openssl s_client has a new '-servername ...' option.
145 openssl s_server has new options '-servername_host ...', '-cert2 ...',
146 '-key2 ...', '-servername_fatal' (subject to change). This allows
147 testing the HostName extension for a specific single host name ('-cert'
148 and '-key' remain fallbacks for handshakes without HostName
149 negotiation). If the unrecogninzed_name alert has to be sent, this by
150 default is a warning; it becomes fatal with the '-servername_fatal'
153 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
155 *) Add AES and SSE2 assembly language support to VC++ build.
158 *) Mitigate attack on final subtraction in Montgomery reduction.
161 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
162 (which previously caused an internal error).
165 *) Squeeze another 10% out of IGE mode when in != out.
168 *) AES IGE mode speedup.
169 [Dean Gaudet (Google)]
171 *) Add the Korean symmetric 128-bit cipher SEED (see
172 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
173 add SEED ciphersuites from RFC 4162:
175 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
176 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
177 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
178 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
180 To minimize changes between patchlevels in the OpenSSL 0.9.8
181 series, SEED remains excluded from compilation unless OpenSSL
182 is configured with 'enable-seed'.
185 *) Mitigate branch prediction attacks, which can be practical if a
186 single processor is shared, allowing a spy process to extract
187 information. For detailed background information, see
188 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
189 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
190 and Necessary Software Countermeasures"). The core of the change
191 are new versions BN_div_no_branch() and
192 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
193 respectively, which are slower, but avoid the security-relevant
194 conditional branches. These are automatically called by BN_div()
195 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
196 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
197 remove a conditional branch.
199 BN_FLG_CONSTTIME is the new name for the previous
200 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
201 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
202 in the exponent causes BN_mod_exp_mont() to use the alternative
203 implementation in BN_mod_exp_mont_consttime().) The old name
204 remains as a deprecated alias.
206 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
207 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
208 constant-time implementations for more than just exponentiation.
209 Here too the old name is kept as a deprecated alias.
211 BN_BLINDING_new() will now use BN_dup() for the modulus so that
212 the BN_BLINDING structure gets an independent copy of the
213 modulus. This means that the previous "BIGNUM *m" argument to
214 BN_BLINDING_new() and to BN_BLINDING_create_param() now
215 essentially becomes "const BIGNUM *m", although we can't actually
216 change this in the header file before 0.9.9. It allows
217 RSA_setup_blinding() to use BN_with_flags() on the modulus to
218 enable BN_FLG_CONSTTIME.
220 [Matthew D Wood (Intel Corp)]
222 *) In the SSL/TLS server implementation, be strict about session ID
223 context matching (which matters if an application uses a single
224 external cache for different purposes). Previously,
225 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
226 set. This did ensure strict client verification, but meant that,
227 with applications using a single external cache for quite
228 different requirements, clients could circumvent ciphersuite
229 restrictions for a given session ID context by starting a session
230 in a different context.
233 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
234 a ciphersuite string such as "DEFAULT:RSA" cannot enable
235 authentication-only ciphersuites.
238 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
239 not complete and could lead to a possible single byte overflow
240 (CVE-2007-5135) [Ben Laurie]
242 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
244 *) Since AES128 and AES256 (and similarly Camellia128 and
245 Camellia256) share a single mask bit in the logic of
246 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
247 kludge to work properly if AES128 is available and AES256 isn't
248 (or if Camellia128 is available and Camellia256 isn't).
251 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
252 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
253 When a point or a seed is encoded in a BIT STRING, we need to
254 prevent the removal of trailing zero bits to get the proper DER
255 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
256 of a NamedBitList, for which trailing 0 bits need to be removed.)
259 *) Have SSL/TLS server implementation tolerate "mismatched" record
260 protocol version while receiving ClientHello even if the
261 ClientHello is fragmented. (The server can't insist on the
262 particular protocol version it has chosen before the ServerHello
263 message has informed the client about his choice.)
266 *) Add RFC 3779 support.
267 [Rob Austein for ARIN, Ben Laurie]
269 *) Load error codes if they are not already present instead of using a
270 static variable. This allows them to be cleanly unloaded and reloaded.
271 Improve header file function name parsing.
274 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
275 or CAPABILITY handshake as required by RFCs.
278 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
280 *) Introduce limits to prevent malicious keys being able to
281 cause a denial of service. (CVE-2006-2940)
282 [Steve Henson, Bodo Moeller]
284 *) Fix ASN.1 parsing of certain invalid structures that can result
285 in a denial of service. (CVE-2006-2937) [Steve Henson]
287 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
288 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
290 *) Fix SSL client code which could crash if connecting to a
291 malicious SSLv2 server. (CVE-2006-4343)
292 [Tavis Ormandy and Will Drewry, Google Security Team]
294 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
295 match only those. Before that, "AES256-SHA" would be interpreted
296 as a pattern and match "AES128-SHA" too (since AES128-SHA got
297 the same strength classification in 0.9.7h) as we currently only
298 have a single AES bit in the ciphersuite description bitmap.
299 That change, however, also applied to ciphersuite strings such as
300 "RC4-MD5" that intentionally matched multiple ciphersuites --
301 namely, SSL 2.0 ciphersuites in addition to the more common ones
302 from SSL 3.0/TLS 1.0.
304 So we change the selection algorithm again: Naming an explicit
305 ciphersuite selects this one ciphersuite, and any other similar
306 ciphersuite (same bitmap) from *other* protocol versions.
307 Thus, "RC4-MD5" again will properly select both the SSL 2.0
308 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
310 Since SSL 2.0 does not have any ciphersuites for which the
311 128/256 bit distinction would be relevant, this works for now.
312 The proper fix will be to use different bits for AES128 and
313 AES256, which would have avoided the problems from the beginning;
314 however, bits are scarce, so we can only do this in a new release
315 (not just a patchlevel) when we can change the SSL_CIPHER
316 definition to split the single 'unsigned long mask' bitmap into
317 multiple values to extend the available space.
321 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
323 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
324 (CVE-2006-4339) [Ben Laurie and Google Security Team]
326 *) Add AES IGE and biIGE modes.
329 *) Change the Unix randomness entropy gathering to use poll() when
330 possible instead of select(), since the latter has some
331 undesirable limitations.
332 [Darryl Miles via Richard Levitte and Bodo Moeller]
334 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
335 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
336 cannot be implicitly activated as part of, e.g., the "AES" alias.
337 However, please upgrade to OpenSSL 0.9.9[-dev] for
338 non-experimental use of the ECC ciphersuites to get TLS extension
339 support, which is required for curve and point format negotiation
340 to avoid potential handshake problems.
343 *) Disable rogue ciphersuites:
345 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
346 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
347 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
349 The latter two were purportedly from
350 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
353 Also deactivate the remaining ciphersuites from
354 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
355 unofficial, and the ID has long expired.
358 *) Fix RSA blinding Heisenbug (problems sometimes occured on
359 dual-core machines) and other potential thread-safety issues.
362 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
363 versions), which is now available for royalty-free use
364 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
365 Also, add Camellia TLS ciphersuites from RFC 4132.
367 To minimize changes between patchlevels in the OpenSSL 0.9.8
368 series, Camellia remains excluded from compilation unless OpenSSL
369 is configured with 'enable-camellia'.
372 *) Disable the padding bug check when compression is in use. The padding
373 bug check assumes the first packet is of even length, this is not
374 necessarily true if compresssion is enabled and can result in false
375 positives causing handshake failure. The actual bug test is ancient
376 code so it is hoped that implementations will either have fixed it by
377 now or any which still have the bug do not support compression.
380 Changes between 0.9.8a and 0.9.8b [04 May 2006]
382 *) When applying a cipher rule check to see if string match is an explicit
383 cipher suite and only match that one cipher suite if it is.
386 *) Link in manifests for VC++ if needed.
387 [Austin Ziegler <halostatue@gmail.com>]
389 *) Update support for ECC-based TLS ciphersuites according to
390 draft-ietf-tls-ecc-12.txt with proposed changes (but without
391 TLS extensions, which are supported starting with the 0.9.9
392 branch, not in the OpenSSL 0.9.8 branch).
395 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
396 opaque EVP_CIPHER_CTX handling.
399 *) Fixes and enhancements to zlib compression code. We now only use
400 "zlib1.dll" and use the default __cdecl calling convention on Win32
401 to conform with the standards mentioned here:
402 http://www.zlib.net/DLL_FAQ.txt
403 Static zlib linking now works on Windows and the new --with-zlib-include
404 --with-zlib-lib options to Configure can be used to supply the location
405 of the headers and library. Gracefully handle case where zlib library
409 *) Several fixes and enhancements to the OID generation code. The old code
410 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
411 handle numbers larger than ULONG_MAX, truncated printing and had a
412 non standard OBJ_obj2txt() behaviour.
415 *) Add support for building of engines under engine/ as shared libraries
416 under VC++ build system.
419 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
420 Hopefully, we will not see any false combination of paths any more.
423 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
425 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
426 (part of SSL_OP_ALL). This option used to disable the
427 countermeasure against man-in-the-middle protocol-version
428 rollback in the SSL 2.0 server implementation, which is a bad
429 idea. (CVE-2005-2969)
431 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
432 for Information Security, National Institute of Advanced Industrial
433 Science and Technology [AIST], Japan)]
435 *) Add two function to clear and return the verify parameter flags.
438 *) Keep cipherlists sorted in the source instead of sorting them at
439 runtime, thus removing the need for a lock.
442 *) Avoid some small subgroup attacks in Diffie-Hellman.
443 [Nick Mathewson and Ben Laurie]
445 *) Add functions for well-known primes.
448 *) Extended Windows CE support.
449 [Satoshi Nakamura and Andy Polyakov]
451 *) Initialize SSL_METHOD structures at compile time instead of during
452 runtime, thus removing the need for a lock.
455 *) Make PKCS7_decrypt() work even if no certificate is supplied by
456 attempting to decrypt each encrypted key in turn. Add support to
460 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
462 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
465 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
468 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
469 key into the same file any more.
472 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
475 *) Add -utf8 command line and config file option to 'ca'.
476 [Stefan <stf@udoma.org]
478 *) Removed the macro des_crypt(), as it seems to conflict with some
479 libraries. Use DES_crypt().
482 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
483 involves renaming the source and generated shared-libs for
484 both. The engines will accept the corrected or legacy ids
485 ('ncipher' and '4758_cca' respectively) when binding. NB,
486 this only applies when building 'shared'.
487 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
489 *) Add attribute functions to EVP_PKEY structure. Modify
490 PKCS12_create() to recognize a CSP name attribute and
491 use it. Make -CSP option work again in pkcs12 utility.
494 *) Add new functionality to the bn blinding code:
495 - automatic re-creation of the BN_BLINDING parameters after
496 a fixed number of uses (currently 32)
497 - add new function for parameter creation
498 - introduce flags to control the update behaviour of the
499 BN_BLINDING parameters
500 - hide BN_BLINDING structure
501 Add a second BN_BLINDING slot to the RSA structure to improve
502 performance when a single RSA object is shared among several
506 *) Add support for DTLS.
507 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
509 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
510 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
513 *) Remove buggy and incompletet DH cert support from
514 ssl/ssl_rsa.c and ssl/s3_both.c
517 *) Use SHA-1 instead of MD5 as the default digest algorithm for
518 the apps/openssl applications.
521 *) Compile clean with "-Wall -Wmissing-prototypes
522 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
523 DEBUG_SAFESTACK must also be set.
526 *) Change ./Configure so that certain algorithms can be disabled by default.
527 The new counterpiece to "no-xxx" is "enable-xxx".
529 The patented RC5 and MDC2 algorithms will now be disabled unless
530 "enable-rc5" and "enable-mdc2", respectively, are specified.
532 (IDEA remains enabled despite being patented. This is because IDEA
533 is frequently required for interoperability, and there is no license
534 fee for non-commercial use. As before, "no-idea" can be used to
535 avoid this algorithm.)
539 *) Add processing of proxy certificates (see RFC 3820). This work was
540 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
541 EGEE (Enabling Grids for E-science in Europe).
544 *) RC4 performance overhaul on modern architectures/implementations, such
545 as Intel P4, IA-64 and AMD64.
548 *) New utility extract-section.pl. This can be used specify an alternative
549 section number in a pod file instead of having to treat each file as
550 a separate case in Makefile. This can be done by adding two lines to the
553 =for comment openssl_section:XXX
555 The blank line is mandatory.
559 *) New arguments -certform, -keyform and -pass for s_client and s_server
560 to allow alternative format key and certificate files and passphrase
564 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
565 update associated structures and add various utility functions.
567 Add new policy related verify parameters, include policy checking in
568 standard verify code. Enhance 'smime' application with extra parameters
569 to support policy checking and print out.
572 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
573 Nehemiah processors. These extensions support AES encryption in hardware
574 as well as RNG (though RNG support is currently disabled).
575 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
577 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
580 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
581 [Andy Polyakov and a number of other people]
583 *) Improved PowerPC platform support. Most notably BIGNUM assembler
584 implementation contributed by IBM.
585 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
587 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
588 exponent rather than 'unsigned long'. There is a corresponding change to
589 the new 'rsa_keygen' element of the RSA_METHOD structure.
590 [Jelte Jansen, Geoff Thorpe]
592 *) Functionality for creating the initial serial number file is now
593 moved from CA.pl to the 'ca' utility with a new option -create_serial.
595 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
596 number file to 1, which is bound to cause problems. To avoid
597 the problems while respecting compatibility between different 0.9.7
598 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
599 CA.pl for serial number initialization. With the new release 0.9.8,
600 we can fix the problem directly in the 'ca' utility.)
603 *) Reduced header interdepencies by declaring more opaque objects in
604 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
605 give fewer recursive includes, which could break lazy source code - so
606 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
607 developers should define this symbol when building and using openssl to
608 ensure they track the recommended behaviour, interfaces, [etc], but
609 backwards-compatible behaviour prevails when this isn't defined.
612 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
615 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
616 This will generate a random key of the appropriate length based on the
617 cipher context. The EVP_CIPHER can provide its own random key generation
618 routine to support keys of a specific form. This is used in the des and
619 3des routines to generate a key of the correct parity. Update S/MIME
620 code to use new functions and hence generate correct parity DES keys.
621 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
622 valid (weak or incorrect parity).
625 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
626 as looking them up. This is useful when the verified structure may contain
627 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
628 present unless the new PKCS7_NO_CRL flag is asserted.
631 *) Extend ASN1 oid configuration module. It now additionally accepts the
634 shortName = some long name, 1.2.3.4
637 *) Reimplemented the BN_CTX implementation. There is now no more static
638 limitation on the number of variables it can handle nor the depth of the
639 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
640 information can now expand as required, and rather than having a single
641 static array of bignums, BN_CTX now uses a linked-list of such arrays
642 allowing it to expand on demand whilst maintaining the usefulness of
646 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
647 to allow all RSA operations to function using a single BN_CTX.
650 *) Preliminary support for certificate policy evaluation and checking. This
651 is initially intended to pass the tests outlined in "Conformance Testing
652 of Relying Party Client Certificate Path Processing Logic" v1.07.
655 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
656 remained unused and not that useful. A variety of other little bignum
657 tweaks and fixes have also been made continuing on from the audit (see
661 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
662 associated ASN1, EVP and SSL functions and old ASN1 macros.
665 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
666 and this should never fail. So the return value from the use of
667 BN_set_word() (which can fail due to needless expansion) is now deprecated;
668 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
671 *) BN_CTX_get() should return zero-valued bignums, providing the same
672 initialised value as BN_new().
673 [Geoff Thorpe, suggested by Ulf Möller]
675 *) Support for inhibitAnyPolicy certificate extension.
678 *) An audit of the BIGNUM code is underway, for which debugging code is
679 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
680 is considered valid when processing BIGNUMs, and causes execution to
681 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
682 further steps are taken to deliberately pollute unused data in BIGNUM
683 structures to try and expose faulty code further on. For now, openssl will
684 (in its default mode of operation) continue to tolerate the inconsistent
685 forms that it has tolerated in the past, but authors and packagers should
686 consider trying openssl and their own applications when compiled with
687 these debugging symbols defined. It will help highlight potential bugs in
688 their own code, and will improve the test coverage for OpenSSL itself. At
689 some point, these tighter rules will become openssl's default to improve
690 maintainability, though the assert()s and other overheads will remain only
691 in debugging configurations. See bn.h for more details.
692 [Geoff Thorpe, Nils Larsch, Ulf Möller]
694 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
695 that can only be obtained through BN_CTX_new() (which implicitly
696 initialises it). The presence of this function only made it possible
697 to overwrite an existing structure (and cause memory leaks).
700 *) Because of the callback-based approach for implementing LHASH as a
701 template type, lh_insert() adds opaque objects to hash-tables and
702 lh_doall() or lh_doall_arg() are typically used with a destructor callback
703 to clean up those corresponding objects before destroying the hash table
704 (and losing the object pointers). So some over-zealous constifications in
705 LHASH have been relaxed so that lh_insert() does not take (nor store) the
706 objects as "const" and the lh_doall[_arg] callback wrappers are not
707 prototyped to have "const" restrictions on the object pointers they are
708 given (and so aren't required to cast them away any more).
711 *) The tmdiff.h API was so ugly and minimal that our own timing utility
712 (speed) prefers to use its own implementation. The two implementations
713 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
714 its object type properly exposed (MS_TM) instead of casting to/from "char
715 *". This may still change yet if someone realises MS_TM and "ms_time_***"
716 aren't necessarily the greatest nomenclatures - but this is what was used
717 internally to the implementation so I've used that for now.
720 *) Ensure that deprecated functions do not get compiled when
721 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
722 the self-tests were still using deprecated key-generation functions so
723 these have been updated also.
726 *) Reorganise PKCS#7 code to separate the digest location functionality
727 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
728 New function PKCS7_set_digest() to set the digest type for PKCS#7
729 digestedData type. Add additional code to correctly generate the
730 digestedData type and add support for this type in PKCS7 initialization
734 *) New function PKCS7_set0_type_other() this initializes a PKCS7
735 structure of type "other".
738 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
739 sure the loop does correctly stop and breaking ("division by zero")
740 modulus operations are not performed. The (pre-generated) prime
741 table crypto/bn/bn_prime.h was already correct, but it could not be
742 re-generated on some platforms because of the "division by zero"
743 situation in the script.
744 [Ralf S. Engelschall]
746 *) Update support for ECC-based TLS ciphersuites according to
747 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
748 SHA-1 now is only used for "small" curves (where the
749 representation of a field element takes up to 24 bytes); for
750 larger curves, the field element resulting from ECDH is directly
751 used as premaster secret.
752 [Douglas Stebila (Sun Microsystems Laboratories)]
754 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
755 curve secp160r1 to the tests.
756 [Douglas Stebila (Sun Microsystems Laboratories)]
758 *) Add the possibility to load symbols globally with DSO.
759 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
761 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
762 control of the error stack.
765 *) Add support for STORE in ENGINE.
768 *) Add the STORE type. The intention is to provide a common interface
769 to certificate and key stores, be they simple file-based stores, or
770 HSM-type store, or LDAP stores, or...
771 NOTE: The code is currently UNTESTED and isn't really used anywhere.
774 *) Add a generic structure called OPENSSL_ITEM. This can be used to
775 pass a list of arguments to any function as well as provide a way
776 for a function to pass data back to the caller.
779 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
780 works like BUF_strdup() but can be used to duplicate a portion of
781 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
785 *) Add the function sk_find_ex() which works like sk_find(), but will
786 return an index to an element even if an exact match couldn't be
787 found. The index is guaranteed to point at the element where the
788 searched-for key would be inserted to preserve sorting order.
791 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
792 takes an extra flags argument for optional functionality. Currently,
793 the following flags are defined:
795 OBJ_BSEARCH_VALUE_ON_NOMATCH
796 This one gets OBJ_bsearch_ex() to return a pointer to the first
797 element where the comparing function returns a negative or zero
800 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
801 This one gets OBJ_bsearch_ex() to return a pointer to the first
802 element where the comparing function returns zero. This is useful
803 if there are more than one element where the comparing function
807 *) Make it possible to create self-signed certificates with 'openssl ca'
808 in such a way that the self-signed certificate becomes part of the
809 CA database and uses the same mechanisms for serial number generation
810 as all other certificate signing. The new flag '-selfsign' enables
811 this functionality. Adapt CA.sh and CA.pl.in.
814 *) Add functionality to check the public key of a certificate request
815 against a given private. This is useful to check that a certificate
816 request can be signed by that key (self-signing).
819 *) Make it possible to have multiple active certificates with the same
820 subject in the CA index file. This is done only if the keyword
821 'unique_subject' is set to 'no' in the main CA section (default
822 if 'CA_default') of the configuration file. The value is saved
823 with the database itself in a separate index attribute file,
824 named like the index file with '.attr' appended to the name.
827 *) Generate muti valued AVAs using '+' notation in config files for
831 *) Support for nameConstraints certificate extension.
834 *) Support for policyConstraints certificate extension.
837 *) Support for policyMappings certificate extension.
840 *) Make sure the default DSA_METHOD implementation only uses its
841 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
842 and change its own handlers to be NULL so as to remove unnecessary
843 indirection. This lets alternative implementations fallback to the
844 default implementation more easily.
847 *) Support for directoryName in GeneralName related extensions
851 *) Make it possible to link applications using Makefile.shared.
852 Make that possible even when linking against static libraries!
855 *) Support for single pass processing for S/MIME signing. This now
856 means that S/MIME signing can be done from a pipe, in addition
857 cleartext signing (multipart/signed type) is effectively streaming
858 and the signed data does not need to be all held in memory.
860 This is done with a new flag PKCS7_STREAM. When this flag is set
861 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
862 is done after the data is output (and digests calculated) in
866 *) Add full support for -rpath/-R, both in shared libraries and
867 applications, at least on the platforms where it's known how
871 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
872 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
873 will now compute a table of multiples of the generator that
874 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
875 faster (notably in the case of a single point multiplication,
877 [Nils Larsch, Bodo Moeller]
879 *) IPv6 support for certificate extensions. The various extensions
880 which use the IP:a.b.c.d can now take IPv6 addresses using the
881 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
885 *) Added an ENGINE that implements RSA by performing private key
886 exponentiations with the GMP library. The conversions to and from
887 GMP's mpz_t format aren't optimised nor are any montgomery forms
888 cached, and on x86 it appears OpenSSL's own performance has caught up.
889 However there are likely to be other architectures where GMP could
890 provide a boost. This ENGINE is not built in by default, but it can be
891 specified at Configure time and should be accompanied by the necessary
892 linker additions, eg;
893 ./config -DOPENSSL_USE_GMP -lgmp
896 *) "openssl engine" will not display ENGINE/DSO load failure errors when
897 testing availability of engines with "-t" - the old behaviour is
898 produced by increasing the feature's verbosity with "-tt".
901 *) ECDSA routines: under certain error conditions uninitialized BN objects
902 could be freed. Solution: make sure initialization is performed early
903 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
907 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
908 and DH_METHOD (eg. by ENGINE implementations) to override the normal
909 software implementations. For DSA and DH, parameter generation can
910 also be overriden by providing the appropriate method callbacks.
913 *) Change the "progress" mechanism used in key-generation and
914 primality testing to functions that take a new BN_GENCB pointer in
915 place of callback/argument pairs. The new API functions have "_ex"
916 postfixes and the older functions are reimplemented as wrappers for
917 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
918 declarations of the old functions to help (graceful) attempts to
919 migrate to the new functions. Also, the new key-generation API
920 functions operate on a caller-supplied key-structure and return
921 success/failure rather than returning a key or NULL - this is to
922 help make "keygen" another member function of RSA_METHOD etc.
924 Example for using the new callback interface:
926 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
930 BN_GENCB_set(&my_cb, my_callback, my_arg);
932 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
933 /* For the meaning of a, b in calls to my_callback(), see the
934 * documentation of the function that calls the callback.
935 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
936 * my_callback should return 1 if it wants BN_is_prime_ex()
937 * to continue, or 0 to stop.
942 *) Change the ZLIB compression method to be stateful, and make it
943 available to TLS with the number defined in
944 draft-ietf-tls-compression-04.txt.
947 *) Add the ASN.1 structures and functions for CertificatePair, which
948 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
950 CertificatePair ::= SEQUENCE {
951 forward [0] Certificate OPTIONAL,
952 reverse [1] Certificate OPTIONAL,
953 -- at least one of the pair shall be present -- }
955 Also implement the PEM functions to read and write certificate
956 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
958 This needed to be defined, mostly for the sake of the LDAP
959 attribute crossCertificatePair, but may prove useful elsewhere as
963 *) Make it possible to inhibit symlinking of shared libraries in
964 Makefile.shared, for Cygwin's sake.
967 *) Extend the BIGNUM API by creating a function
968 void BN_set_negative(BIGNUM *a, int neg);
969 and a macro that behave like
970 int BN_is_negative(const BIGNUM *a);
972 to avoid the need to access 'a->neg' directly in applications.
975 *) Implement fast modular reduction for pseudo-Mersenne primes
976 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
977 EC_GROUP_new_curve_GFp() will now automatically use this
979 [Nils Larsch <nla@trustcenter.de>]
981 *) Add new lock type (CRYPTO_LOCK_BN).
984 *) Change the ENGINE framework to automatically load engines
985 dynamically from specific directories unless they could be
986 found to already be built in or loaded. Move all the
987 current engines except for the cryptodev one to a new
989 The engines in engines/ are built as shared libraries if
990 the "shared" options was given to ./Configure or ./config.
991 Otherwise, they are inserted in libcrypto.a.
992 /usr/local/ssl/engines is the default directory for dynamic
993 engines, but that can be overriden at configure time through
994 the usual use of --prefix and/or --openssldir, and at run
995 time with the environment variable OPENSSL_ENGINES.
996 [Geoff Thorpe and Richard Levitte]
998 *) Add Makefile.shared, a helper makefile to build shared
999 libraries. Addapt Makefile.org.
1002 *) Add version info to Win32 DLLs.
1003 [Peter 'Luna' Runestig" <peter@runestig.com>]
1005 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1006 can be added using this API to created arbitrary PKCS#12
1007 files while avoiding the low level API.
1009 New options to PKCS12_create(), key or cert can be NULL and
1010 will then be omitted from the output file. The encryption
1011 algorithm NIDs can be set to -1 for no encryption, the mac
1012 iteration count can be set to 0 to omit the mac.
1014 Enhance pkcs12 utility by making the -nokeys and -nocerts
1015 options work when creating a PKCS#12 file. New option -nomac
1016 to omit the mac, NONE can be set for an encryption algorithm.
1017 New code is modified to use the enhanced PKCS12_create()
1018 instead of the low level API.
1021 *) Extend ASN1 encoder to support indefinite length constructed
1022 encoding. This can output sequences tags and octet strings in
1023 this form. Modify pk7_asn1.c to support indefinite length
1024 encoding. This is experimental and needs additional code to
1025 be useful, such as an ASN1 bio and some enhanced streaming
1028 Extend template encode functionality so that tagging is passed
1029 down to the template encoder.
1032 *) Let 'openssl req' fail if an argument to '-newkey' is not
1033 recognized instead of using RSA as a default.
1036 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1037 As these are not official, they are not included in "ALL";
1038 the "ECCdraft" ciphersuite group alias can be used to select them.
1039 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1041 *) Add ECDH engine support.
1042 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1044 *) Add ECDH in new directory crypto/ecdh/.
1045 [Douglas Stebila (Sun Microsystems Laboratories)]
1047 *) Let BN_rand_range() abort with an error after 100 iterations
1048 without success (which indicates a broken PRNG).
1051 *) Change BN_mod_sqrt() so that it verifies that the input value
1052 is really the square of the return value. (Previously,
1053 BN_mod_sqrt would show GIGO behaviour.)
1056 *) Add named elliptic curves over binary fields from X9.62, SECG,
1057 and WAP/WTLS; add OIDs that were still missing.
1059 [Sheueling Chang Shantz and Douglas Stebila
1060 (Sun Microsystems Laboratories)]
1062 *) Extend the EC library for elliptic curves over binary fields
1063 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1066 EC_GF2m_simple_method
1070 EC_GROUP_new_curve_GF2m
1071 EC_GROUP_set_curve_GF2m
1072 EC_GROUP_get_curve_GF2m
1073 EC_POINT_set_affine_coordinates_GF2m
1074 EC_POINT_get_affine_coordinates_GF2m
1075 EC_POINT_set_compressed_coordinates_GF2m
1077 Point compression for binary fields is disabled by default for
1078 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1081 As binary polynomials are represented as BIGNUMs, various members
1082 of the EC_GROUP and EC_POINT data structures can be shared
1083 between the implementations for prime fields and binary fields;
1084 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1085 are essentially identical to their ..._GFp counterparts.
1086 (For simplicity, the '..._GFp' prefix has been dropped from
1087 various internal method names.)
1089 An internal 'field_div' method (similar to 'field_mul' and
1090 'field_sqr') has been added; this is used only for binary fields.
1092 [Sheueling Chang Shantz and Douglas Stebila
1093 (Sun Microsystems Laboratories)]
1095 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1096 through methods ('mul', 'precompute_mult').
1098 The generic implementations (now internally called 'ec_wNAF_mul'
1099 and 'ec_wNAF_precomputed_mult') remain the default if these
1100 methods are undefined.
1102 [Sheueling Chang Shantz and Douglas Stebila
1103 (Sun Microsystems Laboratories)]
1105 *) New function EC_GROUP_get_degree, which is defined through
1106 EC_METHOD. For curves over prime fields, this returns the bit
1107 length of the modulus.
1109 [Sheueling Chang Shantz and Douglas Stebila
1110 (Sun Microsystems Laboratories)]
1112 *) New functions EC_GROUP_dup, EC_POINT_dup.
1113 (These simply call ..._new and ..._copy).
1115 [Sheueling Chang Shantz and Douglas Stebila
1116 (Sun Microsystems Laboratories)]
1118 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1119 Polynomials are represented as BIGNUMs (where the sign bit is not
1120 used) in the following functions [macros]:
1123 BN_GF2m_sub [= BN_GF2m_add]
1124 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1125 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1126 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1128 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1129 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1130 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1131 BN_GF2m_cmp [= BN_ucmp]
1133 (Note that only the 'mod' functions are actually for fields GF(2^m).
1134 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1136 For some functions, an the irreducible polynomial defining a
1137 field can be given as an 'unsigned int[]' with strictly
1138 decreasing elements giving the indices of those bits that are set;
1139 i.e., p[] represents the polynomial
1140 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1142 p[0] > p[1] > ... > p[k] = 0.
1143 This applies to the following functions:
1148 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1149 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1151 BN_GF2m_mod_sqrt_arr
1152 BN_GF2m_mod_solve_quad_arr
1156 Conversion can be performed by the following functions:
1161 bntest.c has additional tests for binary polynomial arithmetic.
1163 Two implementations for BN_GF2m_mod_div() are available.
1164 The default algorithm simply uses BN_GF2m_mod_inv() and
1165 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1166 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1167 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1169 [Sheueling Chang Shantz and Douglas Stebila
1170 (Sun Microsystems Laboratories)]
1172 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1173 functionality is disabled at compile-time.
1174 [Douglas Stebila <douglas.stebila@sun.com>]
1176 *) Change default behaviour of 'openssl asn1parse' so that more
1177 information is visible when viewing, e.g., a certificate:
1179 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1180 mode the content of non-printable OCTET STRINGs is output in a
1181 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1182 avoid the appearance of a printable string.
1183 [Nils Larsch <nla@trustcenter.de>]
1185 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1187 EC_GROUP_set_asn1_flag()
1188 EC_GROUP_get_asn1_flag()
1189 EC_GROUP_set_point_conversion_form()
1190 EC_GROUP_get_point_conversion_form()
1191 These control ASN1 encoding details:
1192 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1193 has been set to OPENSSL_EC_NAMED_CURVE.
1194 - Points are encoded in uncompressed form by default; options for
1195 asn1_for are as for point2oct, namely
1196 POINT_CONVERSION_COMPRESSED
1197 POINT_CONVERSION_UNCOMPRESSED
1198 POINT_CONVERSION_HYBRID
1200 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1203 EC_GROUP_get0_seed()
1204 EC_GROUP_get_seed_len()
1205 This is used only for ASN1 purposes (so far).
1206 [Nils Larsch <nla@trustcenter.de>]
1208 *) Add 'field_type' member to EC_METHOD, which holds the NID
1209 of the appropriate field type OID. The new function
1210 EC_METHOD_get_field_type() returns this value.
1211 [Nils Larsch <nla@trustcenter.de>]
1216 EC_POINT_point2hex()
1217 EC_POINT_hex2point()
1218 providing useful interfaces to EC_POINT_point2oct() and
1219 EC_POINT_oct2point().
1220 [Nils Larsch <nla@trustcenter.de>]
1222 *) Change internals of the EC library so that the functions
1223 EC_GROUP_set_generator()
1224 EC_GROUP_get_generator()
1225 EC_GROUP_get_order()
1226 EC_GROUP_get_cofactor()
1227 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1228 to methods, which would lead to unnecessary code duplication when
1229 adding different types of curves.
1230 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1232 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1233 arithmetic, and such that modified wNAFs are generated
1234 (which avoid length expansion in many cases).
1237 *) Add a function EC_GROUP_check_discriminant() (defined via
1238 EC_METHOD) that verifies that the curve discriminant is non-zero.
1240 Add a function EC_GROUP_check() that makes some sanity tests
1241 on a EC_GROUP, its generator and order. This includes
1242 EC_GROUP_check_discriminant().
1243 [Nils Larsch <nla@trustcenter.de>]
1245 *) Add ECDSA in new directory crypto/ecdsa/.
1247 Add applications 'openssl ecparam' and 'openssl ecdsa'
1248 (these are based on 'openssl dsaparam' and 'openssl dsa').
1250 ECDSA support is also included in various other files across the
1251 library. Most notably,
1252 - 'openssl req' now has a '-newkey ecdsa:file' option;
1253 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1254 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1255 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1256 them suitable for ECDSA where domain parameters must be
1257 extracted before the specific public key;
1258 - ECDSA engine support has been added.
1259 [Nils Larsch <nla@trustcenter.de>]
1261 *) Include some named elliptic curves, and add OIDs from X9.62,
1262 SECG, and WAP/WTLS. Each curve can be obtained from the new
1264 EC_GROUP_new_by_curve_name(),
1265 and the list of available named curves can be obtained with
1266 EC_get_builtin_curves().
1267 Also add a 'curve_name' member to EC_GROUP objects, which can be
1269 EC_GROUP_set_curve_name()
1270 EC_GROUP_get_curve_name()
1271 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1273 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1274 was actually never needed) and in BN_mul(). The removal in BN_mul()
1275 required a small change in bn_mul_part_recursive() and the addition
1276 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1277 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1278 bn_sub_words() and bn_add_words() except they take arrays with
1282 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1284 *) In the SSL/TLS server implementation, be strict about session ID
1285 context matching (which matters if an application uses a single
1286 external cache for different purposes). Previously,
1287 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1288 set. This did ensure strict client verification, but meant that,
1289 with applications using a single external cache for quite
1290 different requirements, clients could circumvent ciphersuite
1291 restrictions for a given session ID context by starting a session
1292 in a different context.
1295 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1297 *) Cleanse PEM buffers before freeing them since they may contain
1299 [Benjamin Bennett <ben@psc.edu>]
1301 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1302 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1303 authentication-only ciphersuites.
1306 *) Since AES128 and AES256 share a single mask bit in the logic of
1307 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1308 kludge to work properly if AES128 is available and AES256 isn't.
1311 *) Expand security boundary to match 1.1.1 module.
1314 *) Remove redundant features: hash file source, editing of test vectors
1315 modify fipsld to use external fips_premain.c signature.
1318 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1319 run algorithm test programs.
1322 *) Make algorithm test programs more tolerant of whitespace.
1325 *) Have SSL/TLS server implementation tolerate "mismatched" record
1326 protocol version while receiving ClientHello even if the
1327 ClientHello is fragmented. (The server can't insist on the
1328 particular protocol version it has chosen before the ServerHello
1329 message has informed the client about his choice.)
1332 *) Load error codes if they are not already present instead of using a
1333 static variable. This allows them to be cleanly unloaded and reloaded.
1336 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1338 *) Introduce limits to prevent malicious keys being able to
1339 cause a denial of service. (CVE-2006-2940)
1340 [Steve Henson, Bodo Moeller]
1342 *) Fix ASN.1 parsing of certain invalid structures that can result
1343 in a denial of service. (CVE-2006-2937) [Steve Henson]
1345 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1346 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1348 *) Fix SSL client code which could crash if connecting to a
1349 malicious SSLv2 server. (CVE-2006-4343)
1350 [Tavis Ormandy and Will Drewry, Google Security Team]
1352 *) Change ciphersuite string processing so that an explicit
1353 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1354 will no longer include "AES128-SHA"), and any other similar
1355 ciphersuite (same bitmap) from *other* protocol versions (so that
1356 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1357 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1358 changes from 0.9.8b and 0.9.8d.
1361 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1363 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1364 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1366 *) Change the Unix randomness entropy gathering to use poll() when
1367 possible instead of select(), since the latter has some
1368 undesirable limitations.
1369 [Darryl Miles via Richard Levitte and Bodo Moeller]
1371 *) Disable rogue ciphersuites:
1373 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1374 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1375 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1377 The latter two were purportedly from
1378 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1381 Also deactive the remaining ciphersuites from
1382 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1383 unofficial, and the ID has long expired.
1386 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1387 dual-core machines) and other potential thread-safety issues.
1390 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1392 *) Adapt fipsld and the build system to link against the validated FIPS
1393 module in FIPS mode.
1396 *) Fixes for VC++ 2005 build under Windows.
1399 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1400 from a Windows bash shell such as MSYS. It is autodetected from the
1401 "config" script when run from a VC++ environment. Modify standard VC++
1402 build to use fipscanister.o from the GNU make build.
1405 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1407 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1408 The value now differs depending on if you build for FIPS or not.
1409 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1410 safely run with a non-FIPSed libcrypto, as it may crash because of
1411 the difference induced by this change.
1414 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1416 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1417 (part of SSL_OP_ALL). This option used to disable the
1418 countermeasure against man-in-the-middle protocol-version
1419 rollback in the SSL 2.0 server implementation, which is a bad
1420 idea. (CVE-2005-2969)
1422 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1423 for Information Security, National Institute of Advanced Industrial
1424 Science and Technology [AIST], Japan)]
1426 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1427 mainly for FIPS compliance and not fully integrated at this stage.
1430 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1431 the exponentiation using a fixed-length exponent. (Otherwise,
1432 the information leaked through timing could expose the secret key
1433 after many signatures; cf. Bleichenbacher's attack on DSA with
1437 *) Make a new fixed-window mod_exp implementation the default for
1438 RSA, DSA, and DH private-key operations so that the sequence of
1439 squares and multiplies and the memory access pattern are
1440 independent of the particular secret key. This will mitigate
1441 cache-timing and potential related attacks.
1443 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1444 and this is automatically used by BN_mod_exp_mont() if the new flag
1445 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1446 will use this BN flag for private exponents unless the flag
1447 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1448 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1450 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1452 *) Change the client implementation for SSLv23_method() and
1453 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1454 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1455 (Previously, the SSL 2.0 backwards compatible Client Hello
1456 message format would be used even with SSL_OP_NO_SSLv2.)
1459 *) Add support for smime-type MIME parameter in S/MIME messages which some
1463 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1464 a threadsafe manner. Modify rsa code to use new function and add calls
1465 to dsa and dh code (which had race conditions before).
1468 *) Include the fixed error library code in the C error file definitions
1469 instead of fixing them up at runtime. This keeps the error code
1470 structures constant.
1473 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1475 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1478 *) Fixes for newer kerberos headers. NB: the casts are needed because
1479 the 'length' field is signed on one version and unsigned on another
1480 with no (?) obvious way to tell the difference, without these VC++
1481 complains. Also the "definition" of FAR (blank) is no longer included
1482 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1483 some needed definitions.
1486 *) Undo Cygwin change.
1489 *) Added support for proxy certificates according to RFC 3820.
1490 Because they may be a security thread to unaware applications,
1491 they must be explicitely allowed in run-time. See
1492 docs/HOWTO/proxy_certificates.txt for further information.
1495 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1497 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1498 server and client random values. Previously
1499 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1500 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1502 This change has negligible security impact because:
1504 1. Server and client random values still have 24 bytes of pseudo random
1507 2. Server and client random values are sent in the clear in the initial
1510 3. The master secret is derived using the premaster secret (48 bytes in
1511 size for static RSA ciphersuites) as well as client server and random
1514 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1517 [Stephen Henson, reported by UK NISCC]
1519 *) Use Windows randomness collection on Cygwin.
1522 *) Fix hang in EGD/PRNGD query when communication socket is closed
1523 prematurely by EGD/PRNGD.
1524 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1526 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1529 *) Back-port of selected performance improvements from development
1530 branch, as well as improved support for PowerPC platforms.
1533 *) Add lots of checks for memory allocation failure, error codes to indicate
1534 failure and freeing up memory if a failure occurs.
1535 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1537 *) Add new -passin argument to dgst.
1540 *) Perform some character comparisons of different types in X509_NAME_cmp:
1541 this is needed for some certificates that reencode DNs into UTF8Strings
1542 (in violation of RFC3280) and can't or wont issue name rollover
1546 *) Make an explicit check during certificate validation to see that
1547 the CA setting in each certificate on the chain is correct. As a
1548 side effect always do the following basic checks on extensions,
1549 not just when there's an associated purpose to the check:
1551 - if there is an unhandled critical extension (unless the user
1552 has chosen to ignore this fault)
1553 - if the path length has been exceeded (if one is set at all)
1554 - that certain extensions fit the associated purpose (if one has
1558 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1560 *) Avoid a race condition when CRLs are checked in a multi threaded
1561 environment. This would happen due to the reordering of the revoked
1562 entries during signature checking and serial number lookup. Now the
1563 encoding is cached and the serial number sort performed under a lock.
1564 Add new STACK function sk_is_sorted().
1567 *) Add Delta CRL to the extension code.
1570 *) Various fixes to s3_pkt.c so alerts are sent properly.
1571 [David Holmes <d.holmes@f5.com>]
1573 *) Reduce the chances of duplicate issuer name and serial numbers (in
1574 violation of RFC3280) using the OpenSSL certificate creation utilities.
1575 This is done by creating a random 64 bit value for the initial serial
1576 number when a serial number file is created or when a self signed
1577 certificate is created using 'openssl req -x509'. The initial serial
1578 number file is created using 'openssl x509 -next_serial' in CA.pl
1579 rather than being initialized to 1.
1582 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1584 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1585 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1586 [Joe Orton, Steve Henson]
1588 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1590 [Joe Orton, Steve Henson]
1592 *) Make it possible to have multiple active certificates with the same
1593 subject in the CA index file. This is done only if the keyword
1594 'unique_subject' is set to 'no' in the main CA section (default
1595 if 'CA_default') of the configuration file. The value is saved
1596 with the database itself in a separate index attribute file,
1597 named like the index file with '.attr' appended to the name.
1600 *) X509 verify fixes. Disable broken certificate workarounds when
1601 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1602 keyUsage extension present. Don't accept CRLs with unhandled critical
1603 extensions: since verify currently doesn't process CRL extensions this
1604 rejects a CRL with *any* critical extensions. Add new verify error codes
1608 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1609 A clarification of RFC2560 will require the use of OCTET STRINGs and
1610 some implementations cannot handle the current raw format. Since OpenSSL
1611 copies and compares OCSP nonces as opaque blobs without any attempt at
1612 parsing them this should not create any compatibility issues.
1615 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1616 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1617 this HMAC (and other) operations are several times slower than OpenSSL
1621 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1622 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1624 *) Use the correct content when signing type "other".
1627 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1629 *) Fix various bugs revealed by running the NISCC test suite:
1631 Stop out of bounds reads in the ASN1 code when presented with
1632 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1634 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1636 If verify callback ignores invalid public key errors don't try to check
1637 certificate signature with the NULL public key.
1641 *) New -ignore_err option in ocsp application to stop the server
1642 exiting on the first error in a request.
1645 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1646 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1650 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1651 extra data after the compression methods not only for TLS 1.0
1652 but also for SSL 3.0 (as required by the specification).
1653 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1655 *) Change X509_certificate_type() to mark the key as exported/exportable
1656 when it's 512 *bits* long, not 512 bytes.
1659 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1660 blocks during encryption.
1663 *) Various fixes to base64 BIO and non blocking I/O. On write
1664 flushes were not handled properly if the BIO retried. On read
1665 data was not being buffered properly and had various logic bugs.
1666 This also affects blocking I/O when the data being decoded is a
1670 *) Various S/MIME bugfixes and compatibility changes:
1671 output correct application/pkcs7 MIME type if
1672 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1673 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1674 of files as .eml work). Correctly handle very long lines in MIME
1678 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1680 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1681 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1682 a protocol version number mismatch like a decryption error
1683 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1686 *) Turn on RSA blinding by default in the default implementation
1687 to avoid a timing attack. Applications that don't want it can call
1688 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1689 They would be ill-advised to do so in most cases.
1690 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1692 *) Change RSA blinding code so that it works when the PRNG is not
1693 seeded (in this case, the secret RSA exponent is abused as
1694 an unpredictable seed -- if it is not unpredictable, there
1695 is no point in blinding anyway). Make RSA blinding thread-safe
1696 by remembering the creator's thread ID in rsa->blinding and
1697 having all other threads use local one-time blinding factors
1698 (this requires more computation than sharing rsa->blinding, but
1699 avoids excessive locking; and if an RSA object is not shared
1700 between threads, blinding will still be very fast).
1703 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1704 ENGINE as defaults for all supported algorithms irrespective of
1705 the 'flags' parameter. 'flags' is now honoured, so applications
1706 should make sure they are passing it correctly.
1709 *) Target "mingw" now allows native Windows code to be generated in
1710 the Cygwin environment as well as with the MinGW compiler.
1713 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1715 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1716 via timing by performing a MAC computation even if incorrrect
1717 block cipher padding has been found. This is a countermeasure
1718 against active attacks where the attacker has to distinguish
1719 between bad padding and a MAC verification error. (CVE-2003-0078)
1721 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1722 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1723 Martin Vuagnoux (EPFL, Ilion)]
1725 *) Make the no-err option work as intended. The intention with no-err
1726 is not to have the whole error stack handling routines removed from
1727 libcrypto, it's only intended to remove all the function name and
1728 reason texts, thereby removing some of the footprint that may not
1729 be interesting if those errors aren't displayed anyway.
1731 NOTE: it's still possible for any application or module to have it's
1732 own set of error texts inserted. The routines are there, just not
1733 used by default when no-err is given.
1736 *) Add support for FreeBSD on IA64.
1737 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1739 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1740 Kerberos function mit_des_cbc_cksum(). Before this change,
1741 the value returned by DES_cbc_cksum() was like the one from
1742 mit_des_cbc_cksum(), except the bytes were swapped.
1743 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1745 *) Allow an application to disable the automatic SSL chain building.
1746 Before this a rather primitive chain build was always performed in
1747 ssl3_output_cert_chain(): an application had no way to send the
1748 correct chain if the automatic operation produced an incorrect result.
1750 Now the chain builder is disabled if either:
1752 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1754 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1756 The reasoning behind this is that an application would not want the
1757 auto chain building to take place if extra chain certificates are
1758 present and it might also want a means of sending no additional
1759 certificates (for example the chain has two certificates and the
1763 *) Add the possibility to build without the ENGINE framework.
1764 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1766 *) Under Win32 gmtime() can return NULL: check return value in
1767 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1770 *) DSA routines: under certain error conditions uninitialized BN objects
1771 could be freed. Solution: make sure initialization is performed early
1772 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1773 Nils Larsch <nla@trustcenter.de> via PR#459)
1776 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1777 checked on reconnect on the client side, therefore session resumption
1778 could still fail with a "ssl session id is different" error. This
1779 behaviour is masked when SSL_OP_ALL is used due to
1780 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1781 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1782 followup to PR #377.
1785 *) IA-32 assembler support enhancements: unified ELF targets, support
1786 for SCO/Caldera platforms, fix for Cygwin shared build.
1789 *) Add support for FreeBSD on sparc64. As a consequence, support for
1790 FreeBSD on non-x86 processors is separate from x86 processors on
1791 the config script, much like the NetBSD support.
1792 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1794 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1796 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1799 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1800 code (06) was taken as the first octet of the session ID and the last
1801 octet was ignored consequently. As a result SSLv2 client side session
1802 caching could not have worked due to the session ID mismatch between
1804 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1808 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1809 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1813 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1814 seems that in spite of existing for more than a year, many application
1815 author have done nothing to provide the necessary callbacks, which
1816 means that this particular engine will not work properly anywhere.
1817 This is a very unfortunate situation which forces us, in the name
1818 of usability, to give the hw_ncipher.c a static lock, which is part
1820 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1821 appear in 0.9.8 or later. We EXPECT application authors to have
1822 dealt properly with this when 0.9.8 is released (unless we actually
1823 make such changes in the libcrypto locking code that changes will
1824 have to be made anyway).
1827 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1828 octets have been read, EOF or an error occurs. Without this change
1829 some truncated ASN1 structures will not produce an error.
1832 *) Disable Heimdal support, since it hasn't been fully implemented.
1833 Still give the possibility to force the use of Heimdal, but with
1834 warnings and a request that patches get sent to openssl-dev.
1837 *) Add the VC-CE target, introduce the WINCE sysname, and add
1838 INSTALL.WCE and appropriate conditionals to make it build.
1839 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1841 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1842 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1843 edit numbers of the version.
1844 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1846 *) Introduce safe string copy and catenation functions
1847 (BUF_strlcpy() and BUF_strlcat()).
1848 [Ben Laurie (CHATS) and Richard Levitte]
1850 *) Avoid using fixed-size buffers for one-line DNs.
1851 [Ben Laurie (CHATS)]
1853 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1854 resizing buffers containing secrets, and use where appropriate.
1855 [Ben Laurie (CHATS)]
1857 *) Avoid using fixed size buffers for configuration file location.
1858 [Ben Laurie (CHATS)]
1860 *) Avoid filename truncation for various CA files.
1861 [Ben Laurie (CHATS)]
1863 *) Use sizeof in preference to magic numbers.
1864 [Ben Laurie (CHATS)]
1866 *) Avoid filename truncation in cert requests.
1867 [Ben Laurie (CHATS)]
1869 *) Add assertions to check for (supposedly impossible) buffer
1871 [Ben Laurie (CHATS)]
1873 *) Don't cache truncated DNS entries in the local cache (this could
1874 potentially lead to a spoofing attack).
1875 [Ben Laurie (CHATS)]
1877 *) Fix various buffers to be large enough for hex/decimal
1878 representations in a platform independent manner.
1879 [Ben Laurie (CHATS)]
1881 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1882 resizing buffers containing secrets, and use where appropriate.
1883 [Ben Laurie (CHATS)]
1885 *) Add BIO_indent() to avoid much slightly worrying code to do
1887 [Ben Laurie (CHATS)]
1889 *) Convert sprintf()/BIO_puts() to BIO_printf().
1890 [Ben Laurie (CHATS)]
1892 *) buffer_gets() could terminate with the buffer only half
1894 [Ben Laurie (CHATS)]
1896 *) Add assertions to prevent user-supplied crypto functions from
1897 overflowing internal buffers by having large block sizes, etc.
1898 [Ben Laurie (CHATS)]
1900 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1902 [Ben Laurie (CHATS)]
1904 *) Eliminate unused copy of key in RC4.
1905 [Ben Laurie (CHATS)]
1907 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1908 [Ben Laurie (CHATS)]
1910 *) Fix off-by-one error in EGD path.
1911 [Ben Laurie (CHATS)]
1913 *) If RANDFILE path is too long, ignore instead of truncating.
1914 [Ben Laurie (CHATS)]
1916 *) Eliminate unused and incorrectly sized X.509 structure
1918 [Ben Laurie (CHATS)]
1920 *) Eliminate unused and dangerous function knumber().
1921 [Ben Laurie (CHATS)]
1923 *) Eliminate unused and dangerous structure, KSSL_ERR.
1924 [Ben Laurie (CHATS)]
1926 *) Protect against overlong session ID context length in an encoded
1927 session object. Since these are local, this does not appear to be
1929 [Ben Laurie (CHATS)]
1931 *) Change from security patch (see 0.9.6e below) that did not affect
1932 the 0.9.6 release series:
1934 Remote buffer overflow in SSL3 protocol - an attacker could
1935 supply an oversized master key in Kerberos-enabled versions.
1937 [Ben Laurie (CHATS)]
1939 *) Change the SSL kerb5 codes to match RFC 2712.
1942 *) Make -nameopt work fully for req and add -reqopt switch.
1943 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1945 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1946 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1948 *) Make sure tests can be performed even if the corresponding algorithms
1949 have been removed entirely. This was also the last step to make
1950 OpenSSL compilable with DJGPP under all reasonable conditions.
1951 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1953 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1954 to allow version independent disabling of normally unselected ciphers,
1955 which may be activated as a side-effect of selecting a single cipher.
1957 (E.g., cipher list string "RSA" enables ciphersuites that are left
1958 out of "ALL" because they do not provide symmetric encryption.
1959 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1960 [Lutz Jaenicke, Bodo Moeller]
1962 *) Add appropriate support for separate platform-dependent build
1963 directories. The recommended way to make a platform-dependent
1964 build directory is the following (tested on Linux), maybe with
1967 # Place yourself outside of the OpenSSL source tree. In
1968 # this example, the environment variable OPENSSL_SOURCE
1969 # is assumed to contain the absolute OpenSSL source directory.
1970 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1971 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1972 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1973 mkdir -p `dirname $F`
1974 ln -s $OPENSSL_SOURCE/$F $F
1977 To be absolutely sure not to disturb the source tree, a "make clean"
1978 is a good thing. If it isn't successfull, don't worry about it,
1979 it probably means the source directory is very clean.
1982 *) Make sure any ENGINE control commands make local copies of string
1983 pointers passed to them whenever necessary. Otherwise it is possible
1984 the caller may have overwritten (or deallocated) the original string
1985 data when a later ENGINE operation tries to use the stored values.
1986 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1988 *) Improve diagnostics in file reading and command-line digests.
1989 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1991 *) Add AES modes CFB and OFB to the object database. Correct an
1992 error in AES-CFB decryption.
1995 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1996 allows existing EVP_CIPHER_CTX structures to be reused after
1997 calling EVP_*Final(). This behaviour is used by encryption
1998 BIOs and some applications. This has the side effect that
1999 applications must explicitly clean up cipher contexts with
2000 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2003 *) Check the values of dna and dnb in bn_mul_recursive before calling
2004 bn_mul_comba (a non zero value means the a or b arrays do not contain
2005 n2 elements) and fallback to bn_mul_normal if either is not zero.
2008 *) Fix escaping of non-ASCII characters when using the -subj option
2009 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2012 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2013 form for "surname", serialNumber has no short form.
2014 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2015 therefore remove "mail" short name for "internet 7".
2016 The OID for unique identifiers in X509 certificates is
2017 x500UniqueIdentifier, not uniqueIdentifier.
2018 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2021 *) Add an "init" command to the ENGINE config module and auto initialize
2022 ENGINEs. Without any "init" command the ENGINE will be initialized
2023 after all ctrl commands have been executed on it. If init=1 the
2024 ENGINE is initailized at that point (ctrls before that point are run
2025 on the uninitialized ENGINE and after on the initialized one). If
2026 init=0 then the ENGINE will not be iniatialized at all.
2029 *) Fix the 'app_verify_callback' interface so that the user-defined
2030 argument is actually passed to the callback: In the
2031 SSL_CTX_set_cert_verify_callback() prototype, the callback
2032 declaration has been changed from
2035 int (*cb)(X509_STORE_CTX *,void *);
2036 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2037 i=s->ctx->app_verify_callback(&ctx)
2038 has been changed into
2039 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2041 To update applications using SSL_CTX_set_cert_verify_callback(),
2042 a dummy argument can be added to their callback functions.
2043 [D. K. Smetters <smetters@parc.xerox.com>]
2045 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2046 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2048 *) Add and OPENSSL_LOAD_CONF define which will cause
2049 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2050 This allows older applications to transparently support certain
2051 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2052 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2053 load the config file and OPENSSL_add_all_algorithms_conf() which will
2054 always load it have also been added.
2057 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2058 Adjust NIDs and EVP layer.
2059 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2061 *) Config modules support in openssl utility.
2063 Most commands now load modules from the config file,
2064 though in a few (such as version) this isn't done
2065 because it couldn't be used for anything.
2067 In the case of ca and req the config file used is
2068 the same as the utility itself: that is the -config
2069 command line option can be used to specify an
2073 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2074 use "openssl_conf" if filename is NULL use default openssl config file.
2077 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2078 config section name. Add a new flag to tolerate a missing config file
2079 and move code to CONF_modules_load_file().
2082 *) Support for crypto accelerator cards from Accelerated Encryption
2083 Processing, www.aep.ie. (Use engine 'aep')
2084 The support was copied from 0.9.6c [engine] and adapted/corrected
2085 to work with the new engine framework.
2086 [AEP Inc. and Richard Levitte]
2088 *) Support for SureWare crypto accelerator cards from Baltimore
2089 Technologies. (Use engine 'sureware')
2090 The support was copied from 0.9.6c [engine] and adapted
2091 to work with the new engine framework.
2094 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2095 make the newer ENGINE framework commands for the CHIL engine work.
2096 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2098 *) Make it possible to produce shared libraries on ReliantUNIX.
2099 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2101 *) Add the configuration target debug-linux-ppro.
2102 Make 'openssl rsa' use the general key loading routines
2103 implemented in apps.c, and make those routines able to
2104 handle the key format FORMAT_NETSCAPE and the variant
2106 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2108 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2109 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2111 *) Add -keyform to rsautl, and document -engine.
2112 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2114 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2115 BIO_R_NO_SUCH_FILE error code rather than the generic
2116 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2119 *) Add new functions
2121 ERR_peek_last_error_line
2122 ERR_peek_last_error_line_data.
2123 These are similar to
2126 ERR_peek_error_line_data,
2127 but report on the latest error recorded rather than the first one
2128 still in the error queue.
2129 [Ben Laurie, Bodo Moeller]
2131 *) default_algorithms option in ENGINE config module. This allows things
2133 default_algorithms = ALL
2134 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2137 *) Prelminary ENGINE config module.
2140 *) New experimental application configuration code.
2143 *) Change the AES code to follow the same name structure as all other
2144 symmetric ciphers, and behave the same way. Move everything to
2145 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2146 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2148 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2149 [Ben Laurie and Theo de Raadt]
2151 *) Add option to output public keys in req command.
2152 [Massimiliano Pala madwolf@openca.org]
2154 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2155 (up to about 10% better than before for P-192 and P-224).
2158 *) New functions/macros
2160 SSL_CTX_set_msg_callback(ctx, cb)
2161 SSL_CTX_set_msg_callback_arg(ctx, arg)
2162 SSL_set_msg_callback(ssl, cb)
2163 SSL_set_msg_callback_arg(ssl, arg)
2165 to request calling a callback function
2167 void cb(int write_p, int version, int content_type,
2168 const void *buf, size_t len, SSL *ssl, void *arg)
2170 whenever a protocol message has been completely received
2171 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2172 protocol version according to which the SSL library interprets
2173 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2174 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2175 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2176 specification (change_cipher_spec(20), alert(21), handshake(22)).
2177 'buf' and 'len' point to the actual message, 'ssl' to the
2178 SSL object, and 'arg' is the application-defined value set by
2179 SSL[_CTX]_set_msg_callback_arg().
2181 'openssl s_client' and 'openssl s_server' have new '-msg' options
2182 to enable a callback that displays all protocol messages.
2185 *) Change the shared library support so shared libraries are built as
2186 soon as the corresponding static library is finished, and thereby get
2187 openssl and the test programs linked against the shared library.
2188 This still only happens when the keyword "shard" has been given to
2189 the configuration scripts.
2191 NOTE: shared library support is still an experimental thing, and
2192 backward binary compatibility is still not guaranteed.
2193 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2195 *) Add support for Subject Information Access extension.
2196 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2198 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2199 additional bytes when new memory had to be allocated, not just
2200 when reusing an existing buffer.
2203 *) New command line and configuration option 'utf8' for the req command.
2204 This allows field values to be specified as UTF8 strings.
2207 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2208 runs for the former and machine-readable output for the latter.
2211 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2212 of the e-mail address in the DN (i.e., it will go into a certificate
2213 extension only). The new configuration file option 'email_in_dn = no'
2214 has the same effect.
2215 [Massimiliano Pala madwolf@openca.org]
2217 *) Change all functions with names starting with des_ to be starting
2218 with DES_ instead. Add wrappers that are compatible with libdes,
2219 but are named _ossl_old_des_*. Finally, add macros that map the
2220 des_* symbols to the corresponding _ossl_old_des_* if libdes
2221 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2222 desired, the des_* symbols will be mapped to DES_*, with one
2225 Since we provide two compatibility mappings, the user needs to
2226 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2227 compatibility is desired. The default (i.e., when that macro
2228 isn't defined) is OpenSSL 0.9.6c compatibility.
2230 There are also macros that enable and disable the support of old
2231 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2232 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2233 are defined, the default will apply: to support the old des routines.
2235 In either case, one must include openssl/des.h to get the correct
2236 definitions. Do not try to just include openssl/des_old.h, that
2239 NOTE: This is a major break of an old API into a new one. Software
2240 authors are encouraged to switch to the DES_ style functions. Some
2241 time in the future, des_old.h and the libdes compatibility functions
2242 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2243 default), and then completely removed.
2246 *) Test for certificates which contain unsupported critical extensions.
2247 If such a certificate is found during a verify operation it is
2248 rejected by default: this behaviour can be overridden by either
2249 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2250 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2251 X509_supported_extension() has also been added which returns 1 if a
2252 particular extension is supported.
2255 *) Modify the behaviour of EVP cipher functions in similar way to digests
2256 to retain compatibility with existing code.
2259 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2260 compatibility with existing code. In particular the 'ctx' parameter does
2261 not have to be to be initialized before the call to EVP_DigestInit() and
2262 it is tidied up after a call to EVP_DigestFinal(). New function
2263 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2264 EVP_MD_CTX_copy() changed to not require the destination to be
2265 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2266 requires the destination to be valid.
2268 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2269 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2272 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2273 so that complete 'Handshake' protocol structures are kept in memory
2274 instead of overwriting 'msg_type' and 'length' with 'body' data.
2277 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2278 [Massimo Santin via Richard Levitte]
2280 *) Major restructuring to the underlying ENGINE code. This includes
2281 reduction of linker bloat, separation of pure "ENGINE" manipulation
2282 (initialisation, etc) from functionality dealing with implementations
2283 of specific crypto iterfaces. This change also introduces integrated
2284 support for symmetric ciphers and digest implementations - so ENGINEs
2285 can now accelerate these by providing EVP_CIPHER and EVP_MD
2286 implementations of their own. This is detailed in crypto/engine/README
2287 as it couldn't be adequately described here. However, there are a few
2288 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2289 were changed in the original introduction of ENGINE code have now
2290 reverted back - the hooking from this code to ENGINE is now a good
2291 deal more passive and at run-time, operations deal directly with
2292 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2293 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2294 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2295 they were not being used by the framework as there is no concept of a
2296 BIGNUM_METHOD and they could not be generalised to the new
2297 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2298 ENGINE_cpy() has been removed as it cannot be consistently defined in
2302 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2305 *) Change mkdef.pl to sort symbols that get the same entry number,
2306 and make sure the automatically generated functions ERR_load_*
2307 become part of libeay.num as well.
2310 *) New function SSL_renegotiate_pending(). This returns true once
2311 renegotiation has been requested (either SSL_renegotiate() call
2312 or HelloRequest/ClientHello receveived from the peer) and becomes
2313 false once a handshake has been completed.
2314 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2315 sends a HelloRequest, but does not ensure that a handshake takes
2316 place. SSL_renegotiate_pending() is useful for checking if the
2317 client has followed the request.)
2320 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2321 By default, clients may request session resumption even during
2322 renegotiation (if session ID contexts permit); with this option,
2323 session resumption is possible only in the first handshake.
2325 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2326 more bits available for options that should not be part of
2327 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2330 *) Add some demos for certificate and certificate request creation.
2333 *) Make maximum certificate chain size accepted from the peer application
2334 settable (SSL*_get/set_max_cert_list()), as proposed by
2335 "Douglas E. Engert" <deengert@anl.gov>.
2338 *) Add support for shared libraries for Unixware-7
2339 (Boyd Lynn Gerber <gerberb@zenez.com>).
2342 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2343 be done prior to destruction. Use this to unload error strings from
2344 ENGINEs that load their own error strings. NB: This adds two new API
2345 functions to "get" and "set" this destroy handler in an ENGINE.
2348 *) Alter all existing ENGINE implementations (except "openssl" and
2349 "openbsd") to dynamically instantiate their own error strings. This
2350 makes them more flexible to be built both as statically-linked ENGINEs
2351 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2352 Also, add stub code to each that makes building them as self-contained
2353 shared-libraries easier (see README.ENGINE).
2356 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2357 implementations into applications that are completely implemented in
2358 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2359 commands that can be used to configure what shared-library to load and
2360 to control aspects of the way it is handled. Also, made an update to
2361 the README.ENGINE file that brings its information up-to-date and
2362 provides some information and instructions on the "dynamic" ENGINE
2363 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2366 *) Make it possible to unload ranges of ERR strings with a new
2367 "ERR_unload_strings" function.
2370 *) Add a copy() function to EVP_MD.
2373 *) Make EVP_MD routines take a context pointer instead of just the
2374 md_data void pointer.
2377 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2378 that the digest can only process a single chunk of data
2379 (typically because it is provided by a piece of
2380 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2381 is only going to provide a single chunk of data, and hence the
2382 framework needn't accumulate the data for oneshot drivers.
2385 *) As with "ERR", make it possible to replace the underlying "ex_data"
2386 functions. This change also alters the storage and management of global
2387 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2388 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2389 index counters. The API functions that use this state have been changed
2390 to take a "class_index" rather than pointers to the class's local STACK
2391 and counter, and there is now an API function to dynamically create new
2392 classes. This centralisation allows us to (a) plug a lot of the
2393 thread-safety problems that existed, and (b) makes it possible to clean
2394 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2395 such data would previously have always leaked in application code and
2396 workarounds were in place to make the memory debugging turn a blind eye
2397 to it. Application code that doesn't use this new function will still
2398 leak as before, but their memory debugging output will announce it now
2399 rather than letting it slide.
2401 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2402 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2403 has a return value to indicate success or failure.
2406 *) Make it possible to replace the underlying "ERR" functions such that the
2407 global state (2 LHASH tables and 2 locks) is only used by the "default"
2408 implementation. This change also adds two functions to "get" and "set"
2409 the implementation prior to it being automatically set the first time
2410 any other ERR function takes place. Ie. an application can call "get",
2411 pass the return value to a module it has just loaded, and that module
2412 can call its own "set" function using that value. This means the
2413 module's "ERR" operations will use (and modify) the error state in the
2414 application and not in its own statically linked copy of OpenSSL code.
2417 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2418 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2419 the operation, and provides a more encapsulated way for external code
2420 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2421 to use these functions rather than manually incrementing the counts.
2423 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2426 *) Add EVP test program.
2429 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2432 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2433 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2434 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2435 These allow a CRL to be built without having to access X509_CRL fields
2436 directly. Modify 'ca' application to use new functions.
2439 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2440 bug workarounds. Rollback attack detection is a security feature.
2441 The problem will only arise on OpenSSL servers when TLSv1 is not
2442 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2443 Software authors not wanting to support TLSv1 will have special reasons
2444 for their choice and can explicitly enable this option.
2445 [Bodo Moeller, Lutz Jaenicke]
2447 *) Rationalise EVP so it can be extended: don't include a union of
2448 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2449 (similar to those existing for EVP_CIPHER_CTX).
2454 EVP_MD_CTX_init(&md); /* new function call */
2455 EVP_DigestInit(&md, EVP_sha1());
2456 EVP_DigestUpdate(&md, in, len);
2457 EVP_DigestFinal(&md, out, NULL);
2458 EVP_MD_CTX_cleanup(&md); /* new function call */
2462 *) Make DES key schedule conform to the usual scheme, as well as
2463 correcting its structure. This means that calls to DES functions
2464 now have to pass a pointer to a des_key_schedule instead of a
2465 plain des_key_schedule (which was actually always a pointer
2468 des_key_schedule ks;
2470 des_set_key_checked(..., &ks);
2471 des_ncbc_encrypt(..., &ks, ...);
2473 (Note that a later change renames 'des_...' into 'DES_...'.)
2476 *) Initial reduction of linker bloat: the use of some functions, such as
2477 PEM causes large amounts of unused functions to be linked in due to
2478 poor organisation. For example pem_all.c contains every PEM function
2479 which has a knock on effect of linking in large amounts of (unused)
2480 ASN1 code. Grouping together similar functions and splitting unrelated
2481 functions prevents this.
2484 *) Cleanup of EVP macros.
2487 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2488 correct _ecb suffix.
2491 *) Add initial OCSP responder support to ocsp application. The
2492 revocation information is handled using the text based index
2493 use by the ca application. The responder can either handle
2494 requests generated internally, supplied in files (for example
2495 via a CGI script) or using an internal minimal server.
2498 *) Add configuration choices to get zlib compression for TLS.
2501 *) Changes to Kerberos SSL for RFC 2712 compliance:
2502 1. Implemented real KerberosWrapper, instead of just using
2503 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2504 2. Implemented optional authenticator field of KerberosWrapper.
2506 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2507 and authenticator structs; see crypto/krb5/.
2509 Generalized Kerberos calls to support multiple Kerberos libraries.
2510 [Vern Staats <staatsvr@asc.hpc.mil>,
2511 Jeffrey Altman <jaltman@columbia.edu>
2512 via Richard Levitte]
2514 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2515 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2516 values for each of the key sizes rather than having just
2517 parameters (and 'speed' generating keys each time).
2520 *) Speed up EVP routines.
2523 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2524 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2525 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2526 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2528 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2529 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2530 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2533 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2535 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2538 *) Added the OS2-EMX target.
2539 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2541 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2542 to support NCONF routines in extension code. New function CONF_set_nconf()
2543 to allow functions which take an NCONF to also handle the old LHASH
2544 structure: this means that the old CONF compatible routines can be
2545 retained (in particular wrt extensions) without having to duplicate the
2546 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2549 *) Enhance the general user interface with mechanisms for inner control
2550 and with possibilities to have yes/no kind of prompts.
2553 *) Change all calls to low level digest routines in the library and
2554 applications to use EVP. Add missing calls to HMAC_cleanup() and
2555 don't assume HMAC_CTX can be copied using memcpy().
2556 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2558 *) Add the possibility to control engines through control names but with
2559 arbitrary arguments instead of just a string.
2560 Change the key loaders to take a UI_METHOD instead of a callback
2561 function pointer. NOTE: this breaks binary compatibility with earlier
2562 versions of OpenSSL [engine].
2563 Adapt the nCipher code for these new conditions and add a card insertion
2567 *) Enhance the general user interface with mechanisms to better support
2568 dialog box interfaces, application-defined prompts, the possibility
2569 to use defaults (for example default passwords from somewhere else)
2570 and interrupts/cancellations.
2573 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2574 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2577 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2578 tidy up some unnecessarily weird code in 'sk_new()').
2579 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2581 *) Change the key loading routines for ENGINEs to use the same kind
2582 callback (pem_password_cb) as all other routines that need this
2586 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2587 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2588 than this minimum value is recommended.
2591 *) New random seeder for OpenVMS, using the system process statistics
2592 that are easily reachable.
2595 *) Windows apparently can't transparently handle global
2596 variables defined in DLLs. Initialisations such as:
2598 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2600 wont compile. This is used by the any applications that need to
2601 declare their own ASN1 modules. This was fixed by adding the option
2602 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2603 needed for static libraries under Win32.
2606 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2607 setting of purpose and trust fields. New X509_STORE trust and
2608 purpose functions and tidy up setting in other SSL functions.
2611 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2612 structure. These are inherited by X509_STORE_CTX when it is
2613 initialised. This allows various defaults to be set in the
2614 X509_STORE structure (such as flags for CRL checking and custom
2615 purpose or trust settings) for functions which only use X509_STORE_CTX
2616 internally such as S/MIME.
2618 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2619 trust settings if they are not set in X509_STORE. This allows X509_STORE
2620 purposes and trust (in S/MIME for example) to override any set by default.
2622 Add command line options for CRL checking to smime, s_client and s_server
2626 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2627 are set then the CRL is looked up in the X509_STORE structure and
2628 its validity and signature checked, then if the certificate is found
2629 in the CRL the verify fails with a revoked error.
2631 Various new CRL related callbacks added to X509_STORE_CTX structure.
2633 Command line options added to 'verify' application to support this.
2635 This needs some additional work, such as being able to handle multiple
2636 CRLs with different times, extension based lookup (rather than just
2637 by subject name) and ultimately more complete V2 CRL extension
2641 *) Add a general user interface API (crypto/ui/). This is designed
2642 to replace things like des_read_password and friends (backward
2643 compatibility functions using this new API are provided).
2644 The purpose is to remove prompting functions from the DES code
2645 section as well as provide for prompting through dialog boxes in
2646 a window system and the like.
2649 *) Add "ex_data" support to ENGINE so implementations can add state at a
2650 per-structure level rather than having to store it globally.
2653 *) Make it possible for ENGINE structures to be copied when retrieved by
2654 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2655 This causes the "original" ENGINE structure to act like a template,
2656 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2657 operational state can be localised to each ENGINE structure, despite the
2658 fact they all share the same "methods". New ENGINE structures returned in
2659 this case have no functional references and the return value is the single
2660 structural reference. This matches the single structural reference returned
2661 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2665 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2666 needs to match any other type at all we need to manually clear the
2670 *) Changes to the "openssl engine" utility to include;
2671 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2672 about an ENGINE's available control commands.
2673 - executing control commands from command line arguments using the
2674 '-pre' and '-post' switches. '-post' is only used if '-t' is
2675 specified and the ENGINE is successfully initialised. The syntax for
2676 the individual commands are colon-separated, for example;
2677 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2680 *) New dynamic control command support for ENGINEs. ENGINEs can now
2681 declare their own commands (numbers), names (strings), descriptions,
2682 and input types for run-time discovery by calling applications. A
2683 subset of these commands are implicitly classed as "executable"
2684 depending on their input type, and only these can be invoked through
2685 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2686 can be based on user input, config files, etc). The distinction is
2687 that "executable" commands cannot return anything other than a boolean
2688 result and can only support numeric or string input, whereas some
2689 discoverable commands may only be for direct use through
2690 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2691 pointers, or other custom uses. The "executable" commands are to
2692 support parameterisations of ENGINE behaviour that can be
2693 unambiguously defined by ENGINEs and used consistently across any
2694 OpenSSL-based application. Commands have been added to all the
2695 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2696 control over shared-library paths without source code alterations.
2699 *) Changed all ENGINE implementations to dynamically allocate their
2700 ENGINEs rather than declaring them statically. Apart from this being
2701 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2702 this also allows the implementations to compile without using the
2703 internal engine_int.h header.
2706 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2707 'const' value. Any code that should be able to modify a RAND_METHOD
2708 should already have non-const pointers to it (ie. they should only
2709 modify their own ones).
2712 *) Made a variety of little tweaks to the ENGINE code.
2713 - "atalla" and "ubsec" string definitions were moved from header files
2714 to C code. "nuron" string definitions were placed in variables
2715 rather than hard-coded - allowing parameterisation of these values
2716 later on via ctrl() commands.
2717 - Removed unused "#if 0"'d code.
2718 - Fixed engine list iteration code so it uses ENGINE_free() to release
2719 structural references.
2720 - Constified the RAND_METHOD element of ENGINE structures.
2721 - Constified various get/set functions as appropriate and added
2722 missing functions (including a catch-all ENGINE_cpy that duplicates
2723 all ENGINE values onto a new ENGINE except reference counts/state).
2724 - Removed NULL parameter checks in get/set functions. Setting a method
2725 or function to NULL is a way of cancelling out a previously set
2726 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2727 and doesn't justify the extra error symbols and code.
2728 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2729 flags from engine_int.h to engine.h.
2730 - Changed prototypes for ENGINE handler functions (init(), finish(),
2731 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2734 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2735 to the algorithm using long division. The binary algorithm can be
2736 used only if the modulus is odd. On 32-bit systems, it is faster
2737 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2738 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2739 up to 450 bits. In 64-bit environments, the binary algorithm
2740 appears to be advantageous for much longer moduli; here we use it
2741 for moduli up to 2048 bits.
2744 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2745 could not support the combine flag in choice fields.
2748 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2749 extensions from a certificate request to the certificate.
2752 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2753 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2754 file: this allows the display of the certificate about to be
2755 signed to be customised, to allow certain fields to be included
2756 or excluded and extension details. The old system didn't display
2757 multicharacter strings properly, omitted fields not in the policy
2758 and couldn't display additional details such as extensions.
2761 *) Function EC_POINTs_mul for multiple scalar multiplication
2762 of an arbitrary number of elliptic curve points
2763 \sum scalars[i]*points[i],
2764 optionally including the generator defined for the EC_GROUP:
2765 scalar*generator + \sum scalars[i]*points[i].
2767 EC_POINT_mul is a simple wrapper function for the typical case
2768 that the point list has just one item (besides the optional
2772 *) First EC_METHODs for curves over GF(p):
2774 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2775 operations and provides various method functions that can also
2776 operate with faster implementations of modular arithmetic.
2778 EC_GFp_mont_method() reuses most functions that are part of
2779 EC_GFp_simple_method, but uses Montgomery arithmetic.
2781 [Bodo Moeller; point addition and point doubling
2782 implementation directly derived from source code provided by
2783 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2785 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2786 crypto/ec/ec_lib.c):
2788 Curves are EC_GROUP objects (with an optional group generator)
2789 based on EC_METHODs that are built into the library.
2791 Points are EC_POINT objects based on EC_GROUP objects.
2793 Most of the framework would be able to handle curves over arbitrary
2794 finite fields, but as there are no obvious types for fields other
2795 than GF(p), some functions are limited to that for now.
2798 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2799 that the file contains a complete HTTP response.
2802 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2803 change the def and num file printf format specifier from "%-40sXXX"
2804 to "%-39s XXX". The latter will always guarantee a space after the
2805 field while the former will cause them to run together if the field
2806 is 40 of more characters long.
2809 *) Constify the cipher and digest 'method' functions and structures
2810 and modify related functions to take constant EVP_MD and EVP_CIPHER
2814 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2815 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2818 *) Modify EVP_Digest*() routines so they now return values. Although the
2819 internal software routines can never fail additional hardware versions
2823 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2825 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2826 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2829 ERR_R_NESTED_ASN1_ERROR
2831 ERR_R_MISSING_ASN1_EOS
2832 were 4 .. 9, conflicting with
2833 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2835 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2836 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2838 Add new error code 'ERR_R_INTERNAL_ERROR'.
2841 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2845 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2846 sets the subject name for a new request or supersedes the
2847 subject name in a given request. Formats that can be parsed are
2848 'CN=Some Name, OU=myOU, C=IT'
2850 'CN=Some Name/OU=myOU/C=IT'.
2852 Add options '-batch' and '-verbose' to 'openssl req'.
2853 [Massimiliano Pala <madwolf@hackmasters.net>]
2855 *) Introduce the possibility to access global variables through
2856 functions on platform were that's the best way to handle exporting
2857 global variables in shared libraries. To enable this functionality,
2858 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2859 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2860 is normally done by Configure or something similar).
2862 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2863 in the source file (foo.c) like this:
2865 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2866 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2868 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2869 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2871 OPENSSL_DECLARE_GLOBAL(int,foo);
2872 #define foo OPENSSL_GLOBAL_REF(foo)
2873 OPENSSL_DECLARE_GLOBAL(double,bar);
2874 #define bar OPENSSL_GLOBAL_REF(bar)
2876 The #defines are very important, and therefore so is including the
2877 header file everywhere where the defined globals are used.
2879 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2880 of ASN.1 items, but that structure is a bit different.
2882 The largest change is in util/mkdef.pl which has been enhanced with
2883 better and easier to understand logic to choose which symbols should
2884 go into the Windows .def files as well as a number of fixes and code
2885 cleanup (among others, algorithm keywords are now sorted
2886 lexicographically to avoid constant rewrites).
2889 *) In BN_div() keep a copy of the sign of 'num' before writing the
2890 result to 'rm' because if rm==num the value will be overwritten
2891 and produce the wrong result if 'num' is negative: this caused
2892 problems with BN_mod() and BN_nnmod().
2895 *) Function OCSP_request_verify(). This checks the signature on an
2896 OCSP request and verifies the signer certificate. The signer
2897 certificate is just checked for a generic purpose and OCSP request
2901 *) Add OCSP_check_validity() function to check the validity of OCSP
2902 responses. OCSP responses are prepared in real time and may only
2903 be a few seconds old. Simply checking that the current time lies
2904 between thisUpdate and nextUpdate max reject otherwise valid responses
2905 caused by either OCSP responder or client clock inaccuracy. Instead
2906 we allow thisUpdate and nextUpdate to fall within a certain period of
2907 the current time. The age of the response can also optionally be
2908 checked. Two new options -validity_period and -status_age added to
2912 *) If signature or public key algorithm is unrecognized print out its
2913 OID rather that just UNKNOWN.
2916 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2917 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2918 ID to be generated from the issuer certificate alone which can then be
2919 passed to OCSP_id_issuer_cmp().
2922 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2923 ASN1 modules to export functions returning ASN1_ITEM pointers
2924 instead of the ASN1_ITEM structures themselves. This adds several
2925 new macros which allow the underlying ASN1 function/structure to
2926 be accessed transparently. As a result code should not use ASN1_ITEM
2927 references directly (such as &X509_it) but instead use the relevant
2928 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2929 use of the new ASN1 code on platforms where exporting structures
2930 is problematical (for example in shared libraries) but exporting
2931 functions returning pointers to structures is not.
2934 *) Add support for overriding the generation of SSL/TLS session IDs.
2935 These callbacks can be registered either in an SSL_CTX or per SSL.
2936 The purpose of this is to allow applications to control, if they wish,
2937 the arbitrary values chosen for use as session IDs, particularly as it
2938 can be useful for session caching in multiple-server environments. A
2939 command-line switch for testing this (and any client code that wishes
2940 to use such a feature) has been added to "s_server".
2941 [Geoff Thorpe, Lutz Jaenicke]
2943 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2944 of the form '#if defined(...) || defined(...) || ...' and
2945 '#if !defined(...) && !defined(...) && ...'. This also avoids
2946 the growing number of special cases it was previously handling.
2949 *) Make all configuration macros available for application by making
2950 sure they are available in opensslconf.h, by giving them names starting
2951 with "OPENSSL_" to avoid conflicts with other packages and by making
2952 sure e_os2.h will cover all platform-specific cases together with
2954 Additionally, it is now possible to define configuration/platform-
2955 specific names (called "system identities"). In the C code, these
2956 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2957 macro with the name beginning with "OPENSSL_SYS_", which is determined
2958 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2962 *) New option -set_serial to 'req' and 'x509' this allows the serial
2963 number to use to be specified on the command line. Previously self
2964 signed certificates were hard coded with serial number 0 and the
2965 CA options of 'x509' had to use a serial number in a file which was
2969 *) New options to 'ca' utility to support V2 CRL entry extensions.
2970 Currently CRL reason, invalidity date and hold instruction are
2971 supported. Add new CRL extensions to V3 code and some new objects.
2974 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2975 disable standard block padding (aka PKCS#5 padding) in the EVP
2976 API, which was previously mandatory. This means that the data is
2977 not padded in any way and so the total length much be a multiple
2978 of the block size, otherwise an error occurs.
2981 *) Initial (incomplete) OCSP SSL support.
2984 *) New function OCSP_parse_url(). This splits up a URL into its host,
2985 port and path components: primarily to parse OCSP URLs. New -url
2986 option to ocsp utility.
2989 *) New nonce behavior. The return value of OCSP_check_nonce() now
2990 reflects the various checks performed. Applications can decide
2991 whether to tolerate certain situations such as an absent nonce
2992 in a response when one was present in a request: the ocsp application
2993 just prints out a warning. New function OCSP_add1_basic_nonce()
2994 this is to allow responders to include a nonce in a response even if
2995 the request is nonce-less.
2998 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2999 skipped when using openssl x509 multiple times on a single input file,
3000 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3003 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3004 set string type: to handle setting ASN1_TIME structures. Fix ca
3005 utility to correctly initialize revocation date of CRLs.
3008 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3009 the clients preferred ciphersuites and rather use its own preferences.
3010 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3011 Internet Explorer by ensuring unchanged hash method during stepup.
3012 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3015 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3016 to aes and add a new 'exist' option to print out symbols that don't
3020 *) Additional options to ocsp utility to allow flags to be set and
3021 additional certificates supplied.
3024 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3025 OCSP client a number of certificate to only verify the response
3029 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3030 handle the new API. Currently only ECB, CBC modes supported. Add new
3033 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3034 Encryption Standard (AES) Ciphersuites for Transport Layer
3035 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3036 not enabled by default and were not part of the "ALL" ciphersuite
3037 alias because they were not yet official; they could be
3038 explicitly requested by specifying the "AESdraft" ciphersuite
3039 group alias. In the final release of OpenSSL 0.9.7, the group
3040 alias is called "AES" and is part of "ALL".)
3041 [Ben Laurie, Steve Henson, Bodo Moeller]
3043 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3044 request to response.
3047 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3048 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3049 extract information from a certificate request. OCSP_response_create()
3050 creates a response and optionally adds a basic response structure.
3051 OCSP_basic_add1_status() adds a complete single response to a basic
3052 response and returns the OCSP_SINGLERESP structure just added (to allow
3053 extensions to be included for example). OCSP_basic_add1_cert() adds a
3054 certificate to a basic response and OCSP_basic_sign() signs a basic
3055 response with various flags. New helper functions ASN1_TIME_check()
3056 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3057 (converts ASN1_TIME to GeneralizedTime).
3060 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3061 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3062 structure from a certificate. X509_pubkey_digest() digests the public_key
3063 contents: this is used in various key identifiers.
3066 *) Make sk_sort() tolerate a NULL argument.
3067 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3069 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3070 passed by the function are trusted implicitly. If any of them signed the
3071 response then it is assumed to be valid and is not verified.
3074 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3075 to data. This was previously part of the PKCS7 ASN1 code. This
3076 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3077 [Steve Henson, reported by Kenneth R. Robinette
3078 <support@securenetterm.com>]
3080 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3081 routines: without these tracing memory leaks is very painful.
3082 Fix leaks in PKCS12 and PKCS7 routines.
3085 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3086 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3087 effectively meant GeneralizedTime would never be used. Now it
3088 is initialised to -1 but X509_time_adj() now has to check the value
3089 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3090 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3091 [Steve Henson, reported by Kenneth R. Robinette
3092 <support@securenetterm.com>]
3094 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3095 result in a zero length in the ASN1_INTEGER structure which was
3096 not consistent with the structure when d2i_ASN1_INTEGER() was used
3097 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3098 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3099 where it did not print out a minus for negative ASN1_INTEGER.
3102 *) Add summary printout to ocsp utility. The various functions which
3103 convert status values to strings have been renamed to:
3104 OCSP_response_status_str(), OCSP_cert_status_str() and
3105 OCSP_crl_reason_str() and are no longer static. New options
3106 to verify nonce values and to disable verification. OCSP response
3107 printout format cleaned up.
3110 *) Add additional OCSP certificate checks. These are those specified
3111 in RFC2560. This consists of two separate checks: the CA of the
3112 certificate being checked must either be the OCSP signer certificate
3113 or the issuer of the OCSP signer certificate. In the latter case the
3114 OCSP signer certificate must contain the OCSP signing extended key
3115 usage. This check is performed by attempting to match the OCSP
3116 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3117 in the OCSP_CERTID structures of the response.
3120 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3121 and related routines. This uses the standard OpenSSL certificate
3122 verify routines to perform initial checks (just CA validity) and
3123 to obtain the certificate chain. Then additional checks will be
3124 performed on the chain. Currently the root CA is checked to see
3125 if it is explicitly trusted for OCSP signing. This is used to set
3126 a root CA as a global signing root: that is any certificate that
3127 chains to that CA is an acceptable OCSP signing certificate.
3130 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3131 extensions from a separate configuration file.
3132 As when reading extensions from the main configuration file,
3133 the '-extensions ...' option may be used for specifying the
3135 [Massimiliano Pala <madwolf@comune.modena.it>]
3137 *) New OCSP utility. Allows OCSP requests to be generated or
3138 read. The request can be sent to a responder and the output
3139 parsed, outputed or printed in text form. Not complete yet:
3140 still needs to check the OCSP response validity.
3143 *) New subcommands for 'openssl ca':
3144 'openssl ca -status <serial>' prints the status of the cert with
3145 the given serial number (according to the index file).
3146 'openssl ca -updatedb' updates the expiry status of certificates
3148 [Massimiliano Pala <madwolf@comune.modena.it>]
3150 *) New '-newreq-nodes' command option to CA.pl. This is like
3151 '-newreq', but calls 'openssl req' with the '-nodes' option
3152 so that the resulting key is not encrypted.
3153 [Damien Miller <djm@mindrot.org>]
3155 *) New configuration for the GNU Hurd.
3156 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3158 *) Initial code to implement OCSP basic response verify. This
3159 is currently incomplete. Currently just finds the signer's
3160 certificate and verifies the signature on the response.
3163 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3164 value of OPENSSLDIR. This is available via the new '-d' option
3165 to 'openssl version', and is also included in 'openssl version -a'.
3168 *) Allowing defining memory allocation callbacks that will be given
3169 file name and line number information in additional arguments
3170 (a const char* and an int). The basic functionality remains, as
3171 well as the original possibility to just replace malloc(),
3172 realloc() and free() by functions that do not know about these
3173 additional arguments. To register and find out the current
3174 settings for extended allocation functions, the following
3175 functions are provided:
3177 CRYPTO_set_mem_ex_functions
3178 CRYPTO_set_locked_mem_ex_functions
3179 CRYPTO_get_mem_ex_functions
3180 CRYPTO_get_locked_mem_ex_functions
3182 These work the same way as CRYPTO_set_mem_functions and friends.
3183 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3184 extended allocation function is enabled.
3185 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3186 a conventional allocation function is enabled.
3187 [Richard Levitte, Bodo Moeller]
3189 *) Finish off removing the remaining LHASH function pointer casts.
3190 There should no longer be any prototype-casting required when using
3191 the LHASH abstraction, and any casts that remain are "bugs". See
3192 the callback types and macros at the head of lhash.h for details
3193 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3196 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3197 If /dev/[u]random devices are not available or do not return enough
3198 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3200 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3201 /etc/entropy will be queried once each in this sequence, quering stops
3202 when enough entropy was collected without querying more sockets.
3205 *) Change the Unix RAND_poll() variant to be able to poll several
3206 random devices, as specified by DEVRANDOM, until a sufficient amount
3207 of data has been collected. We spend at most 10 ms on each file
3208 (select timeout) and read in non-blocking mode. DEVRANDOM now
3209 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3210 (previously it was just the string "/dev/urandom"), so on typical
3211 platforms the 10 ms delay will never occur.
3212 Also separate out the Unix variant to its own file, rand_unix.c.
3213 For VMS, there's a currently-empty rand_vms.c.
3216 *) Move OCSP client related routines to ocsp_cl.c. These
3217 provide utility functions which an application needing
3218 to issue a request to an OCSP responder and analyse the
3219 response will typically need: as opposed to those which an
3220 OCSP responder itself would need which will be added later.
3222 OCSP_request_sign() signs an OCSP request with an API similar
3223 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3224 response. OCSP_response_get1_basic() extracts basic response
3225 from response. OCSP_resp_find_status(): finds and extracts status
3226 information from an OCSP_CERTID structure (which will be created
3227 when the request structure is built). These are built from lower
3228 level functions which work on OCSP_SINGLERESP structures but
3229 wont normally be used unless the application wishes to examine
3230 extensions in the OCSP response for example.
3232 Replace nonce routines with a pair of functions.
3233 OCSP_request_add1_nonce() adds a nonce value and optionally
3234 generates a random value. OCSP_check_nonce() checks the
3235 validity of the nonce in an OCSP response.
3238 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3239 This doesn't copy the supplied OCSP_CERTID and avoids the
3240 need to free up the newly created id. Change return type
3241 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3242 This can then be used to add extensions to the request.
3243 Deleted OCSP_request_new(), since most of its functionality
3244 is now in OCSP_REQUEST_new() (and the case insensitive name
3245 clash) apart from the ability to set the request name which
3246 will be added elsewhere.
3249 *) Update OCSP API. Remove obsolete extensions argument from
3250 various functions. Extensions are now handled using the new
3251 OCSP extension code. New simple OCSP HTTP function which
3252 can be used to send requests and parse the response.
3255 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3256 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3257 uses the special reorder version of SET OF to sort the attributes
3258 and reorder them to match the encoded order. This resolves a long
3259 standing problem: a verify on a PKCS7 structure just after signing
3260 it used to fail because the attribute order did not match the
3261 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3262 it uses the received order. This is necessary to tolerate some broken
3263 software that does not order SET OF. This is handled by encoding
3264 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3265 to produce the required SET OF.
3268 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3269 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3270 files to get correct declarations of the ASN.1 item variables.
3273 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3274 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3275 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3276 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3277 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3278 ASN1_ITEM and no wrapper functions.
3281 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3282 replace the old function pointer based I/O routines. Change most of
3283 the *_d2i_bio() and *_d2i_fp() functions to use these.
3286 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3287 lines, recognice more "algorithms" that can be deselected, and make
3288 it complain about algorithm deselection that isn't recognised.
3291 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3292 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3293 to use new functions. Add NO_ASN1_OLD which can be set to remove
3294 some old style ASN1 functions: this can be used to determine if old
3295 code will still work when these eventually go away.
3298 *) New extension functions for OCSP structures, these follow the
3299 same conventions as certificates and CRLs.
3302 *) New function X509V3_add1_i2d(). This automatically encodes and
3303 adds an extension. Its behaviour can be customised with various
3304 flags to append, replace or delete. Various wrappers added for
3305 certifcates and CRLs.
3308 *) Fix to avoid calling the underlying ASN1 print routine when
3309 an extension cannot be parsed. Correct a typo in the
3310 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3313 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3314 entries for variables.
3317 *) Add functionality to apps/openssl.c for detecting locking
3318 problems: As the program is single-threaded, all we have
3319 to do is register a locking callback using an array for
3320 storing which locks are currently held by the program.
3323 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3324 SSL_get_ex_data_X509_STORE_idx(), which is used in
3325 ssl_verify_cert_chain() and thus can be called at any time
3326 during TLS/SSL handshakes so that thread-safety is essential.
3327 Unfortunately, the ex_data design is not at all suited
3328 for multi-threaded use, so it probably should be abolished.
3331 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3332 [Broadcom, tweaked and integrated by Geoff Thorpe]
3334 *) Move common extension printing code to new function
3335 X509V3_print_extensions(). Reorganise OCSP print routines and
3336 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3339 *) New function X509_signature_print() to remove duplication in some
3343 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3344 set (this was treated exactly the same as SET OF previously). This
3345 is used to reorder the STACK representing the structure to match the
3346 encoding. This will be used to get round a problem where a PKCS7
3347 structure which was signed could not be verified because the STACK
3348 order did not reflect the encoded order.
3351 *) Reimplement the OCSP ASN1 module using the new code.
3354 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3355 for its ASN1 operations. The old style function pointers still exist
3356 for now but they will eventually go away.
3359 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3360 completely replaces the old ASN1 functionality with a table driven
3361 encoder and decoder which interprets an ASN1_ITEM structure describing
3362 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3363 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3364 has also been converted to the new form.
3367 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3368 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3369 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3370 for negative moduli.
3373 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3374 of not touching the result's sign bit.
3377 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3381 *) Changed the LHASH code to use prototypes for callbacks, and created
3382 macros to declare and implement thin (optionally static) functions
3383 that provide type-safety and avoid function pointer casting for the
3384 type-specific callbacks.
3387 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3389 [Veers Staats <staatsvr@asc.hpc.mil>,
3390 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3392 *) Reformat the FAQ so the different questions and answers can be divided
3393 in sections depending on the subject.
3396 *) Have the zlib compression code load ZLIB.DLL dynamically under
3400 *) New function BN_mod_sqrt for computing square roots modulo a prime
3401 (using the probabilistic Tonelli-Shanks algorithm unless
3402 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3403 be handled deterministically).
3404 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3406 *) Make BN_mod_inverse faster by explicitly handling small quotients
3407 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3408 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3411 *) New function BN_kronecker.
3414 *) Fix BN_gcd so that it works on negative inputs; the result is
3415 positive unless both parameters are zero.
3416 Previously something reasonably close to an infinite loop was
3417 possible because numbers could be growing instead of shrinking
3418 in the implementation of Euclid's algorithm.
3421 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3422 sign of the number in question.
3424 Fix BN_is_word(a,w) to work correctly for w == 0.
3426 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3427 because its test if the absolute value of 'a' equals 'w'.
3428 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3429 it exists mostly for use in the implementations of BN_is_zero(),
3430 BN_is_one(), and BN_is_word().
3433 *) New function BN_swap.
3436 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3437 the exponentiation functions are more likely to produce reasonable
3438 results on negative inputs.
3441 *) Change BN_mod_mul so that the result is always non-negative.
3442 Previously, it could be negative if one of the factors was negative;
3443 I don't think anyone really wanted that behaviour.
3446 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3447 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3448 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3449 and add new functions:
3458 BN_mod_lshift1_quick
3462 These functions always generate non-negative results.
3464 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3465 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3467 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3468 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3469 be reduced modulo m.
3470 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3473 The following entry accidentily appeared in the CHANGES file
3474 distributed with OpenSSL 0.9.7. The modifications described in
3475 it do *not* apply to OpenSSL 0.9.7.
3477 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3478 was actually never needed) and in BN_mul(). The removal in BN_mul()
3479 required a small change in bn_mul_part_recursive() and the addition
3480 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3481 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3482 bn_sub_words() and bn_add_words() except they take arrays with
3487 *) In 'openssl passwd', verify passwords read from the terminal
3488 unless the '-salt' option is used (which usually means that
3489 verification would just waste user's time since the resulting
3490 hash is going to be compared with some given password hash)
3491 or the new '-noverify' option is used.
3493 This is an incompatible change, but it does not affect
3494 non-interactive use of 'openssl passwd' (passwords on the command
3495 line, '-stdin' option, '-in ...' option) and thus should not
3499 *) Remove all references to RSAref, since there's no more need for it.
3502 *) Make DSO load along a path given through an environment variable
3503 (SHLIB_PATH) with shl_load().
3506 *) Constify the ENGINE code as a result of BIGNUM constification.
3507 Also constify the RSA code and most things related to it. In a
3508 few places, most notable in the depth of the ASN.1 code, ugly
3509 casts back to non-const were required (to be solved at a later
3513 *) Make it so the openssl application has all engines loaded by default.
3516 *) Constify the BIGNUM routines a little more.
3519 *) Add the following functions:
3521 ENGINE_load_cswift()
3523 ENGINE_load_atalla()
3525 ENGINE_load_builtin_engines()
3527 That way, an application can itself choose if external engines that
3528 are built-in in OpenSSL shall ever be used or not. The benefit is
3529 that applications won't have to be linked with libdl or other dso
3530 libraries unless it's really needed.
3532 Changed 'openssl engine' to load all engines on demand.
3533 Changed the engine header files to avoid the duplication of some
3534 declarations (they differed!).
3537 *) 'openssl engine' can now list capabilities.
3540 *) Better error reporting in 'openssl engine'.
3543 *) Never call load_dh_param(NULL) in s_server.
3546 *) Add engine application. It can currently list engines by name and
3547 identity, and test if they are actually available.
3550 *) Improve RPM specification file by forcing symbolic linking and making
3551 sure the installed documentation is also owned by root.root.
3552 [Damien Miller <djm@mindrot.org>]
3554 *) Give the OpenSSL applications more possibilities to make use of
3555 keys (public as well as private) handled by engines.
3558 *) Add OCSP code that comes from CertCo.
3561 *) Add VMS support for the Rijndael code.
3564 *) Added untested support for Nuron crypto accelerator.
3567 *) Add support for external cryptographic devices. This code was
3568 previously distributed separately as the "engine" branch.
3569 [Geoff Thorpe, Richard Levitte]
3571 *) Rework the filename-translation in the DSO code. It is now possible to
3572 have far greater control over how a "name" is turned into a filename
3573 depending on the operating environment and any oddities about the
3574 different shared library filenames on each system.
3577 *) Support threads on FreeBSD-elf in Configure.
3580 *) Fix for SHA1 assembly problem with MASM: it produces
3581 warnings about corrupt line number information when assembling
3582 with debugging information. This is caused by the overlapping
3584 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3587 NCONF_get_number() has no error checking at all. As a replacement,
3588 NCONF_get_number_e() is defined (_e for "error checking") and is
3589 promoted strongly. The old NCONF_get_number is kept around for
3590 binary backward compatibility.
3591 Make it possible for methods to load from something other than a BIO,
3592 by providing a function pointer that is given a name instead of a BIO.
3593 For example, this could be used to load configuration data from an
3597 *) Fix for non blocking accept BIOs. Added new I/O special reason
3598 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3599 with non blocking I/O was not possible because no retry code was
3600 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3604 *) Added the beginnings of Rijndael support.
3607 *) Fix for bug in DirectoryString mask setting. Add support for
3608 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3609 to allow certificate printing to more controllable, additional
3610 'certopt' option to 'x509' to allow new printing options to be
3614 *) Clean old EAY MD5 hack from e_os.h.
3617 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3619 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3620 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3621 [Joe Orton, Steve Henson]
3623 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3625 *) Fix additional bug revealed by the NISCC test suite:
3627 Stop bug triggering large recursion when presented with
3628 certain ASN.1 tags (CVE-2003-0851)
3631 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3633 *) Fix various bugs revealed by running the NISCC test suite:
3635 Stop out of bounds reads in the ASN1 code when presented with
3636 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3638 If verify callback ignores invalid public key errors don't try to check
3639 certificate signature with the NULL public key.
3643 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3644 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3648 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3649 extra data after the compression methods not only for TLS 1.0
3650 but also for SSL 3.0 (as required by the specification).
3651 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3653 *) Change X509_certificate_type() to mark the key as exported/exportable
3654 when it's 512 *bits* long, not 512 bytes.
3657 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3659 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3660 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3661 a protocol version number mismatch like a decryption error
3662 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3665 *) Turn on RSA blinding by default in the default implementation
3666 to avoid a timing attack. Applications that don't want it can call
3667 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3668 They would be ill-advised to do so in most cases.
3669 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3671 *) Change RSA blinding code so that it works when the PRNG is not
3672 seeded (in this case, the secret RSA exponent is abused as
3673 an unpredictable seed -- if it is not unpredictable, there
3674 is no point in blinding anyway). Make RSA blinding thread-safe
3675 by remembering the creator's thread ID in rsa->blinding and
3676 having all other threads use local one-time blinding factors
3677 (this requires more computation than sharing rsa->blinding, but
3678 avoids excessive locking; and if an RSA object is not shared
3679 between threads, blinding will still be very fast).
3682 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3684 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3685 via timing by performing a MAC computation even if incorrrect
3686 block cipher padding has been found. This is a countermeasure
3687 against active attacks where the attacker has to distinguish
3688 between bad padding and a MAC verification error. (CVE-2003-0078)
3690 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3691 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3692 Martin Vuagnoux (EPFL, Ilion)]
3694 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3696 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3697 memory from it's contents. This is done with a counter that will
3698 place alternating values in each byte. This can be used to solve
3699 two issues: 1) the removal of calls to memset() by highly optimizing
3700 compilers, and 2) cleansing with other values than 0, since those can
3701 be read through on certain media, for example a swap space on disk.
3704 *) Bugfix: client side session caching did not work with external caching,
3705 because the session->cipher setting was not restored when reloading
3706 from the external cache. This problem was masked, when
3707 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3708 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3711 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3712 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3713 [Zeev Lieber <zeev-l@yahoo.com>]
3715 *) Undo an undocumented change introduced in 0.9.6e which caused
3716 repeated calls to OpenSSL_add_all_ciphers() and
3717 OpenSSL_add_all_digests() to be ignored, even after calling
3721 *) Change the default configuration reader to deal with last line not
3722 being properly terminated.
3725 *) Change X509_NAME_cmp() so it applies the special rules on handling
3726 DN values that are of type PrintableString, as well as RDNs of type
3727 emailAddress where the value has the type ia5String.
3728 [stefank@valicert.com via Richard Levitte]
3730 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3731 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3732 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3733 the bitwise-OR of the two for use by the majority of applications
3734 wanting this behaviour, and update the docs. The documented
3735 behaviour and actual behaviour were inconsistent and had been
3736 changing anyway, so this is more a bug-fix than a behavioural
3738 [Geoff Thorpe, diagnosed by Nadav Har'El]
3740 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3741 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3744 *) Fix initialization code race conditions in
3745 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3746 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3747 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3748 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3749 ssl2_get_cipher_by_char(),
3750 ssl3_get_cipher_by_char().
3751 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3753 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3754 the cached sessions are flushed, as the remove_cb() might use ex_data
3755 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3756 (see [openssl.org #212]).
3757 [Geoff Thorpe, Lutz Jaenicke]
3759 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3760 length, instead of the encoding length to d2i_ASN1_OBJECT.
3763 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3765 *) [In 0.9.6g-engine release:]
3766 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3767 [Lynn Gazis <lgazis@rainbow.com>]
3769 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3771 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3772 and get fix the header length calculation.
3773 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3774 Alon Kantor <alonk@checkpoint.com> (and others),
3777 *) Use proper error handling instead of 'assertions' in buffer
3778 overflow checks added in 0.9.6e. This prevents DoS (the
3779 assertions could call abort()).
3780 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3782 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3784 *) Add various sanity checks to asn1_get_length() to reject
3785 the ASN1 length bytes if they exceed sizeof(long), will appear
3786 negative or the content length exceeds the length of the
3788 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3790 *) Fix cipher selection routines: ciphers without encryption had no flags
3791 for the cipher strength set and where therefore not handled correctly
3792 by the selection routines (PR #130).
3795 *) Fix EVP_dsa_sha macro.
3799 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3800 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3801 that was added in OpenSSL 0.9.6d.
3803 As the countermeasure turned out to be incompatible with some
3804 broken SSL implementations, the new option is part of SSL_OP_ALL.
3805 SSL_OP_ALL is usually employed when compatibility with weird SSL
3806 implementations is desired (e.g. '-bugs' option to 's_client' and
3807 's_server'), so the new option is automatically set in many
3811 *) Changes in security patch:
3813 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3814 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3815 Air Force Materiel Command, USAF, under agreement number
3818 *) Add various sanity checks to asn1_get_length() to reject
3819 the ASN1 length bytes if they exceed sizeof(long), will appear
3820 negative or the content length exceeds the length of the
3821 supplied buffer. (CVE-2002-0659)
3822 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3824 *) Assertions for various potential buffer overflows, not known to
3826 [Ben Laurie (CHATS)]
3828 *) Various temporary buffers to hold ASCII versions of integers were
3829 too small for 64 bit platforms. (CVE-2002-0655)
3830 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3832 *) Remote buffer overflow in SSL3 protocol - an attacker could
3833 supply an oversized session ID to a client. (CVE-2002-0656)
3834 [Ben Laurie (CHATS)]
3836 *) Remote buffer overflow in SSL2 protocol - an attacker could
3837 supply an oversized client master key. (CVE-2002-0656)
3838 [Ben Laurie (CHATS)]
3840 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3842 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3843 encoded as NULL) with id-dsa-with-sha1.
3844 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3846 *) Check various X509_...() return values in apps/req.c.
3847 [Nils Larsch <nla@trustcenter.de>]
3849 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3850 an end-of-file condition would erronously be flagged, when the CRLF
3851 was just at the end of a processed block. The bug was discovered when
3852 processing data through a buffering memory BIO handing the data to a
3853 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3854 <ptsekov@syntrex.com> and Nedelcho Stanev.
3857 *) Implement a countermeasure against a vulnerability recently found
3858 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3859 before application data chunks to avoid the use of known IVs
3860 with data potentially chosen by the attacker.
3863 *) Fix length checks in ssl3_get_client_hello().
3866 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3867 to prevent ssl3_read_internal() from incorrectly assuming that
3868 ssl3_read_bytes() found application data while handshake
3869 processing was enabled when in fact s->s3->in_read_app_data was
3870 merely automatically cleared during the initial handshake.
3871 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3873 *) Fix object definitions for Private and Enterprise: they were not
3874 recognized in their shortname (=lowercase) representation. Extend
3875 obj_dat.pl to issue an error when using undefined keywords instead
3876 of silently ignoring the problem (Svenning Sorensen
3877 <sss@sss.dnsalias.net>).
3880 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3881 generators, i.e. generators other than 2 and 5. (Previously, the
3882 code did not properly initialise the 'add' and 'rem' values to
3883 BN_generate_prime().)
3885 In the new general case, we do not insist that 'generator' is
3886 actually a primitive root: This requirement is rather pointless;
3887 a generator of the order-q subgroup is just as good, if not
3891 *) Map new X509 verification errors to alerts. Discovered and submitted by
3892 Tom Wu <tom@arcot.com>.
3895 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3896 returning non-zero before the data has been completely received
3897 when using non-blocking I/O.
3898 [Bodo Moeller; problem pointed out by John Hughes]
3900 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3901 [Ben Laurie, Lutz Jaenicke]
3903 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3904 Yoram Zahavi <YoramZ@gilian.com>).
3907 *) Add information about CygWin 1.3 and on, and preserve proper
3908 configuration for the versions before that.
3909 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3911 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3912 check whether we deal with a copy of a session and do not delete from
3913 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3914 <izhar@checkpoint.com>.
3917 *) Do not store session data into the internal session cache, if it
3918 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3919 flag is set). Proposed by Aslam <aslam@funk.com>.
3922 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3926 *) [In 0.9.6d-engine release:]
3927 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3928 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3930 *) Add the configuration target linux-s390x.
3931 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3933 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3934 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3935 variable as an indication that a ClientHello message has been
3936 received. As the flag value will be lost between multiple
3937 invocations of ssl3_accept when using non-blocking I/O, the
3938 function may not be aware that a handshake has actually taken
3939 place, thus preventing a new session from being added to the
3942 To avoid this problem, we now set s->new_session to 2 instead of
3943 using a local variable.
3944 [Lutz Jaenicke, Bodo Moeller]
3946 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3947 if the SSL_R_LENGTH_MISMATCH error is detected.
3948 [Geoff Thorpe, Bodo Moeller]
3950 *) New 'shared_ldflag' column in Configure platform table.
3953 *) Fix EVP_CIPHER_mode macro.
3954 ["Dan S. Camper" <dan@bti.net>]
3956 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3957 type, we must throw them away by setting rr->length to 0.
3958 [D P Chang <dpc@qualys.com>]
3960 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3962 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3963 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3964 worked incorrectly for those cases where range = 10..._2 and
3965 3*range is two bits longer than range.)
3968 *) Only add signing time to PKCS7 structures if it is not already
3972 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3973 OBJ_ld_ce should be OBJ_id_ce.
3974 Also some ip-pda OIDs in crypto/objects/objects.txt were
3975 incorrect (cf. RFC 3039).
3976 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3978 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3979 returns early because it has nothing to do.
3980 [Andy Schneider <andy.schneider@bjss.co.uk>]
3982 *) [In 0.9.6c-engine release:]
3983 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3984 [Andy Schneider <andy.schneider@bjss.co.uk>]
3986 *) [In 0.9.6c-engine release:]
3987 Add support for Cryptographic Appliance's keyserver technology.
3988 (Use engine 'keyclient')
3989 [Cryptographic Appliances and Geoff Thorpe]
3991 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3992 is called via tools/c89.sh because arguments have to be
3993 rearranged (all '-L' options must appear before the first object
3995 [Richard Shapiro <rshapiro@abinitio.com>]
3997 *) [In 0.9.6c-engine release:]
3998 Add support for Broadcom crypto accelerator cards, backported
4000 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4002 *) [In 0.9.6c-engine release:]
4003 Add support for SureWare crypto accelerator cards from
4004 Baltimore Technologies. (Use engine 'sureware')
4005 [Baltimore Technologies and Mark Cox]
4007 *) [In 0.9.6c-engine release:]
4008 Add support for crypto accelerator cards from Accelerated
4009 Encryption Processing, www.aep.ie. (Use engine 'aep')
4010 [AEP Inc. and Mark Cox]
4012 *) Add a configuration entry for gcc on UnixWare.
4013 [Gary Benson <gbenson@redhat.com>]
4015 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4016 messages are stored in a single piece (fixed-length part and
4017 variable-length part combined) and fix various bugs found on the way.
4020 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4021 instead. BIO_gethostbyname() does not know what timeouts are
4022 appropriate, so entries would stay in cache even when they have
4024 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4026 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4027 faced with a pathologically small ClientHello fragment that does
4028 not contain client_version: Instead of aborting with an error,
4029 simply choose the highest available protocol version (i.e.,
4030 TLS 1.0 unless it is disabled). In practice, ClientHello
4031 messages are never sent like this, but this change gives us
4032 strictly correct behaviour at least for TLS.
4035 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4036 never resets s->method to s->ctx->method when called from within
4037 one of the SSL handshake functions.
4038 [Bodo Moeller; problem pointed out by Niko Baric]
4040 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4041 (sent using the client's version number) if client_version is
4042 smaller than the protocol version in use. Also change
4043 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4044 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4045 the client will at least see that alert.
4048 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4052 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4053 client receives HelloRequest while in a handshake.
4054 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4056 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4057 should end in 'break', not 'goto end' which circuments various
4058 cleanups done in state SSL_ST_OK. But session related stuff
4059 must be disabled for SSL_ST_OK in the case that we just sent a
4062 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4063 before just sending a HelloRequest.
4064 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4066 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4067 reveal whether illegal block cipher padding was found or a MAC
4068 verification error occured. (Neither SSLerr() codes nor alerts
4069 are directly visible to potential attackers, but the information
4070 may leak via logfiles.)
4072 Similar changes are not required for the SSL 2.0 implementation
4073 because the number of padding bytes is sent in clear for SSL 2.0,
4074 and the extra bytes are just ignored. However ssl/s2_pkt.c
4075 failed to verify that the purported number of padding bytes is in
4079 *) Add OpenUNIX-8 support including shared libraries
4080 (Boyd Lynn Gerber <gerberb@zenez.com>).
4083 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4084 'wristwatch attack' using huge encoding parameters (cf.
4085 James H. Manger's CRYPTO 2001 paper). Note that the
4086 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4087 encoding parameters and hence was not vulnerable.
4090 *) BN_sqr() bug fix.
4091 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4093 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4094 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4095 followed by modular reduction.
4096 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4098 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4099 equivalent based on BN_pseudo_rand() instead of BN_rand().
4102 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4103 This function was broken, as the check for a new client hello message
4104 to handle SGC did not allow these large messages.
4105 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4108 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4111 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4112 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4115 *) Rework the configuration and shared library support for Tru64 Unix.
4116 The configuration part makes use of modern compiler features and
4117 still retains old compiler behavior for those that run older versions
4118 of the OS. The shared library support part includes a variant that
4119 uses the RPATH feature, and is available through the special
4120 configuration target "alpha-cc-rpath", which will never be selected
4122 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4124 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4125 with the same message size as in ssl3_get_certificate_request().
4126 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4127 messages might inadvertently be reject as too long.
4128 [Petr Lampa <lampa@fee.vutbr.cz>]
4130 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4133 *) Modified SSL library such that the verify_callback that has been set
4134 specificly for an SSL object with SSL_set_verify() is actually being
4135 used. Before the change, a verify_callback set with this function was
4136 ignored and the verify_callback() set in the SSL_CTX at the time of
4137 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4138 to allow the necessary settings.
4141 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4142 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4143 done automatically (in contradiction to the requirements of the C
4144 standard). This made problems when used from OpenSSH.
4147 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4148 dh->length and always used
4150 BN_rand_range(priv_key, dh->p).
4152 BN_rand_range() is not necessary for Diffie-Hellman, and this
4153 specific range makes Diffie-Hellman unnecessarily inefficient if
4154 dh->length (recommended exponent length) is much smaller than the
4155 length of dh->p. We could use BN_rand_range() if the order of
4156 the subgroup was stored in the DH structure, but we only have
4161 BN_rand(priv_key, l, ...)
4163 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4169 RSA_eay_public_encrypt
4170 RSA_eay_private_decrypt
4171 RSA_eay_private_encrypt (signing)
4172 RSA_eay_public_decrypt (signature verification)
4174 (default implementations for RSA_public_encrypt,
4175 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4176 always reject numbers >= n.
4179 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4180 to synchronize access to 'locking_thread'. This is necessary on
4181 systems where access to 'locking_thread' (an 'unsigned long'
4182 variable) is not atomic.
4185 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4186 *before* setting the 'crypto_lock_rand' flag. The previous code had
4187 a race condition if 0 is a valid thread ID.
4188 [Travis Vitek <vitek@roguewave.com>]
4190 *) Add support for shared libraries under Irix.
4191 [Albert Chin-A-Young <china@thewrittenword.com>]
4193 *) Add configuration option to build on Linux on both big-endian and
4195 [Ralf Baechle <ralf@uni-koblenz.de>]
4197 *) Add the possibility to create shared libraries on HP-UX.
4200 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4202 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4203 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4204 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4205 PRNG state recovery was possible based on the output of
4206 one PRNG request appropriately sized to gain knowledge on
4207 'md' followed by enough consecutive 1-byte PRNG requests
4208 to traverse all of 'state'.
4210 1. When updating 'md_local' (the current thread's copy of 'md')
4211 during PRNG output generation, hash all of the previous
4212 'md_local' value, not just the half used for PRNG output.
4214 2. Make the number of bytes from 'state' included into the hash
4215 independent from the number of PRNG bytes requested.
4217 The first measure alone would be sufficient to avoid
4218 Markku-Juhani's attack. (Actually it had never occurred
4219 to me that the half of 'md_local' used for chaining was the
4220 half from which PRNG output bytes were taken -- I had always
4221 assumed that the secret half would be used.) The second
4222 measure makes sure that additional data from 'state' is never
4223 mixed into 'md_local' in small portions; this heuristically
4224 further strengthens the PRNG.
4227 *) Fix crypto/bn/asm/mips3.s.
4230 *) When only the key is given to "enc", the IV is undefined. Print out
4231 an error message in this case.
4234 *) Handle special case when X509_NAME is empty in X509 printing routines.
4237 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4238 positive and less than q.
4241 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4242 used: it isn't thread safe and the add_lock_callback should handle
4244 [Paul Rose <Paul.Rose@bridge.com>]
4246 *) Verify that incoming data obeys the block size in
4247 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4251 [Ulf Möller, Bodo Möller]
4253 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4254 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4255 when fixing the server behaviour for backwards-compatible 'client
4256 hello' messages. (Note that the attack is impractical against
4257 SSL 3.0 and TLS 1.0 anyway because length and version checking
4258 means that the probability of guessing a valid ciphertext is
4259 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4262 Before 0.9.5, the countermeasure (hide the error by generating a
4263 random 'decryption result') did not work properly because
4264 ERR_clear_error() was missing, meaning that SSL_get_error() would
4265 detect the supposedly ignored error.
4267 Both problems are now fixed.
4270 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4271 (previously it was 1024).
4274 *) Fix for compatibility mode trust settings: ignore trust settings
4275 unless some valid trust or reject settings are present.
4278 *) Fix for blowfish EVP: its a variable length cipher.
4281 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4282 parameters in DSA public key structures and return an error in the
4283 DSA routines if parameters are absent.
4286 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4287 in the current directory if neither $RANDFILE nor $HOME was set.
4288 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4289 caused some confusion to Windows users who haven't defined $HOME.
4290 Thus RAND_file_name() is changed again: e_os.h can define a
4291 DEFAULT_HOME, which will be used if $HOME is not set.
4292 For Windows, we use "C:"; on other platforms, we still require
4293 environment variables.
4295 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4296 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4297 having multiple threads call RAND_poll() concurrently.
4300 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4301 combination of a flag and a thread ID variable.
4302 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4303 flag), *other* threads can enter ssleay_add_bytes without obeying
4304 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4305 that they do not hold after the first thread unsets add_do_not_lock).
4308 *) Change bctest again: '-x' expressions are not available in all
4312 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4314 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4315 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4317 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4318 the default extension for executables, if any. Also, make the perl
4319 scripts that use symlink() to test if it really exists and use "cp"
4320 if it doesn't. All this made OpenSSL compilable and installable in
4324 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4325 If SEQUENCE is length is indefinite just set c->slen to the total
4326 amount of data available.
4327 [Steve Henson, reported by shige@FreeBSD.org]
4328 [This change does not apply to 0.9.7.]
4330 *) Change bctest to avoid here-documents inside command substitution
4331 (workaround for FreeBSD /bin/sh bug).
4332 For compatibility with Ultrix, avoid shell functions (introduced
4333 in the bctest version that searches along $PATH).
4336 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4337 with des_encrypt() defined on some operating systems, like Solaris
4341 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4342 On the Importance of Eliminating Errors in Cryptographic
4343 Computations, J. Cryptology 14 (2001) 2, 101-119,
4344 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4347 *) MIPS assembler BIGNUM division bug fix.
4350 *) Disabled incorrect Alpha assembler code.
4353 *) Fix PKCS#7 decode routines so they correctly update the length
4354 after reading an EOC for the EXPLICIT tag.
4356 [This change does not apply to 0.9.7.]
4358 *) Fix bug in PKCS#12 key generation routines. This was triggered
4359 if a 3DES key was generated with a 0 initial byte. Include
4360 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4361 (but broken) behaviour.
4364 *) Enhance bctest to search for a working bc along $PATH and print
4366 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4368 *) Fix memory leaks in err.c: free err_data string if necessary;
4369 don't write to the wrong index in ERR_set_error_data.
4372 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4376 *) Replace rdtsc with _emit statements for VC++ version 5.
4377 [Jeremy Cooper <jeremy@baymoo.org>]
4379 *) Make it possible to reuse SSLv2 sessions.
4382 *) In copy_email() check for >= 0 as a return value for
4383 X509_NAME_get_index_by_NID() since 0 is a valid index.
4384 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4386 *) Avoid coredump with unsupported or invalid public keys by checking if
4387 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4388 PKCS7_verify() fails with non detached data.
4391 *) Don't use getenv in library functions when run as setuid/setgid.
4392 New function OPENSSL_issetugid().
4395 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4396 due to incorrect handling of multi-threading:
4398 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4400 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4402 3. Count how many times MemCheck_off() has been called so that
4403 nested use can be treated correctly. This also avoids
4404 inband-signalling in the previous code (which relied on the
4405 assumption that thread ID 0 is impossible).
4408 *) Add "-rand" option also to s_client and s_server.
4411 *) Fix CPU detection on Irix 6.x.
4412 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4413 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4415 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4418 [This change does not apply to 0.9.7.]
4420 *) Use the cached encoding of an X509_NAME structure rather than
4421 copying it. This is apparently the reason for the libsafe "errors"
4422 but the code is actually correct.
4425 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4426 Bleichenbacher's DSA attack.
4427 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4428 to be set and top=0 forces the highest bit to be set; top=-1 is new
4429 and leaves the highest bit random.
4430 [Ulf Moeller, Bodo Moeller]
4432 *) In the NCONF_...-based implementations for CONF_... queries
4433 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4434 a temporary CONF structure with the data component set to NULL
4435 (which gives segmentation faults in lh_retrieve).
4436 Instead, use NULL for the CONF pointer in CONF_get_string and
4437 CONF_get_number (which may use environment variables) and directly
4438 return NULL from CONF_get_section.
4441 *) Fix potential buffer overrun for EBCDIC.
4444 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4445 keyUsage if basicConstraints absent for a CA.
4448 *) Make SMIME_write_PKCS7() write mail header values with a format that
4449 is more generally accepted (no spaces before the semicolon), since
4450 some programs can't parse those values properly otherwise. Also make
4451 sure BIO's that break lines after each write do not create invalid
4455 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4456 macros previously used would not encode an empty SEQUENCE OF
4457 and break the signature.
4459 [This change does not apply to 0.9.7.]
4461 *) Zero the premaster secret after deriving the master secret in
4465 *) Add some EVP_add_digest_alias registrations (as found in
4466 OpenSSL_add_all_digests()) to SSL_library_init()
4467 aka OpenSSL_add_ssl_algorithms(). This provides improved
4468 compatibility with peers using X.509 certificates
4469 with unconventional AlgorithmIdentifier OIDs.
4472 *) Fix for Irix with NO_ASM.
4473 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4475 *) ./config script fixes.
4476 [Ulf Moeller, Richard Levitte]
4478 *) Fix 'openssl passwd -1'.
4481 *) Change PKCS12_key_gen_asc() so it can cope with non null
4482 terminated strings whose length is passed in the passlen
4483 parameter, for example from PEM callbacks. This was done
4484 by adding an extra length parameter to asc2uni().
4485 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4487 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4488 call failed, free the DSA structure.
4491 *) Fix to uni2asc() to cope with zero length Unicode strings.
4492 These are present in some PKCS#12 files.
4495 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4496 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4497 when writing a 32767 byte record.
4498 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4500 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4501 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4503 (RSA objects have a reference count access to which is protected
4504 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4505 so they are meant to be shared between threads.)
4506 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4507 "Reddie, Steven" <Steven.Reddie@ca.com>]
4509 *) Fix a deadlock in CRYPTO_mem_leaks().
4512 *) Use better test patterns in bntest.
4515 *) rand_win.c fix for Borland C.
4518 *) BN_rshift bugfix for n == 0.
4521 *) Add a 'bctest' script that checks for some known 'bc' bugs
4522 so that 'make test' does not abort just because 'bc' is broken.
4525 *) Store verify_result within SSL_SESSION also for client side to
4526 avoid potential security hole. (Re-used sessions on the client side
4527 always resulted in verify_result==X509_V_OK, not using the original
4528 result of the server certificate verification.)
4531 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4532 SSL3_RT_APPLICATION_DATA, return 0.
4533 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4537 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4538 releases, have been re-implemented by renaming the previous
4539 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4540 and ssl3_read_internal, respectively, and adding 'peek' parameters
4541 to them. The new ssl[23]_{read,peek} functions are calls to
4542 ssl[23]_read_internal with the 'peek' flag set appropriately.
4543 A 'peek' parameter has also been added to ssl3_read_bytes, which
4544 does the actual work for ssl3_read_internal.
4547 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4548 the method-specific "init()" handler. Also clean up ex_data after
4549 calling the method-specific "finish()" handler. Previously, this was
4550 happening the other way round.
4553 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4554 The previous value, 12, was not always sufficient for BN_mod_exp().
4557 *) Make sure that shared libraries get the internal name engine with
4558 the full version number and not just 0. This should mark the
4559 shared libraries as not backward compatible. Of course, this should
4560 be changed again when we can guarantee backward binary compatibility.
4563 *) Fix typo in get_cert_by_subject() in by_dir.c
4564 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4566 *) Rework the system to generate shared libraries:
4568 - Make note of the expected extension for the shared libraries and
4569 if there is a need for symbolic links from for example libcrypto.so.0
4570 to libcrypto.so.0.9.7. There is extended info in Configure for
4573 - Make as few rebuilds of the shared libraries as possible.
4575 - Still avoid linking the OpenSSL programs with the shared libraries.
4577 - When installing, install the shared libraries separately from the
4581 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4583 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4584 and not in SSL_clear because the latter is also used by the
4585 accept/connect functions; previously, the settings made by
4586 SSL_set_read_ahead would be lost during the handshake.
4587 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4589 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4590 Previously, it would create entries for disableed algorithms no
4594 *) Added several new manual pages for SSL_* function.
4597 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4599 *) In ssl23_get_client_hello, generate an error message when faced
4600 with an initial SSL 3.0/TLS record that is too small to contain the
4601 first two bytes of the ClientHello message, i.e. client_version.
4602 (Note that this is a pathologic case that probably has never happened
4603 in real life.) The previous approach was to use the version number
4604 from the record header as a substitute; but our protocol choice
4605 should not depend on that one because it is not authenticated
4606 by the Finished messages.
4609 *) More robust randomness gathering functions for Windows.
4610 [Jeffrey Altman <jaltman@columbia.edu>]
4612 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4613 not set then we don't setup the error code for issuer check errors
4614 to avoid possibly overwriting other errors which the callback does
4615 handle. If an application does set the flag then we assume it knows
4616 what it is doing and can handle the new informational codes
4620 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4621 a general "ANY" type, as such it should be able to decode anything
4622 including tagged types. However it didn't check the class so it would
4623 wrongly interpret tagged types in the same way as their universal
4624 counterpart and unknown types were just rejected. Changed so that the
4625 tagged and unknown types are handled in the same way as a SEQUENCE:
4626 that is the encoding is stored intact. There is also a new type
4627 "V_ASN1_OTHER" which is used when the class is not universal, in this
4628 case we have no idea what the actual type is so we just lump them all
4632 *) On VMS, stdout may very well lead to a file that is written to
4633 in a record-oriented fashion. That means that every write() will
4634 write a separate record, which will be read separately by the
4635 programs trying to read from it. This can be very confusing.
4637 The solution is to put a BIO filter in the way that will buffer
4638 text until a linefeed is reached, and then write everything a
4639 line at a time, so every record written will be an actual line,
4640 not chunks of lines and not (usually doesn't happen, but I've
4641 seen it once) several lines in one record. BIO_f_linebuffer() is
4644 Currently, it's a VMS-only method, because that's where it has
4645 been tested well enough.
4648 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4649 it can return incorrect results.
4650 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4651 but it was in 0.9.6-beta[12].)
4654 *) Disable the check for content being present when verifying detached
4655 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4656 include zero length content when signing messages.
4659 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4660 BIO_ctrl (for BIO pairs).
4663 *) Add DSO method for VMS.
4666 *) Bug fix: Montgomery multiplication could produce results with the
4670 *) Add RPM specification openssl.spec and modify it to build three
4671 packages. The default package contains applications, application
4672 documentation and run-time libraries. The devel package contains
4673 include files, static libraries and function documentation. The
4674 doc package contains the contents of the doc directory. The original
4675 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4678 *) Add a large number of documentation files for many SSL routines.
4679 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4681 *) Add a configuration entry for Sony News 4.
4682 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4684 *) Don't set the two most significant bits to one when generating a
4685 random number < q in the DSA library.
4688 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4689 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4690 the underlying transport is blocking) if a handshake took place.
4691 (The default behaviour is needed by applications such as s_client
4692 and s_server that use select() to determine when to use SSL_read;
4693 but for applications that know in advance when to expect data, it
4694 just makes things more complicated.)
4697 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4701 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4702 work better on such systems.
4703 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4705 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4706 Update PKCS12_parse() so it copies the friendlyName and the
4707 keyid to the certificates aux info.
4710 *) Fix bug in PKCS7_verify() which caused an infinite loop
4711 if there was more than one signature.
4712 [Sven Uszpelkat <su@celocom.de>]
4714 *) Major change in util/mkdef.pl to include extra information
4715 about each symbol, as well as presentig variables as well
4716 as functions. This change means that there's n more need
4717 to rebuild the .num files when some algorithms are excluded.
4720 *) Allow the verify time to be set by an application,
4721 rather than always using the current time.
4724 *) Phase 2 verify code reorganisation. The certificate
4725 verify code now looks up an issuer certificate by a
4726 number of criteria: subject name, authority key id
4727 and key usage. It also verifies self signed certificates
4728 by the same criteria. The main comparison function is
4729 X509_check_issued() which performs these checks.
4731 Lot of changes were necessary in order to support this
4732 without completely rewriting the lookup code.
4734 Authority and subject key identifier are now cached.
4736 The LHASH 'certs' is X509_STORE has now been replaced
4737 by a STACK_OF(X509_OBJECT). This is mainly because an
4738 LHASH can't store or retrieve multiple objects with
4739 the same hash value.
4741 As a result various functions (which were all internal
4742 use only) have changed to handle the new X509_STORE
4743 structure. This will break anything that messed round
4744 with X509_STORE internally.
4746 The functions X509_STORE_add_cert() now checks for an
4747 exact match, rather than just subject name.
4749 The X509_STORE API doesn't directly support the retrieval
4750 of multiple certificates matching a given criteria, however
4751 this can be worked round by performing a lookup first
4752 (which will fill the cache with candidate certificates)
4753 and then examining the cache for matches. This is probably
4754 the best we can do without throwing out X509_LOOKUP
4755 entirely (maybe later...).
4757 The X509_VERIFY_CTX structure has been enhanced considerably.
4759 All certificate lookup operations now go via a get_issuer()
4760 callback. Although this currently uses an X509_STORE it
4761 can be replaced by custom lookups. This is a simple way
4762 to bypass the X509_STORE hackery necessary to make this
4763 work and makes it possible to use more efficient techniques
4764 in future. A very simple version which uses a simple
4765 STACK for its trusted certificate store is also provided
4766 using X509_STORE_CTX_trusted_stack().
4768 The verify_cb() and verify() callbacks now have equivalents
4769 in the X509_STORE_CTX structure.
4771 X509_STORE_CTX also has a 'flags' field which can be used
4772 to customise the verify behaviour.
4775 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4776 excludes S/MIME capabilities.
4779 *) When a certificate request is read in keep a copy of the
4780 original encoding of the signed data and use it when outputing
4781 again. Signatures then use the original encoding rather than
4782 a decoded, encoded version which may cause problems if the
4783 request is improperly encoded.
4786 *) For consistency with other BIO_puts implementations, call
4787 buffer_write(b, ...) directly in buffer_puts instead of calling
4790 In BIO_puts, increment b->num_write as in BIO_write.
4791 [Peter.Sylvester@EdelWeb.fr]
4793 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4794 BN_zero, we may not return a BIGNUM with an array consisting of
4798 *) Avoid calling abort() from within the library when problems are
4799 detected, except if preprocessor symbols have been defined
4800 (such as REF_CHECK, BN_DEBUG etc.).
4803 *) New openssl application 'rsautl'. This utility can be
4804 used for low level RSA operations. DER public key
4805 BIO/fp routines also added.
4808 *) New Configure entry and patches for compiling on QNX 4.
4809 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4811 *) A demo state-machine implementation was sponsored by
4812 Nuron (http://www.nuron.com/) and is now available in
4813 demos/state_machine.
4816 *) New options added to the 'dgst' utility for signature
4817 generation and verification.
4820 *) Unrecognized PKCS#7 content types are now handled via a
4821 catch all ASN1_TYPE structure. This allows unsupported
4822 types to be stored as a "blob" and an application can
4823 encode and decode it manually.
4826 *) Fix various signed/unsigned issues to make a_strex.c
4828 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4830 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4831 length if passed a buffer. ASN1_INTEGER_to_BN failed
4832 if passed a NULL BN and its argument was negative.
4833 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4835 *) Modification to PKCS#7 encoding routines to output definite
4836 length encoding. Since currently the whole structures are in
4837 memory there's not real point in using indefinite length
4838 constructed encoding. However if OpenSSL is compiled with
4839 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4842 *) Added BIO_vprintf() and BIO_vsnprintf().
4845 *) Added more prefixes to parse for in the the strings written
4846 through a logging bio, to cover all the levels that are available
4847 through syslog. The prefixes are now:
4849 PANIC, EMERG, EMR => LOG_EMERG
4850 ALERT, ALR => LOG_ALERT
4851 CRIT, CRI => LOG_CRIT
4852 ERROR, ERR => LOG_ERR
4853 WARNING, WARN, WAR => LOG_WARNING
4854 NOTICE, NOTE, NOT => LOG_NOTICE
4855 INFO, INF => LOG_INFO
4856 DEBUG, DBG => LOG_DEBUG
4858 and as before, if none of those prefixes are present at the
4859 beginning of the string, LOG_ERR is chosen.
4861 On Win32, the LOG_* levels are mapped according to this:
4863 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4864 LOG_WARNING => EVENTLOG_WARNING_TYPE
4865 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4869 *) Made it possible to reconfigure with just the configuration
4870 argument "reconf" or "reconfigure". The command line arguments
4871 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4872 and are retrieved from there when reconfiguring.
4876 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4878 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4881 *) The obj_dat.pl script was messing up the sorting of object
4882 names. The reason was that it compared the quoted version
4883 of strings as a result "OCSP" > "OCSP Signing" because
4884 " > SPACE. Changed script to store unquoted versions of
4885 names and add quotes on output. It was also omitting some
4886 names from the lookup table if they were given a default
4887 value (that is if SN is missing it is given the same
4888 value as LN and vice versa), these are now added on the
4889 grounds that if an object has a name we should be able to
4890 look it up. Finally added warning output when duplicate
4891 short or long names are found.
4894 *) Changes needed for Tandem NSK.
4895 [Scott Uroff <scott@xypro.com>]
4897 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4898 RSA_padding_check_SSLv23(), special padding was never detected
4899 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4900 version rollback attacks was not effective.
4902 In s23_clnt.c, don't use special rollback-attack detection padding
4903 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4904 client; similarly, in s23_srvr.c, don't do the rollback check if
4905 SSL 2.0 is the only protocol enabled in the server.
4908 *) Make it possible to get hexdumps of unprintable data with 'openssl
4909 asn1parse'. By implication, the functions ASN1_parse_dump() and
4910 BIO_dump_indent() are added.
4913 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4914 these print out strings and name structures based on various
4915 flags including RFC2253 support and proper handling of
4916 multibyte characters. Added options to the 'x509' utility
4917 to allow the various flags to be set.
4920 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4921 Also change the functions X509_cmp_current_time() and
4922 X509_gmtime_adj() work with an ASN1_TIME structure,
4923 this will enable certificates using GeneralizedTime in validity
4924 dates to be checked.
4927 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4928 negative public key encodings) on by default,
4929 NO_NEG_PUBKEY_BUG can be set to disable it.
4932 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4933 content octets. An i2c_ASN1_OBJECT is unnecessary because
4934 the encoding can be trivially obtained from the structure.
4937 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4938 not read locks (CRYPTO_r_[un]lock).
4941 *) A first attempt at creating official support for shared
4942 libraries through configuration. I've kept it so the
4943 default is static libraries only, and the OpenSSL programs
4944 are always statically linked for now, but there are
4945 preparations for dynamic linking in place.
4946 This has been tested on Linux and Tru64.
4949 *) Randomness polling function for Win9x, as described in:
4950 Peter Gutmann, Software Generation of Practically Strong
4954 *) Fix so PRNG is seeded in req if using an already existing
4958 *) New options to smime application. -inform and -outform
4959 allow alternative formats for the S/MIME message including
4960 PEM and DER. The -content option allows the content to be
4961 specified separately. This should allow things like Netscape
4962 form signing output easier to verify.
4965 *) Fix the ASN1 encoding of tags using the 'long form'.
4968 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4969 STRING types. These convert content octets to and from the
4970 underlying type. The actual tag and length octets are
4971 already assumed to have been read in and checked. These
4972 are needed because all other string types have virtually
4973 identical handling apart from the tag. By having versions
4974 of the ASN1 functions that just operate on content octets
4975 IMPLICIT tagging can be handled properly. It also allows
4976 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4977 and ASN1_INTEGER are identical apart from the tag.
4980 *) Change the handling of OID objects as follows:
4982 - New object identifiers are inserted in objects.txt, following
4983 the syntax given in objects.README.
4984 - objects.pl is used to process obj_mac.num and create a new
4986 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4989 This is currently kind of a hack, and the perl code in objects.pl
4990 isn't very elegant, but it works as I intended. The simplest way
4991 to check that it worked correctly is to look in obj_dat.h and
4992 check the array nid_objs and make sure the objects haven't moved
4993 around (this is important!). Additions are OK, as well as
4994 consistent name changes.
4997 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5000 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5001 The given file adds to whatever has already been seeded into the
5002 random pool through the RANDFILE configuration file option or
5003 environment variable, or the default random state file.
5006 *) mkstack.pl now sorts each macro group into lexical order.
5007 Previously the output order depended on the order the files
5008 appeared in the directory, resulting in needless rewriting
5012 *) Patches to make OpenSSL compile under Win32 again. Mostly
5013 work arounds for the VC++ problem that it treats func() as
5014 func(void). Also stripped out the parts of mkdef.pl that
5015 added extra typesafe functions: these no longer exist.
5018 *) Reorganisation of the stack code. The macros are now all
5019 collected in safestack.h . Each macro is defined in terms of
5020 a "stack macro" of the form SKM_<name>(type, a, b). The
5021 DEBUG_SAFESTACK is now handled in terms of function casts,
5022 this has the advantage of retaining type safety without the
5023 use of additional functions. If DEBUG_SAFESTACK is not defined
5024 then the non typesafe macros are used instead. Also modified the
5025 mkstack.pl script to handle the new form. Needs testing to see
5026 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5027 the default if no major problems. Similar behaviour for ASN1_SET_OF
5028 and PKCS12_STACK_OF.
5031 *) When some versions of IIS use the 'NET' form of private key the
5032 key derivation algorithm is different. Normally MD5(password) is
5033 used as a 128 bit RC4 key. In the modified case
5034 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5035 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5036 as the old Netscape_RSA functions except they have an additional
5037 'sgckey' parameter which uses the modified algorithm. Also added
5038 an -sgckey command line option to the rsa utility. Thanks to
5039 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5040 algorithm to openssl-dev.
5043 *) The evp_local.h macros were using 'c.##kname' which resulted in
5044 invalid expansion on some systems (SCO 5.0.5 for example).
5045 Corrected to 'c.kname'.
5046 [Phillip Porch <root@theporch.com>]
5048 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5049 a STACK of email addresses from a certificate or request, these look
5050 in the subject name and the subject alternative name extensions and
5051 omit any duplicate addresses.
5054 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5055 This makes DSA verification about 2 % faster.
5058 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5059 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5060 plus overhead for 1024 bit moduli).
5061 This makes exponentiations about 0.5 % faster for 1024 bit
5062 exponents (as measured by "openssl speed rsa2048").
5065 *) Rename memory handling macros to avoid conflicts with other
5067 Malloc => OPENSSL_malloc
5068 Malloc_locked => OPENSSL_malloc_locked
5069 Realloc => OPENSSL_realloc
5070 Free => OPENSSL_free
5073 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5074 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5077 *) CygWin32 support.
5078 [John Jarvie <jjarvie@newsguy.com>]
5080 *) The type-safe stack code has been rejigged. It is now only compiled
5081 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5082 by default all type-specific stack functions are "#define"d back to
5083 standard stack functions. This results in more streamlined output
5084 but retains the type-safety checking possibilities of the original
5088 *) The STACK code has been cleaned up, and certain type declarations
5089 that didn't make a lot of sense have been brought in line. This has
5090 also involved a cleanup of sorts in safestack.h to more correctly
5091 map type-safe stack functions onto their plain stack counterparts.
5092 This work has also resulted in a variety of "const"ifications of
5093 lots of the code, especially "_cmp" operations which should normally
5094 be prototyped with "const" parameters anyway.
5097 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5098 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5099 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5100 where all of 'md' is used each time the PRNG is used, but 'state'
5101 is used only indexed by a cyclic counter. As entropy may not be
5102 well distributed from the beginning, 'md' is important as a
5103 chaining variable. However, the output function chains only half
5104 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5105 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5106 in all of 'state' being rewritten, with the new values depending
5107 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5110 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5111 the handshake is continued after ssl_verify_cert_chain();
5112 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5113 can lead to 'unexplainable' connection aborts later.
5114 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5116 *) Major EVP API cipher revision.
5117 Add hooks for extra EVP features. This allows various cipher
5118 parameters to be set in the EVP interface. Support added for variable
5119 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5120 setting of RC2 and RC5 parameters.
5122 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5125 Remove lots of duplicated code from the EVP library. For example *every*
5126 cipher init() function handles the 'iv' in the same way according to the
5127 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5128 for CFB and OFB modes they zero ctx->num.
5130 New functionality allows removal of S/MIME code RC2 hack.
5132 Most of the routines have the same form and so can be declared in terms
5135 By shifting this to the top level EVP_CipherInit() it can be removed from
5136 all individual ciphers. If the cipher wants to handle IVs or keys
5137 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5140 Change lots of functions like EVP_EncryptUpdate() to now return a
5141 value: although software versions of the algorithms cannot fail
5142 any installed hardware versions can.
5145 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5146 this option is set, tolerate broken clients that send the negotiated
5147 protocol version number instead of the requested protocol version
5151 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5152 i.e. non-zero for export ciphersuites, zero otherwise.
5153 Previous versions had this flag inverted, inconsistent with
5154 rsa_tmp_cb (..._TMP_RSA_CB).
5155 [Bodo Moeller; problem reported by Amit Chopra]
5157 *) Add missing DSA library text string. Work around for some IIS
5158 key files with invalid SEQUENCE encoding.
5161 *) Add a document (doc/standards.txt) that list all kinds of standards
5162 and so on that are implemented in OpenSSL.
5165 *) Enhance c_rehash script. Old version would mishandle certificates
5166 with the same subject name hash and wouldn't handle CRLs at all.
5167 Added -fingerprint option to crl utility, to support new c_rehash
5171 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5174 *) Fix for SSL server purpose checking. Server checking was
5175 rejecting certificates which had extended key usage present
5176 but no ssl client purpose.
5177 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5179 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5180 is a little unclear about how a blank password is handled.
5181 Since the password in encoded as a BMPString with terminating
5182 double NULL a zero length password would end up as just the
5183 double NULL. However no password at all is different and is
5184 handled differently in the PKCS#12 key generation code. NS
5185 treats a blank password as zero length. MSIE treats it as no
5186 password on export: but it will try both on import. We now do
5187 the same: PKCS12_parse() tries zero length and no password if
5188 the password is set to "" or NULL (NULL is now a valid password:
5189 it wasn't before) as does the pkcs12 application.
5192 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5193 perror when PEM_read_bio_X509_REQ fails, the error message must
5194 be obtained from the error queue.
5197 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5198 it in ERR_remove_state if appropriate, and change ERR_get_state
5199 accordingly to avoid race conditions (this is necessary because
5200 thread_hash is no longer constant once set).
5203 *) Bugfix for linux-elf makefile.one.
5206 *) RSA_get_default_method() will now cause a default
5207 RSA_METHOD to be chosen if one doesn't exist already.
5208 Previously this was only set during a call to RSA_new()
5209 or RSA_new_method(NULL) meaning it was possible for
5210 RSA_get_default_method() to return NULL.
5213 *) Added native name translation to the existing DSO code
5214 that will convert (if the flag to do so is set) filenames
5215 that are sufficiently small and have no path information
5216 into a canonical native form. Eg. "blah" converted to
5217 "libblah.so" or "blah.dll" etc.
5220 *) New function ERR_error_string_n(e, buf, len) which is like
5221 ERR_error_string(e, buf), but writes at most 'len' bytes
5222 including the 0 terminator. For ERR_error_string_n, 'buf'
5224 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5226 *) CONF library reworked to become more general. A new CONF
5227 configuration file reader "class" is implemented as well as a
5228 new functions (NCONF_*, for "New CONF") to handle it. The now
5229 old CONF_* functions are still there, but are reimplemented to
5230 work in terms of the new functions. Also, a set of functions
5231 to handle the internal storage of the configuration data is
5232 provided to make it easier to write new configuration file
5233 reader "classes" (I can definitely see something reading a
5234 configuration file in XML format, for example), called _CONF_*,
5235 or "the configuration storage API"...
5237 The new configuration file reading functions are:
5239 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5240 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5242 NCONF_default, NCONF_WIN32
5244 NCONF_dump_fp, NCONF_dump_bio
5246 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5247 NCONF_new creates a new CONF object. This works in the same way
5248 as other interfaces in OpenSSL, like the BIO interface.
5249 NCONF_dump_* dump the internal storage of the configuration file,
5250 which is useful for debugging. All other functions take the same
5251 arguments as the old CONF_* functions wth the exception of the
5252 first that must be a `CONF *' instead of a `LHASH *'.
5254 To make it easer to use the new classes with the old CONF_* functions,
5255 the function CONF_set_default_method is provided.
5258 *) Add '-tls1' option to 'openssl ciphers', which was already
5259 mentioned in the documentation but had not been implemented.
5260 (This option is not yet really useful because even the additional
5261 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5264 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5265 OpenSSL-based applications) load shared libraries and bind to
5266 them in a portable way.
5267 [Geoff Thorpe, with contributions from Richard Levitte]
5269 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5271 *) Make sure _lrotl and _lrotr are only used with MSVC.
5273 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5274 (the default implementation of RAND_status).
5276 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5277 to '-clrext' (= clear extensions), as intended and documented.
5278 [Bodo Moeller; inconsistency pointed out by Michael Attili
5281 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5282 was larger than the MD block size.
5283 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5285 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5286 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5287 using the passed key: if the passed key was a private key the result
5288 of X509_print(), for example, would be to print out all the private key
5292 *) des_quad_cksum() byte order bug fix.
5293 [Ulf Möller, using the problem description in krb4-0.9.7, where
5294 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5296 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5298 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5300 *) For easily testing in shell scripts whether some command
5301 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5302 returns with exit code 0 iff no command of the given name is available.
5303 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5304 the output goes to stdout and nothing is printed to stderr.
5305 Additional arguments are always ignored.
5307 Since for each cipher there is a command of the same name,
5308 the 'no-cipher' compilation switches can be tested this way.
5310 ('openssl no-XXX' is not able to detect pseudo-commands such
5311 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5314 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5317 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5318 is set; it will be thrown away anyway because each handshake creates
5320 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5321 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5322 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5323 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5326 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5327 'Q' and 'R' lose their special meanings (quit/renegotiate).
5328 This is part of what -quiet does; unlike -quiet, -ign_eof
5329 does not suppress any output.
5332 *) Add compatibility options to the purpose and trust code. The
5333 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5334 accepts a certificate or CA, this was the previous behaviour,
5335 with all the associated security issues.
5337 X509_TRUST_COMPAT is the old trust behaviour: only and
5338 automatically trust self signed roots in certificate store. A
5339 new trust setting X509_TRUST_DEFAULT is used to specify that
5340 a purpose has no associated trust setting and it should instead
5341 use the value in the default purpose.
5344 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5345 and fix a memory leak.
5348 *) In util/mkerr.pl (which implements 'make errors'), preserve
5349 reason strings from the previous version of the .c file, as
5350 the default to have only downcase letters (and digits) in
5351 automatically generated reasons codes is not always appropriate.
5354 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5355 using strerror. Previously, ERR_reason_error_string() returned
5356 library names as reason strings for SYSerr; but SYSerr is a special
5357 case where small numbers are errno values, not library numbers.
5360 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5361 converts DSA parameters into DH parameters. (When creating parameters,
5362 DSA_generate_parameters is used.)
5365 *) Include 'length' (recommended exponent length) in C code generated
5366 by 'openssl dhparam -C'.
5369 *) The second argument to set_label in perlasm was already being used
5370 so couldn't be used as a "file scope" flag. Moved to third argument
5374 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5375 instead of RAND_bytes for encryption IVs and salts.
5378 *) Include RAND_status() into RAND_METHOD instead of implementing
5379 it only for md_rand.c Otherwise replacing the PRNG by calling
5380 RAND_set_rand_method would be impossible.
5383 *) Don't let DSA_generate_key() enter an infinite loop if the random
5384 number generation fails.
5387 *) New 'rand' application for creating pseudo-random output.
5390 *) Added configuration support for Linux/IA64
5391 [Rolf Haberrecker <rolf@suse.de>]
5393 *) Assembler module support for Mingw32.
5396 *) Shared library support for HPUX (in shlib/).
5397 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5399 *) Shared library support for Solaris gcc.
5400 [Lutz Behnke <behnke@trustcenter.de>]
5402 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5404 *) PKCS7_encrypt() was adding text MIME headers twice because they
5405 were added manually and by SMIME_crlf_copy().
5408 *) In bntest.c don't call BN_rand with zero bits argument.
5409 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5411 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5412 case was implemented. This caused BN_div_recp() to fail occasionally.
5415 *) Add an optional second argument to the set_label() in the perl
5416 assembly language builder. If this argument exists and is set
5417 to 1 it signals that the assembler should use a symbol whose
5418 scope is the entire file, not just the current function. This
5419 is needed with MASM which uses the format label:: for this scope.
5420 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5422 *) Change the ASN1 types so they are typedefs by default. Before
5423 almost all types were #define'd to ASN1_STRING which was causing
5424 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5428 *) Change names of new functions to the new get1/get0 naming
5429 convention: After 'get1', the caller owns a reference count
5430 and has to call ..._free; 'get0' returns a pointer to some
5431 data structure without incrementing reference counters.
5432 (Some of the existing 'get' functions increment a reference
5433 counter, some don't.)
5434 Similarly, 'set1' and 'add1' functions increase reference
5435 counters or duplicate objects.
5438 *) Allow for the possibility of temp RSA key generation failure:
5439 the code used to assume it always worked and crashed on failure.
5442 *) Fix potential buffer overrun problem in BIO_printf().
5443 [Ulf Möller, using public domain code by Patrick Powell; problem
5444 pointed out by David Sacerdote <das33@cornell.edu>]
5446 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5447 RAND_egd() and RAND_status(). In the command line application,
5448 the EGD socket can be specified like a seed file using RANDFILE
5452 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5453 Some CAs (e.g. Verisign) distribute certificates in this form.
5456 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5457 list to exclude them. This means that no special compilation option
5458 is needed to use anonymous DH: it just needs to be included in the
5462 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5463 EVP_MD_type. The old functionality is available in a new macro called
5464 EVP_MD_md(). Change code that uses it and update docs.
5467 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5468 where the 'void *' argument is replaced by a function pointer argument.
5469 Previously 'void *' was abused to point to functions, which works on
5470 many platforms, but is not correct. As these functions are usually
5471 called by macros defined in OpenSSL header files, most source code
5472 should work without changes.
5475 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5476 sections with information on -D... compiler switches used for
5477 compiling the library so that applications can see them. To enable
5478 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5479 must be defined. E.g.,
5480 #define OPENSSL_ALGORITHM_DEFINES
5481 #include <openssl/opensslconf.h>
5482 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5483 [Richard Levitte, Ulf and Bodo Möller]
5485 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5489 *) Change the 'other' type in certificate aux info to a STACK_OF
5490 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5491 the required ASN1 format: arbitrary types determined by an OID.
5494 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5495 argument to 'req'. This is not because the function is newer or
5496 better than others it just uses the work 'NEW' in the certificate
5497 request header lines. Some software needs this.
5500 *) Reorganise password command line arguments: now passwords can be
5501 obtained from various sources. Delete the PEM_cb function and make
5502 it the default behaviour: i.e. if the callback is NULL and the
5503 usrdata argument is not NULL interpret it as a null terminated pass
5504 phrase. If usrdata and the callback are NULL then the pass phrase
5505 is prompted for as usual.
5508 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5509 the support is automatically enabled. The resulting binaries will
5510 autodetect the card and use it if present.
5511 [Ben Laurie and Compaq Inc.]
5513 *) Work around for Netscape hang bug. This sends certificate request
5514 and server done in one record. Since this is perfectly legal in the
5515 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5516 the bugs/SSLv3 entry for more info.
5519 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5522 *) Add -rand argument to smime and pkcs12 applications and read/write
5526 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5529 *) Add command line password options to the remaining applications.
5532 *) Bug fix for BN_div_recp() for numerators with an even number of
5536 *) More tests in bntest.c, and changed test_bn output.
5539 *) ./config recognizes MacOS X now.
5542 *) Bug fix for BN_div() when the first words of num and divsor are
5543 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5546 *) Add support for various broken PKCS#8 formats, and command line
5547 options to produce them.
5550 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5551 get temporary BIGNUMs from a BN_CTX.
5554 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5558 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5559 include a #define from the old name to the new. The original intent
5560 was that statically linked binaries could for example just call
5561 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5562 link with digests. This never worked becayse SSLeay_add_all_digests()
5563 and SSLeay_add_all_ciphers() were in the same source file so calling
5564 one would link with the other. They are now in separate source files.
5567 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5570 *) Use a less unusual form of the Miller-Rabin primality test (it used
5571 a binary algorithm for exponentiation integrated into the Miller-Rabin
5572 loop, our standard modexp algorithms are faster).
5575 *) Support for the EBCDIC character set completed.
5576 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5578 *) Source code cleanups: use const where appropriate, eliminate casts,
5579 use void * instead of char * in lhash.
5582 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5583 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5584 this the server could overwrite ephemeral keys that the client
5588 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5589 using 50 iterations of the Rabin-Miller test.
5591 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5592 iterations of the Rabin-Miller test as required by the appendix
5593 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5594 As BN_is_prime_fasttest includes trial division, DSA parameter
5595 generation becomes much faster.
5597 This implies a change for the callback functions in DSA_is_prime
5598 and DSA_generate_parameters: The callback function is called once
5599 for each positive witness in the Rabin-Miller test, not just
5600 occasionally in the inner loop; and the parameters to the
5601 callback function now provide an iteration count for the outer
5602 loop rather than for the current invocation of the inner loop.
5603 DSA_generate_parameters additionally can call the callback
5604 function with an 'iteration count' of -1, meaning that a
5605 candidate has passed the trial division test (when q is generated
5606 from an application-provided seed, trial division is skipped).
5609 *) New function BN_is_prime_fasttest that optionally does trial
5610 division before starting the Rabin-Miller test and has
5611 an additional BN_CTX * argument (whereas BN_is_prime always
5612 has to allocate at least one BN_CTX).
5613 'callback(1, -1, cb_arg)' is called when a number has passed the
5614 trial division stage.
5617 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5621 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5624 *) New function BN_pseudo_rand().
5627 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5628 bignum version of BN_from_montgomery() with the working code from
5629 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5633 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5634 made it impossible to use the same SSL_SESSION data structure in
5635 SSL2 clients in multiple threads.
5638 *) The return value of RAND_load_file() no longer counts bytes obtained
5639 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5640 to seed the PRNG (previously an explicit byte count was required).
5641 [Ulf Möller, Bodo Möller]
5643 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5644 used (char *) instead of (void *) and had casts all over the place.
5647 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5650 *) Retain source code compatibility for BN_prime_checks macro:
5651 BN_is_prime(..., BN_prime_checks, ...) now uses
5652 BN_prime_checks_for_size to determine the appropriate number of
5653 Rabin-Miller iterations.
5656 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5657 DH_CHECK_P_NOT_SAFE_PRIME.
5658 (Check if this is true? OpenPGP calls them "strong".)
5661 *) Merge the functionality of "dh" and "gendh" programs into a new program
5662 "dhparam". The old programs are retained for now but will handle DH keys
5663 (instead of parameters) in future.
5666 *) Make the ciphers, s_server and s_client programs check the return values
5667 when a new cipher list is set.
5670 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5671 ciphers. Before when the 56bit ciphers were enabled the sorting was
5674 The syntax for the cipher sorting has been extended to support sorting by
5675 cipher-strength (using the strength_bits hard coded in the tables).
5676 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5678 Fix a bug in the cipher-command parser: when supplying a cipher command
5679 string with an "undefined" symbol (neither command nor alphanumeric
5680 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5681 an error is flagged.
5683 Due to the strength-sorting extension, the code of the
5684 ssl_create_cipher_list() function was completely rearranged. I hope that
5685 the readability was also increased :-)
5686 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5688 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5689 for the first serial number and places 2 in the serial number file. This
5690 avoids problems when the root CA is created with serial number zero and
5691 the first user certificate has the same issuer name and serial number
5695 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5696 the new code. Add documentation for this stuff.
5699 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5700 X509_*() to X509at_*() on the grounds that they don't handle X509
5701 structures and behave in an analagous way to the X509v3 functions:
5702 they shouldn't be called directly but wrapper functions should be used
5705 So we also now have some wrapper functions that call the X509at functions
5706 when passed certificate requests. (TO DO: similar things can be done with
5707 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5708 things. Some of these need some d2i or i2d and print functionality
5709 because they handle more complex structures.)
5712 *) Add missing #ifndefs that caused missing symbols when building libssl
5713 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5714 NO_RSA in ssl/s2*.c.
5715 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5717 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5718 has a return value which indicates the quality of the random data
5719 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5720 error queue. New function RAND_pseudo_bytes() generates output that is
5721 guaranteed to be unique but not unpredictable. RAND_add is like
5722 RAND_seed, but takes an extra argument for an entropy estimate
5723 (RAND_seed always assumes full entropy).
5726 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5727 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5728 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5729 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5730 false-positive rate of at most 2^-80 for random input.
5733 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5736 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5737 in the 0.9.5 release), this returns the chain
5738 from an X509_CTX structure with a dup of the stack and all
5739 the X509 reference counts upped: so the stack will exist
5740 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5743 Also make SSL_SESSION_print() print out the verify return
5747 *) Add manpage for the pkcs12 command. Also change the default
5748 behaviour so MAC iteration counts are used unless the new
5749 -nomaciter option is used. This improves file security and
5750 only older versions of MSIE (4.0 for example) need it.
5753 *) Honor the no-xxx Configure options when creating .DEF files.
5756 *) Add PKCS#10 attributes to field table: challengePassword,
5757 unstructuredName and unstructuredAddress. These are taken from
5758 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5759 international characters are used.
5761 More changes to X509_ATTRIBUTE code: allow the setting of types
5762 based on strings. Remove the 'loc' parameter when adding
5763 attributes because these will be a SET OF encoding which is sorted
5767 *) Initial changes to the 'req' utility to allow request generation
5768 automation. This will allow an application to just generate a template
5769 file containing all the field values and have req construct the
5772 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5773 used all over the place including certificate requests and PKCS#7
5774 structures. They are currently handled manually where necessary with
5775 some primitive wrappers for PKCS#7. The new functions behave in a
5776 manner analogous to the X509 extension functions: they allow
5777 attributes to be looked up by NID and added.
5779 Later something similar to the X509V3 code would be desirable to
5780 automatically handle the encoding, decoding and printing of the
5781 more complex types. The string types like challengePassword can
5782 be handled by the string table functions.
5784 Also modified the multi byte string table handling. Now there is
5785 a 'global mask' which masks out certain types. The table itself
5786 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5787 is useful when for example there is only one permissible type
5788 (as in countryName) and using the mask might result in no valid
5792 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5793 SSL_get_peer_finished to allow applications to obtain the latest
5794 Finished messages sent to the peer or expected from the peer,
5795 respectively. (SSL_get_peer_finished is usually the Finished message
5796 actually received from the peer, otherwise the protocol will be aborted.)
5798 As the Finished message are message digests of the complete handshake
5799 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5800 be used for external authentication procedures when the authentication
5801 provided by SSL/TLS is not desired or is not enough.
5804 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5805 the host supports BWX extension and if Compaq C is present on the
5806 $PATH. Just exploiting of the BWX extension results in 20-30%
5807 performance kick for some algorithms, e.g. DES and RC4 to mention
5808 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5812 *) Add support for MS "fast SGC". This is arguably a violation of the
5813 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5814 weak crypto and after checking the certificate is SGC a second one
5815 with strong crypto. MS SGC stops the first handshake after receiving
5816 the server certificate message and sends a second client hello. Since
5817 a server will typically do all the time consuming operations before
5818 expecting any further messages from the client (server key exchange
5819 is the most expensive) there is little difference between the two.
5821 To get OpenSSL to support MS SGC we have to permit a second client
5822 hello message after we have sent server done. In addition we have to
5823 reset the MAC if we do get this second client hello.
5826 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5827 if a DER encoded private key is RSA or DSA traditional format. Changed
5828 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5829 format DER encoded private key. Newer code should use PKCS#8 format which
5830 has the key type encoded in the ASN1 structure. Added DER private key
5831 support to pkcs8 application.
5834 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5835 ciphersuites has been selected (as required by the SSL 3/TLS 1
5836 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5837 is set, we interpret this as a request to violate the specification
5838 (the worst that can happen is a handshake failure, and 'correct'
5839 behaviour would result in a handshake failure anyway).
5842 *) In SSL_CTX_add_session, take into account that there might be multiple
5843 SSL_SESSION structures with the same session ID (e.g. when two threads
5844 concurrently obtain them from an external cache).
5845 The internal cache can handle only one SSL_SESSION with a given ID,
5846 so if there's a conflict, we now throw out the old one to achieve
5850 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5851 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5852 some routines that use cipher OIDs: some ciphers do not have OIDs
5853 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5857 *) Simplify the trust setting structure and code. Now we just have
5858 two sequences of OIDs for trusted and rejected settings. These will
5859 typically have values the same as the extended key usage extension
5860 and any application specific purposes.
5862 The trust checking code now has a default behaviour: it will just
5863 check for an object with the same NID as the passed id. Functions can
5864 be provided to override either the default behaviour or the behaviour
5865 for a given id. SSL client, server and email already have functions
5866 in place for compatibility: they check the NID and also return "trusted"
5867 if the certificate is self signed.
5870 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5871 traditional format into an EVP_PKEY structure.
5874 *) Add a password callback function PEM_cb() which either prompts for
5875 a password if usr_data is NULL or otherwise assumes it is a null
5876 terminated password. Allow passwords to be passed on command line
5877 environment or config files in a few more utilities.
5880 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5881 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5882 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5883 Update documentation.
5886 *) Support for ASN1 "NULL" type. This could be handled before by using
5887 ASN1_TYPE but there wasn't any function that would try to read a NULL
5888 and produce an error if it couldn't. For compatibility we also have
5889 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5890 don't allocate anything because they don't need to.
5893 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5895 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5897 *) Rebuild of the memory allocation routines used by OpenSSL code and
5898 possibly others as well. The purpose is to make an interface that
5899 provide hooks so anyone can build a separate set of allocation and
5900 deallocation routines to be used by OpenSSL, for example memory
5901 pool implementations, or something else, which was previously hard
5902 since Malloc(), Realloc() and Free() were defined as macros having
5903 the values malloc, realloc and free, respectively (except for Win32
5904 compilations). The same is provided for memory debugging code.
5905 OpenSSL already comes with functionality to find memory leaks, but
5906 this gives people a chance to debug other memory problems.
5908 With these changes, a new set of functions and macros have appeared:
5910 CRYPTO_set_mem_debug_functions() [F]
5911 CRYPTO_get_mem_debug_functions() [F]
5912 CRYPTO_dbg_set_options() [F]
5913 CRYPTO_dbg_get_options() [F]
5914 CRYPTO_malloc_debug_init() [M]
5916 The memory debug functions are NULL by default, unless the library
5917 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5918 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5919 gives the standard debugging functions that come with OpenSSL) or
5920 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5921 provided by the library user) must be used. When the standard
5922 debugging functions are used, CRYPTO_dbg_set_options can be used to
5923 request additional information:
5924 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5925 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5927 Also, things like CRYPTO_set_mem_functions will always give the
5928 expected result (the new set of functions is used for allocation
5929 and deallocation) at all times, regardless of platform and compiler
5932 To finish it up, some functions that were never use in any other
5933 way than through macros have a new API and new semantic:
5936 CRYPTO_dbg_realloc()
5939 All macros of value have retained their old syntax.
5940 [Richard Levitte and Bodo Moeller]
5942 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5943 ordering of SMIMECapabilities wasn't in "strength order" and there
5944 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5948 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5949 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5950 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5952 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5953 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5954 functionality to handle multipart/signed properly) and a utility
5955 called 'smime' to call all this stuff. This is based on code I
5956 originally wrote for Celo who have kindly allowed it to be
5957 included in OpenSSL.
5960 *) Add variants des_set_key_checked and des_set_key_unchecked of
5961 des_set_key (aka des_key_sched). Global variable des_check_key
5962 decides which of these is called by des_set_key; this way
5963 des_check_key behaves as it always did, but applications and
5964 the library itself, which was buggy for des_check_key == 1,
5965 have a cleaner way to pick the version they need.
5968 *) New function PKCS12_newpass() which changes the password of a
5972 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5973 dynamic mix. In both cases the ids can be used as an index into the
5974 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5975 functions so they accept a list of the field values and the
5976 application doesn't need to directly manipulate the X509_TRUST
5980 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5984 *) Modify the way the V3 extension code looks up extensions. This now
5985 works in a similar way to the object code: we have some "standard"
5986 extensions in a static table which is searched with OBJ_bsearch()
5987 and the application can add dynamic ones if needed. The file
5988 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5989 updated whenever a new extension is added to the core code and kept
5990 in ext_nid order. There is a simple program 'tabtest.c' which checks
5991 this. New extensions are not added too often so this file can readily
5992 be maintained manually.
5994 There are two big advantages in doing things this way. The extensions
5995 can be looked up immediately and no longer need to be "added" using
5996 X509V3_add_standard_extensions(): this function now does nothing.
5997 [Side note: I get *lots* of email saying the extension code doesn't
5998 work because people forget to call this function]
5999 Also no dynamic allocation is done unless new extensions are added:
6000 so if we don't add custom extensions there is no need to call
6001 X509V3_EXT_cleanup().
6004 *) Modify enc utility's salting as follows: make salting the default. Add a
6005 magic header, so unsalted files fail gracefully instead of just decrypting
6006 to garbage. This is because not salting is a big security hole, so people
6007 should be discouraged from doing it.
6010 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6011 digest to be passed on the command line but it only used this
6012 parameter when signing a certificate. Modified so all relevant
6013 operations are affected by the digest parameter including the
6014 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6015 DSA key was used because it didn't fix the digest.
6018 *) Initial certificate chain verify code. Currently tests the untrusted
6019 certificates for consistency with the verify purpose (which is set
6020 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6022 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6023 this is because it will reject chains with invalid extensions whereas
6024 every previous version of OpenSSL and SSLeay made no checks at all.
6026 Trust code: checks the root CA for the relevant trust settings. Trust
6027 settings have an initial value consistent with the verify purpose: e.g.
6028 if the verify purpose is for SSL client use it expects the CA to be
6029 trusted for SSL client use. However the default value can be changed to
6030 permit custom trust settings: one example of this would be to only trust
6031 certificates from a specific "secure" set of CAs.
6033 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6034 which should be used for version portability: especially since the
6035 verify structure is likely to change more often now.
6037 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6038 to set them. If not set then assume SSL clients will verify SSL servers
6041 Two new options to the verify program: -untrusted allows a set of
6042 untrusted certificates to be passed in and -purpose which sets the
6043 intended purpose of the certificate. If a purpose is set then the
6044 new chain verify code is used to check extension consistency.
6047 *) Support for the authority information access extension.
6050 *) Modify RSA and DSA PEM read routines to transparently handle
6051 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6052 public keys in a format compatible with certificate
6053 SubjectPublicKeyInfo structures. Unfortunately there were already
6054 functions called *_PublicKey_* which used various odd formats so
6055 these are retained for compatibility: however the DSA variants were
6056 never in a public release so they have been deleted. Changed dsa/rsa
6057 utilities to handle the new format: note no releases ever handled public
6058 keys so we should be OK.
6060 The primary motivation for this change is to avoid the same fiasco
6061 that dogs private keys: there are several incompatible private key
6062 formats some of which are standard and some OpenSSL specific and
6063 require various evil hacks to allow partial transparent handling and
6064 even then it doesn't work with DER formats. Given the option anything
6065 other than PKCS#8 should be dumped: but the other formats have to
6066 stay in the name of compatibility.
6068 With public keys and the benefit of hindsight one standard format
6069 is used which works with EVP_PKEY, RSA or DSA structures: though
6070 it clearly returns an error if you try to read the wrong kind of key.
6072 Added a -pubkey option to the 'x509' utility to output the public key.
6073 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6074 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6075 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6076 that do the same as the EVP_PKEY_assign_*() except they up the
6077 reference count of the added key (they don't "swallow" the
6081 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6082 CRLs would fail if the file contained no certificates or no CRLs:
6083 added a new function to read in both types and return the number
6084 read: this means that if none are read it will be an error. The
6085 DER versions of the certificate and CRL reader would always fail
6086 because it isn't possible to mix certificates and CRLs in DER format
6087 without choking one or the other routine. Changed this to just read
6088 a certificate: this is the best we can do. Also modified the code
6089 in apps/verify.c to take notice of return codes: it was previously
6090 attempting to read in certificates from NULL pointers and ignoring
6091 any errors: this is one reason why the cert and CRL reader seemed
6092 to work. It doesn't check return codes from the default certificate
6093 routines: these may well fail if the certificates aren't installed.
6096 *) Code to support otherName option in GeneralName.
6099 *) First update to verify code. Change the verify utility
6100 so it warns if it is passed a self signed certificate:
6101 for consistency with the normal behaviour. X509_verify
6102 has been modified to it will now verify a self signed
6103 certificate if *exactly* the same certificate appears
6104 in the store: it was previously impossible to trust a
6105 single self signed certificate. This means that:
6106 openssl verify ss.pem
6107 now gives a warning about a self signed certificate but
6108 openssl verify -CAfile ss.pem ss.pem
6112 *) For servers, store verify_result in SSL_SESSION data structure
6113 (and add it to external session representation).
6114 This is needed when client certificate verifications fails,
6115 but an application-provided verification callback (set by
6116 SSL_CTX_set_cert_verify_callback) allows accepting the session
6117 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6118 but returns 1): When the session is reused, we have to set
6119 ssl->verify_result to the appropriate error code to avoid
6121 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6123 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6124 case in PKCS7_dataInit() where the signed PKCS7 structure
6125 didn't contain any existing data because it was being created.
6126 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6128 *) Add a salt to the key derivation routines in enc.c. This
6129 forms the first 8 bytes of the encrypted file. Also add a
6130 -S option to allow a salt to be input on the command line.
6133 *) New function X509_cmp(). Oddly enough there wasn't a function
6134 to compare two certificates. We do this by working out the SHA1
6135 hash and comparing that. X509_cmp() will be needed by the trust
6139 *) SSL_get1_session() is like SSL_get_session(), but increments
6140 the reference count in the SSL_SESSION returned.
6141 [Geoff Thorpe <geoff@eu.c2.net>]
6143 *) Fix for 'req': it was adding a null to request attributes.
6144 Also change the X509_LOOKUP and X509_INFO code to handle
6145 certificate auxiliary information.
6148 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6152 *) Add the possibility to add extra information to the memory leak
6153 detecting output, to form tracebacks, showing from where each
6154 allocation was originated: CRYPTO_push_info("constant string") adds
6155 the string plus current file name and line number to a per-thread
6156 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6157 is like calling CYRPTO_pop_info() until the stack is empty.
6158 Also updated memory leak detection code to be multi-thread-safe.
6161 *) Add options -text and -noout to pkcs7 utility and delete the
6162 encryption options which never did anything. Update docs.
6165 *) Add options to some of the utilities to allow the pass phrase
6166 to be included on either the command line (not recommended on
6167 OSes like Unix) or read from the environment. Update the
6168 manpages and fix a few bugs.
6171 *) Add a few manpages for some of the openssl commands.
6174 *) Fix the -revoke option in ca. It was freeing up memory twice,
6175 leaking and not finding already revoked certificates.
6178 *) Extensive changes to support certificate auxiliary information.
6179 This involves the use of X509_CERT_AUX structure and X509_AUX
6180 functions. An X509_AUX function such as PEM_read_X509_AUX()
6181 can still read in a certificate file in the usual way but it
6182 will also read in any additional "auxiliary information". By
6183 doing things this way a fair degree of compatibility can be
6184 retained: existing certificates can have this information added
6185 using the new 'x509' options.
6187 Current auxiliary information includes an "alias" and some trust
6188 settings. The trust settings will ultimately be used in enhanced
6189 certificate chain verification routines: currently a certificate
6190 can only be trusted if it is self signed and then it is trusted
6194 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6195 The problem was that one of the replacement routines had not been working
6196 since SSLeay releases. For now the offending routine has been replaced
6197 with non-optimised assembler. Even so, this now gives around 95%
6198 performance improvement for 1024 bit RSA signs.
6201 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6202 handling. Most clients have the effective key size in bits equal to
6203 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6204 A few however don't do this and instead use the size of the decrypted key
6205 to determine the RC2 key length and the AlgorithmIdentifier to determine
6206 the effective key length. In this case the effective key length can still
6207 be 40 bits but the key length can be 168 bits for example. This is fixed
6208 by manually forcing an RC2 key into the EVP_PKEY structure because the
6209 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6210 the key length and effective key length are equal.
6213 *) Add a bunch of functions that should simplify the creation of
6214 X509_NAME structures. Now you should be able to do:
6215 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6216 and have it automatically work out the correct field type and fill in
6217 the structures. The more adventurous can try:
6218 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6219 and it will (hopefully) work out the correct multibyte encoding.
6222 *) Change the 'req' utility to use the new field handling and multibyte
6223 copy routines. Before the DN field creation was handled in an ad hoc
6224 way in req, ca, and x509 which was rather broken and didn't support
6225 BMPStrings or UTF8Strings. Since some software doesn't implement
6226 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6227 using the dirstring_type option. See the new comment in the default
6228 openssl.cnf for more info.
6231 *) Make crypto/rand/md_rand.c more robust:
6232 - Assure unique random numbers after fork().
6233 - Make sure that concurrent threads access the global counter and
6234 md serializably so that we never lose entropy in them
6235 or use exactly the same state in multiple threads.
6236 Access to the large state is not always serializable because
6237 the additional locking could be a performance killer, and
6238 md should be large enough anyway.
6241 *) New file apps/app_rand.c with commonly needed functionality
6242 for handling the random seed file.
6244 Use the random seed file in some applications that previously did not:
6246 dsaparam -genkey (which also ignored its '-rand' option),
6249 x509 (when signing).
6250 Except on systems with /dev/urandom, it is crucial to have a random
6251 seed file at least for key creation, DSA signing, and for DH exchanges;
6252 for RSA signatures we could do without one.
6254 gendh and gendsa (unlike genrsa) used to read only the first byte
6255 of each file listed in the '-rand' option. The function as previously
6256 found in genrsa is now in app_rand.c and is used by all programs
6257 that support '-rand'.
6260 *) In RAND_write_file, use mode 0600 for creating files;
6261 don't just chmod when it may be too late.
6264 *) Report an error from X509_STORE_load_locations
6265 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6268 *) New function ASN1_mbstring_copy() this copies a string in either
6269 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6270 into an ASN1_STRING type. A mask of permissible types is passed
6271 and it chooses the "minimal" type to use or an error if not type
6275 *) Add function equivalents to the various macros in asn1.h. The old
6276 macros are retained with an M_ prefix. Code inside the library can
6277 use the M_ macros. External code (including the openssl utility)
6278 should *NOT* in order to be "shared library friendly".
6281 *) Add various functions that can check a certificate's extensions
6282 to see if it usable for various purposes such as SSL client,
6283 server or S/MIME and CAs of these types. This is currently
6284 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6285 verification. Also added a -purpose flag to x509 utility to
6286 print out all the purposes.
6289 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6293 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6294 for, obtain and decode and extension and obtain its critical flag.
6295 This allows all the necessary extension code to be handled in a
6296 single function call.
6299 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6300 platforms. See crypto/rc4/rc4_enc.c for further details.
6303 *) New -noout option to asn1parse. This causes no output to be produced
6304 its main use is when combined with -strparse and -out to extract data
6305 from a file (which may not be in ASN.1 format).
6308 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6309 when producing the local key id.
6310 [Richard Levitte <levitte@stacken.kth.se>]
6312 *) New option -dhparam in s_server. This allows a DH parameter file to be
6313 stated explicitly. If it is not stated then it tries the first server
6314 certificate file. The previous behaviour hard coded the filename
6318 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6319 a public key to be input or output. For example:
6320 openssl rsa -in key.pem -pubout -out pubkey.pem
6321 Also added necessary DSA public key functions to handle this.
6324 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6325 in the message. This was handled by allowing
6326 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6327 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6329 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6330 to the end of the strings whereas this didn't. This would cause problems
6331 if strings read with d2i_ASN1_bytes() were later modified.
6332 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6334 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6335 data and it contains EOF it will end up returning an error. This is
6336 caused by input 46 bytes long. The cause is due to the way base64
6337 BIOs find the start of base64 encoded data. They do this by trying a
6338 trial decode on each line until they find one that works. When they
6339 do a flag is set and it starts again knowing it can pass all the
6340 data directly through the decoder. Unfortunately it doesn't reset
6341 the context it uses. This means that if EOF is reached an attempt
6342 is made to pass two EOFs through the context and this causes the
6343 resulting error. This can also cause other problems as well. As is
6344 usual with these problems it takes *ages* to find and the fix is
6345 trivial: move one line.
6346 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6348 *) Ugly workaround to get s_client and s_server working under Windows. The
6349 old code wouldn't work because it needed to select() on sockets and the
6350 tty (for keypresses and to see if data could be written). Win32 only
6351 supports select() on sockets so we select() with a 1s timeout on the
6352 sockets and then see if any characters are waiting to be read, if none
6353 are present then we retry, we also assume we can always write data to
6354 the tty. This isn't nice because the code then blocks until we've
6355 received a complete line of data and it is effectively polling the
6356 keyboard at 1s intervals: however it's quite a bit better than not
6357 working at all :-) A dedicated Windows application might handle this
6358 with an event loop for example.
6361 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6362 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6363 will be called when RSA_sign() and RSA_verify() are used. This is useful
6364 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6365 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6366 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6367 This necessitated the support of an extra signature type NID_md5_sha1
6368 for SSL signatures and modifications to the SSL library to use it instead
6369 of calling RSA_public_decrypt() and RSA_private_encrypt().
6372 *) Add new -verify -CAfile and -CApath options to the crl program, these
6373 will lookup a CRL issuers certificate and verify the signature in a
6374 similar way to the verify program. Tidy up the crl program so it
6375 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6376 less strict. It will now permit CRL extensions even if it is not
6377 a V2 CRL: this will allow it to tolerate some broken CRLs.
6380 *) Initialize all non-automatic variables each time one of the openssl
6381 sub-programs is started (this is necessary as they may be started
6382 multiple times from the "OpenSSL>" prompt).
6383 [Lennart Bang, Bodo Moeller]
6385 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6386 removing all other RSA functionality (this is what NO_RSA does). This
6387 is so (for example) those in the US can disable those operations covered
6388 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6392 *) Non-copying interface to BIO pairs.
6393 (still largely untested)
6396 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6397 ASCII string. This was handled independently in various places before.
6400 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6401 UTF8 strings a character at a time.
6404 *) Use client_version from client hello to select the protocol
6405 (s23_srvr.c) and for RSA client key exchange verification
6406 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6409 *) Add various utility functions to handle SPKACs, these were previously
6410 handled by poking round in the structure internals. Added new function
6411 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6412 print, verify and generate SPKACs. Based on an original idea from
6413 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6416 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6419 *) Allow the config file extension section to be overwritten on the
6420 command line. Based on an original idea from Massimiliano Pala
6421 <madwolf@comune.modena.it>. The new option is called -extensions
6422 and can be applied to ca, req and x509. Also -reqexts to override
6423 the request extensions in req and -crlexts to override the crl extensions
6427 *) Add new feature to the SPKAC handling in ca. Now you can include
6428 the same field multiple times by preceding it by "XXXX." for example:
6431 this is the same syntax as used in the req config file.
6434 *) Allow certificate extensions to be added to certificate requests. These
6435 are specified in a 'req_extensions' option of the req section of the
6436 config file. They can be printed out with the -text option to req but
6437 are otherwise ignored at present.
6440 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6441 data read consists of only the final block it would not decrypted because
6442 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6443 A misplaced 'break' also meant the decrypted final block might not be
6444 copied until the next read.
6447 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6448 a few extra parameters to the DH structure: these will be useful if
6449 for example we want the value of 'q' or implement X9.42 DH.
6452 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6453 provides hooks that allow the default DSA functions or functions on a
6454 "per key" basis to be replaced. This allows hardware acceleration and
6455 hardware key storage to be handled without major modification to the
6456 library. Also added low level modexp hooks and CRYPTO_EX structure and
6457 associated functions.
6460 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6461 as "read only": it can't be written to and the buffer it points to will
6462 not be freed. Reading from a read only BIO is much more efficient than
6463 a normal memory BIO. This was added because there are several times when
6464 an area of memory needs to be read from a BIO. The previous method was
6465 to create a memory BIO and write the data to it, this results in two
6466 copies of the data and an O(n^2) reading algorithm. There is a new
6467 function BIO_new_mem_buf() which creates a read only memory BIO from
6468 an area of memory. Also modified the PKCS#7 routines to use read only
6472 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6473 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6474 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6475 but a retry condition occured while trying to read the rest.
6478 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6479 NID_pkcs7_encrypted by default: this was wrong since this should almost
6480 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6481 the encrypted data type: this is a more sensible place to put it and it
6482 allows the PKCS#12 code to be tidied up that duplicated this
6486 *) Changed obj_dat.pl script so it takes its input and output files on
6487 the command line. This should avoid shell escape redirection problems
6491 *) Initial support for certificate extension requests, these are included
6492 in things like Xenroll certificate requests. Included functions to allow
6493 extensions to be obtained and added.
6496 *) -crlf option to s_client and s_server for sending newlines as
6497 CRLF (as required by many protocols).
6500 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6502 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6503 [Ralf S. Engelschall]
6505 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6506 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6508 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6512 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6513 DH parameters/keys (q is lost during that conversion, but the resulting
6514 DH parameters contain its length).
6516 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6517 much faster than DH_generate_parameters (which creates parameters
6518 where p = 2*q + 1), and also the smaller q makes DH computations
6519 much more efficient (160-bit exponentiation instead of 1024-bit
6520 exponentiation); so this provides a convenient way to support DHE
6521 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6522 utter importance to use
6523 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6525 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6526 when such DH parameters are used, because otherwise small subgroup
6527 attacks may become possible!
6530 *) Avoid memory leak in i2d_DHparams.
6533 *) Allow the -k option to be used more than once in the enc program:
6534 this allows the same encrypted message to be read by multiple recipients.
6537 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6538 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6539 it will always use the numerical form of the OID, even if it has a short
6543 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6544 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6545 otherwise bn_mod_exp was called. In the case of hardware keys for example
6546 no private key components need be present and it might store extra data
6547 in the RSA structure, which cannot be accessed from bn_mod_exp.
6548 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6549 private key operations.
6552 *) Added support for SPARC Linux.
6555 *) pem_password_cb function type incompatibly changed from
6556 typedef int pem_password_cb(char *buf, int size, int rwflag);
6558 ....(char *buf, int size, int rwflag, void *userdata);
6559 so that applications can pass data to their callbacks:
6560 The PEM[_ASN1]_{read,write}... functions and macros now take an
6561 additional void * argument, which is just handed through whenever
6562 the password callback is called.
6563 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6565 New function SSL_CTX_set_default_passwd_cb_userdata.
6567 Compatibility note: As many C implementations push function arguments
6568 onto the stack in reverse order, the new library version is likely to
6569 interoperate with programs that have been compiled with the old
6570 pem_password_cb definition (PEM_whatever takes some data that
6571 happens to be on the stack as its last argument, and the callback
6572 just ignores this garbage); but there is no guarantee whatsoever that
6575 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6576 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6577 problems not only on Windows, but also on some Unix platforms.
6578 To avoid problematic command lines, these definitions are now in an
6579 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6580 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6583 *) MIPS III/IV assembler module is reimplemented.
6586 *) More DES library cleanups: remove references to srand/rand and
6587 delete an unused file.
6590 *) Add support for the the free Netwide assembler (NASM) under Win32,
6591 since not many people have MASM (ml) and it can be hard to obtain.
6592 This is currently experimental but it seems to work OK and pass all
6593 the tests. Check out INSTALL.W32 for info.
6596 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6597 without temporary keys kept an extra copy of the server key,
6598 and connections with temporary keys did not free everything in case
6602 *) New function RSA_check_key and new openssl rsa option -check
6603 for verifying the consistency of RSA keys.
6604 [Ulf Moeller, Bodo Moeller]
6606 *) Various changes to make Win32 compile work:
6607 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6608 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6609 comparison" warnings.
6610 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6613 *) Add a debugging option to PKCS#5 v2 key generation function: when
6614 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6615 derived keys are printed to stderr.
6618 *) Copy the flags in ASN1_STRING_dup().
6619 [Roman E. Pavlov <pre@mo.msk.ru>]
6621 *) The x509 application mishandled signing requests containing DSA
6622 keys when the signing key was also DSA and the parameters didn't match.
6624 It was supposed to omit the parameters when they matched the signing key:
6625 the verifying software was then supposed to automatically use the CA's
6626 parameters if they were absent from the end user certificate.
6628 Omitting parameters is no longer recommended. The test was also
6629 the wrong way round! This was probably due to unusual behaviour in
6630 EVP_cmp_parameters() which returns 1 if the parameters match.
6631 This meant that parameters were omitted when they *didn't* match and
6632 the certificate was useless. Certificates signed with 'ca' didn't have
6634 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6636 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6637 The interface is as follows:
6638 Applications can use
6639 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6640 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6641 "off" is now the default.
6642 The library internally uses
6643 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6644 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6645 to disable memory-checking temporarily.
6647 Some inconsistent states that previously were possible (and were
6648 even the default) are now avoided.
6650 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6651 with each memory chunk allocated; this is occasionally more helpful
6652 than just having a counter.
6654 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6656 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6660 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6661 which largely parallels "options", but is for changing API behaviour,
6662 whereas "options" are about protocol behaviour.
6663 Initial "mode" flags are:
6665 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6666 a single record has been written.
6667 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6668 retries use the same buffer location.
6669 (But all of the contents must be
6673 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6676 *) Fix problems with no-hmac etc.
6677 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6679 *) New functions RSA_get_default_method(), RSA_set_method() and
6680 RSA_get_method(). These allows replacement of RSA_METHODs without having
6681 to mess around with the internals of an RSA structure.
6684 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6685 Also really enable memory leak checks in openssl.c and in some
6687 [Chad C. Mulligan, Bodo Moeller]
6689 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6690 up the length of negative integers. This has now been simplified to just
6691 store the length when it is first determined and use it later, rather
6692 than trying to keep track of where data is copied and updating it to
6694 [Steve Henson, reported by Brien Wheeler
6695 <bwheeler@authentica-security.com>]
6697 *) Add a new function PKCS7_signatureVerify. This allows the verification
6698 of a PKCS#7 signature but with the signing certificate passed to the
6699 function itself. This contrasts with PKCS7_dataVerify which assumes the
6700 certificate is present in the PKCS#7 structure. This isn't always the
6701 case: certificates can be omitted from a PKCS#7 structure and be
6702 distributed by "out of band" means (such as a certificate database).
6705 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6706 function prototypes in pem.h, also change util/mkdef.pl to add the
6707 necessary function names.
6710 *) mk1mf.pl (used by Windows builds) did not properly read the
6711 options set by Configure in the top level Makefile, and Configure
6712 was not even able to write more than one option correctly.
6713 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6716 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6717 file to be loaded from a BIO or FILE pointer. The BIO version will
6718 for example allow memory BIOs to contain config info.
6721 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6722 Whoever hopes to achieve shared-library compatibility across versions
6723 must use this, not the compile-time macro.
6724 (Exercise 0.9.4: Which is the minimum library version required by
6726 Note: All this applies only to multi-threaded programs, others don't
6730 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6731 through a BIO pair triggered the default case, i.e.
6732 SSLerr(...,SSL_R_UNKNOWN_STATE).
6735 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6736 can use the SSL library even if none of the specific BIOs is
6740 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6741 for the encoded length.
6742 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6744 *) Add initial documentation of the X509V3 functions.
6747 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6748 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6749 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6750 secure PKCS#8 private key format with a high iteration count.
6753 *) Fix determination of Perl interpreter: A perl or perl5
6754 _directory_ in $PATH was also accepted as the interpreter.
6755 [Ralf S. Engelschall]
6757 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6758 wrong with it but it was very old and did things like calling
6759 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6763 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6764 to use the new extension code.
6767 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6768 with macros. This should make it easier to change their form, add extra
6769 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6773 *) Add to configuration table a new entry that can specify an alternative
6774 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6775 according to Mark Crispin <MRC@Panda.COM>.
6779 *) DES CBC did not update the IV. Weird.
6782 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6783 Changing the behaviour of the former might break existing programs --
6784 where IV updating is needed, des_ncbc_encrypt can be used.
6787 *) When bntest is run from "make test" it drives bc to check its
6788 calculations, as well as internally checking them. If an internal check
6789 fails, it needs to cause bc to give a non-zero result or make test carries
6790 on without noticing the failure. Fixed.
6793 *) DES library cleanups.
6796 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6797 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6798 ciphers. NOTE: although the key derivation function has been verified
6799 against some published test vectors it has not been extensively tested
6800 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6804 *) Instead of "mkdir -p", which is not fully portable, use new
6805 Perl script "util/mkdir-p.pl".
6808 *) Rewrite the way password based encryption (PBE) is handled. It used to
6809 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6810 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6811 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6812 the 'parameter' field of the AlgorithmIdentifier is passed to the
6813 underlying key generation function so it must do its own ASN1 parsing.
6814 This has also changed the EVP_PBE_CipherInit() function which now has a
6815 'parameter' argument instead of literal salt and iteration count values
6816 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6819 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6820 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6821 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6822 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6823 value was just used as a "magic string" and not used directly its
6824 value doesn't matter.
6827 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6831 *) "linux-sparc64" configuration (ultrapenguin).
6832 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6833 "linux-sparc" configuration.
6834 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6836 *) config now generates no-xxx options for missing ciphers.
6839 *) Support the EBCDIC character set (work in progress).
6840 File ebcdic.c not yet included because it has a different license.
6841 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6843 *) Support BS2000/OSD-POSIX.
6844 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6846 *) Make callbacks for key generation use void * instead of char *.
6849 *) Make S/MIME samples compile (not yet tested).
6852 *) Additional typesafe stacks.
6855 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6859 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6861 *) New configuration variant "sco5-gcc".
6863 *) Updated some demos.
6864 [Sean O Riordain, Wade Scholine]
6866 *) Add missing BIO_free at exit of pkcs12 application.
6869 *) Fix memory leak in conf.c.
6872 *) Updates for Win32 to assembler version of MD5.
6875 *) Set #! path to perl in apps/der_chop to where we found it
6876 instead of using a fixed path.
6879 *) SHA library changes for irix64-mips4-cc.
6882 *) Improvements for VMS support.
6886 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6888 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6889 This also avoids the problems with SC4.2 and unpatched SC5.
6890 [Andy Polyakov <appro@fy.chalmers.se>]
6892 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6893 These are required because of the typesafe stack would otherwise break
6894 existing code. If old code used a structure member which used to be STACK
6895 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6896 sk_num or sk_value it would produce an error because the num, data members
6897 are not present in STACK_OF. Now it just produces a warning. sk_set
6898 replaces the old method of assigning a value to sk_value
6899 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6900 that does this will no longer work (and should use sk_set instead) but
6901 this could be regarded as a "questionable" behaviour anyway.
6904 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6905 correctly handle encrypted S/MIME data.
6908 *) Change type of various DES function arguments from des_cblock
6909 (which means, in function argument declarations, pointer to char)
6910 to des_cblock * (meaning pointer to array with 8 char elements),
6911 which allows the compiler to do more typechecking; it was like
6912 that back in SSLeay, but with lots of ugly casts.
6914 Introduce new type const_des_cblock.
6917 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6918 problems: find RecipientInfo structure that matches recipient certificate
6919 and initialise the ASN1 structures properly based on passed cipher.
6922 *) Belatedly make the BN tests actually check the results.
6925 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6926 to and from BNs: it was completely broken. New compilation option
6927 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6928 key elements as negative integers.
6931 *) Reorganize and speed up MD5.
6932 [Andy Polyakov <appro@fy.chalmers.se>]
6935 [Richard Levitte <richard@levitte.org>]
6937 *) New option -out to asn1parse to allow the parsed structure to be
6938 output to a file. This is most useful when combined with the -strparse
6939 option to examine the output of things like OCTET STRINGS.
6942 *) Make SSL library a little more fool-proof by not requiring any longer
6943 that SSL_set_{accept,connect}_state be called before
6944 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6945 in many applications because usually everything *appeared* to work as
6946 intended anyway -- now it really works as intended).
6949 *) Move openssl.cnf out of lib/.
6952 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6953 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6954 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6955 [Ralf S. Engelschall]
6957 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6958 handle PKCS#7 enveloped data properly.
6959 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6961 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6962 copying pointers. The cert_st handling is changed by this in
6963 various ways (and thus what used to be known as ctx->default_cert
6964 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6965 any longer when s->cert does not give us what we need).
6966 ssl_cert_instantiate becomes obsolete by this change.
6967 As soon as we've got the new code right (possibly it already is?),
6968 we have solved a couple of bugs of the earlier code where s->cert
6969 was used as if it could not have been shared with other SSL structures.
6971 Note that using the SSL API in certain dirty ways now will result
6972 in different behaviour than observed with earlier library versions:
6973 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6974 does not influence s as it used to.
6976 In order to clean up things more thoroughly, inside SSL_SESSION
6977 we don't use CERT any longer, but a new structure SESS_CERT
6978 that holds per-session data (if available); currently, this is
6979 the peer's certificate chain and, for clients, the server's certificate
6980 and temporary key. CERT holds only those values that can have
6981 meaningful defaults in an SSL_CTX.
6984 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6985 from the internal representation. Various PKCS#7 fixes: remove some
6986 evil casts and set the enc_dig_alg field properly based on the signing
6990 *) Allow PKCS#12 password to be set from the command line or the
6991 environment. Let 'ca' get its config file name from the environment
6992 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6996 *) Allow certificate policies extension to use an IA5STRING for the
6997 organization field. This is contrary to the PKIX definition but
6998 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7002 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7003 without disallowing inline assembler and the like for non-pedantic builds.
7006 *) Support Borland C++ builder.
7007 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7012 *) SHA-1 cleanups and performance enhancements.
7013 [Andy Polyakov <appro@fy.chalmers.se>]
7015 *) Sparc v8plus assembler for the bignum library.
7016 [Andy Polyakov <appro@fy.chalmers.se>]
7018 *) Accept any -xxx and +xxx compiler options in Configure.
7021 *) Update HPUX configuration.
7024 *) Add missing sk_<type>_unshift() function to safestack.h
7025 [Ralf S. Engelschall]
7027 *) New function SSL_CTX_use_certificate_chain_file that sets the
7028 "extra_cert"s in addition to the certificate. (This makes sense
7029 only for "PEM" format files, as chains as a whole are not
7033 *) Support verify_depth from the SSL API.
7034 x509_vfy.c had what can be considered an off-by-one-error:
7035 Its depth (which was not part of the external interface)
7036 was actually counting the number of certificates in a chain;
7037 now it really counts the depth.
7040 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7041 instead of X509err, which often resulted in confusing error
7042 messages since the error codes are not globally unique
7043 (e.g. an alleged error in ssl3_accept when a certificate
7044 didn't match the private key).
7046 *) New function SSL_CTX_set_session_id_context that allows to set a default
7047 value (so that you don't need SSL_set_session_id_context for each
7048 connection using the SSL_CTX).
7051 *) OAEP decoding bug fix.
7054 *) Support INSTALL_PREFIX for package builders, as proposed by
7058 *) New Configure options "threads" and "no-threads". For systems
7059 where the proper compiler options are known (currently Solaris
7060 and Linux), "threads" is the default.
7063 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7066 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7067 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7068 such as /usr/local/bin.
7071 *) "make linux-shared" to build shared libraries.
7072 [Niels Poppe <niels@netbox.org>]
7074 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7077 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7078 extension adding in x509 utility.
7081 *) Remove NOPROTO sections and error code comments.
7084 *) Partial rewrite of the DEF file generator to now parse the ANSI
7088 *) New Configure options --prefix=DIR and --openssldir=DIR.
7091 *) Complete rewrite of the error code script(s). It is all now handled
7092 by one script at the top level which handles error code gathering,
7093 header rewriting and C source file generation. It should be much better
7094 than the old method: it now uses a modified version of Ulf's parser to
7095 read the ANSI prototypes in all header files (thus the old K&R definitions
7096 aren't needed for error creation any more) and do a better job of
7097 translating function codes into names. The old 'ASN1 error code imbedded
7098 in a comment' is no longer necessary and it doesn't use .err files which
7099 have now been deleted. Also the error code call doesn't have to appear all
7100 on one line (which resulted in some large lines...).
7103 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7106 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7107 0 (which usually indicates a closed connection), but continue reading.
7110 *) Fix some race conditions.
7113 *) Add support for CRL distribution points extension. Add Certificate
7114 Policies and CRL distribution points documentation.
7117 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7120 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7121 8 of keying material. Merlin has also confirmed interop with this fix
7122 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7123 [Merlin Hughes <merlin@baltimore.ie>]
7125 *) Fix lots of warnings.
7126 [Richard Levitte <levitte@stacken.kth.se>]
7128 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7129 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7130 [Richard Levitte <levitte@stacken.kth.se>]
7132 *) Fix problems with sizeof(long) == 8.
7133 [Andy Polyakov <appro@fy.chalmers.se>]
7135 *) Change functions to ANSI C.
7138 *) Fix typos in error codes.
7139 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7141 *) Remove defunct assembler files from Configure.
7144 *) SPARC v8 assembler BIGNUM implementation.
7145 [Andy Polyakov <appro@fy.chalmers.se>]
7147 *) Support for Certificate Policies extension: both print and set.
7148 Various additions to support the r2i method this uses.
7151 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7152 return a const string when you are expecting an allocated buffer.
7155 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7156 types DirectoryString and DisplayText.
7159 *) Add code to allow r2i extensions to access the configuration database,
7160 add an LHASH database driver and add several ctx helper functions.
7163 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7164 fail when they extended the size of a BIGNUM.
7167 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7168 support typesafe stack.
7171 *) Fix typo in SSL_[gs]et_options().
7172 [Nils Frostberg <nils@medcom.se>]
7174 *) Delete various functions and files that belonged to the (now obsolete)
7175 old X509V3 handling code.
7178 *) New Configure option "rsaref".
7181 *) Don't auto-generate pem.h.
7184 *) Introduce type-safe ASN.1 SETs.
7187 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7188 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7190 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7191 that links with OpenSSL (well at least cause lots of warnings), but fear
7192 not: the conversion is trivial, and it eliminates loads of evil casts. A
7193 few STACKed things have been converted already. Feel free to convert more.
7194 In the fullness of time, I'll do away with the STACK type altogether.
7197 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7198 specified in <certfile> by updating the entry in the index.txt file.
7199 This way one no longer has to edit the index.txt file manually for
7200 revoking a certificate. The -revoke option does the gory details now.
7201 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7203 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7204 `-text' option at all and this way the `-noout -text' combination was
7205 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7206 [Ralf S. Engelschall]
7208 *) Make sure a corresponding plain text error message exists for the
7209 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7210 verify callback function determined that a certificate was revoked.
7211 [Ralf S. Engelschall]
7213 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7214 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7215 all available cipers including rc5, which was forgotten until now.
7216 In order to let the testing shell script know which algorithms
7217 are available, a new (up to now undocumented) command
7218 "openssl list-cipher-commands" is used.
7221 *) Bugfix: s_client occasionally would sleep in select() when
7222 it should have checked SSL_pending() first.
7225 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7226 the raw DSA values prior to ASN.1 encoding.
7229 *) Tweaks to Configure
7230 [Niels Poppe <niels@netbox.org>]
7232 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7236 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7239 *) New config option to avoid instructions that are illegal on the 80386.
7240 The default code is faster, but requires at least a 486.
7243 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7244 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7245 same as SSL2_VERSION anyway.
7248 *) New "-showcerts" option for s_client.
7251 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7252 application. Various cleanups and fixes.
7255 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7256 modify error routines to work internally. Add error codes and PBE init
7257 to library startup routines.
7260 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7261 packing functions to asn1 and evp. Changed function names and error
7262 codes along the way.
7265 *) PKCS12 integration: and so it begins... First of several patches to
7266 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7267 objects to objects.h
7270 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7271 and display support for Thawte strong extranet extension.
7274 *) Add LinuxPPC support.
7275 [Jeff Dubrule <igor@pobox.org>]
7277 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7278 bn_div_words in alpha.s.
7279 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7281 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7282 OAEP isn't supported when OpenSSL is built with RSAref.
7283 [Ulf Moeller <ulf@fitug.de>]
7285 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7286 so they no longer are missing under -DNOPROTO.
7287 [Soren S. Jorvang <soren@t.dk>]
7290 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7292 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7293 doesn't work when the session is reused. Coming soon!
7296 *) Fix a security hole, that allows sessions to be reused in the wrong
7297 context thus bypassing client cert protection! All software that uses
7298 client certs and session caches in multiple contexts NEEDS PATCHING to
7299 allow session reuse! A fuller solution is in the works.
7300 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7302 *) Some more source tree cleanups (removed obsolete files
7303 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7304 permission on "config" script to be executable) and a fix for the INSTALL
7306 [Ulf Moeller <ulf@fitug.de>]
7308 *) Remove some legacy and erroneous uses of malloc, free instead of
7310 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7312 *) Make rsa_oaep_test return non-zero on error.
7313 [Ulf Moeller <ulf@fitug.de>]
7315 *) Add support for native Solaris shared libraries. Configure
7316 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7317 if someone would make that last step automatic.
7318 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7320 *) ctx_size was not built with the right compiler during "make links". Fixed.
7323 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7324 except NULL ciphers". This means the default cipher list will no longer
7325 enable NULL ciphers. They need to be specifically enabled e.g. with
7326 the string "DEFAULT:eNULL".
7329 *) Fix to RSA private encryption routines: if p < q then it would
7330 occasionally produce an invalid result. This will only happen with
7331 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7334 *) Be less restrictive and allow also `perl util/perlpath.pl
7335 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7336 because this way one can also use an interpreter named `perl5' (which is
7337 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7338 installed as `perl').
7339 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7341 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7342 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7344 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7345 advapi32.lib to Win32 build and change the pem test comparision
7346 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7347 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7348 and crypto/des/ede_cbcm_enc.c.
7351 *) DES quad checksum was broken on big-endian architectures. Fixed.
7354 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7355 Win32 test batch file so it (might) work again. The Win32 test batch file
7356 is horrible: I feel ill....
7359 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7360 in e_os.h. Audit of header files to check ANSI and non ANSI
7361 sections: 10 functions were absent from non ANSI section and not exported
7362 from Windows DLLs. Fixed up libeay.num for new functions.
7365 *) Make `openssl version' output lines consistent.
7366 [Ralf S. Engelschall]
7368 *) Fix Win32 symbol export lists for BIO functions: Added
7369 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7370 to ms/libeay{16,32}.def.
7371 [Ralf S. Engelschall]
7373 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7374 fine under Unix and passes some trivial tests I've now added. But the
7375 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7376 added to make sure no one expects that this stuff really works in the
7377 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7378 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7380 [Ralf S. Engelschall]
7382 *) Fix the generation of two part addresses in perl.
7383 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7385 *) Add config entry for Linux on MIPS.
7386 [John Tobey <jtobey@channel1.com>]
7388 *) Make links whenever Configure is run, unless we are on Windoze.
7391 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7392 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7396 *) Add a useful kludge to allow package maintainers to specify compiler and
7397 other platforms details on the command line without having to patch the
7398 Configure script everytime: One now can use ``perl Configure
7399 <id>:<details>'', i.e. platform ids are allowed to have details appended
7400 to them (seperated by colons). This is treated as there would be a static
7401 pre-configured entry in Configure's %table under key <id> with value
7402 <details> and ``perl Configure <id>'' is called. So, when you want to
7403 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7404 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7405 now, which overrides the FreeBSD-elf entry on-the-fly.
7406 [Ralf S. Engelschall]
7408 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7411 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7412 on the `perl Configure ...' command line. This way one can compile
7413 OpenSSL libraries with Position Independent Code (PIC) which is needed
7414 for linking it into DSOs.
7415 [Ralf S. Engelschall]
7417 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7421 *) Cleaned up the LICENSE document: The official contact for any license
7422 questions now is the OpenSSL core team under openssl-core@openssl.org.
7423 And add a paragraph about the dual-license situation to make sure people
7424 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7425 to the OpenSSL toolkit.
7426 [Ralf S. Engelschall]
7428 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7429 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7430 Additonally cleaned up the `make links' target: Remove unnecessary
7431 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7432 to speed processing and no longer clutter the display with confusing
7433 stuff. Instead only the actually done links are displayed.
7434 [Ralf S. Engelschall]
7436 *) Permit null encryption ciphersuites, used for authentication only. It used
7437 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7438 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7442 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7443 signed attributes when verifying signatures (this would break them),
7444 the detached data encoding was wrong and public keys obtained using
7445 X509_get_pubkey() weren't freed.
7448 *) Add text documentation for the BUFFER functions. Also added a work around
7449 to a Win95 console bug. This was triggered by the password read stuff: the
7450 last character typed gets carried over to the next fread(). If you were
7451 generating a new cert request using 'req' for example then the last
7452 character of the passphrase would be CR which would then enter the first
7456 *) Added the new `Includes OpenSSL Cryptography Software' button as
7457 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7458 button and can be used by applications based on OpenSSL to show the
7459 relationship to the OpenSSL project.
7460 [Ralf S. Engelschall]
7462 *) Remove confusing variables in function signatures in files
7463 ssl/ssl_lib.c and ssl/ssl.h.
7464 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7466 *) Don't install bss_file.c under PREFIX/include/
7467 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7469 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7470 functions that return function pointers and has support for NT specific
7471 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7472 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7473 unsigned to signed types: this was killing the Win32 compile.
7476 *) Add new certificate file to stack functions,
7477 SSL_add_dir_cert_subjects_to_stack() and
7478 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7479 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7480 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7481 This means that Apache-SSL and similar packages don't have to mess around
7482 to add as many CAs as they want to the preferred list.
7485 *) Experiment with doxygen documentation. Currently only partially applied to
7487 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7488 openssl.doxy as the configuration file.
7491 *) Get rid of remaining C++-style comments which strict C compilers hate.
7492 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7494 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7495 compiled in by default: it has problems with large keys.
7498 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7499 DH private keys and/or callback functions which directly correspond to
7500 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7501 is needed for applications which have to configure certificates on a
7502 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7504 For the RSA certificate situation is makes no difference, but
7505 for the DSA certificate situation this fixes the "no shared cipher"
7506 problem where the OpenSSL cipher selection procedure failed because the
7507 temporary keys were not overtaken from the context and the API provided
7508 no way to reconfigure them.
7509 The new functions now let applications reconfigure the stuff and they
7510 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7511 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7512 non-public-API function ssl_cert_instantiate() is used as a helper
7513 function and also to reduce code redundancy inside ssl_rsa.c.
7514 [Ralf S. Engelschall]
7516 *) Move s_server -dcert and -dkey options out of the undocumented feature
7517 area because they are useful for the DSA situation and should be
7518 recognized by the users.
7519 [Ralf S. Engelschall]
7521 *) Fix the cipher decision scheme for export ciphers: the export bits are
7522 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7523 SSL_EXP_MASK. So, the original variable has to be used instead of the
7524 already masked variable.
7525 [Richard Levitte <levitte@stacken.kth.se>]
7527 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7528 [Richard Levitte <levitte@stacken.kth.se>]
7530 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7531 from `int' to `unsigned int' because it's a length and initialized by
7532 EVP_DigestFinal() which expects an `unsigned int *'.
7533 [Richard Levitte <levitte@stacken.kth.se>]
7535 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7536 script. Instead use the usual Shell->Perl transition trick.
7537 [Ralf S. Engelschall]
7539 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7540 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7541 -noout -modulus' as it's already the case for `openssl rsa -noout
7542 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7543 currently the public key is printed (a decision which was already done by
7544 `openssl dsa -modulus' in the past) which serves a similar purpose.
7545 Additionally the NO_RSA no longer completely removes the whole -modulus
7546 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7548 [Ralf S. Engelschall]
7550 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7551 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7552 [Arne Ansper <arne@ats.cyber.ee>]
7554 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7555 to be added. Now both 'req' and 'ca' can use new objects defined in the
7559 *) Add cool BIO that does syslog (or event log on NT).
7560 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7562 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7563 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7564 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7565 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7568 *) Add preliminary config info for new extension code.
7571 *) Make RSA_NO_PADDING really use no padding.
7572 [Ulf Moeller <ulf@fitug.de>]
7574 *) Generate errors when private/public key check is done.
7577 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7578 for some CRL extensions and new objects added.
7581 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7582 key usage extension and fuller support for authority key id.
7585 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7586 padding method for RSA, which is recommended for new applications in PKCS
7587 #1 v2.0 (RFC 2437, October 1998).
7588 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7589 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7590 against Bleichbacher's attack on RSA.
7591 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7594 *) Updates to the new SSL compression code
7595 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7597 *) Fix so that the version number in the master secret, when passed
7598 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7599 (because the server will not accept higher), that the version number
7600 is 0x03,0x01, not 0x03,0x00
7601 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7603 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7604 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7605 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7608 *) Support for RAW extensions where an arbitrary extension can be
7609 created by including its DER encoding. See apps/openssl.cnf for
7613 *) Make sure latest Perl versions don't interpret some generated C array
7614 code as Perl array code in the crypto/err/err_genc.pl script.
7615 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7617 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7618 not many people have the assembler. Various Win32 compilation fixes and
7619 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7623 *) Modify configure script 'Configure' to automatically create crypto/date.h
7624 file under Win32 and also build pem.h from pem.org. New script
7625 util/mkfiles.pl to create the MINFO file on environments that can't do a
7626 'make files': perl util/mkfiles.pl >MINFO should work.
7629 *) Major rework of DES function declarations, in the pursuit of correctness
7630 and purity. As a result, many evil casts evaporated, and some weirdness,
7631 too. You may find this causes warnings in your code. Zapping your evil
7632 casts will probably fix them. Mostly.
7635 *) Fix for a typo in asn1.h. Bug fix to object creation script
7636 obj_dat.pl. It considered a zero in an object definition to mean
7637 "end of object": none of the objects in objects.h have any zeros
7638 so it wasn't spotted.
7639 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7641 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7642 Masking (CBCM). In the absence of test vectors, the best I have been able
7643 to do is check that the decrypt undoes the encrypt, so far. Send me test
7644 vectors if you have them.
7647 *) Correct calculation of key length for export ciphers (too much space was
7648 allocated for null ciphers). This has not been tested!
7651 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7652 message is now correct (it understands "crypto" and "ssl" on its
7653 command line). There is also now an "update" option. This will update
7654 the util/ssleay.num and util/libeay.num files with any new functions.
7656 perl util/mkdef.pl crypto ssl update
7657 it will update them.
7660 *) Overhauled the Perl interface (perl/*):
7661 - ported BN stuff to OpenSSL's different BN library
7662 - made the perl/ source tree CVS-aware
7663 - renamed the package from SSLeay to OpenSSL (the files still contain
7664 their history because I've copied them in the repository)
7665 - removed obsolete files (the test scripts will be replaced
7666 by better Test::Harness variants in the future)
7667 [Ralf S. Engelschall]
7669 *) First cut for a very conservative source tree cleanup:
7670 1. merge various obsolete readme texts into doc/ssleay.txt
7671 where we collect the old documents and readme texts.
7672 2. remove the first part of files where I'm already sure that we no
7673 longer need them because of three reasons: either they are just temporary
7674 files which were left by Eric or they are preserved original files where
7675 I've verified that the diff is also available in the CVS via "cvs diff
7676 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7677 the crypto/md/ stuff).
7678 [Ralf S. Engelschall]
7680 *) More extension code. Incomplete support for subject and issuer alt
7681 name, issuer and authority key id. Change the i2v function parameters
7682 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7683 what that's for :-) Fix to ASN1 macro which messed up
7684 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7687 *) Preliminary support for ENUMERATED type. This is largely copied from the
7691 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7692 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7694 *) Make sure `make rehash' target really finds the `openssl' program.
7695 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7697 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7698 like to hear about it if this slows down other processors.
7701 *) Add CygWin32 platform information to Configure script.
7702 [Alan Batie <batie@aahz.jf.intel.com>]
7704 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7705 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7707 *) New program nseq to manipulate netscape certificate sequences
7710 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7714 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7715 but the BN code had some problems that would cause failures when
7716 doing certificate verification and some other functions.
7717 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7719 *) Add ASN1 and PEM code to support netscape certificate sequences.
7722 *) Add ASN1 and PEM code to support netscape certificate sequences.
7725 *) Add several PKIX and private extended key usage OIDs.
7728 *) Modify the 'ca' program to handle the new extension code. Modify
7729 openssl.cnf for new extension format, add comments.
7732 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7733 and add a sample to openssl.cnf so req -x509 now adds appropriate
7737 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7738 error code, add initial support to X509_print() and x509 application.
7741 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7742 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7743 stuff is currently isolated and isn't even compiled yet.
7746 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7747 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7748 Removed the versions check from X509 routines when loading extensions:
7749 this allows certain broken certificates that don't set the version
7750 properly to be processed.
7753 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7754 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7755 can still be regenerated with "make depend".
7758 *) Spelling mistake in C version of CAST-128.
7759 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7761 *) Changes to the error generation code. The perl script err-code.pl
7762 now reads in the old error codes and retains the old numbers, only
7763 adding new ones if necessary. It also only changes the .err files if new
7764 codes are added. The makefiles have been modified to only insert errors
7765 when needed (to avoid needlessly modifying header files). This is done
7766 by only inserting errors if the .err file is newer than the auto generated
7767 C file. To rebuild all the error codes from scratch (the old behaviour)
7768 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7769 or delete all the .err files.
7772 *) CAST-128 was incorrectly implemented for short keys. The C version has
7773 been fixed, but is untested. The assembler versions are also fixed, but
7774 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7775 to regenerate it if needed.
7776 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7777 Hagino <itojun@kame.net>]
7779 *) File was opened incorrectly in randfile.c.
7780 [Ulf Möller <ulf@fitug.de>]
7782 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7783 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7784 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7785 al: it's just almost always a UTCTime. Note this patch adds new error
7786 codes so do a "make errors" if there are problems.
7789 *) Correct Linux 1 recognition in config.
7790 [Ulf Möller <ulf@fitug.de>]
7792 *) Remove pointless MD5 hash when using DSA keys in ca.
7793 [Anonymous <nobody@replay.com>]
7795 *) Generate an error if given an empty string as a cert directory. Also
7796 generate an error if handed NULL (previously returned 0 to indicate an
7797 error, but didn't set one).
7798 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7800 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7803 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7804 parameters. This was causing a warning which killed off the Win32 compile.
7807 *) Remove C++ style comments from crypto/bn/bn_local.h.
7808 [Neil Costigan <neil.costigan@celocom.com>]
7810 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7811 based on a text string, looking up short and long names and finally
7812 "dot" format. The "dot" format stuff didn't work. Added new function
7813 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7814 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7815 OID is not part of the table.
7818 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7819 X509_LOOKUP_by_alias().
7822 *) Sort openssl functions by name.
7825 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7826 encryption from sample DSA keys (in case anyone is interested the password
7830 *) Make _all_ *_free functions accept a NULL pointer.
7831 [Frans Heymans <fheymans@isaserver.be>]
7833 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7835 [Anonymous <nobody@replay.com>]
7837 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7838 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7840 *) Don't blow it for numeric -newkey arguments to apps/req.
7841 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7843 *) Temp key "for export" tests were wrong in s3_srvr.c.
7844 [Anonymous <nobody@replay.com>]
7846 *) Add prototype for temp key callback functions
7847 SSL_CTX_set_tmp_{rsa,dh}_callback().
7850 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7851 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7854 *) X509_name_add_entry() freed the wrong thing after an error.
7855 [Arne Ansper <arne@ats.cyber.ee>]
7857 *) rsa_eay.c would attempt to free a NULL context.
7858 [Arne Ansper <arne@ats.cyber.ee>]
7860 *) BIO_s_socket() had a broken should_retry() on Windoze.
7861 [Arne Ansper <arne@ats.cyber.ee>]
7863 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7864 [Arne Ansper <arne@ats.cyber.ee>]
7866 *) Make sure the already existing X509_STORE->depth variable is initialized
7867 in X509_STORE_new(), but document the fact that this variable is still
7868 unused in the certificate verification process.
7869 [Ralf S. Engelschall]
7871 *) Fix the various library and apps files to free up pkeys obtained from
7872 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7875 *) Fix reference counting in X509_PUBKEY_get(). This makes
7876 demos/maurice/example2.c work, amongst others, probably.
7877 [Steve Henson and Ben Laurie]
7879 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7880 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7881 are no longer created. This way we have a single and consistent command
7882 line interface `openssl <command>', similar to `cvs <command>'.
7883 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7885 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7886 BIT STRING wrapper always have zero unused bits.
7889 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7892 *) Make the top-level INSTALL documentation easier to understand.
7895 *) Makefiles updated to exit if an error occurs in a sub-directory
7896 make (including if user presses ^C) [Paul Sutton]
7898 *) Make Montgomery context stuff explicit in RSA data structure.
7901 *) Fix build order of pem and err to allow for generated pem.h.
7904 *) Fix renumbering bug in X509_NAME_delete_entry().
7907 *) Enhanced the err-ins.pl script so it makes the error library number
7908 global and can add a library name. This is needed for external ASN1 and
7909 other error libraries.
7912 *) Fixed sk_insert which never worked properly.
7915 *) Fix ASN1 macros so they can handle indefinite length construted
7916 EXPLICIT tags. Some non standard certificates use these: they can now
7920 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7921 into a single doc/ssleay.txt bundle. This way the information is still
7922 preserved but no longer messes up this directory. Now it's new room for
7923 the new set of documenation files.
7924 [Ralf S. Engelschall]
7926 *) SETs were incorrectly DER encoded. This was a major pain, because they
7927 shared code with SEQUENCEs, which aren't coded the same. This means that
7928 almost everything to do with SETs or SEQUENCEs has either changed name or
7929 number of arguments.
7930 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7932 *) Fix test data to work with the above.
7935 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7936 was already fixed by Eric for 0.9.1 it seems.
7937 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7939 *) Autodetect FreeBSD3.
7942 *) Fix various bugs in Configure. This affects the following platforms:
7946 unixware-2.0-pentium
7950 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7951 before they are needed.
7954 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7958 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7960 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7961 changed SSLeay to OpenSSL in version strings.
7962 [Ralf S. Engelschall]
7964 *) Some fixups to the top-level documents.
7967 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7968 because the symlink to include/ was missing.
7969 [Ralf S. Engelschall]
7971 *) Incorporated the popular no-RSA/DSA-only patches
7972 which allow to compile a RSA-free SSLeay.
7973 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7975 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7976 when "ssleay" is still not found.
7977 [Ralf S. Engelschall]
7979 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7980 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7982 *) Updated the README file.
7983 [Ralf S. Engelschall]
7985 *) Added various .cvsignore files in the CVS repository subdirs
7986 to make a "cvs update" really silent.
7987 [Ralf S. Engelschall]
7989 *) Recompiled the error-definition header files and added
7990 missing symbols to the Win32 linker tables.
7991 [Ralf S. Engelschall]
7993 *) Cleaned up the top-level documents;
7994 o new files: CHANGES and LICENSE
7995 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7996 o merged COPYRIGHT into LICENSE
7997 o removed obsolete TODO file
7998 o renamed MICROSOFT to INSTALL.W32
7999 [Ralf S. Engelschall]
8001 *) Removed dummy files from the 0.9.1b source tree:
8002 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8003 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8004 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8005 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8006 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8007 [Ralf S. Engelschall]
8009 *) Added various platform portability fixes.
8012 *) The Genesis of the OpenSSL rpject:
8013 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8014 Young and Tim J. Hudson created while they were working for C2Net until
8016 [The OpenSSL Project]
8019 Changes between 0.9.0b and 0.9.1b [not released]
8021 *) Updated a few CA certificates under certs/
8024 *) Changed some BIGNUM api stuff.
8027 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8028 DGUX x86, Linux Alpha, etc.
8031 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8032 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8036 *) Add -strparse option to asn1pars program which parses nested
8038 [Dr Stephen Henson <shenson@bigfoot.com>]
8040 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8043 *) DSA fix for "ca" program.
8046 *) Added "-genkey" option to "dsaparam" program.
8049 *) Added RIPE MD160 (rmd160) message digest.
8052 *) Added -a (all) option to "ssleay version" command.
8055 *) Added PLATFORM define which is the id given to Configure.
8058 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8061 *) Extended the ASN.1 parser routines.
8064 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8067 *) Added a BN_CTX to the BN library.
8070 *) Fixed the weak key values in DES library
8073 *) Changed API in EVP library for cipher aliases.
8076 *) Added support for RC2/64bit cipher.
8079 *) Converted the lhash library to the crypto/mem.c functions.
8082 *) Added more recognized ASN.1 object ids.
8085 *) Added more RSA padding checks for SSL/TLS.
8088 *) Added BIO proxy/filter functionality.
8091 *) Added extra_certs to SSL_CTX which can be used
8092 send extra CA certificates to the client in the CA cert chain sending
8093 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8096 *) Now Fortezza is denied in the authentication phase because
8097 this is key exchange mechanism is not supported by SSLeay at all.
8100 *) Additional PKCS1 checks.
8103 *) Support the string "TLSv1" for all TLS v1 ciphers.
8106 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8107 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8110 *) Fixed a few memory leaks.
8113 *) Fixed various code and comment typos.
8116 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8117 bytes sent in the client random.
8118 [Edward Bishop <ebishop@spyglass.com>]